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Obikane E, Baba T, Shinozaki T, Obata S, Nakanishi S, Murata C, Ushio E, Suzuki Y, Shirakawa N, Honda M, Sasaki N, Nishi D, O'Mahen H, Kawakami N. Internet-based behavioural activation to improve depressive symptoms and prevent child abuse in postnatal women (SmartMama): a protocol for a pragmatic randomized controlled trial. BMC Pregnancy Childbirth 2021; 21:314. [PMID: 33879065 PMCID: PMC8057289 DOI: 10.1186/s12884-021-03767-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 03/30/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Child abuse and postnatal depression are two public health problems that often co-occur, with rates of childhood maltreatment highest during the first year of life. Internet-based behavioural activation (iBA) therapy has demonstrated its efficacy for improving postnatal depression. No study has examined whether the iBA program is also effective at preventing child abuse. This study aims to investigate whether iBA improves depressive symptoms among mothers and prevents abusive behaviours towards children in postpartum mothers in a randomized controlled trial, stratifying on depressive mood status. The study also evaluates the implementation aspects of the program, including how users, medical providers, and managers perceive the program in terms of acceptability, appropriateness, feasibility, and harm done. METHODS The study is a non-blinded, stratified randomized controlled trial. Based on cut-off scores validated on Japanese mothers, participants will be stratified to either a low Edinburgh Postnatal Depression Scale (EPDS) group, (EPDS 0-8 points) or a high EPDS group (EPDS ≥9 points). A total of 390 postnatal women, 20 years or older, who have given birth within 10 weeks and have regular internet-access will be recruited at two hospitals. Participants will be randomly assigned to either treatment, with treatment as usual (TAU) or through intervention groups. The TAU group receives 12 weekly iBA sessions with online assignments and feedback from trained therapists. Co-primary outcomes are maternal depressive symptoms (EPDS) and psychological aggression toward children (Conflict Tactic Scale 1) at the 24-week follow-up survey. Secondary outcomes include maternal depressive symptoms, parental stress, bonding relationship, quality of life, maternal health care use, and paediatric outcomes such as physical development, preventive care attendance, and health care use. The study will also investigate the implementation outcomes of the program. DISCUSSION The study investigates the effectiveness of the iBA program for maternal depressive symptoms and psychological aggression toward children, as well as implementation outcomes, in a randomized-controlled trial. The iBA may be a potential strategy for improving maternal postnatal depression and preventing child abuse. TRIAL REGISTRATION The study protocol (issue date: 2019-Mar-01, original version 2019005NI-00) was registered at the UMIN Clinical Trial Registry (UMIN-CTR: ID UMIN 000036864 ).
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Affiliation(s)
- Erika Obikane
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshiaki Baba
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, 1-21-1, Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan.
| | - Tomohiro Shinozaki
- Department of Information and Computer Technology, Faculty of Engineering, Tokyo University of Science, Tokyo, Japan
| | - Soichiro Obata
- Perinatal Center for Maternity and Neonates, Yokohama City University Medical Center, Yokohama, Japan
| | - Sayuri Nakanishi
- Perinatal Center for Maternity and Neonates, Yokohama City University Medical Center, Yokohama, Japan
| | - Chie Murata
- Department of Obstetrics and Gynecology, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - Emiko Ushio
- Department of Obstetrics and Gynecology, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - Yukio Suzuki
- Department of Obstetrics and Gynecology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | | | - Mari Honda
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, 1-21-1, Toyama, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Natsu Sasaki
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Norito Kawakami
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Hara T, Phuong PT, Fukuda D, Yamaguchi K, Murata C, Nishimoto S, Yagi S, Kusunose K, Yamada H, Soeki T, Wakatsuki T, Imoto I, Shimabukuro M, Sata M. Protease-Activated Receptor-2 Plays a Critical Role in Vascular Inflammation and Atherosclerosis in Apolipoprotein E-Deficient Mice. Circulation 2019; 138:1706-1719. [PMID: 29700120 DOI: 10.1161/circulationaha.118.033544] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The coagulation system is closely linked with vascular inflammation, although the underlying mechanisms are still obscure. Recent studies show that protease-activated receptor (PAR)-2, a major receptor of activated factor X, is expressed in both vascular cells and leukocytes, suggesting that PAR-2 may contribute to the pathogenesis of inflammatory diseases. Here we investigated the role of PAR-2 in vascular inflammation and atherogenesis. METHODS We generated apolipoprotein E-deficient ( ApoE-/-) mice lacking systemic PAR-2 expression ( PAR-2-/- ApoE-/-). ApoE-/- mice, which lack or express PAR-2 only in bone marrow (BM) cells, were also generated by BM transplantation. Atherosclerotic lesions were investigated after 20 weeks on a Western-type diet by histological analyses, quantitative reverse transcription polymerase chain reaction, and Western blotting. In vitro experiments using BM-derived macrophages were performed to confirm the proinflammatory roles of PAR-2. The association between plasma activated factor X level and the severity of coronary atherosclerosis was also examined in humans who underwent coronary intervention. RESULTS PAR-2-/- ApoE-/- mice showed reduced atherosclerotic lesions in the aortic arch ( P<0.05) along with features of stabilized atherosclerotic plaques, such as less lipid deposition ( P<0.05), collagen loss ( P<0.01), macrophage accumulation ( P<0.05), and inflammatory molecule expression ( P<0.05) compared with ApoE-/- mice. Systemic PAR2 deletion in ApoE-/-mice significantly decreased the expression of inflammatory molecules in the aorta. The results of BM transplantation experiments demonstrated that PAR-2 in hematopoietic cells contributed to atherogenesis in ApoE-/- mice. PAR-2 deletion did not alter metabolic parameters. In vitro experiments demonstrated that activated factor X or a specific peptide agonist of PAR-2 significantly increased the expression of inflammatory molecules and lipid uptake in BM-derived macrophages from wild-type mice compared with those from PAR-2-deficient mice. Activation of nuclear factor-κB signaling was involved in PAR-2-associated vascular inflammation and macrophage activation. In humans who underwent coronary intervention, plasma activated factor X level independently correlated with the severity of coronary atherosclerosis as determined by Gensini score ( P<0.05) and plaque volume ( P<0.01). CONCLUSIONS PAR-2 signaling activates macrophages and promotes vascular inflammation, increasing atherosclerosis in ApoE-/- mice. This signaling pathway may also participate in atherogenesis in humans.
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Affiliation(s)
- Tomoya Hara
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Pham Tran Phuong
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Daiju Fukuda
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan.,Cardio-Diabetes Medicine (D.F., M.Shimabukuro), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Koji Yamaguchi
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Chie Murata
- Human Genetics (C.M., I.I.), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Sachiko Nishimoto
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | | | - Kenya Kusunose
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Hirotsugu Yamada
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Takeshi Soeki
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Tetsuzo Wakatsuki
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Issei Imoto
- Human Genetics (C.M., I.I.), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Michio Shimabukuro
- Cardio-Diabetes Medicine (D.F., M.Shimabukuro), Tokushima University Graduate School of Biomedical Sciences, Japan
| | - Masataka Sata
- Departments of Cardiovascular Medicine (T.H., P.T.P., D.F., K.Y., S.N., S.Y., K.K., H.Y., T.S., T.W., M.Sata), Tokushima University Graduate School of Biomedical Sciences, Japan
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Satoh SS, Murata C, Yoshida K, Shibata K, Tamate HB. Population Genetic Study of the Lesser Japanese Mole Mogera imaizumii using Novel Microsatellite Markers with Special Reference to Sex-Biased Dispersal. Mammal Study 2019. [DOI: 10.3106/ms2018-0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Shin S. Satoh
- Graduate School of Science and Engineering, Yamagata University, Kojirakawa 1-4-12, Yamagata 990-8560, Japan
| | - Chie Murata
- Graduate School of Science and Engineering, Yamagata University, Kojirakawa 1-4-12, Yamagata 990-8560, Japan
| | - Kenji Yoshida
- Graduate School of Science and Engineering, Yamagata University, Kojirakawa 1-4-12, Yamagata 990-8560, Japan
| | - Kiyotaka Shibata
- Ishinomaki Senshu University ,Minamizakai-shinmito 1, Ishinomaki, Miyagi 986-8580, Japan
| | - Hidetoshi B. Tamate
- Department of Science, Faculty of Science, Yamagata University, Kojirakawa 1-4-12, Yamagata 990-8560, Japan
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Saito-Kokusho T, Takeda T, Ojima T, Saito M, Murata C, Hirai H, Suzuki K, Kondo K. SPORTS GROUP PARTICIPATION REDUCES THE ONSET OF DEMENTIA AMONG HIGH-RISK OLDER ADULTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T. Saito-Kokusho
- Department of Social Science, Natl Center for Geriatrics and Gerontology (NCGG), Obu, Aichi, Japan,
| | | | - T. Ojima
- Hamamatsu University School of Medicine, Hamamatsu, Japan,
| | - M. Saito
- Nihon Fukushi University, Nagoya, Japan,
| | - C. Murata
- Department of Social Science, Natl Center for Geriatrics and Gerontology (NCGG), Obu, Aichi, Japan,
| | - H. Hirai
- University of Yamanashi, Kofu, Japan,
| | - K. Suzuki
- Aichi Gakuin University, Nisshin, Japan,
| | - K. Kondo
- Chiba University, Chiba, Japan
- Department of Social Science, Natl Center for Geriatrics and Gerontology (NCGG), Obu, Aichi, Japan,
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Murata C, Saito-Kokusho T, Suzuki T, Kondo K. DOES SOCIAL SUPPORT PROTECT AGAINST COGNITIVE DECLINE AMONG THE OLD?: A 10-YEAR FOLLOW-UP STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C. Murata
- Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - T. Saito-Kokusho
- Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - T. Suzuki
- Obirin University, Tokyo, Japan
- Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
| | - K. Kondo
- Chiba University, Chiba, Japan,
- Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan,
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Valdovinos M, Montijo E, Abreu A, Heller S, González-Garay A, Bacarreza D, Bielsa-Fernández M, Bojórquez-Ramos M, Bosques-Padilla F, Burguete-García A, Carmona-Sánchez R, Consuelo-Sánchez A, Coss-Adame E, Chávez-Barrera J, de Ariño M, Flores-Calderón J, Gómez-Escudero O, González-Huezo M, Icaza-Chávez M, Larrosa-Haro A, Morales-Arámbula M, Murata C, Ramírez-Mayans J, Remes-Troche J, Rizo-Robles T, Peláez-Luna M, Toro-Monjaraz E, Torre A, Urquidi-Rivera M, Vázquez R, Yamamoto-Furusho J, Guarner F. The Mexican consensus on probiotics in gastroenterology. Revista de Gastroenterología de México (English Edition) 2017. [DOI: 10.1016/j.rgmxen.2017.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Muriel-Vizcaíno R, Treviño-Garza G, Murata C, Staines-Boone AT, Yamazaki-Nakashimada MA, Espinosa-Padilla SE, Espinosa-Rosales FJ. Respuesta a la carta al Editor. Acta Pediatr Mex 2017. [DOI: 10.18233/apm38no2pp136-1381367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Le agradecemos por darnos la oportunidad de contestar a la carta “Magnitud del tamaño del efecto y su importancia en la investigación pediátrica”1 del Dr. Tomás Caycho. También quisiéramos agradecer por las observaciones y comentarios del Dr. Caycho, a través de los cuales se señala la importancia y necesidad de reportar tamaño de efecto en los resultados de análisis estadístico en las investigaciones y de nuestro trabajo: “Calidad de vida de los pacientes con inmunodeficiencias primarias de anticuerpos”2 publicado en esta revista.
