Iron status of elderly Americans.
Iron status of elderly Americans.
复制标题
美国老年人的铁状况。
DOI：
10.1093/ajcn/36.5.1032
复制
发表时间：
1982
期刊：
影响因子：
--
通讯作者：
J. Cook
中科院分区：
文献类型：
--
作者：
S. Lynch;C. Finch;E. Monsen;J. Cook
对老年人铁营养的研究很有限，很少包括对75岁以上的人的观察。美国卫生、教育和福利部进行的两项健康和营养检查调查表明，美国人的平均铁摄入量在75岁之前是足够的。然而，随着主要食物来源的变化，来自肉类的铁含量减少，早餐谷物供应的比例随之上升。由此可能导致的膳食铁生物利用度++的变化尚未被研究。生理数据表明，老年人并不代表缺铁的目标人群，因为铁的需求量不超过成年男子，低于儿童和经期妇女。此外，几乎没有直接证据表明老年人铁缺乏症患病率很高，但已被证明对确定年轻人铁状况有用的实验室测量尚未被标准化，也没有在老年人中广泛使用。贫血仍然是严重缺铁的最重要的已知后果。然而，将年轻人使用的Hb或红细胞压积标准应用于老年人，以及贫血可等同于缺铁的假设，使许多调查的结论无效。Hb和红细胞压积测量不是适合老年人缺铁的筛查试验，迫切需要更清楚地了解导致老年人，特别是老年黑人Hb值较低的生理和营养因素。
Studies of iron nutriture in the elderly are limited and very few include observations on individuals over the age of 75. The two Health and Nutrition Examination Surveys carried out by the United States Department of Health, Education and Welfare demonstrate that the mean iron intake of Americans is adequate until the age of 75. However, with changes in the major food sources there is a decrease in iron derived from meat and a concomitant rise in the proportion supplied by breakfast cereals. Alterations in dietary iron bioavailability++ that may result from this have not been studied. Physiological data suggest that the elderly do not represent a target population for iron deficiency since iron requirements are no greater than those of adult men and lower than those of children and menstruating women. Furthermore, there is little direct evidence of a high prevalence of iron deficiency in the elderly, but the laboratory measurements that have proved useful in defining iron status in younger people have not been standardized for or extensively used in older people. Anemia is still the most important known consequence of significant iron deficiency. However, the application of Hb or hematocrit standards used in younger people to the elderly as well as the assumption that anemia can be equated with iron deficiency invalidates the conclusions of many surveys. Hb and hematocrit measurements are not suitable screening tests for iron deficiency in the elderly and there is an urgent need for a clearer understanding of the physiological and nutritional factors responsible for lower Hb values in older people, particularly older Blacks.
遗传性血色素沉着症：遗传分析的贡献。
DOI：
--
发表时间：
1981
期刊：
Progress in hematology
影响因子：
--
作者：
Edwards,CQ;Skolnick,MH;Kushner,JP
通讯作者：
Kushner,JP
健康老年人群的营养状况：饮食和补充摄入量。
DOI：
10.1093/ajcn/36.2.319
发表时间：
1982
期刊：
The American journal of clinical nutrition
影响因子：
--
作者：
Garry,PJ;Goodwin,JS;Hunt,WC;Hooper,EM;Leonard,AG
通讯作者：
Leonard,AG