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Rahman MS, Shindo Y, Oka K, Ikeda W, Suzuki M. Live Cell Monitoring of Separase Activity, a Key Enzymatic Reaction for Chromosome Segregation, with Chimeric FRET-Based Molecular Sensor upon Cell Cycle Progression. Biosensors (Basel) 2024; 14:192. [PMID: 38667185 PMCID: PMC11048197 DOI: 10.3390/bios14040192] [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: 02/15/2024] [Revised: 03/29/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024]
Abstract
Separase is a key cysteine protease in the separation of sister chromatids through the digestion of the cohesin ring that inhibits chromosome segregation as a trigger of the metaphase-anaphase transition in eukaryotes. Its activity is highly regulated by binding with securin and cyclinB-CDK1 complex. These bindings prevent the proteolytic activity of separase until the onset of anaphase. Chromosome missegregation and aneuploidy are frequently observed in malignancies. However, there are some difficulties in biochemical examinations due to the instability of separase in vitro and the fact that few spatiotemporal resolution approaches exist for monitoring live separase activity throughout mitotic processes. Here, we have developed FRET-based molecular sensors, including GFP variants, with separase-cleavable sequences as donors and covalently attached fluorescent dyes as acceptor molecules. These are applicable to conventional live cell imaging and flow cytometric analysis because of efficient live cell uptake. We investigated the performance of equivalent molecular sensors, either localized or not localized inside the nucleus under cell cycle control, using flow cytometry. Synchronized cell cycle progression rendered significant separase activity detections in both molecular sensors. We obtained consistent outcomes with localized molecular sensor introduction and cell cycle control by fluorescent microscopic observations. We thus established live cell separase activity monitoring systems that can be used specifically or statistically, which could lead to the elucidation of separase properties in detail.
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Affiliation(s)
- Md. Shazadur Rahman
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; (M.S.R.); (W.I.)
- Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh
| | - Yutaka Shindo
- Department of Bioscience and informatics, Faculty of Science and Technology, Keio University, Yokohama 223-0061, Japan; (Y.S.); (K.O.)
| | - Kotaro Oka
- Department of Bioscience and informatics, Faculty of Science and Technology, Keio University, Yokohama 223-0061, Japan; (Y.S.); (K.O.)
- School of Frontier Engineering, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0373, Japan
| | - Wataru Ikeda
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; (M.S.R.); (W.I.)
| | - Miho Suzuki
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan; (M.S.R.); (W.I.)
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Kako J, Kajiwara K, Kobayashi M, Kanno Y, Morikawa M, Nakano K, Matsuda Y, Shimizu Y, Niino M, Suzuki M, Shimazu T. Applicability of Nursing Support for Patients With Terminal Cancer and Their Families: A Delphi Study. Am J Hosp Palliat Care 2024:10499091241245266. [PMID: 38580325 DOI: 10.1177/10499091241245266] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND This report investigates the applicability of nursing support for patients with cancer with a prognosis of months and weeks, and their families. OBJECTIVES To evaluate the applicability of nursing support for five symptoms (dyspnea, pain, nausea/vomiting, constipation, and delirium) in patients with cancer during the last weeks of life, and the caregiver burden on their families. DESIGN SETTING A Delphi study was used to determine the applicability of nursing support for patients with terminal cancer and their families. Eight experts in symptom palliation in Japan who have direct care or research experience with these populations were included. The Delphi method was used to assess nursing support types for prognoses of months and weeks. Consensus was defined as ≥70% agreement for either "high applicability" or "low applicability" of each support type. RESULTS A total of 50 nursing support types for 5 symptoms were evaluated as highly applicable for 92% (n = 46) of patients with cancer with a prognosis of months. For patients with cancer with a prognosis of weeks, 78% (n = 39) of the nursing support was rated as highly applicable. For both prognosis groups, all nursing support (n = 6) for caregiver burden was highly applicable. CONCLUSION Applicability ratings of nursing support may be influenced by a high degree of invasiveness, accessibility of knowledge and information, and high expectations of effectiveness. Future studies are needed to verify the effectiveness of nursing support evaluated as highly applicable to patients with cancer during the last few months and weeks of life.
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Affiliation(s)
- Jun Kako
- Graduate School of Medicine, Mie University, Tsu, Japan
| | - Kohei Kajiwara
- Japanese Red Cross Kyushu International College of Nursing, Munakata, Japan
| | - Masamitsu Kobayashi
- Graduate of Nursing Science, St. Luke's International University, Tokyo, Japan
| | - Yusuke Kanno
- Nursing Science, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Kimiko Nakano
- Clinical Research Center for Developmental Therapeutics, Tokushima University Hospital, Tokushima, Japan
| | - Yoshinobu Matsuda
- Department of Psychosomatic Internal Medicine, NHO Kinki Chuo Chest Medical Center, Sakai, Japan
| | - Yoichi Shimizu
- School of Nursing, National College of Nursing, Kiyose, Japan
| | - Mariko Niino
- Center for Cancer Registries, National Cancer Center Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Miho Suzuki
- Faculty of Nursing and Medical Care, Keio University, Fujisawa, Japan
| | - Taichi Shimazu
- Division of Behavioral Sciences, National Cancer Center Institute for Cancer Control, National Cancer Center, Tokyo, Japan
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Suzuki M, Suzuki N, Sakurada K, Tsuchiya N, Ueno Y, Konta T. Insomnia symptoms and related factors in a community-based population: The Yamagata Cohort study. Heliyon 2024; 10:e28228. [PMID: 38532993 PMCID: PMC10963640 DOI: 10.1016/j.heliyon.2024.e28228] [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: 09/27/2023] [Revised: 03/09/2024] [Accepted: 03/13/2024] [Indexed: 03/28/2024] Open
Abstract
Objective/background Insomnia is prevalent and is a risk factor for the development of lifestyle-related diseases and early death. To improve insomnia, it is necessary to identify the factors that affect it. This study investigated the associations between insomnia symptoms and mental, physical, and environmental factors in the general Japanese population. Patients/methods The study participants were 7,873 individuals who responded to the Health and Lifestyle Survey questionnaire that included sleep-related items between December 2021 and March 2022. Insomnia symptoms were defined as a score of 6 or higher on the Athens Insomnia Scale (AIS). A multivariate logistic regression analysis was performed to identify factors independently associated with insomnia symptoms. Results Of all subjects, 23.4% had insomnia symptoms. Factors associated with insomnia symptoms were older age, female sex, very difficult living conditions on current income, pain/discomfort, anxiety, lack of happiness, frequent nocturia, long duration from bathing time to bedtime, bedroom lighting, and short walking duration. The subgroup analysis showed stronger associations between walking time in men, higher body mass index in women, time from bathing time to bedtime, and daily walking duration in older adults. Conclusions Insomnia symptoms were common in community-based populations and were independently associated with three different factor groups including physical, psychological, and environmental factors. Improvements in insomnia symptoms require appropriate practical support tailored to an individual's situation.
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Affiliation(s)
- Miho Suzuki
- Department of Public Health and Hygiene, Yamagata University Graduate School of Medical Science, Yamagata, Japan
- Department of Health and Nutrition, Yamagata Prefectural Yonezawa University of Nutrition Sciences, Yonezawa, Japan
| | - Natsuko Suzuki
- Department of Public Health and Hygiene, Yamagata University Graduate School of Medical Science, Yamagata, Japan
| | - Kaori Sakurada
- Department of Fundamental Nursing, Yamagata University Graduate School of Nursing, Yamagata, Japan
| | - Norihiko Tsuchiya
- Department of Urology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yoshiyuki Ueno
- Department of Gastroenterology, Yamagata University Faculty of Medicine,Yamagata,Japan
| | - Tsuneo Konta
- Department of Public Health and Hygiene, Yamagata University Graduate School of Medical Science, Yamagata, Japan
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Somiya A, Tsuda H, Tsugeno E, Nakamura Y, Kuroyanagi M, Araki H, Masahashi Y, Suzuki M, Fukuhara N, Ito Y, Tezuka A, Ando T, Mizuno K. Prevalence, Risk Factors, and Perinatal Outcomes of Velamentous Umbilical Cord Insertion in Twin Pregnancies: A Single-Center Retrospective Study. J Clin Med 2024; 13:1396. [PMID: 38592212 PMCID: PMC10932138 DOI: 10.3390/jcm13051396] [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: 02/06/2024] [Revised: 02/25/2024] [Accepted: 02/25/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND The effect of velamentous cord insertion (VCI) on perinatal outcomes in twin pregnancies is unclear due to conflicting findings. This retrospective study aimed to examine VCI prevalence and related risk factors in twin pregnancies and its association with adverse perinatal outcomes. METHODS Women with twin pregnancies who delivered between January 2012 and December 2021 in a single tertiary hospital were included. The participants were divided into dichorionic (DC) and monochorionic diamniotic (MCDA) groups, and their maternal and fetal characteristics and VCI rates were compared. Logistic regression models were used to identify risk factors for VCI and VCI-related perinatal outcomes. RESULTS Among the 694 twin pregnancies included in this study, the VCI rate was significantly higher in MCDA than in DC twins. Body mass index and MCDA twins were significant risk factors for VCI, whereas assisted reproductive technology pregnancy was a significant protective factor against VCI. In DC twins, VCI did not affect perinatal outcomes. In MCDA twins, VCI was a significant risk factor for fetal growth restriction, twin-to-twin transfusion syndrome, and preterm birth at <36 weeks. CONCLUSIONS VCI was a prominent risk factor for adverse perinatal outcomes only in MCDA twins. Antenatal sonographic assessment of the umbilical cord insertion site would be beneficial.
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Affiliation(s)
| | - Hiroyuki Tsuda
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, Nagoya 453-85511, Japan; (A.S.); (E.T.); (Y.N.); (M.K.); (H.A.); (Y.M.); (M.S.); (N.F.); (Y.I.); (A.T.); (T.A.); (K.M.)
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Kitabayashi M, Umetsu S, Suzuki M, Konta T. Relationship between food group-specific intake and depression among local government employees in Japan. BMC Nutr 2024; 10:21. [PMID: 38291535 PMCID: PMC10826071 DOI: 10.1186/s40795-024-00830-4] [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: 07/19/2023] [Accepted: 01/22/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND We aimed to examine the relationship between food group-specific intake and depression among workers in Japan. METHODS A questionnaire survey was administered to 568 workers in 2020; 503 workers responded and 423 were included in the study. Information on sex, age, body mass index, overtime hours, sleep duration, marital status, employment position, exercise habits, smoking status, incidence of depression, and intake of energy, proteins, lipids, carbohydrates, alcohol, and specific food groups were collected. The Center for Epidemiologic Studies Depression Scale was used to assess the presence and severity of depression. Food group-specific intake was adjusted for energy intake using the residual method and classified into low, moderate, and high by sex. Logistic regression was used to examine the odds ratios (ORs) and trends according to sex, with the presence/absence of depression as the dependent variable and food group-specific intake as the independent variable. RESULTS Men in the eggs low-intake, and women in the other vegetables low- and moderate-intake and eggs moderate-intake groups had significantly higher adjusted ORs (aORs) for depression. Additionally, a dose-response relationship was observed, where the OR for depression was significantly higher in men when the intake of eggs was low (p for trend = 0.024) and in women when the intakes of other vegetables (p for trend = 0.011) and eggs (p for trend = 0.032) were low. CONCLUSIONS The intake of eggs in men and eggs and vegetables in women may be related to depression.
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Affiliation(s)
- Makiko Kitabayashi
- Department of Health and Nutrition, Yamagata Prefectural Yonezawa University of Nutrition Sciences, Yonezawa, Yamagata, Japan.
- Department of Public Health and Hygiene, Yamagata University Graduate School of Medical Sciences, Yamagata, Yamagata, Japan.
| | - Shoko Umetsu
- Department of Health and Nutrition, Yamagata Prefectural Yonezawa University of Nutrition Sciences, Yonezawa, Yamagata, Japan
| | - Miho Suzuki
- Department of Health and Nutrition, Yamagata Prefectural Yonezawa University of Nutrition Sciences, Yonezawa, Yamagata, Japan
- Department of Public Health and Hygiene, Yamagata University Graduate School of Medical Sciences, Yamagata, Yamagata, Japan
| | - Tsuneo Konta
- Department of Public Health and Hygiene, Yamagata University Graduate School of Medical Sciences, Yamagata, Yamagata, Japan
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Miwa T, Mori E, Sekine R, Kimura Y, Kobayashi M, Shiga H, Tsuzuki K, Suzuki M, Kondo K, Suzaki I, Inokuchi G, Aiba T, Chujo K, Yagi-Nakanishi S, Tsukatani T, Nakanishi H, Nishijo M, Iinuma Y, Yokoyama A. Olfactory and taste dysfunctions caused by COVID-19: a nationwide study. Rhinology 2023; 61:552-560. [PMID: 37690065 DOI: 10.4193/rhin23.034] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
BACKGROUND Olfactory dysfunctions (OD) and taste dysfunctions (TD) are widely recognized as characteristic symptoms of COVID-19; however, the frequency and mode of occurrence has varied depending on the viral mutation. The prevalence and characteristics of OD/TD in Japan have not been definitively investigated. The purpose of this study is to assess the prevalence of OD/TD in Japan during the Alpha variant epidemic, and measure symptom prolongation at 6 months and 1 year later following initial infection. METHODS Patients treated for COVID-19 between February to May 2021 were evaluated for OD/TD symptoms and provided with a QOL questionnaire. Olfactory tests and taste tests were performed using Open Essence and Taste Strips, respectively. RESULTS Among the 251 COVID-19 patients who participated, 119 underwent both olfactory and taste tests. Prevalence of subjective OD and TD at the time of survey was 57.8% and 40.2%, respectively. After 12 months, the prevalence fell to 5.8% for OD and 3.5% for TD. Among the OD/TD patients, 36.6% experienced parosmia, and 55.4% experienced parageusia. Prevalence of parosmia and parageusia was higher at 6 and 12 months than at the time of survey. Patients with long-lasting disease reported qualitative dysfunctions and scored significantly higher in food-related QOL problems. Most patients who were aware of their hyposmia had low scores on the olfactory test (83.1%). In contrast, only 26.7% of patients who were aware of their hypogeusia had low scores on the taste test. CONCLUSIONS The prevalence of COVID-19-related OD and TD at the time of survey was 57.8% and 40.2%, respectively. Subjective symptoms of OD and TD persisted for one year in 5.8% and 3.5% of patients, respectively. More than half of the patients with OD or TD complained of qualitative dysfunction and a decrease in their QOL related to eating and drinking. Most patients with TD did not have true TD, but rather developed flavour disorders associated with OD. This conclusion is supported by the finding that patients with subjective OD had low scores on the olfactory test, whereas most patients with subjective TD had normal scores on the taste test.
