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Okushin K, Tateishi R, Hirakawa S, Tachimori H, Uchino K, Nakagomi R, Yamada T, Nakatsuka T, Minami T, Sato M, Fujishiro M, Hasegawa K, Eguchi Y, Kanto T, Yoshiji H, Izumi N, Kudo M, Koike K. The impact of COVID-19 on the diagnosis and treatment of HCC: analysis of a nationwide registry for advanced liver diseases (REAL). Sci Rep 2024; 14:2826. [PMID: 38310156 PMCID: PMC10838269 DOI: 10.1038/s41598-024-53199-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/29/2024] [Indexed: 02/05/2024] Open
Abstract
The number of cancer cases diagnosed during the coronavirus disease 2019 (COVID-19) pandemic has decreased. This study investigated the impact of the pandemic on the clinical practice of hepatocellular carcinoma (HCC) using a novel nationwide REgistry for Advanced Liver diseases (REAL) in Japan. We retrieved data of patients initially diagnosed with HCC between January 2018 and December 2021. We adopted tumor size as the primary outcome measure and compared it between the pre-COVID-19 (2018 and 2019) and COVID-19 eras (2020 and 2021). We analyzed 13,777 patients initially diagnosed with HCC (8074 in the pre-COVID-19 era and 5703 in the COVID-19 era). The size of the maximal intrahepatic tumor did not change between the two periods (mean [SD] = 4.3 [3.6] cm and 4.4 [3.6] cm), whereas the proportion of patients with a single tumor increased slightly from 72.0 to 74.3%. HCC was diagnosed at a similar Barcelona Clinic Liver Cancer stage. However, the proportion of patients treated with systemic therapy has increased from 5.4 to 8.9%. The proportion of patients with a non-viral etiology significantly increased from 55.3 to 60.4%. Although the tumor size was significantly different among the etiologies, the subgroup analysis showed that the tumor size did not change after stratification by etiology. In conclusion, the characteristics of initially diagnosed HCC remained unchanged during the COVID-19 pandemic in Japan, regardless of differences in etiology. A robust surveillance system should be established particularly for non-B, non-C etiology to detect HCC in earlier stages.
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Affiliation(s)
- Kazuya Okushin
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
- Department of Infection Control and Prevention, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryosuke Tateishi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Shinya Hirakawa
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Endowed Course for Health System Innovation, Keio University School of Medicine, Tokyo, Japan
| | - Hisateru Tachimori
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Endowed Course for Health System Innovation, Keio University School of Medicine, Tokyo, Japan
| | - Koji Uchino
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Ryo Nakagomi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tomoharu Yamada
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takuma Nakatsuka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tatsuya Minami
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Masaya Sato
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kiyoshi Hasegawa
- Hepato-Biliary-Pancreatic Surgery Division, Artificial Organ and Transplantation Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuichiro Eguchi
- Liver Center, Saga University Hospital, Saga University, Saga, Japan
| | - Tatsuya Kanto
- The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Chiba, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, Japan
| | - Namiki Izumi
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
- Kanto Central Hospital, Tokyo, Japan
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Terasaki F, Hirakawa S, Tachimori H, Sugiura T, Nanashima A, Komatsu S, Miyata H, Kakeji Y, Kitagawa Y, Nakamura M, Endo I. Morbidity after left trisectionectomy for hepato-biliary malignancies: An analysis of the National Clinical Database of Japan. J Hepatobiliary Pancreat Sci 2023; 30:1304-1315. [PMID: 37750342 DOI: 10.1002/jhbp.1358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
BACKGROUND The aim of this study was to analyze the nationwide surgical outcome of a left trisectionectomy (LT) and to identify the perioperative risk factors associated with its morbidity. METHODS Cases of LT for hepato-biliary malignancies registered at the Japanese National Clinical Database between 2013 and 2019 were retrospectively reviewed. Statistical analyses were performed to identify the perioperative risk factors associated with a morbidity of Clavien-Dindo classification (CD) ≥III. RESULTS Left trisectionectomy was performed on 473 and 238 cases of biliary and nonbiliary cancers, respectively. Morbidity of CD ≥III and V occurred in 45% and 5% of cases with biliary cancer, respectively, compared with 26% and 2% of cases with nonbiliary cancer, respectively. In multivariable analyses, biliary cancer was significantly associated with a morbidity of CD ≥III (odds ratio, 1.87; p = .018). In subgroup analyses for biliary cancer, classification of American Society of Anesthesiologists physical status (ASA-PS) 2, portal vein resection (PVR), and intraoperative blood loss ≥30 mL/kg were significantly associated with a morbidity of CD ≥III. CONCLUSIONS Biliary cancer induces severe morbidity after LT. The ASA-PS classification, PVR, and intraoperative blood loss indicate severe morbidity after LT for biliary cancer.
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Affiliation(s)
- Fumihiro Terasaki
- Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Shinya Hirakawa
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Endowed Course for Health System Innovation, Keio University School of Medicine, Tokyo, Japan
| | - Hisateru Tachimori
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Endowed Course for Health System Innovation, Keio University School of Medicine, Tokyo, Japan
| | - Teiichi Sugiura
- Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Atsushi Nanashima
- Project Management Subcommittee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Shohei Komatsu
- Project Management Subcommittee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Hiroaki Miyata
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
| | - Yoshihiro Kakeji
- Database Committee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Yuko Kitagawa
- The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Masafumi Nakamura
- Project Committee, Japanese Society of Hepato-Biliary-Pancreatic Surgery, Tokyo, Japan
| | - Itaru Endo
- Japanese Society of Hepato-Biliary-Pancreatic Surgery, Tokyo, Japan
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Kawai K, Hirakawa S, Tachimori H, Oshikiri T, Miyata H, Kakeji Y, Kitagawa Y. Updating the Predictive Models for Mortality and Morbidity after Low Anterior Resection Based on the National Clinical Database. Dig Surg 2023; 40:130-142. [PMID: 37311436 DOI: 10.1159/000531370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 04/25/2023] [Indexed: 06/15/2023]
Abstract
INTRODUCTION We previously developed risk models for mortality and morbidity after low anterior resection using a nationwide Japanese database. However, the milieu of low anterior resection in Japan has undergone drastic changes since then. This study aimed to construct risk models for 6 short-term postoperative outcomes after low anterior resection, i.e., in-hospital mortality, 30-day mortality, anastomotic leakage, surgical site infection except for anastomotic leakage, overall postoperative complication rate, and 30-day reoperation rate. METHODS This study enrolled 120,912 patients registered with the National Clinical Database, who underwent low anterior resection between 2014 and 2019. Multiple logistic regression analyses were performed to generate predictive models of mortality and morbidity using preoperative information, including the TNM stage. RESULTS We developed new risk prediction models for the overall postoperative complication and 30-day reoperation rates for low anterior resection, which were absent from the previous version. The concordance indices for each endpoint were 0.82 for in-hospital mortality, 0.79 for 30-day mortality, 0.64 for anastomotic leakage, 0.62 for surgical site infection besides anastomotic leakage, 0.63 for complications, and 0.62 for reoperation. The concordance indices of all four models included in the previous version showed improvement. CONCLUSION This study successfully updated the risk calculators for predicting mortality and morbidity after low anterior resection using a model based on vast nationwide Japanese data.
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Affiliation(s)
- Kazushige Kawai
- Department of Colorectal Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
- Database Committee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Shinya Hirakawa
- Endowed Course for Health system Innovation, Keio University School of Medicine, Tokyo, Japan
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hisateru Tachimori
- Endowed Course for Health system Innovation, Keio University School of Medicine, Tokyo, Japan
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Taro Oshikiri
- Database Committee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Hiroaki Miyata
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Health Policy and Management, Keio University School of Medicine, Tokyo, Japan
| | - Yoshihiro Kakeji
- Database Committee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Yuko Kitagawa
- The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
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Tanboon J, Inoue M, Hirakawa S, Tachimori H, Hayashi S, Noguchi S, Okiyama N, Fujimoto M, Suzuki S, Nishino I. Muscle pathology of antisynthetase syndrome according to antibody subtypes. Brain Pathol 2023:e13155. [PMID: 36882048 DOI: 10.1111/bpa.13155] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 02/15/2023] [Indexed: 03/09/2023] Open
Abstract
Identification of antisynthetase syndrome (ASS) could be challenging due to inaccessibility and technical difficulty of the serology test for the less common non-Jo-1 antibodies. This study aimed to describe ASS antibody-specific myopathology and evaluate the diagnostic utility of myofiber HLA-DR expression. We reviewed 212 ASS muscle biopsies and compared myopathologic features among subtypes. Additionally, we compared their HLA-DR staining pattern with 602 non-ASS myositis and 140 genetically confirmed myopathies known to have an inflammatory component. We used t-test and Fisher's exact for comparisons and used sensitivity, specificity, positive and negative predictive values to assess the utility of HLA-DR expression for ASS diagnosis. RNAseq performed from a subset of myositis cases and histologically normal muscle biopsies was used to evaluate interferon (IFN)-signaling pathway-related genes. Anti-OJ ASS showed prominent myopathology with higher scores in muscle fiber (4.6 ± 2.0 vs. 2.8 ± 1.8, p = 0.001) and inflammatory domains (6.8 ± 3.2 vs. 4.5 ± 2.9, p = 0.006) than non-OJ ASS. HLA-DR expression and IFN-γ-related genes upregulation were prominent in ASS and inclusion body myositis (IBM). When dermatomyositis and IBM were excluded, HLA-DR expression was 95.4% specific and 61.2% sensitive for ASS with a positive predictive value of 85.9% and a negative predictive value of 84.2%; perifascicular HLA-DR pattern is common in anti-Jo-1 ASS than non-Jo-1 ASS (63.1% vs. 5.1%, p < 0.0001). In the appropriate clinicopathological context, myofiber HLA-DR expression help support ASS diagnosis. The presence of HLA-DR expression suggests involvement of IFN-γ in the pathogenesis of ASS, though the detailed mechanisms have yet to be elucidated.
