Seminal hyperviscosity is not associated with semenogelin degradation or sperm deoxyribonucleic acid damage A prospective study of infertile couples

Data from this study suggest that seminal hyperviscosity (a posttesticular factor) is not an important cause of sperm DNA damage and is not associated with semenoglin degradation.

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Authors

Navid Esfandiari, D.V.M, Ph.D., Eve de Lamirande, Ph.D., Asli Gokturk, M.Sc., Maria C. San Gabriel, Ph.D., Zohreh Nazemian, M.D., M.Sc., Hasan Burjaq, M.S., Robert F Casper, M.D., Armand Zini, M.D.

Volume 101, Issue 6, Pages 1599–1603

Abstract

Objective:

To investigate the association between seminal hyperviscosity, the extent of semenogelin degradation, and sperm DNA integrity (DNA fragmentation index [DFI] and high DNA stainability [HDS]) in semen from infertile couples.

Design:

Prospective study.

Setting:

University-affiliated fertility center.

Patient(s):

Twenty-four consecutive infertile couples with moderate or high seminal viscosity (hyperviscosity group) and 25 consecutive infertile couples with normal semen viscosity (control group) undergoing standard IVF.

Intervention(s):

Semen volume and seminal hyperviscosity, sperm concentration, motility, and morphology, level of semenogelin degradation (by immunoblotting), and sperm chromatin damage (by sperm chromatin structure assay and expressed as %DFI and %HDS) were evaluated.

Main Outcome Measures(s):

Sperm %DFI and %HDS in the hyperviscosity group and the control group and the relationship between the extent of semenogelin degradation and seminal viscosity.

Result(s):

Semen volume in couples with moderate and high seminal viscosity was significantly lower as compared with the control group. In addition, total motility and normal morphology were significantly lower in the couples with high seminal viscosity as compared with the control group; however, there were no significant differences in sperm %DFI and %HDS between the hyperviscosity group and the control group. In addition, there was no relationship between the extent of semenogelin degradation and seminal viscosity.

Conclusion(s):

Our data suggest that seminal hyperviscosity (a posttesticular factor) is not an important cause of sperm DNA damage. Moreover, seminal hyperviscosity is not related to the degree of semenogelin degradation.

Read the full text at: http://www.fertstert.org/article/S0015-0282(14)00198-8/fulltext


Fertility and Sterility

Editorial Office, American Society for Reproductive Medicine

Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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