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Expression of 11β-hydroxysteroid dehydrogenase isoforms in canine adrenal glands treated with trilostane.

Abstract
Trilostane, a competitive inhibitor of 3β-hydroxysteroid dehydrogenase, is often used to treat canine hyperadrenocorticism. In some species, trilostane has been shown to have additional effects on steroid biosynthesis, and it has been postulated that trilostane might have effects on 11β-hydroxysteroid dehydrogenase (11β-HSD) in dogs. To investigate the effect of trilostane on 11β-HSD in canine adrenal glands, healthy Beagle dogs were treated with trilostane for 8 weeks. Trilostane treatment resulted in a significant decrease of the cortisol/cortisone ratio in the serum. The adrenal gland mRNA and protein expression levels of 11β-HSD type 1 and 11β-HSD type 2 were significantly higher and significantly lower respectively in dogs treated with trilostane compared to those in control healthy Beagle dogs. These findings suggest that trilostane may have an effect on 11β-HSD activity in canine adrenal glands.
AuthorsTakahiro Teshima, Hirotaka Matsumoto, Takayuki Kumagai, Mai Kurano, Hidekazu Koyama
JournalVeterinary journal (London, England : 1997) (Vet J) Vol. 200 Issue 3 Pg. 452-5 (Jun 2014) ISSN: 1532-2971 [Electronic] England
PMID24745768 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
CopyrightCopyright © 2014 Elsevier Ltd. All rights reserved.
Chemical References
  • Enzyme Inhibitors
  • Protein Isoforms
  • RNA, Messenger
  • Dihydrotestosterone
  • 11-beta-Hydroxysteroid Dehydrogenases
  • trilostane
Topics
  • 11-beta-Hydroxysteroid Dehydrogenases (genetics, metabolism)
  • Adrenal Glands (drug effects, metabolism)
  • Animals
  • Dihydrotestosterone (analogs & derivatives, pharmacology)
  • Dogs
  • Enzyme Inhibitors (pharmacology)
  • Female
  • Gene Expression Regulation, Enzymologic (drug effects)
  • Male
  • Protein Isoforms (genetics, metabolism)
  • RNA, Messenger (genetics, metabolism)
  • Real-Time Polymerase Chain Reaction (veterinary)

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