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Affiliation(s)
- Jantima Tanboon
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan.,Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Michio Inoue
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan.,Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Shinya Hirakawa
- Department of Clinical Data Science, Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Hisateru Tachimori
- Department of Clinical Data Science, Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Shinichiro Hayashi
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan.,Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Satoru Noguchi
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan.,Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Naoko Okiyama
- Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.,Department of Dermatology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shigeaki Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan.,Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan.,Department of Clinical Genome Analysis, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
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5
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Mise Y, Hirakawa S, Tachimori H, Kakeji Y, Kitagawa Y, Komatsu S, Nanashima A, Nakamura M, Endo I, Saiura A. Volume- and quality-controlled certification system promotes centralization of complex hepato-pancreatic-biliary surgery. J Hepatobiliary Pancreat Sci 2023. [PMID: 36706938 DOI: 10.1002/jhbp.1307] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/26/2022] [Accepted: 01/19/2023] [Indexed: 01/29/2023]
Abstract
BACKGROUND Centralization of complex surgeries has made little progress when it only considers the minimum number of surgical procedures. We aim to assess the impact of certification system of Japanese Society of Hepato-Biliary-Pancreatic Surgery (JSHBPS) on centralization and surgical quality of advanced hepato-pancreatic-biliary (HPB) surgery. METHODS The National Clinical Database was used to review 20 111 patients who underwent pancreatoduodenectomy (PD) and 9666 who underwent advanced hepatectomy defined as hepatectomy of more than one section during 2019 and 2020. JSHPBS certifies hospitals based on the annual number of advanced HPB surgeries and the surgical quality. Minimum numbers of surgeries for board-certified A and B institutions are 50 and 30, respectively. Short-term outcomes were compared among institutions. RESULTS In 2020, 69.4% (7007/10090) and 72.9% (3433/4710) of patients underwent PD and advanced hepatectomy at board-certified institutions. In-hospital mortality rates after PD was 0.9% at certified A institutions, 1.4% at B institutions, and 2.7% at non-certified institutions (p < .001). The odds ratio (OR) of risk-adjusted mortality after PD compared with non-certified institutions was 0.39 (confidence interval [CI]: 0.30-0.50, p < .001) at certified A institutions, and 0.54 at certified B institutions (CI: 0.40-0.73, p < .001). In-hospital mortality rates after advanced hepatectomy was 1.7% at certified A institutions, 2.3% at B institutions, and 3.2% at non-certified institutions (p < .001). The OR of risk-adjusted mortality after advanced hepatectomy compared with non-certified institutions was 0.57 at certified A institutions (CI: 0.41-0.78, p < .001). CONCLUSION The volume- and quality-controlled certification system of JSHBPS reduces surgical mortality after advanced HPB surgeries.
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Affiliation(s)
- Yoshihiro Mise
- Department of Hepatobiliary-Pancreatic Surgery, Juntendo University Hospital, Bunkyo-Ku, Japan
| | - Shinya Hirakawa
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Endowed Course for Health System Innovation, Keio University School of Medicine, Tokyo, Japan
| | - Hisateru Tachimori
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Endowed Course for Health System Innovation, Keio University School of Medicine, Tokyo, Japan
| | - Yoshihiro Kakeji
- Database Committee, The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Yuko Kitagawa
- The Japanese Society of Gastroenterological Surgery, Tokyo, Japan
| | - Shohei Komatsu
- Japanese Society of Hepato-Biliary-Pancreatic Surgery, Tokyo, Japan
| | | | | | - Itaru Endo
- Japanese Society of Hepato-Biliary-Pancreatic Surgery, Tokyo, Japan
| | - Akio Saiura
- Department of Hepatobiliary-Pancreatic Surgery, Juntendo University Hospital, Bunkyo-Ku, Japan
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Kotajima‐Murakami H, Takano A, Hirakawa S, Ogai Y, Funada D, Tanibuchi Y, Ban E, Kikuchi M, Tachimori H, Maruo K, Kawashima T, Tomo Y, Sasaki T, Oi H, Matsumoto T, Ikeda K. Ifenprodil for the treatment of methamphetamine use disorder: An exploratory, randomized, double‐blind, placebo‐controlled trial. Neuropsychopharmacol Rep 2022; 42:92-104. [PMID: 35068087 PMCID: PMC8919120 DOI: 10.1002/npr2.12232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 12/03/2021] [Accepted: 12/28/2021] [Indexed: 01/10/2023] Open
Abstract
Aim No effective pharmacological interventions have been developed for patients with methamphetamine use disorder. Ifenprodil is a blocker of G protein‐activated inwardly rectifying potassium channels, which play a key role in the mechanism of action of addictive substances. We conducted a randomized, double‑blind, exploratory, dose‐ranging, placebo‐controlled trial to examine the clinical efficacy of ifenprodil for the treatment of methamphetamine use disorder. Methods Participants were assigned to three groups: placebo, 60 mg/d ifenprodil, or 120 mg/d ifenprodil. The drug administration period was 84 days. The primary outcome was the use or nonuse of methamphetamine during the drug administration period in the placebo group vs 120 mg/d ifenprodil group. We also assessed drug use status, relapse risk based on the Stimulant Relapse Risk Scale (SRRS), drug craving, and methamphetamine in urine as secondary outcomes. We further evaluated drug use status and SRRS subscale scores in patients who were not taking addiction medications during the study. Results Ifenprodil did not affect the primary or secondary outcomes. However, the additional analyses showed that the number of days of methamphetamine use during the follow‐up period and scores on the emotionality problems subscale of the SRRS improved in the 120 mg/d ifenprodil group. The safety of ifenprodil was confirmed in patients with methamphetamine use disorder. Conclusion The present findings did not confirm the efficacy of ifenprodil for methamphetamine use disorder treatment based on the primary or secondary outcomes, but we found evidence of its safety and efficacy in reducing emotionality problems. Clinical trial registration The study was registered at the University Hospital Medical Information Network Clinical Trial Registry (no. UMIN000030849) and Japan Registry of Clinical Trials (no. jRCTs031180080). The main registration site is jRCT (https://jrct.niph.go.jp/). We conducted an exploratory, randomized, double‐blind, placebo‐controlled trial to investigate the clinical safety and efficacy of ifenprodil for the treatment of methamphetamine use disorder in Japanese patients. Our findings confirmed the safety of ifenprodil, and ifenprodil at the highest dose exerted slight efficacy.![]()
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Affiliation(s)
- Hiroko Kotajima‐Murakami
- Addictive Substance Project Tokyo Metropolitan Institute of Medical Science Tokyo Japan
- Department of Drug Dependence Research National Institute of Mental Health National Centre of Neurology and Psychiatry Tokyo Japan
| | - Ayumi Takano
- Department of Drug Dependence Research National Institute of Mental Health National Centre of Neurology and Psychiatry Tokyo Japan
- Department of Mental Health and Psychiatric Nursing Tokyo Medical and Dental University Tokyo Japan
| | - Shinya Hirakawa
- Department of Clinical Data Science Clinical Research & Education Promotion Division National Centre of Neurology and Psychiatry Tokyo Japan
| | - Yasukazu Ogai
- Social Psychiatry and Mental Health Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - Daisuke Funada
- Department of Psychiatry National Centre Hospital National Centre of Neurology and Psychiatry Tokyo Japan
| | - Yuko Tanibuchi
- Department of Drug Dependence Research National Institute of Mental Health National Centre of Neurology and Psychiatry Tokyo Japan
- Department of Psychiatry Chiba Hospital Chiba Japan
| | - Eriko Ban
- Department of Drug Dependence Research National Institute of Mental Health National Centre of Neurology and Psychiatry Tokyo Japan
| | - Minako Kikuchi
- Department of Drug Dependence Research National Institute of Mental Health National Centre of Neurology and Psychiatry Tokyo Japan
| | - Hisateru Tachimori
- Department of Clinical Data Science Clinical Research & Education Promotion Division National Centre of Neurology and Psychiatry Tokyo Japan
| | - Kazushi Maruo
- Department of Biostatistics Faculty of Medicine University of Tsukuba Ibaraki Japan
| | - Takahiro Kawashima
- Department of Clinical Data Science Clinical Research & Education Promotion Division National Centre of Neurology and Psychiatry Tokyo Japan
| | - Yui Tomo
- Department of Clinical Data Science Clinical Research & Education Promotion Division National Centre of Neurology and Psychiatry Tokyo Japan
| | - Tsuyoshi Sasaki
- Department of Child Psychiatry Chiba‐University Hospital Chiba Japan
| | - Hideki Oi
- Department of Clinical Research Promotion Translational Medical Centre National Centre of Neurology and Psychiatry Tokyo Japan
| | - Toshihiko Matsumoto
- Department of Drug Dependence Research National Institute of Mental Health National Centre of Neurology and Psychiatry Tokyo Japan
| | - Kazutaka Ikeda
- Addictive Substance Project Tokyo Metropolitan Institute of Medical Science Tokyo Japan
- Department of Drug Dependence Research National Institute of Mental Health National Centre of Neurology and Psychiatry Tokyo Japan
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7
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Inoue M, Tanboon J, Hirakawa S, Komaki H, Fukushima T, Awano H, Tajima T, Yamazaki K, Hayashi R, Mori T, Shibuya K, Yamanoi T, Yoshimura H, Ogawa T, Katayama A, Sugai F, Nakayama Y, Yamaguchi S, Hayashi S, Noguchi S, Tachimori H, Okiyama N, Fujimoto M, Nishino I. Association of Dermatomyositis Sine Dermatitis With Anti-Nuclear Matrix Protein 2 Autoantibodies. JAMA Neurol 2021; 77:872-877. [PMID: 32310254 DOI: 10.1001/jamaneurol.2020.0673] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Importance Reports on dermatomyositis (DM) sine dermatitis (DMSD) are scarce, and the concept of the disease has not been widely accepted. Objective To confirm the existence of DMSD, determine its prevalence, and characterize its serologic features. Design, Setting, and Participants This is a cohort study that reviewed clinical information, laboratory data, and muscle pathology slides from January 2009 to August 2019. We further assessed the follow-up data of 14 patients with DMSD. The median (interquartile range) follow-up period was 34 (16-64) months. Muscle biopsy samples, along with clinical information and laboratory data, were sent to a referral center for muscle diseases in Japan for diagnosis. Of patients whose myopathologic diagnosis was made at the National Center of Neurology and Psychiatry between January 2009 and August 2019, 199 patients were eligible for inclusion. These patients underwent full investigation for DM-specific autoantibodies (against transcriptional intermediary factor γ, Mi-2, melanoma differentiation-associated gene 5, nuclear matrix protein 2 [NXP-2], and small ubiquitin-like modifier activating enzyme ); however, 17 patients were excluded because their muscle fibers did not express myxovirus resistance protein A, a sensitive and specific marker of DM muscle pathology. Main Outcomes and Measures Diagnosis of DMSD was based on the absence of a skin rash at the time of muscle biopsy. Results Of the 182 patients, 93 were women (51%) and 46 were children (25%) (<18 years). Fourteen patients (8%) had DMSD and none were clinically diagnosed with DM. Among the 14 patients with DMSD, 12 (86%) were positive for anti-NXP-2 autoantibodies, while the remaining 2 were positive for anti-transcriptional intermediary factor γ and anti-Mi-2 autoantibodies, respectively. Only 28% of patients (47 of 168) with a skin rash were positive for anti-NXP-2 autoantibodies, indicating a significant association between anti-NXP-2 autoantibodies and DMSD (86% [12 of 14] vs 28% [47 of 168]; P < .001). This association was also supported by multivariable models adjusted for disease duration (odds ratio, 126.47; 95% CI, 11.42-1400.64; P < .001). Conclusions and Relevance Dermatomyositis sine dermatitis does exist and accounts for 8% of patients with DM confirmed with muscle biopsy. Dermatomyositis sine dermatitis is significantly associated with anti-NXP-2 autoantibodies, which contrasts with anti-MDA5 DM, which is typically clinically amyopathic in presentation. It is essential to distinguish DMSD from other types of myositis because DM-specific therapies that are currently under development, including Janus kinase inhibitors, may be effective for DMSD.
