INTERACTIONS AMONG DIETARY MANGANESE, HEME IRON, AND NONHEME IRON IN WOMEN
INTERACTIONS AMONG DIETARY MANGANESE, HEME IRON, AND NONHEME IRON IN WOMEN
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DOI：
10.1093/ajcn/56.5.926
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发表时间：
1992-11-01
影响因子：
7.1
通讯作者：
GREGER, JL
中科院分区：
文献类型：
--
作者：
DAVIS, CD;MALECKI, EA;GREGER, JL
本文对47名典型膳食的妇女进行了血红素铁、非血红素铁和锰的膳食摄入量与血液学和营养状况指标的关系。通过在饮食中消耗更多的非血红素铁来增加膳食铁摄入量，对血液学状态（红细胞压积值和铁蛋白和转铁蛋白浓度）和锰营养状况（血清锰、尿锰和淋巴细胞锰依赖性超氧化物歧化酶活性）产生可疑影响。相反，血红素铁摄入量与血液学状态呈正相关，对锰的营养状况没有一致的影响。饮食中锰摄入量的差异对锰或铁状态的指数没有一致的影响，这可能是因为含有大量锰的食物（绿色蔬菜、面包和谷物）通常含有大量的非血红素铁。因此，通过食用这些食物来增加膳食锰摄入量对锰状况的影响有限，因为非血红素铁和锰之间存在相互作用。
The relationship among dietary intake of heme iron, nonheme iron, and manganese on indexes of hematological and nutritional status in regard to manganese of 47 women consuming their typical diets was investigated. Increasing dietary iron intake, by consuming more nonheme iron in the diet, had questionable effects on hematological status (hematocrit values and ferritin and transferrin concentrations) and negative effects on nutritional status in regard to manganese (serum manganese, urine manganese, and lymphocyte manganese-dependent superoxide dismutase activity). In contrast, heme-iron intake was positively correlated with hematological status and had no consistent effect on nutritional status in regard to manganese. Differences in dietary manganese intake had no consistent effect on indices of manganese or iron status, possibly because foods that contain significant amounts of manganese (green vegetables, breads, and cereals) often contain significant amounts of nonheme iron. Thus, increasing dietary manganese intake by consuming these foods is apt to have limited impact on manganese status because of the interaction between nonheme iron and manganese.