Baidu
map

Am J Clin Nutr:摄入多少FA补充剂能保证准妈妈们的叶酸需求?

2017-06-08 李潇潇 吴刚 环球医学

2017年5月,发表在《Am J Clin Nutr》的一项由加拿大科学家进行的研究,调查了加拿大女性乳汁中总叶酸和未代谢叶酸的含量,得出了摄入FA补充剂的适度剂量。

2017年5月,发表在《Am J Clin Nutr》的一项由加拿大科学家进行的研究,调查了加拿大女性乳汁中总叶酸和未代谢叶酸的含量,得出了摄入FA补充剂的适度剂量。

背景:妊娠期和哺乳期的叶酸需求在增加。建议备孕、怀孕或正在哺乳的女性摄入含叶酸(FA)的补充剂。

目的:旨在入组到MIREC(产妇婴儿环境化学物质的研究)研究的加拿大母亲队列中,确定母乳中总叶酸和未代谢叶酸(UMFA)的含量,及其与FA补充剂的使用和剂量之间的相关性。

设计:使用液相质谱联的方法检测母乳四氢叶酸(THF)、5-甲基-THF、5-甲酰基-THF、5、10-甲叉亚甲基-THF和UMFA(n=561)。每日总补充FA的摄入基于自我报告的FA补充剂的使用。

结果:96.1%女性的乳汁中可检测到UMFA。每天从补充剂中FA的总摄入与乳汁叶酸浓度和种类相关。补充剂使用者(401人)比不使用者(160人)的乳汁总叶酸浓度高18%(P<0.001),该差异由摄入>400μg FA/d的女性造成(P≤0.004)。补充剂使用者比不使用者的5-甲基-THF低19%(P<0.001),UMFA高126%(P<0.001)。摄入>400μg FA/d的女性比摄入≤400μg FA/d的女性的5-甲基-THF相应降低,UMFA相应升高。

结论:FA补充剂的使用与乳汁总叶酸适度增加相关。可检测到的乳汁UMFA几乎普遍存在,包括未摄入FA补充剂的女性。摄入>400μg FA/d的女性,其乳汁UMFA相应的比5-甲基-THF高,因此表明,较高的剂量超过了FA的生理代谢能力,造成母乳中FA优先摄取。因此,FA补充剂的剂量>400μg并不推荐,尤其是强制性强化补充FA的人群。

原始出处:

Page R, Robichaud A, et al. Total folate and unmetabolized folic acid in the breast milk of a cross-section of Canadian women. Am J Clin Nutr. 2017 May;105(5):1101-1109. doi: 10.3945/ajcn.116.137968. 

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=2069494, encodeId=ca962069494da, content=<a href='/topic/show?id=71de3120157' target=_blank style='color:#2F92EE;'>#准妈妈#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=31201, encryptionId=71de3120157, topicName=准妈妈)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9d8a96, createdName=doctorzheng, createdTime=Mon May 07 15:42:00 CST 2018, time=2018-05-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208421, encodeId=f2f5208421bc, content=剂量是要确定的。, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Fri Jun 09 06:49:21 CST 2017, time=2017-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208306, encodeId=639d20830609, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Thu Jun 08 22:33:37 CST 2017, time=2017-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208233, encodeId=f65a20823384, content=学习了,涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Thu Jun 08 18:02:01 CST 2017, time=2017-06-08, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=2069494, encodeId=ca962069494da, content=<a href='/topic/show?id=71de3120157' target=_blank style='color:#2F92EE;'>#准妈妈#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=31201, encryptionId=71de3120157, topicName=准妈妈)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9d8a96, createdName=doctorzheng, createdTime=Mon May 07 15:42:00 CST 2018, time=2018-05-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208421, encodeId=f2f5208421bc, content=剂量是要确定的。, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Fri Jun 09 06:49:21 CST 2017, time=2017-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208306, encodeId=639d20830609, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Thu Jun 08 22:33:37 CST 2017, time=2017-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208233, encodeId=f65a20823384, content=学习了,涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Thu Jun 08 18:02:01 CST 2017, time=2017-06-08, status=1, ipAttribution=)]
    2017-06-09 惠映实验室

