期刊
TOXICOLOGY MECHANISMS AND METHODS
卷 22, 期 5, 页码 375-382出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/15376516.2012.666651
关键词
Ethanol; matrix metalloproteinases; oxidative stress; vascular endothelial growth factor-receptor; von Willebrand factor
类别
资金
- Kerala State Council for Science, Technology and Environment (KSCSTE), Governtment of Kerala, India
- Van Slyke Foundation of American Association for Clinical Chemistry (AACC)
Angiogenesis, the growth of new blood vessels, is essential during tissue repair. Though most molecular mechanisms of angiogenesis are common to the liver and other organs, there was no report available whether alcoholic liver disease also causes angiogenesis. In this study, we examined the effects of long term ethanol (1.6 g/kg body weight/day) consumption on angiogenic responses in the liver of male Wistar strain albino rats (16-18 weeks old, weighing 200-220 g) up to 36 weeks. Chronic ethanol consumption was associated with not only elevated oxidative stress, and altered cytokines expression, but also developed large von Willebrand factor, fibrosis and activation of matrix metalloproteinases. Moreover, vascular endothelial growth factor-receptor 2 (VEGF-R2, fetal liver kinase 1: Flk-1/KDR) expression and neovessel generation in the rat liver were noted after 36 weeks of ethanol consumption. Thus our study provides novel evidence that long-term ethanol consumption is associated with angiogenesis through delicate and coordinated action of a variety of mediators.
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