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Affiliation(s)
- T Miwa
- Department of Otorhinolaryngology, Kanazawa Medical University, Ishikawa, Japan
| | - E Mori
- Department of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan
| | - R Sekine
- Department of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan
| | - Y Kimura
- Department of Otolaryngology, Tokyo Metropolitan Ebara Hospital, Tokyo, Japan
| | - M Kobayashi
- Department of Otorhinolaryngology, Head and Neck Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - H Shiga
- Department of Otorhinolaryngology, Kanazawa Medical University, Ishikawa, Japan
| | - K Tsuzuki
- Department of Otorhinolaryngology, Head and Neck Surgery, Hyogo Medical University, Hyogo, Japan
| | - M Suzuki
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University, Aichi, Japan
| | - K Kondo
- Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - I Suzaki
- Department of Otorhinolaryngology, Head and Neck Surgery, School of Medicine, Showa University, Tokyo, Japan
| | - G Inokuchi
- Department of Otolarygology, Head and Neck Surgery, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - T Aiba
- Department of Otorhinolaryngology, Osaka City Juso Hospital, Osaka, Japan
| | - K Chujo
- Department of Otorhinolaryngology, St. Luke s International Hospital, Tokyo, Japan
| | - S Yagi-Nakanishi
- Department of Otorhinolaryngology, Kanazawa Municipal Hospital, Ishikawa, Japan
| | - T Tsukatani
- Department of Otorhinolaryngology, Public Central Hospital of Matto Ishikawa, Ishikawa, Japan
| | - H Nakanishi
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University, Aichi, Japan
| | - M Nishijo
- Department of Epidemiology and Public Health, Kanazawa Medical University, Ishikawa, Japan
| | - Y Iinuma
- Department of Infectious Diseases, Kanazawa Medical University, Ishikawa, Japan
| | - A Yokoyama
- Department of Respiratory Medicine and Allergology, Kochi Medical School, Kochi University, Kochi, Japan
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Suzuki M, Watari T. Blue toe syndrome caused by spontaneous cholesterol embolization syndrome. QJM 2023; 116:936-937. [PMID: 37471693 DOI: 10.1093/qjmed/hcad169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Indexed: 07/22/2023] Open
Affiliation(s)
- M Suzuki
- Department of General Internal Medicine, National Hospital Organization Sendai Medical Center, Miyagi, Japan
| | - T Watari
- Department of Internal Medicine, University of Michigan Medical School, MI, USA
- General Medicine Centre, Shimane University Hospital, Shimane, Japan
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Kawamura Y, Itou H, Kida A, Sunakawa H, Suzuki M, Kawamura K. Percutaneous shunt vessel embolisation with Amplatzer vascular plugs II and IV in the treatment of dogs with splenophrenic shunts: four cases (2019-2022). J Small Anim Pract 2023; 64:710-717. [PMID: 37817531 DOI: 10.1111/jsap.13660] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 04/23/2023] [Accepted: 06/10/2023] [Indexed: 10/12/2023]
Abstract
OBJECTIVES To describe the treatment of four dogs with splenophrenic shunts using percutaneous shunting vessel embolisation with Amplatzer vascular plugs II and IV and provide information on their clinical outcomes. MATERIALS AND METHODS Dogs with splenophrenic shunts treated at a veterinary hospital from January 2019 to December 2022 were identified through a medical record search. RESULTS Six dogs with splenophrenic shunts were identified. Two dogs were excluded because they were treated with laparoscopic surgery. Four underwent percutaneous shunting vessel embolization with Amplatzer vascular plugs and were included in the case series. A sheath was placed in the left external jugular vein and a balloon catheter was advanced to the shunting vessel under fluoroscopy. Portal vein pressure was confirmed to be within an acceptable range during temporary balloon occlusion. Based on preoperative CT angiography and intraoperative contrast examination, Amplatzer vascular plugs II were selected for two dogs and IV were selected for two dogs. Under fluoroscopy, the plug was deployed into the shunting vessel, and angiography confirmed occlusion. In all cases, the increase in portal pressure after temporary occlusion was within the acceptable range, and complete occlusion of blood flow was possible with a single plug. There were no major procedure-related complications. No dogs developed post-ligation seizures or signs of portal hypertension. In addition, improvements in ammonia values were observed in all cases. CLINICAL SIGNIFICANCE Percutaneous splenophrenic shunt embolisation using Amplatzer vascular plugs II and IV is technically feasible in dogs, and assessed by intra-procedure angiography, a single plug completely obstructed blood flow in all dogs. Based on the literature search, this is the first report describing Amplatzer vascular plugs for the treatment of splenophrenic shunts.
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Affiliation(s)
- Y Kawamura
- Kawamura Animal Hospital, 1-1-6 Kamikido, Higashi-ku, Niigata City, Niigata, 950-0891, Japan
| | - H Itou
- Kawamura Animal Hospital, 1-1-6 Kamikido, Higashi-ku, Niigata City, Niigata, 950-0891, Japan
| | - A Kida
- Kawamura Animal Hospital, 1-1-6 Kamikido, Higashi-ku, Niigata City, Niigata, 950-0891, Japan
| | - H Sunakawa
- Kawamura Animal Hospital, 1-1-6 Kamikido, Higashi-ku, Niigata City, Niigata, 950-0891, Japan
| | - M Suzuki
- Kawamura Animal Hospital, 1-1-6 Kamikido, Higashi-ku, Niigata City, Niigata, 950-0891, Japan
| | - K Kawamura
- Kawamura Animal Hospital, 1-1-6 Kamikido, Higashi-ku, Niigata City, Niigata, 950-0891, Japan
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Tahara-Sasagawa E, Mochida K, Sadamori T, Suzuki M, Guerrero C, Haruna M, Misago C. Lessons from the "Humanization of Childbirth" Projects: Qualitative analysis of seven projects funded by the Japan International Cooperation Agency. Glob Health Med 2023; 5:301-305. [PMID: 37908509 PMCID: PMC10615027 DOI: 10.35772/ghm.2023.01054] [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: 05/01/2023] [Revised: 08/11/2023] [Accepted: 08/24/2023] [Indexed: 11/02/2023]
Abstract
The "Humanization of Childbirth" Project is one of the various maternity care models that respect women and their newborn children. For more than a quarter of a century, the Japan International Cooperation Agency (JICA) has been implementing technical cooperation projects worldwide that place the humanization of childbirth at the center of the concept. By reviewing the project reports, the following 11 key processes were found for the formulation and implementation of future projects for the humanized maternity care: i) project-finding/exploration of unmet needs, ii) identification of local key persons, iii) organization of a project team and a back-up committee, iv) development of an action plan, v) sharing of concepts, vi) development of local leadership, vii) organization of infrastructure, viii) final evaluation and wrap-up seminar, ix) ensuring sustainability, x) development of younger generation experts, and xi) sustainable and autonomous action.
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Affiliation(s)
- Emi Tahara-Sasagawa
- Graduate School of Nursing, Japanese Red Cross College of Nursing, Tokyo, Japan
- Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | | | | | | | - Megumi Haruna
- Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Chizuru Misago
- Department of International and Cultural Study, Tsuda University, Tokyo, Japan
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Kako J, Morikawa M, Kobayashi M, Kanno Y, Kajiwara K, Nakano K, Matsuda Y, Shimizu Y, Hori M, Niino M, Suzuki M, Shimazu T. Nursing support for breathlessness in patients with cancer: a scoping review. BMJ Open 2023; 13:e075024. [PMID: 37827741 PMCID: PMC10582874 DOI: 10.1136/bmjopen-2023-075024] [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: 04/24/2023] [Accepted: 09/25/2023] [Indexed: 10/14/2023] Open
Abstract
OBJECTIVE To identify nursing support provided for the relief of breathlessness in patients with cancer. DESIGN A scoping review following a standard framework proposed by Arksey and O'Malley. STUDY SELECTION Electronic databases (PubMed, CINAHL, CENTRAL and Ichushi-Web of the Japan Medical Abstract Society Databases) were searched from inception to 31 January 2022. Studies reporting on patients with cancer (aged ≥18 years), intervention for relief from breathlessness, nursing support and quantitatively assessed breathlessness using a scale were included. RESULTS Overall, 2629 articles were screened, and 27 were finally included. Results of the qualitative thematic analysis were categorised into 12 nursing support components: fan therapy, nurse-led intervention, multidisciplinary intervention, psychoeducational programme, breathing technique, walking therapy, inspiratory muscle training, respiratory rehabilitation, yoga, acupuncture, guided imagery and abdominal massage. CONCLUSIONS We identified 12 components of nursing support for breathlessness in patients with cancer. The study results may be useful to understand the actual state of nursing support provided for breathlessness in patients with terminal cancer and to consider possible support that can be implemented.
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Affiliation(s)
- Jun Kako
- Graduate School of Medicine, Mie University, Tsu, Mie, Japan
| | - Miharu Morikawa
- Palliative Nursing, Course of Advanced Nursing Sciences, Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Masamitsu Kobayashi
- Graduate of Nursing Science, St Luke's International University, Chuo-ku, Tokyo, Japan
| | - Yusuke Kanno
- Graduate School of Health Care Science, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Kohei Kajiwara
- Faculty of Nursing, Japanese Red Cross Kyushu International College of Nursing, Munakata, Fukuoka, Japan
| | - Kimiko Nakano
- Clinical Research Center for Developmental Therapeutics, Tokushima University Hospital, Kuramoto-cho, Tokushima, Japan
| | - Yoshinobu Matsuda
- Department of Psychosomatic Internal Medicine, National Hospital Organization Kinki-Chuo Chest Medical Center, Sakai, Osaka, Japan
| | - Yoichi Shimizu
- School of Nursing, National College of Nursing, Kiyose, Tokyo, Japan
| | - Megumi Hori
- Faculty of Nursing, University of Shizuoka, Suruga-ku, Shizuoka, Japan
| | - Mariko Niino
- Center for Cancer Registries, Institute for Cancer Control, National Cancer Center Japan, Chuo-ku, Tokyo, Japan
| | - Miho Suzuki
- Faculty of Nursing and Medical Care, Keio University-Shonan Fujisawa Campus, Fujisawa, Kanagawa, Japan
| | - Taichi Shimazu
- Division of Behavioral Sciences, National Cancer Center Institute for Cancer Control, Research Center for Cancer Prevention and Screening, National Cancer Center, Chuo-ku, Tokyo, Japan
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Ishimaru Y, Moteki T, Suzuki M, Koyama T, Matsushita T, Hatano K, Matsuoka K. Preparation of a Water-Soluble Glycopolymer Bearing Porphyrin Skeletons and Its Biological Properties. ACS Omega 2023; 8:37451-37460. [PMID: 37841131 PMCID: PMC10568584 DOI: 10.1021/acsomega.3c05581] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 08/29/2023] [Indexed: 10/17/2023]
Abstract
A known tetraphenyl porphyrin (TPP) having an amino functional group [5-(4-aminophenyl)-10,15,20-(triphenyl)porphyrin] was converted into the corresponding monomer by means of condensation with acryloyl chloride. Simple radical polymerization of the porphyrin monomer and a glycosyl monomer in the presence of acrylamide as a regulator monomer in order to avoid steric interference gave a water-soluble glycopolymer bearing porphyrin moieties. Spectroscopic analyses suggested incorporation of porphyrin moieties in the glycopolymer. The physical properties of the water-soluble glycopolymer bearing porphyrin moieties were examined in aqueous media, and the results also indicated the incorporation of TPP moieties in the polymer. Uptake of the polymer into HeLa cells was observed, and the cytotoxicity of the polymer was confirmed by microscopic analyses. The glycopolymer bearing porphyrin moieties is promising not only for photodynamic therapy but also as an anti-cancer reagent.
