Background: Stratum corneum hydration (SCH) and transepidermal water loss (TEWL) provide useful information about skin barrier function. This study aimed to determine the value of GPSkin Pro, a new handheld device determining both SCH and TEWL, to measure skin barrier impairment and to monitor barrier function in rosacea in daily practice.
Materials And Methods: Two pilots were performed. Pilot 1: in 27 healthy participants, GPSkin SCH and TEWL were compared to Aquaflux and Epsilon values at the forearm before and after skin barrier perturbation via tapestripping. Moreover, GPSkin values were measured at both cheeks without intervention. Pilot 2: in 16 rosacea patients, GPSkin measurements were performed at the forearm, and at both cheeks before and during anti-inflammatory treatment. They were compared to clinical symptoms and to GPSkin values from pilot 1.
Results: Pilot 1: after merging data from before and after tapestripping, a strong correlation was observed between GPSkin TEWL and Aquaflux (R = 0.9256), and GPSkin SCH and Epsilon (R = 0.8798). Pilot 2: SCH was significantly lower at the cheeks of rosacea patients compared to controls, with a normalizing trend during successful treatment. TEWL was comparable among patients and controls and did not change during treatment at all locations.
Conclusion: The GPSkin determines TEWL and SCH accurately in healthy and impaired skin barrier state and can monitor skin barrier function in rosacea during treatment. The GPSkin device is much more practical compared to previous skin barrier tools when used in clinical practice. Its further validation in other inflammatory skin diseases is recommended.
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http://dx.doi.org/10.1111/srt.12900 | DOI Listing |
Tissue Eng Regen Med
January 2025
Department of Systems Biotechnology, Chung-Ang University, Anseong-Si, Gyeonggi-Do, 17546, Republic of Korea.
Background: Exosomes and exosome mimetics are used as alternatives to cell therapy. They have shown potential in treating skin disorders by fortifying the skin barrier, mediating angiogenesis, and regulating the immune response while minimizing side effects. Currently, numerous studies have applied exosome therapy to treat atopic dermatitis (AD) caused by a weakened skin barrier and chronic inflammation.
View Article and Find Full Text PDFPhotodermatol Photoimmunol Photomed
January 2025
Center for Preventive Medicine and Digital Health, CPD, Division of Public Health, Social and Preventive Medicine, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany.
Background: Due to the global rise in UV radiation, the prevalence of skin cancer is increasing significantly, with outdoor athletes being identified as a particularly vulnerable population group.
Methods: This nationwide, cross-sectional study was conducted among adult coaches from the 10 largest outdoor sports associations in Germany. Their applied prevention measures and the potential for further improvement in prevention were evaluated by guideline based scores (range [0-100]).
J Clin Aesthet Dermatol
January 2025
Dr. Saliou is with The Estée Lauder Companies in Melville, New York.
Objective: The primary objective of these studies was to evaluate the potential of a serum containing Macrocystis pyrifera ferment (MPF-Serum) to both strengthen the barrier of intact skin and enhance barrier recovery after a non-ablative laser procedure or glycolic acid chemical peel.
Methods: Two whole-face clinical trials and three split-face, randomized, controlled clinical trials were conducted in women aged 31 to 65 years. The effect of MPF-Serum on barrier integrity and strength was assessed by transepidermal water loss measurement before and after controlled tape-stripping experiments and in-clinic 70% glycolic acid peel and non-ablative laser procedures.
J Clin Aesthet Dermatol
January 2025
Ms. Pomaville is with Forefront Dermatology in Berwyn, Illinois; the Marquette University College of Health Sciences, PA Studies Program in Milwaukee, Wisconsin; and the University of Dubuque, MSPAS Program, in Dubuque, Iowa.
Seborrheic dermatitis (SD) is an inflammatory skin disease with multifactorial etiology, involving genetic and environmental factors. Many conventional therapies for SD (ie, topical antifungals, topical corticosteroids) are associated with incomplete efficacy, frequent and sometimes rapid disease recurrence, and restrictions on duration of therapy and anatomic sites of application. This may be because they cannot target multiple disease processes and/or are limited by safety considerations.
View Article and Find Full Text PDFACS Biomater Sci Eng
January 2025
Faculty of Biotechnology and Food Engineering, Technion─Israel Institute of Technology, Haifa 3200003, Israel.
The skin, our first line of defense against external threats, combines a physical barrier and a rich microbial community. Disruptions of this community, for example, due to infectious injury, have been linked to a decrease in bacteria diversity and to mild to severe pathological conditions. Although some progress has been made in the field, possibilities/procedures for restoring the skin microbiome are still far from ideal.
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