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Valdovinos MA, Montijo E, Abreu AT, Heller S, González-Garay A, Bacarreza D, Bielsa-Fernández M, Bojórquez-Ramos MC, Bosques-Padilla F, Burguete-García AI, Carmona-Sánchez R, Consuelo-Sánchez A, Coss-Adame E, Chávez-Barrera JA, de Ariño M, Flores-Calderón J, Gómez-Escudero O, González-Huezo MS, Icaza-Chávez ME, Larrosa-Haro A, Morales-Arámbula M, Murata C, Ramírez-Mayans JA, Remes-Troche JM, Rizo-Robles T, Peláez-Luna M, Toro-Monjaraz EM, Torre A, Urquidi-Rivera ME, Vázquez R, Yamamoto-Furusho JK, Guarner F. The Mexican consensus on probiotics in gastroenterology. Rev Gastroenterol Mex 2017; 82:156-178. [PMID: 28104319 DOI: 10.1016/j.rgmx.2016.08.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/17/2016] [Accepted: 08/26/2016] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Probiotics are frequently prescribed in clinical practice. Their efficacy in treating gastrointestinal disorders is supported by a significant number of clinical trials. However, the correct prescription of these agents is hampered due to a lack of knowledge of the scientific evidence and to the different presentations and microbial compositions of the probiotics that are currently available. AIM To provide the clinician with a consensus review of probiotics and recommendations for their use in gastroenterology. MATERIALS AND METHODS Controlled clinical trials, meta-analyses, and systematic reviews published up to 2015 were selected, using the MESH terms: probiotics, gastrointestinal diseases, humans, adults, AND children. The Delphi method was employed. Eighteen gastroenterologists treating adult patients and 14 pediatric gastroenterologists formulated statements that were voted on until agreement>70% was reached. The level of evidence based on the GRADE system was evaluated for each statement. RESULTS AND CONCLUSIONS Eleven statements on the general concepts of probiotics and 27 statements on the use of probiotics in gastrointestinal diseases in both adults and children were formulated. The consensus group recommends the use of probiotics under the following clinical conditions: the prevention of diarrhea associated with antibiotics, the treatment of acute infectious diarrhea, the prevention of Clostridium difficile infection and necrotizing enterocolitis, the reduction of adverse events from Helicobacter pylori eradication therapy, relief from irritable bowel syndrome symptoms, the treatment of functional constipation in the adult, and the induction and maintenance of remission in patients with ulcerative colitis and pouchitis, and the treatment of covert and overt hepatic encephalopathy.
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Affiliation(s)
- M A Valdovinos
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México.
| | - E Montijo
- Departamento de Gastroenterología y Nutrición, Instituto Nacional de Pediatría, Ciudad de México, México
| | - A T Abreu
- Servicio de Gastroendoscopia, Hospital Regional n.(o) 2 con Unidad de Medicina de Atención Ambulatoria, IMSS, Ciudad de México, México
| | - S Heller
- Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México, México
| | - A González-Garay
- Metodología de la Investigación, Instituto Nacional de Pediatría, Ciudad de México, México
| | - D Bacarreza
- Hospital Infantil de las Californias, Tijuana, BC, México
| | - M Bielsa-Fernández
- Unidad de Pacientes en Estudio, Universidad Autónoma de Guadalajara, Zapopan, Jalisco, México
| | - M C Bojórquez-Ramos
- UMAE Hospital de Pediatría, Centro Médico Nacional de Occidente, IMSS, , Guadalajara, Jalisco, México
| | - F Bosques-Padilla
- Departamento de Medicina Interna, División de Gastroenterología, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, N.L., México
| | - A I Burguete-García
- Departamento de Epidemiología Genética e Infecciones, CISEI, INSP, Cuernavaca, Mor., México
| | | | - A Consuelo-Sánchez
- Departamento de Gastroenterología y Nutrición, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - E Coss-Adame
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - J A Chávez-Barrera
- Departamento de Gastroenterología Pediátrica, UMAE Hospital General Dr. Gaudencio González Garza, Centro Médico Nacional La Raza, IMSS, Ciudad de México, México
| | - M de Ariño
- Servicio de Gastroenterología, Hospital Español, Ciudad de México, México
| | - J Flores-Calderón
- Departamento de Gastroenterología y Endoscopia, UMAE Hospital de Pediatría Dr. Silvestre Frenk Freund, Centro Médico Nacional Siglo XXI, Ciudad de México, México
| | - O Gómez-Escudero
- Clínica de Gastroenterología, Endoscopia Digestiva y Motilidad Gastrointestinal, Hospital Ángeles Puebla, Puebla, México
| | - M S González-Huezo
- Departamento de Gastroenterología, Centro Médico Issemym, Metepec, Estado de México, México
| | | | - A Larrosa-Haro
- Instituto de Nutrición Humana, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | | | - C Murata
- Metodología de la Investigación, Instituto Nacional de Pediatría, Ciudad de México, México
| | - J A Ramírez-Mayans
- Departamento de Gastroenterología y Nutrición, Instituto Nacional de Pediatría, Ciudad de México, México
| | - J M Remes-Troche
- Laboratorio de Motilidad y Fisiología Digestiva, Instituto de Investigaciones Médico Biológicas, Universidad Veracruzana (UV), Veracruz, México
| | - T Rizo-Robles
- Servicio de Gastroenterología, Hospital de Especialidades Dr. Antonio Fraga Mouret, Centro Médico Nacional La Raza, IMSS, Ciudad de México, México
| | - M Peláez-Luna
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - E M Toro-Monjaraz
- Departamento de Gastroenterología y Nutrición, Instituto Nacional de Pediatría, Ciudad de México, México
| | - A Torre
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - M E Urquidi-Rivera
- Servicio de Gastroenterología Pediátrica y Endoscopia, Hospital Regional ISSSTE, Monterrey, N.L., México
| | - R Vázquez
- Departamento de Gastroenterología y Nutrición, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - J K Yamamoto-Furusho
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - F Guarner
- Servicio de Aparato Digestivo, Hospital Vall d'Hebrón, Barcelona, España
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Ramírez-López AB, Zúñiga-Lagunes CG, Martínez-Viveros A, Medina-Torres EA, Murata C, Espinosa-Padilla SE, Lugo-Reyes SO. Bajo índice de sospecha para deficiencia de anticuerpos en niños sometidos a procedimientos quirúrgicos de Otorrinolaringología. Acta Pediatr Mex 2016. [DOI: 10.18233/apm37no4pp204-214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
INTRODUCCIÓN: las inmunodeficiencias primarias están subdiagnosticadas en todo el mundo, aun en centros de tercer nivel de atención. Los defectos de anticuerpos constituyen el grupo más prevalente y suelen manifestarse clínicamente después de los 6 meses de edad como infecciones respiratorias recurrentes causadas por bacterias encapsuladas. Algunas cirugías de oído-nariz y garganta se indican en pacientes con infecciones respiratorias recurrentes o complicadas que no han respondido adecuadamente al tratamiento médico. Estos niños sometidos a procedimientos quirúrgicos luego de una historia de infecciones respiratorias recurrentes pueden constituir un grupo de alto riesgo para inmunodeficiencias primarias. OBJETIVO: indagar qué tan frecuentes son los defectos de anticuerpos en niños sometidos a cualquiera de tres cirugías de otorrinolaringología. MATERIALES Y MÉTODOS: revisamos los expedientes electrónicos de niños que hubieran sido sometidos a adenoamigdalectomía (ATT), drenaje endoscópico de senos paranasales (ESD) y colocación de tubos timpánicos de ventilación (TVT) en nuestro instituto durante 2011-2012, en busca de niveles séricos de inmunoglobulinas (IgE, IgG, IgA, IgM). RESULTADOS: encontramos 112 procedimientos quirúrgicos en 87 pacientes, de los cuales la indicación para cirugía fue infecciosa en 37 (21 varones, 1 muerto, edad media 7.3 años), más frecuentemente rinosinusitis (19/37) y amigdalitis (9/37) crónicas. Los procedimientos incluyeron: 24 adenoamigdalectomías, 13 drenajes endoscópicos de senos paranasales y 6 colocaciones de tubos timpánicos de ventilación, para un total de 43; ocho pacientes (21.6%) fueron sometidos a más de una cirugía. La IgE sérica se encontró en el expediente de 27 pacientes (72.9%), y “al menos IgG” en 18 (48.6%). Sólo 70% de las pruebas fueron ordenadas antes de la cirugía. Los resultados anormales incluyeron: IgE elevada en 10/27, IgG elevada en 8/18, IgG baja 1/18, IgM elevada 3/17 e IgA elevada en 5/17. Dos niños con enfermedad granulomatosa crónica fueron identificados a través de esta búsqueda electrónica. CONCLUSIONES: describimos 37 pacientes sometidos a cirugía de otorrinolaringología por una historia de infecciones respiratorias recurrentes, complicadas o refractarias, de los cuales al menos nueve eran alérgicos y al menos dos tenían una inmunodeficiencia primaria. Sólo 18 de esos 37 tenían determinación de IgG como parte de su evaluación preoperatoria; un índice alarmantemente bajo de sospecha para defectos de anticuerpos. Estudios previos en adultos con rinosinusitis crónica han encontrado defectos de anticuerpos. Planeamos completar la evaluación inmunológica de los 37 pacientes, incluyendo para deficiencia específica de anticuerpos (SAD). Banderas rojas como IgE >2,000 IU/mL, neumonía complicada o cultivo de Aspergillus pueden ser útiles para detectar pacientes con inmunodeficiencia primaria no diagnosticada.