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Affiliation(s)
- Yoshihiro Ishimaru
- Area
for Molecular Function, Division of Material Science, Graduate School
of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Tomohide Moteki
- Area
for Molecular Function, Division of Material Science, Graduate School
of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Miho Suzuki
- Area
for Molecular Function, Division of Material Science, Graduate School
of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Tetsuo Koyama
- Area
for Molecular Function, Division of Material Science, Graduate School
of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Takahiko Matsushita
- Area
for Molecular Function, Division of Material Science, Graduate School
of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
- Medical
Innovation Research Unit (MiU), Advanced Institute of Innovative Technology
(AIIT), Saitama University, Sakura, Saitama 338-8570, Japan
- Health
Sciences and Technology Research Area, Strategic Research Center, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Ken Hatano
- Area
for Molecular Function, Division of Material Science, Graduate School
of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
- Medical
Innovation Research Unit (MiU), Advanced Institute of Innovative Technology
(AIIT), Saitama University, Sakura, Saitama 338-8570, Japan
- Health
Sciences and Technology Research Area, Strategic Research Center, Saitama University, Sakura, Saitama 338-8570, Japan
| | - Koji Matsuoka
- Area
for Molecular Function, Division of Material Science, Graduate School
of Science and Engineering, Saitama University, Sakura, Saitama 338-8570, Japan
- Medical
Innovation Research Unit (MiU), Advanced Institute of Innovative Technology
(AIIT), Saitama University, Sakura, Saitama 338-8570, Japan
- Health
Sciences and Technology Research Area, Strategic Research Center, Saitama University, Sakura, Saitama 338-8570, Japan
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12
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Suzuki M, Miyano Y, Sato F, Shinkai K. Surface Properties of Resin Composites and CAD/CAM Blocks After Simulated Toothbrushing. Oper Dent 2023; 48:575-587. [PMID: 37635455 DOI: 10.2341/22-123-l] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2023] [Indexed: 08/29/2023]
Abstract
OBJECTIVES This study aimed to evaluate the surface gloss, surface roughness, and color change of restorative materials after a three-body wear abrasion. METHODS AND MATERIALS Four resin composites with different filler particle size (Gracefil Flo [GFF, 0.7 μm], Gracefil LoFlo [GFL, 0.25 μm], Gracefil ZeroFlo [GFZ, 0.15 μm], and Gracefil Putty [GFP, 0.3 μm]), two CAD/CAM resin composite blocks with different filler particle size (Cerasmart 300 [CS3, 0.7 μm] and Cerasmart Prime [CSP, 0.3 μm], GC), and one CAD/CAM lithium disilicate glass-ceramic block (Initial LiSi Block [ILS], GC) as a control were evaluated. Twenty slab-shaped specimens were obtained from each material. Ten specimens were subjected to 80,000 toothbrushing strokes and measured for surface gloss (Gloss Unit, GU), surface roughness (Ra, μm), and color (L*, a*, and b* values) before toothbrushing and at every 20,000 strokes. Color differences (ΔL*, Δa*, Δb*, and ΔE00) before and after toothbrushing were calculated. After 80,000 strokes, abraded surfaces were observed using scanning electron microscopy. The other 10 specimens were measured for Vickers microhardness (VHN). RESULTS After 80,000 toothbrushing strokes, the mean GU ranged from 60.43 to 16.12 (the highest for ILS and lowest for GFL), and the mean Ra ranged from 0.079 to 4.085 (the lowest for ILS and highest for GFL). At all measuring stages, the calculated ΔE00 values ranged from 0.31 to 0.92 for all materials. The mean VHN ranged from 632.34 to 39.08 (the highest for ILS and lowest for GFZ). The resin composite containing the largest filler particle (GFF) showed significantly lower Ra and higher VHN than other resin composites (GFL, GFZ, and GFP). The CAD/CAM resin composite block containing a smaller filler particle (CSP) retained significantly higher GU than that containing a larger filler particle (CS3). A negative correlation between GU and Ra was detected. CONCLUSIONS Based on the findings, toothbrush abrasion induced a decrease in GU and an increase in Ra for all resin-based materials tested. Resin-based materials with larger filler size tended to show lower Ra, while resin-based materials with smaller filler size tended to show a smaller reduction in GU. These were more pronounced for light-cure resin composites than for resin composite blocks for CAD/CAM.
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Affiliation(s)
- M Suzuki
- *Masaya Suzuki, DDS, PhD, Department of Operative Dentistry, The Nippon Dental University School of Life Dentistry at Niigata
| | - Y Miyano
- Yuko Miyano, DDS, Advanced Operative Dentistry-Endodontics, The Nippon Dental University Graduate School of Life Dentistry at Niigata
| | - F Sato
- Fumiaki Sato, DDS, PhD, Department of Operative Dentistry, The Nippon Dental University School of Life Dentistry at Niigata
| | - K Shinkai
- Koichi Shinkai, DDS, PhD, Department of Operative Dentistry, The Nippon Dental University School of Life Dentistry at Niigata
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Nakamura Y, Tsuda H, Masahashi Y, Nakamura T, Suzuki M, Fukuhara N, Ito Y, Tezuka A, Ando T, Mizuno K. Impact of the interpregnancy interval after cesarean delivery on subsequent perinatal risks: a retrospective study. Arch Gynecol Obstet 2023; 308:479-485. [PMID: 35984489 DOI: 10.1007/s00404-022-06651-9] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/28/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE To assess the impact of the interpregnancy interval (IPI) after cesarean delivery on the risks of adverse perinatal events during subsequent pregnancies. METHODS We retrospectively examined perinatal outcomes of subsequent pregnancies of women whose most recent birth experience involved cesarean delivery at our hospital between January 2014 and December 2019. IPI was defined as the time between live birth and subsequent conception. Three IPI groups: < 18 months, 18-60 months, and > 60 months, were assessed. The risks of preterm birth, preeclampsia, placenta previa, placental abruption, fetal growth restriction, and successful vaginal birth were compared among the three IPI groups using uni- and multivariate analyses. RESULTS We registered 592 births after cesarean delivery: 178, 288, and 126 in the IPI < 18 months, 18-60 months, and > 60 months groups, respectively. The groups did not differ significantly regarding perinatal outcomes. The multivariate analysis revealed no significant differences in the risks of adverse perinatal outcomes among all groups. The odds ratios (ORs) for preterm birth at < 37 weeks of gestation were 1.24 and 1.64 for those in the < 18 months and > 60 months groups, respectively (P = 0.362 and P = 0.055, respectively). The groups did not differ significantly regarding vaginal birth success rate (ORs 1.72 for the < 18 months group, 0.49 for the > 60 months group; P = 0.486 and P = 0.446, respectively). CONCLUSION After cesarean delivery, IPIs shorter than 18 months and longer than 60 months do not significantly impact the risks of adverse perinatal outcomes or successful vaginal birth compared with IPIs of 18-60 months.
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Affiliation(s)
- Yumi Nakamura
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Hiroyuki Tsuda
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan.
| | - Yoshiki Masahashi
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Takuto Nakamura
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Miho Suzuki
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Nobuhiko Fukuhara
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Yumiko Ito
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Atsuko Tezuka
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Tomoko Ando
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
| | - Kimio Mizuno
- Department of Obstetrics and Gynecology, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, 3-35 Michishita-cho, Nakamura-ku, Nagoya, 453-8511, Japan
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Muraoka A, Suzuki M, Hamaguchi T, Watanabe S, Iijima K, Murofushi Y, Shinjo K, Osuka S, Hariyama Y, Ito M, Ohno K, Kiyono T, Kyo S, Iwase A, Kikkawa F, Kajiyama H, Kondo Y. Fusobacterium infection facilitates the development of endometriosis through the phenotypic transition of endometrial fibroblasts. Sci Transl Med 2023; 15:eadd1531. [PMID: 37315109 DOI: 10.1126/scitranslmed.add1531] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 05/24/2023] [Indexed: 06/16/2023]
Abstract
Retrograde menstruation is a widely accepted cause of endometriosis. However, not all women who experience retrograde menstruation develop endometriosis, and the mechanisms underlying these observations are not yet understood. Here, we demonstrated a pathogenic role of Fusobacterium in the formation of ovarian endometriosis. In a cohort of women, 64% of patients with endometriosis but <10% of controls were found to have Fusobacterium infiltration in the endometrium. Immunohistochemical and biochemical analyses revealed that activated transforming growth factor-β (TGF-β) signaling resulting from Fusobacterium infection of endometrial cells led to the transition from quiescent fibroblasts to transgelin (TAGLN)-positive myofibroblasts, which gained the ability to proliferate, adhere, and migrate in vitro. Fusobacterium inoculation in a syngeneic mouse model of endometriosis resulted in a marked increase in TAGLN-positive myofibroblasts and increased number and weight of endometriotic lesions. Furthermore, antibiotic treatment largely prevented establishment of endometriosis and reduced the number and weight of established endometriotic lesions in the mouse model. Our data support a mechanism for the pathogenesis of endometriosis via Fusobacterium infection and suggest that eradication of this bacterium could be an approach to treat endometriosis.
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Affiliation(s)
- Ayako Muraoka
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Miho Suzuki
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Tomonari Hamaguchi
- Division of Neurogenetics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Shinya Watanabe
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Kenta Iijima
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yoshiteru Murofushi
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Keiko Shinjo
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Satoko Osuka
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yumi Hariyama
- Department of Obstetrics and Gynecology, Toyota Kosei Hospital, 500-1, Ihohara, Zyosui-cho, Toyota 470-0396, Japan
| | - Mikako Ito
- Division of Neurogenetics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Kinji Ohno
- Division of Neurogenetics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Tohru Kiyono
- Project for Prevention of HPV-related Cancer, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwanoha 6-5-1, Kashiwa 277-8577, Japan
| | - Satoru Kyo
- Department of Obstetrics and Gynecology, Shimane University Faculty of Medicine, 89-1 Enya-Cho, Izumo 693-8501, Japan
| | - Akira Iwase
- Department of Obstetrics and Gynecology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi 371-8511, Japan
| | - Fumitaka Kikkawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yutaka Kondo
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
- Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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Yoshiyasu N, Matsuki R, Sato M, Urushiyama H, Toda E, Terasaki Y, Suzuki M, Shinozaki-Ushiku A, Terashima Y, Nakajima J. Anti-Alcohol Drug to Target Macrophages Attenuates Acute Rejection in Rat Lung Allografts. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1483] [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: 04/05/2023] Open
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16
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Nomura S, Eguchi A, Ghaznavi C, Yamasaki L, Rauniyar SK, Tanoue Y, Kawashima T, Yoneoka D, Kohsaka S, Suzuki M, Hashizume M. Changes in cerebrovascular disease-related deaths and their location during the COVID-19 pandemic in Japan. Public Health 2023; 218:176-179. [PMID: 37060737 PMCID: PMC10011032 DOI: 10.1016/j.puhe.2023.03.006] [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: 01/07/2023] [Revised: 02/23/2023] [Accepted: 03/09/2023] [Indexed: 03/15/2023]
Abstract
Objective The COVID-19 pandemic placed an enormous strain on healthcare systems and raised concerns for delays in the management of patients with acute cerebrovascular events. In this study, we investigated cerebrovascular excess deaths in Japan. Study design Vital mortality statistics from January 2012 to May 2022 were obtained from the Japanese Ministry of Health, Labour and Welfare. Methods Using quasi-Poisson regression models, we estimated the expected weekly number of cerebrovascular deaths in Japan from January 2020 through May 2022 by place of death. Estimates were calculated for deaths in all locations, as well as for deaths in hospitals, in geriatric health service facilities, and at home. The age subgroups of ≥75 and <75 years were also considered. Weeks with a statistically significant excess of cerebrovascular deaths were determined when the weekly number of observed deaths exceeded the upper bound of 97.5% prediction interval. Results Excess deaths were noted in June 2021 and became more pronounced from February 2022 onwards. The trend was notable among those aged ≥75 years and for those who died in hospitals. With respect to the location of deaths, the excess was significant in geriatric health services facilities from April 2020 to June 2021, while no evidence of excess hospital deaths was observed during the same period. Conclusions Beginning in late 2021, excess cerebrovascular deaths coincided with the spread of the Omicron variant and may be associated with increased healthcare burden. In 2020, COVID-19 altered the geography of cerebrovascular deaths, with fewer people dying in hospitals and more dying in geriatric health service facilities and at home.
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Affiliation(s)
- S Nomura
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan; Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Tokyo Foundation for Policy Research, Tokyo, Japan.
| | - A Eguchi
- Department of Sustainable Health Science, Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - C Ghaznavi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan; Medical Education Program, Washington University School of Medicine in St Louis, Saint Louis, United States
| | - L Yamasaki
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; School of Medicine, Nagasaki University, Nagasaki, Japan
| | - S K Rauniyar
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Ocean Policy Research Institute, Sasakawa Peace Foundation, Tokyo, Japan
| | - Y Tanoue
- Institute for Business and Finance, Waseda University, Tokyo, Japan
| | - T Kawashima
- Department of Mathematical and Computing Science, Tokyo Institute of Technology, Tokyo, Japan
| | - D Yoneoka
- Infectious Disease Surveillance Center at the National Institute of Infectious Diseases, Tokyo, Japan; Tokyo Foundation for Policy Research, Tokyo, Japan
| | - S Kohsaka
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - M Suzuki
- Infectious Disease Surveillance Center at the National Institute of Infectious Diseases, Tokyo, Japan
| | - M Hashizume
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Kimura S, Suzuki M, Nakamaru Y, Kano S, Watanabe M, Honma A, Nakazono A, Tsushima N, Hatakeyama S, Homma A. TRIM27 expression is associated with poor prognosis in sinonasal mucosal melanoma. Rhinology 2023:3062. [PMID: 36891983 DOI: 10.4193/rhin22.405] [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] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
BACKGROUND Tripartite motif-containing 27 (TRIM27) has been implicated in the progression of various cancers. However, the role of TRIM27 in sinonasal mucosal melanoma (SNMM) remains poorly understood. MATERIALS & METHODS We retrospectively examined 28 patients with SNMM treated with between 2003 and 2021. We undertook immunohistochemical analysis of TRIM27, Ki-67, and p-Akt1 expression in SNMM tissues. We also investigated the relationship between TRIM27 expression and clinical characteristics, prognosis, Ki-67 as a tumor growth potential marker, and p-Akt1 as one of the prognostic factors in mucosal melanoma. RESULTS TRIM27 expression was significantly higher in T4 disease than in T3 disease and was higher in stage IV than in stage III. Patients with high-TRIM27 SNMM had a significantly poorer prognosis in terms of overall survival (OS) and disease-free survival.There was also a significantly higher rate of distant metastasis. Univariate analysis for OS revealed that TRIM27 and T classification were significant poor prognostic factors. In addition, the Ki-67 positive score and the p-Akt1 total staining score were significantly higher in the high-TRIM27 group than in the low-TRIM27 group. CONCLUSIONS High TRIM27 expression in SNMM was associated with advanced T classification, poor prognosis and distant metastasis. We suggest that TRIM27 has potential as a novel biomarker for prognosis in SNMM.
