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Oka S, Harada K, Yamamoto S, Yasutomi E, Igawa S, Ohmori M, Hirai M, Yamasaki Y, Inokuchi T, Kinugasa H, Takahara M, Hiraoka S, Okada H. Low Patient Weight and Long Intubation Time Are Key Factors for Pain during Colonoscopy. Acta Med Okayama 2023; 77:471-478. [PMID: 37899258 DOI: 10.18926/amo/65969] [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] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Although the clinical usefulness of colonoscopy has been established, the procedure remains painful for many patients. This study was designed to clarify the factors predicting colonoscopy-related pain. We evaluated 283 consecutive patients who completed a first-ever, total colonoscopy without sedatives or analgesics. The severity of pain symptoms was evaluated by a numeric rating scale (NRS) in a questionnaire immediately after the colonoscopy. Patient backgrounds and endoscopic findings were analyzed to evaluate their association with pain. Out of 283 patients, 53 scored their pain 0-1 on the NRS while 48 scored it 6-10. We defined the colonoscopies of the former and latter patients as painless and painful, respectively, and compared the two. Multivariate analyses revealed that low body weight (OR 4.95, 95%CI 1.89-12.99) and longer intubation time (OR 3.63, 95%CI 1.46-9.03) were significant risk factors for painful colonoscopy. To identify factors contributing to the increased intubation time, we divided subjects into short- and long-intubation-time groups based on a median insertion time of 7 min. Older age (OR 2.28, 95%CI 1.31-3.98), previous abdominal surgery (OR 1.93, 95%CI 1.13-3.32) and findings of invasive cancer (OR 10.90, 95%CI 1.34-88.90) were significant factors for longer intubation time.
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Affiliation(s)
- Shohei Oka
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Keita Harada
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Shumpei Yamamoto
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Eriko Yasutomi
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Shoko Igawa
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Masayasu Ohmori
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Mami Hirai
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yasushi Yamasaki
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Toshihiro Inokuchi
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Hideaki Kinugasa
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Masahiro Takahara
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Sakiko Hiraoka
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Hiroyuki Okada
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Hirai R, Hirai M, Otsuka M, Mitsuhashi T, Shimodate Y, Mouri H, Matsueda K, Yamamoto H, Mizuno M. Endoscopic evaluation by the Kyoto classification of gastritis combined with serum anti-Helicobacter pylori antibody testing reliably risk-stratifies subjects in a population-based gastric cancer screening program. J Gastroenterol 2023; 58:848-855. [PMID: 37340218 PMCID: PMC10423159 DOI: 10.1007/s00535-023-02010-w] [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: 02/16/2023] [Accepted: 06/09/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND We previously demonstrated that the Kyoto classification of gastritis was useful for judging the status of Helicobacter pylori infection in a population-based screening program, and that adding H. pylori antibody test improved its accuracy (UMIN000028629). Here, we tested whether our endoscopic diagnosis of H. pylori infection status reliably estimated gastric cancer risk in the program. METHODS Data were collected from1345 subjects who underwent endoscopic follow-up 4 years after the end of the registration. We analyzed the association of three diagnostic methods of H. pylori infection with gastric cancer detection: (1) endoscopic diagnosis based on the Kyoto classification of gastritis; (2) serum diagnosis according to the ABC method (H. pylori antibody and pepsinogen I and II); and (3) endoscopic diagnosis together with H. pylori antibody test. RESULTS During the follow-up, 19 cases of gastric cancer were detected. By Kaplan-Meier analysis, the detection rates of cancer were significantly higher in the past or current H. pylori infection groups than in the never-infected group with all 3 methods. By the Cox proportional hazards model, the hazard ratio for cancer detection was highest in evaluation with the combined endoscopic diagnosis and the antibody test (method 3; hazard ratio 22.6, 95% confidence interval 2.99-171) among the three methods (the endoscopic diagnosis (method 1); 11.3, 2.58-49.8, and the ABC method (method 2); 7.52, 2.49-22.7). CONCLUSIONS Endoscopic evaluation of H. pylori status with the Kyoto classification of gastritis, especially combined with serum anti-Helicobacter pylori antibody testing, reliably risk-stratified subjects in a population-based gastric cancer screening program.
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Affiliation(s)
- Ryosuke Hirai
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1, Shikata, Kitaku, Okayama, Okayama, 700-8558, Japan.
| | - Mami Hirai
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1, Shikata, Kitaku, Okayama, Okayama, 700-8558, Japan
| | - Motoyuki Otsuka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1, Shikata, Kitaku, Okayama, Okayama, 700-8558, Japan
| | - Toshiharu Mitsuhashi
- Center for Innovative Clinical Medicine, Okayama University Hospital, 2-5-1, Shikata, Kitaku, Okayama, Okayama, 700-8558, Japan
| | - Yuichi Shimodate
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Hirokazu Mouri
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Kazuhiro Matsueda
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Hiroshi Yamamoto
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Motowo Mizuno
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
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Yamamoto S, Kinugasa H, Yamasaki Y, Hirai M, Ako S, Takei K, Igawa S, Yasutomi E, Oka S, Ohmori M, Inokuchi T, Harada K, Hiraoka S, Nouso K, Tanaka T, Okada H. Fever and electrocoagulation syndrome after colorectal endoscopic submucosal dissection for patients with immunosuppressants and steroids. DEN Open 2022; 2:e83. [PMID: 35310725 PMCID: PMC8828197 DOI: 10.1002/deo2.83] [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] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 10/06/2021] [Accepted: 11/20/2021] [Indexed: 11/10/2022]
Abstract
Objectives Transient fever and electrocoagulation syndrome after colorectal endoscopic submucosal dissection (ESD) remain a challenge. The aim of this study was to assess the risk factors of post‐ESD fever and post‐ESD coagulation syndrome (PECS), focusing on the involvement of immunosuppressive drugs and steroids (IM). Methods This retrospective analysis included 510 patients who underwent colorectal ESD at Okayama University Hospital from 2015 to 2020. The incidence rate, clinical outcome, and factors associated with post‐ESD fever and PECS were investigated. Results Post‐ESD fever and PECS occurred in 63 patients (12.4%) and 43 patients (8.4%), respectively. In multivariate analysis, the American Society of Anesthesiologists Physical Status ≥3, the use of immunosuppressants or prednisolone ≥5mg (IM group), and injury to muscle layer/perforation were significantly associated with post‐ESD fever. In PECS, IM group, tumors located on the right side, treatment time ≥60 min, injury to the muscle layer, and multiple lesions were independent risk factors. Both post‐ESD fever and PECS improved conservatively in the IM group, and no serious complication was observed. Conclusions The use of IM was a risk factor for both post‐ESD fever and PECS. However, there were no serious complications in colorectal ESD for patients taking IM.
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Affiliation(s)
- Shumpei Yamamoto
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Hideaki Kinugasa
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Yasushi Yamasaki
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Mami Hirai
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Soichiro Ako
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Kensuke Takei
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Shoko Igawa
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Eriko Yasutomi
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Shohei Oka
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Masayasu Ohmori
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Toshihiro Inokuchi
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Keita Harada
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Kazuhiro Nouso
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Takehiro Tanaka
- Department of Pathology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University Okayama Japan
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Hirai M, Toya Y, Kikuchi A, Yanai S, Tabayashi A, Matsumoto T. Rare cause of lower gastrointestinal bleeding: Iliac aneurysmo-colonic fistula after endovascular treatment. J Gastroenterol Hepatol 2022; 37:417. [PMID: 34414602 DOI: 10.1111/jgh.15651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/29/2021] [Accepted: 08/04/2021] [Indexed: 12/09/2022]
Affiliation(s)
- M Hirai
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Yahaba, Japan
| | - Y Toya
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Yahaba, Japan
| | - A Kikuchi
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Yahaba, Japan
| | - S Yanai
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Yahaba, Japan
| | - A Tabayashi
- Department of Cardiovascular Surgery, School of Medicine, Iwate Medical University, Yahaba, Japan
| | - T Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Yahaba, Japan
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Terasawa H, Kinugasa H, Nouso K, Yamamoto S, Hirai M, Tanaka T, Takaki A, Okada H. Circulating tumor DNA dynamics analysis in a xenograft mouse model with esophageal squamous cell carcinoma. World J Gastroenterol 2021; 27:7134-7143. [PMID: 34887633 PMCID: PMC8613646 DOI: 10.3748/wjg.v27.i41.7134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/21/2021] [Accepted: 08/30/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND It remains unclear which factors, such as tumor volume and tumor invasion, influence circulating tumor DNA (ctDNA), and the origin of ctDNA in liquid biopsy is always problematic. To use liquid biopsies clinically, it will be very important to address these questions.
