Cancer risk in first- and second-degree relatives of men with poor semen quality

To further characterize the association of male infertility with health risks by evaluating semen quality and cancer risk in family members.

Retrospective, cohort study.

Not applicable.

A total of 12,889 men undergoing SA and 12,889 fertile control subjects that had first-degree relative (FDR) data (n = 130,689) and 8,032 men with SA and 8,032 fertile control subjects with complete second-degree relative (SDR) data (n = 247,204) were identified through the UPDB. An equal number of fertile population control subjects were matched.

None.

Adult all-site, testicular, thyroid, breast, prostate, melanoma, bladder, ovarian, and kidney cancer diagnoses in FDRs and SDRs.

The FDRs of men with SA had a 52% increased risk of testicular cancer compared with the FDRs of fertile population control subjects. There was no significant difference in testicular cancer risk for the SDRs based on any of the semen parameters. The FDRs and SDRs of azoospermic men had a significantly increased risk of thyroid cancer compared with fertile population control subjects.

These data suggest a link between male infertility and selected cancer risk in relatives. This highlights the possibilities of shared biologic mechanisms between the two diseases, exposure to environmental factors, and an increased level of genetic and/or epigenetic burden in subfertile men and their relatives that may be associated with risk of cancer.

Fertility and sterility. 2016 Jun 20 [Epub ahead of print]

Ross E Anderson, Heidi A Hanson, Darshan P Patel, Erica Johnstone, Kenneth I Aston, Douglas T Carrell, William T Lowrance, Ken R Smith, James M Hotaling

Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah. Electronic address: ., Department of Family and Preventive Medicine and Population Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah., Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah., Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, Utah., Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah., Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah; Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, Utah., Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah., Department of Family and Consumer Studies and Population Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah., Division of Urology, Department of Surgery, University of Utah, Salt Lake City, Utah.

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