3',4'-Dihydroxyflavonol (DiOHF) 是一种有效的抗氧化剂,可降低糖尿病大鼠肠系膜动脉中的超氧化物并改善 NO 功能。
体外研究:
3',4'-Dihydroxyflavonol (DiOHF) acutely preserves nitric oxide (NO) activity in the presence of elevated reactive oxygen species (ROS). DiOHF improves NO activity in diabetes by reducing Nox2-dependent superoxide production and preventing eNOS uncoupling to improve endothelial function. 3',4'-Dihydroxyflavonol reduces vascular contraction through Ca desensitization in permeabilized third-order branches of rat mesenteric arteries.
参考文献:
1. Leo CH, et al. 3',4'-Dihydroxyflavonol reduces superoxide and improves nitric oxide function in diabetic rat mesenteric arteries. PLoS One. 2011;6(6):e20813. 2. Kim HY, et al. 3',4'-Dihydroxyflavonol reduces vascular contraction through Ca²⁺ desensitization in permeabilized rat mesenteric artery. Naunyn Schmiedebergs Arch Pharmacol. 2012 Feb;385(2):191-202.