Antidiabetic, antilipidemic, and antioxidant activities of Gouania longipetala methanol leaf extract in alloxan-induced diabetic rats

Abstract Context: Gouania longipetala Hemsl. (Rhamnaceae) is used in folkloric medicine for treating diabetes mellitus and its associated symptoms. Objective: This study evaluated the antidiabetic antilipidemic and antioxidant activities of the plant methanol leaf extract. Materials and methods: Diabetes was induced in rats by intraperitoneal injection of alloxan monohydrate (160 mg/kg). Three test doses (50, 100, and 150 mg/kg) of G. longipetala extract (GLE) were administered orally and the effects were compared with glibenclamide (2 mg/kg). The effect of GLE on hyperglycemia and sub-acute study for 21 d were carried out using its effect on fasting blood sugar (FBS) level. Serum biochemistry and antioxidant activity were evaluated. Histopathological evaluation of the pancreas was also done. Results: The LD50 of G. longipetala was found to be >4000 mg/kg. The extract significantly (p