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Published on: September 20, 2024
Association of polymorphisms in genes encoding prothrombotic and cardiovascular risk factors with disease severity in
Ivana Lapić1, Margareta Radić Antolic1, Ivana Horvat1
1Department of Laboratory Diagnostics, University Hospital Center Zagreb, Zagreb, Croatia.
Insights
Genetic variations in prothrombotic and cardiovascular risk factors are linked to COVID-19 severity. The ITGB3 PIA2 allele and Factor V (FV) H1299R combined with Factor XIII (FXIII) V34L increase severe COVID-19 risk.
Area of Science:
- Genetics
- Cardiovascular Medicine
- Infectious Diseases
Background:
- COVID-19 severity is influenced by host genetic factors.
- Prothrombotic and cardiovascular risk factors play a role in disease pathogenesis.
- Understanding genetic predispositions can aid in predicting COVID-19 outcomes.
Purpose of the Study:
- To investigate the association between 16 gene polymorphisms and COVID-19 severity.
- To identify specific genetic markers that predict a higher risk of severe disease.
- To explore combined effects of genetic polymorphisms on COVID-19 outcomes.
Main Methods:
- Genotyping of 16 polymorphisms in prothrombotic and cardiovascular risk genes using CVD StripAssays and real-time PCR.
- Comparative analysis of genotype frequencies between severe (n=30) and non-severe (n=49) COVID-19 patients.
- Statistical evaluation to determine significant associations and risk factors.
Main Results:
- A higher frequency of the ITGB3 PIA2 allele was observed in severe COVID-19 patients (p=0.009).
- ITGB3 polymorphism was associated with a 3.5-fold increased risk of severe COVID-19 (p=0.011).
- Significant genotype distribution differences were found for ß-Fbg -455 G>A, and combined polymorphisms (FV H1299R/FXIII V34L, ITGB3 PIA1/A2/ITGA2B Baka/b, ACE I/D/PAI-1 4G/5G).
Conclusions:
- ITGB3 polymorphism is an independent risk factor for severe COVID-19.
- Homozygosity for ß-Fbg -455 G>A mutation may contribute to disease severity.
- Combined effects of multiple genetic polymorphisms may exacerbate COVID-19 severity.
Abstract:
The present study aimed to assess the association of 16 polymorphisms in genes encoding prothrombotic and cardiovascular risk factors with COVID-19 disease severity: FV G1691A, FV H1299R, FII G20210A, MTHFR C677T, MTHFR A1298, factor XIII V34L, PAI-1 4G/5G, EPCR haplotypes (A1/A2/A3), eNOS -786 T > C, eNOS G894T, LTA C804A, ACE I/D, ITGB3 PIA1/A2, ITGA2B Baka/b, β-Fbg -455 G > A and ApoB R3500Q. The study included 30 patients with severe COVID-19 and 49 non-severe COVID-19 patients. All studied polymorphisms except ITGA2B Baka/b were determined using multilocus genotyping assays CVD StripAssays (ViennaLab Diagnostics), while ITGA2B was genotyped using a real-time PCR method based on TaqMan technology. A higher frequency of carriers of at least one ITGB3 PIA2 allele was found in severe COVID-19 patients (p = 0.009). The distribution of genotypes was significantly different for ß-Fbg -455 G > A (p = 0.042), with only three homozygous AA genotypes found among severe COVID-19 patients. The association with an increased risk for severe COVID-19 was found for ITGB3, with carriers of at least one ITGB3 PIA2 allele having a 3.5-fold greater risk of severe COVID-19 (p = 0.011). Genotype distribution differences were obtained for the combinations of FV H1299R and FXIII V34L (p = 0.026), ITGB3 PIA1/A2 and ITGA2B Baka/b (p = 0.024), and ACE I/D and PAI-1 4G/5G (p = 0.046). ITGB3 polymorphism emerged as an independent risk factor for severe COVID-19 and homozygosity for ß-Fbg -455 G > A mutation could contribute to disease severity. The combined effect of polymorphisms in genes encoding prothrombotic and cardiovascular risk factors could further contribute to disease severity.
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