Antidiabetic, antihyperlipidemic effects and quantification of bioactive compounds by HPLC from Crassula ovata leaves extracts on streptozotocin induced diabetic Wistar rats

Background: Crassula ovata have been recommended in ethno medicines for the treatment of diabetes. In this research the scientific claim is studied and validated. Objective: Objective of the current study has been focused to assess the traditional use of Crassula ovata to heal diabetes, hyperlipidemia and to check the presence of constituents responsible for these actions. Methods: The approved plant's ethanol, acetone, and chloroform extracts were prepared by maceration. For in vivo activity, the model of streptozotocin induced diabetes mellitus in rats was chosen, wherein antidiabetic parameters such as body weight, urine volume, blood glucose level, and lipid profile parameters were evaluated. Quantification of bioactive compounds was done by a high-performance liquid chromatographic technique using diode-array detection. Results: The ethanolic extract noticeably depleted increased blood glucose levels and has positive effects on altered lipid profile after administering a dose of 200 mg/kg orally compared with oral hypoglycemic drug metformin. HPLC analysis of ethanolic extract identified several secondary metabolites in Crassula ovata, including Gallic acid, Rutin, Luteolin, Caffeic acid, Catechin, Kaempferol and Quercetin. These compounds have been reported for their potential antidiabetic effects. The analytical data on the chemical composition supported its traditional use in diabetes management. Conclusion:  From the results, it can be concluded that, Crassula ovata ethanolic extract can be ideal for the treatment of diabetes and hyperlipidemia. Further studies are required to locate the active pharmaceutical ingredient for the said actions.