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Sezai I, Murata C, Goto H, Yagawa C. A review of the effectiveness of motivational interviewing interventions (MI) in the field of occupational health. Saf Health Work 2022. [DOI: 10.1016/j.shaw.2021.12.1098] [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: 11/29/2022] Open
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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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Sano H, Shimada A, Tabuchi K, Taki T, Murata C, Park MJ, Ohki K, Sotomatsu M, Adachi S, Tawa A, Kobayashi R, Horibe K, Tsuchida M, Hanada R, Tsukimoto I, Hayashi Y. WT1 mutation in pediatric patients with acute myeloid leukemia: a report from the Japanese Childhood AML Cooperative Study Group. Int J Hematol 2013; 98:437-45. [PMID: 23979985 DOI: 10.1007/s12185-013-1409-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 07/29/2013] [Accepted: 08/06/2013] [Indexed: 01/18/2023]
Abstract
Mutations in Wilms tumor 1 (WT1) have been reported in 10-22 % of patients with cytogenetically normal acute myeloid leukemia (CN-AML), but the prognostic implications of these abnormalities have not been clarified in either adults or children. One hundred and fifty-seven pediatric AML patients were analyzed for WT1 mutations around hotspots at exons 7 and 9; however, amplification of the WT1 gene by the reverse transcriptase-polymerase chain reaction was not completed in four cases (2.5 %). Of the 153 evaluable patients, 10 patients (6.5 %) had a mutation in WT1. The incidence of WT1 mutations was significantly higher in CN-AML than in others (15.2 vs. 4.5 %, respectively, P = 0.03). Of the 10 WT1-mutated cases, eight (80 %) had mutations in other genes, including FLT3-ITD in two cases, FLT3-D835 mutation in two, KIT mutation in three, MLL-PTD in three, NRAS mutation in one, and KRAS mutation in two (in some cases, more than one additional gene was mutated). The incidences of KIT and FLT3-D835 mutations were significantly higher in patients with than in those without WT1 mutation. No significant differences were observed in the 3-year overall survival and disease-free survival; however, the presence of WT1 mutation was related to a poor prognosis in patients with CN-AML, excluding those with FLT3-ITD and those younger than 3 years.
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Affiliation(s)
- Hirozumi Sano
- Department of Hematology/Oncology, Gunma Children's Medical Center, 779 Shimohakoda, Hokkitsu, Shibukawa, Gunma, 377-8577, Japan
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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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Sano H, Shimada A, Taki T, Murata C, Park MJ, Sotomatsu M, Tabuchi K, Tawa A, Kobayashi R, Horibe K, Tsuchida M, Hanada R, Tsukimoto I, Hayashi Y. RAS mutations are frequent in FAB type M4 and M5 of acute myeloid leukemia, and related to late relapse: a study of the Japanese Childhood AML Cooperative Study Group. Int J Hematol 2012; 95:509-15. [PMID: 22407852 DOI: 10.1007/s12185-012-1033-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 02/23/2012] [Accepted: 02/23/2012] [Indexed: 01/02/2023]
Abstract
Mutations in RAS are frequent in acute myeloid leukemia (AML), and are thought to contribute to leukemogenesis in a subset of patients; however, their prognostic significance has not been firmly established. One hundred and fifty-seven pediatric patients with AML were analyzed for NRAS and KRAS mutations around hot spots at codons 12, 13, and 61. Twenty-nine patients (18.5%) had an activating mutation of RAS. We found KRAS mutations to be more frequent than NRAS mutations (18/29, 62.1% of patients with RAS mutation), in contrast to previous reports (18-40%). The frequency of RAS mutation was higher in French-American-British types M4 and M5 than other types (P = 0.02). There were no significant differences in other clinical manifestations or distribution in cytogenetic subgroups, or aberrations of other genes, including KIT mutation, FLT3-ITD, and MLL-PTD, between patients with and without RAS mutations. No significant differences were observed in the 3-year overall survival and disease-free survival; however, the presence of RAS mutation was related to late relapse. The occurrence of clinical events at relatively late period should be monitored for in AML patients with mutations in RAS.
