Department of Pharmaceutical Chemistry, Faculty of Pharmacy, International Islamic University Malaysia (IIUM), 25200 Kuantan, Pahang DM, Malaysia.
J Ethnopharmacol. 2010 Aug 19;131(1):140-5. doi: 10.1016/j.jep.2010.06.016. Epub 2010 Jun 18.
The present study was aimed to investigate the anti-diabetic potential of the leaves of Tetracera scandens Linn. Merr. (Dilleniaceae) in vivo with regard to prove its efficacy by local herbalists in the treatment of diabetes frailties.
Crude aqueous (AQ) and methanol (MEOH) extracts of the leaves of T. scandens L. were administered to both normal and alloxan induced diabetic male albino rats (Wistar strain). The blood glucose levels were measured at 0, 2, 4, 6 and 8h after oral administration of AQ and MEOH extracts.
Significant reduction in glucose was observed in fasting blood glucose levels in the treated diabetic rats without causing any hypoglycemic effect compared to normal rats. Both polar extracts of the leaves of T. scandens L. exhibited significant anti-hyperglycemic activity at different doses and intervals. The highest anti-hyperglycemic effect (62.5%) was observed by the AQ extract at 0.25 g/kg body weight (b.w.) and MEOH extract (36.5%) at 0.5 g/kg b.w. after 8h. The significant anti-hyperglycemic activity was found to be comparable with a known oral synthetic hypoglycemic drug, glibenclamide 0.25mg/kg b.w.
This study provides scientific evidence that the leaves of T. scandens L. have anti-diabetic efficacy and justifies its utility by local herbalists. However, more experiments at the clinical levels are required to confirm the utility of this plant by traditional practitioners in the management of diabetes mellitus.
本研究旨在探讨 Tetracera scandens Linn. Merr.(Dilleniaceae)叶的抗糖尿病潜力,以证明其在治疗糖尿病虚弱方面的疗效,当地草药医生一直以来都在使用这种草药。
将 Tetracera scandens L. 的叶的粗水提物(AQ)和甲醇提取物(MEOH)施用于正常和链脲佐菌素诱导的糖尿病雄性白化大鼠(Wistar 品系)。在口服 AQ 和 MEOH 提取物后 0、2、4、6 和 8 小时测量血糖水平。
与正常大鼠相比,治疗后的糖尿病大鼠的空腹血糖水平显著降低,且未引起任何低血糖作用。Tetracera scandens L. 的两种极性提取物在不同剂量和时间间隔均表现出显著的抗高血糖作用。AQ 提取物在 0.25g/kg 体重和 MEOH 提取物在 0.5g/kg 体重时的抗高血糖作用最高(62.5%),8 小时后。发现这种显著的抗高血糖作用与已知的口服合成降血糖药物格列本脲 0.25mg/kg 体重相当。
这项研究提供了科学证据,证明 Tetracera scandens L. 的叶子具有抗糖尿病功效,并证明了当地草药医生使用它的合理性。然而,需要在临床水平进行更多的实验来确认传统从业者在管理糖尿病方面使用这种植物的效用。