同型半胱氨酸、叶酸和尿酸在认知功能障碍诊断中的意义

Significance of homocysteine,folic acid and uric acid in diagnosis of cognitive dysfunction

目的:探讨检测同型半胱氨酸、叶酸和尿酸在认知功能障碍诊断中的意义。方法:选取阿尔茨海默病(AD)患者63例(AD组),血管性痴呆(Va D)患者56例(Va D组),轻度认知功能障碍(MCI)患者40例(MCI组),同时选取同期健康老年人45例为对照组,分别检测各组血浆中同型半胱氨酸、叶酸和尿酸水平。结果:1AD组和Va D组同型半胱氨酸水平均高于MCI组和对照组;2AD组、Va D组、MCI组3组叶酸水平均低于对照组,AD组、Va D组叶酸水平高于MCI组;3AD组尿酸水平低于Va D组、MCI组和对照组。结论:高水平的同型半胱氨酸可能参与了认知功能障碍的发展。较低水平的叶酸与认知功能障碍有关,AD患者具有较低的血浆尿酸水平。同型半胱氨酸、叶酸、尿酸水平可能与AD、Va D、MCI的发生发展有关,同型半胱氨酸、叶酸、尿酸水平的联合测定有助于认知功能障碍的诊断。

Objective：To explore the significance of homocysteine,folic acid and uric acid in diagnosis of cognitive dysfunction.Methods：We selected 63 patients with Alzheimer＇s disease（AD）,56 patients with vascular dementia（Va D）,40 patients with mild cognitive impairment（MIC）,and 45 healthy individuals at same period as control.The levels of homocysteine,folic acid and uric acid were detected in each group.Results：1The levels of homocysteine in AD group and Va D group were higher than those in MCI group and control group; 2The levels of folic acid in AD group,Va D group,MCI group were lower than those in control group; 3The levels of uric acid in AD group were lower than those in Va D group,MCI group and control group.Conclusion：High levels of homocysteine may be related with the pathogenesis of cognitive dysfunction.Lower levels of folic acid are related with the cognitive dysfunction.The AD patients has lower levels of uric acid.Detecting homocysteine,folic acid and combinated with uric acid is helpful for the diagnosis of cognitive dysfunction.