Ceramides and Barrier Function in Healthy Skin
نویسندگان
چکیده
منابع مشابه
Ceramides and barrier function in healthy skin.
Lipids in the stratum corneum are key components in the barrier function of the skin. Changes in lipid composition related to eczematous diseases are well known, but limited data are available on variations within healthy skin. The objective of the present study was to compare ceramide subgroups and ceramide/cholesterol ratios in young, old, male and female healthy skin. A total of 55 participa...
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The aim of this study was to investigate the relationship between the mechanical properties and the epidermal barrier function of the skin in vivo. A suction cup device commonly used for measurement of skin mechanics was used to provide a defined stress to the skin using the ventral forearm in 16 healthy volunteers. The integrity of the barrier function was assessed by trans-epidermal water los...
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Aryl hydrocarbon receptor nuclear translocator (ARNT), a transcription factor of the Per/AHR/ARNT/Sim family, regulates gene expression in response to environmental stimuli including xenobiotics and hypoxia. To examine its role in the epidermis, the Cre-loxP system was used to disrupt the Arnt gene in a keratinocyte-specific manner. Gene-targeted, newborn mice with almost normal appearance died...
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Under normal circumstances, epidermis must be as impermeable as possible except for a small amount of water loss to hydrate the outer layers of the SC. Although all living cells require water to function, some “dead” cells also require water to be metabolically active. As it is the case of corneocytes, epidermis must retain sufficient water to (a) hydrate the outer layers of the SC to maintain ...
متن کاملLipids and barrier function of the skin.
The purpose of the present manuscript is to review the chemical and physical properties of epidermal lipids and to relate these properties to the formation and function of the permeability barrier of the skin. Lipids accumulate in small organelles known as lamellar granules as epidermal keratinocytes differentiate. This lipid is extruded into the intercellular spaces where it undergoes enzymati...
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ژورنال
عنوان ژورنال: Acta Dermato Venereologica
سال: 2010
ISSN: 0001-5555
DOI: 10.2340/00015555-0894