Vitamin A deficiency can occur during lactation and breast-milk vitamin A has been recommended for monitoring the vitamin A status of lactating women and their infants. This study aimed to investigate the vitamin A status of lactating women in relation to race, age, parity, duration of lactation and anthropometric status. A cross-sectional study was conducted among 262 lactating women in rural Chiang Mai, Thailand. Blood and breast-milk samples were collected. Serum retinol, carotene and breast-milk retinol concentrations were analysed by high-performance liquid chromatography. The results show that mean serum retinol and breast-milk retinol in hill tribes were significantly lower than in Thais, 1.91 (0.59) and 0.79 (0.52) compared with 2.10 (0.51) and 1.04 (0.58) mumol/L, respectively. Mean serum retinol and breast-milk retinol were highest during the 1st 3 months of lactation. Maternal age, parity and anthropometric status (BMI) were not associated with serum or breast-milk retinol concentrations. There was a significant relationship between serum and breast-milk retinol values in women who breastfed for 6 months or longer (regression co-efficients 0.30; 95% CI 0.16, 0.43). Breast-milk retinol levels declined significantly from 4 to 12 months after delivery, which could increase the risk of vitamin A deficiency in children who were exclusively breastfed or receiving inappropriate complementary foods during this period. Weaning foods which commence at 6 months and have an adequate vitamin A content should ensure that the vitamin A status of the young child is maintained.

译文

维生素a缺乏症可能发生在哺乳期,母乳维生素a已被推荐用于监测哺乳期妇女及其婴儿的维生素a状况。这项研究旨在调查哺乳期妇女的维生素a状况与种族,年龄,胎次,哺乳期和人体测量状况的关系。在泰国清迈农村的262名哺乳期妇女中进行了一项横断面研究。收集血液和母乳样本。通过高效液相色谱法分析血清视黄醇,胡萝卜素和母乳视黄醇的浓度。结果表明,山地部落的平均血清视黄醇和母乳视黄醇显着低于泰国人,1.91 (0.59) 和0.79 (0.52),分别低于2.10 (0.51) 和1.04 (0.58) mumol/L。哺乳期前3个月的平均血清视黄醇和母乳视黄醇最高。产妇年龄,胎次和人体测量状态 (BMI) 与血清或母乳视黄醇浓度无关。母乳喂养6个月或更长时间的妇女的血清和母乳视黄醇值之间存在显着关系 (回归系数0.30; 95% CI 0.16,0.43)。母乳视黄醇水平在分娩后4至12个月内显著下降,这可能会增加在此期间纯母乳喂养或接受不适当辅食的儿童维生素a缺乏症的风险。从6个月开始并具有足够维生素a含量的断奶食品应确保维持幼儿的维生素a状态。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录