A dose-response study of irritant reactions to sodium lauryl sulphate in patients with seborrhoeic dermatitis and atopic eczema.
The susceptibility of the skin of patients with seborrhoeic dermatitis to surfactant irritation was investigated and compared to that of a group of normal subjects and patients with a history of atopic eczema. Responses to six concentrations of sodium lauryl sulphate (SLS), applied to forearm skin, were assessed clinically and measured by laser Doppler flowmetry. Analysis of dose-response curves showed statistically significant increased susceptibility to SLS-induced irritation in patients with seborrhoeic dermatitis and atopic eczema compared with normal subjects. Increased susceptibility to chemical irritation may be important in the pathogenesis of seborrhoeic dermatitis.
Department of Dermatology, Royal Victoria Infirmary, Newcastle Upon Tyne, UK.
N C
NC
Cowley
P M
PM
Farr
D000293:Adolescent; D000328:Adult; D001783:Blood Flow Velocity / Q000187:drug effects; D003876:Dermatitis, Atopic / Q000503:physiopathology*; D017453:Dermatitis, Irritant / Q000209:etiology*; D012628:Dermatitis, Seborrheic / Q000503:physiopathology*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D008297:Male; D012867:Skin / Q000098:blood supply; D012967:Sodium Dodecyl Sulfate
D012967:Sodium Dodecyl Sulfate