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Affiliation(s)
- S Kimura
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - M Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Y Nakamaru
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - S Kano
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - M Watanabe
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - A Honma
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - A Nakazono
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - N Tsushima
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - S Hatakeyama
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - A Homma
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
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Igarashi A, Matsumoto H, Takaoka M, Kugai H, Suzuki M, Murata S, Miyahara M, Yamamoto-Mitani N. Building Relationships Between Community Care Professionals and Convenience Stores in Japan: Community-Based Participatory Research. Prog Community Health Partnersh 2023. [DOI: 10.1353/cpr.2023.0005] [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: 03/21/2023]
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Igarashi A, Matsumoto H, Takaoka M, Kugai H, Suzuki M, Murata S, Miyahara M, Yamamoto-Mitani N. Building Relationships Between Community Care Professionals and Convenience Stores in Japan: Community-Based Participatory Research. Prog Community Health Partnersh 2023. [DOI: 10.1353/cpr.2023.0000] [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: 03/21/2023]
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Imai K, Ishimoto T, Doke T, Tsuboi T, Watanabe Y, Katsushima K, Suzuki M, Oishi H, Furuhashi K, Ito Y, Kondo Y, Maruyama S. Long non-coding RNA lnc-CHAF1B-3 promotes renal interstitial fibrosis by regulating EMT-related genes in renal proximal tubular cells. Mol Ther Nucleic Acids 2022; 31:139-150. [PMID: 36700051 PMCID: PMC9841231 DOI: 10.1016/j.omtn.2022.12.011] [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] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Renal interstitial fibrosis (RIF) is a common pathological manifestation of chronic kidney diseases. Epithelial-mesenchymal transition (EMT) of tubular epithelial cells is considered a major cause of RIF. Although long non-coding RNAs (lncRNAs) are reportedly involved in various pathophysiological processes, the roles and underlying molecular mechanisms of lncRNAs in the progression of RIF are poorly understood. In this study, we investigated the function of lncRNAs in RIF. Microarray assays showed that expression of the lncRNA lnc-CHAF1B-3 (also called claudin 14 antisense RNA 1) was significantly upregulated in human renal proximal tubular cells by both transforming growth factor-β1 (TGF-β1) and hypoxic stimulation, accompanied with increased expression of EMT-related genes. Knockdown of lnc-CHAF1B-3 significantly suppressed TGF-β1-induced upregulated expression of collagen type I alpha 1, cadherin-2, plasminogen activator inhibitor-1, snail family transcriptional repressor I (SNAI1) and SNAI2. Quantitative reverse transcriptase PCR analyses of paraffin-embedded kidney biopsy samples from IgA nephropathy patients revealed lnc-CHAF1B-3 expression was correlated positively with urinary protein levels and correlated negatively with estimated glomerular filtration rate. In situ hybridization demonstrated that lnc-CHAF1B-3 is expressed only in proximal tubules. These findings suggest lnc-CHAF1B-3 affects the progression of RIF by regulating EMT-related signaling. Thus, lnc-CHAF1B-3 is a potential target in the treatment of RIF.
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Affiliation(s)
- Kentaro Imai
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Takuji Ishimoto
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan,Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute, Aichi, 480-1195, Japan,Corresponding author: Takuji Ishimoto, Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute, Aichi, 480-1195, Japan.
| | - Tomohito Doke
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Toshiki Tsuboi
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Yu Watanabe
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Keisuke Katsushima
- Department of Cancer Biology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Miho Suzuki
- Department of Cancer Biology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Hideto Oishi
- Department of Nephrology, Komaki City Hospital, Komaki, Aichi, 485-8520, Japan
| | - Kazuhiro Furuhashi
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Yasuhiko Ito
- Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute, Aichi, 480-1195, Japan
| | - Yutaka Kondo
- Department of Cancer Biology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Shoichi Maruyama
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
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Minoda A, Tsuda H, Masahashi Y, Nakamura T, Suzuki M, Fukuhara N, Ito Y, Tezuka A, Ando T, Mizuno K. Maternal Renal Dysfunction in Late Pregnancy in Twin and Singleton Pregnancies: Retrospective Study. J Clin Med 2022; 12:jcm12010090. [PMID: 36614889 PMCID: PMC9821260 DOI: 10.3390/jcm12010090] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
This study aimed to evaluate the differences in the impact on maternal renal function between singleton and twin pregnancies in the second half of pregnancy. It retrospectively enrolled 1711 pregnant women consisting of 1547 singleton pregnancies and 164 twin pregnancies from Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital from January 2019 to June 2021. Patients underwent renal function tests (serum blood urea nitrogen, creatinine, and estimated glomerular filtration rate (eGFR)) at least one month before delivery. The main outcome measure was maternal renal dysfunction, defined as a serum creatinine level above 0.8 mg/dL. The serum creatinine level was significantly higher and the eGFR was significantly lower in twin than in singleton pregnancies (p < 0.001). In addition, the rate of renal dysfunction was significantly higher in twin than in singleton pregnancies (7.9% vs. 2.6%; p < 0.01). Multivariate analysis revealed that twin pregnancy (odds ratio (OR) 3.38), nulliparity (OR 2.31), and preeclampsia (OR 3.64) were significant risk factors for maternal renal dysfunction. Maternal renal dysfunction was observed in 13 twin pregnancies, all of which recovered to within normal limits during the early months of the postpartum period. Twin pregnancy is a significant risk factor for maternal renal dysfunction; renal function should be carefully monitored in twin pregnancies.
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22
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Suzuki M, Shindo Y, Yamanaka R, Oka K. Live imaging of apoptotic signaling flow using tunable combinatorial FRET-based bioprobes for cell population analysis of caspase cascades. Sci Rep 2022; 12:21160. [PMID: 36476686 PMCID: PMC9729311 DOI: 10.1038/s41598-022-25286-z] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Understanding cellular signaling flow is required to comprehend living organisms. Various live cell imaging tools have been developed but challenges remain due to complex cross-talk between pathways and response heterogeneities among cells. We have focused on multiplex live cell imaging for statistical analysis to address the difficulties and developed simple multiple fluorescence imaging system to quantify cell signaling at single-cell resolution using Förster Resonance Energy Transfer (FRET)-based chimeric molecular sensors comprised of fluorescent proteins and dyes. The dye-fluorescent protein conjugate is robust for a wide selection of combinations, facilitating rearrangement for coordinating emission profile of molecular sensors to adjust for visualization conditions, target phenomena, and simultaneous use. As the molecular sensor could exhibit highly sensitive in detection for protease activity, we customized molecular sensor of caspase-9 and combine the established sensor for caspase-3 to validate the system by observation of caspase-9 and -3 dynamics simultaneously, key signaling flow of apoptosis. We found cumulative caspase-9 activity rather than reaction rate inversely regulated caspase-3 execution times for apoptotic cell death. Imaging-derived statistics were thus applied to discern the dominating aspects of apoptotic signaling unavailable by common live cell imaging and proteomics protein analysis. Adopted to various visualization targets, the technique can discriminate between rivalling explanations and should help unravel other protease involved signaling pathways.
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Affiliation(s)
- Miho Suzuki
- grid.263023.60000 0001 0703 3735Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570 Japan
| | - Yutaka Shindo
- grid.26091.3c0000 0004 1936 9959Department of Bioscience and Informatics, Faculty of Science and Technology, Keio University, Kanagawa, 223-0061 Japan
| | - Ryu Yamanaka
- grid.469470.80000 0004 0617 5071Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Yamaguchi, 756-0884 Japan
| | - Kotaro Oka
- grid.26091.3c0000 0004 1936 9959Department of Bioscience and Informatics, Faculty of Science and Technology, Keio University, Kanagawa, 223-0061 Japan ,grid.412019.f0000 0000 9476 5696Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, 80708 Taiwan ,grid.5290.e0000 0004 1936 9975Waseda Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555 Japan
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23
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Murakami N, Onggaruly A, Rakhimzhanova S, Standall EA, Talbot HM, Lucquin A, Suzuki M, Karimagambetov A, Nuskabay A, Nam SW, Craig OE, Shoda S. Lipid residues in ancient pastoralist pottery from Kazakhstan reveal regional differences in cooking practices. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.1032637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The Bronze Age—Iron Age transition in Central Asia (ca. 800 BCE) was a period of significant cultural change that was heavily influenced by greater population interaction and mobility. Indeed, scholars have increasingly emphasized the role that “food globalization in prehistory” has played in defining this period. In the mountain foothills of Kazakhstan, culinary traditions from across Eurasia were combined through the use of Southwest Asian wheat, barley, and livestock (cattle, sheep, and goats) with East Asian foxtail and broomcorn millets. The development of food cultures during this period has been investigated by archaeobotanical and isotopic analysis, yet lipid residues from pottery, which directly represent culinary practices, have not been adequately examined. In this study, lipid residue analysis was conducted on 72 pottery sherds, excavated from three burial mounds and one non-burial, ritual site located in Kazakhstan, dating to ca. 700–200 BCE. A particularly informative observation was the frequency of miliacin, a biomarker of broomcorn millet, detected in residues that corresponded well with previously published regional differences observed in carbon isotope ratios of human remains that indicate the consumption of C4 plants. This study also demonstrates continuity of Bronze Age dairying traditions into the Iron Age. Finally, this study sheds new light on the diversity of food cultures and mortuary practices in this region, which were not uniform across either space or time.
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24
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Seto I, Yamaguchi H, Takagawa Y, Suzuki M, Takayama K, Tominaga T, Machida M, Murakami M. Retrospective Clinical Outcomes of Proton Beam Therapy for Unresectable Locally Advanced Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1121] [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: 10/31/2022]
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25
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Murakami M, Kato T, Yamaguchi H, Seto I, Takayama K, Tominaga T, Takagawa Y, Suzuki M, Machida M, Kikuchi Y. Proton Beam Re-Irradiation for In-Field Recurrent Non-Small Cell Lung Cancer after Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1530] [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: 11/24/2022]
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26
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Kuramata M, Mochida K, Fukushima S, Sadamori T, Suzuki M, Francisco KR, Freitas HR, Balogun OO, Takehara K. Development and implementation of the maternal and child health Handbook in Angola. BMJ Glob Health 2022; 7:bmjgh-2022-010313. [PMID: 36283732 PMCID: PMC9608535 DOI: 10.1136/bmjgh-2022-010313] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 08/02/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022] Open
Abstract
Although the maternal and child health (MCH) Handbook is widely used in many countries, its development and implementation process has not been sufficiently documented in scientific publications. This is a report of how the Angola MCH Handbook was developed, what challenges we encountered during its implementation and how they were solved. Leading the process was the MCH Handbook Committee set up to develop the MCH Handbook and implement the programme in liaison with various stakeholders. We developed the MCH Handbook through participatory workshops with the objective of producing user-responsive content and designs, foster healthy interaction and build common understanding among stakeholders. After pilot use in select health facilities, the MCH Handbook programme, which included training, monitoring and supervision, mothers’ class and community awareness raising activities, was gradually implemented in three model provinces. Core members of the committee closely observed each step of the programme to identify challenges in each field, and revised the tool and programme throughout the process. As nationwide implementation of the MCH Handbook Programme progresses, it is important to continually identify challenges specific to different localities while taking measures to address them. In our experience, stakeholder involvement from the early planning and preparation stages was critical to ensure their continued commitment at later stages and for programme continuity. Our approach of tool development involving various stakeholders and flexible implementation strategies were key elements for user acceptance and programme sustainability that may be applicable for introduction of similar interventions in other settings.
