title: Plasminogen activator inhibitor I 4G/5G polymorphism in neonatal respiratory distress syndrome.
abstract: Fibrin monomers inhibit surfactant function. 4G/5G insertion/deletion polymorphism plays an important role in the regulation of plasminogen activator inhibitor 1 (PAI-1) gene expression. To examine the genotype distribution of PAI-1 polymorphism in 60 infants with respiratory distress syndrome (RDS) and 53 controls, an allele-specific polymerase chain reaction (PCR) was used. The proportion of 4G/4G, 4G/5G, and 5G/5G genotypes did not differ statistically between the RDS and control groups (P > .05). Having PAI-1 4G/4G genotype polymorphism appears to increase the risk of RDS (odds ratio [OR] =1.5; 95% confidence interval [CI], 0.5-4.3), although it was not statistically significant. No relation was found between the PAI-1 4G/5G polymorphisms and RDS, but there was an increased risk associated with the 4G variant of the PAI-1 gene. We believe that our findings of increased 4G allele of the PAI-1 gene in infants with RDS would also help to clarify the pathogenesis of RDS.
authors.affiliation: Department of Pediatrics, Neonatology Unit, Faculty of Medicine, Hacettepe University, Ankara, Turkey. darmangil@gmail.com
authors.forename: Didem
authors.initials: D
authors.lastname: Armangil
authors.forename: Murat
authors.initials: M
authors.lastname: Yurdakök
authors.forename: Hamza
authors.initials: H
authors.lastname: Okur
authors.forename: Aytemiz
authors.initials: A
authors.lastname: Gürgey
mesh_terms: D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D017395:Plasminogen Activator Inhibitor 1 / Q000235:genetics*; D016133:Polymerase Chain Reaction / Q000379:methods; D011110:Polymorphism, Genetic; D012127:Respiratory Distress Syndrome, Newborn / Q000235:genetics*
chemical_list: D017395:Plasminogen Activator Inhibitor 1