中文摘要：

[目的]观察脑康Ⅱ号对糖尿病大鼠血清甲基乙二醛含量的影响,以期为该药用于临床治疗糖尿病认知障碍提供实验依据。[方法]高糖高脂饮食结合腹腔注射链脲佐菌素诱发糖尿病大鼠模型,并用不同剂量的脑康Ⅱ号（分别含生药0.5、1.0、2.0 kg/L）治疗4周。采用气相色谱-质谱联用仪（GC-MS）测定糖尿病大鼠血清中甲基二乙醛（MG）的含量。[结果]与对照组相比,模型组大鼠血清中MG含量明显升高,应用低、中、高剂量的脑康Ⅱ号治疗后,MG的表达水平均下降。[结论]脑康Ⅱ号可显著下调糖尿病大鼠血清内增高的MG水平,这可能是其治疗糖尿病认知障碍的机制之一。

英文摘要：

[Objective] To observe the effect of Naokang Ⅱ on the concentration of methylglyoxal（MG） in serum of diabetic rats in order to provide the theoretical basis for its clinic application in treating cognitive dysfunction in diabetic patients.[Methods] The diabetes mellitus（DM） was produced in rats by intraperitoneal injection of streptozotocin and feeding with high fat food and sucrose diet.The Naokang II-treated rats were given different doses of Naokang Ⅱ per oral,whereas the control and DM model groups were given double distilled water for 4 consecutive weeks.Gas Chromatography-Mass Spectrometry（GC-MS） was applied to determine the concentration of methylglyoxal（MG） in serum of rats.[Results] The concentration levels of MG in diabetic rats（216.67±15.56） μg/L was significantly high-er than that in the control group（85.29±24.97） μg/L.Different doses of Naokang Ⅱ could restore the level of MG to（178.8±19.34） μg/L,（137.9±16.95）μg/L and（128.47±16.77） μg/L,respectively.[Conclusion] Naokang Ⅱ can down-regulate the level of MG in serum of diabetic rats,and this effect may be one of the mechanisms in treating diabetic cognitive dysfunction.