Male infertility is a complex disease affecting the reproduction of childbearing couples, for which genetic polymorphism of spermatogenesis genes is an important genetic pathogenic factor. Lots of genes closely related with spermatogenesis have been successfully identified through the gene knockout technology. Spermatogenesis impairment related genes include those associated with expression enzymes, receptors, cell apoptosis, transcription regulation, and so on. The genetic susceptibility of these genes, infection, and environment jointly contribute to non-obstructive azoospermia and oligozoospermia in males. The analysis of the single nucleotide polymorphism (SNP) of spermatogenesis impairment related genes helps explain the possible mechanism of pathogenesis at the molecular level, and provides theoretical evidence for the clinical diagnosis and treatment of male infertility. The article focuses on the correlation of the SNPs of spermatogenesis impairment related genes with azoospermia and oligozoospermia.
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