Abstract
ABSTRACT The responses of several seminal vesicle in vivo microscopic characteristics, seminal vesicle contractions, seminal vesicle, kidney and adrenal weights and seminal vesicle histology have been compared following the administration of testosterone propionate (T. P.) and norethandrolone (19-NT) to castrated male rats. Fourteen days after castration 35 male Osborne-Mendel rats were divided into 5 groups each containing 6 to 8 animals and given daily subcutaneous injections of 0.1 ml sesame oil with or without added steroids. The groups were: I – sesame oil; II – 100 μg 19-NT; III – 500 μg 19-NT; IV – 100 μg T.P.; V – 500 μg T. P. After 7 days of injections, seminal vesicles were studied by the transillumination method of Knisely. The seminal vesicles, adrenals and kidneys were then removed and weighed and the vesicles were prepared for routine histological examination. The adrenal and kidney weights, as well as the seminal vesicle contractions, responded to both steroids in a similar manner, however, seminal vesicle weight and histology and in vivo characteristics differed greatly. 19-NT appeared to have very little effect on vesicle weight, in vivo characteristics and histology although contractions were inhibited in 13 of 14 animals so treated. Therefore, when used as the end-point in hormonal reactions, seminal vesicle contractions should not be considered comparable to the usual secondary sexual organ reactivity to hormones.
Published Version
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