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Abe K, Sugiyama A, Ito N, Miwata K, Kitahara Y, Okimoto M, Mirzaev U, Kurisu A, Akita T, Ko K, Takahashi K, Kubo T, Takafuta T, Tanaka J. Variant-specific Symptoms After COVID-19: A Hospital-based Study in Hiroshima. J Epidemiol 2024; 34:238-246. [PMID: 37574270 PMCID: PMC10999520 DOI: 10.2188/jea.je20230103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND Symptoms after novel coronavirus disease 2019 (COVID-19) recovery by severe acute respiratory syndrome coronavirus 2 strains are unspecified. METHODS This self-administered questionnaire-based study was conducted to investigate symptoms after COVID-19 recovery at one of the main hospitals for COVID-19 treatment in Hiroshima, Japan, from September 2020 to March 2022 for patients who visited follow-up consultations after COVID-19. Study subjects were divided into four groups (Wild-type, Alpha, Delta, and Omicron periods) according to COVID-19 onset date. Hierarchical cluster analysis was performed to determine symptom clusters and investigate risk factors for each symptom cluster using multivariate analysis. RESULTS Among 385 patients who enrolled in this study, 249 patients had any persistent symptoms at a median of 23.5 (interquartile range, 20-31) days after COVID-19 onset. Among patients with any persistent symptoms, symptom clusters including olfactory or taste disorders, respiratory symptoms, and cardiac symptoms were found. Respiratory symptoms were more frequent among patients infected in the Omicron period compared to the Wild-type period (adjusted odds ratio [AOR] 3.13; 95% confidence interval [CI], 1.31-7.48). Compared to patients who recovered from mild COVID-19, patients who needed oxygen or ventilation support suffered fewer post-COVID-19 respiratory symptoms (AOR 0.46; 95% CI, 0.22-0.97) but more post-COVID-19 cardiac symptoms among them (AOR 2.67; 95% CI, 1.26-5.65). Olfactory or taste disorders were fewer among patients infected in the Omicron period compared to the Wild-type period (AOR 0.14; 95% CI, 0.04-0.46). CONCLUSION This study revealed that symptoms after COVID-19 may vary depending on the infected strain.
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Affiliation(s)
- Kanon Abe
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Noriaki Ito
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Kei Miwata
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | | | - Mafumi Okimoto
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Ulugbek Mirzaev
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Department of Hepatology, Scientific Research Institute of Virology, Ministry of Health of Uzbekistan, Tashkent, Uzbekistan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Mirzaev UK, Ko K, E B, Phyo Z, Chhoung C, Ataa AG, Sugiyama A, Akita T, Takahashi K, Tanaka J. Epidemiological assessment of hepatitis E virus infection among 1565 pregnant women in Siem Reap, Cambodia using an in-house double antigen sandwich ELISA. Hepatol Res 2024. [PMID: 38573773 DOI: 10.1111/hepr.14041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 02/24/2024] [Accepted: 03/11/2024] [Indexed: 04/06/2024]
Abstract
AIM This study investigated hepatitis E virus (HEV) prevalence among pregnant women in Siem Reap, Cambodia, by developing a cost-effective, user-friendly in-house enzyme-linked immunosorbent assay (ELISA) for detecting total anti-HEV immunoglobulins (Ig). METHODS The in-house ELISA was designed for large-scale screening in resource-limited settings. Its performance was benchmarked against two commercial tests: the Anti-HEV IgG EIA (Institute of Immunology, Co. Ltd) and the Anti-HEV IgG RecomLine LIA (Mikrogen). The in-house ELISA demonstrated a sensitivity of 76% and 71.4%, and a specificity of 94.1% and 98.6%, against the two commercial tests, respectively, with overall agreement rates of 92.4% and 94.3%. RESULTS Among 1565 tested pregnant women, 11.6% were anti-HEV positive. Prevalence increased with age, particularly in women aged 35-40 years and over 40 years. No significant associations were found with education, number of children, family size, or history of blood transfusion and surgery, except for the occupation of the family head as a public officer. Of the total anti-HEV positive women, 22.7% had anti-HEV IgM, indicating recent or ongoing infection. CONCLUSION The study concluded that the in-house ELISA is a viable option for HEV screening in regions with limited resources due to its high accuracy and cost-effectiveness. It is particularly suitable for large-scale studies and public health interventions in areas where HEV is endemic and poses a significant risk to pregnant women.
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Affiliation(s)
- Ulugbek Khudayberdievich Mirzaev
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
- Department of Hepatology, Research Institute of Virology, Tashkent, Uzbekistan
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
- National Payment Certification Agency, Ministry of Economy and Finance, Phnom Penh, Cambodia
| | - Zayar Phyo
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Chanroth Chhoung
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Akuffo Golda Ataa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
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Kumada T, Toyoda H, Ogawa S, Gotoh T, Suzuki Y, Sugimoto K, Yoshida Y, Kuroda H, Kamada Y, Sumida Y, Ito T, Akita T, Tanaka J. Severe hepatic steatosis promotes increased liver stiffness in the early stages of metabolic dysfunction-associated steatotic liver disease. Liver Int 2024. [PMID: 38558221 DOI: 10.1111/liv.15920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND & AIMS The predictors of progression from steatosis to more advanced stages of metabolic dysfunction-associated steatotic liver disease (MASLD) remain unclear. We evaluated the association between the quantity of hepatic steatosis and longitudinal changes in liver stiffness measurements (LSMs) using magnetic resonance elastography (MRE) in patients with MASLD. METHODS We retrospectively analysed patients with MASLD who underwent at least two serial MRE and magnetic resonance imaging-based proton density fat fraction (MRI-PDFF) examinations at least 1 year apart. Fine-Gray competitive proportional hazard regression was used to identify LSM progression and regression factors. RESULTS A total of 471 patients were enrolled. Factors linked to LSM progression were steatosis grade 3 (MRI-PDFF ≥17.1%, adjusted hazard ratio [aHR] 2.597; 95% confidence interval [CI] 1.483-4.547) and albumin-bilirubin grade 2 or 3 (aHR 2.790; 95% CI 1.284-6.091), while the only factor linked to LSM regression was % decrease rate of MRI-PDFF ≥5% (aHR 2.781; 95% CI 1.584-4.883). Steatosis grade 3 correlated with a higher incidence rate of LSM progression than steatosis grade 1 (MRI-PDFF <11.3%) in patients with LSM stage 0 (<2.5 kilopascal [kPa]), and a % annual decrease rate of MRI-PDFF ≥5% correlated with a higher incidence rate of LSM regression than that of MRI-PDFF >-5% and <5% in patients with LSM stage 1 or 2-4 (≥2.5 kPa). CONCLUSIONS Severe hepatic steatosis was linked to significant LSM progression in patients with MASLD and low LSM (<2.5 kPa).
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Affiliation(s)
- Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Gifu, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Sadanobu Ogawa
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Tatsuya Gotoh
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Yasuaki Suzuki
- Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Yoshida
- Department of Gastroenterology and Hepatology, Suita Municipal Hospital, Osaka, Japan
| | - Hidekatsu Kuroda
- Division of Hepatology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - Yoshihiro Kamada
- Department of Advanced Metabolic Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshio Sumida
- Department of Healthcare Management, International University of Health and Welfare, Tokyo, Japan
| | - Takanori Ito
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
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Kumada T, Toyoda H, Ogawa S, Gotoh T, Suzuki Y, Imajo K, Sugimoto K, Kakegawa T, Kuroda H, Yasui Y, Tamaki N, Kurosaki M, Izumi N, Akita T, Tanaka J, Nakajima A. Advanced fibrosis leads to overestimation of steatosis with quantitative ultrasound in individuals without hepatic steatosis. Ultrasonography 2024; 43:121-131. [PMID: 38316132 PMCID: PMC10915114 DOI: 10.14366/usg.23194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 02/07/2024] Open
Abstract
PURPOSE The effect of hepatic fibrosis stage on quantitative ultrasound based on the attenuation coefficient (AC) for liver lipid quantification is controversial. The objective of this study was to determine how the degree of fibrosis assessed by magnetic resonance (MR) elastography affects AC based on the ultrasound-guided attenuation parameter according to the grade of hepatic steatosis, using magnetic resonance imaging (MRI)-derived proton density fat fraction (MRIderived PDFF) as the reference standard. METHODS Between February 2020 and April 2021, 982 patients with chronic liver disease who underwent AC and MRI-derived PDFF measurement as well as MR elastography were enrolled. Multiple regression was used to investigate whether AC was affected by the degree of liver stiffness. RESULTS AC increased as liver stiffness progressed in 344 patients without hepatic steatosis (P=0.009). In multivariable analysis, AC was positively correlated with skin-capsule distance (P<0.001), MR elastography value (P=0.037), and MRI-derived PDFF (P<0.001) in patients without hepatic steatosis. In 52 of 982 patients (5%), the correlation between AC and MRIderived PDFF fell outside the 95% confidence interval for the regression line slope. Patients with MRI-derived PDFF lower than their AC (n=36) had higher fibrosis-4 scores, albumin-bilirubin scores, and MR elastography values than patients with MRI-derived PDFF greater than their AC (n=16; P=0.018, P=0.001, and P=0.011, respectively). CONCLUSION AC is affected by liver fibrosis (MR elastography value ≥6.7 kPa) only in patients without hepatic steatosis (MRI-derived PDFF <5.2%). These values should be interpreted with caution in patients with advanced liver fibrosis.
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Affiliation(s)
- Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Sadanobu Ogawa
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Tatsuya Gotoh
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Yasuaki Suzuki
- Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan
| | - Kento Imajo
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hidekatsu Kuroda
- Division of Hepatology, Department of Internal Medicine, Iwate Medical University, Morioka, Japan
| | - Yutaka Yasui
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Nobuharu Tamaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Masayuki Kurosaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Namiki Izumi
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Toyoda H, Koshiyama Y, Yasuda S, Kumada T, Chayama K, Akita T, Tanaka J. Effect of previous infection with hepatitis B virus on the incidence of hepatocellular carcinoma after sustained virologic response in patients with chronic hepatitis C virus infection. J Viral Hepat 2024; 31:137-142. [PMID: 38146596 DOI: 10.1111/jvh.13907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/30/2023] [Accepted: 12/08/2023] [Indexed: 12/27/2023]
Abstract
Previous infection with hepatitis B virus (HBV), which is assessed by HBV core antibody (HBcAb) or surface antibody (HBsAb) titres, has reportedly been associated with an increased risk of developing hepatocellular carcinoma (HCC). We investigated the influence of previous HBV infection on the incidence of HCC in patients with hepatitis C virus (HCV) infection who achieved eradication of HCV, that is sustained virologic response (SVR). Both HBcAb and HBsAb were measured in a total of 1214 patients with HCV infection who had not been coinfected with HBV, as determined by both negative HBs antigen and HBV DNA, and in whom SVR was confirmed. Patients were followed up for a median of 5.7 years, and the incidence of post-SVR HCC was compared based on HBcAb and/or HBsAb. In both univariate and multivariate analyses, the incidence of post-SVR HCC did not differ based on the presence of HBcAb or HBsAb. In conclusion, previous HBV infection has no impact on the incidence of HCC in patients with HCV after SVR.
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Affiliation(s)
- Hidenori Toyoda
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Yuichi Koshiyama
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Satoshi Yasuda
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Takashi Kumada
- Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - Kazuaki Chayama
- Hiroshima Institute of Life Sciences, Hiroshima, Japan
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Collaborative Research Laboratory of Medical Innovation, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
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Sugiyama A, Takafuta T, Sato T, Kitahara Y, Yoshinaga Y, Abe K, Chanroth C, Ataa AG, Phyo Z, Kurisu A, Ko K, Akita T, Kishita E, Kuwabara M, Tanaka J. Natural course of post-COVID symptoms in adults and children. Sci Rep 2024; 14:3884. [PMID: 38365846 PMCID: PMC10873293 DOI: 10.1038/s41598-024-54397-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/12/2024] [Indexed: 02/18/2024] Open
Abstract
More than 200 million COVID-19 survivors have lasting symptoms after recovering, but the duration and related risk factors remain uncertain. This study focused on all 6551 patients diagnosed with COVID-19 at a medical institution in Hiroshima from March 2020 to July 2022. In November 2022, a questionnaire survey was conducted regarding post-COVID symptoms and their duration. The prevalence and duration of post-COVID symptoms were illustrated using the Kaplan-Meier method. Risk factors for symptoms lasting over 3 months and interfering with daily life were assessed via multivariate logistic regression. A total of 2421 survivors responded: 1391 adults, 1030 children, median age 34 years (IQR 9-55), 51·2% male, 36·7% hospitalized, median time from infection to the survey was 295 days (IQR 201-538). Upon their initial recovery, the prevalence of post-COVID symptoms was 78·4% in adults and 34·6% in children. Three months later, the rates were 47·6% and 10·8%. After over one year, they were 31·0% and 6·8%. Regarding symptoms interfere with daily life, 304 people (12.6%) experienced symptoms lasting for over three months, with independent risk factors including age, being female, diabetes mellitus, infection during the Delta period, and current smoking. There was no significant association between vaccination history and post-COVID symptoms.
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Affiliation(s)
- Aya Sugiyama
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Toshiro Takafuta
- Hiroshima City Funairi Citizens Hospital, 14-11, Funairisaiwaicho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan
| | - Tomoki Sato
- Hiroshima City Funairi Citizens Hospital, 14-11, Funairisaiwaicho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan
| | - Yoshihiro Kitahara
- Hiroshima City Funairi Citizens Hospital, 14-11, Funairisaiwaicho, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-0844, Japan
| | - Yayoi Yoshinaga
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Kanon Abe
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Chhoung Chanroth
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Akuffo Golda Ataa
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Zayar Phyo
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Akemi Kurisu
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Ko Ko
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan
| | - Eisaku Kishita
- Ministry of Health, Labor and Welfare Health Insurance Bureau Medical Economics Division, 1-2-2, Kasumigaseki, Chiyoda-ku, Tokyo-to, Tokyo, 100-8916, Japan
| | - Masao Kuwabara
- Hiroshima Prefecture Center for Disease Control and Prevention, 10-52, Motomachi, Naka-ku, Hiroshima-shi, Hiroshima-ken, 730-8511, Japan
| | - Junko Tanaka
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi, Hiroshima-ken, 734-8551, Japan.
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Kurisu A, Sugiyama A, Akita T, Takumi I, Yamamoto H, Iida K, Tanaka J. Incidence and Prevalence of Epilepsy in Japan: A Retrospective Analysis of Insurance Claims Data of 9,864,278 Insured Persons. J Epidemiol 2024; 34:70-75. [PMID: 36843107 PMCID: PMC10751190 DOI: 10.2188/jea.je20220316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/30/2023] [Indexed: 02/27/2023] Open
Abstract
INTRODUCTION The burden of epilepsy is thought to be high but is difficult to measure. Very few studies in Japan have attempted to estimate prevalence and incidence rates of epilepsy in Japan. METHODS This retrospective cohort study used commercially collected nationwide insurance claims data from a cohort of 10 million persons between 2012 and 2019 among those aged 0 to 74 years. Using the claims data, cases were identified, and incidence and prevalence rates were estimated. RESULTS A total of 9,864,278 persons were included. The average age was 34.5 (standard deviation, 18.5) years. A total of 77,312 persons were diagnosed with epilepsy over the 8-year observation period, with a prevalence rate of 6.0 per 1,000 persons with almost no difference by gender. The highest rates were seen among those aged 70-74 years; prevalence rates tended to rise with calendar year (5.4/1,000 in 2012 and 6.0/1,000 in 2019). The incidence rate of epilepsy was 72.1 per 100,000 person-years with slightly higher rates seen among females. Incidence rates were highest at ages less than 12 months (199.8/100,000 person-years), followed by the eldest age group (70-74 years, 179.4/100,000 person-years). CONCLUSION Understanding the magnitude of disease burden is the basis of determining health policies. In this study, the prevalence and incidence of epilepsy in Japan was shown based on the analysis results of a large-scale general population insurance claims data covering all over Japan.