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Murata C, Kuroki Y, Imoto I, Kuroiwa A. Ancestral Y-linked genes were maintained by translocation to the X and Y chromosomes fused to an autosomal pair in the Okinawa spiny rat Tokudaia muenninki. Chromosome Res 2016; 24:407-19. [DOI: 10.1007/s10577-016-9531-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 06/14/2016] [Indexed: 11/29/2022]
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11
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Nishimoto S, Fukuda D, Higashikuni Y, Tanaka K, Hirata Y, Murata C, Kim-Kaneyama JR, Sato F, Bando M, Yagi S, Soeki T, Hayashi T, Imoto I, Sakaue H, Shimabukuro M, Sata M. Obesity-induced DNA released from adipocytes stimulates chronic adipose tissue inflammation and insulin resistance. Sci Adv 2016; 2:e1501332. [PMID: 27051864 PMCID: PMC4820373 DOI: 10.1126/sciadv.1501332] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 02/11/2016] [Indexed: 05/08/2023]
Abstract
Obesity stimulates chronic inflammation in adipose tissue, which is associated with insulin resistance, although the underlying mechanism remains largely unknown. Here we showed that obesity-related adipocyte degeneration causes release of cell-free DNA (cfDNA), which promotes macrophage accumulation in adipose tissue via Toll-like receptor 9 (TLR9), originally known as a sensor of exogenous DNA fragments. Fat-fed obese wild-type mice showed increased release of cfDNA, as determined by the concentrations of single-stranded DNA (ssDNA) and double-stranded DNA (dsDNA) in plasma. cfDNA released from degenerated adipocytes promoted monocyte chemoattractant protein-1 (MCP-1) expression in wild-type macrophages, but not in TLR9-deficient (Tlr9 (-/-) ) macrophages. Fat-fed Tlr9 (-/-) mice demonstrated reduced macrophage accumulation and inflammation in adipose tissue and better insulin sensitivity compared with wild-type mice, whereas bone marrow reconstitution with wild-type bone marrow restored the attenuation of insulin resistance observed in fat-fed Tlr9 (-/-) mice. Administration of a TLR9 inhibitory oligonucleotide to fat-fed wild-type mice reduced the accumulation of macrophages in adipose tissue and improved insulin resistance. Furthermore, in humans, plasma ssDNA level was significantly higher in patients with computed tomography-determined visceral obesity and was associated with homeostasis model assessment of insulin resistance (HOMA-IR), which is the index of insulin resistance. Our study may provide a novel mechanism for the development of sterile inflammation in adipose tissue and a potential therapeutic target for insulin resistance.
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Affiliation(s)
- Sachiko Nishimoto
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Daiju Fukuda
- Department of Cardiovascular Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
- Corresponding author. E-mail: (D.F.); (M.S.)
| | - Yasutomi Higashikuni
- Department of Cardiovascular Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Kimie Tanaka
- Division for Health Service Promotion, The University of Tokyo, Tokyo 113-8655, Japan
| | - Yoichiro Hirata
- Department of Pediatrics, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Chie Murata
- Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Joo-ri Kim-Kaneyama
- Department of Biochemistry, Showa University School of Medicine, Tokyo 142-8555, Japan
| | - Fukiko Sato
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Masahiro Bando
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Shusuke Yagi
- Department of Cardiovascular Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Takeshi Soeki
- Department of Cardiovascular Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Tetsuya Hayashi
- Laboratory of Cardiovascular Pharmacotherapy and Toxicology, Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Issei Imoto
- Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Michio Shimabukuro
- Department of Cardio-Diabetes Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
- Diabetes and Lifestyle-Related Disease Center, Tomishiro Central Hospital, Okinawa 901-0243, Japan
| | - Masataka Sata
- Department of Cardiovascular Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
- Corresponding author. E-mail: (D.F.); (M.S.)
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Murata C, Sawaya H, Nakata K, Yamada F, Imoto I, Kuroiwa A. The cryptic Y-autosome translocation in the small Indian mongoose, Herpestes auropunctatus, revealed by molecular cytogenetic approaches. Chromosoma 2016; 125:807-15. [PMID: 26743516 DOI: 10.1007/s00412-015-0572-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 12/16/2015] [Accepted: 12/28/2015] [Indexed: 11/27/2022]
Abstract
In initial studies of the eutherian small Indian mongoose (Herpestes auropunctatus), the Y chromosome could not be identified in somatic cells. The male chromosome number is uniquely odd, 2n = 35, whereas that of females is 2n = 36. Previous reports indicated that this unique karyotype resulted from a translocation of the ancestral Y chromosome to an autosome. However, it has been difficult to identify the chromosomes that harbor the translocated Y chromosomal segment because it is an extremely small euchromatic region. Using a Southern blot analysis, we detected four conserved Y-linked genes, SRY, EIF2S3Y, KDM5D, and ZFY, in the male genome. We cloned homologues of these genes and determined their sequences, which showed high homology to genes in two carnivore species, cat and dog. To unambiguously identify the Y-bearing autosome, we performed immunostaining of pachytene spermatocytes using antibodies against SYCP3, γH2AX, and the centromere. We observed trivalent chromosomes, and the associations between the distal ends of the chromosomes were consistent with those of Y and X1 chromosomes. The centromere of the Y chromosome was located on the ancestral Y chromosomal segment. We mapped the complementary DNA (cDNA) clones of these genes to the male chromosomes using fluorescence in situ hybridization (FISH), and the linear localization of all genes was confirmed by two-colored FISH. These Y-linked genes were localized to the proximal region of the long arm of a single telomeric chromosome, and we successfully identified the chromosome harboring the ancestral Y chromosomal segment.
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Affiliation(s)
- Chie Murata
- Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Hirohito Sawaya
- Graduate School of Life Science, Hokkaido University, North 10, West 8, Kita-ku, Sapporo, 060-0810, Japan
| | - Katsushi Nakata
- Yambaru Wildlife Conservation Center, Ministry of the Environment, 263-1 Hiji, Kunigami-son, Kunigami-gun, Okinawa, 905-1413, Japan
| | - Fumio Yamada
- Forestry and Forest Products Research Institute, Matsunosato 1, Tsukuba, Ibaraki, 305-8687, Japan
| | - Issei Imoto
- Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Asato Kuroiwa
- Laboratory of Animal Cytogenetics, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido, 060-0810, Japan.