AIM To assess the origin of ctDNA, clarify the dynamics of ctDNA levels, assess ctDNA levels by using a xenograft mouse after treatment, and to determine whether tumor volume and invasion are related to ctDNA levels.
METHODS Tumor xenotransplants were established by inoculating BALB/c-nu/nu mice with the TE11 cell line. Groups of mice were injected with xenografts at two or four sites and sacrificed at the appropriate time point after xenotransplantation for ctDNA analysis. Analysis of ctDNA was performed by droplet digital PCR, using the human telomerase reverse transcriptase (hTERT) gene.
RESULTS Mice given two-site xenografts were sacrificed for ctDNA at week 4 and week 8. No hTERT was detected at week 4, but it was detected at week 8. However, in four-site xenograft mice, hTERT was detected both at week 4 and week 6. These experiments revealed that both tumor invasion and tumor volume were associated with the detection of ctDNA. In resection experiments, hTERT was detected at resection, but had decreased by 6 h, and was no longer detected 1 and 3 d after resection.
CONCLUSION We clarified the origin and dynamics of ctDNA, showing that tumor volume is an important factor. We also found that when the tumor was completely resected, ctDNA was absent after one or more days.
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Affiliation(s)
- Hiroyuki Terasawa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
| | - Hideaki Kinugasa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
| | - Kazuhiro Nouso
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
| | - Shumpei Yamamoto
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
| | - Mami Hirai
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
| | - Akinobu Takaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 7008558, Japan
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Hirai R, Hirai M, Shimodate Y, Minami M, Ishikawa S, Kanadani T, Takezawa R, Doi A, Nishimura N, Mouri H, Matsueda K, Yamamoto H, Mizuno M. Feasibility of endoscopic evaluation of Helicobacter pylori infection status by using the Kyoto classification of gastritis in the population-based gastric cancer screening program: A prospective cohort study. Health Sci Rep 2021; 4:e325. [PMID: 34277955 PMCID: PMC8279217 DOI: 10.1002/hsr2.325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND AIMS We have started a new population-based endoscopic gastric cancer screening program in Kurashiki city with consideration of Helicobacter pylori infection status based on endoscopic features. We aimed to verify the feasibility of this attempt in a prospective case-registration study (UMIN000028629). METHODS Data were collected from 1784 subjects without past eradication of H. pylori and who underwent endoscopic gastric cancer screening in Kurashiki Central Hospital Preventive Healthcare Plaza from September 2017 to June 2018. Endoscopic judgment of H. pylori infection status was made according to the Kyoto classification of gastritis. For comparison, a combination serum test of anti-H. pylori antibody and pepsinogen I and II, the ABC method, was used. RESULTS The endoscopic diagnoses were nongastritis, 1215 (68.1%); active or inactive gastritis, 469 (26.3%); and undefined, 23 (1.3%). With the ABC method as a reference standard, the false-negative rate of the endoscopic judgment for H. pylori infection was 16.3% (95% confidence interval: 13.1%-20.0%). Most false-negative cases were of Group B in the ABC method, which is considered gastritis with mild mucosal atrophy. Antibody titers in this population were mostly in the weak-positive range but clinically significant elevation of the antibody suggesting current infection was observed in some cases. CONCLUSIONS Endoscopic diagnosis of H. pylori infection status in a population-based gastric cancer screening program is mostly reliable, but false-negative results may occur, especially in patients with mild gastric atrophy. To avoid this limitation, we recommend adding H. pylori antibody test to the program.
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Affiliation(s)
- Ryosuke Hirai
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Mami Hirai
- Department of Gastroenterology and HepatologyOkayama University HospitalOkayamaJapan
| | - Yuichi Shimodate
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Mariko Minami
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Sho Ishikawa
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Takafumi Kanadani
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Rio Takezawa
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Akira Doi
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Naoyuki Nishimura
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Hirokazu Mouri
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Kazuhiro Matsueda
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Hiroshi Yamamoto
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
| | - Motowo Mizuno
- Department of Gastroenterology and HepatologyKurashiki Central HospitalOkayamaJapan
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Yamasaki Y, Harada K, Yamamoto S, Yasutomi E, Hirai M, Ohmori M, Oka S, Inokuchi T, Kinugasa H, Sugihara Y, Takahara M, Hiraoka S, Tanaka T, Mitsuhashi T, Okada H. Evaluation of complete cold forceps polypectomy resection rate for 3- to 5-mm colorectal polyps. Dig Endosc 2021; 33:948-954. [PMID: 33211353 DOI: 10.1111/den.13895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/16/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND STUDY AIMS The propriety of cold forceps polypectomy (CFP) using jumbo biopsy forceps for diminutive polyps remains controversial. We conducted a prospective study to evaluate the complete CFP resection rate of 3-5-mm polyps using additional endoscopic mucosal resection (EMR) specimens following CFP. PATIENTS AND METHODS Patients with 3-5-mm protruded or flat elevated colorectal polyps diagnosed endoscopically as adenomas or serrated lesions were prospectively enrolled. CFP using jumbo biopsy forceps was used to remove the eligible polyps and repeated until the absence of residuals were confirmed via image-enhanced endoscopy or chromoendoscopy. After CFP, saline was injected at the defect, and the marginal specimen of the defect was resected using EMR to histologically evaluate the residue. The primary outcome was the complete CFP resection rate, which was defined as no residue at the EMR site. Other outcomes were the number of CFP bites and the complete resection rate by lesion size. RESULTS Eighty patients with 120 polyps were enrolled. The mean polyp size was 4.1 ± 0.7 mm. The overall complete resection rate was 96.7% (95% confidence interval [CI], 91.7-98.7), and the rates for 3-, 4- and 5-mm polyps were 100% (95% CI, 86.7-100), 96.0% (95% CI, 86.5-98.9) and 95.5% (95% CI, 85.1-98.8), respectively. The one-bite CFP rates were 92%, 60% and 31% for the 3-, 4- and 5-mm polyps, respectively. CONCLUSIONS The complete CFP resection rate for 3-5-mm polyps was acceptable, although the one-bite clearance rate decreased as the polyp size increased (UMIN000028841).
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Affiliation(s)
- Yasushi Yamasaki
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Keita Harada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Shumpei Yamamoto
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Eriko Yasutomi
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Mami Hirai
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Masayasu Ohmori
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Shohei Oka
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Toshihiro Inokuchi
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hideaki Kinugasa
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Yuusaku Sugihara
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Masahiro Takahara
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Sakiko Hiraoka
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiharu Mitsuhashi
- Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
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Yamamoto S, Kinugasa H, Hirai M, Terasawa H, Yasutomi E, Oka S, Ohmori M, Yamasaki Y, Inokuchi T, Harada K, Hiraoka S, Nouso K, Tanaka T, Teraishi F, Fujiwara T, Okada H. Heterogeneous distribution of Fusobacterium nucleatum in the progression of colorectal cancer. J Gastroenterol Hepatol 2021; 36:1869-1876. [PMID: 33242360 DOI: 10.1111/jgh.15361] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/24/2020] [Accepted: 11/20/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIM Fusobacterium nucleatum (Fn) is involved in colorectal cancer (CRC) growth and is a biomarker for patient prognosis and management. However, the ecology of Fn in CRC and the distribution of intratumoral Fn are unknown. METHODS We evaluated Fn and the status of KRAS and BRAF in 200 colorectal neoplasms (118 adenomas and 82 cancers) and 149 matched adjacent normal mucosas. The differentiation status between "surface" and "deep" areas of cancer tissue and matched normal mucosa were analyzed in 46 surgical samples; the Ki-67 index was also evaluated in these samples. RESULTS Fusobacterium nucleatum presence in the tumor increased according to pathological stage (5.9% [adenoma] to 81.8% [stage III/IV]), while Fn presence in normal mucosa also increased (7.6% [adenoma] to 40.9% [stage III/IV]). The detection rates of Fn on the tumor surface and in deep areas were 45.7% and 32.6%, while that of normal mucosa were 26.1% and 23.9%, respectively. Stage III/IV tumors showed high Fn surface area expression (66.7%). Fn intratumoral heterogeneity (34.8%) was higher than that of KRAS (4.3%; P < 0.001) and BRAF (2.2%; P < 0.001). The Ki-67 index in Fn-positive cases was higher than that in negative cases (93.9% vs 89.0%; P = 0.01). CONCLUSIONS Fusobacterium nucleatum was strongly present in CRC superficial areas at stage III/IV. The presence of Fn in the deep areas of adjacent normal mucosa also increased. The intratumoral heterogeneity of Fn is important in the use of Fn as a biomarker, as Fn is associated with CRC proliferative capacity.
