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Association of G/T(rs222859) polymorphism in Exon 1 of YBX 2 gene with azoospermia, among Iranian infertile males
Author(s) -
Najafipour R.,
Rashvand Z.,
Alizadeh A.,
Aleyasin A.,
Moghbelinejad S.
Publication year - 2016
Publication title -
andrologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.633
H-Index - 59
eISSN - 1439-0272
pISSN - 0303-4569
DOI - 10.1111/and.12537
Subject(s) - azoospermia , male infertility , oligospermia , exon , biology , genotype , andrology , spermatogenesis , infertility , gene , genetics , endocrinology , medicine , pregnancy
Summary Animal model studies have shown that MSY 2 gene has a potential role in spermatogenesis. Some mutations on this gene have been proposed to be associated with human male infertility. In this study, polymorphisms of exon 1 of YBX 2 gene have been investigated. A total of 276 men were evaluated. They included 96 men with normal spermatogenesis, 60 men with nonobstructive azoospermia, 60 men with oligospermia and 60 men with asthenospermia. We extracted DNA from blood and testis tissues of samples, and analysed polymorphisms of exon 1 by sequencing method. Moreover, YBX 2 gene expression was studied by real‐time PCR on blood and testis tissue of samples. Sequencing results showed that among the studied polymorphisms, frequency of TT genotype in rs222859 polymorphism was significantly higher in azoospermic patients compared to control group ( P < 0.001). Azoospermic men exhibited significant underexpression of YBX 2 gene in blood and testis samples in comparison with controls, oligosperm and asthenosperm samples ( P < 0.001), but there was no significant difference in gene expression of YBX 2 gene in blood and testis tissues of azoospermic men, with and without mutation ( P > 0.05). According to our results, the alterations of this gene might be involved in azoospermia among Iranian population.