title: Body adiposity but not insulin resistance is associated with -675 4G/5G polymorphism in the PAI-1 gene in a sample of Mexican children.
abstract: OBJECTIVE
  To assess whether the -675 4G/5G polymorphism in the plasminogen activator inhibitor-1 gene is associated with obesity and insulin resistance in Mexican children.
  
  
  METHODS
  A cross-sectional study was performed in 174 children, 89 with normal-weight and 85 with obesity, aged from 6 to 13 years. All children were from state of Guerrero, and recruited from three primary schools in the city of Chilpancingo, state of Guerrero, Mexico. Insulin levels were determined by immunoenzymatic assay. The homeostasis model assessment was used to determine insulin resistance. The -675 4G/5G polymorphism in PAI-1 gene was analyzed by polymerase chain reaction-restriction fragment length polymorphism.
  
  
  RESULTS
  The prevalence of insulin resistance in the obese group was higher (49.41%) than in the normal-weight group (16.85%). The 4G/5G PAI-1 polymorphism was found in Hardy Weinberg equilibrium. The 4G/5G genotype contributed to a significant increase in waist-hip ratio (β=0.02, p=0.006), waist circumference (β=4.42, p=0.009), and subscapular skinfold thickness (β=1.79, p=0.04); however, it was not related with insulin resistance.
  
  
  CONCLUSIONS
  The -675 4G/5G genotype of PAI-1 gene was associated with increase of body adiposity in Mexican children.
authors.affiliation: BSc. Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico.
authors.forename: Ulises
authors.initials: U
authors.lastname: de la Cruz-Mosso
authors.forename: José Francisco
authors.initials: JF
authors.lastname: Muñoz-Valle
authors.forename: Aralia Berenice
authors.initials: AB
authors.lastname: Salgado-Bernabé
authors.forename: Natividad
authors.initials: N
authors.lastname: Castro-Alarcón
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Salgado-Goytia
authors.forename: José
authors.initials: J
authors.lastname: Sánchez-Corona
authors.forename: Silvia Esperanza
authors.initials: SE
authors.lastname: Flores-Martínez
authors.forename: Isela
authors.initials: I
authors.lastname: Parra-Rojas
mesh_terms: D050154:Adiposity / Q000235:genetics*; D000293:Adolescent; D001786:Blood Glucose; D001835:Body Weight; D016022:Case-Control Studies; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance / Q000235:genetics*; D016014:Linear Models; D008297:Male; D008800:Mexico; D009765:Obesity / Q000235:genetics; D017395:Plasminogen Activator Inhibitor 1 / Q000235:genetics*; D016133:Polymerase Chain Reaction / Q000379:methods; D011110:Polymorphism, Genetic / Q000235:genetics*; D055105:Waist Circumference
chemical_list: D001786:Blood Glucose; D007328:Insulin; D017395:Plasminogen Activator Inhibitor 1
keywords: Adiposidade corporal; Body adiposity; Gene PAI-1; Insulin resistance; PAI-1 gene; Polimorfismos; Polymorphisms; Resistência insulínica