Skin Barrier Function in Psoriasis and Atopic Dermatitis: Transepidermal Water Loss and Temperature as Useful Tools to Assess Disease Severity

Journal of Clinical Medicine

María-Victoria Segura-Fernández-Nogueras¹  Isabel Pérez-Rodríguez¹  Miguel Soler-Gongora¹  Trinidad Montero-Vilchez²  Alejandro Molina-Leyva²  Salvador Arias-Santiago²  Antonio Martinez-Lopez²  Ana Fernández-González³ 

[1] Dermatology Department, Faculty of Medicine, University of Granada,18001 Granada, Spain;Dermatology Department, Hospital Universitario Virgen de las Nieves, Avenida de Madrid, 15, 18012 Granada, Spain;Instituto de Investigación Biosanitaria GRANADA, 18012 Granada, Spain;

关键词: atopic dermatitis;    homeostasis;    psoriasis;    skin barrier;    transepidermal water loss;   

DOI  :  10.3390/jcm10020359

来源: DOAJ

【 摘 要 】

Multiple diagnostic tools are used to evaluate psoriasis and atopic dermatitis (AD) severity, but most of them are based on subjective components. Transepidermal water loss (TEWL) and temperature are skin barrier function parameters that can be objectively measured and could help clinicians to evaluate disease severity accurately. Thus, the aims of this study are: (1) to compare skin barrier function between healthy skin, psoriatic skin and AD skin; and (2) to assess if skin barrier function parameters could predict disease severity. A cross-sectional study was designed, and epidermal barrier function parameters were measured. The study included 314 participants: 157 healthy individuals, 92 psoriatic patients, and 65 atopic dermatitis patients. TEWL was significantly higher, while stratum corneum hydration (SCH) (8.71 vs. 38.43 vs. 44.39 Arbitrary Units (AU)) was lower at psoriatic plaques than at uninvolved psoriatic skin and healthy controls. Patients with both TEWL > 13.85 g·m⁻²h⁻¹ and temperature > 30.85 °C presented a moderate/severe psoriasis (psoriasis area severity index (PASI) ≥ 7), with a specificity of 76.3%. TEWL (28.68 vs. 13.15 vs. 11.60 g·m⁻² h⁻¹) and temperature were significantly higher, while SCH (25.20 vs. 40.95 vs. 50.73 AU) was lower at AD eczematous lesions than uninvolved AD skin and healthy controls. Patients with a temperature > 31.75 °C presented a moderate/severe AD (SCORing Atopic Dermatitis (SCORAD) ≥ 37) with a sensitivity of 81.8%. In conclusion, temperature and TEWL values may help clinicians to determine disease severity and select patients who need intensive treatment.

【 授权许可】

Unknown