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Affiliation(s)
- Hirozumi Sano
- Department of Hematology/Oncology, Gunma Children's Medical Center, 779 Shimohakoda, Hokkitsu, Shibukawa, Gunma, 377-8577, Japan
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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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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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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 2006. [DOI: 10.1111/j.1530-0277.2000.tb00003.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Chisato Murata
- Department of Internal Medicine; Saiseikai Central Hospital; Tokyo Japan
| | - Yoshihiko Suzuki
- Department of Internal Medicine; Saiseikai Central Hospital; Tokyo Japan
| | - Taro Muramatsu
- Department of Psychiatry; Keio University School of Medicine; Tokyo Japan
| | - Matsuo Taniyama
- Department of Internal Medicine; Showa University School of Medicine; Tokyo Japan
| | - Yoshihito Atsumi
- Department of Internal Medicine; Saiseikai Central Hospital; Tokyo Japan
| | - Kempei Matsuoka
- Department of Internal Medicine; Saiseikai Central Hospital; Tokyo Japan
| | - Tetsu Watanabe
- Department of Community Health; Tokai University School of Medicine; Kanagawa Japan
| | - Isao Okazaki
- Department of Community Health; Tokai University School of Medicine; Kanagawa 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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Ito M, Miyagishi M, Murata C, Kawasaki H, Baba T, Tachi C, Taira K. Down-Regulation of Endogenous Wt1 Expression by Sry Transgene in the Murine Embryonic Mesonephros-Derived M15 Cell Line. J Reprod Dev 2006; 52:415-27. [PMID: 16571910 DOI: 10.1262/jrd.17094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Wt1 is one of numerous candidate genes comprising the hypothetical chain of gene expression essential for male sex differentiation of the bipotential indifferent gonads during embryogenesis. However, the evidence in the literature is ambivalent regarding the position of Wt1 relative to Sry in this scheme; Wt1 might act either upstream or downstream of Sry. In the present study, the effects of Sry expression upon Wt1 were investigated using M15 cells (XX karyotype), which are derived from murine embryonic mesonephros and express endogenous Wt1. In 3 stably-transformed Sry-expressing M15 cell lines, we showed that the expression levels of the mRNAs coding for all 4 isoforms of the WT1 proteins were down-regulated. Similarly, Wnt 4 expression was down-regulated in these cell lines. Silencing of Sry in the transformed cell lines using ribozymes or short hairpin RNAs (shRNAs) resulted in elevated levels of Wt1 and Wnt4 expression. These results strongly indicate that Wt1 might be under the control of Sry during gonadal differentiation in the mouse. In electrophoretic mobility shift assays (EMSA), we demonstrated that the 3.7 kb 5'-upstream DNA stretch of Wt1 containing potential Sry binding sites was capable of forming molecular complexes with nuclear protein(s) from Sry expressing cells but not with those from control non-Sry expressing cells. In summary, our present results support the notion that Wt1 is located downstream of Sry and down-regulated by the sex determining gene. Although the precise biological meaning of the present findings have yet to be clarified, it is possible that Wt1 plays a dual role during gonadal differentiation, i. e., turning on Sry expression on one hand, and being down-regulated by its product, Sry, on the other, possibly forming a type of negative feed-back mechanism. Further work is needed to substantiate this view.
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Affiliation(s)
- Masanori Ito
- Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan
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18
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Nakamura K, Murata C, Ito M, Iwamori T, Nishimura S, Hisamatsu S, Sonoki S, Nakayama A, Suyama E, Kawasaki H, Taira K, Nishino K, Tachi C. Design of Hammerhead Ribozymes that Cleave Murine Sry mRNA In Vitro and In Vivo. J Reprod Dev 2006; 52:73-80. [PMID: 16293944 DOI: 10.1262/jrd.17060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
As the first step in investigating the possiblity of applying ribozyme technology to artificial control of the sex ratios at birth in farm animals, where the demand for females exceeds that for males, we designed a hammerhead ribozyme (HHRz) and 2 tRNA(val)-hammerhead ribozyme complexes (tRNARz3 and tRNARz4), and examined their effects upon murine Sry mRNA in vitro and in cells. We demonstrated that HHRz and tRNARz3 could effectively cleave the target Sry mRNA in vitro. For the purpose of experiments in vivo, HHRz was cloned into the highly efficient pUC-CAGGS mammalian expression vector (pCAG/HHRz), and the tRNA ribozyme complexes were cloned into the pol III promoter-driven pPUR-KE vector (pPUR/tRNARz3 and pPUR/tRNARz4); the ribozyme vectors were co-transfected with the target vector (pCAG/Sry). A suppressive action (up to approx. 60%) was confirmed for pCAG/HHRz and pPUR/tRNARz3 upon the transiently expressed exogenously introduced Sry in M15 cultured cells.
