2010
DOI: 10.1016/j.fertnstert.2009.10.046
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Sperm DNA fragmentation: mechanisms of origin, impact on reproductive outcome, and analysis

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Cited by 647 publications
(525 citation statements)
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References 103 publications
(131 reference statements)
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“…Despite this, spermatozoa carrying DNA damage are found in the semen of fertile individuals [Spanò et al, 1998]. The origin of this DNA damage has been ascribed to an altered sperm differentiation process, exposure to endogenous oxidative stress or exogenous mutagenic agents, or abortive apoptosis [Aitken and De Iuliis, 2010;Delbes et al, 2010;Sakkas and Alvarez, 2010]. These mechanisms are not mutually exclusive and DNA damage may arise from a combination of these processes.…”
Section: Introductionmentioning
confidence: 99%
“…Despite this, spermatozoa carrying DNA damage are found in the semen of fertile individuals [Spanò et al, 1998]. The origin of this DNA damage has been ascribed to an altered sperm differentiation process, exposure to endogenous oxidative stress or exogenous mutagenic agents, or abortive apoptosis [Aitken and De Iuliis, 2010;Delbes et al, 2010;Sakkas and Alvarez, 2010]. These mechanisms are not mutually exclusive and DNA damage may arise from a combination of these processes.…”
Section: Introductionmentioning
confidence: 99%
“…The origins of DNA damage in the male germ line during either the production or the transport of sperm cells are probably due to multiple causes: (i) apoptosis during the process of spermatogenesis; (ii) DNA strand breaks produced during the remodelling of sperm chromatin in the process of spermatogenesis; (iii) post-testicular DNA fragmentation induced, mainly by oxygen radicals, during sperm transport through the seminiferous tubules and the epididymis; (iv) DNA fragmentation induced by endogenous caspases and endonucleases; (v) DNA damage induced by radiotherapy and chemotherapy; and (vi) DNA damage induced by environmental toxicants [49].…”
Section: Discussionmentioning
confidence: 99%
“…Normally, breaks are physiologically reassembled before spermatozoa are released from germinal epithelium [27], but, as a consequence of testicular injuries, including heat, exposure to toxicant [26,31,34] radiation [37], withdrawal of hormonal support [22,55,61], other testicular pathologies [18] or life habits (smoke, drug use), the repair process could be impaired, so that spermatozoa show high levels of DNA damage [8,49].…”
Section: Discussionmentioning
confidence: 99%
“…Longtemps considéré comme un simple tuyau, l'épididyme apparaît clairement maintenant comme un tissu essentiel à la fertilité mâle. Les phénomènes mis en exergue ici trouvent leur écho en clinique, comme en témoigne une littérature pléthorique qui atteste qu'une fraction importante des infertilités mâles est corrélée à des dommages oxydants des spermatozoïdes affectant la mobilité progressive, perturbant la capacité à réaliser la réaction acrosomique et conduisant à un niveau élevé de fragmentation nucléaire [24][25][26][27][28][29][30][31][32][33][34][35][36][37] …”
Section: Discussionunclassified