机构地区:[1]四川省成都市妇女儿童中心医院儿童保健指导中心,成都610031 [2]四川省成都市青白江区妇幼保健院预防保健科,成都610300 [3]四川省成都市金牛区妇幼保健院儿童保健科,成都610081 [4]四川省成都市大邑县妇幼保健院儿童保健科,成都611300 [5]四川省成都市成华区妇幼保健院儿童保健科,成都610051 [6]四川省眉山市东坡区妇幼保健院儿科,眉山620010 [7]四川省成都市新都区妇幼保健院儿童保健科,成都610500 [8]浙江贝因美科工贸股份有限公司,杭州310053 [9]四川大学华西第二医院教育部妇儿疾病与出生缺陷重点实验室,成都610041
出 处:《中国循证儿科杂志》2013年第6期420-424,共5页Chinese Journal of Evidence Based Pediatrics
摘 要:目的了解添加强化乳铁蛋白(LF)配方奶粉对婴儿生长发育和铁代谢的影响。方法本研究为前瞻性多中心非随机对照试验,生后以人乳喂养的4—6月龄健康足月儿自愿添加配方奶粉者纳入本研究,按门诊顺序分别纳入强化组(LF38mg·100g^-1,铁元素4mg·100g^-1)和对照组(LF0,铁元素4.2mg·100g^-1,其余成分与强化组相同)。两组干预时间均为3个月。两组婴儿在干预前后分别测定身长、体重、头围、Hb、血清铁蛋白(sF)、血清转铁蛋白受体(sTIR);同时计算TFR—F指数、机体总铁含量(TBIC)、年龄别身高z评分(HAZ)、年龄别体重Z评分(WAZ)、身高别体重Z评分(WHZ),比较上述指标的干预前后和组间差异。结果213名婴儿完成了研究,强化组115名,对照组98名。强化组和对照组婴儿人均日摄入配方奶粉量(94.3±9.8)US(88.2±8.7)g,P〉0.05;人均日铁剂摄入量(3.8±0.4)vs(3.7-4-0.6)mg,P〉0.05。强化组人均日LF摄入量为(35.8±3.7)mg。强化组与对照组干预后各指标改变值比较,体重:(2213±82)VS(20334-77)g,WAZ:(0.82±0.22)US(-0.05±0.01),WHZ:(0.74±0.32)VS(0.20±0.06),Hb:(13.9±4.1)vs(7.2±1.8)g·L^-1,SF:(1.37±0.08)vs(0.55±0.04)μg·L^-1,TFR—F指数:(0.86±0.11)vs(0.39±0.05),TBIC:(19.4±8.8)郴(9.1±3.4)mg·kg^-1,P均〈0.05。同时干预后强化组贫血、铁缺乏和缺铁性贫血检出率均显著低于对照组,贫血:4.1%vs7.5%,铁缺乏:13.9%vs24.4%,缺铁性贫血:1.7%vs8.2%,P均〈0.05。结论添加强化LF配方奶粉干预可以显著改善人乳喂养婴儿生长发育以及铁营养状况。Objective To explore the effect of lactoferrin fortified formula milk for infants with breastfeeding on growth and development and iron metabolic homeostasis. Methods In this prospective multi-center controlled intervention study , a total of 260 infants aged 4-6 months old were selected from six maternal and children's health care hospitals. All subjects were divided into two groups with the sequence of outpatient: laetoferrin fortified formula milk group ( fortified group, FG, containing laetoferrin 38 mg · 100 g^-l milk and iron element 4 mg· 100 g^-1 milk) and no laetoferrin fortified milk group( control group, CG, containing laetoferrinO mg/100g milk and iron element 4.2 · 100 g^-1 milk) for 3 months. The levels of weight, height and head circumference and the concentration of hemoglobin (Hb), serum ferritin (SF), serum transferring receptor (sTfR) were measured and sTfR-SF index (TFR-F index) , total body iron content (TBIC) and HAZ, WAZ and WHZ were computed before and after intervention, respectively. Results A total of 213 (including 115 in FG, and 98 in C G) infants were completed the intervention trial and all the ts of biochemical indicators. There was no significant difference in the average amount of daily intake of formula milk [ (94. 3 ± 9.8 ) g vs ( 88.2 ± 8.7 ) for FG and CG, P 〉 0. 05 ] and iron element [ (3.8 ± 0. 4 ) mg vs ( 3.7 ± 0. 6 ) mg for FG and CG, P 〉 0. 05 ] between FG and CG. The average amount of dail,, intake of lactoferrin for infants in FG group was ( 35.8 ± 3.7 ) rag. The levels of weight, WAZ, WHZ, Hb, SF, TFR-F index and TBIC of infants after intervention in FG were all significantly higher than those of infants in CG. The changes of index were (2 213 ±82) vs (2 033 +77) g for weight, (0. 82 ± 0.22) vs (-0.05±0.01) for WAZ, (0.74±0.32) vs (0.20±0.06) for WHZ, (13.9±4.1) vs (7.2+1.8) g·L^-l for Hb, (1.37±0.08) vs (0.55±0.04)μg·L^-1 for SF, (0.86±0.11)
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