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Human spermatogenic failure purges deleterious mutation load from the autosomes...
Lopes, Alexandra; Aston, Kenneth I.; Thompson, Emma E; Carvalho, Filipa; Gonçalves, João; Huang, N.; Matthiesen, Rune; Noordam, Michiel J.Gonadal failure, along with early pregnancy loss and perinatal death, may be an important filter that limits the propagation of harmful mutations in the human population. We hypothesized that men with spermatogenic impairment, a disease with unknown genetic architecture and a common cause of male infertility, are enriched for rare deleterious mutations compared to men with normal spermatogenesis. After assaying...
Rare structural variants in severe spermatogenic impairment
Seabra, Catarina MoraisA azoospermia afeta aproximadamente 15% de todos os homens inférteis e é frequentemente causada por anomalias cromossómicas e microdeleções do cromossoma Y. No entanto, em aproximadamente 70% dos casos de azoospermia não-obstrutiva (NOA) as causas permanecem por identificar. Nos últimos anos, a descoberta de variantes genómicas de número de cópia (CNVs), como as causadas por deleções, revelou uma fonte de varia...
Validation of Rare Structural Variants in Portuguese Azoospermic Patients
Seabra, Catarina; Carvalho, Filipa; Gonçalves, João; Mathiesen, Rune; Fernandes, Susana; Ana, Neto; de Sousa, Mário; Barros, Alberto; Amorim, AntónioAzoospermia affects approximately 15% of infertile males. Despite considerable research efforts in the last decades, in the majority of cases the cause remains unidentified. Chromosomal abnormalities and Yq microdeletions have been thoroughly studied, yet only account for 17% of azoospermic men. In fact, little is known about the contribution of the hemizygous X-linked and autosomal genes to male infertility. ...
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