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Affiliation(s)
- Kaori Nakamura
- Laboratory of Develomental and Reproductive Biotechnology, Department of Animal Resource Sciences, School of Veterinary Medicine and Life Sciences, Azabu University, Sagamihara, Japan
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Watanabe T, Murata C, Watanabe Y. Metabolic syndrome from the view point of public health: with special reference to nonalcoholic fatty liver disease. Nihon Koshu Eisei Zasshi 2005; 52:934-42. [PMID: 16408478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Changes in human behavior and lifestyle over the last century have resulted in a dramatic increase in the incidence of obesity, type 2 diabetes, and the metabolic syndrome. Differences in the reported overall prevalence of the metabolic syndrome, which is generally in the range of 10-30% depend on the diagnostic criteria and subjects of the study. Recently, Japanese criteria for diagnosis of the metabolic syndrome were defined. With these criteria, presence of visceral obesity is essential for the diagnosis and is simply determined by measurement of waist circumference. Reflecting a dramatic increase in the incidence of obesity and type 2 diabetes, the incidence of the metabolic syndrome is increasing in Japan as well as in Western countries, regardless of the criteria applied. Recently, the number of workers with elevated liver enzymes, in whom virus hepatitis, alcoholic liver disease, drug induced hepatitis, autoimmune hepatitis, and iron overload were ruled out as causal agents, has also be found to be increasing at workplace health checkups. Most of such workers have components of the metabolic syndrome and the presence of steatosis in the liver, this pathologic condition now being termed nonalcoholic fatty liver disease (NAFLD). In this review, we describe the relationship between NAFLD and the metabolic syndrome.
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Affiliation(s)
- Tetsu Watanabe
- Department of Community Health, Tokai University School of Medicine, Kanagawa, Japan.
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Ishikawa N, Murata C, Mikurube H, Ito S, Higashiyama R, Komaki Y, Atsumi Y, Matsuoka K, Watanabe T. Change of components of the metabolic syndrome in a workers' health checkup after five years--relation with elevated liver enzymes, gene polymorphisms for ALDH 2, beta3-AR and lifestyle. Nihon Koshu Eisei Zasshi 2005; 52:979-86. [PMID: 16408483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We previously reported that the prevalence of elevated alanine aminotransferase (ALT) increases with accumulation of metabolic syndrome components, and a greater degree of involvement of aldehyde dehydrogenase 2 (ALDH2) than beta3-adrenergic receptor gene (beta3-AR) polymorphisms. The present study was designed to clarify the effect of aging, lifestyle and the two gene polymorphisms on the relationship between 4 components of the metabolic syndrome (obesity, hypertension, dyslipidemia and impaired glucose tolerance) and elevated ALT values in a subset of 73 out of 148 male workers who were 35 years of age in the baseline study and 40 years old in the present study. Study subjects completed questionnaires about drinking and smoking habits, and underwent urinalysis, physical examination and peripheral blood tests, blood chemistry, electrocardiogram and chest X-rays each year as required by Japanese law. Information from the questionnaires and physical examinations, including liver function tests, were compared with previously reported ALDH2 and beta3-AR genotypes for the 73 workers. Of the 73 workers studied, 14 (19%) demonstrated decrease in metabolic syndrome components, 39 (53%) demonstrated no change, and 20 (27%) demonstrated an increase. Ten workers (14%) showed liver dysfunction at age 35 and 20 workers (27%) at age 40. Fourteen workers were newly diagnosed as having liver dysfunction at their 40-year checkup, thus being associated with the BMI and an active ALDH2 genotype. Accumulation of components of the metabolic syndrome were associated with the presence of liver dysfunction at 35 years. In conclusion, these findings indicate that ALDH2 genotyping as well as lifestyle habits may be important factors in causing metabolic syndrome with liver dysfunction.