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Affiliation(s)
- Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center For Epidemiological & Mega-data Analysis of New Research Area, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center For Epidemiological & Mega-data Analysis of New Research Area, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center For Epidemiological & Mega-data Analysis of New Research Area, Hiroshima University, Hiroshima, Japan
| | - Ichiro Takumi
- Department of Neurosurgery, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Hitoshi Yamamoto
- Department of Pediatrics, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Koji Iida
- Department of Neurosurgery, Hiroshima University Hospital, Hiroshima, Japan
- Epilepsy Center, Hiroshima University Hospital, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center For Epidemiological & Mega-data Analysis of New Research Area, Hiroshima University, Hiroshima, Japan
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Hussain MRA, Ali M, Sugiyama A, Hiebert L, Rahman MA, Azam G, Ouoba S, E B, Ko K, Akita T, Ward JW, Tanaka J. The impact of COVID-19 on hepatitis B and C virus prevention, diagnosis, and treatment in Bangladesh compared with Japan and the global perspective. BMC Health Serv Res 2023; 23:1137. [PMID: 37872525 PMCID: PMC10594740 DOI: 10.1186/s12913-023-10138-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 10/12/2023] [Indexed: 10/25/2023] Open
Abstract
AIM This study aimed to assess the effect of COVID-19 on hepatitis-related services in Bangladesh and compared the situation with same study conducted in Japan and globally. METHODS We conducted an online cross-sectional questionnaire survey among the clinicians of four societies associated with liver disease in Bangladesh from October to December 2022. The questionnaire included the same questions as a survey conducted in Japan and globally. RESULTS A total of 83 clinicians from 8 divisions in Bangladesh participated; 66.3% were heads of departments/institutions. Except for HCV treatment initiation, more than 30% of clinicians reported a 76-99% decline in all services. Compared to Japan and the global survey, there was a significantly higher decline in all HBV and HCV services in Bangladesh. To resume services back to pre-COVID-19 levels, Patient anxiety and fear (Bangladesh Survey: 80.7% vs Japan Survey: 67.4% vs Global Survey: 37.9%, p < 0.0001), loss of space due to COVID-19 (Bangladesh Survey: 63.9% vs Japan Survey: 34.7% vs Global Survey: 19.4%, p < 0.0001) were the main challenges. As part of the mitigation strategy, usage of telemedicine (Bangladesh Survey: 83.1% vs. Japan Survey: 67.3% vs Global Survey: 78.6% p < 0.0001), COVID-19 benefits, such as increased laboratory testing platforms (Bangladesh Survey: 77.1% vs Japan Survey: 17.9% vs Global Survey: 41.8%, p < 0.0001) was reported significantly higher in Bangladesh than in Japan and global survey. CONCLUSION All the services-related to HBV and HCV were highly affected during greatest impact month of COVID-19 in Bangladesh and the decline level was higher than Japan and global survey. Repeated countermeasures of COVID-19 and constrained healthcare-system were the probable reasons in Bangladesh. Positive impact resulting from COVID-19 countermeasures should be utilized in the national hepatitis program in Bangladesh.
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Affiliation(s)
- Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan
| | - Mohammad Ali
- Department of Hepato-Biliary-Pancreatic Surgery & Liver Transplant, BIRDEM General Hospital, Dhaka, Bangladesh
- National Liver Foundation of Bangladesh, Dhaka, Bangladesh
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan
| | - Lindsey Hiebert
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan
- Coalition for Global Hepatitis Elimination, The Task Force for Global Health, Decatur, GA, USA
| | - M Anisur Rahman
- Department of Gastrointestinal Hepatobiliary & Pancreatic Disorders (GHPD), BIRDEM General Hospital, Dhaka, Bangladesh
| | - Golam Azam
- Department of Gastrointestinal Hepatobiliary & Pancreatic Disorders (GHPD), BIRDEM General Hospital, Dhaka, Bangladesh
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de La Santé (IRSS), Nanoro, Burkina Faso
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan
- National Payment Certification, National Social Protection Council, Ministry of Economic and Finance, Phnom Penh, Cambodia
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan
| | - John W Ward
- Coalition for Global Hepatitis Elimination, The Task Force for Global Health, Decatur, GA, USA
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima-Shi, 734-8551, Japan.
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Kuroda H, Oguri T, Kamiyama N, Toyoda H, Yasuda S, Imajo K, Suzuki Y, Sugimoto K, Akita T, Tanaka J, Yasui Y, Kurosaki M, Izumi N, Nakajima A, Fujiwara Y, Abe T, Kakisaka K, Matsumoto T, Kumada T. Multivariable Quantitative US Parameters for Assessing Hepatic Steatosis. Radiology 2023; 309:e230341. [PMID: 37787670 DOI: 10.1148/radiol.230341] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Background Because of the global increase in the incidence of nonalcoholic fatty liver disease, the development of noninvasive, widely available, and highly accurate methods for assessing hepatic steatosis is necessary. Purpose To evaluate the performance of models with different combinations of quantitative US parameters for their ability to predict at least 5% steatosis in patients with chronic liver disease (CLD) as defined using MRI proton density fat fraction (PDFF). Materials and Methods Patients with CLD were enrolled in this prospective multicenter study between February 2020 and April 2021. Integrated backscatter coefficient (IBSC), signal-to-noise ratio (SNR), and US-guided attenuation parameter (UGAP) were measured in all participants. Participant MRI PDFF value was used to define at least 5% steatosis. Four models based on different combinations of US parameters were created: model 1 (UGAP alone), model 2 (UGAP with IBSC), model 3 (UGAP with SNR), and model 4 (UGAP with IBSC and SNR). Diagnostic performance of all models was assessed using area under the receiver operating characteristic curve (AUC). The model was internally validated using 1000 bootstrap samples. Results A total of 582 participants were included in this study (median age, 64 years; IQR, 52-72 years; 274 female participants). There were 364 participants in the steatosis group and 218 in the nonsteatosis group. The AUC values for steatosis diagnosis in models 1-4 were 0.92, 0.93, 0.95, and 0.96, respectively. The C-indexes of models adjusted by the bootstrap method were 0.92, 0.93, 0.95, and 0.96, respectively. Compared with other models, models 3 and 4 demonstrated improved discrimination of at least 5% steatosis (P < .01). Conclusion A model built using the quantitative US parameters UGAP, IBSC, and SNR could accurately discriminate at least 5% steatosis in patients with CLD. © RSNA, 2023 Supplemental material is available for this article. See also the editorial by Han in this issue.
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Affiliation(s)
- Hidekatsu Kuroda
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Takuma Oguri
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Naohisa Kamiyama
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Hidenori Toyoda
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Satoshi Yasuda
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Kento Imajo
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Yasuaki Suzuki
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Katsutoshi Sugimoto
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Tomoyuki Akita
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Junko Tanaka
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Yutaka Yasui
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Masayuki Kurosaki
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Namiki Izumi
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Atsushi Nakajima
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Yudai Fujiwara
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Tamami Abe
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Keisuke Kakisaka
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Takayuki Matsumoto
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Takashi Kumada
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
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10
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Ko K, Takahashi K, Ito N, Sugiyama A, Nagashima S, Miwata K, Kitahara Y, Okimoto M, Ouoba S, Akuffo GA, E B, Akita T, Takafuta T, Tanaka J. Despite low viral titer in saliva samples, Sanger-based SARS-CoV-2 spike gene sequencing is highly applicable for the variant identification. BMC Med Genomics 2023; 16:199. [PMID: 37620887 PMCID: PMC10463848 DOI: 10.1186/s12920-023-01633-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND This study aimed to compare the performance of Sanger-based SARS-CoV-2 spike gene sequencing and Next Generation Sequencing (NGS)-based full-genome sequencing for variant identification in saliva samples with low viral titer. METHODS Using 241 stocked saliva samples collected from confirmed COVID-19 patients between November 2020 and March 2022 in Hiroshima, SARS-CoV-2 spike gene sequencing (nt22735-nt23532) was performed by nested RT-PCR and Sanger platform using in-house primers. The same samples underwent full-genome sequencing by NGS using Illumina NextSeq2000. RESULTS Among 241 samples, 147 were amplified by both the Sanger and the Illumina NextSeq2000 NGS, 86 by Sanger only, and 8 were not amplified at all. The overall amplification rates of Illumina NextSeq2000 NGS and Sanger were 61% and 96.7%, respectively. At low viral titer (< 103 copies/mL), Illumina NextSeq2000 NGS provided 19.2% amplification, while Sanger was 89.7% (p < 0.0001). Both platforms identified 38 wild type, 54 Alpha variants, 84 Delta variants, and 57 Omicron variants. CONCLUSIONS Our study provided evidence to expand the capacity of Sanger-based SARS-CoV-2 spike gene sequencing for variants identification over full-genome by Illumina NextSeq2000 NGS for mass screening. Therefore, the feasible and simple Sanger-based SARS-CoV-2 spike gene sequencing is practical for the initial variants screening, which might reduce the gap between the rapid evolution of SARS-CoV-2 and its molecular surveillance.
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Affiliation(s)
- Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Noriaki Ito
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kei Miwata
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | | | - Mafumi Okimoto
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de La Santé (IRSS), Nanoro, Burkina Faso
| | - Golda Ataa Akuffo
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
- Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | | | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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11
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Lawal-Ayinde BM, Morita T, Oda K, Nazmul T, Kurose M, Nomura T, Yamamoto A, Higashiura A, Akita T, Tanaka J, Horiuchi I, Goda H, Sakaguchi T. Virus purification highlights the high susceptibility of SARS-CoV-2 to a chlorine-based disinfectant, chlorous acid. PLoS One 2023; 18:e0288634. [PMID: 37450488 PMCID: PMC10348549 DOI: 10.1371/journal.pone.0288634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 07/01/2023] [Indexed: 07/18/2023] Open
Abstract
Chlorous acid water (HClO2) is known for its antimicrobial activity. In this study, we attempted to accurately assess the ability of chlorous acid water to inactivate SARS-CoV-2. When using cell culture supernatants of infected cells as the test virus, the 99% inactivation concentration (IC99) for the SARS-CoV-2 D614G variant, as well as the Delta and Omicron variants, was approximately 10ppm of free chlorine concentration with a reaction time of 10 minutes. On the other hand, in experiments using a more purified virus, the IC99 of chlorous acid water was 0.41-0.74ppm with a reaction time of 1 minute, showing a strong inactivation capacity over 200 times. With sodium hypochlorite water, the IC99 was 0.54ppm, confirming that these chlorine compounds have a potent inactivation effect against SARS-CoV-2. However, it became clear that when using cell culture supernatants of infected cells as the test virus, the effect is masked by impurities such as amino acids contained therein. Also, when proteins (0.5% polypeptone, or 0.3% BSA + 0.3% sheep red blood cells, or 5% FBS) were added to the purified virus, the IC99 values became high, ranging from 5.3 to 76ppm with a reaction time of 10 minutes, significantly reducing the effect. However, considering that the usual usage concentration is 200ppm, it was shown that chlorous acid water can still exert sufficient disinfection effects even in the presence of proteins. Further research is needed to confirm the practical applications and effects of chlorous acid water, but it has the potential to be an important tool for preventing the spread of SARS-CoV-2.
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Affiliation(s)
| | - Tomoko Morita
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kosuke Oda
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tanuza Nazmul
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Miuko Kurose
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Toshihito Nomura
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan
| | - Akima Yamamoto
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Akifumi Higashiura
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | | | - Takemasa Sakaguchi
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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12
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Imada H, Akita T, Sugiyama A, Tanaka J. Trend of blood donors entering the coronavirus pandemic era and challenges: Age-period-cohort analysis using 75.5 million all blood donations data during 2006-2020 in Japan. Transfusion 2023. [PMID: 37158239 DOI: 10.1111/trf.17387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND In Japan, "Blood Donation Promotion 2025," a blood donation target, was established based on a predicted blood donation rate of 5.7% in 2025, which was calculated by the Blood Donation Promotion Study Group (BD research group) of the Ministry of Health, Labor and Welfare using nationwide blood donation data through 2018. However, COVID-19 since 2020 may affect the blood donation rate in Japan. METHOD Data from 75.5 million blood donations from 2006 to 2020 was used. The age-period-cohort model (APC model) was applied to estimate age, period, and birth cohort factors on blood donation rate and to predict the age-specific blood donation rates from 2021 to 2035. RESULTS The APC model was highly reproducible for blood donation rates (modified R2 = 0.99). The blood donation rate in 2020 was 6.0% (5.04 million), an increase compared to 2019. Comparing this study with the BD research group, the predicted blood donation rates in 2025 for those 16-19 years old and in 20s are lower (4.8% vs. 5.2% and 5.3% vs. 5.5%) but those among 50s and 60s are higher (7.9% vs. 7.5% and 4.2% vs. 3.9%, respectively). DISCUSSION The number of blood donations in 2020 increased despite COVID-19 and it proved that the blood donation promotion was effective. The different age-specific blood donation rates between our study and the report of BD research group infers the effect of COVID-19 on blood donation were differed by age and suggested the need for different approaches to blood donation promotion by generation.
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Affiliation(s)
- Hirohito Imada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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13
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E B, Ko K, Kim R, Nagashima S, Ouoba S, Hussain MRA, Sato T, Chuon C, Abe K, Sugiyama A, Takahashi K, Akita T, Tung R, Ork V, Hossain MS, Saphonn V, Tanaka J. Residual risk of mother-to-child transmission of HBV despite timely Hepatitis B vaccination: a major challenge to eliminate hepatitis B infection in Cambodia. BMC Infect Dis 2023; 23:261. [PMID: 37101167 PMCID: PMC10131410 DOI: 10.1186/s12879-023-08249-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/13/2023] [Indexed: 04/28/2023] Open
Abstract
BACKGROUND In countries with intermediate or high hepatitis B virus (HBV) endemicity, mother-to-child transmission (MTCT) represents the main route of chronic HBV infection. There is a paucity of information on HBV MTCT in Cambodia. This study aimed to investigate the prevalence of HBV infection among pregnant women and its MTCT rate in Siem Reap, Cambodia. METHODS This longitudinal study included two parts, study-1 to screen HBsAg among pregnant women and study-2 to follow up babies of all HBsAg-positive and one-fourth of HBsAg-negative mothers at their delivery and six-month post-partum. Serum or dried blood spot (DBS) samples were collected to examine HBV sero-markers by chemiluminescent enzyme immunoassay (CLEIA), and molecular analyses were performed on HBsAg-positive samples. Structured questionnaires and medical records were used to examine the risk factors for HBV infection. MTCT rate was calculated by HBsAg positivity of 6-month-old babies born to HBsAg-positive mothers and ascertained by the homology of HBV genomes in mother-child pair at 6-month-old. RESULTS A total of 1,565 pregnant women were screened, and HBsAg prevalence was 4.28% (67/1565). HBeAg positivity was 41.8% and was significantly associated with high viral load (p < 0.0001). Excluding subjects who dropped out due to restrictions during COVID-19, one out of 35 babies born to HBsAg-positive mothers tested positive for HBsAg at 6 months of age, despite receiving timely HepB birth dose and HBIG, followed by 3 doses of HepB vaccine. Hence the MTCT rate was 2.86%. The mother of the infected baby was positive for HBeAg and had a high HBV viral load (1.2 × 109 copies/mL). HBV genome analysis showed 100% homology between the mother and the child. CONCLUSIONS Our findings illustrate the intermediate endemicity of HBV infection among pregnant women in Siem Reap, Cambodia. Despite full HepB vaccination, a residual risk of HBV MTCT was observed. This finding supports the recently updated guidelines for the prevention of HBV MTCT in 2021, which integrated screening and antiviral prophylaxis for pregnant women at risk of HBV MTCT. Furthermore, we strongly recommend the urgent implementation of these guidelines nationwide to effectively combat HBV in Cambodia.
