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The −29G/A FSH receptor gene polymorphism is associated with higher FSH and LH levels in normozoospermic men

  • Genetics
  • Published:
Journal of Assisted Reproduction and Genetics Aims and scope Submit manuscript

Abstract

Purpose

The functional role of the FSHR promoter −29G/A polymorphism (rs1394205) in men is not clear. Some studies failed to find a relationship between the FSHR −29G/A and follicle-stimulating hormone (FSH) levels and did not associate the SNP with male infertility. Only one study showed that the FSHR −29 SNP modulates serum FSH levels in Baltic young male cohort. Because the SNP −29G/A has to be shown to have a strong effect on in vitro transcription activity of the FSHR promoter and the activation of FSHR is necessary for a normal FSH function, this study was undertaken to assess whether the FSHR -29G/A SNP modulates the gonadal endocrine function in men.

Methods

A total of 200 men with alteration of conventional sperm parameters or normozoospermia (according to the parameters WHO 2010), were genotyped by TaqMan Assay. Hormone levels were measured by immunoassay, and sperm analysis was performed according to the World Health Organization criteria.

Results

A significant gradient of increasing FSH levels across the FSHR −29G/A genotypes was observed (p < 0.01). Among normozoospermic men (n = 110), those with FSHR −29A-allele carriers (GA + AA and AA) had higher serum FSH (p < 0.01) and LH levels (p < 0.05) and higher body mass index (BMI) (p < 0.01) compared to men with the GG genotype. The carrier status of rs1394205 genotypes did not affect the other endocrine parameters neither in men with altered sperm parameters nor in normozoospermic men.

Conclusions

The FSHR −29G/A polymorphism modulates FSH and, for the first time, LH serum levels and BMI in normozoospermic men. These findings underline the importance to pay close attention to the studies of genetic variations associated with clinical-endocrine parameters.

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Acknowledgments

We thank Dr. Luca Lo Nigro, Center of Pediatric Hematology Oncology, “G. Rodolico” Hospital, for allowing us the use of AbiPrism 310 Genetic Analizer.

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Author notes

  1. L. Tamburino and S. La Vignera contributed equally to the study.

Authors and Affiliations

  1. Department of Clinical and Experimental Medicine, University of Catania, Policlinico “G. Rodolico”, Via S. Sofia 78, Bldg 4, Rm 2C17, 95123, Catania, Italy

    L. Tamburino, S. La Vignera, R. A. Condorelli, R. Cannarella, L. M. Mongioì & A. E. Calogero

  2. Department of Political and Social Sciences, University of Catania, Via Vittorio Emanuele 49, 95100, Catania, Italy

    V. Tomaselli

Authors
  1. L. Tamburino
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  2. S. La Vignera
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  3. V. Tomaselli
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  4. R. A. Condorelli
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  5. R. Cannarella
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  6. L. M. Mongioì
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  7. A. E. Calogero
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Corresponding author

Correspondence to S. La Vignera.

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The authors declare that they have no conflict of interest.

Ethical approval

All procedures involving human participants were in accordance with the ethical standard of institutional research committee and with Helsinki declaration as revised in 2013. This is a clinical study that did not involved animal participants.

Informed consent

Informed consent of the present retrospective study was waived.

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The authors have nothing to disclose

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Tamburino, L., La Vignera, S., Tomaselli, V. et al. The −29G/A FSH receptor gene polymorphism is associated with higher FSH and LH levels in normozoospermic men. J Assist Reprod Genet 34, 1289–1294 (2017). https://doi.org/10.1007/s10815-017-0970-y

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  • DOI: https://doi.org/10.1007/s10815-017-0970-y

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