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The different associations of serum gamma-glutamyl transferase and alanine aminotransferase with insulin secretion, β-cell function, and insulin resistance in non-obese Japanese

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机构: [1]Research Institute for Nutrition Sciences, Mukogawa Women’s University, 6‑46, Ikebiraki‑Cho, Nishinomiya, Hyogo 663‑8558, Japan. [2]Laboratory of Community Health and Nutrition, Department of Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama, Ehime, Japan. [3]Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan. [4]Department of Nutrition, Osaka City Juso Hospital, Osaka, Japan. [5]Open Research Center for Studying of Lifestyle‑Related Diseases, Mukogawa Women’s University, Nishinomiya, Hyogo, Japan. [6]Department of Health, Sports, and Nutrition, Faculty of Health and Welfare, Kobe Women’s University, Kobe, Hyogo, Japan. [7]Department of Advanced Epidemiology, Noncommunicable Disease (NCD) Epidemiology Research Center, Shiga University of Medical Science, Otsu, Shiga, Japan. [8]Department of Food Sciences and Nutrition, Mukogawa Women’s University, Nishinomiya, Hyogo, Japan. [9]Department of Endocrinology, First Afliated Hospital of Kunming Medical University, Kunming, Yunnan, China. [10]Department of Medicine, Kohan Kakogawa Hospital, Kakogawa, Hyogo, Japan
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关键词: Gamma-glutamyl transferase ALT/AST glucose-stimulated insulin secretion Insulin resistance β-cell function Japanese people

摘要:
The present study investigated the associations of serum gamma-glutamyl transferase (GGT), a marker of fatty liver and oxidative stress, and ALT/AST, a marker of fatty liver, with percentage trunk fat and postload glucose, insulin resistance, and β-cell function in middle-aged Japanese individuals, whose BMI averaged < 23.0 kg/m2. Pancreatic β-cell function was assessed using the disposition index calculated by a product of the insulinogenic index (IGI) and Matsuda insulin sensitivity index, a biomarker of early-phase glucose-stimulated insulin secretion and whole-body insulin sensitivity, respectively. Multivariate linear regression analyses revealed that the disposition index was associated inversely with GGT independently of percentage trunk fat, homeostasis model assessment insulin resistance (HOMA-IR), a marker of insulin resistance, and Matsuda index. When IGI was included instead of the disposition index, IGI (inversely) and HOMA-IR were associated with GGT independently of percentage trunk fat and Matsuda index. When the area under the glucose concentration curve (AUCg) during an oral glucose tolerance test was included instead of the disposition index, AUCg and HOMA-IR emerged as independent determinants of GGT. ALT/AST was associated with HOMA-IR alone. Results suggest a different pathophysiologic basis between GGT and ALT/AST in predicting diabetic risk in non-obese Japanese.© 2024. The Author(s).

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大类 | 2 区 综合性期刊
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第一作者:
第一作者机构: [1]Research Institute for Nutrition Sciences, Mukogawa Women’s University, 6‑46, Ikebiraki‑Cho, Nishinomiya, Hyogo 663‑8558, Japan. [2]Laboratory of Community Health and Nutrition, Department of Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama, Ehime, Japan. [3]Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan.
通讯作者:
通讯机构: [1]Research Institute for Nutrition Sciences, Mukogawa Women’s University, 6‑46, Ikebiraki‑Cho, Nishinomiya, Hyogo 663‑8558, Japan. [5]Open Research Center for Studying of Lifestyle‑Related Diseases, Mukogawa Women’s University, Nishinomiya, Hyogo, Japan. [10]Department of Medicine, Kohan Kakogawa Hospital, Kakogawa, Hyogo, Japan
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