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Affiliation(s)
- Shumpei Yamamoto
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hideaki Kinugasa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Mami Hirai
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroyuki Terasawa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Eriko Yasutomi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Shohei Oka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Masayasu Ohmori
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Yasushi Yamasaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshihiro Inokuchi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Keita Harada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kazuhiro Nouso
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Fuminori Teraishi
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiyoshi Fujiwara
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Hirai M, Kinugasa H, Nouso K, Yamamoto S, Terasawa H, Onishi Y, Oyama A, Adachi T, Wada N, Sakata M, Yasunaka T, Onishi H, Shiraha H, Takaki A, Okada H. Prediction of the prognosis of advanced hepatocellular carcinoma by TERT promoter mutations in circulating tumor DNA. J Gastroenterol Hepatol 2021; 36:1118-1125. [PMID: 32830343 DOI: 10.1111/jgh.15227] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/23/2020] [Accepted: 08/15/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND ANDAIM Human telomerase reverse transcriptase (TERT) promoter mutations were the most prevalent mutations in patients with hepatocellular carcinoma (HCC). We tried to detect the mutations with plasma circulating tumor DNA (ctDNA) in patients with advanced HCC and elucidated their clinical utility. METHODS Circulating tumor DNA in plasma was extracted from 130 patients with advanced HCC who were treated with systemic chemotherapy (n = 86) or transcatheter arterial chemoembolization (n = 44), and TERT promoter mutations were examined with digital droplet polymerase chain reaction. The correlations between these mutations and the clinical outcome of patients were analyzed. RESULTS Of the 130 patients examined, 71 patients (54.6%) were positive for TERT promoter mutations in ctDNA, of which 64 patients were -124bp G > A and 10 were -146bp G > A. The presence of TERT promoter mutations was correlated with large intrahepatic tumor size (P = 0.05) and high des-gamma carboxyprothrombin (P = 0.005). Overall survival of the patients with the mutations was significantly shorter than those without them (P < 0.001), and the patients with high (≥ 1%) fractional abundance of the mutant alleles showed shorter survival than those with low (< 1%) fractional abundance. Multivariate analysis revealed that TERT promoter mutation (hazard ratio [HR]: 1.94; 95% confidence interval [CI], 1.18-3.24; P < 0.01), systemic chemotherapy (HR: 2.38; 95% CI, 1.29-4.57; P < 0.01), and vascular invasion (HR: 2.16; 95% CI, 1.22-3.76; P < 0.01) were significant factors for poor overall survival. CONCLUSIONS TERT promoter mutations in ctDNA were associated with short survival and could be a valuable biomarker for predicting the prognosis of patients with advanced HCC.
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Affiliation(s)
- Mami Hirai
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hideaki Kinugasa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kazuhiro Nouso
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Shumpei Yamamoto
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroyuki Terasawa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Yuma Onishi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Atsushi Oyama
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Takuya Adachi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Nozomu Wada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Masahiro Sakata
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Tetsuya Yasunaka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hideki Onishi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hidenori Shiraha
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Akinobu Takaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Kinugasa H, Hiraoka S, Nouso K, Yamamoto S, Hirai M, Terasawa H, Yasutomi E, Oka S, Ohmori M, Yamasaki Y, Inokuchi T, Takahara M, Harada K, Tanaka T, Okada H. Liquid biopsy for patients with IBD-associated neoplasia. BMC Cancer 2020; 20:1188. [PMID: 33272240 PMCID: PMC7712625 DOI: 10.1186/s12885-020-07699-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/26/2020] [Indexed: 12/18/2022] Open
Abstract
Background It is often difficult to diagnose inflammatory bowel disease (IBD)-associated neoplasia endoscopically due to background inflammation. In addition, due to the absence of sensitive tumor biomarkers, countermeasures against IBD-associated neoplasia are crucial. The purpose of this study is to develop a new diagnostic method through the application of liquid biopsy. Methods Ten patients with IBD-associated cancers and high-grade dysplasia (HGD) with preserved tumor tissue and blood were included. Tumor and non-tumor tissues were analyzed for 48 cancer-related genes using next-generation sequencing. Simultaneously, circulating tumor DNA (ctDNA) was analyzed for mutations in the target genes using digital PCR. Results Out of 10 patients, seven had IBD-related cancer and three had IBD-related HGD. Two patients had carcinoma in situ; moreover, three had stageII and two had stage III. To avoid false positives, the mutation rate cutoff was set at 5% based on the control results; seven of 10 (70%) tumor tissue samples were mutation-positive. Mutation frequencies for each gene were as follows: TP53 (20.9%; R136H), TP53 (25.0%; C110W), TP53 (8.5%; H140Q), TP53 (31.1%; R150W), TP53 (12.8%; R141H), KRAS (40.0%; G12V), and PIK3CA (34.1%; R 88Q). The same mutations were detected in the blood of these seven patients. However, no mutations were detected in the blood of the remaining three patients with no tumor tissue mutations. The concordance rate between tumor tissue DNA and blood ctDNA was 100%. Conclusion Blood liquid biopsy has the potential to be a new method for non-invasive diagnosis of IBD-associated neoplasia. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-020-07699-z.
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Affiliation(s)
- Hideaki Kinugasa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Kazuhiro Nouso
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Shumpei Yamamoto
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Mami Hirai
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Hiroyuki Terasawa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Eriko Yasutomi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Shohei Oka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Masayasu Ohmori
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Yasushi Yamasaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Toshihiro Inokuchi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Masahiro Takahara
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Keita Harada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
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Yamasaki Y, Harada K, Yamamoto S, Yasutomi E, Okanoue S, Hirai M, Oka S, Obayashi Y, Sakae H, Hamada K, Inokuchi T, Kinugasa H, Sugihara Y, Takahara M, Tanaka T, Hiraoka S, Kawahara Y, Okada H. Blue laser imaging and linked color imaging improve the color difference value and visibility of colorectal polyps in underwater conditions. Dig Endosc 2020; 32:791-800. [PMID: 31758860 DOI: 10.1111/den.13581] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/19/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIM Underwater endoscopic mucosal resection (UEMR) has become widespread for treating colorectal polyps. However, which observational mode is best suited for determining polyp margins underwater remains unclear. To determine the best mode, we analyzed three imaging modes: white light imaging (WLI), blue laser imaging (BLI) and linked color imaging (LCI). METHODS Images of consecutive colorectal polyps previously examined by these three modes before UEMR were analyzed according to the degree of underwater turbidity (transparent or cloudy). Color differences between the polyps and their surroundings were calculated using the Commission Internationale d'Eclairage Lab color space in which 3-D color parameters were expressed. Eight evaluators, who were blinded to the histology, scored the visibility from one (undetectable) to four (easily detectable) in both underwater conditions. The color differences and visibility scores were compared. RESULTS Seventy-three polyps were evaluated. Sixty-one polyps (44 adenomatous, 17 serrated) were observed under transparent conditions, and 12 polyps (seven adenomatous, five serrated) were observed under cloudy conditions. Under transparent conditions, color differences for the BLI (8.5) and LCI (7.9) were significantly higher than that of WLI (5.7; P < 0.001). Visibility scores for BLI (3.6) and LCI (3.4) were also higher than that of WLI (3.1; P < 0.0001). Under cloudy conditions, visibility scores for LCI (2.9) and WLI (2.7) were significantly higher than that of BLI (2.2; P < 0.0001 and P = 0.04, respectively). CONCLUSIONS BLI and LCI were better observational modes in transparent water; however, BLI was unsuitable for cloudy conditions.
