Andallu B, Vinay Kumar A V, Varadacharyulu N Ch
Sri Sathya Sai University, Anantapur - 515 001, Andhra Pradesh, India.
Int J Diabetes Dev Ctries. 2009 Jul;29(3):123-8. doi: 10.4103/0973-3930.54289.
To observe the influence of mulberry (Morus indica L. cv Suguna) leaves on lipid abnormalities in STZ-diabetic rats.
Treatment with dried mulberry leaf powder for a period of 8 weeks in hyperglycemic and hyperlipidemic STZ-diabetic rats.
Mulberry leaves regulated fasting blood glucose, ameliorated the abnormalities in lipid profile as indicated by significant (P<0.01) decrease in serum triglycerides, phospholipids, cholesterol and plasma free fatty acids by 50, 6, 31 and 22% respectively in STZ- diabetic rats compared to diabetic control rats which had significantly (P<0.01) raised levels of triglycerides, phospholipids, cholesterol and free fatty acids than the normal control rats. A marked increase in fecal bile acids (154%) was observed in mulberry treated diabetic rats compared to the diabetic control group indicating conversion of cholesterol to bile acids. In addition, mulberry supplementation significantly lowered LDL-C (67%) and VLDL-C (44%) levels and increased HDL-C (53%) and also decreased atherogenic index (58%) significantly when compared to the diabetic control group.
Besides the diabetic rats, mulberry leaves affected lipid profile in normal rats also indicating hypolipidemic effect as a result of the synergistic action of bioactive compounds.
观察桑叶(桑品种苏古纳)对链脲佐菌素诱导的糖尿病大鼠脂质异常的影响。
对高血糖和高血脂的链脲佐菌素诱导的糖尿病大鼠给予干桑叶粉治疗8周。
桑叶可调节空腹血糖,改善脂质谱异常,与糖尿病对照组相比,链脲佐菌素诱导的糖尿病大鼠血清甘油三酯、磷脂、胆固醇和血浆游离脂肪酸分别显著降低(P<0.01)50%、6%、31%和22%,而糖尿病对照组这些指标的水平显著高于正常对照组(P<0.01)。与糖尿病对照组相比,桑叶治疗的糖尿病大鼠粪便胆汁酸显著增加(154%),表明胆固醇转化为胆汁酸。此外,与糖尿病对照组相比,补充桑叶可显著降低低密度脂蛋白胆固醇(67%)和极低密度脂蛋白胆固醇(44%)水平,增加高密度脂蛋白胆固醇(53%),并显著降低动脉粥样硬化指数(58%)。
除糖尿病大鼠外,桑叶对正常大鼠的脂质谱也有影响,表明生物活性化合物的协同作用导致了降血脂作用。