Ingested capsaicinoids can prevent low-fat–high-carbohydrate diet and high-fat diet-induced obesity by regulating the NADPH oxidase and Nrf2 pathways

食品科学 碳水化合物 化学 肥胖 NADPH氧化酶 生物化学 内分泌学 生物
作者
Kazım Şahin,Cemal Orhan,Mehmet Tuzcu,Nurhan Şahin,Oğuzhan Özdemir,Vijaya Juturu
出处
期刊:Journal of Inflammation Research [Dove Medical Press]
卷期号:Volume 10: 161-168 被引量:8
标识
DOI:10.2147/jir.s149087
摘要

Capsaicinoids (CAPs), most commonly found in chili peppers, have a multitude of pharmacological and physiological effects, such as anti-inflammation, antioxidant, and anticancer effects. In the present study, we set out to investigate the hypothesis that CAPs mitigate obesity in rats and the possible mechanisms thereof.Rats were divided into six groups, including control (±10 mg CAPs/kg body weight [BW]), low-fat-high-sucrose diet (±10 mg CAPs/kg BW), and high-fat diet (±10 mg CAPs/kg BW). Blood samples and liver and aortic tissues were taken at the end of the study.CAPs supplementation significantly reduced hyperglycemia and hyperlipidemia (P<0.001) and ameliorated oxidative damage by reducing malondialdehyde concentrations in serum and liver and by increasing total antioxidant capacity in serum induced by the low-fat-high-sucrose and high-fat diets (P<0.001 for all). CAPs also depressed levels of NFκB p65, gp91phox, and p22phox, essential components of NADPH oxidase, in the aorta of rats. However, levels of Nrf2, Sirt1, and endothelial nitric oxide synthase were significantly increased in the aorta.CAPs may at least partially reduce adverse effects due to high-fat diet and sucrose consumption through regulation of energy metabolism, oxidative stress, and proteins involved in vasoprotection.
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