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首页> 外文期刊>The British Journal of Nutrition >Consumption of blueberries with a high-carbohydrate, low-fat breakfast decreases postprandial serum markers of oxidation.
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Consumption of blueberries with a high-carbohydrate, low-fat breakfast decreases postprandial serum markers of oxidation.

机译：食用高碳水化合物，低脂早餐的蓝莓可以减少餐后血清氧化的标志。

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摘要

We sought to determine whether consumption of blueberries could reduce postprandial oxidation when consumed with a typical high-carbohydrate, low-fat breakfast. Participants (n 14) received each of the three treatments over 3 weeks in a cross-over design. Treatments consisted of a high blueberry dose (75 g), a low blueberry dose (35 g) and a control (ascorbic acid and sugar content matching that of the high blueberry dose). Serum oxygen radical absorbance capacity (ORAC), serum lipoprotein oxidation (LO) and serum ascorbate, urate and glucose were measured at fasting, and at 1, 2 and 3 h after sample consumption. The mean serum ORAC was significantly higher in the 75 g group than in the control group during the first 2 h postprandially, while serum LO lag time showed a significant trend over the 3 h for both blueberry doses. Changes in serum ascorbate, urate and glucose were not significantly different among the groups. To our knowledge, this is the first report that has demonstrated that increased serum antioxidant capacity is not attributable to the fructose or ascorbate content of blueberries. In summary, a practically consumable quantity of blueberries (75 g) can provide statistically significant oxidative protection in vivo after a high-carbohydrate, low-fat breakfast. Though not tested directly, it is likely that the effects are due to phenolic compounds, either directly or indirectly, as they are a major family of compounds in blueberries with potential bioactive activity
机译：我们试图确定食用蓝莓与典型的高碳水化合物，低脂早餐一起食用是否能减少餐后氧化。参加者（14名）在3周内采用交叉设计接受了这三种治疗。处理包括高剂量蓝莓（75 g），低剂量蓝莓（35 g）和对照（抗坏血酸和糖含量与高剂量蓝莓匹配）。在禁食时以及进食后1、2和3小时，测量血清氧自由基吸收能力（ORAC），血清脂蛋白氧化（LO）以及血清抗坏血酸盐，尿酸盐和葡萄糖。餐后前2 h，75 g组的平均血清ORAC显着高于对照组，而两种蓝莓剂量的3 h血清LO滞后时间均显示出显着趋势。各组之间血清抗坏血酸盐，尿酸盐和葡萄糖的变化无明显差异。据我们所知，这是第一份证明血清抗氧化能力增强并非归因于蓝莓的果糖或抗坏血酸含量的报告。总之，在食用高碳水化合物，低脂的早餐后，实际上可食用的蓝莓量（75克）可以在体内提供统计学上显着的氧化保护。尽管未经直接测试，但其作用可能是直接或间接地由酚类化合物引起的，因为它们是蓝莓中的主要化合物类，具有潜在的生物活性

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