Please use this identifier to cite or link to this item: http://hdl.handle.net/11189/7505
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dc.contributor.authorAwoniyi, Dolapo Olaitanen_US
dc.contributor.authorAboua, Yapo Guillaumeen_US
dc.contributor.authorMarnewick, Jeanine Len_US
dc.contributor.authorBrooks, Nicole Len_US
dc.date.accessioned2020-09-16T06:52:22Z-
dc.date.available2020-09-16T06:52:22Z-
dc.date.issued2012-
dc.identifier.citationAwoniyi, D. O., Aboua, Y. G., Marnewick, J. et al. 2012. The effects of rooibos (Aspalathus linearis), green tea (Camellia sinensis) and commercial rooibos and green tea supplements on Epididymal Sperm in oxidative stress-induced rats. Psychotherapy Research, 26(8): 1231-1239. [http://doi.org/10.1002/ptr.3717]en_US
dc.identifier.issn1050-3307-
dc.identifier.issn1468-4381-
dc.identifier.urihttp://hdl.handle.net/11189/7505-
dc.description.abstractReactive oxygen species (ROS) are involved in many physiological functions of mammalian sperm. Numerous endogenous antioxidants belonging to both enzymatic and non-enzymatic groups can remove excess ROS and prevent oxidative stress (OS). This study compares the modulation of OS by rooibos, Chinese green tea and commercial rooibos and green tea supplements in rat sperm. Male Wistar rats (n = 60) were supplemented with fermented rooibos, ‘green’ rooibos, Chinese green tea, rooibos supplement, green tea supplement or water for 10 weeks while OS was induced during the last 2 weeks. Sperm count and motility were significantly higher for rats consuming fermented rooibos and ‘green’ rooibos when compared with the other groups. Catalase activity was significantly higher in the sperm of rats consuming fermented rooibos, ‘green’ rooibos and both the rooibos and green tea supplements. Superoxide dismutase concentration in the sperm of rats supplemented with fermen- ted rooibos, ‘green’ rooibos and green tea was higher. Sperm glutathione levels of rats consuming the fermented and ‘green’ rooibos were also significantly higher. Rooibos fermented and ‘green’ rooibos showed a tendency to lower the levels of ROS and lipid peroxidation when compared with the control group. In conclusion, both rooibos extracts could offer a measure of protection against induced oxidative damage by increasing the antioxi- dant defence mechanisms and thereby improving the sperm quality and functionen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofPsychotherapy Researchen_US
dc.subjectSpermen_US
dc.subjectcatalaseen_US
dc.subjectglutathioneen_US
dc.subjectgreen tea (Camellia sinensis)en_US
dc.subjectoxidative stressen_US
dc.subjectrooibos (Aspalathus linearis)en_US
dc.subjectsuperoxide dismutaseen_US
dc.titleThe effects of rooibos (Aspalathus linearis), green tea (Camellia sinensis) and commercial rooibos and green tea supplements on Epididymal Sperm in oxidative stress-induced ratsen_US
dc.identifier.doihttp://doi.org/10.1002/ptr.3717-
dc.typeArticleen_US
Appears in Collections:HWSci - Journal Articles (DHET subsidised)
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