A Novel Mouse Model for Type 2 Diabetes and Non-alcoholic Fatty Liver Disease: Spontaneous Amelioration of Diabetes by Augmented Beta Cell Mass
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- OZE-FUKAI Aya
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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- FUJISAWA Tomomi
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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- SUGIMOTO Ken
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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- NOJIMA Koji
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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- SHINDO Nobuyasu
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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- SHIMOYOSHI Satomi
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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- YOSHIKAWA Yuki
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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- SATO Yoshifumi
- Department of Metabolic Medicine, Osaka University Graduate School of Medicine
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- SHIMOMURA Iichirou
- Department of Metabolic Medicine, Osaka University Graduate School of Medicine
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- IKEGAMI Hiroshi
- Department of Endocrinology, Metabolism and Diabetes, Kinki University School of Medicine
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- RAKUGI Hiromi
- Department of Geriatric Medicine, Osaka University Graduate School of Medicine
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Abstract
Given the potential for β-cells to increase their mass, glucose intolerance might be ameliorated by a compensatory increase in β-cell mass. However, it remains uncertain whether such amelioration is feasible in vivo. In this study, we investigated glucose tolerance, islet morphology, and islet gene expression of Fatty Liver Shionogi (FLS) mice, a model for non-alcoholic fatty liver disease (NAFLD). Relative to control mice, FLS mice showed an age-dependent increase in glucose intolerance up to the age of 24 weeks, leading to the development of diabetes. After this time, glucose tolerance ameliorated spontaneously and diabetes resolved by 48 week of age, associated with marked hyperinsulinemia. Islets of the FLS mice demonstrated a marked increase in β-cell mass with an increase in β-cell numbers. Islet gene expression analysis in FLS mice demonstrated no changes in gene expression of glucokinase or insulin receptor substrate 2. These data demonstrated that the 24-week-old FLS mouse is a model for type 2 diabetes with NAFLD and that the 48-week-old FLS mouse exhibits spontaneous amelioration of type 2 diabetes associated with augmented β-cell number/mass.<br>
Journal
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- Endocrine Journal
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Endocrine Journal 56 (2), 227-234, 2009
The Japan Endocrine Society
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Details 詳細情報について
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- CRID
- 1390001206299731584
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- NII Article ID
- 10026913000
- 130004443482
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- NII Book ID
- AA10901436
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- ISSN
- 13484540
- 09188959
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed