ABSTRACT
SUMMARY OBJECTIVE: To verify the association between metabolic syndrome and its components, and intake of antioxidant nutrients in adolescents. METHODS: This is a cross-sectional study of the data of 327 adolescents in a high school in Teresina, Piauí, Brazil, pertaining to their socioeconomic background, anthropometric measurements, dietary intake (selenium; copper; zinc; vitamins A, C, and E), hemodynamics, and biochemical tests. The criteria for diagnosing metabolic syndrome in adolescents were applied. Binary logistic regression was used to verify the association between metabolic syndrome and its components, and intake of antioxidants. The level of significance was established at p<0.05. RESULTS: Prevalence of metabolic syndrome was 7.0%, with a significant association between body mass index and blood pressure. Lower tertiles of copper and vitamins A and E intake were associated with high triglyceride and glycemic levels. The association with vitamins A and E remained after adjustment. CONCLUSIONS: A significant association between lower vitamins A and E intake and metabolic syndrome components (altered triglycerides and glycemic levels) was found. Besides further studies on this issue, the need for health interventions was found, which ensures the appropriate intake of antioxidant nutrients during adolescence.
Subject(s)
Humans , Adolescent , Metabolic Syndrome/epidemiology , Antioxidants , Energy Intake , Cross-Sectional Studies , Diet , EatingABSTRACT
Food irradiation has been steadily increased in many countries concomitantly with increasing international trades and concerns about naturally occurring harmful contaminants of food. Although, irradiation provides an excellent safeguard for the consumer by destroying harmful bacteria, it would be necessary to investigate nutritional adequacy of irradiated foods with a special emphasis on such foods as red pepper powders, cold-water fishes (mackerel), sesame seeds that are widely consumed in Korea. These food items are of special concern due to the fact that most of them are imported and that several nutrients contained in them are sensitively reacting to irradiation. We observed changes in the antioxidant nutrients contents, such as vitamin A, beta-carotene, vitamin C and total phenol, and also vitamin B1 in the foods that were irradiated at different dose levels. The nutrients contents in red pepper were respectively 98.6% and 92.3% for total phenol, and 97.8% and 94.5% for beta-carotene, right after irradiation at the dose of 10 and 20 kGy. The vitamin C contents decreased with irradiation doses up to 76.4% (10 kGy) and 68.5% (20 kGy) and B1 contents decreased to 54.9% and 80.7% of non irradiated red pepper. When the mackerel was irradiated at the applied dose of 3 and 7 kGy, total phenol concentration of the irradiated fish was respectively 91.3% and 94.2% of non irradiated fish. The amounts of vitamin A were 82.6% (3 kGy) and 78.0% (7 kGy) of unirradiated sample and vitamin B1 contents reduced to 30.5% and 51.5%. alpha-Tocopherol content was 33.9% of the non-irradiated one when it was irradiated at 7 kGy. Vitamin A and gamma-tocopherol contents in sesame seeds linearly decreased with the applied doses (5 and 10 kGy). Vitamin A contents decreased up to 87.8% (5 kGy) and 82.9% (10 kGy) and that of gamma-tocopherol were 72.4% and 66.5% of the unirradiated sample.
Subject(s)
alpha-Tocopherol , Ascorbic Acid , Bacteria , beta Carotene , Capsicum , Fishes , Food Irradiation , gamma-Tocopherol , Korea , Perciformes , Phenol , Powders , Sesamum , Thiamine , Vitamin A , VitaminsABSTRACT
Cerebral ischemia and reperfusion can cause delayed neuronal death in rodents,such as Mongolian gerbils and stroke-prone spontaneously hypertensive rats(SHRSP),which are used as an experimental stroke model.The protective effects of antioxidant nutrients such as vitamin E,green tea extract,ginkgo biloba extract,resveratrol,niacin and isoflavones in cerebral ischemia and reperfusion brain injury were reviewed.