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Affiliation(s)
- Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
- Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Rattana Kim
- National Maternal and Child Health Center (NMCHC), Ministry of Health, Phnom Penh, Cambodia
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Sciences de La Santé (IRSS), Nanoro, Burkina Faso
| | - Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Tomoki Sato
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Channarena Chuon
- Doctor Alliance of Union of Youth Federation of Cambodia (DAUYFC), Phnom Penh, Cambodia
| | - Kanon Abe
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | | | - Vichit Ork
- National Immunization Program (NIP), Ministry of Health, Phnom Penh, Cambodia
| | - Md Shafiqul Hossain
- Expanded Program On Immunization, World Health Organization Country Office, Phnom Penh, Cambodia
| | | | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan.
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14
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Yamasaki F, Fudaba H, Asano K, Sasayama T, Natsumeda M, Shimabukuro T, Taguchi K, Koizumi S, Nakayama N, Fujii K, Nishibuchi I, Sugiyama K, Yoshida K, Yonezawa U, Yasutomo M, Kawasaki Y, Kakuta K, Katayama K, Tanaka K, Nagashima H, Tsukamoto Y, Ideguchi M, Nishizaki T, Kurozumi K, Hosoya T, Akita T, Kambe A. Multidrug chemotherapy, whole-brain radiation and cytarabine therapy for primary central nervous system lymphoma in elderly patients with dose modification based on geriatric assessment: study protocol for a phase II, multicentre, non-randomised study. BMJ Open 2023; 13:e071350. [PMID: 37094899 PMCID: PMC10151848 DOI: 10.1136/bmjopen-2022-071350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
INTRODUCTION Multidrug chemoimmunotherapy with rituximab, high-dose methotrexate, procarbazine and vincristine (R-MPV) is a standard therapy for younger patients with primary central nervous system lymphoma (PCNSL); however, prospective data regarding its use in elderly patients are lacking. This multi-institutional, non-randomised, phase II trial will assess the efficacy and safety of R-MPV and high-dose cytarabine (HD-AraC) for geriatric patients with newly diagnosed PCNSL. METHODS AND ANALYSIS Forty-five elderly patients will be included. If R-MPV does not achieve complete response, the patients will undergo reduced-dose, whole-brain radiotherapy comprising 23.4 Gy/13 fractions, followed by local boost radiotherapy comprising 21.6 Gy/12 fractions. After achieving complete response using R-MPV with or without radiotherapy, the patients will undergo two courses of HD-AraC. All patients will undergo baseline geriatric 8 (G8) assessment before HD-AraC and after three, five and seven R-MPV courses. Patients with screening scores of ≥14 points that decrease to <14 points during subsequent treatment, or those with screening scores <14 points that decrease from the baseline during subsequent treatment are considered unfit for R-MPV/HD-AraC. The primary endpoint is overall survival, and the secondary endpoints are progression-free survival, treatment failure-free survival and frequency of adverse events. The results will guide a later phase III trial and provide information about the utility of a geriatric assessment for defining chemotherapy ineligibility. ETHICS AND DISSEMINATION This study complies with the latest Declaration of Helsinki. Written informed consent will be obtained. All participants can quit the study without penalty or impact on treatment. The protocol for the study, statistical analysis plan and informed consent form have been approved by the Certified Review Board at Hiroshima University (CRB6180006) (approval number: CRB2018-0011). The study is ongoing within nine tertiary and two secondary hospitals in Japan. The findings of this trial will be disseminated through national and international presentations and peer-reviewed publications. TRIAL REGISTRATION jRCTs061180093.
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Affiliation(s)
- Fumiyuki Yamasaki
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hirotaka Fudaba
- Department of Neurosurgery, Oita University Faculty of Medicine, Yufu, Japan
| | - Kenichiro Asano
- Department of Neurosurgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takashi Sasayama
- Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Manabu Natsumeda
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | | | - Kotaro Taguchi
- Department of Radiology, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan
| | - Shinichiro Koizumi
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Noriyuki Nakayama
- Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kentaro Fujii
- Department of Neurological Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ikuno Nishibuchi
- Department of Radiation Oncology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuhiko Sugiyama
- Department of Clinical Oncology and Neuro-Oncology Program, Hiroshima University Hospital, Hiroshima, Japan
| | - Kenji Yoshida
- Department of Radiation Oncology, Tottori University Hospital, Yonago, Japan
| | - Ushio Yonezawa
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Momii Yasutomo
- Department of Neurosurgery, Oita University Faculty of Medicine, Yufu, Japan
| | - Yukari Kawasaki
- Department of Neurosurgery, Oita University Faculty of Medicine, Yufu, Japan
| | - Kiyohide Kakuta
- Department of Neurosurgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kosuke Katayama
- Department of Neurosurgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kazuhiro Tanaka
- Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hiroaki Nagashima
- Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoshihiro Tsukamoto
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata, Japan
| | - Makoto Ideguchi
- Department of Neurosurgery, Ube Industries Central Hospital, Ube, Japan
| | | | - Kazuhiko Kurozumi
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tomohiro Hosoya
- Department of Brain and Neurosciences, Division of Neurosurgery, Tottori University, Yonago, Japan
| | - Tomoyuki Akita
- Department of Biostatistics, Clinical Research Center in Hiroshima, Hiroshima University Hospital, Hiroshima, Japan
| | - Atsushi Kambe
- Department of Brain and Neurosciences, Division of Neurosurgery, Tottori University, Yonago, Japan
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15
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Ouoba S, Ko K, Lingani M, Nagashima S, Guingané AN, Bunthen E, Hussain MRA, Sugiyama A, Akita T, Ohisa M, Sanou MA, Traore O, Nassa JW, Sanou M, Takahashi K, Tinto H, Tanaka J. Intermediate hepatitis B virus infection prevalence among 1622 pregnant women in rural Burkina Faso and implications for mother-to-child transmission. Sci Rep 2023; 13:6115. [PMID: 37059812 PMCID: PMC10103033 DOI: 10.1038/s41598-023-32766-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 04/01/2023] [Indexed: 04/16/2023] Open
Abstract
In highly endemic countries for hepatitis B virus (HBV) infection, childhood infection, including mother-to-child transmission (MTCT), represents the primary transmission route. High maternal DNA level (viral load ≥ 200,000 IU/mL) is a significant factor for MTCT. We investigated the prevalence of HBsAg, HBeAg, and high HBV DNA among pregnant women in three hospitals in Burkina Faso and assessed the performance of HBeAg to predict high viral load. Consenting pregnant women were interviewed on their sociodemographic characteristics and tested for HBsAg by a rapid diagnostic test, and dried blood spot (DBS) samples were collected for laboratory analyses. Of the 1622 participants, HBsAg prevalence was 6.5% (95% CI, 5.4-7.8%). Among 102 HBsAg-positive pregnant women in DBS samples, HBeAg was positive in 22.6% (95% CI, 14.9-31.9%), and viral load was quantified in 94 cases, with 19.1% having HBV DNA ≥ 200,000 IU/mL. HBV genotypes were identified in 63 samples and predominant genotypes were E (58.7%) and A (36.5%). The sensitivity of HBeAg by using DBS samples to identify high viral load in the 94 cases was 55.6%, and the specificity was 86.8%. These findings highlight the need to implement routine HBV screening and effective MTCT risk assessment for all pregnant women in Burkina Faso to enable early interventions that can effectively reduce MTCT.
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Affiliation(s)
- Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Moussa Lingani
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Alice N Guingané
- Unite de Formation Et de Recherche en Sciences de la Sante, Universite Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
| | - E Bunthen
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
- Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Masayuki Ohisa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Moussa Abdel Sanou
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Ousmane Traore
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Job Wilfried Nassa
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Maimouna Sanou
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan
| | - Halidou Tinto
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-Ku, Hiroshima, 734-8551, Japan.
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16
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Imada H, Akita T, Sugiyama A, Tanaka J. Correction to: Impact of robot‑assisted surgery appearance on reduction of annual blood transfusion cases in Japan: application of meta‑analysis and NDB open data. J Robot Surg 2023; 17:709. [PMID: 36913059 DOI: 10.1007/s11701-023-01562-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Affiliation(s)
- Hirohito Imada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
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17
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Sugiyama A, Kurisu A, Nagashima S, Hando K, Saipova K, Akhmedova S, Abe K, Imada H, Hussain MRA, Ouoba S, E B, Ko K, Akita T, Yamazaki S, Yokozaki M, Tanaka J. Author Correction: Seroepidemiological study of factors affecting anti-spike IgG antibody titers after a two-dose mRNA COVID-19 vaccination in 3744 healthy Japanese volunteers. Sci Rep 2023; 13:1906. [PMID: 36732557 PMCID: PMC9893206 DOI: 10.1038/s41598-023-28884-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Aya Sugiyama
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Akemi Kurisu
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Shintaro Nagashima
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Kiyomi Hando
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Khilola Saipova
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,grid.444564.30000 0004 0402 7972Department of Clinical Radiology and Oncology, Andijan State Medical Institute, Andijan, Uzbekistan
| | - Sayyora Akhmedova
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,Department of Cardiorheumatology, Republican Specialized Scientific-Practical Medical Center of Pediatrics, Tashkent, Uzbekistan
| | - Kanon Abe
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Hirohito Imada
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Md Razeen Ashraf Hussain
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Serge Ouoba
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,grid.457337.10000 0004 0564 0509Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de La Santé (IRSS), Nanoro, Burkina Faso
| | - Bunthen E
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,grid.415732.6Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Ko Ko
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Tomoyuki Akita
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Shinichi Yamazaki
- grid.470097.d0000 0004 0618 7953Division of Clinical Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Michiya Yokozaki
- grid.470097.d0000 0004 0618 7953Division of Clinical Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Junko Tanaka
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
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18
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Omori K, Shigemoto N, Kitagawa H, Nomura T, Kaiki Y, Miyaji K, Akita T, Kobayashi T, Hattori M, Hasunuma N, Tanaka J, Ohge H. Virtual reality as a learning tool for improving infection control procedures. Am J Infect Control 2023; 51:129-134. [PMID: 35659561 DOI: 10.1016/j.ajic.2022.05.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/27/2022] [Accepted: 05/27/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND Hand hygiene and donning personal protective equipment (PPE) are essential techniques for infection control; however, low compliance is an issue. The effectiveness of virtual reality (VR) in learning infection control procedures is unknown. METHODS To verify the effectiveness of VR, medical students were categorized into VR or lecture groups (n=21 each). Each group was given the same curricular content; one group received the training through VR learning using a fully-immersive 360-degree video and the other was conventional lecture-style learning. Before and after the training, they were evaluated for the implementation of hand hygiene and PPE using an Objective Structured Clinical Examination method. Post-test questionnaires were administered. RESULTS The scores for hand hygiene, donning PPE, and the total score increased after learning in both groups. There was no difference between the pre-test total scores of the two groups (7 [5-9] vs 6 [5-7.5], P=.352); however, the VR group had significantly higher post-test total scores than the lecture group (12 [9.5-12] vs 9 [8-12], P=.024). More students in the VR group responded that they enjoyed the training and would like to use the same learning method next time. CONCLUSIONS VR can be a useful tool for learning and practicing appropriate infection control procedures.
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Affiliation(s)
- Keitaro Omori
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan.
| | - Norifumi Shigemoto
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan; Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan; Translational Research Center, Hiroshima University, Hiroshima, Japan
| | - Hiroki Kitagawa
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan; Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Toshihito Nomura
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan
| | - Yuki Kaiki
- Department of Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kentaro Miyaji
- School of medicine, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoki Kobayashi
- Center for Medical Education Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Minoru Hattori
- Center for Medical Education Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Naoko Hasunuma
- Center for Medical Education Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroki Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan
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19
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Ichikawa H, Yasuda E, Kumada T, Takeshima K, Ogawa S, Tsunekawa A, Goto T, Nakaya K, Akita T, Tanaka J. Intra-individual comparison of liver stiffness measurements by magnetic resonance elastography and two-dimensional shear-wave elastography in 888 patients. Ultrasonography 2023; 42:65-77. [PMID: 36366945 PMCID: PMC9816707 DOI: 10.14366/usg.22052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/21/2022] [Indexed: 11/13/2022] Open
Abstract
PURPOSE Quantitative elastography methods, such as ultrasound two-dimensional shear-wave elastography (2D-SWE) and magnetic resonance elastography (MRE), are used to diagnose liver fibrosis. The present study compared liver stiffness determined by 2D-SWE and MRE within individuals and analyzed the degree of agreement between the two techniques. METHODS In total, 888 patients who underwent 2D-SWE and MRE were analyzed. Bland-Altman analysis was performed after both types of measurements were log-transformed to a normal distribution and converted to a common set of units using linear regression analysis for differing scales. The expected limit of agreement (LoA) was defined as the square root of the sum of the squares of 2D-SWE and MRE precision. The percentage difference was expressed as (2D-SWEMRE)/ mean of the two methods×100. RESULTS A Bland-Altman plot showed that the bias and upper and lower LoAs (ULoA and LLoA) were 0.0002 (95% confidence interval [CI], -0.0057 to 0.0061), 0.1747 (95% CI, 0.1646 to 0.1847), and -0.1743 (95% CI, -0.1843 to -0.1642), respectively. In terms of percentage difference, the mean, ULoA, and LLoA were -0.5944%, 19.8950%, and -21.0838%, respectively. The calculated expected LoA was 17.1178% (95% CI, 16.6353% to 17.6002%), and 789 of 888 patients (88.9%) had a percentage difference within the expected LoA. The intraclass correlation coefficient of the two methods indicated an almost perfect correlation (0.8231; 95% CI, 0.8006 to 0.8432; P<0.001). CONCLUSION Bland-Altman analysis demonstrated that 2D-SWE and MRE were interchangeable within a clinically acceptable range.
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Affiliation(s)
- Hideo Ichikawa
- Department of Medical Imaging, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Eisuke Yasuda
- Department of Medical Imaging, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan,Correspondence to: Eisuke Yasuda, PhD, Department of Medical Imaging, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Mie 510- 0293, Japan Tel. +81-059-383-8991 Fax. +81-059-383-9666 E-mail:
| | - Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - Kenji Takeshima
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Sadanobu Ogawa
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Akikazu Tsunekawa
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Tatsuya Goto
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Koji Nakaya
- Department of Medical Imaging, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
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20
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Ishii S, Sugiyama A, Ito N, Miwata K, Kitahara Y, Okimoto M, Kurisu A, Abe K, Imada H, Akita T, Kubo T, Nagasawa A, Nakanishi T, Takafuta T, Kuwabara M, Tanaka J. The role of discrimination in the relation between COVID-19 sequelae, psychological distress, and work impairment in COVID-19 survivors. Sci Rep 2022; 12:22218. [PMID: 36564428 PMCID: PMC9782263 DOI: 10.1038/s41598-022-26332-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Perceived discrimination and work impairment are commonly observed in COVID-19 survivors, but their relationship has not been well understood. We aimed to evaluate the role of discrimination in the development of psychological distress and work impairment in COVID-19 survivors. From April 2020 to November 2021, 309 patients were recruited at two designated COVID-19 hospitals in Japan. Participants completed a standardized questionnaire including COVID-19 sequelae, psychological distress, impairments in work performance and perceived discrimination. The majority of participants (62.5%) experienced one or more COVID-19 sequelae. Psychological distress was observed in 36.9% and work impairment in 37.9%. In multivariate logistic regression analyses, COVID-19 sequelae and discrimination were associated with both psychological distress and work impairment. Mediation analysis demonstrated that the direct effect of sequelae on work impairment was non-significant after accounting for psychological distress, suggesting that the effect of sequelae on work impairment was mainly mediated through psychological distress. These findings were replicated in a subgroup analysis limited to patients with mild COVID-19. We conclude that discrimination plays an important role in the development of psychological distress and work impairment, and that both discrimination and psychological distress should be targets of intervention in COVID-19 survivors.
