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Appl Physiol Nutr Metab ; 49(6): 738-750, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38477294

RESUMEN

Oats are recognized to provide many health benefits that are mainly associated with its dietary fibre, ß-glucan. However, the protein derived from oats is largely understudied with respect to its ability to maintain health and attenuate risk factors of chronic diseases. The goal of the current study was to investigate the metabolic effects of oat protein consumption in lieu of casein as the protein source in high fat, high sucrose (HF/HS) fed Wistar rats. Four-week-old rats were divided into three groups and were fed three different experimental diets: a control diet with casein as the protein source, an HF/HS diet with casein, or an HF/HS diet with oat protein for 16 weeks. Heart structure and function were determined by echocardiography. Blood pressure measurements, an oral glucose tolerance test, and markers of cholesterol metabolism, oxidative stress, inflammation, and liver and kidney damage were also performed. Our study results show that incorporation of oat protein in the diet was effective in preserving systolic heart function in HF/HS fed rats. Oat protein significantly reduced serum total and low-density lipoprotein cholesterol levels. Furthermore, oat protein normalized liver HMG-CoAR activity, which, to our knowledge, is the first time this has been reported in the literature. Therefore, our research suggests that oat protein can provide hypocholesterolemic and cardioprotective benefits in a diet-induced model of metabolic syndrome.


Asunto(s)
Avena , Colesterol , Dieta Alta en Grasa , Proteínas de Plantas , Animales , Masculino , Ratas , Colesterol/sangre , Sacarosa en la Dieta , Corazón/fisiología , Hígado/metabolismo , Estrés Oxidativo/efectos de los fármacos , Proteínas de Plantas/metabolismo , Ratas Wistar , Sístole
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