Background: The consumption of dietary supplements (DS) has increased by almost 10% last decade. This trend may be true also for pregnant women;however, it was reported that pregnant women do not sufficient and correc...Background: The consumption of dietary supplements (DS) has increased by almost 10% last decade. This trend may be true also for pregnant women;however, it was reported that pregnant women do not sufficient and correct knowledge on nutritional needs during pregnancy. Thus, we here attempted to determine the French situation of how French pregnant women take DS and its social-clinical significance using questionnaires, with special reference to vitamin D (VD) overtaking. Materials and Methods: A prospective multi-centric study was performed in three maternities in Paris. One hundred-fifty questionnaires were administered to pregnant women by midwife. Results: Thirty-four patients were interviewed at the maternity ward of the Deaconesses, 61 at the Pitié-Salpêtrière and 55 at Armand Trousseau. During pregnancy, DS started mainly during the first trimester. Frequently, doctors initially prescribe them and women tended to continue to take them thereafter. Possible VD overdosage was observed. Conclusion: We here characterized French pregnant women in terms of DS during pregnancy and also, to our knowledge, for the first time emphasized the risk of vitamin D overdose during pregnancy in France. However, since the cumulative dose throughout the pregnancy was not determined here, definite conclusion of whether women really take overdose of this supplement may not be made. Women of higher socio-professional society tended to consume more DS during pregnancy, and, thus, further monitoring may be needed especially to this fraction of pregnant women.展开更多
研究了γ射线辐照对鲜切蔬菜的重要评价指标——维生素C和亚硝酸盐的影响。结果表明:辐照对苦瓜和圣女果中维生素C的影响不明显;2.32 k Gy剂量辐照能使鲜切圆生菜、彩椒和紫甘蓝的维生素C含量分别下降45%,34%和45%。辐照能明显降低三者...研究了γ射线辐照对鲜切蔬菜的重要评价指标——维生素C和亚硝酸盐的影响。结果表明:辐照对苦瓜和圣女果中维生素C的影响不明显;2.32 k Gy剂量辐照能使鲜切圆生菜、彩椒和紫甘蓝的维生素C含量分别下降45%,34%和45%。辐照能明显降低三者贮藏期间维生素C的下降速率。辐照对鲜切黄瓜和水萝卜的亚硝酸盐基本上无影响,1.81 k Gy剂量辐照能使鲜切苦瓜和彩椒的亚硝酸盐含量分别由未辐照组的0.77 mg/kg和0.12 mg/kg升至1.03 mg/kg和0.35 mg/kg。辐照对鲜切蔬菜贮藏期间亚硝酸盐含量无显著影响。展开更多
文摘Background: The consumption of dietary supplements (DS) has increased by almost 10% last decade. This trend may be true also for pregnant women;however, it was reported that pregnant women do not sufficient and correct knowledge on nutritional needs during pregnancy. Thus, we here attempted to determine the French situation of how French pregnant women take DS and its social-clinical significance using questionnaires, with special reference to vitamin D (VD) overtaking. Materials and Methods: A prospective multi-centric study was performed in three maternities in Paris. One hundred-fifty questionnaires were administered to pregnant women by midwife. Results: Thirty-four patients were interviewed at the maternity ward of the Deaconesses, 61 at the Pitié-Salpêtrière and 55 at Armand Trousseau. During pregnancy, DS started mainly during the first trimester. Frequently, doctors initially prescribe them and women tended to continue to take them thereafter. Possible VD overdosage was observed. Conclusion: We here characterized French pregnant women in terms of DS during pregnancy and also, to our knowledge, for the first time emphasized the risk of vitamin D overdose during pregnancy in France. However, since the cumulative dose throughout the pregnancy was not determined here, definite conclusion of whether women really take overdose of this supplement may not be made. Women of higher socio-professional society tended to consume more DS during pregnancy, and, thus, further monitoring may be needed especially to this fraction of pregnant women.
文摘研究了γ射线辐照对鲜切蔬菜的重要评价指标——维生素C和亚硝酸盐的影响。结果表明:辐照对苦瓜和圣女果中维生素C的影响不明显;2.32 k Gy剂量辐照能使鲜切圆生菜、彩椒和紫甘蓝的维生素C含量分别下降45%,34%和45%。辐照能明显降低三者贮藏期间维生素C的下降速率。辐照对鲜切黄瓜和水萝卜的亚硝酸盐基本上无影响,1.81 k Gy剂量辐照能使鲜切苦瓜和彩椒的亚硝酸盐含量分别由未辐照组的0.77 mg/kg和0.12 mg/kg升至1.03 mg/kg和0.35 mg/kg。辐照对鲜切蔬菜贮藏期间亚硝酸盐含量无显著影响。
