title: Interleukin-10 -1082 G/A promoter polymorphism and pregnancy complications: results of a prospective cohort study in 1,616 pregnant women.
abstract: OBJECTIVE
  To investigate the frequency of the interleukin-10 (IL-10)-1082 G/A single nucleotide polymorphism in women with intrauterine fetal death (IUFD), pre-eclampsia (PE), preterm delivery (PD), and small for gestational age (SGA) infants.
  
  
  METHODS
  In a prospective cohort study, DNA from 1,616 consecutive pregnant women was analyzed for IL-10 -1082 G/A by polymerase chain reaction. Women who developed at least one of the predefined pregnancy complications were used as cases and compared to women without pregnancy complications.
  
  
  RESULTS
  Of 1,616 women, 254 (15.7%) developed at least one pregnancy complication. IL-10 -1082 G/A allele frequencies (G: 233/508 [45.9%] and A: 275/508 [54.1%] versus G: 1,143/2,724 [42.0%] and A: 1,581/2,724 [58.0%], respectively; p=0.10; OR 0.85; 95% CI 0.69-1.04) and genotype distributions (A/A+G/A: 201/254 [79.1%] and G/G 53/254 [20.9%] versus A/A+G/A: 1,125/1,362 [82.6%] and G/G 237/1,362 [17.4%], respectively, p=0.19; OR 0.79; 95% CI 0.54-1.15) were not significantly different between cases and controls. We observed no statistically significant difference in IL-10 -1082 G/A genotype distribution comparing controls and women with IUFD, PE, PD <37 weeks gestation, and SGA infants (<10th percentile).
  
  
  CONCLUSIONS
  IL-10 -1082 G/A polymorphism is not a genetic marker for identifying women at increased risk of common pregnancy complications.
authors.affiliation: Department of Obstetrics and Gynecology, Danube Hospital/SMZ-Ost, Vienna, Austria. felix.stonek@gmx.at
authors.forename: Felix
authors.initials: F
authors.lastname: Stonek
authors.forename: Martin
authors.initials: M
authors.lastname: Metzenbauer
authors.forename: Erich
authors.initials: E
authors.lastname: Hafner
authors.forename: Karl
authors.initials: K
authors.lastname: Philipp
authors.forename: Clemens
authors.initials: C
authors.lastname: Tempfer
mesh_terms: D015415:Biomarkers; D005260:Female; D005313:Fetal Death / Q000235:genetics; D005787:Gene Frequency; D006801:Humans; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age; D016753:Interleukin-10 / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D011225:Pre-Eclampsia / Q000235:genetics; D011247:Pregnancy; D011248:Pregnancy Complications / Q000235:genetics*; D011256:Pregnancy Outcome; D047928:Premature Birth / Q000235:genetics; D011446:Prospective Studies; D012307:Risk Factors
chemical_list: D015415:Biomarkers; D016753:Interleukin-10