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Affiliation(s)
- Noriko Ishikawa
- Department of Community Health, Tokai University School of Medicine, Kanagawa, Japan
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21
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Mikurube H, Kaneko M, Murata C, Komaki Y, Ishikawa N, Higashiyama R, Fukasawa K, Watanabe T. Association of change in the type of job with prevalence of components of the metabolic syndrome-special reference to job stress. Nihon Koshu Eisei Zasshi 2005; 52:987-93. [PMID: 16408484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
OBJECTIVE It is well established that job stress is a leading cause of cardiovascular disease. The relationship with the metabolic syndrome, however, has received only limited attention. The present study was designed to investigate associations between change of the type of job and the prevalence of metabolic syndrome components from the aspect of on-the-job stress and alteration in life style. METHODS Thirty-six male workers of the manufacturing department were transferred to the carsales department at the same automobile company in 1992 to 1993. These same workers were transferred back to the manufacturing department after two years. We compared the first health-check data before the transfer in 1992 (Term A), a second set of data two years after transfer in 1994-95 (Term B) and a third set of data two years following transfer back to the manufacturing department in 1996-1998 (Term C). The workers were requested to provide information about drinking and smoking habits, and answer Karasek's questionnaire and a simple stress questionnaire in order to clarify the possibility of job stress in occurrence of the metabolic syndrome, defined in terms of obesity, hypertension, dyslipidemia, and impaired glucose tolerance as components. RESULTS Five workers had two or more components of the metabolic syndrome before the transfer to the car-sales department (Group I). One demonstrated improvement, three no change, and one increase in symptoms from A to B. Seven workers had more than two components after the transfer to car-sales department (Group II), and six of them exhibited decrease two years following transfer back to the manufacturing department. Five of them also showed elevated liver enzymes in serum with the appearance of the components, and three of them demonstrated recover. Three workers had two components of the metabolic syndrome only at time point C (Group III), while the remaining 21 workers had 0 to one component throughout the observation period (Group IV). Amount of drinking and smoking increased significantly when working in the sales department but these items returned to the previous values after rejoining manufacturing, though differences were not observed between workers with (Group II) and without (Group IV) components of the metabolic syndrome. Body mass index (BMI) and alanine aminotransferase (ALT) increased significantly when workers moved to the sales department and that was significant in Group II as compared to Group IV. Three components of Karasek's JCQ changed significantly during job transfer, though differences were not observed between the workers with (Group II) and without (Group IV) components of the metabolic syndrome. Logistic regression analysis with age, lifestyle, Karasek's JCQ, and ALT revealed that elevation of ALT value was associated with having two or more components of metabolic syndrome, while hours of sleep demonstrated an inverse association. CONCLUSION Elevated ALT and reduction of sleep hours may be associated with development of the metabolic syndrome in workers who change their type of job.
