Evaluating the Prevalence of Plasminogen Activator Inhibitor-1 Gene Polymorphism in Patients with Thyroid Tumors from North West of Iran

Association of PAI-1 polymorphisms with the increased risk of various malignancies has been shown in numerous studies. Therefore, the aim of the current study is to evaluate the prevalence of PAI-1 4G/5G polymorphism in patients with thyroid tumors from North West of Iran.
Ninety patients with thyroid tumors and 180 healthy controls were selected from North West of Iran. DNA was extracted from peripheral blood samples and 4G/5G polymorphism of the PAI-1 gene was evaluated by polymerase chain reaction using specific primers.
Findings: Genotype distribution between patients was (4G/4G=13.33%, 4G/5G=63.33% and 5G/5G=23.33%) and controls (4G/4G=17.22%, 4G/5G=67.22% and 5G/5G=15.55%). Additionally, the frequencies of the 4G and 5G alleles between patients were (45% and 55%) and control group (50.83% and 49.16%).
Discussion & Results indicate that the genotypic and allelic frequencies of PAI-1 4G/5G polymorphism showed no significant difference between patients with thyroid tumors and control individuals in this cohort.