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J Assist Reprod Genet. 2014 Feb;31(2):131-7. doi: 10.1007/s10815-013-0140-9. Epub 2013 Nov 26.

Variants in DPF3 and DSCAML1 are associated with sperm morphology.

Author information

1
Department of Human Genetics, University of Chicago, Chicago, IL, 60637, USA.

Abstract

PURPOSE:

Abnormalities in semen parameters are often associated with reduced fertility in males, and may, in part, be attributed to genetic variation. Aim of this study is to determine if genetic variants that were previously shown to be predictors of family size and birth rate in healthy men are also associated with sperm morphology in men recruited from an infertility laboratory.

METHODS:

Genetic associations with sperm morphology phenotypes in 126 ethnically diverse men from Chicago at 41 independent loci, previously shown to be predictors of family size and birth rate in healthy men, were tested.

RESULTS:

Two intronic SNPs, rs680730 (in DSCAML1) and rs10129954 (in DPF3), were associated with the percent of normal sperm morphology in Chicago men (P = 0.017 and 0.023, respectively). Furthermore, both loci were associated with increased occurrence of sperm head defects.

CONCLUSIONS:

SNPs in two genes, both of which have roles in nervous system development, were associated with poor sperm morphology. These results may be helpful in identification of other novel genes and biological pathways whose proper functioning is crucial for sperm production and male reproductive processes.

PMID:
24271036
PMCID:
PMC3933604
DOI:
10.1007/s10815-013-0140-9
[Indexed for MEDLINE]
Free PMC Article

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