Akpan Enomfon J, Okokon Jude E, Offong Emem
Department of Biochemistry, Faculty of Basic Medical Sciences, University of Uyo, Uyo, Nigeria.
Asian Pac J Trop Biomed. 2012 Jul;2(7):523-7. doi: 10.1016/S2221-1691(12)60089-6.
To evaluate the antidiabetic and hypolipidemic activities of ethanolic leaf extract and fraction of Melanthera scandens (M. scandens) in alloxan-induced diabetic rats.
M. scandens leaf extract/fractions (37-111 mg/kg) were administered to alloxan-induced diabetic rats for 14 days and blood glucose levels (BGL) of the diabetic rats were monitored at intervals of 7 hours for acute study and 14 days for prolonged study. Lipid profiles of the treated diabetic rats were determined after the period of treatment.
Treatment of alloxan-induced diabetic rats with the extract/fractions caused a significant (P<0.001) reduction in fasting bloodglucose levels (BGL) of the diabetic rats both in acute study and prolonged treatment (2 weeks). The activities of the extract and fractions were more than that of the reference drug, glibenclamide. The extract/fractions exerted a significant reduction in the levels of serum total cholesterol, triglycerides, LDL and VLDL of extract with increases in HDL levels of the diabetic rats.
These results suggest that the leaf extract/fractions of M. scandens possesses antidiabetic effect on alloxan induced diabetic rats and this justifies its use in ethno medicine and can be exploited in the management of diabetes.
评估黑腺蝴蝶草乙醇叶提取物及其馏分对四氧嘧啶诱导的糖尿病大鼠的抗糖尿病和降血脂活性。
将黑腺蝴蝶草叶提取物/馏分(37 - 111毫克/千克)给予四氧嘧啶诱导的糖尿病大鼠,为期14天。在急性研究中,每隔7小时监测糖尿病大鼠的血糖水平(BGL);在长期研究中,监测14天。治疗期结束后,测定治疗的糖尿病大鼠的血脂谱。
在急性研究和长期治疗(2周)中,用提取物/馏分治疗四氧嘧啶诱导的糖尿病大鼠均导致糖尿病大鼠空腹血糖水平(BGL)显著降低(P<0.001)。提取物及其馏分的活性高于参比药物格列本脲。提取物/馏分使糖尿病大鼠血清总胆固醇、甘油三酯、低密度脂蛋白和极低密度脂蛋白水平显著降低,同时高密度脂蛋白水平升高。
这些结果表明,黑腺蝴蝶草叶提取物/馏分对四氧嘧啶诱导的糖尿病大鼠具有抗糖尿病作用,这证明了其在民族医学中的应用合理性,并且可用于糖尿病的管理。