Antioxidative effects of cysteamine, hyaluronan and fetuin on post-thaw semen quality, DNA integrity and oxidative stress parameters in the Brown Swiss bull.

Abstract:

:The aim of this study was to compare the effectiveness of antioxidants including cysteamine (2.5, 7.5 mm), hyaluronan (0.25, 1 mg ml(-1) ) and fetuin (5, 10 mg ml(-1) ) in the freezing of Brown Swiss bull semen. The best percentages of CASA motilities were achieved with 10 mg ml(-1) of fetuin and 2.5 mm of cysteamine. For sperm morphology, 10 mg ml(-1) of fetuin and 2.5 mm of cysteamine had better protective effects (P < 0.001). The results of hypo-osmotic swelling test showed that the percentage values of membrane integrity in all the groups, excluding that supplemented with 5 mg ml(-1) of fetuin, were higher than those of the control group (P < 0.001). Results obtained for the DNA damage of sperm cells demonstrated that 0.25 mg ml(-1) of hyaluronan, and 2.5 and 7.5 mm of cysteamine led to lower rates of spermatozoa with damaged DNA, compared with the control group (P < 0.001). The maintenance of superoxide dismutase and glutathione peroxidase antioxidant activities following freeze-thawing with 2.5 and 7.5 mm of cysteamine and 10 mg ml(-1) of fetuin was demonstrated to be at a higher level in comparison with the control group (P < 0.001). Malondialdehyde formation was found to be lower in the groups supplemented with 0.25 mg ml(-1) of hyaluronan and 7.5 mm of cysteamine after the freeze-thawing process (P < 0.001).

journal_name

Andrologia

journal_title

Andrologia

authors

Sarıözkan S,Tuncer PB,Büyükleblebici S,Bucak MN,Cantürk F,Eken A

doi

10.1111/and.12236

subject

Has Abstract

pub_date

2015-03-01 00:00:00

pages

138-47

issue

2

eissn

0303-4569

issn

1439-0272

journal_volume

47

pub_type

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