title: Psoriasis-like lesions in guinea pigs receiving propranolol.
abstract: BACKGROUND
  beta-Blockers cause a psoriasiform eruption. We investigated the skin effects of systemic propranolol in a formal protocol.
  
  
  METHODS
  Propranolol, 0.1 mg/day, was used systemically by gavage in eight albino guinea pigs. Normal saline was given to another group of seven guinea pigs.
  
  
  RESULTS
  Propranolol produced psoriasiform lesions in five of seven guinea pigs on the 30th day. Biopsies showed acanthosis, parakeratosis, microabscesses, and cellular infiltration of upper dermis. Topical application of propranolol did not produce clinical psoriasiform changes, while acanthosis and papillomatosis was observed in six of the six guinea pigs.
authors.affiliation: University of Istanbul, Experimental Medicine Research and Application Center (DETAM), Turkey.
authors.forename: B
authors.initials: B
authors.lastname: Tüzün
authors.forename: Y
authors.initials: Y
authors.lastname: Tüzün
authors.forename: N
authors.initials: N
authors.lastname: Gürel
authors.forename: N
authors.initials: N
authors.lastname: Tüzüner
authors.forename: T
authors.initials: T
authors.lastname: Altug
authors.forename: S
authors.initials: S
authors.lastname: Büyükdevrim
mesh_terms: D000052:Acanthosis Nigricans / Q000139:chemically induced / Q000473:pathology; D000279:Administration, Cutaneous; D000818:Animals; D003875:Drug Eruptions / Q000209:etiology* / Q000473:pathology; D005260:Female; D006168:Guinea Pigs; D008297:Male; D010241:Parakeratosis / Q000139:chemically induced / Q000473:pathology; D011433:Propranolol / Q000008:administration & dosage / Q000009:adverse effects*; D011565:Psoriasis / Q000139:chemically induced* / Q000473:pathology; D011897:Random Allocation
chemical_list: D011433:Propranolol