摘要
追踪调查了９００余名孕妇在妊娠早、晚期维生素Ａ、Ｅ、Ｂ１、Ｂ２及维生素Ｃ的摄入情况。并对其中４００余例孕妇孕中、晚期血清和新生儿脐血清维生素Ａ、Ｅ、Ｃ含量、全血谷胱甘肽还原酶活性系数（ＡＣ）、全血红细胞转酮醇酶效应值（ＴＰＰ％）进行了测定。结果发现维生素的摄入量于孕中期，除维生素Ａ和维生素Ｂ１分别为ＲＤＡ的６０％和６４．８％外，其余均达ＲＤＡ的８０％以上；孕晚期除维生素Ｂ１仍为ＲＤＡ的６４％外，其余均达ＲＤＡ的９０％以上。血液测定结果，维生素Ａ、Ｅ的量随孕期延续而上升，有９５％以上孕妇在参考标准范围以上。脐血中的维生素Ａ、Ｅ均比孕晚期含量低，分别为１１．２５±０．６２和（１２．６４±６．０４）μｍｏｌ／Ｌ；血清维生素Ｃ均超过８５μｍｏｌ／Ｌ，孕中、晚期和脐血含量分别为１２５．０３±３８．８１、１０７．９１±３５．７７和（１０５．４１±４３．９５）μｍｏｌ／Ｌ；ＡＣ值均低于１．３，孕中、晚期及脐血分别为１．１４±０．１５、１．１４±０．１２和１．１３±０．４３；ＴＰＰ值均高于２５％，孕中、晚期及脐血分别为３６．８２±３１．２１、２９．２９±２５．２８和（３８．５５±３８．２２）％。提示，孕妇维生素Ａ、Ｅ、Ｂ２?
hetotalintakesofvitaminsA,E,B1,B2andCof900pregnantwomeninearlyandlatepregnancywereinvestigated.VitaminsA,E,CandAC(ActivityCocefficient)andTPP(TransketolasePyrophosphate)intheseraof400pregnantwomeninmiddleandlatepregnancyandnewbornchildrenweredeterminated.Theresultsshowedthatthetotalintakesofvitaminsaccountedfor80%ofRDA(Recom-mendedDietaryAlowance)inthemiddlepregnancyexceptvitaminsAandB1,whichmadeup60%and64.4%ofRDA,respectively.Inlatepregnancy,theRDAwasmorethan90%formostvitaminsexceptforvitB1,whichwas64%.ItwasdemonstratedthatthelevelsofvitaminsAandEwereincreasedwiththelengthsofpregnancyandwereoverthestandardlevelsinmorethan90%pregnantwomen.Thecontentsinnavelbloodwerelowerthanthatinlatepregnancy.Theywere11.25±0.62and(12.64±6.04)μmol/L,respectively.Inmiddleandlatepregnancyandnavelblood,althelevelsofvitCandTPPwerehigherthan85μmol/Land25%,respectively,andalACwerelowerthan1.3:serumvitCwere125.03±38.81,107.9±35.9and(105.41±43.95)μmol/L;TPPwere36.82±31.21,29.29±25.28and38.55±38.22;ACwere1.14±0.15,1.14±0.12and1.13±0.43.ItwasconcludedthatvitaminsA,E,B2(AC<1.2)andCweresuficientinpregnantwomen,whilevitB1wasinsuficient(TPP>25%).
出处
《卫生研究》
CAS
CSCD
北大核心
1996年第6期354-357,共4页
Journal of Hygiene Research
基金
国家"八五"攻关项目