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Affiliation(s)
| | - Keiji Mochida
- TA Networking Corp, Tokyo, Japan
- Department of Health Policy, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | | | | | | | | | - Helga Reis Freitas
- National Directorate of Public Health, Ministry of Health of Angola, Luanda, Angola
| | | | - Kenji Takehara
- Department of Health Policy, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
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27
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Kono A, Yoshioka R, Hawke P, Iwashina K, Inoue D, Suzuki M, Narita C, Haruta K, Miyake A, Yoshida H, Tosaka N. Correction to: A case of severe interstitial lung disease after COVID-19 vaccination. QJM 2022; 115:705. [PMID: 35312768 PMCID: PMC9383578 DOI: 10.1093/qjmed/hcac066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Kono
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - R Yoshioka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - P Hawke
- School of Pharmaceutical Sciences, University of Shizuoka, 51-1 Yada Suruga ward, Shizuoka 422-8526, Japan
| | - K Iwashina
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - D Inoue
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - M Suzuki
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - C Narita
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - K Haruta
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - A Miyake
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - H Yoshida
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - N Tosaka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
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28
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Sasako T, Umehara T, Soeda K, Kaneko K, Suzuki M, Kobayashi N, Okazaki Y, Tamura-Nakano M, Chiba T, Accili D, Kahn CR, Noda T, Asahara H, Yamauchi T, Kadowaki T, Ueki K. Deletion of skeletal muscle Akt1/2 causes osteosarcopenia and reduces lifespan in mice. Nat Commun 2022; 13:5655. [PMID: 36198696 PMCID: PMC9535008 DOI: 10.1038/s41467-022-33008-2] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 08/19/2022] [Indexed: 01/23/2023] Open
Abstract
Aging is considered to be accelerated by insulin signaling in lower organisms, but it remained unclear whether this could hold true for mammals. Here we show that mice with skeletal muscle-specific double knockout of Akt1/2, key downstream molecules of insulin signaling, serve as a model of premature sarcopenia with insulin resistance. The knockout mice exhibit a progressive reduction in skeletal muscle mass, impairment of motor function and systemic insulin sensitivity. They also show osteopenia, and reduced lifespan largely due to death from debilitation on normal chow and death from tumor on high-fat diet. These phenotypes are almost reversed by additional knocking out of Foxo1/4, but only partially by additional knocking out of Tsc2 to activate the mTOR pathway. Overall, our data suggest that, unlike in lower organisms, suppression of Akt activity in skeletal muscle of mammals associated with insulin resistance and aging could accelerate osteosarcopenia and consequently reduce lifespan.
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Affiliation(s)
- Takayoshi Sasako
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan ,grid.45203.300000 0004 0489 0290Department of Molecular Diabetic Medicine, Diabetes Research Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Toshihiro Umehara
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kotaro Soeda
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan ,grid.45203.300000 0004 0489 0290Department of Molecular Diabetic Medicine, Diabetes Research Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kazuma Kaneko
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Miho Suzuki
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Naoki Kobayashi
- grid.45203.300000 0004 0489 0290Department of Molecular Diabetic Medicine, Diabetes Research Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Yukiko Okazaki
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Miwa Tamura-Nakano
- grid.45203.300000 0004 0489 0290Communal Laboratory, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tomoki Chiba
- grid.265073.50000 0001 1014 9130Department of Systems BioMedicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Domenico Accili
- grid.21729.3f0000000419368729Columbia University College of Physicians & Surgeons, Department of Medicine, New York, NY USA
| | - C. Ronald Kahn
- grid.38142.3c000000041936754XJoslin Diabetes Center, Harvard Medical School, Boston, MA USA
| | - Tetsuo Noda
- grid.410807.a0000 0001 0037 4131Department of Cell Biology, Cancer Institute, Japanese Foundation of Cancer Research, Tokyo, Japan
| | - Hiroshi Asahara
- grid.265073.50000 0001 1014 9130Department of Systems BioMedicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshimasa Yamauchi
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takashi Kadowaki
- grid.26999.3d0000 0001 2151 536XDepartment of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan ,grid.410813.f0000 0004 1764 6940Toranomon Hospital, Tokyo, Japan
| | - Kohjiro Ueki
- grid.45203.300000 0004 0489 0290Department of Molecular Diabetic Medicine, Diabetes Research Center, National Center for Global Health and Medicine, Tokyo, Japan ,grid.26999.3d0000 0001 2151 536XDepartment of Molecular Diabetetology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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29
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Matsuda M, Suzuki M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Iguchi M, Abe M, Akao M, Hasegawa K, Wada H. Involvement of growth differentiation factor 15 in paradoxical relationship between body mass index and mortality in patients with suspected or known coronary artery disease; The ANOX Study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2391] [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: 11/13/2022] Open
Abstract
Abstract
Background
Obesity is a well-established risk factor for type 2 diabetes mellitus, hypertension and dyslipidemia, leading to coronary artery disease (CAD). Nevertheless, body mass index (BMI) is inversely associated with cardiovascular (CV) mortality in patients with cardiac disorders, termed “obesity paradox”. However, the underlying mechanism remains unclear.
Purpose
To clarify important factors involved in the pathogenesis of obesity paradox.
Methods
Using data from a multicenter, prospective cohort of 2,418 patients with suspected or known CAD enrolled in the ANOX study, we assessed the relationship between BMI at baseline and the incidence of CV death over 3 years, and investigated the involvement of several endocrine factors which were previously reported to have some roles in obesity and heart diseases, such as adiponectin, N-terminal pro-brain natriuretic peptide (NT-proBNP) and growth differentiation factor 15 (GDF-15), in the relationship between BMI and CV death.
Results
In Kaplan-Meier analyses, the lower quartiles of BMI and the higher quartiles of adiponectin levels were paradoxically associated with the higher cumulative incidence of CV death. To clarify the important factors involved in the paradoxical association between BMI or adiponectin and mortality, we first investigated independent determinants for BMI and adiponectin levels respectively, using multiple stepwise regression analyses among many clinical factors, and then narrow down the prognostic factors commonly associated with BMI and adiponectin, which were age, hemoglobin and NT-proBNP. Interestingly, circulating levels of GDF15 were significantly correlated with NT-proBNP levels, and the presence of anemia raised the gradient of the correlation line in a scatter plot (without anemia, r=0.139, p<0.0001; with anemia, r=0.228, p<0.0001). Moreover, the highest GDF15 quartile showed significantly lower BMI and higher adiponectin levels compared to the lower quartiles (p<0.001 and p<0.001, respectively, by Student t-test). In Cox proportional hazard models, hazard ratios (HRs) of BMI (per 1-unit increase) were 0.90 (95% confidence interval [CI], 0.85–0.96) for CV death. Additional adjustment for hemoglobin, NT-proBNP, adiponectin or GDF15 diminished the statistical significance (HR, 0.92 [95% CI, 0.87–0.99], 0.95 [0.89–1.01], 0.92 [0.87–0.99], or 0.93 [0.87–0.99], respectively).
Conclusions
The lower BMI and the higher adiponectin levels were paradoxically associated with the higher incidence of CV death in patients with CAD. This paradox may be mediated by cardiac endocrine factors induced by cardiac stresses, including GDF-15 in addition to natriuretic peptides.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center , Kure , Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital , Wako , Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center , Yokohama , Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center , Sendai , Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center , Kanazawa , Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital , Hakodate , Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center , Kobe , Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center , Toon , Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center , Sapporo , Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital , Sagamihara , Japan
| | - M Iguchi
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
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30
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Iguchi M, Wada H, Shinozaki T, Suzuki M, Ajiro Y, Matsuda M, Koike A, Koizumi T, Shimizu M, Ono Y, Takenaka T, Kotani K, Abe M, Akao M, Hasegawa K. Vascular endothelial factor C and D in patients with heart failure with preserved, mildly reduced, and reduced ejection fraction: the PREHOSP-CHF study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.916] [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: 11/13/2022] Open
Abstract
Abstract
Background
The lymphatic system has been suggested to play an important role in cardiovascular diseases including heart failure (HF). Vascular endothelial growth factor C (VEGF-C) and D (VEGF-D) are key regulators of lymphangiogenesis, and we recently reported the association of low VEGF-C with the risk of all-cause death and high VEGF-D with the risk of HF hospitalization in patients with HF.
Purpose
To investigate the association of VEGF-C and VEGF-D with prognosis in patients with HF with preserved ejection fraction (EF) (HFpEF: EF≥50%), mildly reduced EF (HFmrEF: EF, 40–49%), and reduced EF (HFrEF: EF<40%).
Methods
The PREHOSP-CHF study is a multicenter prospective cohort study to determine the predictive value of angiogenesis-related biomarkers in HF. A total of 1,024 patients (mean age 75.5±12.6 years; 58.7% male) admitted to acute decompensated HF were included in the analyses. Serum levels of VEGF-C and VEGF-D, as well as N-terminal pro B-type natriuretic peptide (NT-proBNP), high sensitivity cardiac troponin-I (hs-cTnI), high sensitivity C reactive protein, were measured at the time of discharge. Patients were followed-up over two years.
Results
The numbers of HFpEF, HFmrEF, and HFrEF were 429 (41.9%), 186 (18.2%), and 409 (39.9%), respectively. HFpEF patients were older, more likely to be female, and had more hypertension, atrial fibrillation, and anemia, but less coronary artery disease. NT-proBNP and hs-cTnI levels increased with decreasing EF. VEGF-C levels decreased with increasing EF (median [interquartile range]: HFpEF, 4508 [3318–5919] pg/ml; HFmrEF, 4719 [3663–6203] pg/ml; HFrEF, 5023 [3804–6382] pg/ml), whereas VEGF-D levels were comparable among the three EF groups (HFpEF, 404.6 [293.1–560.3] pg/ml; HFmrEF, 386.0 [298.5–556.3] pg/ml; HFrEF, 414.2 [296.1–557.3] pg/ml). In multivariate stepwise logistic regression analyses, anemia and high NT-proBNP were independently associated with low VEGF-C levels, and high NT-proBNP was independently associated with high VEGF-D levels, across all the EF groups. During the follow-up, incidences of all-cause death and HF hospitalizations were similar among the three EF groups (log-rank P=0.6 for all-cause death, and log-rank P=0.3 for HF hospitalization). On multivariate Cox proportional hazard analyses including established risk factors and cardiovascular biomarkers, VEGF-C levels tended to be inversely associated with the incidence of all-cause death in patients with HFpEF and HFrEF (Figure). On the contrary, VEGF-D levels were significantly and positively associated with the incidence of HF hospitalization in patients with HFpEF, and tended to be positively associated with it in patients with HFmrEF and HFrEF (Figure).
Conclusions
Low VEGF-C was associated with the risk of all-cause death in patients with HFpEF and HFrEF, while high VEGF-D was associated with the risk of HF hospitalization especially in HFpEF.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Grant-in-Aid for Clinical Research from the National Hospital Organization
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Affiliation(s)
- M Iguchi
- Kyoto Medical Center, National Hospital Organization , Kyoto , Japan
| | - H Wada
- Kyoto Medical Center, National Hospital Organization , Kyoto , Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center , Sendai , Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital , Saitama , Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center , Yokohama , Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center , Kure , Japan
| | - A Koike
- National Hospital Organization Fukuokahigashi Medical Center , Fukuoka , Japan
| | - T Koizumi
- National Hospital Organization Mito Medical Center , Ibaraki , Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center , Kobe , Japan
| | - Y Ono
- National Hospital Organization Higashihiroshima Medical Center , Hiroshima , Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center , Sapporo , Japan
| | - K Kotani
- Jichi Medical University , Tochigi , Japan
| | - M Abe
- Kyoto Medical Center, National Hospital Organization , Kyoto , Japan
| | - M Akao
- Kyoto Medical Center, National Hospital Organization , Kyoto , Japan
| | - K Hasegawa
- Kyoto Medical Center, National Hospital Organization , Kyoto , Japan
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31
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Wada H, Shinozaki T, Suzuki M, Sakagami S, Ajiro Y, Funada J, Matsuda M, Shimizu M, Takenaka T, Morita Y, Wada K, Kotani K, Abe M, Akao M, Hasegawa K. Associations of soluble fms-like tyrosine kinase-1 with cardiovascular events and stroke in patients with atrial fibrillation and suspected or known coronary artery disease: the EXCEED-J study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.544] [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
Background
Atrial fibrillation (AF) increases the risk of stroke. Soluble fms-like tyrosine kinase-1 (sFlt-1), a vascular endothelial growth factor (VEGF) antagonist, has been suggested as a marker of endothelial dysfunction, which are associated with both AF and coronary artery disease (CAD). Recently, we demonstrated that sFlt-1 is independently associated with major adverse cardiovascular (CV) events (MACE) in patients with suspected or known CAD. However, the prognostic utility of sFlt-1 in patients with AF remains unknown.
Methods
Using data from a multicenter, prospective cohort of 3255 patients with suspected or known CAD, we investigated whether AF modifies the prognostic utility of sFlt-1. Heparin-free serum levels of sFlt-1, N-terminal pro-brain natriuretic peptide, high-sensitivity cardiac troponin-I, high-sensitivity C-reactive protein, cystatin C, neutrophil gelatinase-associated lipocalin, VEGF, and placental growth factor were measured in 324 patients with AF and 2931 patients without AF. The primary outcome was MACE defined as a composite of CV death, nonfatal myocardial infarction, and nonfatal stroke. The secondary outcomes were all-cause death, CV death, stroke, heart failure (HF) hospitalization, and coronary/peripheral artery revascularization. The biomarkers were natural log-transformed for use as continuous variables.
Results
After adjustment for potential clinical confounders including anticoagulant drug use, sFlt-1 was significantly associated with MACE (hazard ratio for 1 standard deviation increase [HR], 1.55; 95% confidence interval [CI], 1.14–2.08), CV death (HR, 1.68; 95% CI, 1.10–2.48), and stroke (HR, 1.89; 95% CI, 1.16–3.10), but not with all-cause death (HR, 1.32; 95% CI, 0.99–1.73), HF hospitalization (HR, 0.97; 95% CI, 0.73–1.25), or revascularization (HR, 0.99; 95% CI, 0.74–1.28) in patients with AF, whereas sFlt-1 was significantly associated with MACE (HR, 1.19; 95% CI, 1.02–1.37), all-cause death (HR, 1.19; 95% CI, 1.05–1.34), CV death (HR, 1.26; 95% CI, 1.03–1.48), and HF hospitalization (HR, 1.26; 95% CI, 1.11–1.42), but not with stroke (HR, 1.06; 95% CI, 0.81–1.33) or revascularization (HR, 1.01; 95% CI, 0.95–1.07) in patients without AF. Among other biomarkers, only VEGF was significantly associated with MACE (HR, 1.55; 95% CI, 1.02–2.44), and no biomarkers were significantly associated with CV death or stroke in patients with AF. sFlt-1 added incremental prognostic information for MACE (P=0.005 for net reclassification improvement [NRI], P=0.026 for integrated discrimination improvement [IDI]) and stroke (P=0.034 for NRI, P=0.018 for IDI), but not for CV death (P=0.021 for NRI, P=0.134 for IDI), to the model with potential clinical confounders in patients with AF.
