title: [Expression and clinical significance of platelet-derived growth factor A in placenta of pre-eclampsia.].
abstract: OBJECTIVE
  To investigate the expression and clinical significance of platelet-derived growth factor A (PDGF-A) on placenta tissue from pre-eclampsia.
  
  
  METHODS
  The expression of PDGF-A in the placenta of 38 pre-eclampsia patients and 22 normal pregnant women at third trimester was detected by immunohistochemistry method.
  
  
  RESULTS
  (1) PDGF-A was mainly expressed in the cytomembrane and cytoplasm of cytotrophoblasts and the endothelial cell of capillary in placenta. (2) The rates of PDGF-A expression of cytotrophoblasts were 63% (24/38) in pre-eclampsia group and 32% (7/22) in normal pregnancy group, which exhibited significant difference (P < 0.05). (3) The rates of PDGF-A expression of endothelial cell were 68% (26/38) in pre-eclampsia group and 27% (6/22) in normal pregnancy group, which also showed significant difference (P < 0.01). (4) The rates of PDGF-A expression of cytotrophoblasts were 39% (7/18) in mild pre-eclampsia patients and 85% (17/20) in severe pre-eclampsia, which reached statistical difference (P < 0.01).
  
  
  CONCLUSIONS
  The increasing expression of PDGF-A in cytotrophoblast and endothelial cell in placenta might confer the occurrence and progression of pre-eclampsia.
authors.affiliation: Department of Obstetrics and Gynecology, China-Japan Union Hospital of Jilin University, Changchun 130033, China.
authors.forename: Ai-Chen
authors.initials: AC
authors.lastname: Zhang
authors.forename: Xiao-Chun
authors.initials: XC
authors.lastname: Sun
authors.forename: Wei-Chun
authors.initials: WC
authors.lastname: Leng
authors.forename: Jia-Wen
authors.initials: JW
authors.lastname: Zhou
mesh_terms: D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D010920:Placenta / Q000378:metabolism; D011225:Pre-Eclampsia / Q000378:metabolism; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D014327:Trophoblasts / Q000378:metabolism