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Murata C, Kuroki Y, Imoto I, Tsukahara M, Ikejiri N, Kuroiwa A. Initiation of recombination suppression and PAR formation during the early stages of neo-sex chromosome differentiation in the Okinawa spiny rat, Tokudaia muenninki. BMC Evol Biol 2015; 15:234. [PMID: 26514418 PMCID: PMC4625939 DOI: 10.1186/s12862-015-0514-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/20/2015] [Indexed: 11/17/2022] Open
Abstract
Background Sex chromosomes of extant eutherian species are too ancient to reveal the process that initiated sex-chromosome differentiation. By contrast, the neo-sex chromosomes generated by sex-autosome fusions of recent origin in Tokudaia muenninki are expected to be evolutionarily ‘young’, and therefore provide a good model in which to elucidate the early phases of eutherian sex chromosome evolution. Here we describe the genomic evolution of T. muenninki in neo-sex chromosome differentiation. Results FISH mapping of a T. muenninki male, using 50 BAC clones as probes, revealed no chromosomal rearrangements between the neo-sex chromosomes. Substitution-direction analysis disclosed that sequence evolution toward GC-richness, which positively correlates with recombination activity, occurred in the peritelomeric regions, but not middle regions of the neo-sex chromosomes. In contrast, the sequence evolution toward AT-richness was observed in those pericentromeric regions. Furthermore, we showed genetic differentiation between the pericentromeric regions as well as an accelerated rate of evolution in the neo-Y region through the detection of male-specific substitutions by gene sequencing in multiple males and females, and each neo-sex–derived BAC sequencing. Conclusions Our results suggest that recombination has been suppressed in the pericentromeric region of neo-sex chromosomes without chromosome rearrangement, whereas high levels of recombination activity is limited in the peritelomeric region of almost undifferentiated neo-sex chromosomes. We conclude that PAR might have been formed on the peritelomeric region of sex chromosomes as an independent event from spread of recombination suppression during the early stages of sex chromosome differentiation. Electronic supplementary material The online version of this article (doi:10.1186/s12862-015-0514-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chie Murata
- Department of Human Genetics, Institute of Health Biosciences, Tokushima University Graduate School, 3-18-15, Kuramoto-cho, Tokushima, Japan.
| | - Yoko Kuroki
- RIKEN, Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Kanagawa, Japan. .,Present address: Division of Pediatric Disease Genomics, Department of Genome Medicine, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan.
| | - Issei Imoto
- Department of Human Genetics, Institute of Health Biosciences, Tokushima University Graduate School, 3-18-15, Kuramoto-cho, Tokushima, Japan.
| | - Masaru Tsukahara
- Student Laboratory, Faculty of Medicine, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima, Japan.
| | - Naoto Ikejiri
- Student Laboratory, Faculty of Medicine, Tokushima University, 3-18-15, Kuramoto-cho, Tokushima, Japan.
| | - Asato Kuroiwa
- Laboratory of Animal Cytogenetics, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido, Japan.
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Kimura R, Murata C, Kuroki Y, Kuroiwa A. Mutations in the testis-specific enhancer of SOX9 in the SRY independent sex-determining mechanism in the genus Tokudaia. PLoS One 2014; 9:e108779. [PMID: 25265165 PMCID: PMC4181316 DOI: 10.1371/journal.pone.0108779] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 09/04/2014] [Indexed: 01/09/2023] Open
Abstract
SRY (sex-determining region Y) is widely conserved in eutherian mammals as a sex-determining gene located on the Y chromosome. SRY proteins bind to the testis-specific enhancer of SOX9 (TES) with SF1 to upregulate SOX9 expression in undifferentiated gonads of XY embryos of humans and mice. The core region within TES, named TESCO, is an important enhancer for mammalian sex determination. We show that TESCO of the genus Tokudaia lost enhancer activity caused by mutations in its SRY and SF1 binding sites. Two species of Tokudaia do not have the Y chromosome or SRY, and one species has multiple SRYs located on the neo-Y chromosome consisting of the Y fused with an autosome. The sequence of Tokudaia TESCO exhibited more than 83% identity with mouse TESCO, however, nucleotide substitution(s) were found in two out of three SRY binding sites and in five out of six SF1 binding sites. TESCO of all species showed low enhancer activity in cells co-transfected with SRY and SF1, and SOX9 and SF1 in reporter gene assays. Mutated TESCO, in which nucleotide substitutions found in SRY and SF1 binding sites were replaced with mouse sequence, recovered the activity. Furthermore, SRYs of the SRY-positive species could not activate the mutated TESCO or mouse TESCO, suggesting that SRYs lost function as a sex-determining gene any more. Our results indicate that the SRY dependent sex-determining mechanism was lost in a common ancestor of the genus Tokudaia caused by nucleotide substitutions in SRY and SF1 binding sites after emergence of a new sex-determining gene. We present the first evidence for an intermediate stage of the switchover from SRY to a new sex-determining gene in the evolution of mammalian sex-determining mechanism.
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Affiliation(s)
- Ryutaro Kimura
- Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Chie Murata
- Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Yoko Kuroki
- RIKEN, Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
| | - Asato Kuroiwa
- Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido, Japan
- Laboratory of Animal Cytogenetics, Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Hokkaido, Japan
- * E-mail:
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Haraoka T, Hayasaka S, Murata C, Ojima T. Prevention of injuries and diseases in non-professional disaster volunteer activities in the Great East Japan Earthquake areas: A preliminary study. Public Health 2013; 127:72-5. [DOI: 10.1016/j.puhe.2012.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 10/22/2011] [Accepted: 09/20/2012] [Indexed: 11/24/2022]
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Oishi S, Kanda G, Takehara A, Tanaka N, Kurita K, Murata C, Tamada T, Tujii Y, Toba T, Taniguchi Y. Sincere Effort for Palliative Care in Chronic Heart Failure∼Challenges at a Cardiovascular Center∼. J Card Fail 2012. [DOI: 10.1016/j.cardfail.2012.08.220] [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: 11/28/2022]
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Ojima T, Nakamura M, Yasuda T, Noda T, Murata C, Hayasaka S, Tonai S, Nagai A, Tanaka T, Kondo N, Suzuki K, Yamagata Z. P1-265 Effectiveness of smoking prevention programs for maternal and child health. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976e.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Noda T, Ojima T, Hashimoto S, Kawado M, Seko R, Kato M, Murata C, Hayasaka S, Hayashi M, Murakami Y, Nagai M, Tsuji I. SP3-40 Disability-free life expectancy and related factors in Japan. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976o.40] [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: 11/03/2022]
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Yamada F, Kawauchi N, Nakata K, Abe S, Kotaka N, Takashima A, Murata C, Kuroiwa A. Rediscovery After Thirty Years Since the Last Capture of the Critically Endangered Okinawa Spiny RatTokudaia muenninkiin the Northern Part of Okinawa Island. Mammal Study 2010. [DOI: 10.3106/041.035.0404] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Abstract
To enable the accurate sexing of individuals of introduced populations of the small Indian mongoose, Herpestes auropunctatus, we designed a primer set for the amplification of the sex-specific fragments EIF2S3Y and EIF2S3X. Using this primer set, the expected amplification products were obtained for all samples of genomic DNA tested: males yielded two bands and females a single band. Sequencing of each PCR product confirmed that the 769-bp fragment amplified from DNA samples of both sexes was derived from EIF2S3X, whereas the 546-bp fragment amplified only from male DNA samples was derived from EIF2S3Y. The results indicated that this primer set is useful for sex identification in this species.
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Affiliation(s)
- C Murata
- Graduate School of Life Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido, Japan
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Hayasaka S, Murata C, Shibata Y, Noda T, Ojima T, Takemura S. Authors' response. Public Health 2009. [DOI: 10.1016/j.puhe.2008.12.004] [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: 11/15/2022]
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Nakano-Kobayashi A, Yamazaki M, Unoki T, Hongu T, Murata C, Taguchi R, Katada T, Frohman MA, Yokozeki T, Kanaho Y. Role of activation of PIP5Kgamma661 by AP-2 complex in synaptic vesicle endocytosis. EMBO J 2007; 26:1105-16. [PMID: 17290217 PMCID: PMC1852847 DOI: 10.1038/sj.emboj.7601573] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2006] [Accepted: 01/04/2007] [Indexed: 11/09/2022] Open
Abstract
Synaptic vesicles (SVs) are retrieved by clathrin-mediated endocytosis at the nerve terminals. Phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] drives this event by recruiting the components of the endocytic machinery. However, the molecular mechanisms that result in local generation of PI(4,5)P2 remain unclear. We demonstrate here that AP-2 complex directly interacts with phosphatidylinositol 4-phosphate 5-kinase gamma661 (PIP5Kgamma661), the major PI(4,5)P2-producing enzyme in the brain. The beta2 subunit of AP-2 was found to bind to the C-terminal tail of PIP5Kgamma661 and cause PIP5Kgamma661 activation. The interaction is regulated by PIP5Kgamma661 dephosphorylation, which is triggered by depolarization in mouse hippocampal neurons. Finally, overexpression of the PIP5Kgamma661 C-terminal region in hippocampal neurons suppresses depolarization-dependent SV endocytosis. These findings provide evidence for the molecular mechanism through which PIP5Kgamma661 locally generates PI(4,5)P2 in hippocampal neurons and suggest a model in which the interaction trigger SV endocytosis.