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Affiliation(s)
- Yasushi Yamasaki
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Keita Harada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Shumpei Yamamoto
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Eriko Yasutomi
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Shotaro Okanoue
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Mami Hirai
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Shohei Oka
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Yuka Obayashi
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Sakae
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Kenta Hamada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Toshihiro Inokuchi
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hideaki Kinugasa
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Yuusaku Sugihara
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Masahiro Takahara
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Sakiko Hiraoka
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Yoshiro Kawahara
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
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Yasutomi E, Hiraoka S, Yamamoto S, Oka S, Hirai M, Yamasaki Y, Inokuchi T, Kinugasa H, Takahara M, Harada K, Kato J, Okada H. Switching between Three Types of Mesalazine Formulation and Sulfasalazine in Patients with Active Ulcerative Colitis Who Have Already Received High-Dose Treatment with These Agents. J Clin Med 2019; 8:E2109. [PMID: 31810227 PMCID: PMC6970226 DOI: 10.3390/jcm8122109] [Citation(s) in RCA: 5] [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: 11/18/2019] [Accepted: 11/27/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND AIM Oral mesalazine and sulfasalazine (SASP) are key drugs for treating ulcerative colitis (UC). The efficacy of switching from one of the several mesalazine formulations to another is largely unknown. This study assessed the efficacy of switching among three types of mesalazine formulation and SASP for UC therapy. METHODS UC patients receiving high-dose mesalazine/SASP who switched to other formulations due to disease activity were considered eligible. Efficacy was evaluated 2, 6, and 12 months after switching. RESULTS A total of 106 switches in 88 UC patients were analyzed. The efficacy at 2 months after switching was observed in 23/39 (59%) cases from any mesalazine formulation to SASP, in 18/55 (33%) cases from one mesalazine to another, and in 2/12 (17%) cases from SASP to any mesalazine formulation. Nine of 43 effective cases showed inefficacy or became intolerant post-switching. Delayed efficacy more than two months after switching was observed in four cases. Steroid-free remission was achieved in 42/106 (39%) cases-within 100 days in 35 of these cases (83%). CONCLUSIONS Switching from mesalazine to SASP was effective in more than half of cases. The efficacy of switching between mesalazine formulations was lower but may be worth attempting in clinical practice from a safety perspective.
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Affiliation(s)
- Eriko Yasutomi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Shumpei Yamamoto
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Shohei Oka
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Mami Hirai
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Yasushi Yamasaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Toshihiro Inokuchi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Hideaki Kinugasa
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Masahiro Takahara
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Keita Harada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
| | - Jun Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan;
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (E.Y.); (S.Y.); (S.O.); (M.H.); (Y.Y.); (T.I.); (H.K.); (M.T.); (K.H.); (H.O.)
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Terasawa H, Kinugasa H, Ako S, Hirai M, Matsushita H, Uchida D, Tomoda T, Matsumoto K, Horiguchi S, Kato H, Nouso K, Okada H. Utility of liquid biopsy using urine in patients with pancreatic ductal adenocarcinoma. Cancer Biol Ther 2019; 20:1348-1353. [PMID: 31328611 DOI: 10.1080/15384047.2019.1638685] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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] Open
Abstract
In recent years, liquid biopsy for blood and body fluid in cancer patients has attracted attention. However, there have been few reports of liquid biopsy focusing on urine of pancreatic ductal adenocarcinoma (PDAC). In 56 patients with PDAC, DNA was extracted from urine and plasma prior to treatment, and KRAS mutations were analyzed with droplet digital PCR to examine the mutation detection rate. Our study showed that KRAS mutations were found in 27 cases (48%) in urine and 27 cases (48%) in plasma. The detection rate of urine KRAS mutations varied by renal functions. The rates were 70% (14/20) and 36% (13/36) in the creatinine clearance rate (CCr) < 70 mL/min group and in the CCr ≥ 70 mL/min group, respectively (P = .024). Whereas, no influence of the CCr was observed in the detection rates of plasma KRAS mutations. The rates were 50% (10/20) and 47% (17/36) in cases with the CCr < 70 mL/min group and the CCr ≥ 70 mL/min group, respectively. Although the sample size was small, this study clearly indicated a new possibility of less invasive urine liquid biopsy in PDAC patients.
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Affiliation(s)
- Hiroyuki Terasawa
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Hideaki Kinugasa
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Soichiro Ako
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Mami Hirai
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Hiroshi Matsushita
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Daisuke Uchida
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Takeshi Tomoda
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Kazuyuki Matsumoto
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Shigeru Horiguchi
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Hironari Kato
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Kazuhiro Nouso
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine , Okayama , Japan
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Hirai M, Kobayashi Y, Miyazawa M, Kitahara H, Kawashiri S, Nakamura H. Matrix metalloproteinase-mediated regulation of programmed-death ligand in the human head and neck squamous cell carcinoma microenvironment. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy268.021] [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: 11/12/2022] Open
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Kitahara H, Kobayashi Y, Hirai M, Kawashiri S, Nakamura H. Eribulin demonstrate selectively high sensitivity to recurrent and/or metastatic head and neck squamous cell carcinoma (R/M HNSCC) cells and xenograft tumors. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy268.034] [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: 11/12/2022] Open
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Kondo K, Aoki S, Yamashita S, Ukai S, Sakamoto K, Hirai M, Kimura A. Ion irradiation effects on FeCrAl-ODS ferritic steel. Nuclear Materials and Energy 2018. [DOI: 10.1016/j.nme.2018.05.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Hirai M, Yamasaki Y, Harada K, Okada H. Underwater endoscopic mucosal resection for anal canal neoplasia in a patient with human immunodeficiency virus infection. Ann Gastroenterol 2018; 31:522. [PMID: 29991902 PMCID: PMC6033756 DOI: 10.20524/aog.2018.0282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 03/27/2018] [Indexed: 12/03/2022] Open
Affiliation(s)
- Mami Hirai
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Yasushi Yamasaki
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Keita Harada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
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Hirai M, Ishizaki K, Matsuda H, Sobue G. Surveillance of using novel free radical scavenger, edaravone to investigate survival effect for ALS patients in Japan (SUNRISE Japan): A study design. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.592] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hirai M, kitahara H, Kobayashi Y, Kawashiri S, Nakamura H. The role of PD-L1 in a high-grade invasive human oral squamous cell carcinoma microenvironment. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx391.020] [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: 11/14/2022] Open
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Kitahara H, Hirai M, Kawashiri S, Nakamura H. Oral squamous cell carcinoma cells were sensitized to cetuximab by Eribulin via induction of the mesenchymal-to-epithelial transition. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx361.051] [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: 11/14/2022] Open
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21
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Nakamura SX, Kamano H, Hayato Y, Hirai M, Horiuchi W, Kumano S, Murata T, Saito K, Sakuda M, Sato T, Suzuki Y. Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments. Rep Prog Phys 2017; 80:056301. [PMID: 28164864 DOI: 10.1088/1361-6633/aa5e6c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A precise description of neutrino-nucleus reactions will play a key role in addressing fundamental questions such as the leptonic CP violation and the neutrino mass hierarchy through analyzing data from next-generation neutrino oscillation experiments. The neutrino energy relevant to the neutrino-nucleus reactions spans a broad range and, accordingly, the dominant reaction mechanism varies across the energy region from quasi-elastic scattering through nucleon resonance excitations to deep inelastic scattering. This corresponds to transitions of the effective degree of freedom for theoretical description from nucleons through meson-baryon to quarks. The main purpose of this review is to report our recent efforts towards a unified description of the neutrino-nucleus reactions over the wide energy range; recent overall progress in the field is also sketched. Starting with an overview of the current status of neutrino-nucleus scattering experiments, we formulate the cross section to be commonly used for the reactions over all the energy regions. A description of the neutrino-nucleon reactions follows and, in particular, a dynamical coupled-channels model for meson productions in and beyond the [Formula: see text](1232) region is discussed in detail. We then discuss the neutrino-nucleus reactions, putting emphasis on our theoretical approaches. We start the discussion with electroweak processes in few-nucleon systems studied with the correlated Gaussian method. Then we describe quasi-elastic scattering with nuclear spectral functions, and meson productions with a [Formula: see text]-hole model. Nuclear modifications of the parton distribution functions determined through a global analysis are also discussed. Finally, we discuss issues to be addressed for future developments.
