Abstract
To investigate whether alpha blocker has an effect on epididymal sperm parameters, intraluminal pressure and fluid movement. Sprague-Dawley rats were given daily oral doses 1 mg./kg., 2 mg./kg., or 10 mg./kg. of Bunazosin, a selective alpha blocker, for 1 month. A micropuncture technique was used to collect intraluminal fluids. Epididymal sperm concentrations were significantly increased. Progressive motility of spermatozoa was not altered. Intraluminal pressures were significantly reduced, and intraluminal fluid movement rates were significantly increased. Alpha blocker has an effect on sperm transport and storage in the rat testis and epididymis.
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