Physiological and metabolic effects of yellow mangosteen (Garcinia dulcis) rind in rats with food-induced metabolic syndrome

John, Oliver D. and Mouatt, Peter and Majzoub, Marwan E. and Thomas, Torsten and Panchal, Sunil K. and Brown, Lindsay (2019) Physiological and metabolic effects of yellow mangosteen (Garcinia dulcis) rind in rats with food-induced metabolic syndrome. International Journal of Molecular Sciences, 21 (1):272. pp. 1-29. ISSN 1661-6596

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Abstract

Metabolic syndrome is a cluster of disorders that increase the risk of cardiovascular disease and diabetes. This study has investigated the responses to rind of yellow mangosteen (Garcinia dulcis), usually discarded as waste, in a rat model of human metabolic syndrome. The rind contains higher concentrations of phytochemicals (such as garcinol, morelloflavone and citric acid) than the pulp. Male Wistar rats aged 8–9 weeks were fed either corn starch diet or high-carbohydrate, high-fat diet for 16 weeks, which were supplemented with 5% freeze-dried G. dulcis fruit rind powder during the last 8 weeks. We characterised metabolic, cardiovascular, liver and gut microbiota parameters. High-carbohydrate, high-fat diet-fed rats developed abdominal obesity, hypertension, increased left ventricular diastolic stiffness, decreased glucose tolerance, fatty liver and reduced Bacteroidia with increased Clostridia in the colonic microbiota. G. dulcis fruit rind powder attenuated these changes, improved cardiovascular and liver structure and function, and attenuated changes in colonic microbiota. G. dulcis fruit rind powder may be effective in metabolic syndrome by appetite suppression, inhibition of inflammatory processes and increased fat metabolism, possibly related to changes in the colonic microbiota. Hence, we propose the use of G. dulcis fruit rind as a functional food to ameliorate symptoms of metabolic syndrome.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Health and Wellbeing (1 Jan 2015 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Health and Wellbeing (1 Jan 2015 -)
Date Deposited: 15 Jun 2020 04:56
Last Modified: 20 Jul 2020 03:35
Uncontrolled Keywords: metabolic syndrome; Garcinia dulcis; citric acid; garcinol; morelloflavone; microbiota
Fields of Research (2008): 11 Medical and Health Sciences > 1111 Nutrition and Dietetics > 111103 Nutritional Physiology
11 Medical and Health Sciences > 1115 Pharmacology and Pharmaceutical Sciences > 111501 Basic Pharmacology
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970111 Expanding Knowledge in the Medical and Health Sciences
Identification Number or DOI: https://doi.org/10.3390/ijms21010272
URI: http://eprints.usq.edu.au/id/eprint/37789

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