Abstract
The susceptibility of the skin to various irritants was investigated with the aim of determining the role of the barrier function of the stratum corneum, skin dryness and whether a history of atopic dermatitis (AD) was a factor. The transepidermal water loss (TEWL) was measured using an evaporimeter and skin hydration using a Corneometer and by visual scoring. The group with a history of AD (n = 20) had a lower pre-exposure barrier function and a higher TEWL value following irritant exposure than the group with a history of allergic contact dermatitis (n = 18) and a control group (n = 18). Clinically dry skin was more susceptible than normal skin, though no difference was noted in the pre-exposure barrier function. The increased susceptibility to irritants in those with a past history of AD was probably due to impaired barrier function and/or the presence of a dry skin.
Published Version
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