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González-Garibay AS, López-Vázquez A, García-Bañuelos J, Sánchez-Enríquez S, Sandoval-Rodríguez AS, Del Toro Arreola S, Bueno-Topete MR, Muñoz-Valle JF, González Hita ME, Domínguez-Rosales JA, Armendáriz-Borunda J, Bastidas-Ramírez BE. Effect of Ursolic Acid on Insulin Resistance and Hyperinsulinemia in Rats with Diet-Induced Obesity: Role of Adipokines Expression. J Med Food 2020; 23:297-304. [PMID: 31747348 DOI: 10.1089/jmf.2019.0154] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Excess of visceral adipose tissue (VAT) characteristic of obesity leads to a proinflammatory state disrupting the insulin signaling pathway, triggering insulin resistance (IR) and inflammation, the main processes contributing to obesity comorbidities. Ursolic acid (UA), a pentacyclic triterpenoid occurring in a variety of plant foods, exhibits anti-inflammatory properties. The aim of this study was to evaluate UA effects on IR, hyperinsulinemia, and inflammation in experimental diet-induced obesity. Forty male Wistar rats were randomly assigned to eight groups (n = 5). One group was used for time 0. Three groups were labeled as OBE (control): receiving high-fat diet (HFD; fat content 45.24% of energy) during 3, 6, or 9 weeks; three groups UA-PREV: exposed to simultaneous HFD and UA during 3, 6, or 9 weeks to evaluate UA preventive effects; one group UA-REV: receiving HFD for 6 weeks, followed by simultaneous HFD and UA for three additional weeks to analyze UA reversal effects. Measurements were performed after 3, 6, or 9 weeks of treatment. Adiposity was calculated by weighing VAT after sacrifice. Serum markers were quantified through colorimetric and enzyme-linked immunosorbent assay methods. VAT adipokines RNAm expression was evaluated by quantitative reverse transcriptase-polymerase chain reaction. Data were analyzed by Kruskal-Wallis and Mann-Whitney U tests. UA significantly decreased adiposity, IR, hyperinsulinemia, triacylglycerides, and cholesterol levels, and also VAT mRNA expression of MCP-1 (monocyte chemoattractant protein-1), IL (interleukin)-1β and IL-6, concomitantly increasing adiponectin levels. UA metabolic effects demonstrated in this study support its potential therapeutic utility to improve IR, hyperinsulinemia, and inflammation observed in obesity and diabetes.
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Affiliation(s)
- Angélica S González-Garibay
- Department of Molecular Biology and Genomics, Institute of Research on Chronic Degenerative Diseases, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - Alfonso López-Vázquez
- Department of Molecular Biology and Genomics, Institute of Research on Chronic Degenerative Diseases, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - Jesús García-Bañuelos
- Department of Molecular Biology and Genomics, Institute of Molecular Biology in Medicine and Gene Therapy, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - Sergio Sánchez-Enríquez
- Department of Clinics, University Center of Los Altos, University of Guadalajara, Tepatitlán de Morelos, Jalisco, México
| | - Ana S Sandoval-Rodríguez
- Department of Molecular Biology and Genomics, Institute of Molecular Biology in Medicine and Gene Therapy, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - Susana Del Toro Arreola
- Department of Molecular Biology and Genomics, Institute of Research on Chronic Degenerative Diseases, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - Miriam R Bueno-Topete
- Department of Molecular Biology and Genomics, Institute of Research on Chronic Degenerative Diseases, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - José F Muñoz-Valle
- Department of Medical Clinics, Institute of Research on Biomedical Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - Mercedes E González Hita
- Department of Molecular Biology and Genomics, Laboratory of Biochemistry, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - José A Domínguez-Rosales
- Department of Molecular Biology and Genomics, Institute of Research on Chronic Degenerative Diseases, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
| | - Juan Armendáriz-Borunda
- Department of Molecular Biology and Genomics, Institute of Molecular Biology in Medicine and Gene Therapy, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
- Technological Institute of Monterrey, Campus Guadalajara, Guadalajara, Jalisco, México
| | - Blanca E Bastidas-Ramírez
- Department of Molecular Biology and Genomics, Institute of Research on Chronic Degenerative Diseases, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, México
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