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Affiliation(s)
- S X Nakamura
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Turnbull JA, Yagnik SK, Hirai M, Staicu DM, Walker CT. An Assessment of the Fuel Pulverization Threshold During LOCA-Type Temperature Transients. NUCL SCI ENG 2017. [DOI: 10.13182/nse14-20] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - S. K. Yagnik
- Electric Power Research Institute Palo Alto, California
| | - M. Hirai
- Nippon Nuclear Fuel Development Co., Ltd. Ibaraki, Japan
| | - D. M. Staicu
- European Commission, Joint Research Centre, Institute for Transuranium Elements Karlsruhe, Germany
| | - C. T. Walker
- European Commission, Joint Research Centre, Institute for Transuranium Elements Karlsruhe, Germany
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Nagao N, Tamura Y, Bontje P, Takimoto Y, Hirai M, Ishikawa Y. Different views on treatment decisions by first-year interprofessional healthcare students. J Interprof Care 2017; 31:407-409. [PMID: 28276842 DOI: 10.1080/13561820.2016.1278360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 10/19/2022]
Abstract
This study explored ethical treatment decisions of healthcare professional students beginning their education. As part of a first-semester modern medicine and bioethics course, 311 students watched and discussed, in interprofessional groups, a video titled Dax's Case: Who Should Decide? regarding the treatment of a life-threatening infectious disease against Dax's wish. The students then discussed and made their decision regarding treating or not. Their decisions, recorded on a worksheet, were classified as "will treat" or "won't treat." Professional groups' decision patterns were compared using the chi-square test. Overall, 151 (71%) opinions from students were classified as "will treat," and 61 (29%) as "won't treat." Nursing students were more likely to decide "won't treat" (in line with Dax's preference); however, the majority of other professions' students favoured treatment (against Dax's wish). Given the students' limited exposure to profession-specific education, our preliminary study supports the notion that healthcare profession students hold different values that align with their chosen profession at the start of their studies.
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Affiliation(s)
- N Nagao
- a Graduate School of Health Sciences , Kobe University , Kobe , Hyogo , Japan
| | - Y Tamura
- b The Japanese Red Cross College of Nursing , Tokyo , Japan
| | - P Bontje
- c Graduate School of Human Health Sciences , Tokyo Metropolitan University , Tokyo , Japan
| | - Y Takimoto
- d Graduate School of Medicine , The University of Tokyo , Tokyo , Japan
| | - M Hirai
- e Department of Pharmacology , Kobe University Hospital , Kobe , Hyogo , Japan
| | - Y Ishikawa
- f Department of Internal Medicine, Cardiovascular Division , Kakogawa Central City Hospital , Kakogawa , Hyogo , Japan
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Kimura T, Ogura F, Yamamoto K, Uda A, Nishioka T, Kume M, Makimoto H, Yano I, Hirai M. Potentially inappropriate medications in elderly Japanese patients: effects of pharmacists' assessment and intervention based on Screening Tool of Older Persons' Potentially Inappropriate Prescriptions criteria ver.2. J Clin Pharm Ther 2016; 42:209-214. [PMID: 28039932 DOI: 10.1111/jcpt.12496] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [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: 11/04/2016] [Accepted: 11/29/2016] [Indexed: 01/13/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVES The Screening Tool of Older Persons' Potentially Inappropriate Prescriptions (stopp) criteria were updated in 2014 (stopp criteria ver.2), but few studies have evaluated the usefulness of stopp criteria in elderly patients. This prospective observational study evaluated the prevalence of potentially inappropriate medications (PIMs), and the efficacy of hospital pharmacists' assessment and intervention based on stopp criteria ver.2. METHODS The study was conducted at three medical units of Kobe University Hospital between April 2015 and March 2016. Pharmacists assessed and detected PIMs based on stopp criteria ver.2 and considered the patient's intention to change the prescription at the time of admission of each patient. If the pharmacists judged that benefits outweighed risks of prescription change and the patients consented to change the medications, they recommended the doctor to change the prescription. If there was a risk of exacerbation of disease by the change of medications and the pharmacists judged it to be difficult to adjust medications during hospitalization or the patients did not consent to change the medications, they did not recommend to change it. The pharmacists and the doctors discussed and finally decided whether to change the PIMs or not. The number of patients prescribed PIMs, the number and contents of PIMs, and the number of medications changed after pharmacists' intervention were calculated. RESULTS Totally, 822 new inpatients aged ≥65 years prescribed ≥1 daily medicine were included. Their median (interquartile range) age was 75·0 (71·0-80·0) years, and 54·9% were male. According to the criteria, 346 patients (42·1%) were prescribed ≥1 PIMs. Patients prescribed PIMs took significantly more medications than others: 10·0 (7·0-13·0) vs. 6·0 (4·0-9·0), P < 0·001. The total number of PIMs was 651%, 47·6% of which (n = 310) were recommended the doctors to change, and 292 of 651 PIMs (44·9%) were finally discontinued/changed after pharmacists' assessment and intervention. PIMs related to benzodiazepines, including Z-drugs, were most frequent, with a detailed classifications as follows (changed/total): (i) benzodiazepines for 4 or more weeks (75/205), (ii) drugs that predictably increase the risk of falls in older people (benzodiazepines) (30/67) and (iii) drugs that predictably increase the risk of falls in older people (hypnotic Z-drugs) (15/31). CONCLUSION Over 40% elderly patients were prescribed PIMs, and pharmacists' assessments and interventions based on stopp criteria ver.2 were useful in detecting and correcting prescription of PIMs.
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Affiliation(s)
- T Kimura
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - F Ogura
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - K Yamamoto
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - A Uda
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - T Nishioka
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - M Kume
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - H Makimoto
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - I Yano
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - M Hirai
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
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Ito H, Takagi H, Kozuka M, Kim S, Hirai M, Fujii T. Genetic testing by a novel high-purity concentration system for circulating tumor cells independent of epithelial markers. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw380.02] [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: 11/13/2022] Open
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Hirai M, Muramatsu Y, Mizuno S, Kurahashi N, Kurahashi H, Nakamura M. Intact attentional orienting towards inverted faces revealed by both manual responses and eye-movement measurement in individuals with Williams syndrome. J Intellect Disabil Res 2016; 60:969-981. [PMID: 27476718 DOI: 10.1111/jir.12318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 12/31/2015] [Revised: 06/10/2016] [Accepted: 06/22/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Individuals with Williams syndrome (WS) exhibit atypical attentional characteristics when viewing faces. Although atypical configural processing of faces has been reported in WS, the relative strengths of configural and local feature information to capture visual attention in WS remains unclear. We previously demonstrated that attentional capture by target-unrelated upright faces differs depending on what response is measured. Whereas eye movements reflected subtle atypical attentional properties at the late stage of visual search, manual responses could not capture the atypical attentional profiles towards target-unrelated upright faces in individuals with WS. Here we used the same experimental paradigm to assess whether sensitivity to configural facial information is necessary for capturing attention in WS. METHODS We measured both eye movements and manual responses from 17 individuals with WS and 34 typically developing children and adults while they were actively involved in a visual search task with an inverted face distractor. Task measures (reaction time and performance accuracy) and gaze behaviour (initial direction of attention and fixation duration) were analysed for each stimulus. RESULTS When the target and the inverted face were displayed in the same search array, reaction times and accuracies in individuals with WS showed similar tendencies as typical controls. Analysis of task and gaze measures revealed that attentional orienting towards inverted faces was not atypical. CONCLUSION Although individuals with WS exhibited atypical gaze behaviour towards upright faces in our previous study, this unusual behaviour disappears if the faces are upside down. These findings suggest that local feature information alone (e.g. eyes) does not contribute to the heightened attention to faces, but configural information appears necessary for drawing attention to faces in individuals with WS, at least in the current experimental paradigm.
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Affiliation(s)
- M Hirai
- Institute for Developmental Research, Aichi Human Service Center, Kasugai, Aichi, Japan.
