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Updated: Jul 1, 2026

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
Published on: April 1, 2019
[Polymorphism of platelet glycoprotein Ibalpha as a genetic predictor of coronary artery disease]
Marlena Culjak Aleksić1, Jasna Mesarić
1Magdalenac--Specijalna bolnica za kardiovaskularnu kirurgiju i kardiologiju, Krapinske Toplice. marlena.culjak@magdalena.hr
Insights
This study found no significant link between the GPIbalpha145Thr/Met (HPA-2) polymorphism and coronary artery disease (CAD) in Croatian patients. Further research on other platelet glycoprotein polymorphisms and CAD is warranted.
Area of Science:
- Cardiovascular Genetics
- Hematology
- Molecular Biology
Context:
- Atherosclerosis, a multifactorial disease, involves genetic and environmental factors.
- Platelet membrane antigen polymorphisms are potential risk factors for coronary artery disease (CAD).
- Previous studies on platelet polymorphisms and CAD have yielded controversial results.
Purpose:
- To investigate the frequency of the GPIbalpha145Thr/Met (HPA-2) polymorphism in Croatian patients.
- To assess the association between this polymorphism and the prevalence of CAD.
Summary:
- 604 Croatian patients (402 with CAD, 202 controls) were analyzed for the GPIbalpha145Thr/Met (HPA-2) polymorphism.
- Genotype and allele frequencies did not show a statistically significant difference between CAD patients and controls.
- No significant association was found between the GPIbalpha145Thr/Met (HPA-2) polymorphism and CAD in this cohort.
Impact:
- Findings align with studies in Central European populations, suggesting limited role of this specific polymorphism in CAD.
- Highlights the need for further investigation into other platelet glycoprotein polymorphisms and their relationship with CAD in Croatian populations.
Abstract:
Atherosclerosis is a multifactorial disease caused by the interaction between genetic predisposition and environmental influences. Polymorphisms within platelet membrane antigens have been recognized as a potential risk factor involved in pathogenesis of coronary artery disease (CAD). Results of different studies on association of platelet membrane polymorphisms and CAD are controversial. The aim of our study was to investigate the frequency of GPIbalpha145Thr/Met (HPA-2) polymorphism among Croatian patients and to assess the relationship between this polymorphism and the prevalence of CAD. 604 patients were enrolled in this investigation and according to the results of coronary angiograms were devided in two groups: 402 patients with coronary angiography confirmed CAD and 202 patients without coronary angiography confirmed CAD (control group). Frequency of genotypes HPA-2ab (Thr/Met) and HPA-2bb (Met/Met) was higher in CAD group than in control group (22.1% vs 21.3% and 1.3% vs 0,5%) but the difference was not statistically significant (p = 0.654). Among CAD patients, the frequency of Met allele was nonsignificantly higher than among control group patients (0.12 vs 0.11). Statistical analysis showed no significant connection between GPIbalpha145Thr/Met (HPA-2) polymorphism and CAD (OR, 1.10; 95% CI, 0.69 do 1.50). This is in concordance with the results of investigation conducted among central Europeans. The relationship of other platelet glycoprotein polymorphisms and CAD among Croatians remains to be investigated.
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