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  • Title: Alteration of epididymal function and its relation to maturation of spermatozoa.
    Author: Gupta G, Rajalakshmi M, Prasad MR, Moudgal NR.
    Journal: Andrologia; 1974; 6(1):35-44. PubMed ID: 4212924.
    Abstract:
    Alteration of epididymal function and its relation to maturation of spermatozoa was studied in 54 adult male albino rats. Levels of free and bound sialic acid in the spermatozoa and luminal contents of the epididymis and vas deferens were determined. A group of 10 received rabbit antiserum to ovine luteinizing hormone (LHAS) sc .2 ml/day for 5 days. 2 groups of 8 animals each received 2.5 mg cyproterone acetate twice daily for either 15 or 30 days. 16 animals served as intact controls and 12 animals served as castrate controls. Epididymis and vas deferens sperm counts were not affected by LHAS for 5 days or by cyproterone acetate for 15 days; however, sperm counts were decreased in the corpus (p less than .02), cauda (p less than .05), epididymidis and vas deferens (p less than .01) when rats were treated with cyproterone acetate for 30 days. Castration resulted in a marked reduction in all regions within 5 days. In the intact rats spermatozoa sialic acid decreased in the cauda epididymidis (p less than .01) and increased in the vas deferens (p less than .001). Sialic acid concentration was similar in those treated with either LHAS or cyproterone acetate for 30 days. Bound sialic acid in the epididymal fluid increased (p less than .02) to a maximum in the corpus and cauda and decreased in the vas deferens (p less than .05). LHAS or cyproterone acetate caused a reduction in bound sialic acid in the fluid of the epididymis and vas deferens.
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