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1、胎兒生長受限與瘦素、胰島素樣生長因子.Ⅰ水平的相關(guān)性【關(guān)鍵詞】臍靜脈[摘要]目的研究胎兒生長受限(FGR)與瘦素、胰島素樣生長因子.Ⅰ(IGF.Ⅰ)的關(guān)系,探討臍血瘦素、IGF.Ⅰ的臨床檢測價(jià)值。方法采用放射免疫法檢測40例正常孕婦(對(duì)照組)和24例FGR孕婦(FGR組)的血清與臍血(臍A和臍V)中瘦素和IGF.Ⅰ水平,并對(duì)其結(jié)果進(jìn)行相關(guān)性分析。結(jié)果(1)FGR組血清瘦素及IGF.Ⅰ水平與對(duì)照組比較,差異無顯著性(P>0.05);(2)FGR組臍血瘦素和IGF.Ⅰ水平均明顯低于對(duì)照組(P<0.01,P<0.05)。(3)兩組孕婦血清瘦素和IGF.Ⅰ水平與臍血瘦素和IGF.Ⅰ水平無相關(guān)性(
2、r=0.129,r=-0.059,均P>0.05);臍血瘦素水平與新生兒出生體重呈正相關(guān)關(guān)系(r=0.600,P<0.05),與胎盤重量亦呈正相關(guān)關(guān)系(r=0.44,P<0.05);臍血IGF.Ⅰ水平與新生兒出生體重呈正相關(guān)關(guān)系(r=0.469,P<0.05),與胎盤重量無相關(guān)關(guān)系(r=0.30,P>0.05)。(4)臍A瘦素和IGF.Ⅰ水平與相應(yīng)臍V瘦素和IGF.Ⅰ水平差異無顯著性(P>0.05)。(5)臍血瘦素與IGF.Ⅰ水平無相關(guān)關(guān)系(r=0.397,P>0.05)。結(jié)論臍血瘦素和IGF.Ⅰ水平與胎兒生長發(fā)育狀態(tài)密切相關(guān);臍血瘦素或IGF.Ⅰ水平降低可能是FGR發(fā)生的原因之一;瘦素
3、調(diào)控胎兒生長發(fā)育沒有IGF.Ⅰ的直接參與;臍A與臍V血瘦素及IGF.Ⅰ水平均可作為評(píng)價(jià)胎兒生長發(fā)育的臨床指標(biāo)。[關(guān)鍵詞]瘦素;胰島素樣生長因子.Ⅰ;胎兒生長受限;臍動(dòng)脈;臍靜脈Therelationshipbetweenfetalgrowthreatrictionandlevelsofleptin,IGF.ⅠJIANGXiao-qing,WANGJing,YUHong(DepartmentofObstetricsandGynecology,ZhongdaHospital,SoutheastUniversity,Nanjing210009,China)Abstract:ObjectiveT
4、ostudytherelationshipbetweenfetalgrowthreatriction(FGR)andlevelsofleptin,insulin-likegrowthfactorI(IGF.Ⅰ).MethodsThelevelsofleptinandIGF.Ⅰinserumandcordbloodin24FGRpregnantwomen(FGRgroup)and40normalpregnantwomen(controlgroup)weremeasuredbyradioimmuno-assay(RIA)andtheresultsinbothgroupswereanalyze
5、d.Results1.ThedifferenceofthelevelsofleptinandIGF.ⅠinserumbetweenFGRgroupandcontrolgrouprevealednostatisticalsignificance(P>0.05).2.ThelevelsofleptinandIGF.ⅠincordbloodinFGRgroupwerenotablylowerthanthoseofcontrols(P<0.01;P<0.05).3.TheserumlevelsofleptinandIGF.Ⅰwerenotcorrelativetothecordbloodleve
6、lsofbothconstituentsintwogroups(r=0.129,r=-0.059,P>0.05);whereasthelevesofleptinincordbloodwerepositivelycorrelatedwithfetusbirthweightandplacentaweight(r=0.600,P<0.05;r=0.44,P<0.05).ApositivecorrelationexistedbetweenthelevelsofIGF.Ⅰincordbloodandthebirthweightoffetus(r=0.469,P<0.05),butanegative
7、cor-relationinplacentaweight(r=0.30,P>0.05).4.NocorrelationexistedbetweenleptinlevelsandIGF.Ⅰlevelsincordblood.ConclusionsThereductionofthelevelsofleptinandIGF.ⅠincordbloodinpregnantwomenwithFGRisrelativetodecreaseinbi