槲皮素降低了喂养富含蛋氨酸的饮食的大鼠血清同型半胱氨酸水平。
摘要来源：
营养。 2013年4月； 29（4）：661-6。 EPUB 2013 2月12日。PMID： 23410631 23410631 Yang, Jianquan Wu, Lingling Pu, Changjiang Guo
Article Affiliation:Bin MengAbstract:
OBJECTIVE: The aim of this study was to determine the effects of quercetin on homocysteine (Hcy) metabolism and hepatic antioxidant status in high甲硫氨酸（Met） - 喂老鼠。
方法： 大鼠被喂食6周的饮食：对照组为1.0％，MET，1.0％MET和0.1％槲皮素，1.0％MET和0.5％MET和0.5％quercetin quercetIn，1.0％quercet inde quercet and d Intured quercret and d Intured和2.5％和2.5％un和2.5％un和2.5％。血清HCY，Met，半胱氨酸，丝氨酸，牛磺酸，谷胱甘肽（GSH），槲皮素及其元分析了苯胺转氨酶（ALT）和天冬氨酸转氨酶（AST）的活性。 Hepatic malondialdehyde, GSH and carbonyls, and activity of superoxide dismutase and ferric-reducing antioxidant power also were measured.
RESULTS: Serum Hcy was increased significantly after Met treatment and decreased after quercetin supplementation.同时，血清牛磺酸增加，丝氨酸降低。 However, the content of GSH in serum and liver was decreased in the quercetin-supplemented groups and activities of serum ALT and AST were enhanced in the 1.0% Met and 2.5% quercetin-supplemented groups.
CONCLUSIONS: Quercetin is effective in decreasing serum Hcy level in high MET喂养的大鼠和可能的机制之一与HCY的转化增加有关。槲皮素可以在高进气水平上充当促氧化剂。