Oxidative stress and metabolic syndrome: Effects of a natural antioxidants enriched diet on insulin resistance

Clinical Nutrition ESPEN
A ManciniE Meucci

Abstract

Oxidative stress (OS) could play a role in metabolic syndrome-related manifestations contributing to insulin resistance (IR). The aim of the present study was to gain insight the relationships between OS, IR and other hormones involved in caloric balance, explaining the effects of a natural antioxidant-enriched diet in patients affected by metabolic syndrome. We investigated the effects of dietary antioxidants on IR, studying 53 obese (20 males and 33 females, 18-66 years old, BMI 36.3 ± 5.5 kg/m(2)), with IR evaluated by Homeostasis Model Assessment (HOMA)-index, comparing 4 treatments: hypocaloric diet alone (group A) or plus metformin 1000 mg/daily (group B), natural antioxidants-enriched hypocaloric diet alone (group C) or plus metformin (group D). A personalized program, with calculated antioxidant intake of 800-1000 mg/daily, from fruit and vegetables, was administered to group C and D. The glycemic and insulinemic response to oral glucose load, and concentrations of total-, LDL- and HDL-cholesterol, triglycerides, uric acid, C reactive protein, fT3, fT4, TSH, insulin-like growth factor 1 were evaluated before and after 3-months. Plasma Total antioxidant capacity was determined by H2O2-metmyoglobin system, which interacti...Continue Reading

Citations

Apr 7, 2016·Mediators of Inflammation·Antonio ManciniDiego Currò
Feb 11, 2021·International Journal of Molecular Sciences·Antonio ManciniAndrea Silvestrini

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