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Central body fat distribution indices in Thai preschool children

Open Journal of Pediatrics 2012年第1期2卷 47-52页

作者： Uruwan Yamborisut naoko sakamoto Piyanuch Visetchart Kraisid Tontisirin Human Nutrition Division Institute of Nutrition Mahidol University Nakhon Pathom Thailand National Research Institute for Child Health and Development Tokyo Japan Senior Nutrition Consultant Institute of Nutrition Mahidol University Nakhon Pathom Thailand

Background: Central obesity is associated with adverse health outcomes. This study aimed to determine the characteristics of central body fat distribution in Thai preschool children and to examine factors that could influence on body fat distribution of children. Methods: The total 811, 5 - 6 years old children were randomly sampled from 9 primary schools in Saraburi province. Body weight and height were measured in each child. Waist circumference (WC) was measured at the umbilicus level and hip circum-ference (HC) at the level yielding maximum circumference over buttock. Subcutaneous skinfold was measured on biceps, triceps, subscapular, suprailiac and abdominal regions. Total body fat (TBF) was measured with bioelectrical impedance analyzer. Results: Mean values of WC, waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR) of boys were not different from those of girls. Even though trunk skinfolds of both genders were similar, girls tended to have slightly greater biceps, triceps and subscapular skinfolds than boys. Strongly positive correlation was found between WC, WHtR, trunk skinfold and child’s BMI (p = 0.01) as well as between WC, WHtR, trunk skinfold and child’s TBF (p = 0.01). Multiple regression analysis demonstrated, in both genders, that BMI, age and TBF were strongly associated with WC (Adjusted R2 0.92 - 0.93) and WHtR (Adjusted R2 0.90 - 0.92) and that BMI and TBF were strongly associated with trunk skinfold (Adjusted R2 0.88 - 0.89). The association between WHR and TBF for boys and between WHR and BMI for girls were found to be weak in this study. Conclusion: No gender difference in body fat distribution indices was found in Thai preschool children. Change in central body fat distribution of children could be strongly influenced by their changes in age, BMI and TBF.

关键词： Central Body Fat Distribution Thai Preschool Children Waist Circumference Subcutaneous Skinfold

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Is there diversity among UGT1A1 polymorphism in Japan?

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World Journal of Gastrointestinal Oncology 2012年第7期4卷 170-175页

作者： Michiya Kobayashi Shoichi Hazama Kenichi Takahashi Koji Oba naoko Okayama Mitsuaki Nishioka Yuji Hinoda Masaaki Oka Ken Okamoto Hiromichi Maeda Daisuke Nakamura Junichi sakamoto Hideyuki Mishima Department of Human Health and Medical Sciences Kochi Medical School Nankoku 783-8505 Japan Department of Digestive Surgery and Surgical Oncology (Surgery Ⅱ) Yamaguchi University Graduate School of Medicine Ube Yamaguchi 755-8505 Japan Department of Surgery Aomori Prefectural Central Hospital Aomori 030-8553 Japan Translational Research and Clinical Trial Center Hok-kaido University Hospital Sapporo 060-8638 Japan Division of Laboratory Yamaguchi University Hospital Ube Yamaguchi 755-8505 Japan Department of Oncology and Laboratory Medicine Yamaguchi University Graduate School of Medicine Ube Yama-guchi 755-8505 Japan Tokai University School of Medicine Is-ehara Kanagawa 259-1131 Japan Young Leaders Program in Healthcare Administration Nagoya University Graduate School of Medicine Nagoya 466-8550 Japan Department of Surgery Osaka National Hos-pital Osaka 565-0871 Japan

AIM: To investigate into the diversity of UGT1A1 polymorphism across three different districts in Japan and highlight genetic differences among the population in Japan. METHODS: We enrolled 50 healthy volunteers from each of the Yamaguchi (western part of Japan), Kochi(southern part of Japan) and Akita (northern part of Japan) prefectures. Blood samples (7 mL) were collected from each participant and stored in EDTA for subsequent genotyping by fragment size analysis, direct sequencing and TaqMan assay of UGT1A1*28, UGT1A7*3/UGT1A9*22 and UGT1A1*93/UGT1A1*6/ UGT1A1*27/UGT1A1*60/UGT1A7 (-57), respectively. RESULTS: The only statistically significant differences in allele polymorphisms among the group examined were for UGT1A1*6. The Akita population showed more UGT1A1*6 heterozygosity (P = 0.0496). CONCLUSION: Our study revealed no regional diversity among UGT1A1, UGT1A7 or UGT1A9 polymorphisms in Japan.

