Ochuko L Erukainure1, Olajumoke A Oyebode2, Omamuyovwi M Ijomone3, Chika I Chukwuma4, Neil A Koorbanally5, Md Shahidul Islam6. 1. Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa; Nutrition and Toxicology Division, Federal Institute of Industrial Research, Lagos, Nigeria. 2. Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa. 3. Department of Human Anatomy, Federal University of Technology, Akure, Nigeria. 4. Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa; Department of Health and Environmental Studies, Central University of Technology, Bloemfontein, South Africa. 5. School of Chemistry and Physics, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa. 6. Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa. Electronic address: islamd@ukzn.ac.za.
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE: Raffia palm (Raphia hookeri) wine (RPW) is amongst the natural products from plants, utilized singly or in combination with other medicinal plants for the treatment of several ailments including Diabetes Mellitus (DM). However, there is a scientific dearth on its antidiabetic activity. AIM: The antidiabetic effect of RPW and its possible mechanism of actions were investigated in diabetic rats. METHODS: Four groups of male SD rats were first supplied with 10% fructose solution ad libitum for 2 weeks instead of drinking water followed by an intraperitonial injection of streptozotocin (40 mg/kg) to induce diabetes. Two diabetic groups were administered RPW at 150 and 300 mg/kg bodyweight (BW) respectively; a group was administered with metformin, while the other one was served as a negative control. Two groups of normal rats were administered with water and RPW (300 mg/kg BW) and served as normal control and normal toxicology group, respectively. RESULTS: Five weeks treatment of RPW led to significant (p < 0.05) increase in serum insulin and HDL-c levels with concomitant reduction in blood glucose, fructosamine, ALT, uric acid, triglycerides and LDL-c levels in diabetic rats. Rats treated with RPW had elevated levels of GSH, SOD, catalase, ATPase and α-amylase activities, while reduced NO level and myeloperoxidase activity was observed in their serum and pancreatic tissues. RPW also improved pancreatic β-cell function and restored β- and acinar cells morphology, and capillary networks. The activities of glycogen phosphorylase, fructose 1,6 biphosphatase, glucose-6-phosphatase, and acetylcholinesterase were also inhibited in RPW-treated diabetic rats, with concomitant down regulation of Nrf2 gene expression. CONCLUSION: The data of this study suggest that RPW modulates glucose homeostasis by enhancing insulin secretion as well as inhibiting redox imbalance in diabetic rats, which may be attributed to the synergetic effects of its phytochemical constituents as identified by GC-MS analysis.
ETHNOPHARMACOLOGICAL RELEVANCE: Raffia palm (Raphia hookeri) wine (RPW) is amongst the natural products from plants, utilized singly or in combination with other medicinal plants for the treatment of several ailments including Diabetes Mellitus (DM). However, there is a scientific dearth on its antidiabetic activity. AIM: The antidiabetic effect of RPW and its possible mechanism of actions were investigated in diabeticrats. METHODS: Four groups of male SD rats were first supplied with 10% fructose solution ad libitum for 2 weeks instead of drinking water followed by an intraperitonial injection of streptozotocin (40 mg/kg) to induce diabetes. Two diabetic groups were administered RPW at 150 and 300 mg/kg bodyweight (BW) respectively; a group was administered with metformin, while the other one was served as a negative control. Two groups of normal rats were administered with water and RPW (300 mg/kg BW) and served as normal control and normal toxicology group, respectively. RESULTS: Five weeks treatment of RPW led to significant (p < 0.05) increase in serum insulin and HDL-c levels with concomitant reduction in blood glucose, fructosamine, ALT, uric acid, triglycerides and LDL-c levels in diabeticrats. Rats treated with RPW had elevated levels of GSH, SOD, catalase, ATPase and α-amylase activities, while reduced NO level and myeloperoxidase activity was observed in their serum and pancreatic tissues. RPW also improved pancreatic β-cell function and restored β- and acinar cells morphology, and capillary networks. The activities of glycogen phosphorylase, fructose 1,6 biphosphatase, glucose-6-phosphatase, and acetylcholinesterase were also inhibited in RPW-treated diabeticrats, with concomitant down regulation of Nrf2 gene expression. CONCLUSION: The data of this study suggest that RPW modulates glucose homeostasis by enhancing insulin secretion as well as inhibiting redox imbalance in diabeticrats, which may be attributed to the synergetic effects of its phytochemical constituents as identified by GC-MS analysis.
Authors: Theodore N Djeni; Karen H Kouame; Francine D M Ake; Laurent S T Amoikon; Marcellin K Dje; Kumaraswamy Jeyaram Journal: Sci Rep Date: 2020-02-03 Impact factor: 4.379
Authors: Veronica F Salau; Ochuko L Erukainure; Kolawole A Olofinsan; Omamuyovwi M Ijomone; Nontokozo Z Msomi; Md Shahidul Islam Journal: Sci Rep Date: 2021-09-21 Impact factor: 4.379