Reactive oxygen species in male reproduction: A boon or a bane?

dc.contributor.authorFinelli, Renata
dc.contributor.authorHenkel, Ralf
dc.contributor.authorBaskaran, Saradha
dc.date.accessioned2020-11-17T12:41:41Z
dc.date.available2020-11-17T12:41:41Z
dc.date.issued2020
dc.description.abstractReactive oxygen species (ROS) are free radicals derived from oxygen during normal cellular metabolism. ROS play a crucial role in the physiological processes and signalling pathways associated with male fertility. At physiological concentrations, ROS act as molecular mediators of signal transduction pathways involved in the regulation of the hypothalamic–pituitary–gonadal axis, spermatogenesis and steroidogenesis. They also trigger the morphological changes required for sperm maturation, such as DNA compaction and flagellar modification. Furthermore, ROS modulate crucial processes involved in the attainment of sperm fertilising ability such as capacitation, hyperactivation, acrosome reaction and sperm–oocyte fusion. Conversely, oxidative stress prevails when the concentration of ROS overwhelms the body's antioxidant defence. Various endogenous and exogenous factors enhance the synthesis of ROS resulting in the disruption of structural and functional integrity of spermatozoa through the induction of apoptotic pathway and oxidation of molecules, such as lipids, proteins and DNA. Therefore, maintenance of a balanced redox state is critical for normal male reproductive functions. This article discusses the dual role of ROS in male reproduction, highlighting the physiological role as well as their pathological implications on male fertility.en_US
dc.identifier.citationHenkel, R. et al. (2020). Reactive oxygen species in male reproduction: A boon or a bane?. Andrologia,52(11), e13577en_US
dc.identifier.issn1439-0272
dc.identifier.urihttp://hdl.handle.net/10566/5441
dc.publisherWileyen_US
dc.subjectFree radicalsen_US
dc.subjectMale infertilityen_US
dc.subjectOxidative stressen_US
dc.subjectReactive oxgen speciesen_US
dc.subjectSpermatozoaen_US
dc.titleReactive oxygen species in male reproduction: A boon or a bane?en_US
dc.typeArticleen_US

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