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N-二棕榈酰乙醇胺与 N 乙酰乙醇胺对干性湿疹治疗有效:一项针对 60 例患者进行的随机、双盲、对照研究的结果

 

Authors Yuan C, Wang XM, Guichard A, Tan YM, Qian CY, Yang LJ, Humbert P

Published Date July 2014 Volume 2014:9 Pages 1163—1169

DOI http://dx.doi.org/10.2147/CIA.S65448

Received 3 April 2014, Accepted 17 June 2014, Published 17 July 2014

Background: Asteatotic eczema (AE) is characterized by itchy, dry, rough, and scaling skin. The treatments for AE are mainly emollients, usually containing urea, lactic acid, or a lactate salt. N-palmitoylethanolamine (PEA) and N-acetylethanolamine (AEA) are both endogenous lipids used as novel therapeutic tools in the treatment of many skin diseases. The purpose of this study was to compare a PEA/AEA emollient with a traditional emollient in the treatment of AE.
Methods: A monocentric, randomized, double-blind, comparative trial was conducted in 60 AE patients to evaluate and compare the efficacy of the two emollients. The level of skin dryness among the subjects ranged from mild to moderate. The subjects’ skin barrier function and the current perception threshold were tested for 28 days by clinical scoring and bioengineering technology.
Results: The results showed that, although some aspects were improved in both groups, the group using the emollient containing PEA/AEA presented a better skin surface change in capacitance. However, the most impressive finding was the ability of the PEA/AEA emollient to increase the 5 Hz current perception threshold to a normal level after 7 days, with a significant difference between values at baseline and after 14 days. A current perception threshold of 5 Hz was positively and significantly correlated with skin surface hydration and negatively correlated with transepidermal water loss in the PEA/AEA emollient group.
Conclusion: Compared with traditional emollients, regular application of a topical PEA/AEA emollient could improve both passive and active skin functions simultaneously.
Keywords: N-palmitoylethanolamine, N-acetylethanolamine, current perception threshold, skin barrier, pruritus, asteatotic eczema