Whole Exome Sequencing Identifies a Rare Nonsense Mutation in FAM47C as a Possible Cause of Severe Oligospermia in Brothers With Varicocele

Willy Chertman, Himanshu Arora, Anthony J. Griswold, Diana M. Lopategui, Ranjith Ramasamy

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Abstract

Varicocele is a common cause of impaired semen parameters in men with infertility. Here, we investigated genetic variants as possible causes of varicocele with impaired semen parameters using whole exome sequencing in a family with 2 brothers with severe oligospermia, 1 unaffected brother, father, and the mother. Results showed a premature stop codon alteration on Chromosome X (37028866 CT)in the gene FAM47C. The affected brothers were found to be hemizygous for the variant, while the mother was a heterozygous carrier. In conclusion, identifying men with varicocele that would have impaired spermatogenesis, using approaches like whole-exome sequencing, can be paradigm shifting.

Original languageEnglish (US)
JournalUrology
DOIs
StatePublished - Jan 1 2019

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ASJC Scopus subject areas

  • Urology

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