Thirty days of combined consumption of a high-fat diet and fructose-rich beverages promotes insulin resistance and modulates inflammatory response and histomorphometry parameters of liver, pancreas, and adipose tissue in Wistar rats
| Autor: | Joyce Camilla C. Oliveira, Danusa Dias Soares, Cajsa Tonoli, Mara Lívia dos Santos, Elsa Heyman, Gleide F. Avelar, Bruno Pereira Melo, Josiana Lopes Sabino, Aline Cruz Zacarias, Romain Meeusen, Adaliene Versiani Matos Ferreira, Letícia Maria Cordeiro de Souza |
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| Přispěvatelé: | Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 (URePSSS), Université d'Artois (UA)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille, Human Physiology and Sports Physiotherapy Research Group, Physiotherapy, Human Physiology and Anatomy, International Relations and Mobility |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Male
medicine.medical_specialty endocrine system Consumption Endocrinology Diabetes and Metabolism [SDV]Life Sciences [q-bio] Adipose tissue Fructose Diet High-Fat Proinflammatory cytokine Beverages chemistry.chemical_compound Insulin resistance Internal medicine Remaining metabolism medicine Animals Insulin Animal model Rats Wistar Pancreas Nutrition and Dietetics business.industry Insulin tolerance test Interleukin Inflammatory response medicine.disease Rats medicine.anatomical_structure Endocrinology High-fat diet chemistry Liver business Hormone |
| Zdroj: | Nutrition Nutrition, 2021, Nutrition, 91-92, pp.111403. ⟨10.1016/j.nut.2021.111403⟩ |
| ISSN: | 0899-9007 |
| DOI: | 10.1016/j.nut.2021.111403⟩ |
| Popis: | OBJECTIVE: The aim of this study was to verify the effects of consumption of a high-fat diet (HFD) combined with fructose-rich beverages (FRT) in promoting metabolic and physiologic changes associated with insulin resistance. METHODS: Thirty-two male Wistar rats (250 ± 10 g) were randomly allocated into four groups (n = 8) that received either a standard diet (CON), HFD, FRT, or HFD + FRT for 30 d. Insulin sensitivity and glucose tolerance were evaluated using the insulin tolerance test (ITT) and oral glucose tolerance test (OGTT). Serum samples were used to analyze the metabolic parameters and hormone levels. Interleukin (IL)-6, IL-10, IL-1β, and tumor necrosis factor-α assays were performed in the liver, pancreas, gastrocnemius muscle, and epididymal adipose tissue by enzyme-linked immunosorbent assay. Histologic and morphometric analyses were performed on the liver, pancreas, and adipose tissues. RESULTS: Consumption of HFD + FRT promoted a significant increase (P < 0.05) in body weight, index adiposity,and in the area under the curve of ITT (P < 0.001) and OGTT (P < 0.001) when compared with the CON group. Consumption of FRT alone increased fasting glucose (P = 0.015), insulin (P = 0.035), and homeostasis model assessment index (P = 0.018), and these changes were of greater magnitude when FRT was combined with HFD. Moreover, the rats fed an HFD + FRT demonstrated a significant increase in lipid droplets in the liver (P < 0.001), an increase in adipocyte area, and an increase in inflammatory cytokines in the liver, pancreas, skeletal muscle, and adipose tissue. CONCLUSION: Consumption of an HFD + FRT promotes insulin resistance, increases inflammatory cytokines, and modulates histomorphometric parameters of the liver, pancreas, and adipose tissue, typical of insulin resistance in humans. |
| Databáze: | OpenAIRE |
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