期刊
JOURNAL OF PHARMACY AND PHARMACOLOGY
卷 69, 期 6, 页码 698-705出版社
OXFORD UNIV PRESS
DOI: 10.1111/jphp.12705
关键词
hyperglycemia; inflammation; insulin; non-alcholic fatty liver disease
资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan [15K12715]
- Grants-in-Aid for Scientific Research [15K12715] Funding Source: KAKEN
ObjectivesA non-alcoholic fatty liver disease (NAFLD) has high prevalence and now important issue of public health. In general, there exists strong interaction between NAFLD and diabetes, but the detailed mechanism is unclear. In this study, we determined the effects of hyperglycemia on progression in the early phase of NAFLD in mice. MethodsMale ddY mice were fed a choline-deficient, l-amino acid-defined, high-fat diet (CDAHFD) consisting of 60% of kcal from fat and 0.1% methionine by weight. Hyperglycemic condition was induced by streptozotocin (STZ) treatment. The assessment of liver function used serum AST and ALT levels, and histological analysis. Hepatic tumour necrosis factor (TNF)- mRNA levels was estimated by qRT-PCR. Key findingsDuring the 3-42 days that the mice were fed CDAHFD, the livers gradually caused accumulation of fat, and infiltration of inflammation cells gradually increased. Serum AST and ALT levels and significantly increased after being fed CDAHFD for 3 days and were exacerbated by the STZ-induced hyperglycemic condition. In addition, hepatic TNF- mRNA also significantly increased. These phenomena reversed by insulin administration. ConclusionsThe results showed that progression in the early phase of NAFLD may be exacerbated by hyperglycemia-induced exacerbation of inflammation.
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