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Affiliation(s)
- Akiko Nakano-Kobayashi
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Masakazu Yamazaki
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Takamitsu Unoki
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Tsunaki Hongu
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Chie Murata
- Department of Metabolome, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Ryo Taguchi
- Department of Metabolome, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Toshiaki Katada
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Michael A Frohman
- Center for Developmental Genetics and Department of Pharmacology, Stony Brook University, New York, NY, USA
| | - Takeaki Yokozeki
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Yasunori Kanaho
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
- Department of Physiological Chemistry, Graduate School of Comprehensive Human Sciences and Institute of Basic Medical Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba 305-0006, Japan. Tel.: +81 29 853 3282; Fax: +81 29 853 3271; E-mail:
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Tsumoto H, Murata C, Miyata N, Kohda K, Taguchi R. Efficient identification and quantification of proteins using isotope-coded 1-(6-methylnicotinoyloxy)succinimides by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Rapid Commun Mass Spectrom 2007; 21:3815-3824. [PMID: 17972273 DOI: 10.1002/rcm.3279] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We describe a convenient and useful method for the identification and relative quantification of proteins using light and heavy reagents, 1-(6-methylnicotinoyloxy)succinimides (6-CH(3)-Nic-NHS and 6-CD(3)-Nic-NHS, respectively). This method is based on the chemical derivatization of amino groups of tryptic peptides with these reagents, i.e., the basic moiety of the reagents thus incorporated into both the N-terminal amino group and the epsilon-amino group of the lysine residue would improve the ionization efficiency of tryptic peptides. An increase in protein sequence coverage is achieved by derivatization with these reagents or by combination of mass values before and after derivatization. Since a combination of 6-CH(3)-Nic-NHS and d(3)-labeled reagent (6-CD(3)-Nic-NHS) generates a 3 Da mass difference per reaction site, the d(3)-labeled reagent shifts the mass values of d(0)-labeled peptides according to the number of reactive amino groups in the peptides. In the case of tryptic peptides, the mass values of C-terminal arginine and lysine peptides are shifted by 3 and 6 Da, respectively. Further, the 3 Da mass difference between 6-CH(3)-Nic-NHS and 6-CD(3)-Nic-NHS offers a means for the relative quantification of protein by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.
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Affiliation(s)
- Hiroki Tsumoto
- Research Institute of Pharmaceutical Sciences, Musashino University, Shinmachi Nishitokyo-shi, Tokyo 202-8585, Japan
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Wada K, Tamakoshi K, Tsunekawa T, Otsuka R, Zhang H, Murata C, Nagasawa N, Matsushita K, Sugiura K, Yatsuya H, Toyoshima H. Validity of self-reported height and weight in a Japanese workplace population. Int J Obes (Lond) 2006; 29:1093-9. [PMID: 15925952 DOI: 10.1038/sj.ijo.0803012] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To assess the validity of self-reported height and weight in a Japanese workplace population, and to examine factors associated with the validity of self-reported weight. DESIGN Comparison of self-reported height and weight with independent measurement. SUBJECTS In total, 4253 men and 1148 women aged 35-64 y (mean measured body mass index (BMI): 23.3 kg/m(2) in men, 21.9 kg/m(2) in women) were included in the study. MEASUREMENTS Self-reported height and weight were obtained by a self-administered questionnaire. Measured height and weight were based on annual health checkups. Sex, age, measured BMI, and the presence of hypertension, diabetes, and hyperlipidemia were examined as potential factors associated with the accuracy of self-reported weight. RESULTS Self-reported height and weight were highly correlated with measured height and weight for men and women (Pearson's r for men and women: 0.979 and 0.988 in height, 0.961 and 0.959 in weight, 0.943 and 0.950 in BMI, respectively). For men, mean differences+/-2 s.d. of height and weight were 0.078+/-2.324 cm and -0.034+/-5.012 kg, respectively, and for women 0.029+/-1.652 cm and 0.024+/-4.192 kg, respectively. The prevalence of obesity with BMI > or =25 kg/m(2) based on self-reported data (23.6 and 11.5% for men and women, respectively) was slightly smaller than that based on measured data (24.9 and 12.4%, respectively). Specificity and sensitivity, however, were quite high for both men and women (sensitivity was 85.8 and 85.2%, and specificity was 97.0 and 98.9%, respectively). The subjects with higher measured BMI significantly underestimated their weight compared with those with smaller BMI after adjustments for age in men and women. Furthermore, the presence of diabetes in men and age in women affected self-reported weight. Neither the presence of hypertension nor hyperlipidemia was associated with reporting bias. CONCLUSION The self-reported height and weight were generally reliable in the middle-aged employed Japanese men and women. However, it should be remembered that self-reported weight was biased by actual BMI and affected by age and the presence of diabetes.
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Affiliation(s)
- K Wada
- Department of Public Health/Health Information Dynamics, Program in Health and Community Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Tashima Y, Taguchi R, Murata C, Ashida H, Kinoshita T, Maeda Y. PGAP2 is essential for correct processing and stable expression of GPI-anchored proteins. Mol Biol Cell 2006; 17:1410-20. [PMID: 16407401 PMCID: PMC1382328 DOI: 10.1091/mbc.e05-11-1005] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [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: 11/11/2022] Open
Abstract
Biosynthesis of glycosylphosphatidylinositol-anchored proteins (GPI-APs) in the ER has been extensively studied, whereas the molecular events during the transport of GPI-APs from the ER to the cell surface are poorly understood. Here, we established new mutant cell lines whose surface expressions of GPI-APs were greatly decreased despite normal biosynthesis of GPI-APs in the ER. We identified a gene responsible for this defect, designated PGAP2 (for Post-GPI-Attachment to Proteins 2), which encoded a Golgi/ER-resident membrane protein. The low surface expression of GPI-APs was due to their secretion into the culture medium. GPI-APs were modified/cleaved by two reaction steps in the mutant cells. First, the GPI anchor was converted to lyso-GPI before exiting the trans-Golgi network. Second, lyso-GPI-APs were cleaved by a phospholipase D after transport to the plasma membrane. Therefore, PGAP2 deficiency caused transport to the cell surface of lyso-GPI-APs that were sensitive to a phospholipase D. These results demonstrate that PGAP2 is involved in the processing of GPI-APs required for their stable expression at the cell surface.
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Affiliation(s)
- Yuko Tashima
- Department of Immunoregulation, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
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Kondoh G, Tojo H, Nakatani Y, Komazawa N, Murata C, Yamagata K, Maeda Y, Kinoshita T, Okabe M, Taguchi R, Takeda J. Angiotensin-converting enzyme is a GPI-anchored protein releasing factor crucial for fertilization. Nat Med 2005; 11:160-6. [PMID: 15665832 PMCID: PMC7095966 DOI: 10.1038/nm1179] [Citation(s) in RCA: 178] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2004] [Accepted: 12/08/2004] [Indexed: 12/13/2022]
Abstract
The angiotensin-converting enzyme (ACE) is a key regulator of blood pressure. It is known to cleave small peptides, such as angiotensin I and bradykinin and changes their biological activities, leading to upregulation of blood pressure. Here we describe a new activity for ACE: a glycosylphosphatidylinositol (GPI)-anchored protein releasing activity (GPIase activity). Unlike its peptidase activity, GPIase activity is weakly inhibited by the tightly binding ACE inhibitor and not inactivated by substitutions of core amino acid residues for the peptidase activity, suggesting that the active site elements for GPIase differ from those for peptidase activity. ACE shed various GPI-anchored proteins from the cell surface, and the process was accelerated by the lipid raft disruptor filipin. The released products carried portions of the GPI anchor, indicating cleavage within the GPI moiety. Further analysis by high-performance liquid chromatography–mass spectrometry predicted the cleavage site at the mannose-mannose linkage. GPI-anchored proteins such as TESP5 and PH-20 were released from the sperm membrane of wild-type mice but not in Ace knockout sperm in vivo. Moreover, peptidase-inactivated E414D mutant ACE and also PI-PLC rescued the egg-binding deficiency of Ace knockout sperms, implying that ACE plays a crucial role in fertilization through this activity.