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Affiliation(s)
- Shinya Ishii
- Department of Medicine for Integrated Approach to Social Inclusion, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Noriaki Ito
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Kei Miwata
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | | | - Mafumi Okimoto
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kanon Abe
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Hirohito Imada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | | | | | - Masao Kuwabara
- Hiroshima Prefectural Center for Disease Control and Prevention, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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21
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Nagaoki Y, Sugiyama A, Mino M, Kodama H, Abe K, Imada H, Ouoba S, E B, Ko K, Akita T, Sako T, Kumada T, Chayama K, Tanaka J. Prevalence of fatty liver and advanced fibrosis by ultrasonography and FibroScan in a general population random sample. Hepatol Res 2022; 52:908-918. [PMID: 35932166 DOI: 10.1111/hepr.13821] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/15/2022] [Accepted: 07/21/2022] [Indexed: 01/25/2023]
Abstract
AIM Fatty liver is the most common liver disease. This study examined fatty liver and advanced fibrosis prevalence in a random sample of the Japanese general population. METHODS A total of 6000 people randomly selected from two cities in Hiroshima Prefecture were invited to participate in this cross-sectional study originally carried out for hepatitis virus screening. Ultrasonography and FibroScan (controlled attenuation parameter [CAP] and liver stiffness measurement [LSM]) were provided as additional tests. RESULTS Of 6000 invited individuals, 1043 participated in hepatitis virus screening, of which 488 randomly selected individuals (median age, 56 years; interquartile range, 45-68 years; male participants, 49.8%) underwent ultrasonography, CAP, and LSM. Ultrasonography showed fatty liver in 24.6% and mild fatty liver in 32.8%. Controlled attenuation parameter showed severe steatosis in 27.5%, moderate steatosis in 12.5%, and mild steatosis in 11.1%. Overall, 62.1% were diagnosed with fatty liver based on ultrasonography or CAP. Nonalcoholic fatty liver disease (NAFLD) prevalence was 50.6%. Liver stiffness measurement found cirrhosis in 1.0% and severe fibrosis in 1.8%. Multivariate analysis of risk factors associated with ≥F2 or higher liver fibrosis showed that age ≥60 years and above (adjusted odds ratio [AOR], 3.2; 95% confidence interval [CI], 1.5-6.9; p = 0.0031), hepatitis C virus antibody positivity (AOR, 8.4; 95% CI, 1.0-68.4; p = 0.0467), and fatty liver (AOR, 2.3; 95% CI, 1.1-6.2; p = 0.0317) are independent risk factors. CONCLUSIONS In the general population, 62.1% had fatty liver, and NAFLD prevalence was twice as high as previously reported. Screening that is noninvasive, low-cost, and does not require special techniques or equipment is needed to detect advanced liver fibrosis.
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Affiliation(s)
- Yuko Nagaoki
- Department of Gastroenterology, Mazda Hospital, Mazda Motor Corporation, Hiroshima, Japan.,Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Megumi Mino
- Health and Welfare Division, Hiroshima Prefectural Government Research Center, Hiroshima, Japan
| | - Hiroomi Kodama
- Health and Welfare Division, Hiroshima Prefectural Government Research Center, Hiroshima, Japan
| | - Kanon Abe
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hirohito Imada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Clinical Research Unit of Nanoro, Institute for Health Science Research, Nanoro, Burkina Faso
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Toru Sako
- General Affairs, Foundation for Community Health and Medicine Promotion in Hiroshima Prefecture, Hiroshima, Japan
| | - Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - Kazuaki Chayama
- Collaborative Research Laboratory of Medical Innovation, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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22
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Imajo K, Toyoda H, Yasuda S, Suzuki Y, Sugimoto K, Kuroda H, Akita T, Tanaka J, Yasui Y, Tamaki N, Kurosaki M, Izumi N, Nakajima A, Kumada T. Utility of Ultrasound-Guided Attenuation Parameter for Grading Steatosis With Reference to MRI-PDFF in a Large Cohort. Clin Gastroenterol Hepatol 2022; 20:2533-2541.e7. [PMID: 34768008 DOI: 10.1016/j.cgh.2021.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/19/2021] [Accepted: 11/02/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Ultrasound-guided attenuation parameter (UGAP) is recently developed for noninvasive evaluation of steatosis. However, reports on its usefulness in clinical practice are limited. This prospective multicenter study analyzed the diagnostic accuracy of grading steatosis with reference to magnetic resonance imaging-based proton density fat fraction (MRI-PDFF), a noninvasive method with high accuracy, in a large cohort. METHODS Altogether, 1010 patients with chronic liver disease who underwent MRI-PDFF and UGAP were recruited and prospectively enrolled from 6 Japanese liver centers. Linearity was evaluated using intraclass correlation coefficients between MRI-PDFF and UGAP values. Bias, defined as the mean difference between MRI-PDFF and UGAP values, was assessed by Bland-Altman analysis. UGAP cutoffs for pairwise MRI-PDFF-based steatosis grade were determined using area under the receiver-operating characteristic curve (AUROC) analyses. RESULTS UGAP values were shown to be normally distributed. However, because PDFF values were not normally distributed, they were log-transformed (MRI-logPDFF). UGAP values significantly correlated with MRI-logPDFF (intraclass correlation coefficient = 0.768). Additionally, Bland-Altman analysis showed good agreement between MRI-logPDFF and UGAP with a mean bias of 0.0002% and a narrow range of agreement (95% confidence interval [CI], -0.015 to 0.015). The AUROCs for distinguishing steatosis grade ≥1 (MRI-PDFF ≥5.2%), ≥2 (MRI-PDFF ≥11.3%), and 3 (MRI-PDFF ≥17.1%) were 0.910 (95% CI, 0.891-0.928), 0.912 (95% CI, 0.894-0.929), and 0.894 (95% CI, 0.873-0.916), respectively. CONCLUSIONS UGAP has excellent diagnostic accuracy for grading steatosis with reference to MRI-PDFF. Additionally, UGAP has good linearity and negligible bias, suggesting that UGAP has excellent technical performance characteristics that can be widely used in clinical trials and patient care. (UMIN Clinical Trials Registry, Number: UMIN000041196).
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Affiliation(s)
- Kento Imajo
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan; Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan.
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Satoshi Yasuda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Yasuaki Suzuki
- Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hidekatsu Kuroda
- Division of Hepatology, Department of Internal Medicine, Iwate Medical University, Yahaba, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Yutaka Yasui
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Nobuharu Tamaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Masayuki Kurosaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Namiki Izumi
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takashi Kumada
- Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan
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23
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Imada H, Akita T, Sugiyama A, Tanaka J. Impact of robot-assisted surgery appearance on reduction of annual blood transfusion cases in Japan: application of meta-analysis and NDB open data. J Robot Surg 2022; 16:1229-1232. [PMID: 34997909 PMCID: PMC8742561 DOI: 10.1007/s11701-021-01365-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/30/2021] [Indexed: 11/30/2022]
Abstract
In Japan, the robot-assisted partial nephrectomy (RAPN) started to be covered by health insurance since 2016, and it is replacing conventional open partial nephrectomy (OPN). RAPN is a minimally invasive surgery, and the spreading of RAPN in partial nephrectomy (PN) performed annually is expected to reduce the number of blood transfusions in Japan. The number of PN surgery in Japan was calculated using the Japanese NDB open data in 2018. We extracted articles comparing the transfusion rates of RAPN and OPN from 2017 to 2021 using PubMed, Web of Science, and Ichu-shi, and integrated the ratios of transfusion rates by meta-analysis. We estimated the reduction in the annual transfusion cases in PN due to the widespread use of RAPN. The total number of renal cancer surgeries in 2018 was 21,298, of which 3,876 (18.2%) were RAPN and 4,384 (20.6%) were OPN. For the comparison of transfusion implementation rate between RAPN and OPN, 871 articles were screened and 27 articles were included. The pooled ratio in transfusion rate of RAPN compared with OPN was 0.49 [0.46, 0.52]; the introduction of RAPN was estimated to have reduced the annual number of transfusions in PN by 9.1% compared with that of unintroduced RAPN. This study showed quantitatively evaluated the impact of the introduction of RAPN on the decrease in the annual number of transfusions in Japan. This method has the potential to evaluate the impact of robot-assisted surgery on the use of blood products for transfusion.
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Affiliation(s)
- Hirohito Imada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
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24
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Sugiyama A, Kurisu A, Nagashima S, Hando K, Saipova K, Akhmedova S, Abe K, Imada H, Hussain MRA, Ouoba S, E B, Ko K, Akita T, Yamazaki S, Yokozaki M, Tanaka J. Seroepidemiological study of factors affecting anti-spike IgG antibody titers after a two-dose mRNA COVID-19 vaccination in 3744 healthy Japanese volunteers. Sci Rep 2022; 12:16294. [PMID: 36175506 PMCID: PMC9520958 DOI: 10.1038/s41598-022-20747-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 09/19/2022] [Indexed: 02/06/2023] Open
Abstract
Several factors related to anti-spike(S) IgG antibody titers after mRNA COVID-19 vaccination have been elucidated, but the magnitude of the effects of each factor has not been fully understood. This cross-sectional study assessed anti-S and anti-nucleocapsid (N) antibody titers on 3744 healthy volunteers (median age, 36 years; IQR, 24-49 years; females, 59.0%) who received two doses of mRNA-1273 or BNT162b2 vaccine and completed a survey questionnaire. Multiple regression was conducted to identify factors associated with antibody titers. All but one participant tested positive for anti-S antibodies (99.97%). The following factors were independently and significantly associated with high antibody titer: < 3 months from vaccination (ratio of means 4.41); mRNA-1273 vaccine (1.90, vs BNT162b2); anti-N antibody positivity (1.62); age (10's: 1.50, 20's: 1.37, 30's: 1.26, 40's: 1.16, 50's: 1.15, vs ≧60's); female (1.07); immunosuppressive therapy (0.54); current smoking (0.85); and current drinking (0.96). The largest impact on anti-S IgG antibody titers was found in elapsed time after vaccination, followed by vaccine brand, immunosuppressants, previous SARS-CoV-2 infection (anti-N antibody positive), and age. Although the influence of adverse reactions after the vaccine, gender, smoking, and drinking was relatively small, they were independently related factors.
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Affiliation(s)
- Aya Sugiyama
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Akemi Kurisu
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Shintaro Nagashima
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Kiyomi Hando
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Khilola Saipova
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,grid.444564.30000 0004 0402 7972Department of Clinical Radiology and Oncology, Andijan State Medical Institute, Andijan, Uzbekistan
| | - Sayyora Akhmedova
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,Department of Cardiorheumatology, Republican Specialized Scientific-Practical Medical Center of Pediatrics, Tashkent, Uzbekistan
| | - Kanon Abe
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Hirohito Imada
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Md Razeen Ashraf Hussain
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Serge Ouoba
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,grid.457337.10000 0004 0564 0509Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de La Santé (IRSS), Nanoro, Burkina Faso
| | - Bunthen E
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan ,grid.415732.6Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Ko Ko
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Tomoyuki Akita
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
| | - Shinichi Yamazaki
- grid.470097.d0000 0004 0618 7953Division of Clinical Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Michiya Yokozaki
- grid.470097.d0000 0004 0618 7953Division of Clinical Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Junko Tanaka
- grid.257022.00000 0000 8711 3200Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551 Japan
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25
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Ito M, Sugiyama A, Mino M, Kodama M, Nagaoki Y, Abe K, Imada H, Ouoba S, E B, Ko K, Akita T, Harakawa T, Sako T, Chayama K, Tanaka J. Prevalence of Helicobacter pylori infection in the general population evaluated by a resident-register-based epidemiological study. J Gastroenterol 2022; 57:540-546. [PMID: 35723753 DOI: 10.1007/s00535-022-01885-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/20/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND The current status of Helicobacter pylori infection in Japan has not been investigated. We evaluated the status of H. pylori infection in a Japanese general population using large-scale resident-register-based sampling. METHODS All 6069 adults in a rural town and 6000 adults in two urban cities (3000 each), selected by register-based random sampling, were enrolled in our health check-up program. Antibody titers against Helicobacter pylori (cut-off value was 3 U/mL by Eiken E-plate) were evaluated, and subjects with a positive result were encouraged to undergo further examinations. RESULTS A total of 1586 subjects participated in serum sampling. The overall prevalence of H. pylori infection was 40.0% (634/1586), and it increased with age both in rural and urban areas. Although the overall positive rate was higher in the rural area (49.4%) than in the urban areas (35.6 and 32.3%), there was no difference in H. pylori status of younger subjects between the two areas. Among 634 patients with a positive titer, 374 (59.0%) underwent further examinations including endoscopic examination, and 180/634 (28.4%) patients received eradication therapy. Gastric neoplasms (three adenocarcinomas and one adenoma) were found in our screening program. CONCLUSION We clarified population-based random sampling data of H. pylori infection in a Japanese general population. In younger subjects, a decrease in the prevalence of H. pylori infection was confirmed both in rural and urban areas. This provides basic information for establishing a strategy to reduce gastric cancer deaths.
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Affiliation(s)
- Masanori Ito
- Department of General Internal Medicine, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
| | - Aya Sugiyama
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Megumi Mino
- Hiroshima Prefectural Government Health and Welfare Division, Hiroshima, Japan
| | - Masaomi Kodama
- Hiroshima Prefectural Government Health and Welfare Division, Hiroshima, Japan
| | - Yuko Nagaoki
- Department of Internal Medicine, Mazda Hospital, Hiroshima, Japan
| | - Kanon Abe
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Hirohito Imada
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Serge Ouoba
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de La Santé (IRSS), Nanoro, Burkina Faso
| | - Bunthen E
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Payment Certification Agency, Ministry of Health, Phnom Penh, Cambodia
| | - Ko Ko
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Takayuki Harakawa
- General Affairs, Foundation for Community Health and Medicine Promotion in Hiroshima Prefecture, Hiroshima, Japan
| | - Toru Sako
- General Affairs, Foundation for Community Health and Medicine Promotion in Hiroshima Prefecture, Hiroshima, Japan
| | - Kazuaki Chayama
- Collaborative Research Laboratory of Medical Innovation, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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26
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Kumada T, Ogawa S, Goto T, Toyoda H, Yasuda S, Ito T, Yasuda E, Akita T, Tanaka J. Intra-individual Comparisons of the Ultrasound-Guided Attenuation Parameter and the Magnetic Resonance Imaging-Based Proton Density Fat Fraction Using Bias and Precision Statistics. Ultrasound Med Biol 2022; 48:1537-1546. [PMID: 35613974 DOI: 10.1016/j.ultrasmedbio.2022.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/25/2022] [Accepted: 03/30/2022] [Indexed: 06/15/2023]
Abstract
Ultrasound-based techniques using the attenuation coefficient, including the ultrasound-guided attenuation parameter (UGAP), have been developed for the quantification of hepatic steatosis. The magnetic resonance imaging-based proton density fat fraction (MRI-PDFF) is considered to be more accurate than liver biopsy for liver fat quantification. The aim of this study was to perform intra-individual comparisons of UGAP and MRI-PDFF for determining hepatic steatosis grade. The study enrolled 309 patients who underwent UGAP and MRI-PDFF measurements. Bland-Altman analysis was conducted after transforming MRI-PDFF values to a normal distribution and converted to a common set of units using linear regression analysis for differing scales. The expected limits of agreement (LOA) was defined as the square root of the sum of the squares of UGAP and MRI-PDFF precision. A Bland-Altman plot revealed that the bias and upper and lower LOAs (ULOA and LLOA) were -0.0047, 0.1160 and -0.1255, respectively. The percentage difference indicated that the mean, ULOA and LLOA were -1.1434%, 18.1723% and -20.4590%, respectively. The calculated expected LOA was 18.5449%, and 283 of 309 patients (91.6%) had a percentage difference within 18.5449%. Bland-Altman analysis revealed that UGAP and MRI-PDFF were interchangeable within a clinically acceptable range.
