Light-microscopic stereologic analysis of spontaneous and steroid-induced canine prostatic hyperplasia
A combined light-microscopic and stereologic analysis of the canine prostate was performed under the following experimental conditions: intact and castrated dogs, spontaneous benign prostatic hyperplasia, intact and castrated dogs after treatment with testosterone, 5 alpha-dihydrotestosterone or 3 a...
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Published in | The Journal of urology Vol. 137; no. 3; p. 552 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
United States
01.03.1987
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Abstract | A combined light-microscopic and stereologic analysis of the canine prostate was performed under the following experimental conditions: intact and castrated dogs, spontaneous benign prostatic hyperplasia, intact and castrated dogs after treatment with testosterone, 5 alpha-dihydrotestosterone or 3 alpha-androstanediol in combination with estradiol. Regarding the absolute amounts of the glandular and stromal parts of the prostate as well as the glandular cells, no difference was found among the testosterone, 3 alpha-androstanediol and 5 alpha-dihydrotestosterone treated castrated dogs. Treatment with 5 alpha-dihydrotestosterone or 3 alpha-androstanediol in combination with 17 beta-estradiol induced a four-fold increase in glandular and a two-fold increase in stromal tissue. The glandular to stromal tissue ratio equals that found in spontaneous canine hyperplasia, which is indicative of the glandular type of spontaneous canine hyperplasia. Therefore, it can be stated that treatment with 5 alpha-dihydrotestosterone or 3 alpha-androstanediol combined with 17 beta-estradiol not only induces prostatic overgrowth but also leads to prostatic hyperplasia of the glandular type. However, the stereologic analysis of canine prostates following steroid administration shows that canine hyperplasia is primarily a glandular disease, while human benign prostatic hyperplasia shows more stromal activation. |
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AbstractList | A combined light-microscopic and stereologic analysis of the canine prostate was performed under the following experimental conditions: intact and castrated dogs, spontaneous benign prostatic hyperplasia, intact and castrated dogs after treatment with testosterone, 5 alpha-dihydrotestosterone or 3 alpha-androstanediol in combination with estradiol. Regarding the absolute amounts of the glandular and stromal parts of the prostate as well as the glandular cells, no difference was found among the testosterone, 3 alpha-androstanediol and 5 alpha-dihydrotestosterone treated castrated dogs. Treatment with 5 alpha-dihydrotestosterone or 3 alpha-androstanediol in combination with 17 beta-estradiol induced a four-fold increase in glandular and a two-fold increase in stromal tissue. The glandular to stromal tissue ratio equals that found in spontaneous canine hyperplasia, which is indicative of the glandular type of spontaneous canine hyperplasia. Therefore, it can be stated that treatment with 5 alpha-dihydrotestosterone or 3 alpha-androstanediol combined with 17 beta-estradiol not only induces prostatic overgrowth but also leads to prostatic hyperplasia of the glandular type. However, the stereologic analysis of canine prostates following steroid administration shows that canine hyperplasia is primarily a glandular disease, while human benign prostatic hyperplasia shows more stromal activation. |
Author | Coffey, D S Bartsch, G Bruengger, A Rohr, H P de Klerk, D P |
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SubjectTerms | Androstane-3,17-diol - toxicity Animals Castration Dihydrotestosterone - toxicity Dogs Estradiol - toxicity Male Microscopy - methods Prostate - pathology Prostatic Hyperplasia - chemically induced Prostatic Hyperplasia - pathology Testosterone - toxicity |
Title | Light-microscopic stereologic analysis of spontaneous and steroid-induced canine prostatic hyperplasia |
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