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Affiliation(s)
- Michio Inoue
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.,Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Jantima Tanboon
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.,Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Shinya Hirakawa
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Hirofumi Komaki
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Takeshi Fukushima
- Department of Neurology, Matsudo City General Hospital, Chiba, Japan
| | - Hiroyuki Awano
- Department of Pediatrics, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Takashi Tajima
- Department of Neurology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Kenji Yamazaki
- Department of Rheumatology, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | | | - Tatsuo Mori
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Kazumoto Shibuya
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takahiko Yamanoi
- Department of Neurology, Ageo Central General Hospital, Saitama, Japan
| | - Hajime Yoshimura
- Department of Neurology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Tomohiro Ogawa
- Department of Neurology, Dokkyo Medical University Saitama Medical Center, Saitama, Japan
| | | | | | - Yoichi Nakayama
- Department of General Internal Medicine, Tenri Hospital, Nara, Japan
| | | | - Shinichiro Hayashi
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.,Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Satoru Noguchi
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.,Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Hisateru Tachimori
- Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Naoko Okiyama
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Graduate School of Medicine, Osaka University, Osaka, Japan.,Laboratory of Cutaneous Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Osaka, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.,Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
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Tanboon J, Inoue M, Hirakawa S, Tachimori H, Hayashi S, Noguchi S, Suzuki S, Okiyama N, Fujimoto M, Nishino I. Pathologic Features of Anti-Mi-2 Dermatomyositis. Neurology 2021; 96:e448-e459. [PMID: 33277422 DOI: 10.1212/wnl.0000000000011269] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 09/04/2020] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVE To identify the characteristic pathologic features of dermatomyositis (DM) associated with anti-Mi-2 autoantibodies (anti-Mi-2 DM). METHODS We reviewed 188 muscle biopsies from patients (1) pathologically diagnosed with DM through the sarcoplasmic expression for the myxovirus-resistant protein A and (2) serologically positive for 1 of 5 DM-specific autoantibodies (DMSAs) (anti-Mi-2, n = 30; other DMSAs, n = 152) or negative for all 5 DMSAs (n = 6). We then compared the histopathologic and immunohistochemical features of patients with anti-Mi-2 DM to those with non-Mi-2 DM and patients with anti-synthetase syndrome (ASS) (n = 212) using the t test, Fisher exact test, and a logistic regression model. RESULTS Patients with anti-Mi-2 DM showed significantly higher severity scores in muscle fiber and inflammatory domains than non-Mi-2 DM patients. The presence of perifascicular necrosis, increased perimysial alkaline phosphatase activity, and sarcolemmal membrane attack complex deposition was more frequent in patients with anti-Mi-2 DM (p < 0.01). After Bonferroni correction, there were no significant differences in the percentages of the features mentioned above between the patients with anti-Mi-2 DM and those with ASS (p > 0.01). CONCLUSION Perifascicular necrosis and perimysial pathology, features previously reported in ASS, are common in patients with anti-Mi-2 DM. Our findings not only assist in differentiating anti-Mi-2 DM from other DM subtypes but also suggest the possibility of an overlapping mechanism between anti-Mi-2 DM and ASS. CLASSIFICATION OF EVIDENCE This study provides Class II evidence that the muscle biopsies of DM patients with anti-Mi-2 autoantibodies are more likely to demonstrate higher severity scores in muscle fiber and inflammatory domains.
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Affiliation(s)
- Jantima Tanboon
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Michio Inoue
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Shinya Hirakawa
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Hisateru Tachimori
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Shinichiro Hayashi
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Satoru Noguchi
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Shigeaki Suzuki
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Naoko Okiyama
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Manabu Fujimoto
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan
| | - Ichizo Nishino
- From Department of Neuromuscular Research (J.T., M.I., S. Hayashi, S.N., I.N.), National Institute of Neuroscience, Departments of Genome Medicine Development (J.T., M.I., S. Hayashi, S.N., I.N.) and Clinical Genome Analysis (I.N.), Medical Genome Center, and Department of Clinical Epidemiology (S. Hirakawa, H.T.), Translational Medical Center, National Center of Neurology and Psychiatry; Department of Neurology (S.S.), Keio University School of Medicine, Tokyo; Department of Dermatology (N.O., M.F.), Faculty of Medicine, University of Tsukuba, Ibaraki; and Department of Dermatology (M.F.), Graduate School of Medicine, Osaka University, Japan.
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Chamney P, Moissl U, Wabel P, Amato C, Stuard S, Menzer M, Vollmeier C, Williams G, Shrivastava R, Chess J, Catling E, Brown C, Baker E, Ashcroft R, Mikhail A, Djukanovic L, Djuric Z, Knezevic V, Lazarevic T, Ljubenovic S, Markovic R, Rabrenovic V, Marinkovic J, Dimkovic N, Lebourg L, Ridel C, De Preneuf H, Le Roy F, Petitclerc T, Wester M, Simonis F, Kooman JP, Boer WH, Gerritsen KGF, Joles JA, Yamamoto KI, Eguchi K, Hirakawa S, Murakami J, Akiba T, Mineshima M, Stamopoulos D, Mpakirtzi N, Lavranos A, Panagiotou M, Barbarousi D, Matsouka C, Grapsa E, Abbas SR, Zhu F, Kaysen GA, Kotanko P, Levin NW, Vasilevsky A, Konoplev G, Stepanova O, Rubinsky A, Zemchenkov A, Gerasimchuk R, Frorip A, Abe T, Yamamoto KI, Ishimori I, Eguchi K, Murakami J, Mineshima M, Akiba T, Kusztal M, Go Biowski, T, Letachowicz K, Koni Ski P, Witkowski G, Pozna Ski P, Weyde W, Klinger M, Ito M, Ito S, Suzuki M, Masakane I, Navarro D, Goncalves C, Ferreira AC, Jorge C, Gil C, Aires I, Matias P, Mendes M, Azevedo A, Gomes F, Ferreira A, Perazzini C, Scutiero L, Brighenti L, Surace A, Steckiph D, Rovatti P, Severi S, Soltysiak J, Warzywoda A, Musielak A, Ostalska-Nowicka D, Zachwieja J, Goeksel T, Garnier H, Ritzerfeld M, Mann H, Babinet F, Allard B, Todorova V, Hamont C, Begri R, Dekker M, Taks M, Konings C, Scharnhorst V, Borawski J, Gozdzikiewicz-Lapinska J, Naumnik B, Lodi CA, Surace A, Grandi E, Rovatti P, Mancini E, Santoro A, Sereni L, Caiazzo M, Corazza L, Atti M, Palladino G, Sakurai K, Saito T, Hosoya H, Yamauchi F, Kurihara T, Tanibayashi Y, Ikebe N, Antonic M, Gubensek J, Drozg A, Vannier E, Mattio E, Todorova V, Ragon A, Brunet P, Klimm W, Pleskacz K, Pietrzak B, Niemczyk S, Leypoldt JK, Bernardo A, Muller M, Marbury TC, Culleton BF, Zeraati AA, Hekmat R, Reyhani HR, Sharifipoor F, Bolasco P, Sitzia I, Monni A, Mereu MC, Pinna AM, Logias F, Ghisu T, Passaghe M, Gazzanelli L, Ganadu M, Piras A, Cossu M, Contu B, Palleschi S, Rossi B, Atti M, Caiazzo M, Sereni L, Palladino G, Ghezzi PM, Kron S, Schneditz D, Leimbach T, Aign S, Kron J, Seker Kockara A, Kayatas M, Huzmeli C, Candan F, Yilmaz MB, Ahmed BA, Bejosano CN, Samra Abouchacra SA, Al Falahi SZ, Abdul Moniem KM, Dastoor H, Kim S, Oh J, Sin Y, Kim J, Lee J. HAEMODIALYSIS TECHNIQUES AND ADEQUACY 2. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Shimauchi T, Sasada K, Kito Y, Mori T, Hata M, Fujiyama T, Ito T, Hirakawa S, Tokura Y. CD8+ Sézary syndrome with interleukin-22 production modulated by bacterial sepsis. Br J Dermatol 2013; 168:881-3. [PMID: 23013419 DOI: 10.1111/bjd.12051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Shimauchi T, Yagi H, Sasada K, Kito Y, Ito T, Hirakawa S, Tokura Y. Characterization of a malignant T-cell line established from a rare case of CD8+ CD56+ Sézary syndrome. Br J Dermatol 2012; 168:885-7. [PMID: 23013154 DOI: 10.1111/bjd.12058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Ikawa T, Kasuya A, Hirakawa S, Tokura Y. Raynaud phenomenon, digital gangrene and hypergammaglobulinaemic purpura occurring in a patient with IgG4-related disease. Br J Dermatol 2011; 165:1364-6. [DOI: 10.1111/j.1365-2133.2011.10609.x] [Citation(s) in RCA: 8] [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: 12/24/2022]
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13
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Hirakawa S, Tanemura A, Mori H, Katayama I, Hashimoto K. Multiple lymphadenopathy as an initial sign of extramammary Paget disease. Br J Dermatol 2010; 164:200-3. [PMID: 20849466 DOI: 10.1111/j.1365-2133.2010.10052.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Extramammary Paget disease (EMPD) often develops in external genitalia. Paget cells can, however, adopt an invasive phenotype and metastasize to regional lymph nodes and beyond, leading to poor patient outcomes. Based on this clinical observation, multiple lymphadenopathy may represent an initial sign of EMPD. To address the potential significance of multiple lymph node swelling in EMPD, we report two patients with cutaneous primary EMPD who showed multiple lymphadenopathy as an initial sign during the clinical course of the disease as well as tumour metastasis. Significantly, marked lymphatic vessel growth was observed in regional lymph nodes that underwent massive tumour cell invasion. Therefore, nodal lymphangiogenesis may promote tumour cell invasion and metastasis to distant organs, including the lymph nodes, emphasizing the clinical relevance of multiple lymphadenopathy.
