Unchanged iron and copper and increased zinc in the blood of obese children after two hypocaloric diets
Unchanged iron and copper and increased zinc in the blood of obese children after two hypocaloric diets
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DOI：
10.1007/bf02778192
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发表时间：
1997-05-01
影响因子：
3.9
通讯作者：
Perrone, L
中科院分区：
文献类型：
--
作者：
DiToro, A;Marotta, A;Perrone, L
测定了55例肥胖儿童青少年(男28例，女27例)在低热量平衡饮食(HCBD，22例)和低蛋白饮食(PSMF，33例)治疗13周前后的血清铁(SFE)、铁蛋白(SFert)、转铁蛋白饱和指数(TSI)、血浆锌、铜(PZn，PCU)和红细胞锌含量(e锌)。HCBD和PSMF饮食提供的能量摄入量分别为推荐的年龄和性别膳食摄入量(RDA)的60%和25%。两种饮食都没有添加微量元素或钙。使用视觉记忆系统，所有受试者在开始减肥计划之前都有24小时的饮食摄入回忆。24小时召回的铁、锌和铜的摄入量与规定饮食中的铁、锌和铜的摄入量进行了比较。两种饮食都显著减轻了(P<；0.001)体重，并显著减少了PSMF组的手臂肌肉面积。治疗后，两组的SFE、SFERT和TSI均无明显变化，但两组的e锌均显著升高(P=0.001和P<0.066)，红细胞指数(E.I.)也有改善。PSMF组的PZN也显著增加(p=0.007)，与正常摄入量相比，HCBD提供的铁更少(p=0.04)，铜更多(p=0.001)，而PSMF提供更多的锌(p=0.026)。
Serum iron (sFe), and ferritin (sFert), transferrin saturation index (TSI), plasma zinc and copper (pZn, pCu), and erythrocyte zinc content (eZn) were measured in 55 obese children and adolescents (28 males and 27 females) before and after a 13-wk treatment with a hypocaloric balanced diet (HCBD, 22 subjects) or a 10-wk treatment with a protein sparing modified fast diet (PSMF, 33 subjects). The energy intake provided by the HCBD and PSMF diet was calculated to be 60 and 25%, respectively, of the recommended dietary allowances (RDAs) for age and sex. Neither diet was supplemented with trace elements or calcium.Using a visual memory system, all subjects had a 24-h dietary intake recall before starting the weight-loss program. Iron, zinc, and copper intakes from the 24-h recall were compared with those from prescribed diets.Both diets produced a significant (p < 0.001) weight reduction with a significant reduction in the arm muscle area of the PSMF group. After treatment, no significant change was observed in sFe, sFert, and TSI of either group, whereas eZn increased significantly in the HCBD and the PSMF groups (p = 0.001 and p < 0.066, respectively), with an improvement of the erythrocyte index (E.I.). A significant increase in pZn was also observed in the PSMF group (p = 0.007).When compared with the usual intakes, HCBD supplied less iron (p = 0.04) and more copper (p = 0.001), whereas PSMF provided more zinc (p = 0.026).