期刊
PPAR RESEARCH
卷 2010, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2010/325183
关键词
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资金
- CIFRE
- Servier Group
- EEC [20222]
Thiazolidinediones are a class of Peroxisome Proliferator Activated Receptor gamma (PPAR gamma) agonists that reduce insulin resistance in type 2 diabetic patients. Although no detectable hepatic toxicity has been evidenced in animal studies during preclinical trials, these molecules have nevertheless induced hepatic adverse effects in some treated patients. The mechanism(s) of hepatotoxicity remains equivocal. Several studies have been conducted using PCR analysis and microarray technology to identify possible target genes and here we review the data obtained from various in vivo and in vitro experimental models. Although PPAR gamma is expressed at a much lower level in liver than in adipose tissue, PPAR gamma agonists exert various PPAR gamma-dependent effects in liver in addition to PPAR gamma-independent effects. Differences in effects are dependent on the choice of agonist and experimental conditions in rodent animal studies and in rodent and human liver cell cultures. These effects are much more pronounced in obese and diabetic liver. Moreover, our own recent studies have shown major interindividual variability in the response of primary human hepatocyte populations to troglitazone treatment, supporting the occurrence of hepatotoxicity in only some individuals.
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