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Affiliation(s)
- S Hirakawa
- Department of Dermatology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
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Miyagawa I, Watanabe T, Isoyama T, Honda M, Kobayasi N, Hikita K, Saito M, Hirakawa S. Experience with injections of botulinum toxin type A into the detrusor muscle. Aktuelle Urol 2010; 41 Suppl 1:S24-6. [PMID: 20094947 DOI: 10.1055/s-0029-1224660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION We evaluated the effects of intra-vesical injection of botulinum toxin type A in the detrusor muscle in patients with neurogenic overactive bladder (OAB), patients with non-neurogenic overactive bladder and patients with interstitial cystitis. MATERIALS AND METHODS Between January 2003 and December 2006 we treated 30 patients with 100 I. U. to 300 I. U. of botulinum toxin A in the detrusor muscle. Patients were clinically and urodynamically followed up for 4, 12 and 36 weeks thereafter. RESULTS Neurogenic overactive bladder: of the 19 injected doses, 18 (94.7%) in 7 patients were judged as effective, and 1 (5.2%) of 200 U of BTX-A was judged as ineffective. Mean bladder volume increased from 137 to 396 ml. Non-neurogenic overactive bladder: of 7 injections, 6 (85.7%) were judged effective in 5 patients. Mean bladder volume increased from 149 to 322 ml. Interstitial cystitis: in all 4 patients the treatments were deemed ineffective. CONCLUSIONS Injecting 300 units of BTX-A into 30 sites in the muscle located in the body of the bladder region is effective for neurogenic bladder patients with intermittent catheterization who have urge and reflective types of incontinence. Injections of 100 and 200 units of BTX-A to treat non-neurogenic overactive bladder with urinary incontinence provided together without retention. The optimal dose of BTX-A requires further investigation. Injection with 200 units of BTX-A was not useful against interstitial cystitis. None of the patients developed any adverse effects after injecting the bladder wall with BTX-A.
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Dai X, Sayama K, Tohyama M, Shirakata Y, Yang L, Hirakawa S, Tokumaru S, Hashimoto K. The NF- B, p38 MAPK and STAT1 pathways differentially regulate the dsRNA-mediated innate immune responses of epidermal keratinocytes. Int Immunol 2008; 20:901-9. [DOI: 10.1093/intimm/dxn048] [Citation(s) in RCA: 20] [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: 11/13/2022] Open
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Wada N, Masudo K, Nakayama H, Suganuma N, Matsuzu K, Hirakawa S, Rino Y, Masuda M, Imada T. Clinical outcomes in older or younger patients with papillary thyroid carcinoma: Impact of lymphadenopathy and patient age. Eur J Surg Oncol 2008; 34:202-7. [DOI: 10.1016/j.ejso.2007.10.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2007] [Accepted: 10/08/2007] [Indexed: 10/22/2022] Open
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Rajesh K, Chandra MS, Hirakawa S, Kawamata J, Radhakrishnan TP. Polyelectrolyte templating strategy for the fabrication of multilayer hemicyanine Langmuir-Blodgett films showing enhanced and stable second harmonic generation. Langmuir 2007; 23:8560-8. [PMID: 17622162 DOI: 10.1021/la7009622] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Polyelectrolyte templating effectively suppresses the aggregation of cationic hemicyanine-based amphiphiles in monolayer Langmuir-Blodgett (LB) films leading to enhanced and stable optical second harmonic generation (SHG). The current study explores the impact of different polyelectrolytes (salts of poly(4-styrenesulfonic acid), deoxyribonucleic acid, and carboxymethylcellulose) on the mode of formation of multilayer LB films of the hemicyanine amphiphile and their SHG response. Pressure-area isotherms and Brewster angle microscopy reveal the impact of the polyelectrolyte complexation on the Langmuir films. Transfer ratios observed during film deposition, supported by electronic absorption spectra and atomic force microscope images of the multilayer LB films, suggest that the polyanions influence the deposition sequence, leading to significant variations in the SHG. Carboxymethylcellulose is identified as an optimal template that induces favorable z-type deposition, leading to the formation of stable multilayer films. These films exhibit the expected quadratic increase of SHG with the extent of deposition; significantly the film response is very stable under extended laser irradiation. It is proposed that structural adjustments of the sandwiched polymer layer lead to the observed deposition sequence and film stability. Polyelectrolyte templating is demonstrated to be a simple and effective strategy for the fabrication of multilayer LB films to elicit efficient quadratic nonlinear optical response.
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Affiliation(s)
- K Rajesh
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India
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Abstract
BACKGROUND Characterization of mechanisms that can reverse residual damage from prior skin exposure to ultraviolet (UV) would be of considerable biological and therapeutic interest. Topical caffeine application to mouse skin that had previously been treated with UV has been shown to inhibit the subsequent development of squamous cell carcinomas. OBJECTIVES We used an established mouse photodamage model to investigate other possible effects of topical caffeine application after UV. METHODS SKH-1 hairless mice were treated with ultraviolet B (UVB) followed immediately by topical application of caffeine or vehicle three times weekly for 11 weeks. RESULTS Caffeine applied topically after UV treatment resulted in a significant decrease in UV-induced skin roughness/transverse rhytides as assessed by treatment-blinded examiners. Histologically, topical caffeine application after a single dose of UVB more than doubled the number of apoptotic keratinocytes as evaluated by sunburn cell formation, caspase 3 cleavage and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labelling (TUNEL) staining. A trend towards decreased solar elastosis was noted in the caffeine-treated group although this was not statistically significant. Other histological parameters including epidermal hyperplasia, solar elastosis and angiogenesis were increased in mice treated with UV but topical application of caffeine did not alter these particular UV effects. CONCLUSIONS These findings support the concept that topical application of caffeine to mouse skin after UV irradiation promotes the deletion of DNA-damaged keratinocytes and may partially diminish photodamage as well as photocarcinogenesis.
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Affiliation(s)
- S-W Koo
- Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129, USA
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Hirakawa S, Ota N, Shimaoka M, Man W, Yamamoto K. Relationship between the average projected area of corneocytes and the onset age of atopic dermatitis in childhood. Int J Cosmet Sci 2006. [DOI: 10.1111/j.1467-2494.2006.00335_2.x] [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: 11/30/2022]
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Ogura T, Mimura Y, Otsuka F, Kishida M, Yokota K, Suzuki J, Nagai A, Hirakawa S, Makino H, Tobe K. Hypothyroidism associated with anti-human chorionic gonadotropin antibodies secondarily produced by gonadotropin therapy in a case of idiopathic hypothalamic hypogonadism. J Endocrinol Invest 2003; 26:1128-35. [PMID: 15008254 DOI: 10.1007/bf03345263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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] [Indexed: 11/27/2022]
Abstract
We report a 22-yr-old male patient with idiopathic hypothalamic hypogonadism who showed secondary resistance to gonadotropin (Gn) therapy over 3 yr after successful treatment with hCG combined with human menopausal Gn. The patient simultaneously developed subclinical hypothyroidism. Endocrine examination revealed low levels of testosterone (0.3 ng/ml), free T4 (0.91 ng/dl), and increased levels of TSH (31.1 microU/ml) in the serum. Serum autoantibodies to thyroid gland were all negative. Interestingly, thyroid function was improved after discontinuation of Gn therapy. In vitro assays by immunoprecipitation using 125I-hCG or 125I-TSH elucidated the presence of anti-hCG antibody in the serum 13 months after commencement of Gn therapy but anti-TSH antibody was not detected in the serum. Furthermore, the anti-hCG antibody specifically bound to hCG but not to other glycoproteins including TSH and FSH based on a competitive displacement assay. Bioassays using porcine thyroid cells revealed that the serum gamma-globulin fraction enables the suppression of cyclic AMP (cAMP) synthesis stimulated by TSH. Our findings suggest that anti-hCG and/or anti-idiotypic hCG antibodies induced by hCG therapy impaired TSH-dependent cAMP production through interfering with binding of TSH to its receptor, and this resulted in subclinical hypothyroidism in this patient.