- Center for Development of Advanced Medical Technology, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - Y Muramatsu
- Institute for Developmental Research, Aichi Human Service Center, Kasugai, Aichi, Japan
| | - S Mizuno
- Department of Pediatrics, Central Hospital, Aichi Human Service Center, Kasugai, Aichi, Japan
| | - N Kurahashi
- Department of Pediatrics, Central Hospital, Aichi Human Service Center, Kasugai, Aichi, Japan
| | - H Kurahashi
- Department of Pediatrics, Central Hospital, Aichi Human Service Center, Kasugai, Aichi, Japan
| | - M Nakamura
- Institute for Developmental Research, Aichi Human Service Center, Kasugai, Aichi, Japan
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Ueno M, Miyoshi M, Matsuo M, Yamashita H, Kajita A, Hamada Y, Takahashi M, Yamamoto M, Yamamoto I, Mikajiri R, Tabuchi S, Wakida K, Yamanishi M, Hirai M, Usami M. SUN-P007: Effect of Dietary Fatty Acids and Micronutrients Intake on Serum Diamine Oxidase Activity in Healthy Women. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30350-8] [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: 12/01/2022]
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Kitahara H, Hirai M, Nakamura H, Kawashiri S. Eribulin differentiates cetuximab resistant oral squamous cell carcinoma cells to sensitive by inducing mesenchymal–epithelial transition (MET). Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61183-8] [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: 10/21/2022]
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Abstract
Objective: To evaluate the pressure under short-stretch and elastic bandages. Design: Prospective study in 20 healthy volunteers, comparing the two different kinds of bandages. Setting: Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan. Main outcome measures: Pressure measurements were made beneath the bandages with different initial pressures of 10, 20, 30, 40, 50, 60, and 70 mmHg, during supine resting, standing, tip-toe exercise and walking. Results: Short-stretch bandages showed a significant increase in pressure during standing and exercise at lower initial pressures compared with elastic bandages. In analysing the pressure waveform during tip-toe exercise and walking, a significantly greater pressure difference between muscle contraction and relaxation was noted for short-stretch bandages compared with elastic bandages at any initial pressures. Conclusions: Short-stretch bandages produce a higher working pressure and a larger pressure difference during exercise. However, the effect depends on the initial pressures at the time of application. In clinical practice, prevention of a decrease in pressure with time and uniform application of bandages are important.
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Affiliation(s)
- M. Hirai
- Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan
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Abstract
Objective: To investigate the clinical significance of corona phlebectatica. Design: Clinical and plethysmographic evaluation of corona phlebectatica associated with primary varicose veins. Setting: Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan. Main outcome measures: In 411 limbs with greater saphenous incompetence, including 101 with skin changes and 310 without skin changes, clinical analysis and plethysmographic evaluation using the photoplethysmographic technique were carried out. Results: In 204 of 411 limbs, corona phlebectatica was observed, including 75 coloured red and 129 coloured blue. Blue coronas were observed significantly more often then red coronas in limbs with skin changes. The half refilling time in limbs with skin changes was significantly shorter than that in limbs without skin changes. In limbs without skin changes, limbs with blue coronas showed a significantly shortened half refilling time than those with red coronas. Conclusions: Blue coronas are a strong indicator of the presence of prolonged venous hypertension in varicose veins.
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Affiliation(s)
- M. Hirai
- Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan
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Abstract
Objective: To quantify the influence of posture and exercise on the interface pressure obtained under elastic stockings with compression pads. Design: Interface pressure measurement and plethysmographic evaluation of elastic stockings with and without compression pads. Setting: Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan. Main outcome measures: Pressure measurements in 24 volunteers were obtained beneath elastic stockings, elastic bandages and short-stretch bandages during supine resting, standing, tip-toe exercise and walking, and the effect of elastic stockings on the muscle pump of the leg was evaluated by strain-gauge plethysmography in 40 limbs with varicose veins. Results: Without compression pads, only short-stretch bandages showed a significant increase in pressure during standing and exercise. When pads were used, however, elastic stockings and bandages also showed a significant increase. With pads, significant improvement in the expelled volume during exercise was observed by strain-gauge plethysmography. Conclusions: Interface pressure under elastic materials during posture and exercise is similar to that under short-stretch bandages when compression pads are used, and pads effectively augment the muscle pump.
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Affiliation(s)
- M. Hirai
- Department of Surgery, Aichi Prefectural College of Nursing, Nagoya, Japan
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Hirai M, Iwata H. A comparison of physical methods for prophylaxis of deep vein thrombosis on augmentation of venous flow velocity and reduction of calf volume. Phlebology 2016. [DOI: 10.1258/026835504323080344] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Objective: This study was designed to determine the optimal physical methods for promoting venous return of the leg. Methods: Ten healthy volunteers were investigated in the supine position on a couch, and their peak femoral venous velocity and calf muscle volume were determined using duplex ultrasound and strain gauge plethysmography,respectively,before and during deep respiration, limb elevation, calf squeezing and various types of leg exercises. Results: Deep respiration showed the smallest effect on both percentage increase of peak flow velocity and expelled volume. Elevation of the leg showed the same effect on the expelled volume as calf muscle squeezing and ankle movement, while the former showed significantly less effect than the latter on the percentage increase of peak flow velocity. In both dorsal flexion of the ankle and squeezing at the calf, the stronger of each procedure caused more effective changes in haemodynamics. Ankle exercise was more effective in promoting venous return in the calf muscle than wiggling the toes, making circling movements with the feet or alternately flexing and spreading the toes. Conclusions: Ankle exercise or calf muscle squeezing, performed maximally,may be the first recommendation for reducing venous stasis at the calf muscle and prophylaxis of deep vein thrombosis..
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Masuda H, Hironaka S, Matsui Y, Hirooka S, Hirai M, Hirata Y, Akao M, Kumagai H. Comparative Study of the Antioxidative Activity of Culinary Herbs and Spices, and Hepatoprotective Effects of Three Selected Lamiaceae Plants on Carbon Tetrachloride-Induced Oxidative Stress in Rats. FSTR 2015. [DOI: 10.3136/fstr.21.407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - So Hironaka
- Laboratory of Food Chemistry, Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University
| | | | | | - Mami Hirai
- Laboratory of Food Chemistry, Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University
| | - Yushi Hirata
- Laboratory of Food Chemistry, Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University
| | - Makoto Akao
- Laboratory of Food Chemistry, Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University
| | - Hitomi Kumagai
- Laboratory of Food Chemistry, Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University
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Maeda K, Higa S, Nakahara H, Kawamoto K, Mori H, Nozato S, Hirai M, Matsuoka H, Kuritani T, Igarashi T. FRI0330 C-Reactive Protein Does not Elevate in Half of Pneumonia Cases for the Entire Observation Period of Pneumonia during TOCILIZUMAB Treatment for Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3072] [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: 11/03/2022]
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Nakahara H, Kawamoto K, Mori H, Nozato S, Hirai M, Matuoka H, Higa S, Fusama M, Takeuchi E, Igarashi T, Kuritani T, Sano H, Maeda K. AB0485 Tocilizumab is Effective for the Patient with Sjogren's Syndrome Complicated with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4416] [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: 11/04/2022]
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Ikuta T, Hamada Y, Yamaguchi T, Kitamura N, Hirai M, Usami M. PP139-MON THE CHARACTERISTICS OF HYPONATREMIA IN PATIENTS WITH MALNUTRITION: OBSERVATIONAL STUDY USING MULTI-FREQUENCY BIOELECTRICAL IMPEDANCE ANALYSIS. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60450-1] [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: 10/26/2022]
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Takahashi H, Mizuta T, Oeda S, Isoda H, Nakashita S, Kawaguchi Y, Izumi N, Hirai M, Kurose K, Iwane S, Eguchi Y, Kimura S, Anzai K, Ozaki I. An automated rapid detection system using the quenching probe method for detecting interleukin 28B and inosine triphosphatase single nucleotide polymorphisms in chronic hepatitis C. J Viral Hepat 2013; 20:e124-6. [PMID: 23490380 DOI: 10.1111/jvh.12026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Accepted: 10/01/2012] [Indexed: 12/09/2022]
Abstract
Single nucleotide polymorphisms (SNPs) in the interleukin 28B gene (IL28B) are good pretreatment predictors of anti-hepatitis C virus (HCV) therapy with interferon. SNPs of the inosine triphosphatase (ITPA) gene are associated with reduced haemoglobin levels during treatment with ribavirin. The i-densy™ (Arkray, Inc.), which is based on the quenching probe (QP) method, automatically detects target genes in blood samples by fluorescence quenching within 100 min. Using a QP and primer set, a gene amplification response is generated that can quickly and easily detect a specific gene's arrangement by fluorometry. The present study was conducted to compare the utility of i-densy (QP method) with that of conventional direct sequencing (DS) for detecting SNPs in the IL28B and ITPA genes in chronic hepatitis C patients. Between June 2011 and January 2012, 73 consecutive patients underwent genotyping of IL28B, and 54 patients underwent genotyping of ITPA. All of the patients were seropositive for HCV-RNA. The IL28B and ITPA genotypes were tested for bi-allelic polymorphisms in rs8099917 (T/T, T/G and G/G; minor allele, G) and rs1127354 (C/C, C/A and A/A; minor allele, A), respectively. The results obtained with the QP method were identical to those obtained with the conventional DS method. The frequency of the IL28B genotypes TT, GT and GG were 74%, 24.7% and 1.4%, respectively, and those of the ITPA genotypes CC, AC and AA were 68.5%, 29.6% and 1.9%, respectively. These results indicate that the i-densy using the QP method can automatically, quickly and easily identify genotypes of IL28B and ITPA.
