Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-6-29
pubmed:abstractText
Some 4-fluorinated analogues of 3-oxo-delta 4 steroids and 4-cyano derivatives of progesterone and androstenedione were evaluated as inhibitors of steroid 5 alpha-reductase activity. Inhibitors of this enzyme may be useful in treating prostatic cancer. 4-Fluoroandrostenedione was a modest inhibitor of the rat enzyme (IC50 = 4.08 microM), while 4-cyanoprogesterone was a potent inhibitor of both the rat and human enzymes (IC50 values = 0.045 microM and 0.050 microM respectively). These two steroids were tested in vivo for activity against androgen sensitive organs in WHT mice. 4-Fluoroandrostenedione caused increases in organ weights, suggesting it is an androgen agonist, while the 4-cyano compound displayed modest androgen ablation. Therefore substitutions at the 4-position may produce compounds of therapeutic use in treating prostate cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
8755-5093
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
17-23
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Evaluation of some 4-fluoro- and 4-cyano derivatives of delta 4,3-ketosteroids as inhibitors of testosterone 5 alpha-reductase.
pubmed:affiliation
Drug Development Section, CRC Laboratory, Sutton, Surrey, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't