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Affiliation(s)
- T Ogura
- Health and Medical Center, Okayama University Graduate School of Medicine and Dentistry, Okayama 700-8558, Japan
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Fossey SC, Mychaleckyj JC, Pendleton JK, Snyder JR, Bensen JT, Hirakawa S, Rich SS, Freedman BI, Bowden DW. A high-resolution 6.0-megabase transcript map of the type 2 diabetes susceptibility region on human chromosome 20. Genomics 2001; 76:45-57. [PMID: 11549316 DOI: 10.1006/geno.2001.6584] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent linkage studies and association analyses indicate the presence of at least one type 2 diabetes susceptibility gene in human chromosome region 20q12-q13.1. We have constructed a high-resolution 6.0-megabase (Mb) transcript map of this interval using two parallel, complementary strategies to construct the map. We assembled a series of bacterial artificial chromosome (BAC) contigs from 56 overlapping BAC clones, using STS/marker screening of 42 genes, 43 ESTs, 38 STSs, 22 polymorphic, and 3 BAC end sequence markers. We performed map assembly with GraphMap, a software program that uses a greedy path searching algorithm, supplemented with local heuristics. We anchored the resulting BAC contigs and oriented them within a yeast artificial chromosome (YAC) scaffold by observing the retention patterns of shared markers in a panel of 21 YAC clones. Concurrently, we assembled a sequence-based map from genomic sequence data released by the Human Genome Project, using a seed-and-walk approach. The map currently provides near-continuous coverage between SGC32867 and WI-17676 ( approximately 6.0 Mb). EST database searches and genomic sequence alignments of ESTs, mRNAs, and UniGene clusters enabled the annotation of the sequence interval with experimentally confirmed and putative transcripts. We have begun to systematically evaluate candidate genes and novel ESTs within the transcript map framework. So far, however, we have found no statistically significant evidence of functional allelic variants associated with type 2 diabetes. The combination of the BAC transcript map, YAC-to-BAC scaffold, and reference Human Genome Project sequence provides a powerful integrated resource for future genomic analysis of this region.
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Affiliation(s)
- S C Fossey
- Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, North Carolina, 27157, USA
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Matsumoto C, Tadokoro K, Fujimura K, Hirakawa S, Mitsunaga S, Juji T. Analysis of HBV infection after blood transfusion in Japan through investigation of a comprehensive donor specimen repository. Transfusion 2001; 41:878-84. [PMID: 11452155 DOI: 10.1046/j.1537-2995.2001.41070878.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND To understand the risk of transfusion-transmitted viral infection, it is important to precisely assess cases of infection that follow transfusion. STUDY DESIGN AND METHODS HBV infections noted after transfusion in 1997, 1998, and 1999 were analyzed. Transfusion in all these cases was performed before NAT was adopted for donor screening. To detect viral infection, PCR and serologic tests for HBV were performed retrospectively on all blood samples from implicated donors that had been stored in a frozen state after each donation. The concentration of HBV genome was measured in HBV-positive blood samples. RESULTS One hundred three cases of HBV infection were analyzed; of these, only 16, including at least 10 infections due to window-period (HBsAg-positive by reverse particle hemagglutination assay) donations, were confirmed by further testing to be related to transfusion. The concentrations of HBV genome were very low in four blood samples (<50, 400, 500, and 800 genome equivalents/mL of plasma). CONCLUSIONS The remaining risk of transfusion transmission of HBV infection before the adoption of NAT was mainly due to window-period donations, including one that was made before the HBV genome was detectable by PCR. However, it was determined that transfusion was not responsible in many cases for HBV infection after transfusion.
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Affiliation(s)
- C Matsumoto
- Japanese Red Cross Central Blood Center, 4-1-31, Hiroo, Shibuya-ko, Tokyo 150-0012, Japan.
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Affiliation(s)
- M Saito
- Department of Urology, Yonago National Hospital and Tottori University Faculty of Medicine, Yonago, Japan
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24
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Abstract
OBJECTIVE Women with hydrosalpinx have an unfavorable pregnancy rate. As one approach to elucidate the effect of hydrosalpinx on uterine tubal functioning, we examined the effect of hydrosalpinx fluid on early embryo development in mice. METHODS Hyperovulation was induced in ICR mice, and late 2-cell-stage embryos were harvested 42 hours after administration of human chorionic gonadotropin (hCG). Hydrosalpinx fluid was obtained from patients during surgery after informed consent was obtained. The embryos were cultured in 3 culture fluids: (1) mBWW medium containing 0.3% bovine serum albumin (positive-control medium) (BSA), (2) Ca2+, Mg2+-free phosphate buffered saline (negative-control medium) (PBS), and (3) 100% human hydrosalpinx fluid. The developmental status of the embryos 120 hours after hCG administration was examined. RESULTS Embryogenesis from a 2-cell-stage embryo to a blastocyst was observed in 98.3% (118/120) of the embryos cultured in the mBWW medium, in 0% (0/120) of the embryos cultured in PBS, and in 98.3% (118/120) of the embryos cultured in 100% human hydrosalpinx fluid. CONCLUSION In the micro-environment of human hydrosalpinx fluid, late 2-cell embryos of ICR mice developed normally to blastocysts. The present results also suggest that non-species-specific embryogenetic factors might be present in human hydrosalpinx fluid.
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Affiliation(s)
- S Saito
- First Department of Obstetrics and Gynecology, Toho University School of Medicine, Tokyo, Japan
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Hirakawa S, Oohashi T, Su WD, Yoshioka H, Murakami T, Arata J, Ninomiya Y. The brain link protein-1 (BRAL1): cDNA cloning, genomic structure, and characterization as a novel link protein expressed in adult brain. Biochem Biophys Res Commun 2000; 276:982-9. [PMID: 11027579 DOI: 10.1006/bbrc.2000.3583] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We report here molecular cloning and expression analysis of the gene for a novel human brain link protein-1 (BRAL1) which is predominantly expressed in brain. The predicted open reading frame of human brain link protein-1 encoded a polypeptide of 340 amino acids containing three protein modules, the immunoglobulin-like fold and proteoglycan tandem repeat 1 and 2 domains, with an estimated mass of 38 kDa. The brain link protein-1 mRNA was exclusively present in brain. When analyzed during mouse development, it was detected solely in the adult brain. Concomitant expression pattern of mRNAs for brain link protein-1 and various lectican proteoglycans in brain suggests a possibility that brain link protein-1 functions to stabilize the binding between hyaluronan and brevican. The human BRAL1 gene contained 7 exons and spanned approximately 6 kb. The entire immunoglobulin-like fold was encoded by a single exon and the proteoglycan tandem repeat 1 and 2 domains were encoded by a single and two exons, respectively. The deduced amino acid sequence of human brain link protein-1 exhibited 45% identity with human cartilage link protein-1 (CRTL1), previously reported as link protein to stabilize aggregates of aggrecan and hyaluronan in cartilage. These results suggest that brain link protein-1 may have distinct function from cartilage link protein-1 and play specific roles, especially in the adult brain.
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Affiliation(s)
- S Hirakawa
- Department of Molecular Biology and Biochemistry, Okayama University Medical School, Okayama, 700-8558, Japan
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26
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Yanagi K, Muraoka K, Yamamoto Y, Sanematsu H, Hirakawa S, Miyagawa I. [Extragonadal germ cell tumor coexisted with renal cell carcinoma--a case report]. Nihon Hinyokika Gakkai Zasshi 2000; 91:637-40. [PMID: 11068428 DOI: 10.5980/jpnjurol1989.91.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A patient was 31-year-old man with the chief complaint of 38 degrees C fever. He was pointed out left renal tumor by abdominal ultrasonography and computerized tomography (CT). CT revealed left infraclavicular, mediastinal and retroperitoneal lymph nodes swelling and left renal tumor. Serum alpha-fetoprotein (AFP) and beta-human chorionic gonadotropin (HCG-beta) level were elevated. The diagnosis of extragonadal germ cell tumor and left renal cell carcinoma was confirmed pathologically by infraclavicular lymph node and renal biopsy. He was treated with 4 courses of BEP regimen and interferon-alpha, cimetidine therapy for 2 weeks preoperatively. After serum tumor markers were normal level, he underwent left radical nephrectomy and left infraclavicular, mediastinal and retroperitoneal lymph node dissection. The histology of all lymph nodes was necrotic tissue, but operation was incomplete. Therefore VIP therapy was performed postoperatively. This is the first case of extragonadal germ cell tumor coexisted with renal cell carcinoma in the world.
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Affiliation(s)
- K Yanagi
- Department of Urology, Tottori University School of Medicine
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27
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Murozuka T, Aoki M, Kimura N, Sotoyama K, Abe I, Izumi H, Emura H, Takeda Y, Nanakawa H, Katsubayashi Y, Takeuchi T, Ito H, Hirakawa S, Mitsunaga S, Tadokoro K, Kanemitsu K, Miyamoto M, Yamanaka R, Nishioka K. Removal and inactivation of hepatitis B virus from contaminated pooled plasma in a large-scale manufacturing process for factor VIII and human serum albumin. Vox Sang 2000; 76:181-6. [PMID: 10341335 DOI: 10.1159/000031046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND OBJECTIVES The Japanese Red Cross Society recalled one lot of monoclonal-antibody-purified factor VIII (F VIII) and two lots of human serum albumin (HSA) 5 months after preparation of the final products, because of a procedural error that led to contamination by a unit of plasma positive for hepatitis B surface antigen (HBsAg). We evaluated the effectiveness of virus inactivation/removal in a large-scale process for manufacturing F VIII and HSA. MATERIALS AND METHODS HBV DNA in the retained samples in process was measured by the polymerase chain reaction (PCR). The kinetics of virus inactivation by solvent-detergent (S/D) treatment was examined using model viruses. We also did a look-back survey of the patients who received corresponding products. RESULTS Contaminated hepatitis B virus (HBV) DNA became undetectable beyond fraction S IV-I in the albumin process and immunoaffinity chromatography in the F VIII process, respectively. The model viruses were inactivated within 5 s by S/D treatment. There is no evidence that patients were infected by HBV after transfusion of these products. CONCLUSION We conclude that virus inactivation/removal was effectively achieved in a large-scale manufacturing process for F VIII and HSA.
