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Hyae Gyeong Cheon  (Cheon HG) 2 Articles
Effects of Food Restriction on Phenotypes of TALLYHO/JngJ Mouse.
Won Hoon Jung, Hee Youn Kim, Seung Jin Koo, Hyae Gyeong Cheon, Sung Whan Cho, Sang Dal Rhee
Korean Diabetes J. 2008;32(4):304-316.   Published online August 1, 2008
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AbstractAbstract PDF
Food restriction has been reported to ameliorate diabetes and obesity. In this study, we examined the effects of the food restriction on phenotypes of TALLYHO/JngJ (TH) mouse, a recently developed diabetic model animal. METHODS: 3 week-old TH mice were divided into 2 groups (n = 20 each for food-restricted (THR) and free-fed (THF)) and THR mice were fed the same amount of food as normal control mice (C57BL/6, n = 20). Body weight was weekly monitored till 14 weeks of age. The half of animals were sacrificed at 8 weeks of age, and liver, kidney, and fat weight were measured. The histopathology of liver and brown fat tissues and mRNA expression of leptin in adipose tissue were analyzed. The oral glucose tolerance test and insulin resistance test was done at 14 weeks of age. The plasma concentrations of glucose, free fatty acid, triglyceride, cholesterol and leptin were analyzed. RESULTS: The THR mice had lower body weights than the THF mice, similar to C57BL/6 mice, with reduced fat deposition in liver and brown fat tissue. The plasma levels of glucose, triglyceride and free fatty acid were decreased in the THR group. The THR mice, however, carried more fat than normal mice, with increased plasma leptin concentration and leptin mRNA expression in fats and no alteration in plasma cholesterol levels. Furthermore, the THR mice revealed glucose intolerance with impaired after-meal insulin secretion and slight insulin resistance CONCLUSION: The food restriction apparently ameliorated the obesity and diabetic phenotypes of TH mice. However, plasma concentration of cholesterol were not improved in THR mice with increased adiposity index and glucose intolerance, suggesting the genetically prone tendency of obesity and diabetes development in TH mice possibly with an impairment in cholesterol metabolism.


Citations to this article as recorded by  
  • Cyp7a1 is continuously increased with disrupted Fxr-mediated feedback inhibition in hypercholesterolemic TALLYHO/Jng mice
    Eun-Ah Lee, Dong-In Lee, Hee-Yoen Kim, Sung-Hoon Ahn, Hye-Rim Seong, Won Hoon Jung, Ki Young Kim, Sungsub Kim, Sang Dal Rhee
    Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids.2018; 1863(1): 20.     CrossRef
Increased Plasma Dipeptidyl Peptidase IV Activities in ob/ob Mice.
Sang Dal Rhee, Young Sil Lee, Hye Sung Lee, Won Hoon Jung, Hyae Gyeong Cheon, Jin Hee Ahn, Sung Su Kim, Sang Gi Paik, Sung Don Yang
Korean Diabetes J. 2005;29(1):22-29.   Published online January 1, 2005
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AbstractAbstract PDF
Dipeptidyl peptidase IV (DPP IV/CD26), a multi-functional glycoprotein, cleaves and inactivates major insulinotropic hormones, such as glucagon-like protein (GLP)-1 and glucose dependent insulinotrophic polypeptide (GIP). METHODS: The plasma DPP IV activities in ob/ob mice were measured at 4, 8 and 13 weeks of age and the correlation between the plasma glucose concentration and DPP IV activity analyzed at 7~9 weeks of age. The glucose lowering effects of P32/98, a DPP IV inhibitor, was assessed with the oral glucose tolerance test. RESULTS: The plasma DPP IV activities in ob/ob mice were higher than those in lean mice. The plasma DPP IV activity was correlated with the plasma glucose concentration both in male and female ob/ob mice. The glucose lowering effect of DPP IV inhibitor was more prominent in ob/ob than in lean mice. CONCLUSION: The plasma DPP IV activities in ob/ob mice were higher than in lean control mice, which may contribute to the higher glucose lowering effect of the DPP IV inhibitor in ob/ob mice

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