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Affiliation(s)
- Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Gifu, Japan.
| | - Sadanobu Ogawa
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Gifu, Japan
| | - Tatsuya Goto
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Gifu, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Gifu, Japan
| | - Satoshi Yasuda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Gifu, Japan
| | - Takanori Ito
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Eisuke Yasuda
- Department of Radiological Technology, Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Mie, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
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27
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Kaneko S, Kurosaki M, Kurisu A, Akita T, Tanaka J, Kanto T. Impact of antiviral therapy for disease progression and non-invasive liver fibrosis index in patients with chronic hepatitis C: Markov chain model analysis. Hepatol Res 2022; 52:665-676. [PMID: 35591759 DOI: 10.1111/hepr.13794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/19/2022] [Accepted: 05/13/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND/AIM Antiviral therapy advancements resulted in an era in which eradication of hepatitis C has become a goal, however, there are few reports on the long-term course of liver disease progression with antiviral therapy. The aim of this study was to use the Markov model to analyze disease progression and non-invasive liver fibrosis index in hepatitis C Patients. METHODS Patients with chronic hepatitis C (n = 1432) were diagnosed between January 2012 and May 2021 in the Musashino Red Cross Hospital. Patients with other hepatitis virus co-infection, chronic liver disease, and hepatocellular carcinoma (HCC) at the beginning of the study were excluded. A total of 618 patients with a 1-year or longer observation period were studied. The liver disease state was defined as chronic hepatitis (CH), compensated liver cirrhosis (CLC), decompensated liver cirrhosis (DLC), and HCC. RESULTS Cirrhosis and high FIB-4 index (≥3.61) were 42 cases (6.8%) and 208 cases (33.6%), respectively at the start of the study. The 40 years estimated transition analysis of 40-year-old CH low FIB-4 level (<3.61) revealed that the proportion of CH low/high, CLC low/high, DLC low/high, and HCC were 10.83%/10.86%, 0.35%/2.64%, 0%/3.21% 72.11% in untreated unit and 47.83%/9.21%, 6.69%/1.32%, 0.70%/0.99%, 33.27% in treated unit, respectively. Antiviral therapy suppressed liver fibrosis, disease progression, and HCC development significantly. CONCLUSION Markov model analysis of hepatitis C virus patients showed the impact of antiviral therapy on the suppression of disease progression in the order of CH, CLC, and DLC.
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Affiliation(s)
- Shun Kaneko
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Tokyo, Japan
| | - Masayuki Kurosaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Tokyo, Japan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsuya Kanto
- Department of Liver Disease, Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Chiba, Japan
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28
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Sugiyama A, Okada F, Abe K, Imada H, Ouoba S, E B, Hussain MRA, Ohisa M, Ko K, Nagashima S, Akita T, Yamazaki S, Yokozaki M, Kishita E, Tanaka J. A longitudinal study of anti-SARS-CoV-2 antibody seroprevalence in a random sample of the general population in Hiroshima in 2020. Environ Health Prev Med 2022; 27:30. [PMID: 35793938 PMCID: PMC9283912 DOI: 10.1265/ehpm.22-00016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND This longitudinal study aimed to determine chronological changes in the seroprevalence of prior SARS-CoV-2 infection, including asymptomatic infections in Hiroshima Prefecture, Japan. METHODS A stratified random sample of 7,500 residents from five cities of Hiroshima Prefecture was selected to participate in a three-round survey from late 2020 to early 2021, before the introduction of the COVID-19 vaccine. The seroprevalence of anti-SARS-CoV-2 antibodies was calculated if at least two of four commercially available immunoassays were positive. Then, the ratio between seroprevalence and the prevalence of confirmed COVID-19 cases in Hiroshima was calculated and compared to the results from other prefectures where the Ministry of Health, Labour and Welfare conducted a survey by using the same reagents at almost the same period. RESULTS The numbers of participants in the first, second, and third rounds of the survey were 3025, 2396, and 2351, respectively and their anti-SARS-CoV-2 antibodies seroprevalences were 0.03% (95% confidence interval: 0.00-0.10%), 0.08% (0.00-0.20%), and 0.30% (0.08-0.52%), respectively. The ratio between the seroprevalence and the prevalence of confirmed COVID-19 cases in Hiroshima was 1.2, which was smaller than that in similar studies in other prefectures. CONCLUSIONS The seroprevalence of anti-SARS-CoV-2 antibodies in Hiroshima increased tenfold in a half year. The difference between seroprevalence and the prevalence of confirmed COVID-19 cases in Hiroshima was smaller than that in other prefectures, suggesting that asymptomatic patients were more actively detected in Hiroshima.
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Affiliation(s)
- Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Fumie Okada
- Hiroshima Prefecture Health and Welfare Bureau
| | - Kanon Abe
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Hirohito Imada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University.,Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS)
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University.,Payment Certification Agency, Ministry of Health
| | - Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Masayuki Ohisa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Shinichi Yamazaki
- Division of Clinical Laboratory Medicine, Hiroshima University Hospital
| | - Michiya Yokozaki
- Division of Clinical Laboratory Medicine, Hiroshima University Hospital
| | | | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University
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Sugiyama A, Kurisu A, Akita T, Tanaka J. Authors' response to "prevalence and incidence of fatty liver for people who took part in a health checkup in 2008-2019 in Japan". Liver Int 2022; 42:1478. [PMID: 35312148 DOI: 10.1111/liv.15248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 02/13/2023]
Affiliation(s)
- Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Sugiyama A, Kurisu A, E B, Ouoba S, Ko K, Rakhimov A, Akita T, Harakawa T, Sako T, Koshiyama M, Kumada T, Tanaka J. Distribution of FIB-4 index in the general population: analysis of 75,666 residents who underwent health checkups. BMC Gastroenterol 2022; 22:241. [PMID: 35562658 PMCID: PMC9101936 DOI: 10.1186/s12876-022-02290-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 04/20/2022] [Indexed: 12/15/2022] Open
Abstract
Background Fatty liver is frequently found in a general population, and it is critical to detect advanced fibrosis. FIB-4 index is considered a useful marker for evaluating liver fibrosis but the distribution of FIB-4 index in the general population remains unknown. Methods This cross-sectional study included residents who underwent ultrasonography at health checkups in Hiroshima or Iwate prefectures. The distribution of FIB-4 index in the total study population (N = 75,666) as well as in non-alcoholic fatty liver disease (NAFLD) populations (N = 17,968) and non-drinkers without fatty liver populations (N = 47,222) was evaluated. The distribution of aspartate aminotransferase (AST) levels, alanine aminotransferase (ALT) levels was also evaluated. Results The mean FIB-4 index in the total study population was 1.20 ± 0.63. FIB-4 index ≥ 2.67, which indicates a high risk of liver fibrosis, was found in 16.4% of those aged ≥ 70 years. In the NAFLD population, 58.1% of those in their 60 s and 88.1% of those ≥ 70 years met the criteria for referral to hepatologists by using the recommended FIB-4 index cutoff value (≥ 1.3). The mean FIB-4 index in the NAFLD population (1.12 ± 0.58) was significantly lower than in the non-drinkers without fatty liver (1.23 ± 0.63, p < 0.0001). The non-drinkers without fatty liver tended to have higher AST relative to ALT levels (60.0% with AST/ALT > 1.0), whereas the results in the NAFLD population were opposite (14.8% with AST/ALT > 1.0). AST > ALT resulted in a higher FIB-4 index in non-drinkers without fatty liver due to the nature of FIB-4 index formula. Conclusions The cutoff value of FIB-4 index (≥ 1.3) for triaging the elderly people with fatty liver for referral to hepatologists should be reconsidered to avoid over-referral. Due to the impact of age and characteristics of AST/ALT ratios, there is no prospect of using FIB-4 index for primary screening for liver fibrosis in a general population of unknown presence or absence of liver disease, even though it can be easily calculated using routine clinical indices. It is desired to develop a non-invasive method for picking up cases with advanced fibrosis latent in the general population. Supplementary Information The online version contains supplementary material available at 10.1186/s12876-022-02290-1.
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Affiliation(s)
- Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Unite De Recherche Clinique De Nanoro (URCN), Institut de Recherche en Science de La Sante (IRSS), Nanoro, Burkina Faso
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Anvarjon Rakhimov
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Takayuki Harakawa
- General Affairs, Foundation for Community Health and Medicine Promotion in Hiroshima Prefecture, Hiroshima, Japan
| | - Toru Sako
- General Affairs, Foundation for Community Health and Medicine Promotion in Hiroshima Prefecture, Hiroshima, Japan
| | | | - Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Gifu, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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31
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Sugiyama A, Miwata K, Kitahara Y, Okimoto M, Abe K, E B, Ouoba S, Akita T, Tanimine N, Ohdan H, Kubo T, Nagasawa A, Nakanishi T, Takafuta T, Tanaka J. Long COVID occurrence in COVID-19 survivors. Sci Rep 2022; 12:6039. [PMID: 35411017 PMCID: PMC8996498 DOI: 10.1038/s41598-022-10051-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/09/2022] [Indexed: 12/14/2022] Open
Abstract
This cross-sectional study aimed to investigate the post-acute consequences of COVID-19. We conducted a self-administered questionnaire survey on sequelae, psychological distress (K6), impairments in work performance (WFun), and COVID-19-related experiences of stigma and discrimination in two designated COVID-19 hospitals in Hiroshima Prefecture, Japan, between August 2020 and March 2021. The prevalence of sequelae was calculated by age and COVID-19 severity. Factors independently associated with sequelae or psychological distress were identified using logistic regression analysis. Among 127 patients who had recovered from COVID-19, 52.0% had persistent symptoms at a median of 29 days [IQR 23-128] after COVID-19 onset. Among patients with mild COVID-19, 49.5% had sequelae. The most frequent symptoms were olfactory disorders (15.0%), taste disorders (14.2%), and cough (14.2%). Multivariate analysis showed that age was an independent risk factor for sequelae (adjusted odds ratios [AOR] for ≥ 60 years vs. < 40 years 3.63, p = 0.0165). Possible psychological distress was noted in 30.7% (17.9% of males and 45.0% of females). Female sex and the presence of sequelae were independent risk factors for psychological distress. Of all participants, 29.1% had possible impairments in work performance. Experiences of stigma and discrimination were reported by 43.3% of participants. This study revealed the significant impacts of Long COVID on health in local communities. A large-scale, long-term cohort study is desired.
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Affiliation(s)
- Aya Sugiyama
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kei Miwata
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | | | - Mafumi Okimoto
- Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Kanon Abe
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Bunthen E
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
- Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Serge Ouoba
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de La Santé (IRSS), Nanoro, Burkina Faso
| | - Tomoyuki Akita
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Naoki Tanimine
- Department of Gastroenterological and Transplantation Surgery, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplantation Surgery, Hiroshima University, Hiroshima, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | | | | | - Junko Tanaka
- Department of Epidemiology Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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32
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Ko K, Takahashi K, Nagashima S, E B, Ouoba S, Takafuta T, Fujii Y, Mimori M, Okada F, Kishita E, Ariyoshi K, Hussain MRA, Sugiyama A, Akita T, Kuwabara M, Tanaka J. Exercising the Sanger Sequencing Strategy for Variants Screening and Full-Length Genome of SARS-CoV-2 Virus during Alpha, Delta, and Omicron Outbreaks in Hiroshima. Viruses 2022; 14:v14040720. [PMID: 35458450 PMCID: PMC9030034 DOI: 10.3390/v14040720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/12/2022] [Accepted: 03/26/2022] [Indexed: 12/04/2022] Open
Abstract
This study aimed to exercise the Sanger sequencing strategy for screening of variants among confirmed COVID-19 cases and validate our strategy against NGS strains in Hiroshima retrieved from GISAID. A total of 660 samples from confirmed COVID-19 cases underwent screening for variants by Sanger-based partial sequencing to the targeted spike gene (nt22,735~nt23,532) using an in-house-developed primer set. The identification of variants was done by unique checkpoints of base nucleotide changes in the targeted spike gene. Moreover, we amplified one full-length genome using Sanger method and an in-house-developed primer library. Using NGS strains of the same sampling period from GISAID, a phylogenetic tree was constructed to examine the distribution pattern of variants in Hiroshima and to validate our Sanger method. The modified primer set provided 100% validation and 99.2% amplification. PANGO Lineage R.1 was detected in late in the third wave, followed by Alpha (B.1.1.7) domination in the fourth wave, Delta (B.1.617.2) domination in the fifth wave, and Omicron (B.1.1.529) domination in the sixth wave, and there was no significant difference in viral copies between variants (p = 0.09). The variants showed different transmission patterns, but the distribution of variants is consistent to that shown by the phylogenetic tree. The Sanger method also provided successful amplification of the full-length genome of the SARS-CoV-2 virus. Our Sanger sequencing strategy was useful for the screening of SASR-CoV-2 variants without the need for full-genome amplification. The modified primer set was validated to use universally, which allows an understanding of the variants’ distribution in real time and provides the evidence for policy-making and the formulation or modification of preventive strategies.
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Affiliation(s)
- Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
- Payment Certification Agency, Ministry of Health, Lot 80, Street 289, Sangkat Boeng Kak Ti Pir, Khan Tuol Kouk, Phnom Penh 12152, Cambodia
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
- Unité de Recherche Clinique de Nanoro (URCN), Nanoro BP18, Burkina Faso
| | - Toshiro Takafuta
- Hiroshima City Funairi Citizens Hospital, 14-11, Funairisaiwaicho, Naka-ku, Hiroshima 730-0844, Japan;
| | - Yoshiki Fujii
- Hiroshima City Institute of Public Health, 4 Chome-1-2, Shoko Center, Nishi-ku, Hiroshima 733-0833, Japan;
| | - Michi Mimori
- Hiroshima City Health and Welfare Bureau, 1 Chome-6-34, Kokutaijimachi, Naka-ku, Hiroshima 734-0042, Japan;
| | - Fumie Okada
- Hiroshima Prefectural Health and Welfare Bureau, 10-52, Motomachi, Naka-ku, Hiroshima 730-8511, Japan; (F.O.); (E.K.)
| | - Eisaku Kishita
- Hiroshima Prefectural Health and Welfare Bureau, 10-52, Motomachi, Naka-ku, Hiroshima 730-8511, Japan; (F.O.); (E.K.)
| | - Kunie Ariyoshi
- Hiroshima Prefectural Technology Research Institute, Public Health and Environment Center, 1 Chome-6-29, Minamimachi, Minami-ku, Hiroshima 734-0007, Japan;
| | - Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
| | - Masao Kuwabara
- Hiroshima Prefectural Center for Disease Control and Prevention, 10-52, Motomachi, Naka-ku, Hiroshima 730-8511, Japan;
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8551, Japan; (K.K.); (K.T.); (S.N.); (B.E.); (S.O.); (M.R.A.H.); (A.S.); (T.A.)
- Correspondence:
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Tanaka J, Kurisu A, Ohara M, Ouoba S, Ohisa M, Sugiyama A, Wang ML, Hiebert L, Kanto T, Akita T. Burden of chronic hepatitis B and C infections in 2015 and future trends in Japan: A simulation study. The Lancet Regional Health - Western Pacific 2022; 22:100428. [PMID: 35637862 PMCID: PMC9142742 DOI: 10.1016/j.lanwpc.2022.100428] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background Determining the number of chronic hepatitis B (HBV) and C virus (HCV) infections is essential to assess the progress towards the World Health Organization 2030 viral hepatitis elimination goals. Using data from the Japanese National Database (NDB), we calculated the number of chronic HBV and HCV infections in 2015 and predicted the trend until 2035. Methods NDB and first-time blood donors data were used to calculate the number of chronic HBV and HCV infections in 2015. A Markov simulation was applied to predict chronic infections until 2035 using transition probabilities calculated from NDB data. Findings The total number of chronic HBV and HCV infections in 2015 in Japan was 1,905,187–2,490,873 (HCV:877,841–1,302,179, HBV:1,027,346–1,188,694), of which 923,661–1,509,347 were undiagnosed or diagnosed but not linked to care (“not engaged in care”), and 981,526 were engaged in care. Chronic HBV and HCV infections are expected to be 923,313–1,304,598 in 2030, and 739,118–1,045,884 in 2035. Compared to 2015, by 2035, the number of persons with HCV not engaged in care will decline by 59·8 – 76·1% and 86·5% for patients in care. For HBV, a 47·3 – 49·3% decrease is expected for persons not engaged in care and a decline of 26·0% for patients engaged in care. Interpretation Although the burden of HBV and HCV is expected to decrease by 2035, challenges in controlling hepatitis remain. Improved and innovative screening strategies with linkage to care for HCV cases, and a functional cure for HBV are needed. Funding Japan Ministry of Health, Labour and Welfare.
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Affiliation(s)
- Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
- Corresponding authors at: Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi 734-8551, Japan.
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Masatsugu Ohara
- Department of Gastroenterology and Hepatology, National Hospital Organization Hokkaido Medical Center, Hokkaido, Japan
- Department of Gastroenterology and Hepatology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Masayuki Ohisa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Michelle L. Wang
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Lindsey Hiebert
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Coalition for Global Hepatitis Elimination, The Task Force for Global Health, Decatur, GA, USA
| | - Tatsuya Kanto
- The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
- Corresponding authors at: Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima-shi 734-8551, Japan.
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Ko K, Takahashi K, Nagashima S, E B, Ouoba S, Hussain MRA, Akita T, Sugiyama A, Sakaguchi T, Tahara H, Ohge H, Ohdan H, Kubo T, Ishikawa N, Takafuta T, Fujii Y, Mimori M, Okada F, Kishita E, Ariyoshi K, Kuwabara M, Tanaka J. Mass Screening of SARS-CoV-2 Variants using Sanger Sequencing Strategy in Hiroshima, Japan. Sci Rep 2022; 12:2419. [PMID: 35165301 PMCID: PMC8844052 DOI: 10.1038/s41598-022-04952-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022] Open
Abstract
This study aimed to develop the feasible and effective universal screening strategy of the notable SARS-CoV-2 variants by Sanger Sequencing Strategy and then practically applied it for mass screening in Hiroshima, Japan. A total of 734 samples from COVID-19 confirmed cases in Hiroshima were screened for the notable SARS-CoV-2 variants (B.1.1.7, B.1.351, P.1, B.1.617.2, B.1.617.1, C.37, B.1.1.529, etc.). The targeted spike region is amplified by nested RT-PCR using in-house designed primer set hCoV-Spike-A and standard amplification protocol. Additionally, randomly selected 96 samples were also amplified using primer sets hCoV-Spike-B and hCoV-Spike-C. The negative amplified samples were repeated for second attempt of amplification by volume-up protocol. Thereafter, the amplified products were assigned for Sanger sequencing using corresponding primers. The positive amplification rate of primer set hCoV-Spike-A, hCoV-Spike-B and hCoV-Spike-C were 87.3%, 83.3% and 93.8% respectively for standard protocol and increased to 99.6%, 95.8% and 96.9% after second attempt by volume-up protocol. The readiness of genome sequences was 96.9%, 100% and 100% respectively. Among 48 mutant isolates, 26 were B.1.1.7 (Alpha), 7 were E484K single mutation and the rest were other types of mutation. Moreover, 5 cluster cases with single mutation at N501S were firstly reported in Hiroshima. This study indicates the reliability and effectiveness of Sanger sequencing to screen large number of samples for the notable SARS-CoV-2 variants. Compared to the Next Generation Sequencing (NGS), our method introduces the feasible, universally applicable, and practically useful tool for identification of the emerging variants with less expensive and time consuming especially in those countries where the NGS is not practically available. Our method allows not only to identify the pre-existing variants but also to examine other rare type of mutation or newly emerged variants and is crucial for prevention and control of pandemic.
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Affiliation(s)
- Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Payment Certification Agency, Ministry of Health, Phnom Penh, Cambodia
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Takemasa Sakaguchi
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hidetoshi Tahara
- Department of Cellular and Molecular Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroki Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Nobuhisa Ishikawa
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | | | - Yoshiki Fujii
- Hiroshima City Institute of Public Health, Hiroshima, Japan
| | - Michi Mimori
- Hiroshima City Health and Welfare Bureau, Hiroshima, Japan
| | - Fumie Okada
- Hiroshima Prefectural Health and Welfare Bureau, Hiroshima, Japan
| | - Eisaku Kishita
- Hiroshima Prefectural Health and Welfare Bureau, Hiroshima, Japan
| | - Kunie Ariyoshi
- Hirishima Prefectural Technology Research Institute Health and Environment Center, Hiroshima, Japan
| | - Masao Kuwabara
- Hiroshima Prefectural Center for Disease Control and Prevention, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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Nobuhara H, Matsugu Y, Tanaka J, Akita T, Ito K. The preventive effects of perioperative oral care on surgical site infections after pancreatic cancer surgery: a retrospective study. Support Care Cancer 2022; 30:3337-3344. [PMID: 34988706 DOI: 10.1007/s00520-021-06791-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 12/30/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Pancreatic ductal adenocarcinoma (PDAC) is the most malignant cancer of the gastrointestinal system, and is associated with high rates of postoperative complications, including surgical site infections (SSIs). Perioperative oral care is an effective measure for preventing postoperative pneumonia. However, the preventive effects of perioperative oral care on SSIs have not been reported. We investigated the preventive effects of perioperative oral care on SSIs after pancreatic cancer surgery. METHODS A total of 103 patients with PDAC who underwent radical resection at Hiroshima Prefectural Hospital (2011-2018) were enrolled in this retrospective study. Of the 103 patients, 75 received perioperative oral care by dentists and dental hygienists (oral care group), whereas 28 did not (control group). Univariate and multivariate analyses with propensity score as a covariate were used to investigate the incidence and risk factors of SSIs in the oral care and control groups. RESULTS The incidence of SSIs was significantly lower in the oral care group than in the control group (12.0% vs. 39.3%, P = 0.004). Logistic regression analysis revealed that a soft pancreas, the surgical procedure (pancreaticoduodenectomy), blood transfusion, diabetes mellitus, and the absence of oral care intervention were risk factors for SSIs. The odds ratio for the absence of oral care intervention was 6.090 (95% confidence interval: 1.750-21.200, P = 0.004). CONCLUSION Our results suggest that perioperative oral care may reduce the risk of developing SSIs after pancreatic cancer surgery. These findings need to be evaluated in future prospective studies. TRIAL REGISTRATION UMIN registration number: UMIN000042082; October 15, 2020, retrospectively registered.
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Affiliation(s)
- Hiroshi Nobuhara
- Department of Dentistry, Hiroshima Prefectural Hospital, 1-5-54 Ujina-Kanda, Minami-ku, Hiroshima, 734-8530, Japan
| | - Yasuhiro Matsugu
- Department of Clinical Nutrition, Hiroshima Prefectural Hospital, 1-5-54 Ujina-Kanda, Minami-ku, Hiroshima, 734-8530, Japan. .,Department of Gastroenterological, Breast and Transplant Surgery, Hiroshima Prefectural Hospital, 1-5-54 Ujina-Kanda, Minami-ku, Hiroshima, 734-8530, Japan.
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Keiko Ito
- Department of Clinical Nutrition, Hiroshima Prefectural Hospital, 1-5-54 Ujina-Kanda, Minami-ku, Hiroshima, 734-8530, Japan
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Akita S, Fujioka M, Akita T, Tanaka J, Masunaga A, Kawahara T. Effects of Hand Hygiene Using 4% Chlorhexidine Gluconate or Natural Soap During Hand Rubbing Followed by Alcohol-Based 1% Chlorhexidine Gluconate Sanitizer Lotion in the Operating Room. Adv Wound Care (New Rochelle) 2022; 11:1-9. [PMID: 33563102 PMCID: PMC9831244 DOI: 10.1089/wound.2020.1352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Objective: Hand hygiene using either 4% chlorhexidine gluconate (CHG) or natural soap during hand rubbing, followed by alcohol-based 1% CHG sanitizer lotion in the operating room was compared to assess bacterial reduction, skin moisture, skin texture, and hand hygiene using qualitative questionnaires. Approach: A crossover study with 36 professional scrub nurses at two medical centers was performed to compare 4% CHG followed by alcohol-based 1% CHG sanitizer lotion, the Two-stage method with handwashing using natural soap followed by alcohol-based 1% CHG sanitizer lotion, and the Waterless method, after a period of 10 days of use. The study completely followed CONSORT, www.consort-statement.org. Results: There was no significant difference in bacterial reduction based on the bacterial colony-forming units between the two methods. The skin moisture and skin roughness scores were not significantly different between the two methods. The Waterless method was significantly better than the Two-stage method regarding "foaming," "quality," "longevity" (p < 0.0001, p < 0.0001, and p < 0.0001, respectively), but "disappearance" was significantly better by the Two-stage method (p = 0.0095) during washing and rubbing. Immediately after washing and rubbing, the Waterless method was significantly better regarding "tightness" and "moisture," whereas the Two-stage method was significantly better regarding "stickiness" (p = 0.0114, p = <0.0001, and 0.0059, respectively) Innovation: The Waterless method using natural soap during handwashing followed by alcohol-based 1% CHG sanitizer lotion was as effective as the Two-stage method of 4% CHG followed by alcohol-based 1% CHG sanitizer lotion. Conclusion: Handwashing using natural soap is simple and superior to hand scrubbing in several aspects.
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Affiliation(s)
- Sadanori Akita
- Department of Plastic Surgery, Wound Repair and Regeneration, School of Medicine, Fukuoka University, Fukuoka, Japan.,Correspondence: Department of Plastic Surgery, Wound Repair and Regeneration, School of Medicine, Fukuoka University, Fukuoka 8140180, Japan
| | - Masaki Fujioka
- Department of Plastic and Reconstructive Surgery, National Hospital Organization, Nagasaki Medical Center, Nagasaki, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan
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Sugiyama A, Kurisu A, Ouoba S, E B, Ko K, Rakhimov A, Hussain MRA, Akita T, Harakawa T, Sako T, Koshiyama M, Tanaka J. Relationship between drinking frequency and fatty liver prevalence or incidence in Japanese undergoing health checkup in 2008-2019. Liver Int 2021; 41:2914-2923. [PMID: 34523235 PMCID: PMC9292946 DOI: 10.1111/liv.15055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/25/2021] [Accepted: 09/05/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND & AIMS The relationship between the frequency of drinking and fatty liver in the general population is still poorly understood. This study analysed data from a large cohort who underwent health checkups in Japan between 2008 and 2019 to investigate the prevalence and incidence of fatty liver by alcohol consumption and risk factors for fatty liver. METHODS The prevalence of fatty liver diagnosed with ultrasonography was calculated in 75,670 residents. The incidence of fatty liver in 31,062 residents who underwent ultrasonography at least twice during the period without fatty liver at the first time was calculated using the person-year method. Multivariate logistic analysis was performed to investigate risk factors associated with the prevalence and incidence of fatty liver. RESULTS The prevalence of fatty liver was 27.6% (95% confidence interval [CI], 27.2-27.9) in non-drinkers, 28.5% (27.5-29.5) in moderate-drinkers and 28.0% (26.0-29.9) in heavy-drinkers. The incidence of fatty liver was 3,084/100,000 person-years (2,997-3,172/100,000) in non-drinkers, 3,754/100,000 person-years (3,481-4,042/100,000) in moderate-drinkers and 3,861/100,000 person-years (3,295-4,497/100,000) in heavy-drinkers. The prevalence and incidence of fatty liver were not associated with drinking status. Obesity was the most important independent risk factor (prevalence: adjusted odds ratio [AOR], 6.3; 95% CI, 6.0-6.5; incidence: AOR, 2.4; 95% CI, 2.3-2.6). CONCLUSIONS Drinking status does not affect the prevalence or incidence of fatty liver in Japanese residents undergoing health checkups. From a public health perspective, measures for obesity control must be prioritised to reduce the burden of disease of fatty liver in Japan.
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Affiliation(s)
- Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan,Unité de Recherche Clinique de Nanoro (URCN)Institut de Recherche en Science de la Santé (IRSS)NanoroBurkina Faso
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan,Payment Certification AgencyMinistry of HealthPhnom PenhCambodia
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Anvarjon Rakhimov
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Takayuki Harakawa
- General AffairsFoundation for Community Health and Medicine Promotion in Hiroshima PrefectureHiroshimaJapan
| | - Toru Sako
- General AffairsFoundation for Community Health and Medicine Promotion in Hiroshima PrefectureHiroshimaJapan
| | - Makoto Koshiyama
- Iwate Prefectural Preventive Medicine AssociationMorioka CityJapan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and PreventionGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
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Ouoba S, Ouedraogo JCRP, Lingani M, E B, Hussain MRA, Ko K, Nagashima S, Sugiyama A, Akita T, Tinto H, Tanaka J. Epidemiologic profile of hepatitis C virus infection and genotype distribution in Burkina Faso: a systematic review with meta-analysis. BMC Infect Dis 2021; 21:1126. [PMID: 34724902 PMCID: PMC8561994 DOI: 10.1186/s12879-021-06817-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/25/2021] [Indexed: 11/29/2022] Open
Abstract
Background Detailed characteristics of Hepatitis C virus (HCV) infection in Burkina Faso are scarce. The main aim of this study was to assess HCV seroprevalence in various settings and populations at risk in Burkina Faso between 1990 and 2020. Secondary objectives included the prevalence of HCV Ribonucleic acid (RNA) and the distribution of HCV genotypes. Methods A systematic database search, supplemented by a manual search, was conducted in PubMed, Web of Science, Scopus, and African Index Medicus. Studies reporting HCV seroprevalence data in low and high-risk populations in Burkina Faso were included, and a random-effects meta-analysis was applied. Risk of bias was assessed using the Joanna Briggs institute checklist. Results Low-risk populations were examined in 31 studies involving a total of 168,151 subjects, of whom 8330 were positive for HCV antibodies. Six studies included a total of 1484 high-risk persons, and 96 had antibodies to HCV. The pooled seroprevalence in low-risk populations was 3.72% (95% CI: 3.20–4.28) and 4.75% (95% CI: 1.79–8.94) in high-risk groups. A non-significant decreasing trend was observed over the study period. Seven studies tested HCV RNA in a total of 4759 individuals at low risk for HCV infection, and 81 were positive. The meta-analysis of HCV RNA yielded a pooled prevalence of 1.65% (95% CI: 0.74–2.89%) in low-risk populations, which is assumed to be indicative of HCV prevalence in the general population of Burkina Faso and suggests that about 301,174 people are active HCV carriers in the country. Genotypes 2 and 1 were the most frequent, with 60.3% and 25.0%, respectively. Conclusions HCV seroprevalence is intermediate in Burkina Faso and indicates the need to implement effective control strategies. There is a paucity of data at the national level and for rural and high-risk populations. General population screening and linkage to care are recommended, with special attention to rural and high-risk populations. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-021-06817-x.
