Effects of Soap and Detergents on Skin Surface pH, Stratum corneum Hydration and Fat Content in Infants

Dermatology ◽  
1997 ◽  
Vol 195 (3) ◽  
pp. 258-262 ◽  
Author(s):  
R. Gfatter ◽  
P. Hackl ◽  
F. Braun
Keyword(s):  
Stratum Corneum ◽  
Skin Surface ◽  
Fat Content ◽  
Surface Ph ◽  
Stratum Corneum Hydration ◽  
Skin Surface Ph

scholarly journals Stratum Corneum Hydration and Skin Surface pH Variation Indicate that Organ Blood Flow Is Regulated by Meridian Activity at Certain Hours

2014 ◽  
Vol 2 (4) ◽  
pp. 161-172
Author(s):  
Li-Fan Chuang ◽  
Hong-Nong Chou ◽  
Chin-Kong Hsu ◽  
Hung-Shih Chou ◽  
Ping-Jyun Sung ◽  
...  
Keyword(s):  
Blood Flow ◽  
Stratum Corneum ◽  
Skin Surface ◽  
Organ Blood Flow ◽  
Surface Ph ◽  
Ph Variation ◽  
Stratum Corneum Hydration ◽  
Skin Surface Ph

Topical Applications of a Heparinoid-Containing Product Attenuate Glucocorticoid-Induced Alterations in Epidermal Permeability Barrier in Mice

2021 ◽  
Vol 34 (2) ◽  
pp. 86-93
Author(s):  
Si Wen ◽  
Jiangmei Wu ◽  
Li Ye ◽  
Bin Yang ◽  
Lizhi Hu ◽  
...  
Keyword(s):  
Stratum Corneum ◽  
Skin Surface ◽  
Clobetasol Propionate ◽  
Permeability Barrier ◽  
Surface Ph ◽  
Expression Levels ◽  
Stratum Corneum Hydration ◽  
Epidermal Permeability Barrier ◽  
Skin Surface Ph ◽  
Topical Applications

Introduction: Either systemic or topical glucocorticoids (GCs) can cause significant adverse effects on cutaneous structure and function. Although some products and ingredients can improve GC-induced abnormalities in epidermal permeability barrier, the efficacy is moderate. Prior studies in normal mice showed that topical applications of a heparinoid-containing product, Hirudoid® cream, improve epidermal barrier function by upregulation of epidermal proliferation, expression of mRNA for epidermal differentiation, and lipid production. Objective: The objective of this study was to assess whether topical applications of this product could prevent GC-induced changes in epidermal function in murine skin. Materials and Methods: One group of C57BL/6J mice was treated topically with 0.05% clobetasol propionate twice daily for 6 days, while another group was treated topically with Hirudoid® cream 30 min after each application of clobetasol propionate. Untreated mice served as normal controls. Transepidermal water loss (TEWL) rates, stratum corneum hydration, and skin surface pH were measured using respective probes connected to an MPA5 physiology monitor. qPCR was used to measure the expression levels of mRNA for keratinocyte differentiation-related proteins and lipid synthetic enzymes. Results: Co-applications of Hirudoid® cream with GC minimally, but significantly, increased skin thickness in comparison to GC treatment alone (p < 0.05), in parallel with increased expression levels of mRNA for PCNA in both the dermis and the epidermis. Moreover, Hirudoid® cream largely prevented GC-induced elevation in basal TEWL (p < 0.001) and delay in barrier recovery (p < 0.05), accompanied by upregulation in the expression levels of mRNA for epidermal involucrin, HMGCoA, and SPT1. However, both stratum corneum hydration and skin surface pH were comparable in the skin treated with GC alone versus GC + Hirudoid® cream. Conclusion: Topical heparinoid-containing product can partially prevent GC-induced alterations in some epidermal functions.

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