Polymorphisms in DNA repair genes (APEX1, XPD, XRCC1 and XRCC3) and risk of preeclampsia in a Mexican mestizo population

Int J Mol Sci. 2014 Mar 11;15(3):4273-83. doi: 10.3390/ijms15034273.

Abstract

Variations in genes involved in DNA repair systems have been proposed as risk factors for the development of preeclampsia (PE). We conducted a case-control study to investigate the association of Human apurinic/apyrimidinic (AP) endonuclease (APEX1) Asp148Glu (rs1130409), Xeroderma Pigmentosum group D (XPD) Lys751Gln (rs13181), X-ray repair cross-complementing group 1 (XRCC) Arg399Gln (rs25487) and X-ray repair cross-complementing group 3 (XRCC3) Thr241Met (rs861539) polymorphisms with PE in a Mexican population. Samples of 202 cases and 350 controls were genotyped using RTPCR. Association analyses based on a χ2 test and binary logistic regression were performed to determine the odds ratio (OR) and a 95% confidence interval (95% CI) for each polymorphism. The allelic frequencies of APEX1 Asp148Glu polymorphism showed statistical significant differences between preeclamptic and normal women (p = 0.036). Although neither of the polymorphisms proved to be a risk factor for the disease, the APEX1 Asp148Glu polymorphism showed a tendency of association (OR: 1.74, 95% CI = 0.96-3.14) and a significant trend (p for trend = 0.048). A subgroup analyses revealed differences in the allelic frequencies of APEX1 Asp148Glu polymorphism between women with mild preeclampsia and severe preeclampsia (p = 0.035). In conclusion, our results reveal no association between XPD Lys751Gln, XRCC Arg399Gln and XRCC3 Thr241Met polymorphisms and the risk of PE in a Mexican mestizo population; however, the results in the APEX1 Asp148Glu polymorphism suggest the need for future studies using a larger sample size.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Case-Control Studies
  • Chi-Square Distribution
  • DNA Repair / genetics
  • DNA-(Apurinic or Apyrimidinic Site) Lyase / genetics*
  • DNA-Binding Proteins / genetics*
  • Female
  • Gene Frequency
  • Genetic Predisposition to Disease / genetics
  • Genotype
  • Humans
  • Logistic Models
  • Mexico
  • Odds Ratio
  • Polymorphism, Single Nucleotide*
  • Pre-Eclampsia / genetics*
  • Pre-Eclampsia / pathology
  • Pregnancy
  • Risk Factors
  • Severity of Illness Index
  • X-ray Repair Cross Complementing Protein 1
  • Xeroderma Pigmentosum Group D Protein / genetics*
  • Young Adult

Substances

  • DNA-Binding Proteins
  • X-ray Repair Cross Complementing Protein 1
  • X-ray repair cross complementing protein 3
  • XRCC1 protein, human
  • Xeroderma Pigmentosum Group D Protein
  • APEX1 protein, human
  • DNA-(Apurinic or Apyrimidinic Site) Lyase
  • ERCC2 protein, human