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Affiliation(s)
- T Murozuka
- The Japanese Red Cross Plasma Fractionation Center, Chitose, Japan.
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Ohyama K, Uchide N, Suzuki R, Iwamoto N, Bessho T, Watanabe H, Hirakawa S, Yamakawa T. Biosynthesis of Vicia graminea lectin- and Vicia unijuga lectin-binding glycoproteins in human tumor and nontumor cells and an estimation of its epitope structure. Cancer Detect Prev 2000; 24:61-71. [PMID: 10757124] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
We investigated biosynthesis of Vicia graminea lectin (VGA)- and Vicia unijuga lectin (VUA)-binding (Vgu) glycoproteins, which are human malignant tumor-associated antigens, in cultured human tumor and non-tumor cells by pulse-labeling experiments with [35S]-methionine, followed by immunoprecipitation using immobilized VUA, SDS-PAGE and autofluorography. It was shown that Vgu glycoproteins synthesized by tumor cells were 15-30 times greater than those of non-tumor cells. It was also shown that about 40-70% of Vgu glycoproteins synthesized by non-tumor cells were secreted from the cells while more than 80% of the antigen synthesized by tumor cells was not secreted, and that Vgu glycoproteins consisted of multiple molecular species with the same epitope. To estimate the epitope structure of Vgu glycoproteins, in preliminary experiments we prepared sialoglycoproteins and/or sialoglycopeptides from purified human glycophorin A. Human glycophorins A(M) and A(N) (GPs-A(M) and A(N)) were treated with Clostridium perfringens neuraminidase to remove all sialic acid residues linked to carbohydrate chains, with Newcastle disease virus (NDV) to remove alpha2-3 linked sialic acid residues, and by Edman's degradation to eliminate N-terminal amino acid of GP-As. Partial or complete desialylation reactions resulted in disappearance of the reactivity of GP-A(M) and GP-A(N) with corresponding antisera and in appearance of reactivities with VUA and VGA. Elimination of N-terminal amino acid of GP-As also resulted in appearance of reactivities with VUA. These results show that sialoglycoproteins with similar serological properties of Vgu glycoprotein could be prepared from GP-As, and suggest that the epitope structure of Vgu glycoprotein may be related to the MN blood type-epitope structure and its sialic acid residues at N-terminal moiety of GP-As.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji, Japan.
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29
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Yanagi K, Saito M, Watanabe T, Hirakawa S, Miyagawa I. [Management of unilateral renal cystine calculi via percutaneous nephrolithotripsy in a child with a contralateral non-functional kidney--a case report]. Nihon Hinyokika Gakkai Zasshi 2000; 91:493-6. [PMID: 10826250 DOI: 10.5980/jpnjurol1989.91.493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A 2-year old boy visited our clinic with a chief complaint of high fever. A past history of acute renal failure due to cystine stones and cystinuria was expressed. Abdominal rentogenograms and CT demonstrated a right ureteral stone and a left renal stone. Furthermore renogram evaluation indicated non-function of the right kidney and dysfunction in the left kidney. Since right ureteral stone moved into bladder seven days post-admission, right ureteroscopy, left PNL, and cystolithotripsy were performed. Considering that right ureteral stenosis was determined by ureteroscopy, balloon dilation against the stenotic ureteral wall was performed. Left PNL and cystolithotripsy were successfully performed. No intraoperative complications occurred and no symptoms of signs of recurrence of the underlying metabolic disease were evident four months postoperatively.
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Affiliation(s)
- K Yanagi
- Department of Urology, Tottori University Faculty of Medicine, Yonago, Japan
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30
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Shibui Y, Sasabe Y, Nishimura T, Ito K, Shiokawa M, Nakano Y, Ikenaga K, Masaki K, Abe Y, Kubo H, Hirakawa S, Miura K. Chromosome analysis of infertile couples and amniocentesis of pregnancies in art program. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)84603-2] [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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Sasabe Y, Nishimura T, Shibui Y, Ito K, Abe Y, Kubo H, Hirakawa S. Chromosome analysis of embryos resulting from assisted reproductive technology. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)84602-0] [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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32
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Hirakawa S. Molecular cloning of a novel link protein gene specifically expressed in central nervous system. Neurosci Res 2000. [DOI: 10.1016/s0168-0102(00)81491-1] [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: 10/27/2022]
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33
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Ishikawa H, Matsuda Y, Katayama M, Hara I, Sato H, Kaneko S, Hirakawa S, Matsushima M. Amidolytic activities and prostate-specific antigen in human seminal plasma. Arch Androl 1999; 43:141-51. [PMID: 10543577 DOI: 10.1080/014850199262652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
The amounts of protein measured by absorbance at 280 nm, succinyl-L-alanyl-L-alanyl-L-prolyl-L-leucine-p-nitroanilide (Suc-Ala-Ala-Pro-Leu-pNA), D-valyl-cyclohexyl-alanyl-L-arginine-p-nitroanilide (Val-CHA-Arg-pNA), and glutamyl-L-phenylalanine-p-nitroanilide (Glu-Phe-pNA) amidolytic activities, and prostate-specific antigen (PSA) were measured in human seminal plasma (HSP) samples separated from the semen of 46 cases, including 13 cases of azoospermia and 33 cases of normozoospermia showing either good or poor quality of liquefaction. There was a highly significant correlation between the concentrations of all amidolytic enzyme activities studied and the concentration of PSA in HSP samples (p<.01). The HSP sample volume showed a relatively good negative coefficient of correlation to all items measured (p<.01) with the exception of protein concentration. The Suc-Ala-Ala-Pro-Leu-pNA, Val-CHA-Arg-pNA, and Glu-Phe-pNA amidolytic activities in azoospermia HSP samples were 2.33. 1.68, and 1.43 times higher, respectively, than those of normozoospermia samples showing good quality liquefaction. After the addition of morphologically purified human sperm to HSP sample of azoospermia cases, the Suc-Ala-Ala-Pro-Leu-pNA amidolytic activity in the HSP sample of azoospermia was not decreased for up to 18 h incubation, while the number of motile human sperm gradually declined, and no motile human sperm were detected after 18 h of incubation. The high Suc-Ala-AlaPro-Leu-pNA amidolytic activity in HSP samples of azoospermia cases did not result from a lack of motility.
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Affiliation(s)
- H Ishikawa
- Department of Urology, Ichikawa General Hospital, Tokyo Dental College, Chiba, Japan
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Abstract
We describe a 29-year-old woman with rheumatoid arthritis who suffered an acute myocardial infarction 70 days after an initial presentation with toxic epidermal necrolysis (TEN). The trigger for the TEN was probably an over-the-counter anti-influenza treatment containing tipepidine hibenzate. Although the patient had familial hypercholesterolemia, we believe that thrombocytosis, induced by the inflammatory response and metabolic stress resulting from the TEN, may also have played a significant role in the pathogenesis of the myocardial infarction. Although TEN manifests itself principally as a skin disease, the potential for systemic morbidity, including cardiovascular abnormalities, should also be remembered.
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Affiliation(s)
- S Hirakawa
- Department of Dermatology, Okayama University Medical School, Japan.
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35
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Fukushima K, Kasai N, Ueki Y, Nishizaki K, Sugata K, Hirakawa S, Masuda A, Gunduz M, Ninomiya Y, Masuda Y, Sato M, McGuirt WT, Coucke P, Van Camp G, Smith RJ. A gene for fluctuating, progressive autosomal dominant nonsyndromic hearing loss, DFNA16, maps to chromosome 2q23-24.3. Am J Hum Genet 1999; 65:141-50. [PMID: 10364526 PMCID: PMC1378084 DOI: 10.1086/302461] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The sixteenth gene to cause autosomal dominant nonsyndromic hearing loss (ADNSHL), DFNA16, maps to chromosome 2q23-24.3 and is tightly linked to markers in the D2S2380-D2S335 interval. DFNA16 is unique in that it results in the only form of ADNSHL in which the phenotype includes rapidly progressing and fluctuating hearing loss that appears to respond to steroid therapy. This observation suggests that it may be possible to stabilize hearing through medical intervention, once the biophysiology of deafness due to DFNA16 is clarified. Especially intriguing is the localization of several voltage-gated sodium-channel genes to the DFNA16 interval. These cationic channels are excellent positional and functional DFNA16 candidate genes.
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Affiliation(s)
- K Fukushima
- Departments of Otolaryngology and Biochemistry, Okayama University Medical School, Okayama, Japan
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Muraoka K, Takahashi C, Yamamoto Y, Watanabe T, Hirakawa S, Miyagawa I. [Examination for indication of systematic biopsy for diagnosis of prostate cancer]. Nihon Hinyokika Gakkai Zasshi 1999; 90:657-62. [PMID: 10481471 DOI: 10.5980/jpnjurol1989.90.657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Systematic biopsy has been commonly used for detection of prostate cancer. Nevertheless, as this examination occasionally gives patients severe complications it is necessary to give careful consideration for application of this examination. Thus, we analyzed retrospectively 145 cases who underwent transrectal ultrasonography (TRUS) guided systematic biopsy to evaluate the application of systematic biopsy, correlating with the findings of digital rectal examination (DRE), prostate specific antigen (PSA), the findings of transrectal ultrasonography (TRUS) and the results of biopsies. METHODS Between May, 1995 and May, 1997, 143 patients who were suspected to have prostate cancer with either of PSA and DRE, and 2 patients who received visual laser ablation of prostate (VLAP), underwent TRUS guided systematic biopsy of prostate. We evaluated diagnostic efficacy of PSA, DRE, TRUS, prostate-volume-specific PSA, and PSA density (PSAD). RESULTS Sensitivity, specificity and positive predictive value (P.P.V.) are 78.4%, 62.8% and 53.5% for DRE, 100.0%, 4.4% and 41.8% for PSA, 88.2%, 60.0% and 52.9% for TRUS, 87.8%, 72.1% and 64.2% for prostate-volume-specific PSA, 100.0%, 30.6% and 45.4% for PSAD, respectively. Ten of 69 patients (14.5%) whose PSA levels were 4.0 to 10.0 ng/ml were diagnosed as cancer, and positive for both or either of DRE and TRUS. Twenty-seven who were negative for both of DRE and TRUS were not diagnosed as prostate cancer. Using the combination of prostate-volume-specific PSA, DRE and TRUS, we could eliminate 29 non-cancer men (21.5%) whose PSA level was greater than 4.0 ng/ml from systematic biopsy. CONCLUSION On the diagnosis of prostate cancer, the combination of prostate-volume-specific PSA, DRE and TRUS is very useful to exclude unnecessary systematic biopsy, if an urologist could be used to and trained for DRE and TRUS.
