期刊
AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY
卷 281, 期 1, 页码 R365-R372出版社
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/ajpregu.2001.281.1.R365
关键词
alcohol; vascular smooth muscle cells; chorioallantoic membrane
类别
资金
- NHLBI NIH HHS [HL-51971] Funding Source: Medline
Alcohol abuse has a negative impact on human health; however, epidemiological studies show that moderate consumption of ethanol (EtOH) reduces the risk of coronary heart disease, sudden cardiac death, and ischemic stroke. The mechanisms for these reductions in cardiovascular disease are not well established. Using cultured coronary artery vascular smooth muscle cells, we found that moderate levels of EtOH (10 and 20 mM) caused dose-related increases in both vascular endothelial growth factor (VEGF) mRNA (Northern blot) expression (1.9- and 2.6-fold) and VEGF protein (ELISA) expression (19 and 68%) compared with control (P< 0.05). EtOH at 0.25 g.kg(-1).day(-1) (7 days) increased VEGF mRNA expression by 1.48-fold over control, and increased vessel length density from 3.9 +/- 0.7 (control) to 6.0 +/- 0.3 mm/mm(2) (P< 0.05) in chick chorioallantoic membrane (CAM). We conclude that moderate levels of ethanol can induce VEGF expression and stimulate angiogenesis in chick CAM. Therefore, the results provide a theoretical basis for speculating that the cardiovascular-protective effects of moderate alcohol consumption may be partly mediated through VEGF-induced angiogenesis.
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