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首页> 外文期刊>Asian Pacific Journal of Cancer Prevention >Actual Daily Intakes of Tea Catechins and Thier Estimation According to Four Season 3 Day Weighed Dietary Records and a Short Food Frequency Questionnaire among Japanese Men and Women
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Actual Daily Intakes of Tea Catechins and Thier Estimation According to Four Season 3 Day Weighed Dietary Records and a Short Food Frequency Questionnaire among Japanese Men and Women

机译：根据日本男性和女性的四个季节3天称重饮食记录和短期食物频率调查表，茶儿茶素的实际每日摄入量及其估计

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Background: Tea catechins are considered to be important preventive factors of cancer on several organs; however, the relationships of the actual daily intakes (ADIs) on the preventive effects have not been adequately addressed. We measured the ADIs of tea catechins as annual averages derived from every their ingested cups recorded by each subject, and the estimation models were established considering tea origin. Methods: Fifty-nine Japanese men and women completed four season 3 day weighed dietary records (WDRs) and a food frequency questionnaire (FFQ), and samples of green, oolong and black teas, ingested during a total 12 days were collected for the analysis. The ADIs of the total and composed catechins of all tea samples were measured by a high-performance liquid chromatography. The estimation models for the ADIs (R2: coefficient of determination) based on the WDRs and FFQ were established with multiple regression analysis using appropriate confounding factors. Results: The ADIs of total catechins and epigallocatechin gallate (EGCg) were 110 and 21.4 mg/day in men and 157 and 34.7 mg/day in women, respectively. The total catechins ADIs were positively associated with green tea consumption based on WDRs and FFQ (adjusted R2 =0.421 and 0.341 for men and 0.346 and 0.238 for women, pConclusions: We revealed the ADIs of total catechins and EGCg as annual averages could establish their estimation models. These provide reference information to clarify their relationships with cancer risks.
机译：背景：茶儿茶素被认为是预防某些器官癌变的重要因素。但是，实际每日摄入量（ADIs）与预防效果的关系尚未得到充分解决。我们将茶儿茶素的ADIs作为每位受试者记录的每个摄入杯子的年度平均值进行测量，并建立了考虑茶源的估计模型。方法：59名日本男性和女性完成了第4季3天的体重饮食记录（WDR）和食物频率问卷（FFQ），并收集了总共12天摄入的绿茶，乌龙茶和红茶样品进行分析。通过高效液相色谱法测定所有茶叶样品中总儿茶素和儿茶素的ADIs。使用适当的混杂因素，通过多元回归分析，建立了基于WDR和FFQ的ADI估计模型（R2：确定系数）。结果：男性总儿茶素和表没食子儿茶素没食子酸酯（EGCg）的ADIs分别为110和21.4 mg /天，女性为157和34.7 mg /天。基于WDR和FFQ，儿茶素的总ADIs与绿茶消费量呈正相关（男性的R2分别为0.421和0.341，女性的R2 = 0.346和0.238，p结论：我们揭示了总儿茶素和EGCg的ADIs，因为年度平均值可以确定其估计值这些模型提供参考信息，以阐明它们与癌症风险的关系。

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