Prunus amygdalusextract exert antidiabetic effect via inhibition of DPP-IV:in-silicoandin-vivoapproaches

Prunus amygdalus(PA) is a popular invasive seed utilized in the management of diabetes in Jammu and Kashmir, India. The objective of the current study was to scrutinize the antidiabetic effect ofPrunus amygdalus(PA) against Streptozotocin (STZ) induced diabetic rats and explore the possible mechanism of action at cellular and sub-cellular levels. Box Benkan Design (BBD) was performed to determine the effect of PA powder to methanol, extraction time and extraction temperature on DPPH and ABTS free radical scavenging activity of decoction.In-silicostudy was performed on GLUT1 (5EQG) and dipeptidyl peptidase IV (DPPIV) (2G63) protein. Type II diabetes mellitus was initiated by single intra-peritoneal injection of STZ. The Blood Glucose Level (BGL) and body weight were estimated at regular interval of time. The different biochemical parameters such as hepatic, antioxidant, and lipid parameters were estimated. At end of the study, pancreas was used for histopathological observation. The variation in DPPH antiradical scavenging activity 40.0-90.0% and ABTS antiradical scavenging activity 34-82%, were estimated respectively. STZ induced DM rats showed increased BGL at end of the experimental study.PAtreatment significantly (p < 0.001) down-regulated the BGL level.PAsignificantly (p < 0.001) altered the biochemical, hepatic and antioxidant parameters in a dose-dependent manner. Histopathological examination demonstrated the constructive mass of beta-cells in pancreas. Overall, the current study indicates that thePAtreatment down-regulated the hyperglycemic, oxidative stress and hyperlipidaemia in diabetic rats, due to inhibition of enzymes or amelioration of oxidative stress. Communicated by Ramaswamy H. Sarma

Automated summary

The study found that Prunus amygdalus treatment significantly reduced blood glucose levels in STZ-induced type II diabetic rats, improved biochemical, hepatic, and antioxidant parameters in a dose-dependent manner, and histopathological examination revealed constructive mass of beta-cells in the pancreas.