title: GT microsatellite repeats in the heme oxygenase-1 gene promoter associated with abdominal aortic aneurysm in Croatian patients.
abstract: Abdominal aortic aneurysm (AAA) is a complex genetic disorder caused by the interplay of genetic and environmental risk factors. The number of (GT)(n) repeats in the heme oxygenase-1 (HO-1) gene promoter modulates transcription of this enzyme, which might have anti-inflammatory, antioxidant, antiapoptotic, and antiproliferative effect. The distribution of alleles and genotypes in Croatian individuals genotyped for the (GT)(n) HO-1 polymorphism was similar to that in other European populations. Frequency of the short (S) alleles (GT < 25) was higher in AAA patients (41.9%) than in non-AAA individuals (28.2%, p = 0.0026) because there were more SL heterozygotes among the AAA patients. The SL genotype appeared to increase the risk for AAA, but the increase was not statistically significant after adjustment for age, sex, smoking, hypertension, and hyperlipidemia (OR = 1.53, 95% CI 0.90-3.09, p = 0.062). These findings contradict those of the only other study performed so far on the association of (GT)(n) HO-1 polymorphism and AAA.
authors: Division of Vascular Surgery, Clinic of Surgery, University Hospital Center Zagreb, Zagreb, Croatia.
authors: Andrea Crkvenac
authors: AC
authors: Gregorek
authors: Kristina Crkvenac
authors: KC
authors: Gornik
authors: Darija Stupin
authors: DS
authors: Polancec
authors: Sanja
authors: S
authors: Dabelic
mesh_terms: D000368:Aged; D000483:Alleles; D017544:Aortic Aneurysm, Abdominal / Q000201:enzymology* / Q000235:genetics*; D017523:Croatia; D005260:Female; D005787:Gene Frequency / Q000235:genetics; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D051547:Heme Oxygenase-1 / Q000235:genetics*; D006801:Humans; D008297:Male; D018895:Microsatellite Repeats / Q000235:genetics*; D011110:Polymorphism, Genetic; D011401:Promoter Regions, Genetic
chemical_list: D051547:Heme Oxygenase-1