The relationship between polymorphisms of P-selectin genes and plasma P-selectin concentration with thrombosis in non-valvular atrial fibrillation of Kazakh ethnicity

Objective:To explore the relationship between polymorphisms in rs1800807 and rs1800808 locies of P-selectin gene and plasma concentrations of soluble P-selectin(sPs)and non-valvular atrial fibrillation(Af)coupled with thrombosis in Kazakh ethnicity.Methods:This was a case-control study,enrolling hospitalized Kazakh Af patients with and without thrombosis and healthy subjects.PCR-RFLP method was used to analyze the polymorphisms of the locies,and ELISA method was to measure plasma sPs concentrations.Subjects were divided into Af thrombosis,only Af and control groups.Results:We enrolled 42 Af thrombosis,156 only Af and 307 control subjects.Carriers of GG genotype of the loci rs1800807 was the highest in Af thrombosis,followed by only Af and the lowest in the control groups(69 vs 23.7 vs 18.2%,P<0.001).Carriers of TT genotype of the loci rs1800808 was the highest in Af thrombosis,followed by only Af and the lowest in the control groups(31.0 vs 13.5 vs 8.1%,P<0.001).Plasma sPs concentrations was the highest in Af thrombosis group,followed by only Af group and the lowest in the control(52.20 vs 34.04 vs 35.85pg/mL,P<0.001).Plasma sPs concentrations were significantly higher in the carriers of GG genotypes of the loci rs1800807 than in those of CC and CG genotypes(45.75 vs 33.86 vs 39.26pg/mL,P<0.001)and also significantly higher in the carries of TT of the loci rs1800808 than in those of CC and CT(43.16 vs 36.74 vs 39.08pg/mL,P<0.001).GG type of rs1800807 loci(OR=3.35,95%CI:2.03-5.55)and TT type of rs1800808(OR=2.19,95%CI:1.65-2.90)showed significantly higher odd's ratio for Af thrombosis,compared with the wild genotype and the highest tertile of plasma sPs aslo showed higher odd's ratio(OR=1.31,95CI%:1.12-1.93),compared with the lowest tertile.Conclusion:polymorphisms of the locies of the PS gene were observed to exist in Af patients with thrombosis and with higher concentrations of plamsa sPs,suggesting their involvement in Af and thrombosis in Kazakh subjects.