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Affiliation(s)
- H Takahashi
- Department of Internal Medicine, Saga Medical School, Nabeshima, Saga, Japan
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Sai K, Hanatani T, Azuma Y, Segawa K, Tohkin M, Omatsu H, Makimoto H, Hirai M, Saito Y. Development of a detection algorithm for statin-induced myopathy using electronic medical records. J Clin Pharm Ther 2013; 38:230-5. [DOI: 10.1111/jcpt.12063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 03/07/2013] [Indexed: 11/29/2022]
Affiliation(s)
- K. Sai
- Division of Medicinal Safety Science; National Institute of Health Sciences; Tokyo Japan
| | - T. Hanatani
- Division of Medicinal Safety Science; National Institute of Health Sciences; Tokyo Japan
- Department of Regulatory Science; Graduate School of Pharmaceutical Sciences; Nagoya City University; Nagoya Japan
| | - Y. Azuma
- Division of Medicinal Safety Science; National Institute of Health Sciences; Tokyo Japan
| | - K. Segawa
- Division of Medicinal Safety Science; National Institute of Health Sciences; Tokyo Japan
| | - M. Tohkin
- Division of Medicinal Safety Science; National Institute of Health Sciences; Tokyo Japan
- Department of Regulatory Science; Graduate School of Pharmaceutical Sciences; Nagoya City University; Nagoya Japan
| | - H. Omatsu
- Department of Hospital Pharmacy; Kobe University Hospital; Kobe Japan
| | - H. Makimoto
- Department of Hospital Pharmacy; Kobe University Hospital; Kobe Japan
| | - M. Hirai
- Department of Hospital Pharmacy; Kobe University Hospital; Kobe Japan
| | - Y. Saito
- Division of Medicinal Safety Science; National Institute of Health Sciences; Tokyo Japan
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Abstract
OBJECTIVES Exercise of the leg with external limb compression has been reported to be useful for preventing and reducing leg oedema. The aim of this study was to investigate the effects of leg gaiters on calf muscle pump activity. METHODS Continuous measurements of the interface pressure at the leg during exercise and determination of the femoral venous velocity at the groin during exercise were carried out in healthy volunteers with elastic stockings alone, leg gaiters alone and gaiters over the elastic stockings. RESULTS The greatest pressure difference between muscle contraction and relaxation during exercise was observed when gaiters were applied over the elastic stockings at the calf. Gaiters alone without elastic stockings led to a significantly greater pressure difference between muscle contraction and relaxation during exercise than elastic stockings alone (P < 0.01). A significantly higher value of the peak flow velocity of the femoral vein was observed with the combined use of gaiters and elastic stockings than the single use of elastic stockings. CONCLUSIONS Leg gaiters have a beneficial effect of augmenting venous femoral blood flow during calf muscle pump activity in volunteers with a normal valve function of leg veins.
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Affiliation(s)
- M Hirai
- Department of Vascular Surgery, Tohkai Hospital, Chikusaku, Nagoya, Japan.
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Miyazaki K, Hirai M, Koyama A, Iwata H, Ohashi M, Ota A. Interface pressure is affected by slippage of bandages at thigh. INT ANGIOL 2012; 31:544-549. [PMID: 23222932] [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: 06/01/2023]
Abstract
AIM Very little is known about how compression bandages lose interface pressure. We hypothesized that the loss of interface pressure is correlated with the slippage of the bandages, and studied the interface pressure and slippage of three bandages over 8 hours. METHODS Twenty-Seven legs from 27 healthy volunteers were bandaged with short stretch bandages (SS), cohesive short stretch bandages (CS), and long stretch bandages (LS). Pressure sensors were placed above the ankle (B1), below the knee (D), and mid thigh (F). Interface pressures in a sitting position were recorded at the beginning, and 4 and 8 hours later. In 17 legs, the pressure sensor sites were marked, and their heights were measured on standing upright. RESULTS SS and CS lost interface pressure quickly, but LS maintained pressure better than SS and CS at all sites. There was no pressure difference between SS and CS at the lower leg. However, CS maintained pressure better than SS at the mid thigh (44.6% vs. 54.4% pressure loss at 8 hours, respectively. P=0.037). There was a tendency toward less slippage with CS than SS at the mid thigh. In CS and LS, there was a linear correlation between the slippage of bandages and the interface pressure at the mid thigh (P <.01, in both). CONCLUSION The interface pressure may be affected by the slippage of bandages at the thigh, but not at the lower leg. Cohesive short stretch bandages may exert their beneficial impact at the thigh.
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Affiliation(s)
- K Miyazaki
- Department of Vascular Surgery, Tokai Hospital, Nagoya, Japan.
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Abstract
Objectives To investigate the acceptability of newly developed separated elastic stockings, which are divided into two portions at the ankle. Methods The difficulty in putting on and taking off stockings was compared between the original or modified separated stockings with various techniques in order to reduce the shift of the stockings and current non-separated stockings in healthy volunteers and patients with lymphoedema by applying both stockings alternately. In the modified model, the shift during daily activities was measured in healthy volunteers and patients with lymphoedema. Results The two items, ‘easier compared with non-separated stockings’ and ‘much easier’, were chosen at rates of 75% and 81% for putting on and taking off stockings for the original separated stockings and 75% and 75% for the modified separated stockings, respectively. Complaints during daily activities with the modified type to the stockings decreased as compared with the original type. The shift of stockings after an average 11-hour application was 1.6 ± 3.0 SD mm (range: 0–10 mm). Conclusions Modified separated elastic stockings are easier to put on and take off compared with current non-separated stockings, and they can be used safely because of their low-level shift during daily activities.
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Affiliation(s)
- M Hirai
- Department of Vascular Surgery, Tohkai Hospital, Nagoya
| | - H Iwata
- Department of Vascular Surgery, Tohkai Hospital, Nagoya
- Department of Vascular Surgery, Aichi Medical University, Aichi
| | - K Miyazaki
- Department of Vascular Surgery, Tohkai Hospital, Nagoya
| | - A Koyama
- Department of Vascular Surgery, Tohkai Hospital, Nagoya
| | - H Nakamura
- Department of Development and Research, Toko Inc., Tokushima, Japan
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Abstract
Objectives To compare the interface pressure and stiffness between various combinations of compression material. Methods Using a stiffness-determining device, the interface pressure and stiffness were determined in several combinations of five elastic stockings and two elastic bandages. Results In the double stockings system, the interface pressure increased significantly and the highest stiffness was observed in double short-stretch stockings. When short-stretch bandages were applied over either short- or long-stretch stockings, a significant increase in stiffness was observed at any initial pressure compared with the single use of short-stretch stockings. In double bandage systems, when short-stretch bandages were applied over either short- or long-stretch bandages, the stiffness increased significantly. When long-stretch bandages were used over short-stretch bandages, the stiffness decreased significantly. Conclusions The stiffness is changeable according to the combinations of material, such as double stockings, double bandages and the wearing of bandages over stockings. The use of short-stretch bandages as the outside layer produces the highest stiffness at a high initial pressure.
