Barbosa Priscila Oliveira, Pala Daniela, Silva Carla Teixeira, de Souza Melina Oliveira, do Amaral Joana Ferreira, Vieira Renata Adrielle Lima, Folly Gilce Andrezza de Freitas, Volp Ana Carolina Pinheiro, de Freitas Renata Nascimento
Research Nucleus on Biological Sciences-NUPEB, Federal University of Ouro Preto, Morro do Cruzeiro Campus, Bauxita, Ouro Preto, MG, Brazil.
School of Nutrition, Federal University of Ouro Preto. Morro do Cruzeiro Campus, Bauxita, Ouro Preto, MG, Brazil.
Nutrition. 2016 Jun;32(6):674-80. doi: 10.1016/j.nut.2015.12.030. Epub 2015 Dec 29.
The aim of the present study was to evaluate the effect of açai pulp (Euterpe oleracea Martius) intake on the prevention of oxidative damage by measuring the activity of antioxidant enzymes and biomarkers of protein oxidation in women.
A nutritional intervention study was conducted with thirty-five healthy women who were asked to consume 200 g/d of açai pulp for 4 wk. Blood samples were collected, and blood pressure and anthropometric parameters were measured before and after the experimental period. Antioxidant enzymes, superoxide dismutase, catalase, glutathione, production of reactive oxygen species, and total antioxidant capacity were evaluated in polymorphonuclear cells. Serum concentration of protein carbonyl and sulfhydryl groups were also determined.
The açai intake increased catalase activity, total antioxidant capacity, and reduced the production of reactive oxygen species. Furthermore, it reduced serum concentration of protein carbonyl and increased total serum sulfhydryl groups.
These results show the antioxidant benefit of dietary açai for the healthy women included in the present study, and may increase understanding of the beneficial health properties of this fruit.
本研究旨在通过测量抗氧化酶活性和女性蛋白质氧化生物标志物，评估阿萨伊果肉（Euterpe oleracea Martius）摄入对预防氧化损伤的作用。
对35名健康女性进行了一项营养干预研究，要求她们连续4周每天食用200克阿萨伊果肉。在实验期前后采集血样，并测量血压和人体测量参数。评估多形核细胞中的抗氧化酶、超氧化物歧化酶、过氧化氢酶、谷胱甘肽、活性氧生成和总抗氧化能力。还测定了血清中蛋白质羰基和巯基的浓度。
摄入阿萨伊果肉可提高过氧化氢酶活性、总抗氧化能力，并减少活性氧的生成。此外，它还降低了血清中蛋白质羰基的浓度，增加了血清总巯基含量。
这些结果表明，本研究中纳入的健康女性食用阿萨伊果肉具有抗氧化益处，可能会增进对这种水果有益健康特性的了解。
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