    剂量是要确定的。

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=2069494, encodeId=ca962069494da, content=<a href='/topic/show?id=71de3120157' target=_blank style='color:#2F92EE;'>#准妈妈#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=31201, encryptionId=71de3120157, topicName=准妈妈)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9d8a96, createdName=doctorzheng, createdTime=Mon May 07 15:42:00 CST 2018, time=2018-05-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208421, encodeId=f2f5208421bc, content=剂量是要确定的。, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Fri Jun 09 06:49:21 CST 2017, time=2017-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208306, encodeId=639d20830609, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Thu Jun 08 22:33:37 CST 2017, time=2017-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208233, encodeId=f65a20823384, content=学习了,涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Thu Jun 08 18:02:01 CST 2017, time=2017-06-08, status=1, ipAttribution=)]
    2017-06-08 dhzzm

    学习了分享了

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=2069494, encodeId=ca962069494da, content=<a href='/topic/show?id=71de3120157' target=_blank style='color:#2F92EE;'>#准妈妈#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=31201, encryptionId=71de3120157, topicName=准妈妈)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9d8a96, createdName=doctorzheng, createdTime=Mon May 07 15:42:00 CST 2018, time=2018-05-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208421, encodeId=f2f5208421bc, content=剂量是要确定的。, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Fri Jun 09 06:49:21 CST 2017, time=2017-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208306, encodeId=639d20830609, content=学习了分享了, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=387d1660055, createdName=dhzzm, createdTime=Thu Jun 08 22:33:37 CST 2017, time=2017-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=208233, encodeId=f65a20823384, content=学习了,涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Thu Jun 08 18:02:01 CST 2017, time=2017-06-08, status=1, ipAttribution=)]
    2017-06-08 1ddf0692m34(暂无匿称)

    学习了,涨知识

    0

相关资讯

Mol Psychiatry:雄性补充叶酸会拉低后代智商!

现在很多备孕妈妈都知道怀孕期间要补充叶酸,不仅如此,很多人还认为孕前准爸爸也需要补叶酸。但最新的研究显示,雄性动物如果摄入过多富含甲基的食物,可能对后代的智商产生负面影响!

J Hypertens:降压同时添加叶酸降低肾病相关死亡风险

日发布的CSPPT亚组研究数据显示,大量蛋白尿以及肾小球滤过率降低显着增加高血压患者的死亡风险。

Neurology:叶酸补充可以减少中风的危险

他汀类药物使用率低的高血压患者,低剂量的叶酸补充对中风的预防效果最佳

Am J Clin Nutr: 高血压患者补充叶酸可降低血尿酸

背景:补充叶酸对尿酸(UA)浓度的影响目前还没有定论。目的:研究者旨在检测高血压患者叶酸治疗降低血清UA的有效性设计:15364例高血压患者被随机分配两组,一组服用含有10毫克依那普利和0.8毫克叶酸(n = 7685)或另外一组服用10毫克依那普利(n = 7679)。主要结果是血清UA的变化,即随访UA值减去基线 UA。次要结果如下:1)控制高尿酸(治疗后UA浓度<357μmol/L)2)尿酸

Neurology:哪些情况下叶酸预防卒中的效果更佳?

2017年5月,《Neurology》发表了一项叶酸预防卒中的有效性的荟萃分析。目的:基于相关、最新发表的随机试验,考察在没有叶酸强化的地区,补充叶酸预防卒中的有效性和影响因素。方法:在固定效应模型中,使用相对风险(RR)测量叶酸补充剂对卒中风险的影响。结果:总体而言,叶酸补充剂显着降低11%的卒中风险(22项试验,n=82723;RR 0.89,95% 置信区间[CI] 0.84~0.96)。与

J Hypertens:叶酸治疗降低大量蛋白尿的高血压患者死亡风险!

由此可见,在没有主要心血管疾病史的高血压患者中,叶酸治疗可以降低重度蛋白尿患者相关的死亡风险。

Baidu
map
Baidu
map
Baidu
map