Conclusions
sFlt-1 independently predicted MACE and stroke in patients with AF and suspected or known CAD. sFlt-1 may serve as a novel prognostic biomarker to stratify the risk of MACE and stroke in patients with AF.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Health Labour Sciences Research Grant (2013-2014), AMED (2015-2017, Grant Number JP17ek0210008)
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center , Sendai , Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital , Wako , Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center , Kanazawa , Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center , Yokohama , Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center , Toon , Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center , Kure , Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center , Kobe , Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center , Sapporo , Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital , Sagamihara , Japan
| | - K Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - K Kotani
- Jichi Medical University , Shimotsuke , Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
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Suzuki M, Kotani K, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Wada M, Abe M, Akao M, Hasegawa K, Wada H. Serum amyloid A-low-density-lipoprotein complex and mortality in patients with suspected or known coronary artery disease: the ANOX study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1161] [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: 11/13/2022] Open
Abstract
Abstract
Background
Serum amyloid A-low-density-lipoprotein (SAA-LDL) is a complex formed from the oxidative interaction between SAA and LDLs. A relatively small-scale study has shown that circulating SAA-LDL levels may serve as a prognostic marker in patients with stable coronary artery disease (CAD). However, the prognostic value of SAA-LDL should be confirmed in a larger-scale cohort study.
Methods
Using data from a multicenter, prospective cohort of 2416 patients with suspected or known CAD enrolled in the ANOX (Development of Novel Biomarkers Related to Angiogenesis or Oxidative Stress to Predict Cardiovascular Events) study, we assessed the prognostic value of serum levels of SAA-LDL. The primary outcome was all-cause death. The secondary outcomes were cardiovascular death and major adverse cardiovascular events (MACE) defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke. Patients were followed up over 3 years.
Results
Stepwise regression analysis including baseline data on potential clinical confounders (i.e., age, sex, body mass index, hypertension, dyslipidemia, diabetes, current smoking, estimated glomerular filtration rate, the Gensini score, previous myocardial infarction, previous stroke, previous heart failure hospitalization, atrial fibrillation, malignancies, anemia, antihypertensive drug use, statin use, and aspirin use) and established cardiovascular biomarkers (i.e., N-terminal pro-brain natriuretic peptide, high-sensitivity cardiac troponin I [hs-cTnI], and high-sensitivity C-reactive protein [hs-CRP]) revealed that independent determinants of SAA-LDL levels were female sex, dyslipidemia, the Gensini score, absence of statin use, hs-cTnI, and hs-CRP. After adjusting for potential clinical confounders and established cardiovascular biomarkers, the highest quartile of SAA-LDL levels (vs. the lowest quartile) was significantly associated with the incidence of all-cause death (hazard ratio [HR], 1.51; 95% confidence interval [CI], 1.02–2.26), but not with that of cardiovascular death (HR, 1.11; 95% CI, 0.59–2.10) or MACE (HR, 1.57; 95% CI, 0.97–2.57). Stratified analyses revealed that this association was pronounced in patients with low hs-cTnI (<75th percentile) (HR, 1.85; 95% CI, 1.06–3.30) and in patients with low hs-CRP levels (≤1.0 mg/L) (HR, 2.30; 95% CI, 1.17–4.79).
Conclusions
Elevated SAA-LDL levels were independently associated with the risk of all-cause death in patients with suspected or known CAD. The SAA-LDL level appears to serve as a prognostic biomarker for risk stratification in relatively low-risk patients with low hs-cTnI (<75th percentile) or low hs-CRP (≤1.0 mg/L).
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- M Suzuki
- National Hospital Organization Saitama Hospital , Wako , Japan
| | - K Kotani
- Jichi Medical University , Shimotsuke , Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center , Kure , Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center , Yokohama , Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center , Sendai , Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center , Kanazawa , Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital , Hakodate , Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center , Kobe , Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center , Toon , Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center , Sapporo , Japan
| | - M Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
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Murayama Y, Kitasato L, Ishizue N, Suzuki M, Mitani Y, Saito D, Matsuura G, Sato T, Kobayashi S, Nakamura H, Oikawa J, Kishihara J, Fukaya H, Niwano S, Ako J. Evaluation of the direct protective effects of Canagliflozin on the Isoproterenol-induced cell injury in rat cardiomyocytes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2927] [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: 11/13/2022] Open
Abstract
Abstract
Background
Sodium-glucose cotransporter-2 (SGLT2) inhibitors are agents that act by inhibiting glucose and sodium reabsorption in the proximal renal tubule which promotes urinary glucose excretion. More recently, significant benefit data of SGLT2 inhibitors in patients with heart failure, independent of the presence of type 2 diabetes has been reported. We have previously demonstrated that Canagliflozin (Cana), a SGLT2 inhibitor, reduced the ventricular effective refractory period in isoproterenol (ISP)-induced myocardial injury rat model accompanied with the suppression of reactive oxygen species and the elevation of ketone bodies, suggesting the effect of Cana on electrical cardiac remodeling. The direct effect of Cana to the cardiomyocytes and its underlying molecular mechanism was remained to be clarified. We therefore established an ISP-induced neonatal rat ventricular cardiomyocyte (NRVCM) in vitro model, pretreated with Cana and/or ketone bodies.
Methods
Primary NRVCM were isolated from Wistar rats, were pretreated by Cana with or without βOHB (the most abundant ketone body in circulation), followed by a stimulation of ISP (10μM). Cells without drug or ketone body pretreatment were used as control. We then analyzed its effect on cell viability, apoptosis, and mitochondrial membrane potential using MTT assay, TUNEL assay, and mitochondrial membrane potential assay, respectively. MTT assay was also performed with or without PI3k inhibitor, LY294002. The end-labeling of DNA fragmentation were labelled with FITC, followed by the nuclei counterstain with DAPI and were observed with confocal microscope. The apoptotic index was defined as the percentage of TUNEL positive cells / total nuclei.
Results
Cana rescued the reduction of NRVCM cell viability induced by ISP stimulation for 24 hours which was inhibited by LY294002 compared to cells without pretreatment. Interestingly, pretreatment of βOHB with or without Cana improved also the NRCVM cell viability whereas there was no significant difference between these two conditions or with cells treated with Cana only, suggesting the direct protective effect of Cana. In 48 hours of ISP stimulation, the apoptotic index intends to decrease in Cana and/or βOHB compared to cells without pretreatment (Figure 1). Although the mitochondrial function was maintained in Cana-pretreated cells compared to cells without pretreatment, there was no significant difference in βOHB-pretreated cells.
Conclusions
Cana has a direct protective effect on cardiomyocytes cell viability, apoptosis as well as the mitochondrial function impaired by ISP through the cell survival signaling PI3K/Akt pathway. This brings a new insight to the therapeutic target of cardiovascular disease.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Murayama
- Kitasato University School of Medicine , Sagamihara , Japan
| | - L Kitasato
- Kitasato University School of Medicine , Sagamihara , Japan
| | - N Ishizue
- Kitasato University School of Medicine , Sagamihara , Japan
| | - M Suzuki
- Kitasato University School of Medicine , Sagamihara , Japan
| | - Y Mitani
- Kitasato University School of Medicine , Sagamihara , Japan
| | - D Saito
- Kitasato University School of Medicine , Sagamihara , Japan
| | - G Matsuura
- Kitasato University School of Medicine , Sagamihara , Japan
| | - T Sato
- Kitasato University School of Medicine , Sagamihara , Japan
| | - S Kobayashi
- Kitasato University School of Medicine , Sagamihara , Japan
| | - H Nakamura
- Kitasato University School of Medicine , Sagamihara , Japan
| | - J Oikawa
- Kitasato University School of Medicine , Sagamihara , Japan
| | - J Kishihara
- Kitasato University School of Medicine , Sagamihara , Japan
| | - H Fukaya
- Kitasato University School of Medicine , Sagamihara , Japan
| | - S Niwano
- Kitasato University School of Medicine , Sagamihara , Japan
| | - J Ako
- Kitasato University School of Medicine , Sagamihara , Japan
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Kako J, Kobayashi M, Kanno Y, Kajiwara K, Nakano K, Morikawa M, Matsuda Y, Shimizu Y, Hori M, Niino M, Suzuki M, Shimazu T. Nursing support for symptoms in patients with cancer and caregiver burdens: a scoping review protocol. BMJ Open 2022; 12:e061866. [PMID: 36104140 PMCID: PMC9476151 DOI: 10.1136/bmjopen-2022-061866] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Terminally ill patients with cancer experience a variety of symptoms, and their families experience certain caregiver burdens. Most studies on this topic have focused on the symptoms experienced by patients with cancer. There is little established evidence to show how nursing support affects these symptoms and burdens. Nurses provide support by extrapolating their clinical experience, practical knowledge and insights gained from the treatment phase of patients with cancer, regardless of the existence or degree of evidence. This study presents a scoping review protocol with the aim of categorising the feasibility of nursing support from the initial to the terminal phases in the trajectory of cancer care. METHOD AND ANALYSIS This review will be guided by Arksey and O'Malley's five-stage scoping review framework and Levac's extension. Our research project team will focus on the pain, dyspnoea, nausea and vomiting, constipation, delirium, fatigue and skin disorders experienced by patients with cancer as well as the burdens experienced by caregivers of such patients. All available published articles from database inception to 31 January 2022 will be systematically searched using the following electrical databases: PubMed, CINAHL, CENTRAL in the Cochrane Library and Ichushi-Web of the Japan Medical Abstract Society databases. In addition, we will assess relevant studies from the reference list and manually search each key journal. The formula creation phase of the literature search involves working with a librarian to identify relevant keywords. At least two reviewers will independently screen and review articles and extract data using a data chart form. Results will be mapped according to study design and analysed for adaptation in the field of terminal cancer. ETHICS AND DISSEMINATION This review does not require ethical approval as it is a secondary analysis of pre-existing, published data. The findings will be disseminated through peer-reviewed publications and conference presentations.
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Affiliation(s)
- Jun Kako
- College of Nursing Art and Science, University of Hyogo, Akashi, Japan
| | - Masamitsu Kobayashi
- Graduate of Nursing Science, St. Luke's International University, Chuo-ku, Japan
| | - Yusuke Kanno
- Nursing Science, Tokyo Medical and Dental University, Bunkyo-ku, Japan
| | - Kohei Kajiwara
- Japanese Red Cross Kyushu International College of Nursing, Munakata, Japan
| | - Kimiko Nakano
- Clinical Research Center for Developmental Therapeutics, Tokushima University Hospital, Tokushima, Japan
| | | | - Yoshinobu Matsuda
- Department of Psychosomatic Internal Medicine, National Hospital Organization Kinki-Chuo Chest Medical Center, Sakai, Japan
| | - Yoichi Shimizu
- School of Nursing, National College of Nursing, Kiyose, Japan
| | - Megumi Hori
- Faculty of Nursing, Shizuoka University, Shizuoka, Japan
| | - Mariko Niino
- Center for Cancer Registries, Institute for Cancer Control, National Cancer Center, Chuo-ku, Japan
| | - Miho Suzuki
- Faculty of Nursing and Medical Care, Keio University, Minato-ku, Japan
| | - Taichi Shimazu
- Division of Behavioral Sciences, Institute for Cancer Control, National Cancer Center, Chuo-ku, Japan
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Takeda T, Yamano S, Suzuki M. P19-03 Comparative analysis of pathogenesis and search for biomarkers using a rat model of pneumoconiosis caused by toxic particulate matters. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.652] [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: 10/14/2022]
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36
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Yanagiba Y, Takeda T, Yamano S, Amamoto T, Yamada M, Kubota H, Suzuki M, Saito M, Umeda Y, Wang RS, Koda S. P19-05 Challenges in developing a novel accelerated silicosis rat model by single intratracheal instillation of high-purity crystalline silica particles. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.654] [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: 10/14/2022]
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37
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Morioka S, Tsuzuki S, Suzuki M, Terada M, Akashi M, Osanai Y, Kuge C, Sanada M, Tanaka K, Maruki T, Takahashi K, Saito S, Hayakawa K, Teruya K, Hojo M, Ohmagari N. Post COVID-19 condition of the Omicron variant of SARS-CoV-2. J Infect Chemother 2022; 28:1546-1551. [PMID: 35963600 PMCID: PMC9365517 DOI: 10.1016/j.jiac.2022.08.007] [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: 06/04/2022] [Revised: 07/18/2022] [Accepted: 08/04/2022] [Indexed: 12/12/2022]
Abstract
Objectives To investigate the prevalence of post coronavirus disease (COVID-19) condition of the Omicron variant in comparison to other strains. Study design A single-center cross-sectional study. Methods Patients who recovered from Omicron COVID-19 infection (Omicron group) were interviewed via telephone, and patients infected with other strains (control group) were surveyed via a self-reporting questionnaire. Data on patients’ characteristics, information regarding the acute-phase COVID-19, as well as presence and duration of COVID-19-related symptoms were obtained. Post COVID-19 condition in this study was defined as a symptom that lasted for at least 2 months, within 3 months of COVID-19 onset. We investigated and compared the prevalence of post COVID-19 condition in both groups after performing propensity score matching. Results We conducted interviews for 53 out of 128 patients with Omicron and obtained 502 responses in the control group. After matching cases with controls, 18 patients from both groups had improved covariate balance of the factors: older adult, female sex, obesity, and vaccination status. There were no significant differences in the prevalence of each post COVID-19 condition between the two groups. The number of patients with at least one post COVID-19 condition in the Omicron and control groups were 1 (5.6%) and 10 (55.6%) (p = 0.003), respectively. Conclusions The prevalence of post Omicron COVID-19 conditions was less than that of the other strains. Further research with a larger sample size is needed to investigate the precise epidemiology of post COVID-19 condition of Omicron, and its impact on health-related quality of life and social productivity.
