Study of a 27-bp variable number of tandem repeat polymorphism of the endothelial nitric oxide synthase gene in patients with transient ischemic attack of brain / 中华老年医学杂志

Objective To investigate the association between a 27-bp variable number of tandem repeat(VNTR) polymorphism of the endothetial nitric-oxide synthase(eNOS)gene and transient ischemic attack(TIA) of brain.Methods Polymerase chain reaction was performed for the genotypes of all patients and control subjects.Data were compared between patients and control subjects using ?~(2)test. Results The genotype ab distribution and allele a frequencies of eNOS gene were significantly higher in TIA group(25.0%,14.3%) than in control group(16.3%,9.2%)(P