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Affiliation(s)
- Gen Kondoh
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, 2-2 Yamadaoka, Osaka, 565-0871 Japan
- Present Address: Laboratory of Animal Experiments for Regeneration, Institute for Frontier Medical Sciences, Kyoto University, Japan
- Present Address: CREST, Japan Science and Technology Society, 53 Syogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507 Japan
| | - Hiromasa Tojo
- Department of Biochemistry and Molecular Biology, Graduate School of Medicine, Osaka University, Suita, 2-2 Yamadaoka, Osaka, 565-0871 Japan
| | - Yuka Nakatani
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, 2-2 Yamadaoka, Osaka, 565-0871 Japan
| | - Nobuyasu Komazawa
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, 2-2 Yamadaoka, Osaka, 565-0871 Japan
| | - Chie Murata
- Department of Metabolome, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan
| | - Kazuo Yamagata
- Genome Information Research Center, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
- Present Address: Institute of Applied Biochemistry, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba Science City, Ibaraki, 305-8572 Japan
| | - Yusuke Maeda
- Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
| | - Taroh Kinoshita
- Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
- Present Address: CREST, Japan Science and Technology Society, 53 Syogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507 Japan
| | - Masaru Okabe
- Genome Information Research Center, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
| | - Ryo Taguchi
- Department of Metabolome, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan
- Present Address: CREST, Japan Science and Technology Society, 53 Syogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507 Japan
| | - Junji Takeda
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, 2-2 Yamadaoka, Osaka, 565-0871 Japan
- Center for Advanced Science and Innovation, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871 Japan
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Murata C, Taniyama M, Kuriyama S, Muramatsu T, Atsumi Y, Matsuoka K, Suzuki Y. Meta-analysis of three diabetes population studies: association of inactive ALDH2 genotype with maternal inheritance of diabetes. Diabetes Res Clin Pract 2004; 66 Suppl 1:S145-7. [PMID: 15563966 DOI: 10.1016/j.diabres.2003.11.022] [Citation(s) in RCA: 15] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2003] [Accepted: 11/20/2003] [Indexed: 11/23/2022]
Abstract
To date, there have been three population studies that examined the association of mitochondrial aldehyde dehydrogenase 2 (ALDH2) genotype with inheritance of diabetes. Here, we summarize the results by meta-analysis. The study 1 consisted of 212 type 2 diabetics who did not have renal failure. The study 2 consisted of 73 type 2 diabetics who had renal failure. The study 3 consisted of 230 type 1 diabetics. In total, 515 subjects were examined for the association of ALDH2 genotype with inheritance of diabetes. Out of 515 subjects, 307 (60%) had active ALDH2 (ALDH2*1/ALDH2*1) and 208 (40%) had inactive ALDH2 (175 had ALDH2*1/ALDH2*2 and 33 had ALDH2*2/ALDH2*2). As for family history, 25 subjects (8.1%) in the active ALDH2 group had a diabetic mother, compared with 43 (20.6%) in the inactive ALDH2 group. Twenty-nine subjects (9.4%) in the active ALDH2 group had a diabetic father, compared with 14 (6.7%) in the inactive ALDH2 group. The percentage of diabetic mother was higher in the inactive ALDH2 group, the differences were statistically significant (P < 0.0001). We hence speculate that diabetic patients with inactive ALDH2 genotype may have underlying background of mitochondria etiology, thereby showing maternal trait of diabetes inheritance. In conclusion, meta-analysis using three diabetes population studies strongly confirmed the association between ALDH2 inactivity and maternal inheritance.
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Affiliation(s)
- C Murata
- Saiseikai Central Hospital, 1-4-17 Mitra, Minato-ku, Tokyo, Japan. chisato-@gd5.so-net.ne.jp
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Suzuki Y, Oka Y, Taniyama M, Murata C, Atsumi Y, Matsuoka K. A case of type 2 diabetes with high levels of plasma and urinary C-peptide. Diabetes Res Clin Pract 2004; 66 Suppl 1:S125-8. [PMID: 15563962 DOI: 10.1016/j.diabres.2004.05.011] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2003] [Accepted: 07/28/2003] [Indexed: 10/26/2022]
Abstract
By screening 204 diabetes patients, a male with age 38 was found to have increased C-peptide levels in plasma (over 6 ng/ml) and urine (430 microg/day), both of which were the highest among the screened subjects. He developed type 2 diabetes at age 31, without history of obesity (weight was 52 kg and height 170 cm). He had bilateral testicular atrophy. Fasting plasma glucose level was 160 mg/dl and HbA1c was 8% at age 38. There was hypertriglycemia (290-662 mg/dl). There were no abnormal peaks of IRI or CPR in the serum fractionated by gel filtration (Biogel P 30). Molar ratio of p-CPR/s-IRI was 10.8. Islet cell antibody, anti-insulin binding antibody and anti-insulin receptor antibody were negative. LSH and FSH were both elevated, and free testosterone was decreased. TSH and Leptin levels were elevated. Other laboratory data were within normal range. CT scan revealed fatty liver and horse-shoe kidney. These clinical pictures do not match the criteria to known syndromes associated with diabetes. Although the single case report is insufficient to discuss the C-peptide mechanism of action, this case may give us a hint to understand an aspect of the pathophysiology of C-peptide's bioactivity dysfunction.
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Affiliation(s)
- Y Suzuki
- Hoken Dohjin Medical Foundation, Tokyo, Japan.
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Tsumoto H, Murata C, Miyata N, Taguchi R, Kohda K. Preparation of deuterated methyl and dimethyl substituted nicotinoylating agents for derivatization of the N-terminal of protein. Chem Pharm Bull (Tokyo) 2004; 51:1399-401. [PMID: 14646316 DOI: 10.1248/cpb.51.1399] [Citation(s) in RCA: 6] [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: 11/22/2022]
Abstract
Methyl groups of 6-methylnicotinic acid and 2,6-dimethylnicotinic acid were deuterated by an H-D exchange reaction under conditions of 1% NaOD/D(2)O on heating. With a condensation reaction between the D-labeled nicotinic acid derivative and N-hydroxysuccinimide with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride, the nicotinoylating agents, 1-(6-methyl[D(3)]nicotinoyloxy)succinimide (2c) and 1-(2,6-dimethyl[D(6)]nicotinoyloxy)succinimide (2f) were prepared. Both D-labeled nicotinoylating agents and their unlabeled counterparts quantitatively modified the N-terminal of protein.
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Affiliation(s)
- Hiroki Tsumoto
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Japan
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Tamakoshi K, Yatsuya H, Kondo T, Ishikawa M, Zhang H, Murata C, Otsuka R, Mabuchi T, Hori Y, Zhu S, Yoshida T, Toyoshima H. Long-term body weight variability is associated with elevated C-reactive protein independent of current body mass index among Japanese men. Int J Obes (Lond) 2003; 27:1059-65. [PMID: 12917711 DOI: 10.1038/sj.ijo.0802386] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [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: 02/04/2023]
Abstract
OBJECTIVE To elucidate the effect of long-term weight variability on C-reactive protein (CRP) levels. DESIGN Cross-sectional study of the circulating CRP. SUBJECTS A total of 637 Japanese men aged 40-49 y in1997. MEASUREMENTS Serum CRP levels, body mass index in 1997 (current BMI), the slope of weight on age (weight-slope) representing an individual's weight trend of direction and magnitude, and the root mean square error around the slope of weight on age (weight-RMSE) representing the weight fluctuation magnitude, as calculated by a simple linear regression model in which each value of the subject's five actual weights (aged 20, 25, 30 y, five years ago, and current) was a dependent variable and the subject's ages independent variables. RESULTS After adjustment for age and confounders, including smoking and health status, the odds ratios of elevated CRP (> or =0.06 mg/dl) were 1.83 (95% CI: 1.25-2.69), 2.63 (1.69-4.11), and 10.31 (2.17-48.98) for upper normal-weight (BMI: 22-<25 kg/m(2)), overweight (25-<30), and obese (> or =30) persons, respectively, compared with lower normal-weight persons (18.5-<22). Adjusting for age, confounders, and current BMI, weight-slope was positively associated with CRP level especially among subjects with BMI> or =25 kg/m(2) (trend P<0.01), and weight-RMSE was positively associated with CRP level particularly among subjects with BMI <25 kg/m(2) (trend P<0.05). CONCLUSION Our results suggest a state of low-grade systemic inflammation not only in overweight and obese persons, but also in normal-weight persons with large weight fluctuation, possibly explaining in part the positive association between weight fluctuation and CVD.
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Affiliation(s)
- K Tamakoshi
- Department of Public Health/ Health Information Dynamics, Field of Social Life Science, Program in Health and Community Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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Suzuki Y, Kuriyama S, Atsumi Y, Murata C, Matsuoka K, Suzuki Y, Taniyama M, Muramatsu T, Suzuki Y, Ohta S. Maternal inheritance of diabetes is associated with inactive ALDH2 genotype in diabetics with renal failure in Japanese. Diabetes Res Clin Pract 2003; 60:143-5. [PMID: 12706324 DOI: 10.1016/s0168-8227(03)00020-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Tamakoshi K, Yatsuya H, Kondo T, Hori Y, Ishikawa M, Zhang H, Murata C, Otsuka R, Zhu S, Toyoshima H. The metabolic syndrome is associated with elevated circulating C-reactive protein in healthy reference range, a systemic low-grade inflammatory state. Int J Obes (Lond) 2003; 27:443-9. [PMID: 12664077 DOI: 10.1038/sj.ijo.0802260] [Citation(s) in RCA: 163] [Impact Index Per Article: 7.8] [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: 11/09/2022]
Abstract
OBJECTIVE To elucidate the underlying mechanisms between C-reactive protein (CRP) and cardiovascular disease, we examined the association of circulating CRP in healthy reference range (< or =1.0 mg/dl) measured by high-sensitive CRP assay with the metabolic syndrome (MS). DESIGN Cross-sectional study of circulating CRP in adult men. SUBJECTS A total of 3692 Japanese men aged 34-69 y. MEASUREMENTS Serum CRP, total cholesterol, triglycerides, LDL-cholesterol, fasting glucose, fasting insulin, uric acid, systolic blood pressure, diastolic blood pressure, and body mass index (BMI). RESULTS There was a statistically significant positive correlation between CRP and BMI (r=0.25), total cholesterol (r=0.096), triglycerides (r=0.22), LDL-cholesterol (r=0.12), fasting glucose (r=0.088), fasting insulin (r=0.17), uric acid (r=0.13), systolic blood pressure (r=0.12), and diastolic blood pressure (r=0.11), and a significant negative correlation of CRP with HDL-cholesterol (r=0.24). After adjusting for age, smoking, and all other components of MS, obesity, hypertriglyceridemia, hyper-LDL-cholesterolemia, diabetes, hyperinsulinemia, and hyperuricemia were significantly associated with both mildly (> or =0.06 mg/dl) and moderately (> or =0.11 mg/dl) elevated CRP. Compared with men who had no such components of the MS, those who had one, two, three, four, and five or more components were, respectively, 1.48, 1.84, 1.92, 3.42, and 4.17 times more likely to have mildly elevated CRP levels (trend P<0.001). As for moderately elevated CRP, the same association was observed. CONCLUSIONS These results indicate that a variety of components of the MS are associated with elevated CRP levels in a systemic low-grade inflammatory state.
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Affiliation(s)
- K Tamakoshi
- Department of Public Health/Health Information Dynamics, Field of Social Life Science, Program in Health and Community Medicine, Nagoya University Graduate School of Medicine, Japan.
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Murata C, Yoshida H, Hattori T. Visible light-induced photoepoxidation of propene by molecular oxygen over chromia-silica catalysts. Chem Commun (Camb) 2001:2412-3. [PMID: 12239991 DOI: 10.1039/b108063f] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly dispersed chromate species on silica catalyse the selective epoxidation of propene to propene oxide (PO) by molecular oxygen under visible light irradiation with the same quantum yield as that under UV light irradiation.
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Affiliation(s)
- C Murata
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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Murata C, Suzuki Y, Muramatsu T, Taniyama M, Atsumi Y, Matsuoka K, Watanabe T, Okazaki I. Inactive aldehyde dehydrogenase 2 worsens glycemic control in patients with type 2 diabetes mellitus who drink low to moderate amounts of alcohol. Alcohol Clin Exp Res 2000; 24:5S-11S. [PMID: 10803771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND Alcohol intake can have hypoglycemic or hyperglycemic effects in patients with type 2 diabetes mellitus. The present study was designed to investigate the glycemic control of male patients with diabetes mellitus from the aspect of the genetic status of alcohol metabolism. METHODS One hundred sixty-three men with type 2 diabetes mellitus were enrolled in the present study. They were all outpatients at the Diabetes Center of Saiseikai Central Hospital. The genotype of the aldehyde dehydrogenase 2 (ALDH2) gene of each patient was determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), and the patients were divided into those with active or inactive ALDH2 phenotype. We compared the amount of habitual alcohol intake and clinical data that included physical findings and blood chemistry of the patients in the active and inactive ALDH2 groups. The glycemic control of each patient was evaluated by the serum level of HbAlc. RESULTS Of the 163 patients with type 2 diabetes mellitus, 90 patients had the active ALDH2 phenotype and 73 patients had the inactive ALDH2 phenotype. The mean HbA1c level of the active ALDH2 group was nearly the same as that of the inactive ALDH2 group. However, the HbA1c level of the light-to-moderate drinkers (1-400 g/week) in the inactive ALDH2 group was highest and was significantly higher than the HbA1c level of the light-to-moderate drinkers of the active ALDH2 group. The HbA1c of the patients with diabetic complications was higher than the HbAlc of those without diabetic complications in both the active and inactive ALDH2 groups. However, the HbA1c level of the light-to-moderate drinkers without diabetic complications in the inactive ALDH2 group was significantly higher and the incidence of 24 hr urinary C-peptide was higher than the respective level of the light-to-moderate drinkers without diabetic complications in the active ALDH2 group. CONCLUSIONS Habitual light-to-moderate alcohol intake worsens glycemic control in diabetic patients who have the inactive ALDH2 phenotype. The data on 24 hr urinary C-peptide level suggested that increased acetaldehyde after light-to-moderate drinking by inactive ALDH2 diabetic patients may increase the HbA1c value by the insulin-resistant condition that resulted in hyperinsulinemia.
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Affiliation(s)
- C Murata
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo, Japan. chisato-@gd5.so-net.ne.jp
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Abstract
Structural features of fluorescent methoxycoumarins were examined from the viewpoint of substituent effect and ring structure in connection with intramolecular charge-transfer (ICT). The fluorescence of methoxycoumarins depended primarily upon the ICT from a C6-electron-donating group to the substituents at the C3-position of the coumarin ring. Furthermore, the presence of a lactone ring itself, including a carbonyl group, cyclic ether oxygen and ethylenic bond as partial ring structures, was found to be essential for fluorescing in methoxycoumarins according to the fluorescent behaviors of chemically deformed model compounds.
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Affiliation(s)
- A Takadate
- Daiichi College of Pharmaceutical Sciences, Fukuoka, Japan
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Suzuki Y, Taniyama M, Atsumi Y, Hosokawa K, Asahina T, Shimada A, Murata C, Matsuoka K. Body type in mitochondrial diabetes. Diabetologia 1997; 40:987-8. [PMID: 9267998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Suzuki Y, Taniyama M, Muramatsu T, Atsumi Y, Hosokawa K, Asahina T, Shimada A, Murata C, Matsuoka K. Diabetes mellitus associated with 3243 mitochondrial tRNA(Leu(UUR)) mutation: clinical features and coenzyme Q10 treatment. Mol Aspects Med 1997; 18 Suppl:S181-8. [PMID: 9266520 DOI: 10.1016/s0098-2997(97)00041-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Diabetes mellitus associated with mitochondrial tRNA mutation at position 3243(DM-Mt3243) is a new disease. Patients have a distinctly different picture from MELAS (mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes). During observations at the Saiseikai Central Hospital, the following findings were noted in DM-Mt3243 patients: DM-Mt3243 patients are diagnosed earlier with diabetes, compared to NIDDM (non-insulin dependent diabetes mellitus) controls without family history. DM-Mt3243 patients often need insulin more often than NIDDM controls without family history. Post-treatment neuropathy and insulin edema are often found in DM-Mt3243, and the two phenomena possibly have a similar pathophysiology related to mitochondrial dysfunction. Ambiguous psychiatric disorders of functional psychosis are observed frequently in DM-Mt3243. Mild headache is common in DM-Mt3243 cases. Ambiguous neuromuscular abnormalities such as sleep disturbance, paresthesia of the legs, edema of the legs, and palpitation may be symptoms associated with mitochondrial dysfunction in DM-Mt3243. Coenzyme Q may be effective in the relief of these neuromuscular symptoms.
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Affiliation(s)
- Y Suzuki
- Saiseikai Central Hospital, Tokyo, Japan
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Suzuki Y, Muramatsu T, Taniyama M, Atsumi Y, Suematsu M, Kawaguchi R, Higuchi S, Asahina T, Murata C, Handa M, Matsuoka K. Mitochondrial aldehyde dehydrogenase in diabetes associated with mitochondrial tRNA(Leu(UUR)) mutation at position 3243. Diabetes Care 1996; 19:1423-5. [PMID: 8941476 DOI: 10.2337/diacare.19.12.1423] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [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: 02/03/2023]
Abstract
OBJECTIVE To ascertain why alcohol is prone to manifest unpleasant effects in diabetes associated with mitochondrial tRNA(Leu(UUR) mutation at position 3243 (DM-Mt3243), we investigated the genotype of aldehyde dehydrogenase (ALDH) 2 and alcohol dehydrogenase 2 (ADH2) in DM-Mt3243. RESEARCH DESIGN AND METHODS Nineteen unrelated patients with DM-Mt3243 were included in the study (12 men and 7 women). They were recruited from approximately 700 diabetic patients at three different institutes, without prior information of alcohol habit. ALDH2, ADH2, and 3243 mutation were genotyped by polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) methods. There were 461 unrelated Japanese individuals and 170 non-3243 mutant NIDDM patients enrolled as control subjects. RESULTS In the DM-Mt3243 group, 15 (79%) patients had inactive ALDH2 and 18 (95%) had atypical ADH2. The frequency of the inactive ALDH2 genotype was higher than that in the normal control subjects (P < 0.002) and that in the NIDDM control subjects (P < 0.003). However, the frequencies of ADH2 genotype in the DM-Mt3243 group, the normal control subjects, and the NIDDM control subjects were not different. CONCLUSIONS Inactive ALDH2 genotype was frequently observed in DM-Mt3243. It suggests that DM-Mt3243 is associated with ALDH2 inactivity. We speculate the trait of acetaldehyde accumulation on ALDH2 inactivity may favor mitochondrial DNA abnormalities, thereby worsening ATP production and impairing insulin secretion. In addition, the interaction of ALDH1 and ALDH2 may alter the retinoid metabolism in the pancreas, thereby influencing insulin secretion and precipitating diabetes. Thus, this association of ALDH2 genotype with DM-Mt3243 provides insight into the etiology of diabetes in the mitochondrial diseases.
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Affiliation(s)
- Y Suzuki
- Saiseikai Central Hospital, Tokyo, Japan.
