title: [Association study between 834+7G/A and +1332C/T polymorphisms in the growth arrest specific 6 gene and risk of severe preeclampsia in Chinese population].
abstract: OBJECTIVE
  To investigate the relationship between polymorphisms of the growth arrest specific 6 (GAS6) gene and severe preeclampsia in a South West Han Chinese population.
  
  
  METHODS
  Blood samples from 167 patients with severe preeclampsia and 312 normal pregnant women as controls from Han Chinese in Chengdu area were analyzed by polymerase chain reaction-restriction fragment length polymorphisms.
  
  
  RESULTS
  C and T allele frequencies for +1332C/T site were 85.63% and 14.37% in the patient group, respectively, and 78.04% and 21.96% in control group, respectively. The TT genotype and variant T allelic frequencies of the +1332C/T polymorphism were significantly lower in patients with severe preeclampsia than in the control group (both P<0.05), and the odds ratio for the risk of severe preeclampsia was 0.602 (95%CI: 0.401-0.904) in carriers for the variant T allele (χ2=6.045, P=0.014). G and A allele frequencies for 834+7G/A site were 72.75% and 27.25% in case group, respectively, and 74.36% and 25.64% in control group, respectively. The genotype and allele frequencies of the 834+7G/A polymorphism in patients with severe preeclampsia and controls showed no significant differences (both P>0.05). In addition, there was no significant association between the polymorphisms and blood pressure levels in the patient or control groups.
  
  
  CONCLUSIONS
  The variant GAS6+1332 T allele is associated with a decreased risk for severe preeclampsia in a South West Han Chinese population. On the other hand, the 834+7G/A polymorphism has no effect on the severe preeclampsia.
authors.affiliation: Laboratory of Genetic Disease and Perinatal Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041 China. baihuai60@aliyun.com.
authors.forename: Liyan
authors.initials: L
authors.lastname: Ye
authors.forename: Linbo
authors.initials: L
authors.lastname: Guan
authors.forename: Ping
authors.initials: P
authors.lastname: Fan
authors.forename: Xinghui
authors.initials: X
authors.lastname: Liu
authors.forename: Rui
authors.initials: R
authors.lastname: Liu
authors.forename: Jinxin
authors.initials: J
authors.lastname: Chen
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhu
authors.forename: Xin
authors.initials: X
authors.lastname: Wei
authors.forename: Yu
authors.initials: Y
authors.lastname: Liu
authors.forename: Huai
authors.initials: H
authors.lastname: Bai
mesh_terms: D000328:Adult; D000483:Alleles; D044466:Asian People / Q000235:genetics; D002681:China; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000208:ethnology / Q000235:genetics*; D005838:Genotype; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins / Q000235:genetics*; D016133:Polymerase Chain Reaction; D020641:Polymorphism, Single Nucleotide; D011225:Pre-Eclampsia / Q000208:ethnology / Q000235:genetics* / Q000473:pathology; D011247:Pregnancy; D012307:Risk Factors; D012720:Severity of Illness Index; D055815:Young Adult; D000099255:Growth Arrest-Specific Protein 6
chemical_list: D036341:Intercellular Signaling Peptides and Proteins; D000099255:Growth Arrest-Specific Protein 6