谷歌浏览器插件
订阅小程序
在清言上使用

A Natural Inhibitor of Vascular Smooth Muscle Cell Proliferation

msra(2005)

引用 23|浏览6
暂无评分
摘要
Background—Bilirubin, a natural product of heme catabolism by heme oxygenases, was considered a toxic waste product until 1987, when its antioxidant potential was recognized. On the basis of observations that oxidative stress is a potent trigger in vascular proliferative responses, that heme oxygenase-1 is antiatherogenic, and that several studies now show that individuals with high-normal or supranormal levels of plasma bilirubin have a lesser incidence of atherosclerosisrelated diseases, we hypothesized that bilirubin would have salutary effects on preventing intimal hyperplasia after balloon injury. Methods and Results—We found less balloon injury–induced neointima formation in hyperbilirubinemic Gunn rats and in wild-type rats treated with biliverdin, the precursor of bilirubin, than in controls. In vitro, bilirubin and biliverdin inhibited serum-driven smooth muscle cell cycle progression at the G1 phase via inhibition of the mitogen-activated protein kinase signal transduction pathways and inhibition of phosphorylation of the retinoblastoma tumor suppressor protein. Conclusions—Bilirubin and biliverdin might be potential therapeutics in vascular proliferative disorders. (Circulation. 2005;112:1030-1039.)
更多
查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要