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International Journal of Food Sciences and Nutrition Volume 71, 2020 - Issue 5
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In vitro and animal studies

Hypoglycaemic effect of resveratrol in streptozotocin-induced diabetic rats is impaired when supplemented in association with leucine

Liohanna Silva Pires D´AvilaSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; ORCID Iconhttp://orcid.org/0000-0002-9947-186XView further author information
ORCID Icon,
Keciane Alves de OliveiraSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; ORCID Iconhttp://orcid.org/0000-0002-9928-3826View further author information
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Ewerton Sousa de AbreuSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; View further author information
,
Renata Prado VasconcelosSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; ORCID Iconhttp://orcid.org/0000-0002-0586-126XView further author information
ORCID Icon,
Jessica de Freitas NascimentoSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; View further author information
,
Edivânia Oliveira Bezerra PontesSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; ORCID Iconhttp://orcid.org/0000-0003-0234-0466View further author information
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Sarah RickliResearch Center on Obesity and Comorbidities, Campinas, SP, Brazil; View further author information
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Andrelina Noronha Coelho de SouzaSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; ORCID Iconhttp://orcid.org/0000-0002-7357-0958View further author information
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José Henrique Leal CardosoSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; ORCID Iconhttp://orcid.org/0000-0002-3972-1361View further author information
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Leonardo Reis SilveiraResearch Center on Obesity and Comorbidities, Campinas, SP, Brazil; ORCID Iconhttp://orcid.org/0000-0001-9369-1047View further author information
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Everardo Magalhaes CarneiroResearch Center on Obesity and Comorbidities, Campinas, SP, Brazil; ORCID Iconhttp://orcid.org/0000-0003-3212-369XView further author information
ORCID Icon,
Denise Pires de CarvalhoCarlos Chagas Filho Institute of Biophysics, Rio de Janeiro, RJ, Brazil; ORCID Iconhttp://orcid.org/0000-0001-6933-6424View further author information
ORCID Icon,
Francisco Leonardo Torres LealCenter for Health Sciences, Teresina, PI, BrazilORCID Iconhttp://orcid.org/0000-0003-4325-7458View further author information
ORCID Icon &
Ariclecio Cunha de OliveiraSuperior Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, Brazil; Correspondence[email protected]
ORCID Iconhttp://orcid.org/0000-0002-9295-8157View further author information
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Pages 529-539 | Received 06 Jul 2019, Accepted 28 Oct 2019, Published online: 06 Nov 2019
 
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Abstract

Studies have shown synergistic and independent effects of leucine and resveratrol (RSV) as possible therapeutic agents to ameliorate metabolic disorders. Thus, the objective of this study was to investigate the effects of supplementation with leucine and RSV, alone and in combination, on metabolic changes in white adipose tissue of neonatally STZ-induced diabetic rats. After weaning, the rats were treated with trans-resveratrol (0.6 mg/kg/dose) and/or leucine (1.35 mg/kg/dose) administered orally. The animals were euthanized at age 16 weeks for blood analyses. Subcutaneous (SC), periepididymal (PE) and retroperitoneal (RP) fat pads were weighed. Adipocytes from PE and RP pads were isolated for morphometric analysis. Long-term supplementation with RSV promoted adiposity recovery, prevented hypoinsulinemia and improved the metabolic profile of the diabetic rats. However, some of these effects were impaired when RSV was associated with leucine. The diabetic rats supplemented with leucine alone showed no significant improvement in metabolic disorders.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

Disclosure statement

The authors declare that there are no conflicts of interest.

Additional information

Funding

The study is supported by grants from the following Brazilian agencies: Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (grant number: 448389/2014-2), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) (grant number: 001) and Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico (FUNCAP) (grant number: PR2-0101-00036.01.00/15).

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