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Updated: Jan 20, 2026

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
Published on: April 1, 2019
Comparison between thrombophilic gene polymorphisms among high risk patients
Mariya Levkova1,2, Mari Hachmeriyan1,2, Milena Stoyanova1,2
1Department of Medical Genetics, Medical University Varna, 55 Marin Drinov Str, Varna, 9000,Bulgaria.
Factor V Leiden is a significant risk factor for vascular disorders and recurrent pregnancy loss. Screening for this thrombophilic variant is recommended for high-risk patients.
Area of Science:
- Genetics
- Reproductive Medicine
- Vascular Medicine
Background:
- Thrombophilic variants are implicated in vascular disorders and recurrent pregnancy loss.
- Understanding the role of specific genetic polymorphisms is crucial for risk assessment.
Purpose of the Study:
- To compare the prevalence of thrombophilic variants in patients with vascular disorders versus those with recurrent pregnancy loss.
- To evaluate the association of Factor V Leiden, Factor II, PAI, and MTHFR polymorphisms with these conditions.
Main Methods:
- Genotyping of 200 high-risk patients (76 vascular disorders, 124 recurrent miscarriage) using RT-PCR.
- Analysis included Factor V Leiden G1691A, Factor II G20210A, PAI 4G/5G, and MTHFR C677T polymorphisms.
- Comparison of genotype frequencies with expected Hardy-Weinberg equilibrium.
Main Results:
- Factor V Leiden variant was significantly more frequent in patients with vascular disorders compared to those with recurrent miscarriage.
- No significant difference was observed for Factor II, PAI, or MTHFR polymorphisms between the groups.
- Homozygous Factor V and Factor II genotypes were more common than expected in both patient groups.
Conclusions:
- Factor V Leiden is a primary risk factor for vascular disorders and recurrent pregnancy loss.
- Screening for Factor V Leiden is advised for patients presenting with thrombotic events or recurrent miscarriage.
- The clinical significance of Factor II, PAI, and MTHFR polymorphisms in these conditions requires further investigation.
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