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Título: | Combined Intake of Fish Oil and D-Fagomine Prevents High-Fat High-Sucrose Diet-Induced Prediabetes by Modulating Lipotoxicity and Protein Carbonylation in the Kidney |
Autor: | Méndez, Lucía CSIC ORCID; Muñoz Santiago, Silvia CSIC; Barros, Lorena CSIC; Miralles-Pérez, Bernat; Romeu, Marta; Ramos-Romero, Sara CSIC ORCID; Torres, Josep Lluís CSIC ORCID; Medina, Isabel CSIC ORCID | Palabras clave: | Marine omega-3 PUFAs D-Fagomine High-fat and high-sucrose diet Kidney lipotoxicity Kidney protein carbonylation Marine natural antioxidants |
Fecha de publicación: | 19-mar-2023 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Antioxidants 12 (3): 751 (2023) | Resumen: | Obesity has been recognized as a major risk factor for chronic kidney disease, insulin resistance being an early common metabolic feature in patients suffering from this syndrome. This study aims to investigate the mechanism underlying the induction of kidney dysfunction and the concomitant onset of insulin resistance by long-term high-fat and sucrose diet feeding in Sprague Dawley rats. To achieve this goal, our study analyzed renal carbonylated protein patterns, ectopic lipid accumulation and fatty acid profiles and correlated them with biometrical and biochemical measurements and other body redox status parameters. Rats fed the obesogenic diet developed a prediabetic state and incipient kidney dysfunction manifested in increased plasma urea concentration and superior levels of renal fat deposition and protein carbonylation. An obesogenic diet increased renal fat by preferentially promoting the accumulation of saturated fat, arachidonic, and docosahexaenoic fatty acids while decreasing oleic acid. Renal lipotoxicity was accompanied by selectively higher carbonylation of proteins involved in the blood pH regulation, i.e., bicarbonate reclamation and synthesis, amino acid, and glucose metabolisms, directly related to the onset of insulin resistance. This study also tested the combination of antioxidant properties of fish oil with the anti-diabetic properties of buckwheat D-Fagomine to counteract diet-induced renal alterations. Results demonstrated that bioactive compounds combined attenuated lipotoxicity, induced more favorable lipid profiles and counteracted the excessive carbonylation of proteins associated with pH regulation in the kidneys, resulting in an inhibition of the progression of the prediabetes state and kidney disease. | Versión del editor: | https://doi.org/10.3390/antiox12030751 | URI: | http://hdl.handle.net/10261/307041 | DOI: | 10.3390/antiox12030751 | ISSN: | 2076-3921 |
Aparece en las colecciones: | (IQAC) Artículos (IIM) Artículos |
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antioxidants-12-00751.pdf | Artículo principal | 1,86 MB | Adobe PDF | Visualizar/Abrir |
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