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Alpha-Mangostin Improves Cardiac Hypertrophy and Fibrosis and Associated Biochemical Parameters in High-Fat/High-Glucose Diet and Low-Dose Streptozotocin Injection-Induced Type 2 Diabetic Rats

Authors Soetikno V, Murwantara A, Andini P, Charlie F, Lazarus G, Louisa M, Arozal W

Received 3 October 2019

Accepted for publication 7 January 2020

Published 28 January 2020 Volume 2020:12 Pages 27—38


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Bal Lokeshwar

Vivian Soetikno,1 Andriyani Murwantara,2 Prisma Andini,2 Fabrian Charlie,2 Gilbert Lazarus,3 Melva Louisa,1 Wawaimuli Arozal1

1Department of Pharmacology and Therapeutics, Faculty of Medicine, Universitas Indonesia, Jakarta, 10430, Indonesia; 2Graduate Course, Faculty of Medicine, Universitas Indonesia, Jakarta 10430, Indonesia; 3Undergraduate Course, Faculty of Medicine, Universitas Indonesia, Jakarta 10430, Indonesia

Correspondence: Vivian Soetikno Tel +62 21 31930481

Purpose: The aim of present study was to analyze the effect of alpha-mangostin on cardiac hypertrophy and fibrosis and biochemical parameters in high-fat/high-glucose diet and low-dose streptozotocin injection (HF/HG/STZ)-induced type 2 diabetic rats.
Methods: Diabetes was induced in male Wistar rats by giving a combination of high-fat/high-glucose (HF/HG) diet for 3 weeks and followed by low-dose streptozotocin intraperitoneal injection (STZ; 35 mg/kg) at Week-3 and the HF/HG diet was continued until 8 weeks. The diabetic rats were then divided into four groups (each, n=6): untreated diabetic group (HF/HG/STZ); diabetic group treated with metformin 200 mg/kg/day (HF/HG/STZ+Metformin); diabetic group treated with alpha-mangostin 100 mg/kg/day (HF/HG/STZ+AM100); and diabetic group treated with alpha-mangostin 200 mg/kg/day (HF/HG/STZ+AM200) and all were given by oral gavage for 8 weeks. We also included a control group (C) treated with AM200 (C+AM200). The role of alpha-mangostin was assessed through its effect on blood glucose levels, HOMA-IR, blood pressure, body weight, pro-inflammatory cytokines in cardiac tissue, serum aminotransferases (ALT and AST), lipid profiles (cholesterol and triglyceride), blood urea nitrogen (BUN), uric acid, cardiac hypertrophy and fibrosis.
Results: Diabetic rats treated with alpha-mangostin in both doses for 8 weeks showed decrease in blood glucose levels, HOMA-IR, and blood pressure. Alpha-mangostin treatment also prevented HF/HG/STZ-induced changes in the activities of ALT, AST, BUN, uric acid, lipid profiles, and pro-inflammatory cytokines, which were comparable with the standard drug metformin, while alpha-mangostin did not show any significant effects on control rats (p> 0.05). The cardiac hypertrophy and fibrosis were also attenuated in diabetic rats treated with alpha-mangostin in both doses.
Conclusion: These data suggest that administration of alpha-mangostin can effectively attenuate diabetes-induced alteration in cardiac hypertrophy and fibrosis as well as biochemical parameters in HF/HG/STZ rats.

Keywords: insulin resistance, diabetes mellitus, hyperinsulinemia, hyperglycemia, cardiomyopathy, dietary fats

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