关键词： UGT1A1 gene Polymorphism Diversity

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NAT2＊6A, a haplotype of the N-acetyltransferase 2 gene, is an important biomarker for risk of anti-tuberculosis drug-induced hepatotoxicity in Japanese patients with tuberculosis

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World Journal of Gastroenterology 2007年第45期13卷 6003-6008页

作者： Norihide Higuchi naoko Tahara Katsunori Yanagihara Kiyoyasu Fukushima Naofumi Suyama Yuichi Inoue Yoshitsugu Miyazaki Tsutomu Kobayashi Koh-ichiro Yoshiura Norio Niikawa, Chun-Yang Wen, Hajime Isomoto,Saburou Shikuwa, Katsuhisa Omagari, Yohei Mizuta, Shigeru Kohno, Kazuhiro Tsukamoto Norio Niikawa Chun-Yang Wen Hajime Isomoto Saburou Shikuwa Katsuhisa Omagari Yohei Mizuta Shigeru Kohno Kazuhiro Tsukamoto Department of Pharmacotherapeutics Nagasaki University Graduate School of Biomedical Sciences 1-14 Bunkyo-machi Nagasaki 852-8521 Japan Department of Internal Medicine Nagasaki University Graduate School of Biomedical Sciences Sakamoto 1-7-1 Nagasaki 852-8501 Japan Division of Internal Medicine Japanese Red Cross Nagasaki Genbaku Isahaya Hospital Isahaya 859-0497 Japan Department of Internal Medicine Nagasaki Municipal Medical Center Nagasaki 852-8012 Japan Y Department of Internal Medicine Isahaya Health Insurance General Hospital Isahaya 854-8501 Japan Department of Human Genetics Nagasaki University Graduate School of Biomedical Sciences Sakamoto 1-12-4 Nagasaki 852-8523 Japan SORST JST Kawaguchi Japan Department of Digestive Disease Center Beihua University Jilin 132013 Jilin Province China

AIM: To investigate an association between N -acetyltransferase 2 (NAT2 )-haplotypes/diplotypes and adverse effects in Japanese pulmonary tuberculosis patients. METHODS: We studied 100 patients with pulmonary TB treated with anti-TB drugs including INH. The frequencies and distributions of single nucleotide polymorphisms, haplotypes, and diplotypes of NAT2 were determined by the PCR-restriction fragment length polymorphism method, and the results were compared between TB patients with and without adverse effect, using multivariate logistic regression ***: Statistical analysis revealed that the frequency of a variant haplotype, NAT2*6A , was signifi cantly increased in TB patients with hepatotoxicity, compared with those without hepatotoxicity [P = 0.001, odds ratio (OR) = 3.535]. By contrast, the frequency of a wild-type (major) haplotype, "NAT2*4", was signif icantly lower in TB patients with hepatotoxicity than those without hepatotoxicity (P < 0.001, OR = 0.265). There was no association between NAT2-haplotypes and skin rash or eosinophilia. CONCLUSION: The present study shows that NAT2 is one of the determinants of anti-TB drug-induced hepatotoxicity. Moreover, the haplotypes, NAT2*4 and NAT2*6A, are useful new biomarkers for predicting anti- TB drug-induced hepatotoxicity.

关键词： Tuberculosis Anti-tuberculosis drugs Drug-induced hepatotoxicity NAT2-haplotype DNA-baseddiagnosis

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水分胁迫条件下臭柏匍匐茎的蒸腾和吸水特性

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林业科学 2009年第9期45卷 48-52页

作者：李玉灵王玉魁王俊刚三木直子坂本圭児吉川賢河北农业大学林学院保定071000 国家林业局泡桐研究开发中心郑州450003 北京林业大学水土保持学院北京100083 日本冈山大学大学院环境学研究科冈山7008530

在臭柏长期室内石砾土栽培条件下,通过培养液中加入PEG以调节溶液渗透势,设置对照区(pF值3.0)、水分胁迫区(pF值2.3)2种处理,并分别从匍匐茎中部人工培养不定根,测定有不定根和无不定根匍匐茎小枝的蒸腾速率、气孔导度及其水势的日变化... 详细信息

在臭柏长期室内石砾土栽培条件下,通过培养液中加入PEG以调节溶液渗透势,设置对照区(pF值3.0)、水分胁迫区(pF值2.3)2种处理,并分别从匍匐茎中部人工培养不定根,测定有不定根和无不定根匍匐茎小枝的蒸腾速率、气孔导度及其水势的日变化和叶片水分特性。结果表明:1)在水分胁迫条件下,匍匐茎先端小枝通过降低正午水势提高吸水能力;基部小枝通过控制蒸腾,维持枝条水势防止失水。2)有不定根的匍匐茎通过降低质壁分离时的水势(ψtwlp)和充分吸水时的渗透势(ψssat)提高吸水能力,而且增加细胞弹性率,迅速降低膨压保证失水时能尽快关闭气孔;而无不定根匍匐茎虽然吸水能力较差,但细胞壁柔软,即使蒸腾失水,也能在较长时间内维持膨压,保证生命活动进行。

关键词：水分胁迫臭柏匍匐茎不定根水势

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