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Deependra Kumar Yadav,Anil Kumar Tripathi,Divya Gupta,Saurabh Shukla,Aloukick Kumar Singh,Ashutosh Kumar,Jyotsna Agarwal,K. N. Prasad 대한혈액학회 2017 Blood Research Vol.51 No.4
Background: Immune thrombocytopenia (ITP) is an immune-mediated disease caused by autoanti-bodies against platelets membrane glycoproteins GPIIb/IIIa and GPIb/IX. The etiology of ITP remains unclear. This study evaluated the association of polymorphisms in interleukin (IL)-1B-31, IL-1B-511, and IL-1Ra with ITP. Methods: Genotyping of IL-1B-31, IL-1B-511, and IL-1Ra was performed in 118 ITP patients and 100 controls by polymerase chain reaction restriction fragment length polymorphism and detection of variable number tandem repeats. Results: Genotype differences in IL-1B-31 and IL-1Ra were significantly associated with ITP. Patients showed a higher frequency of the IL-1B-31 variant allele (T) and a 1.52-fold greater risk of susceptibility to ITP (odds ratio [OR]=1.52, 95% confidence interval [CI]=1.04‒2.22, P=0.034). The frequencies of both homozygous and heterozygous variant geno-types of IL-1B-31 were higher (OR=2.33, 95% CI=1.069‒5.09, P=0.033 and OR=2.044, 95% CI=1.068‒39, P=0.034) among patients and were significantly associated with ITP susceptibility. Both homozygous and heterozygous variant genotypes of IL-1Ra were also more frequent (OR=4.48, 95% CI=1.17‒17.05, P=0.0230 and OR=1.80, 95% CI=1.03‒3.14, P=0.0494) among patients and were associated with ITP risk. IL-1B-31 and IL-1Ra also showed significant association with severe ITP. However, IL-1B-511 was not asso-ciated with ITP. Conclusion: IL-1B-31 and IL-1Ra polymorphisms may significantly impact ITP risk, and they could be associated with disease severity, which may contribute to the pathogenesis of ITP.
Deependra Kumar Yadav,Anil Kumar Tripathi,Divya Gupta,Saurabh Shukla,Aloukick Kumar Singh,Ashutosh Kumar,Jyotsna Agarwal,K. N. Prasad 대한혈액학회 2017 Blood Research Vol.52 No.4
Background: Immune thrombocytopenia (ITP) is an immune-mediated disease caused by autoanti-bodies against platelets membrane glycoproteins GPIIb/IIIa and GPIb/IX. The etiology of ITP remains unclear. This study evaluated the association of polymorphisms in interleukin (IL)-1B-31, IL-1B-511, and IL-1Ra with ITP. Methods: Genotyping of IL-1B-31, IL-1B-511, and IL-1Ra was performed in 118 ITP patients and 100 controls by polymerase chain reaction restriction fragment length polymorphism and detection of variable number tandem repeats. Results: Genotype differences in IL-1B-31 and IL-1Ra were significantly associated with ITP. Patients showed a higher frequency of the IL-1B-31 variant allele (T) and a 1.52-fold greater risk of susceptibility to ITP (odds ratio [OR]=1.52, 95% confidence interval [CI]=1.04‒2.22, P=0.034). The frequencies of both homozygous and heterozygous variant geno-types of IL-1B-31 were higher (OR=2.33, 95% CI=1.069‒5.09, P=0.033 and OR=2.044, 95% CI=1.068‒39, P=0.034) among patients and were significantly associated with ITP susceptibility. Both homozygous and heterozygous variant genotypes of IL-1Ra were also more frequent (OR=4.48, 95% CI=1.17‒17.05, P=0.0230 and OR=1.80, 95% CI=1.03‒3.14, P=0.0494) among patients and were associated with ITP risk. IL-1B-31 and IL-1Ra also showed significant association with severe ITP. However, IL-1B-511 was not asso-ciated with ITP. Conclusion: IL-1B-31 and IL-1Ra polymorphisms may significantly impact ITP risk, and they could be associated with disease severity, which may contribute to the pathogenesis of ITP.