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Affiliation(s)
- S Morioka
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; Emerging and Reemerging Infectious Diseases, Graduate School of Medicine, Tohoku University, Sendai, Japan; AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan.
| | - S Tsuzuki
- AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - M Suzuki
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - M Terada
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Akashi
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Y Osanai
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - C Kuge
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - M Sanada
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Tanaka
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - T Maruki
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Takahashi
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - S Saito
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Hayakawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - K Teruya
- AIDS Clinical Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - M Hojo
- Division of Respiratory Medicine, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - N Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan; AMR Clinical Reference Center, National Center for Global Health and Medicine Hospital, Tokyo, Japan
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38
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Suzuki M, Harada N, Honda K, Koda M, Araki T, Kudo T, Watanabe T. Facilitators and barriers in implementing the nurse practitioner role in Japan: A cross-sectional descriptive study. Int Nurs Rev 2022. [PMID: 35839821 DOI: 10.1111/inr.12790] [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: 08/27/2021] [Accepted: 05/29/2022] [Indexed: 11/27/2022]
Abstract
AIM To investigate the distribution of nurse practitioners (NPs) across Japan and their perceived facilitators and barriers to NP implementation in Japan. BACKGROUND NP certification examinations have been conducted in Japan since 2011, and by 2020, there were 487 NPs in the country. The momentum of NP implementation is slower in Japan compared with other countries. METHODS A cross-sectional descriptive study, following the STROBE guidelines, was conducted. Web-based survey questionnaires, developed by the authors, were administered to 248 NPs whose email addresses were maintained by the certification management body. RESULTS Valid responses were obtained from 101 NPs (response rate: 40.7%), of which 34% were male. The respondents had more than 12 years of registered nurse experience on an average before enrolling in the graduate NP program. 53% were employed as NPs from the beginning, while 25% were initially employed as registered nurses and later advanced to NPs, and 11% still worked as RNs. A majority worked in hospitals with beds. Many NPs perceived the lack of NP national licensure and reimbursement benefits as barriers to NP implementation, whereas recognition from superiors and organizations was considered facilitators. CONCLUSIONS Despite their small numbers in Japan, NPs take on crucial tasks and contribute to the appropriate distribution of medical resources. The NP licensure system and recognition from superiors and organizations may be necessary to promote NP roles in Japan. IMPLICATIONS FOR NURSING AND HEALTH POLICY Some certified NPs still work as registered nurses. Recognition from nursing and organization administrators is critical to implementing NPs. To this end, a reimbursement system benefiting the organizations and a legislation facilitating NP employment are required.
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Affiliation(s)
- Miho Suzuki
- Faculty of Nursing and Medical Care, Keio University, Kanagawa, Japan
| | - Nahoko Harada
- Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, Okayama, Japan
| | - Kazuya Honda
- Department of Neurosurgery, Nagasaki Medical Center, National Hospital Organization, Nagasaki, Japan
| | - Masahide Koda
- Center for Health Sciences and Counseling, Kyushu University, Fukuoka, Japan
| | - Tomoko Araki
- Department of Health and Social Services, Graduate School of Health and Environment Sciences, Tohoku Bunka Gakuen University, Miyagi, Japan
| | - Takemi Kudo
- Department of Health and Social Services, Graduate School of Health and Environment Sciences, Tohoku Bunka Gakuen University, Miyagi, Japan
| | - Takao Watanabe
- Department of Health and Social Services, Graduate School of Health and Environment Sciences, Tohoku Bunka Gakuen University, Miyagi, Japan
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Harigai A, Saito AI, Inoue T, Suzuki M, Namba Y, Suzuki Y, Makino F, Nagashima O, Sasaki S, Sasai K. The prognostic value of 18F-FDG PET/CT taken immediately after completion of radiotherapy for lung cancer treated with concurrent chemoradiotherapy: A pilot study. Cancer Radiother 2022; 26:711-716. [PMID: 35715357 DOI: 10.1016/j.canrad.2022.01.006] [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: 08/14/2021] [Revised: 12/10/2021] [Accepted: 01/13/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE The prognostic value of F-18 fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) taken immediately after completion of radiotherapy in lung cancer patients is not well known. The purpose of this study is to assess the prognostic value of PET/CT taken immediately after completion of radiotherapy in lung cancer patients. MATERIALS AND METHODS Patients with primary lung cancer planned to undergo concurrent chemoradiotherapy were enrolled. Patients underwent PET/CT scans at 3 time points: before radiotherapy, within 24hours of completing radiotherapy (im-PET/CT), and 2-9 months after radiotherapy (post-PET/CT). Maximum standardized uptake value (SUVmax) was obtained. A post-PET/CT-SUVmax cut-off of 2.5 was determined as radiotherapy success. RESULTS Nineteen patients were enrolled. im-PET/CT-SUVmax for patients in the high post-PET/CT-SUVmax group was significantly higher than that of the low group (P=0.004). Receiver operator curve analysis indicated that im-PET/CT-SUVmax of 4.35 was an optimal cut-off value to discriminate between the two groups. Multivariable analysis showed that a high im-PET/CT-SUVmax was significantly associated with a high post-PET/CT-SUVmax (P=0.003). CONCLUSION PET/CT-SUVmax taken immediately following radiotherapy was associated with that evaluated 2-9 months after radiotherapy.
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Affiliation(s)
- A Harigai
- Clinical training center, Juntendo university, Urayasu hospital, 2-1-1 Tomioka Urayasushi, Chiba, Japan
| | - A I Saito
- Department of radiation oncology, Juntendo university, faculty of medicine, Tokyo, Japan.
| | - T Inoue
- Department of radiation oncology, Juntendo university, faculty of medicine, Tokyo, Japan
| | - M Suzuki
- Department of radiology, Juntendo Tokyo Koto geriatric medical center, Tokyo, Japan
| | - Y Namba
- Department of respiratory medicine, Juntendo university, Urayasu hospital, Chiba, Japan
| | - Y Suzuki
- Department of respiratory medicine, Juntendo university, Urayasu hospital, Chiba, Japan
| | - F Makino
- Department of respiratory medicine, Juntendo university, Urayasu hospital, Chiba, Japan
| | - O Nagashima
- Department of respiratory medicine, Juntendo university, Urayasu hospital, Chiba, Japan
| | - S Sasaki
- Department of respiratory medicine, Juntendo university, Urayasu hospital, Chiba, Japan
| | - K Sasai
- Department of radiation oncology, Juntendo university, faculty of medicine, Tokyo, Japan
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Michigami M, Ramanayake Mudiyanselage TMR, Suzuki M, Ishizako H, Notsu K, Sugiura K, Fujii I. New Class of Drug Modalities: Directed Evolution of a De Novo Designed Helix-Loop-Helix Peptide to Bind VEGF for Tumor Growth Inhibition. ACS Chem Biol 2022; 17:647-653. [PMID: 35176860 DOI: 10.1021/acschembio.1c00940] [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] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
As a small affinity molecule to serve as an alternative to antibodies, we have developed a conformationally constrained peptide with a de novo designed helix-loop-helix (HLH) scaffold. To evaluate its potential for biomedical applications, we performed directed evolution of HLH peptides to obtain an inhibitor for vascular endothelial growth factor-A (VEGF). A phage-displayed library of HLH peptides was constructed and screened against VEGF, giving the peptide VS42 that inhibits the VEGF/VEGF receptor-2 interaction (IC50 = 210 nM), which was further improved by in vitro affinity maturation using a yeast-displayed library. An identified HLH peptide, VS42-LR3, exhibited improved inhibitory activity (IC50 = 37 nM), high thermal stability, and excellent resistance against chemical denaturation. In biological activity tests, the HLH peptide was found to block VEGF-induced proliferation of human umbilical vein endothelial cells and suppress tumor growth in a murine xenograft model of human colorectal cancer.
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Affiliation(s)
- Masataka Michigami
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Tharanga M. R. Ramanayake Mudiyanselage
- Department of Veterinary Science, Graduate School of Life and Environmental Science, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Miho Suzuki
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Hirotsugu Ishizako
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Kunpei Notsu
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Kikuya Sugiura
- Department of Veterinary Science, Graduate School of Life and Environmental Science, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
| | - Ikuo Fujii
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
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Abe S, Ezaki O, Suzuki M. Effects of Timing of Medium-Chain Triglycerides (8:0 and 10:0) Supplementation during the Day on Muscle Mass, Function and Cognition in Frail Elderly Adults. J Frailty Aging 2022; 11:100-108. [PMID: 35122097 DOI: 10.14283/jfa.2021.33] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVES Supplementation with 6 g/day of medium-chain triglycerides (MCTs) at dinnertime increases muscle function and cognition in frail elderly adults relative to supplementation with long-chain triglycerides. However, suitable timing of MCT supplementation during the day is unknown. DESIGN We enrolled 40 elderly nursing home residents (85.9 ± 7.7 years) in a 1.5-month randomized intervention trial. Participants were randomly allocated to two groups: one received 6 g/day of MCTs at breakfast (breakfast group) as a test group and the other at dinnertime (dinner group) as a positive control group. MEASUREMENTS Muscle mass, strength, function, and cognition were monitored at baseline and 1.5 months after initiation of intervention. RESULTS Thirty-seven participants completed the study and were included in the analysis. MCT supplementation in breakfast and dinner groups respectively increased right arm muscle area from baseline by 1.1 ± 0.8 cm2 (P<0.001) and 1.6 ± 2.5 cm2 (P<0.001), left arm muscle area by 1.1 ± 0.7 cm2 (P<0.001) and 0.9 ± 1.0 cm2 (P<0.01), right knee extension time by 39 ± 42 s (P<0.01) and 20 ± 32 s (P<0.05), leg open and close test time by 1.74 ± 2.00 n/10 s (P<0.01) and 1.67 ± 2.01 n/10 s (P<0.01), and Mini-Mental State Examination score by 1.5 ± 3.0 points (P=0.06) and 1.0 ± 2.1 points (P=0.06). These increases between two groups did not differ statistically significantly. CONCLUSION Supplementation with 6 g MCTs/day for 1.5 months, irrespective of ingestion at breakfast or dinnertime, could increase muscle mass and function, and cognition in frail elderly adults.
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Affiliation(s)
- S Abe
- Osamu Ezaki, M.D. Institute of Women's Health Science, Showa Women's University, 1-7-57 Taishido, Setagaya-ku, Tokyo 154-8533, Japan, Tel: +81-3-3411-7450; Fax: +81-3-3411-7450, E-mail:
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Shimizu M, Miyazaki H, Cho S, Misu Y, Tateishi R, Yamaguchi M, Yamakami Y, Shimada H, Manno T, Isshiki A, Kimura S, Fujii H, Suzuki M, Nishizaki M, Sasano T. Prognostic value of machine learning for acute heart failure. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.050] [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
Funding Acknowledgements
Type of funding sources: None.
Background
At onset of acute heart failure (AHF), various clinical fundamental parameters including vital sign, laboratory data, or initial treatment were investigated, and we can roughly estimate the prognosis. However, machine learning method for prediction of the prognosis was not studied.
Purpose
To elucidate prognostic value of machine learning for AHF comparing conventional statistical model.
Methods
We enrolled consecutive 300 patients with AHF (79.5 ± 12.1 years, 158 Males). Patients with acute coronary syndrome, mechanical circulatory support cases, and cardio-pulmonary arrest cases were excluded. The patients were randomly divided into 80% (240 cases) and 20% (60 cases), and the former was used as train data, and the latter as validation data. Objective variable was set as cardiac death in one year. First, logistic regression analysis with Akaike’s information criterion (AIC) was performed, and extracted predictive parameters. The predictive model for the cardiac prognosis was constructed by cut-off value of ROC curve analysis of propensity score was calculated. Next, machine learning (random forest method and deep learning) to build predictive model was performed with the predictors. Finally, accuracy of each predictive model was compared.
Results
Thirty cases showed cardiac death in one year. Logistic regression with AIC extracted 8 predictors, and the cut off-value of propensity score with the 6 parameters was 0.110. The accuracy was 0.714 and area under ROC (AUROC) was 0.836. Conversely, random forest method demonstrated the accuracy as 0.927, AUROC 0.860. On deep learning, the accuracy was 0.937 and AUROC 0.901.
The top 4 high feature importance of random forest were Cl/red blood cell count/pH/Anion Gap. However, accuracy of those predictors was lower than that of machine learning.
