Evaluation of surfactant effects on stratum corneum using squamometry, transepidermal water loss measurements and the sorption-desorption test

2002 ◽  
pp. 251-256
Author(s):  
H Heise ◽  
L Küpper ◽  
W Pittermann ◽  
M Kietzmann
Keyword(s):  
Stratum Corneum ◽  
Water Loss ◽  
Transepidermal Water Loss ◽  
Surfactant Effects

Beneficial effects of oral supplementation with ferulic acid, a plant phenolic compound, on the human skin barrier in healthy men

2021 ◽  
pp. 1-7
Author(s):  
Atsushi Suzuki ◽  
Tomoko Nomura ◽  
Hiroko Jokura ◽  
Naoya Kitamura ◽  
Akihiko Fujii ◽  
...  
Keyword(s):  
Ferulic Acid ◽  
Stratum Corneum ◽  
Water Loss ◽  
Nervous Activity ◽  
Skin Barrier ◽  
Transepidermal Water Loss ◽  
Sympathetic Nervous Activity ◽  
Healthy Men ◽  
Stratum Corneum Hydration ◽  
Sympathetic Nervous

Abstract. Ferulic acid (FA) is a phytochemical compound with various physiologic functions. To clarify the effect of FA intake on skin barrier function (SBF), we conducted a placebo-controlled double-blind pilot trial. Sixteen healthy subjects were divided into 2 groups (n = 8) and ingested capsules containing either FA (200 mg) or placebo daily for 2 weeks. Two measures of SBF, transepidermal water loss and stratum corneum hydration, were assessed before and 2 weeks after the start of the study. Autonomic nervous activity, which is suggested to be related to SBF, was also measured. Compared with the values obtained before the start of the study, FA intake significantly reduced transepidermal water loss (from 6.1 ± 1.1 to 4.8 ± 1.0 g/m2/h, p = 0.005) and increased stratum corneum hydration (from 30.1 ± 7.6 to 32.3 ± 8.1 a.u., p = 0.027) after 2 weeks. In addition, the amount change in sympathetic nervous activity was significantly reduced after ingesting the FA capsules compared with the placebo capsules (−0.7 ± 1.6 vs. 1.1 ± 1.4, p = 0.035). These findings suggest that FA supplementation decreases sympathetic nervous activity and strengthens SBF in healthy men.

scholarly journals Effects of Cast Immobilisation on Skin Barrier Function

2020 ◽  
Vol 49 (6) ◽  
pp. 354-359
Author(s):  
Chin Yee Woo ◽  
Mark JA Koh ◽  
Winnie KY Fung ◽  
Cheri SH Chan ◽  
Chong Bing Chua ◽  
...  
Keyword(s):  
Stratum Corneum ◽  
Water Loss ◽  
Barrier Function ◽  
Skin Irritation ◽  
Skin Barrier ◽  
Transepidermal Water Loss ◽  
Skin Barrier Function ◽  
Hair Density ◽  
Cast Immobilisation ◽  
Volar Surface

Introduction: Cast immobilisation remains the mainstay of treatment for various fractures in paediatric patients, yet patients commonly complain of skin irritation and discomfort. This study aimed to perform a qualitative and quantitative evaluation of the effects of cast immobilisation on the skin of children and adolescents. Materials and Methods: Patients aged 6–17 years of age with a fracture treated in a fiberglass short-arm or short-leg cast were recruited. Transepidermal water loss (TEWL), stratum corneum (SC) hydration, hair density and presence of any skin signs were assessed before and after cast. Patients were required to complete a weekly questionnaire to rate itch, malodour, warmth, and dampness of the skin under the cast. Results: A total of 60 subjects completed the study. Thirty-six patients received a short-arm cast; 24 received a short-leg cast. Upon cast removal, TEWL was significantly increased on the volar surface of the arms and legs (P <0.05), and the dorsal surface of the arm (P <0.05). Likewise, SC hydration was significantly increased at most sites (P <0.05), except the volar surface of the leg (P = 0.513). There was no change in hair density. Throughout the duration of casting, there was an increase in itch and malodour scores. Conclusions: Moderate but significant changes in TEWL, SC hydration and subjective symptoms were observed during the duration of cast immobilisation, demonstrating that cast immobilisation for up to 4 weeks exerts moderate adverse impact on patients’ skin. Further studies to explore the use of better materials for cast immobilisation to improve skin barrier function and overall patient satisfaction are warranted. Ann Acad Med Singapore 2020;49:285–93 Ann Acad Med Singapore 2020;49:354–59 Key words: Cast immobilisation, Transepidermal water loss, Stratum corneum hydration

Comparison of Transepidermal Water Loss and Spectroscopic Absorbance to Quantify Changes of the Stratum corneum after Tape Stripping

2005 ◽  
Vol 18 (4) ◽  
pp. 180-185 ◽  
Author(s):  
H.-J. Weigmann ◽  
J. Ulrich ◽  
S. Schanzer ◽  
U. Jacobi ◽  
H. Schaefer ◽  
...  
Keyword(s):  
Stratum Corneum ◽  
Water Loss ◽  
Transepidermal Water Loss ◽  
Tape Stripping
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