IL-1RA VNTR and IL-1α 4845G>T polymorphisms and risk of idiopathic male infertility in Iranian men: A case�control study and an in silico analysis

Zamani-Badi, T. and Nikzad, H. and Karimian, M. (2018) IL-1RA VNTR and IL-1α 4845G>T polymorphisms and risk of idiopathic male infertility in Iranian men: A case�control study and an in silico analysis. Andrologia, 50 (9).

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Abstract

Abstract This study aimed to investigate the association of IL‐1RA VNTR and IL‐1α 4845G>T polymorphisms with idiopathic male infertility followed by an in silico analysis. In a case–control study, we collected blood samples from 230 infertile and 230 healthy men. Genotyping of IL‐1RA VNTR was performed by PCR whereas IL‐1α 4845G>T was genotyped by polymerase chain reaction‐restriction fragment length polymorphism. An in silico approach was employed for the detection of IL‐1RA VNTR and IL‐1α 4845G>T effects on some molecular aspects of IL‐1RA and IL‐1α respectively. The result of our genetic association study for IL‐1α 4845G>T revealed that there was a significant association between GT genotype, TT genotype, T allele and idiopathic male infertility. Although there was no significant association between IL‐1RA VNTR and male infertility in the overall analysis. However, subgroup analysis revealed that the subjects with VNTR 4R/5R genotype were at a higher risk of oligozoospermia. Furthermore, 4845TT genotype, and 4845T allele were associated with oligozoospermia, asthenozoospermia and nonobstructive azoospermia. Bioinformatics analysis showed that IL‐1RA VNTR may affect the splicing pattern of IL‐1RA. Moreover, IL‐1α 4845G>T has a significant effect on RNA structure and protein function. Based on our findings, both IL‐1RA VNTR and IL‐1α 4845G>T polymorphisms could be considered as potential biomarkers for screening of susceptible individuals.

Item Type: Article
Additional Information: cited By 2
Subjects: Biochemistry, Genetics and Molecular Biology
Divisions: Faculty of Medicine > Basic Sciences > Applied Cell Sciences
Depositing User: ART . editor
Date Deposited: 03 Feb 2019 15:15
Last Modified: 03 Feb 2019 15:15
URI: http://eprints.kaums.ac.ir/id/eprint/3481

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