Conclusion
Machine learning was a powerful tool to predict cardiac prognosis of AHF, comparing with conventional statistical model. Abstract Figure. Statistical model
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Affiliation(s)
- M Shimizu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Miyazaki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Cho
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Misu
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - R Tateishi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Yamaguchi
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - Y Yamakami
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Shimada
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - A Isshiki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - H Fujii
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | | | - T Sasano
- Tokyo Medical And Dental University, Tokyo, Japan
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Kitabatake T, Takayama K, Tominaga T, Hayashi Y, Seto I, Yamaguchi H, Suzuki M, Wada H, Kikuchi Y, Murakami M, Mitsudo K. Treatment outcomes of proton beam therapy combined with retrograde intra-arterial infusion chemotherapy for locally advanced oral cancer in the elderly. Int J Oral Maxillofac Surg 2022; 51:1264-1272. [DOI: 10.1016/j.ijom.2022.01.014] [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] [Received: 07/13/2021] [Revised: 11/04/2021] [Accepted: 01/20/2022] [Indexed: 11/16/2022]
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Seki S, Suzuki M, Ishibashi M, Takagi R, Khanh ND, Shiota Y, Shibata K, Koshibae W, Tokura Y, Ono T. Direct visualization of the three-dimensional shape of skyrmion strings in a noncentrosymmetric magnet. Nat Mater 2022; 21:181-187. [PMID: 34764432 DOI: 10.1038/s41563-021-01141-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 09/23/2021] [Indexed: 05/21/2023]
Abstract
Magnetic skyrmions are topologically stable swirling spin textures that appear as particle-like objects in two-dimensional (2D) systems. Here, utilizing scalar magnetic X-ray tomography under applied magnetic fields, we report the direct visualization of the three-dimensional (3D) shape of individual skyrmion strings in the room-temperature skyrmion-hosting non-centrosymmetric compound Mn1.4Pt0.9Pd0.1Sn. Through the tomographic reconstruction of the 3D distribution of the [001] magnetization component on the basis of transmission images taken at various angles, we identify a skyrmion string running through the entire thickness of the sample, as well as various defect structures, such as the interrupted and Y-shaped strings. The observed point defect may represent the Bloch point serving as an emergent magnetic monopole, as proposed theoretically. Our tomographic approach with a tunable magnetic field paves the way for direct visualization of the structural dynamics of individual skyrmion strings in 3D space, which will contribute to a better understanding of the creation, annihilation and transfer of these topological objects.
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Affiliation(s)
- S Seki
- Department of Applied Physics, University of Tokyo, Tokyo, Japan.
- Institute of Engineering Innovation, University of Tokyo, Tokyo, Japan.
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan.
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Japan.
| | - M Suzuki
- Japan Synchrotron Radiation Research Institute, Sayo, Japan.
- School of Engineering, Kwansei Gakuin University, Sanda, Japan.
| | - M Ishibashi
- Institute for Chemical Research, Kyoto University, Uji, Japan
| | - R Takagi
- Department of Applied Physics, University of Tokyo, Tokyo, Japan
- Institute of Engineering Innovation, University of Tokyo, Tokyo, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Japan
| | - N D Khanh
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan
| | - Y Shiota
- Institute for Chemical Research, Kyoto University, Uji, Japan
| | - K Shibata
- Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
| | - W Koshibae
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan
| | - Y Tokura
- Department of Applied Physics, University of Tokyo, Tokyo, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan
- Tokyo College, University of Tokyo, Tokyo, Japan
| | - T Ono
- Institute for Chemical Research, Kyoto University, Uji, Japan.
- Center for Spintronics Research Network, Graduate School of Engineering Science, Osaka University, Toyonaka, Japan.
- Center for Spintronics Research Network, Institute for Chemical Research, Kyoto University, Uji, Japan.
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Suzuki M, Wakayama R, Yamagata Z, Suzuki K. Effect of maternal smoking during pregnancy on gestational
weight gain and birthweight: A stratified analysis by
pregestational weight status. Tob Induc Dis 2022; 20:10. [PMID: 35125993 PMCID: PMC8796850 DOI: 10.18332/tid/143952] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/15/2021] [Accepted: 11/15/2021] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION METHODS RESULTS CONCLUSIONS
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Affiliation(s)
- Miho Suzuki
- Nagoya Bunri Nutrition College, Nagoya, Japan
- Graduate School of Human Life Science, Osaka City University, Osaka, Japan
- Department of Health and Psychosocial Medicine, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Rei Wakayama
- Department of Health and Psychosocial Medicine, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Zentaro Yamagata
- Department of Health Sciences, Graduate School of Medical Science, University of Yamanashi, Chuo, Japan
| | - Kohta Suzuki
- Department of Health and Psychosocial Medicine, Aichi Medical University School of Medicine, Nagakute, Japan
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Kono A, Yoshioka R, Hawk P, Iwashina K, Inoue D, Suzuki M, Narita C, Haruta K, Miyake A, Yoshida H, Tosaka N. A case of severe interstitial lung disease after COVID-19 vaccination. QJM 2022; 114:805-806. [PMID: 34618126 PMCID: PMC8522437 DOI: 10.1093/qjmed/hcab263] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Indexed: 11/17/2022] Open
Affiliation(s)
- A Kono
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
- Corresponding author contact information. Akira KONO, Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881). Mail: , TEL: +81-70-6557-8674
| | - R Yoshioka
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - P Hawk
- University of Shizuoka, 51-1 Yada Suruga ward, Shizuoka, Japan (zip code 422-8526)
| | - K Iwashina
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - D Inoue
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - M Suzuki
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - C Narita
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - K Haruta
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - A Miyake
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - H Yoshida
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - N Tosaka
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
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Shimizu Y, Suzuki M, Hata Y, Sakaki T. Influence of Perceived Ageism on Older Adults: Focus on Attitudes toward Young People and Life Satisfaction. Adv Gerontol 2022. [PMCID: PMC9774065 DOI: 10.1134/s2079057022040142] [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: 12/24/2022]
Abstract
The world’s population is aging, and intergenerational conflicts between older adults and young people are becoming more serious. This study focused on ageism as a cause of intergenerational conflicts and older adults’ diminished mental health status. We conducted an online survey of older Japanese participants (n = 1.096). Our results indicated that older adults who perceived more ageism directed toward them (1) had more negative attitudes toward young people and (2) had lower life satisfaction, which persisted even after controlling for variables such as old age identity and depressive tendencies. Accordingly, we suggest that ageism may reinforce intergenerational conflicts between older adults and young people and compromise older adults’ mental health status. The findings of this study can aid gerontological and psychological research aimed at reducing ageism.
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Affiliation(s)
- Y. Shimizu
- The University of Tokyo, 7-3-1 Hongo, 113-0033 Bunkyo-ku, Tokyo Japan ,Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, 102-0083 Tokyo, Japan
| | - M. Suzuki
- Sompo Holdings, Inc., 1-26-1 Nishi-Shinjyuku, Shinjyuku-ku, 160-8338 Tokyo, Japan
| | - Y. Hata
- SAT Laboratory LLC, 3-20 Matsunouchi-cho, 659-0094 Ashiya, Hyogo Japan
| | - T. Sakaki
- SAT Laboratory LLC, 3-20 Matsunouchi-cho, 659-0094 Ashiya, Hyogo Japan
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Otobe Y, Kimura Y, Suzuki M, Koyama S, Kojima I, Yamada M. Factors Associated with Increased Caregiver Burden of Informal Caregivers during the COVID-19 Pandemic in Japan. J Nutr Health Aging 2022; 26:157-160. [PMID: 35166308 PMCID: PMC8783575 DOI: 10.1007/s12603-022-1730-y] [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] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/07/2022] [Indexed: 11/29/2022]
Abstract
This study's objective was to explore the association between various factors and the increased caregiver burden of informal caregivers during the COVID-19 pandemic. On February, 2021, 700 informal caregivers completed an online survey. We assessed the change in caregiver burden during the COVID-19 pandemic. Among all caregiver participants, 287 (41.0%) complained of an increased caregiver burden due to the COVID-19 pandemic. The factors associated with increased caregiver burden were depressive symptoms in caregivers [odds ratio (OR), 2.20; 95% confidence interval (CI), 1.50-3.23], dementia (OR, 2.48; 95%CI, 1.07-5.73) and low Barthel Index scores (OR, 2.01; 95%CI, 1.39-2.90) in care receivers, care days (OR, 1.09; 95%CI, 1.01-1.17) and times (OR, 1.06; 95%CI, 1.01-1.10), and use of home care service (OR, 1.46; 95%CI, 1.01-2.10) and visiting care service (OR, 1.71; 95%CI, 1.20-2.45). These findings suggest we need to pay attention to the physical and mental health of both the care receivers and caregivers.
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Affiliation(s)
- Y Otobe
- Yuhei Otobe, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan, 3-29-1 Otsuka, Bunkyo-ku, Tokyo, 112-0012, Japan, Tel: +81-29-853-2111, E-mail:
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Yamada T, Miki Y, Suzuki M, Kondoh O, Saito-Koyama R, Ono K, Okada Y, Sasano H. B7-1 and programmed cell death-ligand 1 in primary and lymph node metastasis lesions of non-small cell lung carcinoma. Cancer Med 2021; 11:479-491. [PMID: 34907653 PMCID: PMC8729051 DOI: 10.1002/cam4.4444] [Citation(s) in RCA: 3] [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: 07/26/2021] [Revised: 11/08/2021] [Accepted: 11/13/2021] [Indexed: 12/14/2022] Open
Abstract
Background Programmed cell death ligand 1 (PD‐L1) status has been reported to be different between metastatic and primary lesions in some cases. Therefore, the interaction between carcinoma and immune cells could influence their expression in the tumor microenvironment. PD‐L1 is known to bind not only to Programmed cell death 1 (PD‐1) but also to B7‐1 (CD80). In this study, we examined the interaction between lung carcinoma cell lines and peripheral blood mononuclear cells (PBMCs) in vitro. We then examined the significance of B7‐1 expression non‐small cell lung cancer (NSCLC) microenvironment. Methods The interaction of lung carcinoma cell lines and PBMC through the soluble factors was analyzed using a co‐culture system. The changes in expression of immune checkpoint‐related factors in PBMC were examined by PD‐1/PD‐L1 Checkpoint Pathway qPCR Array Kit. B7‐1 expression in NSCLC tissues was examined by immunohistochemistry. Results B7‐1 was upregulated following the co‐culture with the lung carcinoma cell lines. B7‐1 expression in NSCLC tissues was significantly higher in smokers and squamous cell carcinomas and was significantly positively correlated with PD‐L1 status in primary cancer. However, B7‐1 and PD‐1 were not correlated between primary and metastatic diseases in the same patients. Conclusion PD‐1 inhibitors inhibited PD‐1/PD‐L1 binding but not PD‐L1/B7‐1 binding. These results demonstrated that the intratumoral ratio of B7‐1 positive T cells in NSCLC tissue could be involved in the therapeutic efficacy of PD‐L1 inhibitors. This study focused on lymph node metastasis but other sites of distant metastases should be explored by further analysis.
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Affiliation(s)
- Takehiro Yamada
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.,Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yasuhiro Miki
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Miho Suzuki
- Product Research Department, Chugai Pharmaceutical Co., Ltd, Kamakura, Japan
| | - Osamu Kondoh
- Product Research Department, Chugai Pharmaceutical Co., Ltd, Kamakura, Japan
| | - Ryoko Saito-Koyama
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Katsuhiko Ono
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshinori Okada
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Nomura S, Eguchi A, Tanoue Y, Yoneoka D, Kawashima T, Suzuki M, Hashizume M. Excess deaths from COVID-19 in Japan and 47 prefectures from January through June 2021. Public Health 2021; 203:15-18. [PMID: 35016070 PMCID: PMC8742134 DOI: 10.1016/j.puhe.2021.11.023] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/12/2021] [Accepted: 11/27/2021] [Indexed: 11/18/2022]
Abstract
Objectives In Japan, several studies have reported no excess all-cause deaths (the difference between the observed and expected number of deaths) during the coronavirus disease 2019 (COVID-19) pandemic in 2020. This study aimed to estimate the weekly excess deaths in Japan's 47 prefectures for 2021 until June 27. Study design Vital statistical data on deaths were obtained from the Ministry of Health, Labour and Welfare of Japan. For this analysis, we used data from January 2012 to June 2021. Methods A quasi-Poisson regression was used to estimate the expected weekly number of deaths. Excess deaths were expressed as the range of differences between the observed and expected number of all-cause deaths and the 95% upper bound of the one-sided prediction interval. Results Since January 2021, excess deaths were observed for the first time in the week corresponding to April 12–18 and have continued through mid-June, with the highest excess percentage occurring in the week corresponding to May 31–June 6 (excess deaths: 1431–2587; excess percentage: 5.95–10.77%). Similarly, excess deaths were observed in consecutive weeks from April to June 2021 in 18 of 47 prefectures. Conclusions For the first time since February 2020, when the first COVID-19 death was reported in Japan, excess deaths possibly related to COVID-19 were observed in April 2021 in Japan, during the fourth wave. This may reflect the deaths of non-infected people owing to the disruption that the pandemic has caused.
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Affiliation(s)
- S Nomura
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan; Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Tokyo Foundation for Policy Research, Tokyo, Japan.
| | - A Eguchi
- Department of Sustainable Health Science, Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Y Tanoue
- Institute for Business and Finance, Waseda University, Tokyo, Japan
| | - D Yoneoka
- Graduate School of Public Health, St. Luke's International University, Tokyo, Japan; Tokyo Foundation for Policy Research, Tokyo, Japan
| | - T Kawashima
- Department of Mathematical and Computing Science, Tokyo Institute of Technology, Tokyo, Japan
| | - M Suzuki
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Tokyo, Japan
| | - M Hashizume
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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