Fibrinogen B β promoter polymorphism may not be associated with pulmonary embolism

Objective A prospective experiment was designed to explore all possible SNPs in the promoter region of fibrinogen B β (FGB) and reveal the influence of these SNPs on susceptibility of pulmonary embolism. Methods In this 2-year randomized prospective study, we had totally recruited 203 volunteers. 58 PE patients (58 out of 145 VTE patients) and 114 healthy people were taken as case and control objects, respectively. FGB promoter was detected by gene sequencing. Results There were 6 SNPs in FGB promoter, which were β-1420G/A, β-993C/T, β-854G/A, β-455G/A, β-249C/T, and β-148C/T. Genotype frequencies of individual SNPs between the cases and controls were not statistically significant, all p > .05. After excluding subjects of COVID-19 infection within 6 months, the statistical results (35 PE patients vs 66 healthy people) were consistent. Conclusion The susceptibility to pulmonary embolism may not be affected by any SNP in the FGB promoter region.