title: Comparison of three methods for the gene analysis of fetal cells from maternal peripheral blood.
abstract: BACKGROUND
  Although great advances in techniques for noninvasive prenatal diagnosis using fetal cells from maternal peripheral blood have achieved, current technology does not meet the demands required for clinical use. In this study, we aimed to establish reliable methods for the gene analysis of fetal cells from maternal peripheral blood.
  
  
  METHODS
  Primed extension preamplification (PEP)-polymerase chain reaction (PCR), multiple primed in situ labeling (PRINS), and nested PCR were individually applied to detect the sex determining region Y (SRY) gene in single fetal cells collected from maternal peripheral blood.
  
  
  RESULTS
  The sensitivity and specificity of the detection of the SRY gene by PEP-PCR were 97.39% (149/153) and 99.17% (119/120), respectively. The sensitivity and specificity of PRINS were 97.56% (40/41) and 100% (35/35), respectively. The sensitivity and specificity of nested-PCR were 80.00% (24/30) and 87.50% (14/16), respectively.
  
  
  CONCLUSIONS
  PEP-PCR and PRINS are reliable techniques for the gene analysis of single fetal cells from maternal peripheral blood because of their high sensitivity and specificity. PEP-PCR and PRINS can be used as standard methods of noninvasive prenatal diagnosis using single fetal cells from maternal peripheral blood.
authors.affiliation: Department of Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
authors.forename: Han-Ping
authors.initials: HP
authors.lastname: Chen
authors.forename: Tao-Ran
authors.initials: TR
authors.lastname: Wang
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Xu
authors.forename: Ming
authors.initials: M
authors.lastname: Zhang
authors.forename: Wen-Pei
authors.initials: WP
authors.lastname: Xiang
authors.forename: Rong-Zhen
authors.initials: RZ
authors.lastname: Jiang
authors.forename: Ting-Yuan
authors.initials: TY
authors.lastname: Ma
mesh_terms: D000328:Adult; D005260:Female; D024282:Genes, sry; D006801:Humans; D016133:Polymerase Chain Reaction / Q000379:methods*; D011247:Pregnancy / Q000097:blood*; D011296:Prenatal Diagnosis / Q000379:methods*; D012680:Sensitivity and Specificity