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  • Title: Regional variations in thiol distribution pattern and superoxide dismutase activity of the male reproductive tract of the rat modulate the transport of spermatozoa through the epididymis and vas deferens.
    Author: Chatterjee S, Laloraya M, Kumar GP.
    Journal: Urol Int; 2001; 66(2):100-4. PubMed ID: 11223752.
    Abstract:
    BACKGROUND: Contractile activity of the muscular coat of the epididymis wall is considered the major driving force for the propulsion of sperm through the male reproductive tract. METHODS: Region-specific changes in the status of membrane thiols and the free radical scavening potential of the male reproductive tract of the rat were observed. RESULTS: The present study shows that the local biochemical milieu has some influence on the transport of spermatozoa through the male reproductive tract. The vas deferens showed a higher level of superoxide dismutase activity and a low profile of thiol exposure. CONCLUSION: We conclude that the strong scavenging potential and the lesser thiol exposure of the vas create an apparently inert vas lumen which facilitates the transit of spermatozoa through the vas.
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