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Suzuki Y, Muramatsu T, Taniyama M, Atsumi Y, Kawaguchi R, Higuchi S, Hosokawa K, Asahina T, Murata C, Matsuoka K. Association of aldehyde dehydrogenase with inheritance of NIDDM. Diabetologia 1996; 39:1115-8. [PMID: 8877297 DOI: 10.1007/bf00400662] [Citation(s) in RCA: 23] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
To investigate the influence of the mitochondrial aldehyde dehydrogenase 2 (ALDH2) genotype on the clinical features of diabetes, 212 Japanese patients with non-insulin-dependent diabetes mellitus (NIDDM) (154 males and 58 females aged 17-83 years; mean age 58.2 years) were investigated. Genotyping of ALDH2 was performed by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. The pattern of inheritance of diabetes and various clinical parameters was compared between active and inactive ALDH2 groups. Of the 212 subjects, 120 had active ALDH2 and 92 had inactive ALDH2. The percentage of patients with a diabetic mother was higher in the inactive ALDH2 group (32.6%) than in the active ALDH2 group (19.2%) (p < 0.05). The prevalence of proliferative retinopathy was lower in the inactive ALDH2 group than in the active ALDH2 group (p < 0.05). However, other clinical parameters showed no difference. We conclude that maternal inheritance of diabetes was common in the inactive ALDH2 group. The finding is suggestive of a relationship between alcohol intolerance and inheritance of diabetes. We speculate that the interaction between mitochondrial DNA and ALDH2 inactivity causes an increase of mitochondrial DNA mutations or deletions, thereby inducing the maternal inheritance of diabetes. The relationship of the ALDH2 genotype with proliferative retinopathy is interesting, because it resembles that of chlorpropamide alcohol flushing with severe diabetic retinopathy. The interaction of aldehyde dehydrogenase isoenzymes might have an aetiological role, since aldehyde dehydrogenase 1 plays an important part in oxidation of retinal to retinoic acid. However, the number of affected patients with proliferative retinopathy was small, hence, our result should be considered as a preliminary finding.
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Affiliation(s)
- Y Suzuki
- Saiseikai Central Hospital, Tokyo, Japan
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Shinohara A, Muroyama T, Murata C, Miura T, Saito T, Yokoyama A, Kojima S, Furukawa M. Selective measurements of pion transfer processes in alcohols and carboxylic acids using deuterated compounds. Phys Rev Lett 1996; 76:2460-2463. [PMID: 10060705 DOI: 10.1103/physrevlett.76.2460] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Suh KI, Song YM, Murata C, Joyce M, Ditzler TM, Henry RR. Role of basal insulin in maintenance of intracellular glucose metabolic pathways in non-insulin-dependent diabetes mellitus. Metabolism 1995; 44:41-6. [PMID: 7854164 DOI: 10.1016/0026-0495(95)90287-2] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Impairments of both basal and insulin-stimulated oxidative (Gox) and nonoxidative (Nox) glucose metabolism are documented to exist in non-insulin-dependent diabetes mellitus (NIDDM). Although these defects have been well characterized during insulin stimulation, little is known about the effects of basal insulin or its deficiency on intracellular glucose metabolism in NIDDM. To determine the physiological significance of basal insulin in the maintenance of glucose metabolism in NIDDM, we studied nine subjects with NIDDM in the basal and insulin-deficient state produced by 3 hours of somatostatin (SRIF) infusion (0.08 pmol/kg/min). Glucose turnover rates were quantified by [3-3H]glucose turnover, and substrate oxidation was assessed by a combination of indirect calorimetry and urinary nitrogen measurements. Skeletal muscle glycogen synthase (GS) and pyruvate dehydrogenase (PDH) activities were also measured in the basal state and during SRIF infusion. Basal glucose levels were maintained during SRIF infusion by exogenous glucose infusion (12.5 +/- 0.9 mmol/L in the basal state v 12.8 +/- 0.8 during SRIF infusion, P = NS). During the last hour of SRIF infusion, plasma C-peptide levels declined by 88% from 0.73 +/- 0.11 to 0.09 +/- 0.02 nmol/L (P < .001), and serum insulin concentrations were undetectable (< 14 pmol/L). During insulinopenic conditions, rates of glucose uptake (GU) were decreased by 12% from basal level of 2.26 +/- 0.13 to 1.99 +/- 0.12 mg/kg/min (P < .05), and were entirely accounted for by reduced rates of Gox (1.01 +/- 0.10 to 0.65 +/- 0.14 mg/kg/min, P < .01).(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- K I Suh
- Department of Medicine, University of California-San Diego, La Jolla
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Suh KI, Murata C, Song YM, Joyce M, Gumbiner B, Ditzler TM, Henry RR. Intracellular glucose metabolism after long term metabolic control with glyburide: improved glucose oxidation with unchanged glycogen synthase activity. J Clin Endocrinol Metab 1993; 77:464-70. [PMID: 8345053 DOI: 10.1210/jcem.77.2.8345053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
To determine whether improved metabolic control with long term glyburide treatment alters intracellular glucose metabolism independent of effects on glucose uptake (GU), we studied eight obese patients with noninsulin-dependent diabetes mellitus before and 7 months after glyburide therapy. Indirect calorimetry and skeletal muscle biopsies were performed in the basal state and during 300 pmol/m2.min insulin infusions, with glucose turnover rates determined by [3-3H]glucose turnover. During the glucose clamps, rates of GU were matched before and after treatment using equivalent hyperinsulinemia and variable levels of hyperglycemia. After glyburide treatment, rates of GU were decreased in the basal state [4.16 +/- 0.57 vs. 3.29 +/- 0.37 mg/kg fat free mass (FFM)/min; P < 0.05], but similar during glucose clamps (11.53 +/- 1.42 vs. 11.93 +/- 1.32 mg/kg FFM.min; P = NS) according to study design. In both the basal state and during glucose clamps after glyburide therapy, rates of glucose oxidative metabolism (Gox) increased by 68-78% [1.21 +/- 0.16 vs. 2.03 +/- 0.31 mg/kg FFM.min (P < 0.05) and 3.13 +/- 0.51 vs. 5.58 +/- 0.55 mg/kg FFM.min (P < 0.05), respectively], and rates of nonoxidative glucose metabolism decreased [2.96 +/- 0.68 vs. 1.25 +/- 0.21 mg/kg FFM.min (P < 0.05) and 8.40 +/- 1.50 to 6.30 +/- 1.40 mg/kg FFM.min (P < 0.01), respectively]. Circulating plasma FFA levels and rates of fat oxidation (Fox) remained unchanged in both the basal state and during clamp studies. Skeletal muscle glycogen synthase (GS) activity, expressed as fractional velocity, was unchanged by glyburide therapy (2.2 +/- 0.8 vs. 2.7 +/- 0.3% in the basal state and 7.3 +/- 1.8 vs. 6.1 +/- 0.9% during clamps; both P = NS). In summary, at both matched (during clamp studies) and unmatched (during basal studies) rates of GU, improved metabolic control with glyburide therapy resulted in marked improvement of Gox independent of the effects on GU. The improvement in Gox was not associated with changes in Fox, circulating FFA, or muscle GS activity. These data indicate that long term metabolic control achieved by glyburide therapy markedly improves Gox, but not skeletal muscle GS activity, in noninsulin-dependent diabetes mellitus independent of GU and Fox.
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Affiliation(s)
- K I Suh
- Department of Medicine, University of California-San Diego, La Jolla 92093
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Murata C. [Approach to mothers who deliver infants with cleft lip and palate or hydrocephalus]. Josanpu Zasshi 1988; 42:47-53. [PMID: 3373778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Murata C. [Midwifery practice at a local hospital: a nursing supervisor's reflections on the past 10 years]. Josanpu Zasshi 1986; 40:965-70. [PMID: 3641964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Shimada T, Okihama Y, Murata C, Shukuya R. Occurrence of H1o-like protein and protein A24 in the chromatin of bullfrog erythrocytes lacking histone 5. J Biol Chem 1981; 256:10577-82. [PMID: 6974731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Electrophoretic analysis of acid-soluble chromosomal protein isolated from the erythrocytes of the bullfrog Rana catesbeiana reveals that the nucleated erythrocytes contain five major histones (H1A, H2A, H2B, H3, and H4) and three minor histone-like proteins (H1B, R1, and R2). Histone 5, found as an additional major histone of avian erythrocytes, is not detected in the frog erythrocytes. Three minor components of the bullfrog erythrocytes, which are not present in the avian erythrocytes, have been purified to electrophoretic homogeneity and characterized by amino acid analysis, NH2-terminal analysis, tryptic peptide mapping, and immunological techniques. H1B extracted with 5% HClO4 along with H1A has a very similar amino acid composition and tryptic peptide map to H1o, a subfraction of lysine-rich histones found in nondividing mammalian cells. Microcomplement fixation also shows that H1B and bovine liver H1o share some common antigenic determinants. R1, a basic protein having a ratio of basic/acidic amino acids of 2.0 and 20 mol % lysine, is distinguished from any chromosomal proteins characterized so far on the basis of electrophoretic mobility and amino acid composition. On the other hand, R2 is identified as protein A24 on the basis of its electrophoretic mobility, amino acid composition, and tryptic peptide map. Since H1o and protein A24 are considered to be involved in the inhibition of DNA replication and RNA synthesis, respectively, H1o-like protein and protein A24 in the frog erythrocyte lacking H5 may have central roles in genetic inactivation during erythrocyte maturation.
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Nakai T, Mori Y, Saotome I, Yamamoto A, Murata C. [Effect of storage of the untreated whole blood and methods of prevention of its deterioration]. Rinsho Byori 1974; 22:362. [PMID: 4475947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Murata C. [Nursing of a patient with pulmonary tuberculosis]. Kango Kyoshitsu 1972; 16:62-4. [PMID: 4483920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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