The roughness of lip skin is related to the ceramide profile in the stratum corneum

被引:28
作者
Tamura, E. [1 ]
Ishikawa, J. [2 ]
Naoe, A. [3 ]
Yamamoto, T. [1 ]
机构
[1] Kao Corp, Make Up Prod Res Lab, Tokyo, Japan
[2] Kao Corp, Biol Sci Lab, Tokyo, Japan
[3] Kao Corp, Analyt Sci Lab, Tokyo, Japan
关键词
ceramide; lip; roughness; stratum corneum; ATOPIC-DERMATITIS; BARRIER;
D O I
10.1111/ics.12335
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
ObjectiveThe structure of skin on the lips is different from skin at other areas of the body; the water content of the stratum corneum (SC) and the barrier function there is low. Therefore, the lips can easily become dry and rough. The SC plays an important role in the barrier and water-holding functions of the skin. Above all, ceramides (CERs) are important SC lipids which maintain SC functions. The purpose of this study was to clarify the relationship between the degree of lip roughness and the CER profile. MethodsForty-one Japanese female subjects with normal skin (age range 22-52 years; mean 34.1) were enrolled in this study. The degree of lip roughness was scored, the values of capacitance and transepidermal water loss (TEWL) were measured and CER profiles of the SC were analysed using tape-stripping. ResultsThe degree of lip roughness was related to the capacitance values but not the TEWL values. The roughness level correlated with the levels of CER[NH], CER[NP], CER[AH], CER[EOS] and CER[EOH] and the average carbon numbers of CER[NDS], CER[NH] and CER[NP] but not with the level of total CERs. The capacitance values of the lips were related not only with the levels of total CERs but also with the levels of CER[NH], CER[NP], CER[AH], CER[AP], CER[EOS], CER[EOH] and CER[EOP] and with the average carbon numbers of CER[NDS], CER[NS], CER[NH] and CER[NP]. The TEWL values of the lips were related not only with the levels of total CERs but also with the levels of CER[NH], CER[AH], CER[AP], CER[EOS] and CER[EOH]. ConclusionThe relationship between lip roughness and the CER profile was clarified for the first time. The results suggest that not only the level of total CERs but also the specific CER species and their carbon numbers affect the maintenance of SC function. Resume ObjectifLa structure de la peau sur les levres est differente de celle de la peau dans d'autres regions du corps; la teneur en eau du stratum corneum (SC) et la fonction de barriere est faible. Par consequent, les levres peuvent facilement devenir seches et rugueuses. Le SC joue un role important dans les fonctions de barriere et de retention d'eau de la peau. Surtout, les ceramides (CER) sont des lipides du SC importants qui maintiennent les fonctions de SC. Le but de cette etude etait de clarifier la relation entre le degre de rugosite des levres et le profil des CER. MethodesQuarante et un sujets feminins japonais avec la peau normale (tranche d'age 22-52 ans; moyenne 34,1) ont ete inclus dans cette etude. Le degre de rugosite des levres a ete quantifie par un score, les valeurs de la capacitance et de la perte en eau transepidermique (TEWL/PIE) ont ete mesurees et les profils de CER du SC ont ete analyses a l'aide du tape stripping. ResultatsLe degre de rugosite des levres etait lie aux valeurs de capacitance, mais non pas les valeurs de TEWL. Le niveau de rugosite etait en correlation avec les taux de CER [NH], CER [NP], CER [AH], CER [EOS] et CER [EOH] et avec le nombre de carbone moyen des CER [NDS], CER [NH] et CER [NP], mais pas avec le taux des CER au total. Les valeurs de capacitance des levres etaient liees non seulement avec les taux des CER totaux mais aussi avec les taux de CER [NH], CER [NP], CER [AH], CER [AP], CER [EOS], CER [EOH] et CER [EOP] et avec les nombres de carbone moyen des CER [NDS], CER [NS], CER [NH] et CER [NP]. Les valeurs de TEWL des levres etaient liees non seulement avec les taux des CER totaux mais aussi avec les niveaux de CER [NH], CER [AH], CER [AP], CER [EOS] et CER [EOH]. ConclusionLa relation entre la rugosite des levres et le profil CER a ete precisee. Les resultats suggerent que non seulement le taux des CER totaux mais aussi des especes CER specifiques et leurs nombres de carbone affectent le maintien de la fonction SC.
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页码:615 / 621
页数:7
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