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[Mechanism of azelaic acid action in acne].

Abstract
The physiopathologic mechanism of acne seems to be dependent on four main factors: a) sebum production and excretion; b) type of keratinization of the follicular channel; c) microbial colonization of the pilosebaceous unit and d) inflammatory reaction of the perifollicular area. Azelaic acid is effective in the treatment of acne because it possesses an activity against all of these factors. Azelaic acid is a competitive inhibitor of mitochondrial oxidoreductases and of 5 alpha-reductase, inhibiting the conversion of testosterone to 5-dehydrotestosterone. It also possesses bacteriostatic activity to both aerobic and anaerobic bacteria including Propionibacterium acnes. Azelaic acid is an anti-keratinizing agent, displaying antiproliferative cytostatic effects on keratinocytes and modulating the early and terminal phases of epidermal differentiation.
AuthorsS Passi, M Picardo, C De Luca, M Nazzaro-Porro
JournalGiornale italiano di dermatologia e venereologia : organo ufficiale, Societa italiana di dermatologia e sifilografia (G Ital Dermatol Venereol) Vol. 124 Issue 10 Pg. 455-63 (Oct 1989) ISSN: 0392-0488 [Print] Italy
Vernacular TitleMeccanismo di azione dell'acido azelaico nell'acne.
PMID2534550 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Dermatologic Agents
  • Dicarboxylic Acids
  • Testosterone
  • Oxidoreductases
  • Cholestenone 5 alpha-Reductase
  • azelaic acid
Topics
  • Acne Vulgaris (drug therapy, metabolism, physiopathology)
  • Cholestenone 5 alpha-Reductase
  • Dermatologic Agents (pharmacology, therapeutic use)
  • Dicarboxylic Acids (pharmacology, therapeutic use)
  • Humans
  • Keratinocytes (drug effects)
  • Mitochondria (enzymology)
  • Oxidoreductases (antagonists & inhibitors)
  • Propionibacterium acnes (drug effects)
  • Sebum (drug effects, metabolism)
  • Testosterone (metabolism)

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