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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1982-7-8
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pubmed:abstractText |
Mature male beagles were used in studies designed to determine the effect of the steroidal 5 alpha-reductase inhibitor 17 beta-N,N-diethylcarbamoyl-4-aza-4-methyl-5 alpha-androstan-3-one (4-MA) on size, histology, and androgen concentration of the prostate. Subcutaneous administration of 3 or 15 mg/kg/day for 43 days caused a sharp decline in prostate volume. flattening of prostatic epithelial cells, vacuolization of the cytoplasm and pycnosis of the nuclei. Whereas serum testosterone levels remained normal in dogs injected with 3 mg/kg/day, they were lower in those that received 15 mg/kg/day. Concentration of both testosterone and 5 alpha-dihydrotestosterone were reduced in the prostates of dogs that had received either 3 or 15 mg/kg/day of 4-MA. The 15 mg/kg/day level also appeared to adversely affect spermatogenesis. In a 43-day study, 4-MA given orally once each day at levels of 0.1, 0.3, or 1 mg/kg failed to cause a significant decrease in prostate volume. However, daily divided oral doses totaling 1 or 3 mg/kg were given in a 42-day test and both treatment levels produced significant reductions in prostate size.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/17-N,N-diethylcarbamoyl-4-methyl-4-a...,
http://linkedlifedata.com/resource/pubmed/chemical/5-alpha Reductase Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Azasteroids,
http://linkedlifedata.com/resource/pubmed/chemical/Dihydrotestosterone,
http://linkedlifedata.com/resource/pubmed/chemical/Oxidoreductases,
http://linkedlifedata.com/resource/pubmed/chemical/Steroids, Heterocyclic,
http://linkedlifedata.com/resource/pubmed/chemical/Testosterone
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pubmed:status |
MEDLINE
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pubmed:issn |
0270-4137
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
35-44
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:7079196-5-alpha Reductase Inhibitors,
pubmed-meshheading:7079196-Animals,
pubmed-meshheading:7079196-Atrophy,
pubmed-meshheading:7079196-Azasteroids,
pubmed-meshheading:7079196-Dihydrotestosterone,
pubmed-meshheading:7079196-Dogs,
pubmed-meshheading:7079196-Dose-Response Relationship, Drug,
pubmed-meshheading:7079196-Male,
pubmed-meshheading:7079196-Organ Size,
pubmed-meshheading:7079196-Oxidoreductases,
pubmed-meshheading:7079196-Prostate,
pubmed-meshheading:7079196-Spermatogenesis,
pubmed-meshheading:7079196-Steroids, Heterocyclic,
pubmed-meshheading:7079196-Testosterone
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pubmed:year |
1982
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pubmed:articleTitle |
Effect of a new 5 alpha-reductase inhibitor on size, histologic characteristics, and androgen concentrations of the canine prostate.
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pubmed:publicationType |
Journal Article
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