Abstract
Background
While reproductive technologies are increasingly used worldwide, epidemiologic, clinical and genetic data regarding infertile men with combined genital tract and renal abnormalities remain scarce, preventing adequate genetic counseling.
Methods
In a cohort-based study, we assessed the prevalence (1995–2014) and the clinical characteristics of renal disorders in infertile males with genital tract malformation. In a subset of 34 patients, we performed a detailed phenotype analysis of renal and genital tract disorders.
Results
Among the 180 patients with congenital uni- or bilateral absence of vas deferens (CU/BAVD), 45 (25 %) had a renal malformation. We also identified 14 infertile men with combined seminal vesicle (SV) and renal malformation but no CU/BAVD. Among the 34 patients with detailed clinical description, renal disease was unknown before the assessment of the infertility in 27 (79.4 %), and 7 (20.6 %) had chronic renal failure. Four main renal phenotypes were observed: solitary kidney (47 %); autosomal-dominant polycystic kidney disease (ADPKD, 0.6 %); uni- or bilateral hypoplastic kidneys (20.6 %); and a complex renal phenotype associated with a mutation of the HNF1B gene (5.8 %). Absence of SV and azoospermia were significantly associated with the presence of a solitary kidney, while dilatation of SV and necroasthenozoospermia were suggestive of ADPKD.
Conclusion
A dominantly inherited renal disease (ADPKD or HNF1B-related nephropathy) is frequent in males with infertility and combined renal and genital tract abnormalities (26 %). A systematic renal screening should be proposed in infertile males with CU/BAVD or SV disorders.
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Abbreviations
- ADPKD:
-
Autosomal dominant polycystic kidney disease
- ART:
-
Assisted reproductive technologies
- CU/BAVD:
-
Congenital unilateral/bilateral absence of vas deferens
- ICSI-ET:
-
Intra-cytoplasmic sperm injection followed by embryo transfer
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Collection of the clinical charts were performed according to the rules of the Institutional Ethical Committee of the University Hospital of Toulouse. The institutional ethical committee (University Hospital of Toulouse) approved DNA collection and genetic testing and the study complied with the Declaration of Helsinki revised in 2003.
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Mieusset, R., Fauquet, I., Chauveau, D. et al. The spectrum of renal involvement in male patients with infertility related to excretory-system abnormalities: phenotypes, genotypes, and genetic counseling. J Nephrol 30, 211–218 (2017). https://doi.org/10.1007/s40620-016-0286-5
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DOI: https://doi.org/10.1007/s40620-016-0286-5