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Affiliation(s)
- Hajime Mikurube
- Department of Community Health, Tokai University School of Medicine, Isehara City, Kanagawa Prefecture 259-1193, 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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23
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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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Momiyama Y, Furutani M, Suzuki Y, Ohmori R, Imamura SI, Mokubo A, Asahina T, Murata C, Kato K, Anazawa S, Hosokawa K, Atsumi Y, Matsuoka K, Kimura M, Kasanuki H, Ohsuzu F, Matsuoka R. A mitochondrial DNA variant associated with left ventricular hypertrophy in diabetes. Biochem Biophys Res Commun 2004; 312:858-64. [PMID: 14680844 DOI: 10.1016/j.bbrc.2003.10.195] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Received: 10/20/2003] [Indexed: 11/28/2022]
Abstract
Diabetes was reported to be associated with a mitochondrial (mt) DNA mutation at 3243 and variants at 1310, 1438, 3290, 3316, 3394, 12,026, 15,927, and 16,189. Among these mtDNA abnormalities, those at 3243, 3316, 15,927, and 16,189 were also suggested to cause cardiomyopathies. We investigated the prevalence of such mtDNA abnormalities in 68 diabetic patients with LV hypertrophy (LVH), 100 without LVH, and 100 controls. Among the 9 mtDNA abnormalities, those at 3243, 3316, and 15,927 tended to be more prevalent in diabetic patients with LVH than in those without LVH (1%, 1%, and 4% vs. 0%, 0%, and 0%). Notably, the variant at 16,189 was more prevalent in diabetic patients with LVH than without LVH (46% vs. 24%, [Formula: see text] ). The odds ratio for LVH was 3.0 (95% CI, 1.5-6.1) for the 16,189 variant. A common mtDNA variant at 16,189 was found to be associated with LVH in diabetic patients.
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Affiliation(s)
- Yukihiko Momiyama
- The Heart Institute of Japan, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, 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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Murata C, Watanabe T, Furuya H, Sugioka Y, Mikurube H, Yokoyama A, Atsumi Y, Matsuoka K, Okazaki I. Aldehyde dehydrogenase 2 and beta3-adrenergic receptor gene polymorphisms: their association with elevated liver enzymes and metabolic syndrome. Metabolism 2003; 52:1096-101. [PMID: 14506613 DOI: 10.1016/s0026-0495(03)00183-5] [Citation(s) in RCA: 16] [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: 01/08/2023]
Abstract
Recent studies indicate that some patients with nonalcoholic fatty liver have ongoing liver injury that may progress from steatosis to steatohepatitis or fibrosis. The present study was designed to clarify the clinical features of liver dysfunction observed in the course of workplace physical check-ups in relation to multiple risk factor syndrome including obesity, hyperlipidemia, hypertension, and impaired glucose tolerance, and to clarify the involvement of aldehyde dehydrogenase 2 (ALDH2) and beta(3)-adrenergic receptor (beta3-AR) gene polymorphisms in elevation of liver enzymes. One hundred forty-eight male workers 35 years of age were enrolled. They were requested to answer questionnaires about drinking and smoking habits, and underwent urinalysis, physical and peripheral blood examinations, blood chemistry, electrocardiogram and chest x-rays. The genotypes of ALDH2 and beta3-AR were analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The subjects were divided into active ALDH2 or inactive ALDH2 groups. They were also divided into 2 groups according to the beta3-AR genotype. The relationships between ALDH2 and beta3-AR gene polymorphism and the results of the physical examination including liver function tests were analyzed. The subjects were also divided according to the number of components of metabolic syndrome. The prevalence of elevated alanine aminotransferase (ALT) level increased with the accumulation of components of metabolic syndrome. Active ALDH2 was associated with elevated ALT level to a greater degree than beta3-AR polymorphism. Among those with normal body mass index (BMI), the genotypes of ALDH2 and beta3-AR were strongly associated with elevated ALT level. Logistic regression analysis revealed that BMI, triglyceride level, and ALDH2 genotype were associated with ALT elevation. In conclusion, evaluating the genotype of ALDH2 and beta3-AR may assist in predicting and preventing the development of fatty liver which may be related to multiple risk factor syndrome.
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Affiliation(s)
- Chisato Murata
- Department of Community Health, Tokai University School of Medicine, Kanagawa, 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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Suzuki Y, Taniyama M, Muramatsu T, Ohta S, Murata C, Atsumi Y, Matsuoka K. Mitochondrial tRNA(Leu(UUR)) mutation at position 3243 and symptomatic polyneuropathy in type 2 diabetes. Diabetes Care 2003; 26:1315-6. [PMID: 12663619 DOI: 10.2337/diacare.26.4.1315] [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: 02/03/2023]
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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, Matsuoka K. [Diet therapy and physical exercise for diabetes]. Nihon Rinsho 2002; 60 Suppl 9:199-206. [PMID: 12386993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- Chisato Murata
- Department of Internal Medicine, Saiseikai Central Hospital, Tokyo
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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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