title: [Expression of lethal gene mRNA on placenta villi in patients with spontaneous abortion].
abstract: OBJECTIVE
  To study the role of lethal gene: including retinoic X receptor (RXR)alpha, N-myc and transcript enhancer factor (TEF)-1 in human spontaneous abortion.
  
  
  METHODS
  The levels of RXRalpha, N-myc and TEF-1 mRNA expression on placenta villi from 38 spontaneous abortion women and 33 normal early pregnant women were examined by reverse transcription, polymerase chain reaction.
  
  
  RESULTS
  (1) The levels of RXRalpha mRNA on placenta villi from the abortion group were significantly decreased as compared with those from normal group (0.4 +/- 0.3 versus 0.6 +/- 0.3, P < 0.05); There were no significant differences in the levels of N-myc mRNA expression between the abortion group and normal group (2.1 +/- 1.2 versus 2.2 +/- 0.9, P > 0.05). The levels of TEF-1 mRNA on placenta from abortion group were significantly lower than those from normal group (1.6 +/- 1.1, 2.3 +/- 1.2, P < 0.05); (2) The levels of RXR alpha mRNA, TEF-1 mRNA in recurrent abortion group were significantly lower than those from non-recurrent group (0.3 +/- 0.2 versus 0.6 +/- 0.4, P < 0.05, 1.0 +/- 1.1 versus 1.9 +/- 1.2, P < 0.05).
  
  
  CONCLUSIONS
  It was suggested that the lower expression of RXR alpha mRNA, TEF-1 mRNA may play an important role in the pathogenesis of spontaneous abortion especially in recurrent abortion.
authors.affiliation: Department of Obstetrics and Gynecology, Renji Hospital, Second Medical College in Shanghai, Shanghai 200001, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Qide
authors.initials: Q
authors.lastname: Lin
authors.forename: Xipeng
authors.initials: X
authors.lastname: Wang
authors.forename: Peihua
authors.initials: P
authors.lastname: Lu
authors.forename: Zhongyi
authors.initials: Z
authors.lastname: Sheng
authors.forename: Chuanwei
authors.initials: C
authors.lastname: Ding
authors.forename: Yan
authors.initials: Y
authors.lastname: Hong
authors.forename: Weiping
authors.initials: W
authors.lastname: Li
mesh_terms: D000026:Abortion, Habitual / Q000235:genetics; D000022:Abortion, Spontaneous / Q000235:genetics*; D000328:Adult; D004268:DNA-Binding Proteins / Q000235:genetics*; D005260:Female; D015870:Gene Expression; D016259:Genes, myc / Q000235:genetics*; D006801:Humans; D009687:Nuclear Proteins; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism*; D018168:Receptors, Retinoic Acid / Q000235:genetics*; D047488:Retinoid X Receptors; D020133:Reverse Transcriptase Polymerase Chain Reaction; D000091262:TEA Domain Transcription Factors; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D004268:DNA-Binding Proteins; D009687:Nuclear Proteins; D012333:RNA, Messenger; D018168:Receptors, Retinoic Acid; D047488:Retinoid X Receptors; D000091262:TEA Domain Transcription Factors; C057182:TEAD1 protein, human; D014157:Transcription Factors