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Affiliation(s)
- Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | | | - Moussa Lingani
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Bunthen E
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.,Payment Certification Agency (PCA), Ministry of Health, Phnom Penh, Cambodia
| | - Md Razeen Ashraf Hussain
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
| | - Halidou Tinto
- Unité de Recherche Clinique de Nanoro (URCN), Institut de Recherche en Science de la Santé (IRSS), Nanoro, Burkina Faso
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
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Ko K, Akita T, Satake M, Tanaka J. Epidemiology of viral hepatitis C: Road to elimination in Japan. Glob Health Med 2021; 3:262-269. [PMID: 34782867 DOI: 10.35772/ghm.2021.01069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/26/2021] [Accepted: 07/26/2021] [Indexed: 12/30/2022]
Abstract
Although HCV infection was the main cause of HCC in Japan contributing 70% over two decades after its first cloning in 1989, it was markedly decreased to 49% in 2013 and expected to decrease continuously. Based on blood donor national database, the new incident cases were 0.4/100,000 person-years, the prevalence was 0.13% and the total number was 890,902-1,302,179 in 2015. Establishment of blood donor screening with anti-HCV measurement and nucleic acid test introduced by Japanese Red Cross as pioneer, high-level medical and surgical care, and the government's policy under the Basic Act on Hepatitis Control have changed its epidemiology and outbreak trend and also enforced the disruption of potential transmission cascades. HCV prevalence among the younger generation was extremely low in all regions, and the predominant age for HCC has shifted to over 60 years old population. Considering such changes, HCV induced HCC occurrence is supposed to be ultimately suppressed in the near future. However, taking into account society changes, regulating intravenous drugs users and monitoring high-risk groups such as tattoos, and men who have sex with men are indeed required in Japan. Understanding the epidemiological changes in HCV is important in assigning, modifying, and designating effective response systems. Selective or national action plans, strategic approaches, and cooperation between government sectors have a positive impact on HCV prevention and control. A dramatic decrease in total number of HCV carriers, increase in number of people treated with highly effective DAA, and subsequent high SVR indicates Japan might achieve WHO's target of HCV elimination by 2030.
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Affiliation(s)
- Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masahiro Satake
- Central Blood Institute, Japanese Red Cross Society, Tokyo, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Matsugu Y, Ito K, Oshita A, Nobuhara H, Tanaka J, Akita T, Itamoto T. Postoperative oral energy and protein intakes for an enhanced recovery after surgery program incorporating early enteral nutrition for pancreaticoduodenectomy: A retrospective study. Nutr Clin Pract 2021; 37:654-665. [PMID: 34672385 DOI: 10.1002/ncp.10791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Although postoperative early oral feeding in the enhanced recovery after surgery (ERAS) program for pancreaticoduodenectomy (PD) is deemed safe, the assessment of oral intakes has been insufficient. This study aimed to investigate postoperative oral intakes and the effectiveness of an ERAS program incorporating early enteral nutrition (EN). METHODS In total, 203 patients with PD were enrolled retrospectively. The first group (group E1; n = 61) comprised 11 ERAS care elements, whereas the second group (group E2; n = 106) comprised 19 elements. The control group (group C; n = 36) was managed using traditional care before ERAS was implemented. Postoperative energy and protein requirements were estimated at 25-30 kcal per kilogram of ideal body weight and 1.2-1.5 g per kilogram of ideal body weight, respectively, and were investigated along with the length of hospital stay (LOS). RESULTS The oral energy and protein intakes from the diets in the ERAS groups at postoperative day 7 significantly increased compared with those in group C. Intakes in groups E1 and E2 were not significantly different and provided <30% of the requirements. However, the total intakes, which were compensated by EN, were maintained at >80% of the requirements. LOS was significantly shorter in groups E1 (31 days) and E2 (19 days) than in group C (52 days). CONCLUSIONS Postoperative early oral energy and protein intakes of this modified ERAS program failed to meet the dietary requirements. However, early EN compensated for the shortages and contributed to the reduction of LOS.
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Affiliation(s)
- Yasuhiro Matsugu
- Department of Clinical Nutrition, Hiroshima Prefectural Hospital, Hiroshima, Japan.,Department of Gastroenterological, Breast and Transplant Surgery, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Keiko Ito
- Department of Clinical Nutrition, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Akihiko Oshita
- Department of Gastroenterological, Breast and Transplant Surgery, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Hiroshi Nobuhara
- Department of Dentistry, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Toshiyuki Itamoto
- Department of Gastroenterological, Breast and Transplant Surgery, Hiroshima Prefectural Hospital, Hiroshima, Japan
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Naniwa S, Yamada S, Awano K, Yoshida A, Takami K, Tagashira T, Tsuda S, Terashita D, Takada H, Akita T, Takata K, Kunigita T, Nishijo K. Impact of wall shear stress affected by anatomical difference between acute and chronic coronary syndrome in patients with LAD proximal disease. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Recent hemodynamic studies have demonstrated that progression of coronary atherosclerosis occurs at low wall share-stress site, whereas plaque rupture frequently occurs at high share stress site. It is well recognized that wall shear stress is relatively low along the outer walls of the bifurcation.
We investigated consecutive 140 patients (77 with acute coronary syndrome (ACS) and 63 with chronic coronary syndrome (CCS) performed PCI for LAD proximal lesions (AHA seg.6) from January 2016 to December 2019. In CCS group, entry criteria included stenosis of at least 90% in the LAD proximal lesion or at least 70% in the LAD proximal lesion and objective evidence of myocardial ischemia (inducible ischemia with either exercise or pharmacologic vasodilator stress or with pressure wire). Exclusion criteria were patients with maintenance dialysis, chronic total occlusion lesions, in-stent restenosis, and clinically diagnosed unstable angina without troponin I elevation. We measured the distance from LMT distal carina to the culprit site (Distance) and plaque location (Location) with intravascular ultrasound and angle between LMT and LAD with cardiovascular angiography analysis system (CAAS) (Angle).
The two groups were generally well balanced with regard to baseline clinical characteristics. The mean (±SD) age of the patients was 69.0±11.8 years, and 75% were men. Medication at baseline was also similar between two groups except higher prevalence of statin prescription in CCS group. The Distance was shorter and Angle was steeper in CCS group than in ACS group. The number of patients with Angle less than 150 degrees and with Location in the lateral wall side was much more in CCS group.
In this study, plaques in CCS were frequently observed at low shear stress site, whereas those in ACS at high shear stress site. Plaque progression in CCS may be associated with low wall shear stress, and high shear stress may play key role in plaque rupture in ACS. This anatomical difference can partly explain the different mechanisms of onset between of ACS and CCS.
Funding Acknowledgement
Type of funding sources: None. Anatomical differenceCharacteristics and results
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Affiliation(s)
- S Naniwa
- Kita-Harima Medical Centre, Ono, Japan
| | - S Yamada
- Kita-Harima Medical Centre, Ono, Japan
| | - K Awano
- Kita-Harima Medical Centre, Ono, Japan
| | - A Yoshida
- Kita-Harima Medical Centre, Ono, Japan
| | - K Takami
- Kita-Harima Medical Centre, Ono, Japan
| | | | - S Tsuda
- Kita-Harima Medical Centre, Ono, Japan
| | | | - H Takada
- Kita-Harima Medical Centre, Ono, Japan
| | - T Akita
- Kita-Harima Medical Centre, Ono, Japan
| | - K Takata
- Kita-Harima Medical Centre, Ono, Japan
| | | | - K Nishijo
- Kita-Harima Medical Centre, Ono, Japan
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Imano N, Nishibuchi I, Kawabata E, Kinugasa Y, Shi L, Sakai C, Ishida M, Sakane H, Akita T, Ishida T, Kimura T, Murakami Y, Tanaka K, Horikoshi Y, Sun J, Nagata Y, Tashiro S. Evaluating Individual Radiosensitivity for the Prediction of Acute Toxicities of Chemoradiotherapy in Esophageal Cancer Patients. Radiat Res 2021; 195:244-252. [PMID: 33400798 DOI: 10.1667/rade-20-00234.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/16/2020] [Indexed: 11/03/2022]
Abstract
In this work, individual radiosensitivity was evaluated using DNA damage response and chromosomal aberrations (CAs) in peripheral blood lymphocytes (PBLs) for the prediction of acute toxicities of chemoradiotherapy (CRT) in esophageal cancer patients. Eighteen patients with esophageal cancer were enrolled in this prospective study. Prescribed doses were 60 Gy in 11 patients and 50 Gy in seven patients. Patients received 2 Gy radiotherapy five days a week. PBLs were obtained during treatment just before and 15 min after 2 Gy radiation therapy on the days when the cumulative dose reached 2, 20, 40 Gy and 50 or 60 Gy. PBLs were also obtained four weeks and six months after radiotherapy in all and 13 patients, respectively. Dicentric and ring chromosomes in PBLs were counted to evaluate the number of CAs. Gamma-H2AX foci per cell were scored to assess DNA double-strand breaks. We analyzed the association between these factors and adverse events. The number of γ-H2AX foci before radiotherapy showed no significant increase during CRT, while their increment was significantly reduced with the accumulation of radiation dose. The mean number of CAs increased during CRT up to 1.04 per metaphase, and gradually decreased to approximately 60% six months after CRT. Five patients showed grade 3 toxicities during or after CRT (overreactors: OR), while 13 had grade 2 or less toxicities (non-overreactors: NOR). The number of CAs was significantly higher in the OR group than in the NOR group at a cumulative dose of 20 Gy (mean value: 0.63 vs. 0.34, P = 0.02), 40 Gy (mean value: 0.90 vs. 0.52, P = 0.04), and the final day of radiotherapy (mean value: 1.49 vs. 0.84, P = 0.005). These findings suggest that number of CAs could be an index for predicting acute toxicities of CRT for esophageal cancer.
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Affiliation(s)
- Nobuki Imano
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan.,Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ikuno Nishibuchi
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Emi Kawabata
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yasuha Kinugasa
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Lin Shi
- Institute of Medical Imaging and Digital Medicine, School of Medical Imaging, Xuzhou Medical University, Xuzhou, China
| | - Chiemi Sakai
- Department of Cardiovascular Physiology and Medicine, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Mari Ishida
- Department of Cardiovascular Physiology and Medicine, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroaki Sakane
- Department of Diagnostic Radiology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takafumi Ishida
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Tomoki Kimura
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuji Murakami
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kimio Tanaka
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yasunori Horikoshi
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Jiying Sun
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yasushi Nagata
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Satoshi Tashiro
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
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Iwamoto K, Yamamoto B, Ohsawa I, Honda D, Horiuchi T, Tanaka A, Fukunaga A, Maehara J, Yamashita K, Akita T, Hide M. The diagnosis and treatment of hereditary angioedema patients in Japan: A patient reported outcome survey. Allergol Int 2021; 70:235-243. [PMID: 33168485 DOI: 10.1016/j.alit.2020.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/07/2020] [Accepted: 09/23/2020] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The rate at which patients are accurately diagnosed with hereditary angioedema (HAE), as well as diagnosed patients access to modern treatments differs greatly among countries. Moreover, the severity and burden of HAE on patients have been reported mostly on the basis of physician-reported surveys. To gain insight into the real-world conditions of patients with HAE through a patient-reported survey in Japan and identify any unmet needs. METHODS A questionnaire was distributed to 121 patients with HAE via a Japanese HAE patient organization during 2016-2017. Responses were collected from 70 patients (57.9%) and subjected to analysis. RESULTS The average periods from the initial appearance of symptoms (e.g. edema) to a HAE diagnosis was 15.6 years (min-max, 0-53). Patients visited an average of 4.6 different departments until receiving a definitive diagnosis. The average age at the first visit was 25.6 years (3-73) and at diagnosis 32.8 years (0-73). Patients reported an average of 15.7 (0-100) attacks per year, but only 53.1% of attacks were treated. The days of hospitalization due to severe attacks was 14.3 (0-200) before diagnosis, but these declined to 4.3 (0-50) after diagnosis. In the treatment for attacks, 82% of the patients were treated with the plasma-derived C1 inhibitor concentrate, and 69% of the patients reported experiencing a therapeutic effect. CONCLUSIONS There is a long gap between first attack and diagnosis of HAE, and the number of non-treated attacks is high in Japan. Steps are needed to improve the diagnostic and treatment environments to address these issues.
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Kaneyasu Y, Fujiwara H, Nishimura T, Sakurai H, Kazumoto T, Ikushima H, Uno T, Tokumaru S, Harima Y, Gomi H, Toita T, Kita M, Noda SE, Takahashi T, Kato S, Ohkawa A, Tozawa-Ono A, Ushijima H, Hasumi Y, Hirashima Y, Niibe Y, Nakagawa T, Akita T, Tanaka J, Ohno T. A multi-institutional survey of the quality of life after treatment for uterine cervical cancer: a comparison between radical radiotherapy and surgery in Japan. J Radiat Res 2021; 62:269-284. [PMID: 33415337 PMCID: PMC7973450 DOI: 10.1093/jrr/rraa107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 09/04/2020] [Indexed: 05/14/2023]
Abstract
This study aimed to research the post-treatment quality of life (QOL) between radiotherapy (RT)- and operation (OP)-treated early cervical cancer survivors, using separate questionnaires for physicians and patients. We administered an observational questionnaire to patients aged 20-70 years old with Stages IB1-IIB cervical cancer who had undergone RT or OP and without recurrence as outpatients for ≥6 months after treatment. We divided 100 registered patients equally into two treatment groups (n = 50 each). The average age was 53 and 44 years in the RT and OP groups, respectively. The RT group included 34 and 66% Stage I and II patients, respectively, whereas the OP group included 66 and 34% Stage I and II patients, respectively. The OP group included 58% of patients with postoperative RT. Combination chemotherapy was performed in 84 and 48% of patients in the RT and OP groups, respectively. On the physicians' questionnaire, we observed significant differences in bone marrow suppression (RT) and leg edema (OP). On the patients' questionnaire, significantly more patients had dysuria and leg edema in the OP group than in the RT group, and severe (Score 4-5) leg edema was significantly higher in the post-operative RT group than in the OP only group. The frequency of sexual intercourse decreased after treatment in both groups. On the patients' questionnaire, there were no significant differences between the two groups regarding sexual activity. These findings are useful to patients and physicians for shared decision-making in treatment choices. The guidance of everyday life and health information including sexual life after treatment is important.