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Affiliation(s)
- K Muraoka
- Tottori University Faculty of Medicine
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37
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Tsushima T, Kumon H, Ohmori H, Furukawa Y, Tanaka H, Nakahara M, Usui T, Yamamoto M, Naito K, Hirakawa S, Miyagawa I, Fujita K, Takenaka I, Kanayama H, Kagawa S, Yokoyama M, Takeuchi M, Yamashita M, Shuin T, Sumiyoshi Y, Takigawa H. [Clinical statistics of stage I testicular tumor]. Nihon Hinyokika Gakkai Zasshi 1999; 90:624-32. [PMID: 10422438 DOI: 10.5980/jpnjurol1989.90.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
PURPOSE A survey of stage I testicular tumors in the Chugoku-Shikoku district was taken in order to explore the clinical characteristics. PATIENTS AND METHODS Three hundred and forty eight cases of stage I testicular tumor treated at 46 facilities in the Chugoku-Shikoku district between 1984 and 1992 were collected. Subjects' background factors, treatment methods and prognosis were studied. RESULTS Tissue types were 249 (71.6%) seminoma and 99 (28.4%) non-seminoma. Adjuvant therapy for seminoma cases included 138 post-operative radiotherapy (4 recurrences, 3 cancer deaths), 57 chemotherapy (no recurrences, 2 contralateral testis tumor cases) and 48 were under surveillance (no recurrence). Adjuvant therapy for non-seminoma cases included 47 chemotherapy (1 recurrence) and retroperitoneal lymph node dissection was performed on 6 cases. Forty cases were under surveillance (1 recurrence). Of 8 (2.3%) cases with recurrence, 6 showed onset within two years and 2 after two years. Four of the 8 cases with recurrence were seminoma (1.1% of seminoma cases) and the other 4 were non-seminoma (4.0% of non-seminoma cases). All 3 (0.9% of all cases) of the cancer death cases were seminoma that received post-operative radiotherapy, while there were no cancer deaths in non-seminoma cases. CONCLUSION Prognosis of stage I testicular tumor is good. Although the recurrence rate was higher in non-seminoma cases, cancer deaths were only observed in seminoma cases.
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Affiliation(s)
- T Tsushima
- Department of Urology, Okayama University Medical School
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Abstract
Defensins are widely distributed and broad-spectrum antimicrobial peptides with activities against bacteria, fungi, and enveloped viruses. Defensins have been isolated from granules of neutrophils from humans, rabbits, rats, and guinea pigs. They have also been found in lung macrophages as well as in Paneth cells of the human, rabbit, and mouse small intestine. The human beta-defensin-2 was recently isolated from human skin. In this study, we detected the expression of mRNA for the defensin cryptdin in BALB/c mouse skin by means of reverse transcriptase PCR amplification. Expression was also detected in dispase-separated epidermis and cultured keratinocytes, but expression was not detected in fibroblasts. The expression of cryptdin mRNA was found to begin on embryonic day 17.5. As determined with specific primers, the cDNA sequence cloned from the skin was found to be identical to that previously reported for cryptdin-5. cDNA derived from cultured keratinocytes demonstrated the sequences of the cryptdin-6 and cryptdin-1 isoforms. In situ hybridization analysis showed that the mRNA of cryptdin was expressed in the suprabasal keratinocytes of the skin in embryonic and neonatal days and then shifted to the hair bulbs in the skin of adult mice.
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Affiliation(s)
- Y Shirafuji
- Department of Dermatology, Okayama University Medical School, Shikata-cho 2-5-1, Okayama 700-8558, Japan
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39
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Murozuka T, Aoki M, Kimura N, Sotoyama K, Abe I, Izumi H, Emura H, Takeda Y, Nanakawa H, Katsubayashi Y, Takeuchi T, Ito H, Hirakawa S, Mitsunaga S, Tadokoro K, Kanemitsu K, Miyamoto M, Yamanaka R, Nishioka K. Removal and Inactivation of Hepatitis B Virus from Contaminated Pooled Plasma in a Large-Scale Manufacturing Process for Factor VIII and Human Serum Albumin. Vox Sang 1999. [DOI: 10.1046/j.1423-0410.1999.7630181.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Hirakawa S, Kuyama M, Takahashi S, Yamasaki O, Kanzaki H, Teshima T, Harada M, Ma Y, Kawabata T, Yoshino T, Arata J. Nasal and nasal-type natural killer/T-cell lymphoma. J Am Acad Dermatol 1999; 40:268-72. [PMID: 10025761 DOI: 10.1016/s0190-9622(99)70204-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Nasal and nasal-type natural killer (NK)/T-cell lymphomas follow an aggressive course and have a poor prognosis. Recent pathologic studies suggest that the disease is a malignant proliferation of NK cells, which often express CD56. An association with the Epstein-Barr virus has also been reported. Skin involvement occurred in each of the 3 patients studied. Radiation therapy provided some benefit to the patients in the early stages. Conventional chemotherapies were not effective. To overcome this multiple-drug resistance of the tumor cells, cyclosporine and high-dose chemotherapy was combined with peripheral-blood stem-cell transplantation. The average life span from the onset of the disease for our patients was 9.6 months. Further improvement in the management of nasal and nasal-type NK/T-cell lymphomas is necessary.
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Affiliation(s)
- S Hirakawa
- Department of Dermatology, Okayama University Medical School, Japan
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41
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Sasabe Y, Katayama KP, Nishimura T, Takahashi A, Asakura H, Winchester-Peden K, Wise L, Abe Y, Kubo H, Hirakawa S. Preimplantation diagnosis by fluorescence in situ hybridization using 13-, 16-, 18-, 21-, 22-, X-, and Y-chromosome probes. J Assist Reprod Genet 1999; 16:92-6. [PMID: 10079412 PMCID: PMC3455735 DOI: 10.1023/a:1022520907332] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Our purpose was to select the proper chromosomes for preimplantation diagnosis based on aneuploidy distribution in abortuses and to carry out a feasibility study of preimplantation diagnosis for embryos using multiple-probe fluorescence in situ hybridization (FISH) on the selected chromosomes of biopsied blastomeres. METHODS After determining the frequency distribution of aneuploidy found in abortuses, seven chromosomes were selected for FISH probes. Blastomeres were obtained from 33 abnormal or excess embryos. The chromosome complements of both the biopsied blastomeres and the remaining sibling blastomeres in each embryo were determined by FISH and compared to evaluate their preimplantation diagnostic potential. RESULTS Chromosomes (16, 22, X, Y) and (13, 18, 21) were selected on the basis of the high aneuploid prevalence in abortuses for the former group and the presence of trisomy in the newborn for the latter. Thirty-six (72%) of 50 blastomeres gave signals to permit a diagnosis. Diagnoses made from biopsied blastomeres were consistent with the diagnoses made from the remaining sibling blastomeres in 18 embryos. In only 2 of 20 cases did the biopsied blastomere diagnosis and the embryo diagnosis not match. CONCLUSIONS If FISH of biopsied blastomere was successful, a preimplantation diagnosis could be made with 10% error. When a combination of chromosome-13, -16, -18, -21, -22, -X, and -Y probes was used, up to 65% of the embryos destined to be aborted could be detected.
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Affiliation(s)
- Y Sasabe
- First Department of Obstetrics and Gynecology, School of Medicine, Toho University, Tokyo, Japan
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Kuroki H, Tajima N, Hirakawa S, Kubo S, Tabe R, Kakitsubata Y. Comparative study of MR myelography and conventional myelography in the diagnosis of lumbar spinal diseases. J Spinal Disord 1998; 11:487-92. [PMID: 9884292] [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] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The purpose of this study was to investigate the usefulness of magnetic resonance (MR) myelography by comparing it with conventional myelography. MR myelography was performed on 40 patients (24 men and 16 women; mean age, 44 years) with lumbar spinal diseases. MR myelography was imaged three-dimensionally by fast spin-echo technique with fat suppression and maximum intensity projection. We assessed both the ability to provide the images of nerve root sheaths and the similarity of the findings to conventional myelography. Satisfactory images of nerve root sheaths in the lumbar region were provided almost equally by MR and conventional myelography. The images obtained by MR myelography were similar in quality to those obtained by conventional myelography. When combined with some other conventional MR imaging techniques, this diagnostic technique of imaging lumbar spinal diseases is further enhanced.
