Background: Hand eczema is the most common occupational skin disease. The etiology is multifactorial. Systemic alitretinoin, a pan-retinoic receptor agonist, has proven efficacy in the treatment of recalcitrant chronic hand eczema; however, its precise mechanism of action in hand eczema is not fully understood.
Aims: Assessment of the level of expression of retinoid receptors (RAR and RXR) in the skin of patients with hand eczema in an attempt to explain their possible role in the pathogenesis of the disease.
Methods: Thirty patients with hand eczema and 30 age- and sex-matched healthy controls were included. Full clinical examination was done, and tissue levels of retinoic acid receptor (RAR) and retinoid x receptor (RXR) were measured by quantitative real-time PCR (qRT-PCR).
Results: The levels of RAR and RXR expression were significantly downregulated in the patient group compared to the control group; (P < 0.001) for both. In addition, there was a statistically significant negative correlation between Osnabrück Hand Eczema Severity Index (OHSI) and the levels of RAR and RXR expression (P < 0.001).
Conclusion: Deficient retinoid receptor expression has a primary role in the pathogenesis, clinical phenotype, and severity of hand eczema and sheds light on the mechanism of action of retinoids in the treatment of chronic hand eczema.
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http://dx.doi.org/10.1111/ijd.14830 | DOI Listing |
J Eur Acad Dermatol Venereol
February 2025
Inserm U1111, Centre International de Recherche en Infectiologie, Lyon, France.
Dermatologie (Heidelb)
January 2025
Sektion Berufsdermatologie, Zentrum Hautklinik, Universitätsklinikum Heidelberg, Ruprecht-Karls-Universität Heidelberg, Voßstr. 2, 69115, Heidelberg, Deutschland.
The prevalence of psychological disorders in the general population and, therefore, in dermatological and allergological patients continues to increase. Psychodermatology as a branch of dermatology is also becoming ever more relevant in occupational dermatology. Psychological comorbidities and cofactors like depression and anxiety disorders or stress are increasingly important, which must be considered regarding diagnostics and therapy selection.
View Article and Find Full Text PDFJ Med Internet Res
January 2025
Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany.
Background: Hand and foot eczema is a frequent chronic dermatological condition. The persistent itching, pain, and blistering can impair hand and foot function, leading to difficulties in performing tasks requiring fine motor skills. In addition, the impact on the quality of life for affected patients is significant, as the symptoms can be extremely uncomfortable and disruptive to daily activities.
View Article and Find Full Text PDFBr J Dermatol
January 2025
Department of Occupational and Environmental Diseases, University Hospital of Centre of Paris, Hotel-Dieu Hospital, and Department of Dermatology, University Hospital of Centre of Paris, Cochin Hospital, AP-HP, Paris, France AP-HP, Paris, France.
Background: The lack of attention to Chronic Hand Eczema (CHE) and the lack of a specific International Classification of Diseases code for CHE may have limited the assessment of CHE prevalence. To date, prevalence estimates have primarily been derived from (partly small) single-country studies.
Objectives: To estimate the annual prevalence of self-reported physician-diagnosed CHE across socio-demographic characteristics among adults in Canada, France, Germany, Italy, Spain, and the United Kingdom (UK).
J Allergy Clin Immunol
January 2025
The National Allergy Research Centre, Department of Dermatology and Allergy, Copenhagen University Hospital, Herlev-Gentofte, Hellerup, Denmark.
Background: Chronic hand eczema (CHE) is a common skin disease with different subtypes, but knowledge of the molecular patterns associated with each subtype is limited.
Objective: To characterize the CHE transcriptome across subtypes.
Methods: Using RNA-sequencing, we studied the transcriptome of 220 full-thickness skin biopsies collected from palms, dorsa, and arms from 96 patients with CHE and/or atopic dermatitis (AD) and 32 healthy controls.
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