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Affiliation(s)
- Yuko Kaneyasu
- Corresponding author. Department of Radiation Oncology, National Hospital Organization Fukuyama Medical Center, 4-14-17 Okinogami-cho, Fukuyama, Hiroshima, 720-8520 Japan. Tel: +81-84-922-0001; Fax: +81-84-931-3969;
| | - Hisaya Fujiwara
- Department of Obstetrics and Gynecology, Chugoku Rosai Hospital, Hiroshima, Japan
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | - Tetsuo Nishimura
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hideyuki Sakurai
- Department of Radiation Oncology, University of Tsukuba, Ibaraki, Japan
| | - Tomoko Kazumoto
- Department of Radiation Oncology, Fukaya Red Cross Hospital, Saitama, Japan
- Department of Radiation Oncology, Saitama Cancer Center, Saitama, Japan
| | - Hitoshi Ikushima
- Department of Therapeutic Radiology, Tokushima University Graduate School, Tokushima, Japan
| | - Takashi Uno
- Department of Diagnostic Radiology and Radiation Oncology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Sunao Tokumaru
- Hyogo Ion Beam Medical Center, Hyogo, Japan
- Department of Radiology, Saga University, Saga, Japan
| | - Yoko Harima
- Department of Radiology, Kansai Medical University, Osaka, Japan
| | - Hiromichi Gomi
- Radiation Oncology Center, St. Marianna University School of Medicine Hospital, Kanagawa, Japan
| | - Takafumi Toita
- Radiation Therapy Center, Okinawa Chubu Hospital, Okinawa, Japan
- Department of Radiology, Graduate School of Medical Science, University of the Ryukyus, Okinawa, Japan
| | - Midori Kita
- Department of Radiology, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Shin-ei Noda
- Department of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Takeo Takahashi
- Department of Radiation Oncology, Saitama Medical University Saitama Medical Center, Saitama, Japan
| | - Shingo Kato
- Department of Radiation Oncology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Ayako Ohkawa
- Department of Radiation Oncology, University of Tsukuba, Ibaraki, Japan
- Department of Radiation Oncology, National Hospital Organization Mito Medical Center, Ibaraki, Japan
| | - Akiko Tozawa-Ono
- Department of Gynecology, St. Marianna University School of Medicine, Toyoko Hospital, Tokyo, Japan
| | - Hiroki Ushijima
- Department of Radiation Oncology, Saitama Cancer Center, Saitama, Japan
| | - Yoko Hasumi
- Department of Obstetrics and Gynecology, Mitsui Memorial Hospital, Tokyo, Japan
- Department of Gynecology, Saitama Cancer Center, Saitama, Japan
| | | | - Yuzuru Niibe
- Department of Public Health, Kurume University School of Medtioicine, Fukuoka, Japan
| | - Tomio Nakagawa
- Department of Radiation Oncology, National Hospital Organization Fukuyama Medical Center, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsuya Ohno
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Gunma, Japan
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Tada T, Toyoda H, Kumada T, Kurisu A, Sugiyama A, Akita T, Ohisa M, Aikata H, Miki D, Chayama K, Tanaka J. Comparison of liver disease state progression in patients with eradication of versus persistent infection with hepatitis C virus: Markov chain analysis. J Viral Hepat 2021; 28:538-547. [PMID: 33215790 DOI: 10.1111/jvh.13444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/11/2020] [Accepted: 11/11/2020] [Indexed: 12/30/2022]
Abstract
To investigate the long-term prognosis of liver disease in patients with hepatitis C virus (HCV) eradication after antiviral therapy versus those with persistent HCV infection. Four hundred and eighty patients (5259 person-years [PYs]) who received interferon-based therapy and achieved sustained virologic response and 848 patients (3853 PYs) with persistent HCV infection were included. In the analysis of 1-year liver disease state transition probability matrices using Markov chain models, progression to cirrhosis from the chronic hepatitis state was observed (0.00%-0.63%) in patients with HCV eradication. Among patients with chronic hepatitis or cirrhosis and HCV eradication, hepatocellular carcinoma (HCC) development was observed in males aged ≥ 50 years (0.97%-1.96%) and females aged ≥ 60 years (0.26%-5.00%). Additionally, in patients with cirrhosis and HCV eradication, improvement to chronic hepatitis was also observed (4.94%-10.64%). Conversely, in patients with chronic hepatitis and persistent HCV infection, progression to cirrhosis was observed in males aged ≥ 30 years and female aged ≥ 40 years (0.44%-1.99%). In males aged ≥ 40 years and female aged ≥ 50 years with cirrhosis, the transition probability for HCC was relatively high (4.17%-14.02%). Under the assumption of either chronic hepatitis or cirrhosis at age 40 or 60 years as the starting condition for simulation over the next 30 or 40 years, respectively, the probability of HCC was higher in patients with persistent HCV infection than those with HCV eradication. In conclusion, HCV eradication can reduce the risk of developing cirrhosis or HCC in patients with chronic HCV infection.
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Affiliation(s)
- Toshifumi Tada
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Department of Internal Medicine, Japanese Red Cross Society Himeji Hospital, Himeji, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Takashi Kumada
- Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Masayuki Ohisa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
| | - Hiroshi Aikata
- Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Daiki Miki
- Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuaki Chayama
- Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Research Center for Hepatology and Gastroenterology, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Project Research Center for Epidemiology and Prevention of Viral Hepatitis and Hepatocellular Carcinoma, Hiroshima University, Hiroshima, Japan
- Research Center for Hepatology and Gastroenterology, Hiroshima University, Hiroshima, Japan
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Ko K, Nagashima S, E. B, Ouoba S, Akita T, Sugiyama A, Ohisa M, Sakaguchi T, Tahara H, Ohge H, Ohdan H, Kubo T, Kishita E, Kuwabara M, Takahashi K, Tanaka J. Molecular characterization and the mutation pattern of SARS-CoV-2 during first and second wave outbreaks in Hiroshima, Japan. PLoS One 2021; 16:e0246383. [PMID: 33544733 PMCID: PMC7864667 DOI: 10.1371/journal.pone.0246383] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/18/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND In this study, we performed molecular characterization of SARS-CoV-2 strains in Hiroshima and its mutation pattern between the first and second waves of the outbreak. METHOD A total of 55 nasal swab samples from the first wave in Hiroshima and 13 from the second wave were examined quantitatively by RT-qPCR and qualitatively by nested PCR using specific primers. Four samples from each wave underwent next-generation sequencing and phylogenetic tree analysis including controls and all sequences retrieved in Japan from GISAID and GenBank. Subsequently, mutations were examined. RESULTS Viral load ranged 7.85 × 101-1.42 × 108 copies/ml. Of 68 samples, one was Asian type-O, 65 were European type-GR, and 2 were undetectable. Phylogenetic tree analysis indicated that Japan was infected with various Asian strains (L, S, V, O) from January through April. By second week of March, European strains (G, GH, GR) had appeared, and GR strains became predominant after mid-March. The first case in Hiroshima was classified as Asian strain O, and the rest were GR strains. Then, second wave of GR strains appeared independently with 11-15 base mutations. Comparing the first- and second-wave GR strains, mutation rate was 1.17-1.36 × 10-3 base substitutions per site per year; in addition, amino acid changes occurred at S1361P and P3371S in ORF1a, A314V in ORF1b, and P151L in N. All seven GR strains were D614G variants with R202K and G203R mutations in N. A single-nucleotide insertion in ORF8 that causes a defect in ORF8 protein was found in one isolate (S66) from the second wave. CONCLUSION Our findings reveal the evolutionary hierarchy of SARS-CoV-2 in Japan. The predominant D614G variants and a new form of ORF8 deletion in Hiroshima provide the clue for role of viral factor in local outbreaks of SARS-CoV-2.
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Affiliation(s)
- Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Bunthen E.
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Payment Certification Agency, Ministry of Health, Phnom Penh, Cambodia
| | - Serge Ouoba
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Unité de Recherche Clinique de Nanoro (URCN), Nanoro, Burkina Faso
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masayuki Ohisa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takemasa Sakaguchi
- Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hidetoshi Tahara
- Department of Cellular and Molecular Biology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroki Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Eisaku Kishita
- Hiroshima Prefecture Health and Welfare Bureau, Hiroshima, Japan
| | - Masao Kuwabara
- Hiroshima Prefectural Center for Disease Control and Prevention, Hiroshima, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- * E-mail:
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Fujimura K, Sugiyama A, Akita T, Ohisa M, Nagashima S, Katayama K, Maeda R, Tanaka J. Screening for M-proteinemia consisting of monoclonal gammopathy of undetermined significance and multiple myeloma for 30 years among atomic bomb survivors in Hiroshima. Int J Hematol 2021; 113:576-585. [PMID: 33389658 DOI: 10.1007/s12185-020-03045-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 11/26/2022]
Abstract
Monoclonal gammopathy (M-proteinemia) is a premalignant plasma cell disorder. The prevalence of M-proteinemia increases with age and is affected by genetic or environmental factors. Atomic bomb (A-bomb) survivors in Hiroshima are in an age range when they are susceptible to M-proteinemia. The prevalence and incidence of M-proteinemia in Hiroshima A-bomb survivors were investigated for 30 years (1989-2018) to examine the influence of radiation exposure. The overall prevalence of M-proteinemia among 38,602 A-bomb survivors was 2.4%. M-proteinemia prevalence at age 70 years and monoclonal gammopathy of undetermined significance (MGUS) incidence were not associated with radiation exposure category. Males had a 2.30-fold higher prevalence and a 2.08-fold higher incidence than females. The risk of incidence for MGUS was 4.32-fold higher in persons aged < 10 years at the time of the A-bombing and 2.56-fold higher in those aged 10-19 years compared with those aged over 30 years. IgG type M-proteinemia was common and the IgM type developed 5-8 years later than other immunoglobulin types. Exposure to radiation was not clearly associated with the prevalence of M-proteinemia or incidence of MGUS in Hiroshima A-bomb survivors. However, males and those aged < 20 years at A-bombing had higher susceptibility to MGUS.
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Affiliation(s)
- Kingo Fujimura
- Department of Nursing, Yasuda Women's University, 6-13-1 Yasuhigashi Asaminami ward, Hiroshima City, 731-0153, Japan.
- Hiroshima Atomic Bomb Causality Council, Hiroshima City, Japan.
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Japan
| | - Masayuki Ohisa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Japan
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Japan
| | - Keiko Katayama
- Department of Nursing, Yasuda Women's University, 6-13-1 Yasuhigashi Asaminami ward, Hiroshima City, 731-0153, Japan
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Japan
| | - Ryo Maeda
- Hiroshima Atomic Bomb Causality Council, Hiroshima City, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Japan
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Honmyo N, Kobayashi T, Kuroda S, Oshita A, Onoe T, Kohashi T, Fukuda S, Ohmori I, Abe T, Imaoka Y, Akita T, Tanaka J, Ohdan H. A novel model for predicting posthepatectomy liver failure based on liver function and degree of liver resection in patients with hepatocellular carcinoma. HPB (Oxford) 2021; 23:134-143. [PMID: 32563594 DOI: 10.1016/j.hpb.2020.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/23/2020] [Accepted: 05/13/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND The permissible liver resection rate for preventing posthepatectomy liver failure (PHLF) remains unclear. We aimed to develop a novel PHLF-predicting model and to strategize hepatectomy for hepatocellular carcinoma (HCC). METHODS This retrospective study included 335 HCC patients who underwent anatomical hepatectomy at eight institutions between 2013 and 2017. Risk factors, including volume-associated liver-estimating parameters, for PHLF grade B-C were analyzed in a training set (n = 122) via multivariate analysis, and a PHLF prediction model was developed. The utility of the model was evaluated in a validation set (n = 213). RESULTS Our model was based on the three independent risk factors for PHLF identified in the training set: volume-associated indocyanine green retention rate at 15 min, platelet count, and prothrombin time index (the VIPP score). The areas under the receiver operating characteristic curve of the VIPP scores for severe PHLF in the training and validation sets were 0.864 and 0.794, respectively. In both sets, the VIPP score stratified patients at risk for severe PHLF, with a score of 3 (specificity, 0.92) indicating higher risk. CONCLUSION Our model facilitates the selection of the appropriate hepatectomy procedure by providing permissible liver resection rates based on VIPP scores.
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Affiliation(s)
- Naruhiko Honmyo
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan
| | - Tsuyoshi Kobayashi
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan.
| | - Shintaro Kuroda
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan
| | - Akihiko Oshita
- Department of Gastroenterological, Breast, and Transplant Surgery, Hiroshima Prefectural Hospital, 1-5-54 Ujinakanda, Minami-ku, Hiroshima, Japan
| | - Takashi Onoe
- Department of Surgery, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, 3-1 Aoyamacho, Kure, Japan
| | - Toshihiko Kohashi
- Department of Surgery, Hiroshima City Asa Citizens Hospital, 2-1-1 Kabeminami, Asakita-ku, Hiroshima, Japan
| | - Saburo Fukuda
- Department of Surgery, Chugoku Rosai Hospital, 1-5-1 Hirotagaya, Kure, Japan
| | - Ichiro Ohmori
- Department of Surgery, National Hospital Organization Higashihiroshima Medical Center, 513 Saijochojike, Higashihiroshima, Japan
| | - Tomoyuki Abe
- Department of Surgery, Onomichi General Hospital, 1-10-23 Hirahara, Onomichi, Japan
| | - Yasuhiro Imaoka
- Department of Surgery, National Hospital Organization Hiroshima-nishi Medical Center, 4-4-1 Kuba, Otake, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan
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Ko K, Nagashima S, Yamamoto C, Takahashi K, Matsuo J, Ohisa M, Akita T, Matyakubov J, Mirzaev U, Katayama K, Masaki T, Tanaka J. Eighteen-year follow-up cohort study on hepatitis B and C virus infections related long-term prognosis among hemodialysis patients in Hiroshima. J Med Virol 2020; 92:3436-3447. [PMID: 32579260 DOI: 10.1002/jmv.26215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/14/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022]
Abstract
This study aimed to investigate the prevalence trend of hepatitis B virus (HBV) and hepatitis C virus (HCV) infections and their genotype distribution among hemodialysis patients, determining their long-term prognosis and the risk factors to the mortality. This cohort study used both the medical data and the blood samples of hemodialysis patients at nine dialysis centers in Hiroshima from 1999 to 2017. Hepatitis B surface antigen (HBsAg) and anti-HCV were screened and then amplification was done to positive sera by polymerase chain reaction for genotyping. Data were employed for multiple regressions to determine the associated risk factors. A total of 3968 patients were subdivided into three groups: who started hemodialysis before 1990, during 1991 to 2001, and after 2002. The periodic prevalence of HBsAg decreased from 2.8% to 1.3% and that of anti-HCV from 33.3% to 9.5% in the three groups. By multiple regressions, the adjusted hazard ratio of diabetes mellitus (DM) ranges from 1.59 to 2.12 and that of HCV RNA positivity ranges from 1.18 to 1.48 (P < .05). Heart failure is the primary cause of death in all groups. Genotype C2 is predominant for HBV and genotype 1b is predominant for HCV. The decreasing trend of both HBV and HCV was found in the cohort. DM and HCV RNA were the significant risk factors leading to poor prognosis among hemodialysis patients. The similar genotype distribution of both HBV and HCV was found as general population. This alarmed to provide early diagnosis, prompt, and adequate treatment to HCV infection among hemodialysis patients.
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Affiliation(s)
- Ko Ko
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shintaro Nagashima
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Chikako Yamamoto
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuaki Takahashi
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Junko Matsuo
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masayuki Ohisa
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Jamshid Matyakubov
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Epidemiological Monitoring Unit, Khorezm Regional Center to fight againt HIV/AIDS, Khorezm Region, Urgench, Uzbekistan
| | - Ulugbek Mirzaev
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- Department of Hepatology, Scientific Research Institute of Virology, Ministry of Health of Uzbekistan, Tashkent, Uzbekistan
| | - Keiko Katayama
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takao Masaki
- Department of Nephrology, Hiroshima University Hospital, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Diseases Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Imano N, Nishibuchi I, Kawabata E, Kinugasa Y, Sakai C, Ishida M, Akita T, Kimura T, Murakami Y, Nagata Y, Tashiro S. Association Between Acute Toxicities Of Chemoradiotherapy And Chromosomal Aberrations In Peripheral Blood Lymphocytes In Esophageal Cancer Patients. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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