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Affiliation(s)
- H Kuroki
- Department of Orthopaedic Surgery, Miyazaki Medical College, Kiyotake, Japan
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Ohyama K, Oka K, Emura A, Tamura H, Suga T, Bessho T, Hirakawa S, Yamakawa T. Suppression of apoptotic cell death progressed in vitro with incubation of the chorion laeve tissues of human fetal membrane by glucocorticoid. Biol Pharm Bull 1998; 21:1024-9. [PMID: 9821804 DOI: 10.1248/bpb.21.1024] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the trophoblast layer of the chorion laeve of human fetal membranes obtained by cesarean section at the month of normal parturition, cells with condensed nuclei could be observed by histochemical examination. Incubating fetal membranes at 37 degrees C in vitro in cultivation medium, the frequency of cells with condensed nuclei increased in the chorion laeve, associating with an increase in DNA fragmentation and the population of in situ TUNEL (terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-X nick end labeling) staining-positive cells. The progressed apoptotic cell death in the chorion laeve in vitro was suppressed by incubation of the tissue in the presence of glucocorticoids, cortisone or hydrocortisone, which was also demonstrated by DNA fragmentation analysis and in situ TUNEL staining. These results reveal that a substantial proportion of trophoblast cells in the chorion laeve of human fetal membranes are induced to undergo apoptosis at the end of pregnancy, and that the apoptosis progresses rapidly in vitro as the incubation period increases. It is suggested that certain hormones such as glucocorticoid, may be related to the regulation of the apoptosis in human fetal membranes.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji, Japan
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Ohyama K, Oka K, Tamura H, Suga T, Bessho T, Hirakawa S, Yamakawa T. Progressive in vitro apoptosis in the chorion laeve of human fetal membranes at late stage of pregnancy is suppressed by glucocorticoides. Placenta 1998. [DOI: 10.1016/s0143-4004(98)91178-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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Hirakawa S, Yoshioka H. [Epidermolysis bullosa hereditaria]. Ryoikibetsu Shokogun Shirizu 1998:526-30. [PMID: 9645126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- S Hirakawa
- Department of Dermatology, Okayama University Medical School
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Fujimoto W, Nakanishi G, Hirakawa S, Nakanishi T, Shimo T, Takigawa M, Arata J. Pachyonychia congenita type 2: keratin 17 mutation in a Japanese case. J Am Acad Dermatol 1998; 38:1007-9. [PMID: 9632020 DOI: 10.1016/s0190-9622(98)70170-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- W Fujimoto
- Department of Dermatology, Okayama University Medical School, Shikata, Japan
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Ohyama K, Iwamoto N, Bessho T, Watanabe H, Hirakawa S, Yamakawa T. Presence of Vicia graminea lectin- and Vicia unijuga lectin-binding (Vgu) glycoproteins in human fetal membranes and some of their biochemical properties. Int J Biochem Cell Biol 1998; 30:609-22. [PMID: 9693961 DOI: 10.1016/s1357-2725(98)00010-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have previously reported that Vicia graminea lectin (VGA)- and Vicia unijuga lectin (VUA)-binding glycoproteins (Vgu glycoproteins), malignant tumor-associated antigens, exist in human meconium and amniotic fluid. To examine the origin of Vgu glycoprotein, their presence, some of their chemical and serological properties and their biosynthesis in the human fetal membrane, amnion and chorion laeve and accompanying membrane cells were examined. Perchloric acid-soluble fractions were prepared from human amnion and chorion laeve, after which VUA-binding components (Vgu glycoproteins) were separated by HPLC and affinity chromatography using immobilized VUA. Biosynthesis of the antigens in primary cultured cells prepared from the amnion and chorion laeve were examined by pulse-labeling and immunoprecipitation using immobilized VUA and compared with those in cultured human cancer cells. The results indicated that the serological properties of VUA-binding components in fetal membranes were similar to those of meconium and amniotic fluid, that many molecular species of VUA-binding components were synthesized in amnion and chorion laeve cells and that about 40-50% of antigens synthesized are secreted from cells while antigens synthesized in cultured cancer cells human were hardly secreted with more than 95% of the antigens remaining in the cells. From these results, we concluded that a large part of Vgu glycoproteins found in amniotic fluid is synthesized in cells of the amnion and chorion laeve and secreted into the fluid, and that Vgu glycoproteins synthesized in cancer cells were not secreted, rather they were retained in the cells.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan.
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Yasuda N, Gotoh K, Yagi Y, Nagashima K, Sawa T, Nomura M, Hirakawa S, Fujiwara H. Mechanism of posturally induced crackles as predictor of latent congestive heart failure. Respiration 1997; 64:336-41. [PMID: 9311049 DOI: 10.1159/000196701] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
We investigated the role of changes in pulmonary function in posturally induced crackles (PIC) in 76 patients with various heart diseases. Regional ventilation was evaluated by spirometric gated ventilation scanning using 133Xe in 23 of these patients and its relationship to PIC was analyzed. A change from the sitting to the supine position was associated with a significant decrease in the percent functional residual capacity (FRC, p < 0.01) and significant increases in closing volume (CV), CV/vital capacity (VC) and closing capacity (CC)/FRC (p < 0.01) in the PIC-positive subjects. CV, CV/VC and CC/FRC did not differ significantly between PIC-positive (n = 37) and PIC-negative (n = 39) subjects in the sitting position, but in the supine position, these values were significantly higher in the PIC-positive group than in the PIC-negative group (CV: p < 0.05, CV/VC and CC/FRC: p < 0.01). These results suggest that airway closure was markedly increased in PIC-positive subjects in the supine position compared with PIC-negative subjects. Regional ventilation (V) was assessed in the sitting and the supine position from right lateral images divided into 9 segments from the base to the apex of the lung using spirometric gated ventilation scanning. There was no significant difference in regional ventilation in the sitting position between PIC-negative (n = 11) and PIC-positive (n = 12) subjects; in the supine position, regional ventilation decreased significantly at the base in the PIC-positive group. Findings suggest that PIC at the base of the lungs may be related to airway closure at the base of the lungs in the supine position in PIC-positive subjects.
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Affiliation(s)
- N Yasuda
- Second Department of Internal Medicine, Gifu University School of Medicine, Japan
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Tomita M, Wada H, Tanaka R, Miwa Y, Kagawa K, Noda T, Nishigaki K, Hirakawa S, Fujiwara H. Effects of Albunex infusion on left ventricular inflow velocity in dogs. J Cardiol 1997; 29:283-91. [PMID: 9174884] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study examined the effects of Albunex (sonicated 5% human serum albumin) infusion on left ventricular inflow velocity by Doppler echocardiography. Left ventricular pressure and left ventricular inflow velocity were recorded simultaneously under eight different conditions in dogs: 1) baseline 1 (control), 2) Albunex 0.2 ml/kg, 3) baseline 2, 4) Albunex 0.5 ml/kg, infusion of dextran 100 ml, 5) baseline 3, 6) Albunex 0.2 ml/kg, 7) baseline 4, and 8) Albunex 0.5 ml/kg. In the normal state (no dextran), Albunex (0.2 ml/kg) caused no hemodynamic changes or inflow velocity changes. In contrast, infusion of Albunex (0.5 ml/kg) caused time velocity integrals of early filling to increase from the baseline (5.51 +/- 1.13 vs 7.19 +/- 1.14 cm, p < 0.05). After dextran infusion (100 ml), Albunex (0.2 ml/kg) caused peak early filling velocity to increase (62.4 +/- 6.9 vs 67.3 +/- 9.4 cm/sec, p < 0.05), and infusion of Albunex (0.5 ml/kg) also caused peak early filling velocity to increase from baseline (64.6 +/- 8.5 vs 73.7 +/- 14.5 cm/sec, p < 0.05). Infusion of Albunex (0.5 ml/kg) after dextran infusion caused increases in left ventricular pressure at the mitral valve opening (12.7 +/- 3.1 vs 15.2 +/- 3.3 mmHg, p < 0.05) and in left atrial driving force (13.5 +/- 3.6 vs 16.7 +/- 5.9 mmHg, p < 0.05). Clinicians should be cautious about using Albunex at doses of greater than 0.2 ml/kg when evaluating the pressure gradient of the left ventricle in patients with elevated left ventricular diastolic pressure. In patients with normal hemodynamics, Albunex infusion at doses of less than 0.2 ml/kg apparently did not affect the velocity measurement.
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Affiliation(s)
- M Tomita
- Second Department of Internal Medicine, Gifu University School of Medicine
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Ohyama K, Suzuki R, Watanabe H, Hirakawa S, Yamakawa T. Presence of Vicia graminea lectin- and Vicia unijuga lectin-binding (Vgu) glycoprotein in human amniotic fluid and some of its chemical and serological properties. Int J Biochem Cell Biol 1997; 29:455-64. [PMID: 9202424 DOI: 10.1016/s1357-2725(96)00095-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Vicia graminea- and Vicia unijuga-binding glycoprotein (Vgu glycoprotein) has been reported as a malignant tumor-associated antigen, which is found in various kinds of malignant tumor-tissues and ascitic and cyst fluids of malignant tumor patients, but not found in 20 kinds of normal human tissues. The glycoprotein reacts with anti-N lectins of Vicia-graminea (VGA) and Vicia unijuga (VUA), but does not react with anti-blood group M and N sera. The existence of Vgu glycoprotein in human amniotic fluid is reported here. A perchloric acid-soluble glycoprotein fraction (PASF) was prepared from human amniotic fluid (AF-PASF). Sialoglycoprotein was then separated from AF-PASF by consecutive gel filtration on Sephacryl S-300, HPLC on Asahipak GS-710 and affinity chromatography in VUA-conjugated formyl-cellulofine columns. The sialoglycoprotein with 9.6% (w/w) carbohydrate content showed a molecular mass of 2940 kDa estimated by HPLC gel filtration. The sialoglycoprotein showed reactivity with VGA and VUA, but did not react with anti-M and -N sera. In addition, the sialoglycoprotein reacted with lectins of Ulex europeus, Arachis hypogaea, Maclura pomifera, Canavalia ensiformis, Ricinus communis, Phaseolus vulgaris, Sambucus nigra and Sophora japonica. These results show that Vgu glycoprotein exists in human amniotic fluid, and that Vgu glycoprotein obtained from human amniotic fluid has a similar serological property to Vgu glycoproteins found in malignant tumor-tissues, but its chemical property is significantly different from that of malignant-tumor associated Vgu glycoproteins.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan
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