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Affiliation(s)
- M Hirai
- Department of Vascular Surgery, Tohkai Hospital, 1-1-1 Chiyodabashi, Nagoya 464-8512
| | - A Koyama
- Department of Vascular Surgery, Tohkai Hospital, 1-1-1 Chiyodabashi, Nagoya 464-8512
| | - K Miyazaki
- Department of Vascular Surgery, Tohkai Hospital, 1-1-1 Chiyodabashi, Nagoya 464-8512
| | - H Iwata
- Department of Vascular Surgery, Aichi Medical University, Aichi
| | - Y Kominami
- Department of Development and Research, AMI Techno Inc, Tokyo, Japan
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Ioroi T, Kakuma T, Sakashita A, Ishibashi Y, Ohtagaki K, Fujiwara Y, Mukohara T, Kume M, Hirai M, Minami H, Nishimura Y. Evaluation of factors that intervention of palliative care team contributes to quality-of-life improvement of Japanese patients with advanced cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e19517] [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: 11/20/2022] Open
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Hirai M, Nakajima A, Kawai N, Tanaka E, Igarashi Y, Sakaguchi M, Sameshima GT, Shimizu N. Measurements of the torque moment in various archwire-bracket-ligation combinations. Eur J Orthod 2011; 34:374-80. [DOI: 10.1093/ejo/cjr022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Hirai M, Niimi K, Miyazaki K, Iwata H, Sugimoto I, Ishibashi H, Ota T, Kominami Y. Development of a device to determine the stiffness of elastic garments and bandages. Phlebology 2011; 26:285-91. [DOI: 10.1258/phleb.2010.010041] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Objective To evaluate the reliability of a newly developed stiffness-determining device, composed of a leg mannequin and air-pack type analyser, for measuring the interface pressure. Method The correlation of stiffness values obtained employing the Hohenstein method and this new method was investigated using 17 different brands of medical elastic compression stocking. Results A significant correlation in stiffness values using the two methods was obtained ( P < 0.01). When this new method was applied to the bandages, the stiffness was significantly correlated with the initial pressure when assessing both short-stretch and long-stretch bandages. On the comparison of stiffness values between elastic stockings and bandages with the same initial pressure, the short-stretch bandages showed a predominantly higher value than long-stretch bandages and stockings ( P < 0.01). Conclusion The reliability of this new method, which can be easily applied to not only elastic stockings but also elastic bandages, was verified. In clinical practice, the compression pressure should be selected in consideration of the prospective stiffness.
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Affiliation(s)
- M Hirai
- Department of Vascular Surgery, Tohkai Hospital, Nagoya
| | - K Niimi
- Department of Vascular Surgery, Tohkai Hospital, Nagoya
| | - K Miyazaki
- Department of Vascular Surgery, Tohkai Hospital, Nagoya
| | - H Iwata
- Department of Vascular Surgery, Aichi Medical University, Aichi
| | - I Sugimoto
- Department of Vascular Surgery, Aichi Medical University, Aichi
| | - H Ishibashi
- Department of Vascular Surgery, Aichi Medical University, Aichi
| | - T Ota
- Department of Vascular Surgery, Aichi Medical University, Aichi
| | - Y Kominami
- Department of Development and Research, AMI Techno Inc., Tokyo, Japan
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Hirai M, Iwata H, Niimi K, Miyazaki K, Koyama A, Komatsubara R. Improvement of a three-dimensional measurement system for the evaluation of foot edema. Skin Res Technol 2011; 18:120-4. [PMID: 21429012 DOI: 10.1111/j.1600-0846.2011.00527.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND/AIMS This study investigated the accuracy and usefulness of a newly improved three-dimensional measurement system for measuring the volume and circumference at the foot as well as at the calf and ankle. METHODS Regarding the newly improved device, halogen light was projected from four directions instead of the conventional two directions. The circumference and volume were measured in the morning and evening with and without elastic stockings in 23 healthy subjects. RESULTS The average circumference at the foot calculated using the 'average method', in which the circumference of the foot was measured in 10 places every 1 mm and the values were averaged, significantly increased in the evening compared with in the morning. When stockings were applied, the significant differences in the circumference or volume between the morning and evening disappeared at all sites of the leg. CONCLUSION The newly improved three-dimensional measurement system incorporating the halogen light from four directions, in which the foot circumference was calculated using an 'average method', was reliable and useful for evaluating edema at the foot as well as at the calf and ankle. The beneficial effect of elastic stockings on edema prevention was observed at all sites of the leg.
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Affiliation(s)
- M Hirai
- Department of Vascular Surgery, Tohkai Hospital, Nagoya, Japan.
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Hirai M, Saunders DR, Troje NF. Allocation of attention to biological motion: Local motion dominates global shape. J Vis 2011; 11:11.3.4. [DOI: 10.1167/11.3.4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Yamashita T, Inoue H, Okumura K, Kodama I, Aizawa Y, Atarashi H, Ohe T, Ohtsu H, Kato T, Kamakura S, Kumagai K, Kurachi Y, Koretsune Y, Saikawa T, Sakurai M, Sato T, Sugi K, Nakaya H, Hirai M, Hirayama A, Fukatani M, Mitamura H, Yamazaki T, Watanabe E, Ogawa S, Katoh T, Igawa O, Matsumoto N, Yamashita T, Kaneko Y, Watanabe E, Ogawa S, Osaka T, Fujii E, Niwano S, Yoshioka K, Kato M, Okazaki O, Kusano K, Okuyama Y, Furushima H, Suzuki M, Noda T, Kawara T, Sato T, Kamakura S, Endoh Y, Kumagai K, Hiyoshi Y, Ishiyama T, Ohtsuka T, Matsumoto M, Chishaki A, Shinohara T, Shirayama T, Koretsune Y, Yokoyama E, Ajiki K, Fujio K, Sugi K, Yamakawa T, Yusu S, Inoue H, Kawamura Y, Hayano M, Date T, Mizusawa Y, Kobayashi Y, Satomi K, Imai Y, Atarashi H, Fukunami M, Yokoshiki H, Betsuyaku T, Okumura K, Takeda H, Matsumoto K, Okishige K, Tagawa M, Hirai M, Okazaki H. Randomized trial of angiotensin II-receptor blocker vs. dihydropiridine calcium channel blocker in the treatment of paroxysmal atrial fibrillation with hypertension (J-RHYTHM II Study). Europace 2010; 13:473-9. [DOI: 10.1093/europace/euq439] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Yokoyama H, Yanagida T, Freeman MA, Katagiri T, Hosokawa A, Endo M, Hirai M, Takagi S. Molecular diagnosis of Myxobolus spirosulcatus associated with encephalomyelitis of cultured yellowtail, Seriola quinqueradiata Temminck & Schlegel. J Fish Dis 2010; 33:939-946. [PMID: 21091721 DOI: 10.1111/j.1365-2761.2010.01203.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Mass mortality of cultured yellowtail, Seriola quinqueradiata, has recently been reported from fish farms in western Japan. Previous studies revealed that diseased fish were characterized by encephalomyelitis and presporogonic stages of a myxosporean-like parasite in the spinal cord. However, the parasite has remained unidentified because of the lack of mature stages being present. Thus, in the present study, analysis of the small subunit ribosomal DNA (18S rDNA) of the parasite as well as in situ hybridization (ISH) studies using histological sections of the infected tissue was conducted. The 18S rDNA of the myxosporean had higher sequence similarities with those of bile-duct-infecting myxosporeans rather than those infecting nervous tissues and was identified as Myxobolus spirosulcatus. The ISH using specific probes demonstrated that the DNA amplified was derived from the multinuclear organisms found in histological sections. A highly sensitive and specific PCR-based assay for M. spirosulcatus was developed, which revealed a high prevalence of infection in cultured yellowtail that exhibited the clinical signs of encephalomyelitis.
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Affiliation(s)
- H Yokoyama
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo, Japan.
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Hirai M, Niimi K, Iwata H, Sugimoto I, Ishibashi H, Ota T, Nakamura H. Comparison of stiffness and interface pressure during rest and exercise among various arm sleeves. Phlebology 2010; 25:196-200. [PMID: 20656958 DOI: 10.1258/phleb.2009.009064] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To compare the interface pressure during rest and exercise among various kinds of arm sleeves. METHODS The interface pressure underneath nine different arm sleeves was measured during 10 maximal opening and closing movements of fingers using a pressure transducer (Air Pack Type Analyser) in 16 healthy volunteers. Furthermore, in order to evaluate the characteristics of each arm sleeve, the extensibility, stiffness and thickness were determined in vitro by several apparatuses. RESULTS There was a significant correlation between stiffness and extensibility. The stiffness was significantly correlated with the pressure difference between muscle contraction and relaxation during exercise. The higher the value of stiffness, the greater the pressure amplitude during exercise. CONCLUSION Short-stretch arm sleeves characterized with a high level stiffness, including thick round- and flat-knitted arm sleeves, are more beneficial for the augmentation of muscle pumping than long-stretch arm sleeves, in the same way as short-stretch bandages or stockings applied to the leg.
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Affiliation(s)
- M Hirai
- Department of Vascular Surgery, Tohkai Hospital, Nagoya, Japan.
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