OBJECTIVE To investgate the therapeutic effects of different effective extracts of Morus alba L.leaf on type 2 diabetes mellitus rats(T2DM rats).METHODS SD rats were randomly divided into normal control group(group NC,n=8) and diabetes mellitus group(DM),the T2DM rats model were induced by feeding with high-sugar and high-lipid fodder for 8 weeks and a single intraperitoneal injection of streptozotocin(STZ),the successful models were divided into 5 groups at random: diabetes mellitus model group(DM),diabete...