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通过微晶磨皮选择性去除角质层以增加皮肤通透性。

Selective removal of stratum corneum by microdermabrasion to increase skin permeability.

作者信息

Gill Harvinder S, Andrews Samantha N, Sakthivel Senthilkumar K, Fedanov Andrew, Williams Ifor R, Garber David A, Priddy Frances H, Yellin Seth, Feinberg Mark B, Staprans Silvija I, Prausnitz Mark R

机构信息

Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0100, USA.

出版信息

Eur J Pharm Sci. 2009 Sep 10;38(2):95-103. doi: 10.1016/j.ejps.2009.06.004. Epub 2009 Jun 25.

Abstract

This study sought to determine if microdermabrasion can selectively remove stratum corneum to increase skin permeability. Although, microdermabrasion has been used for cosmetic treatment of skin for decades, no study has assessed the detailed effects of microdermabrasion conditions on the degree of skin tissue removal. Therefore, we histologically characterized the skin of rhesus macaques and human volunteers after microdermabrasion at different conditions. Using mobile tip microdermabrasion, an increase in the number of treatment passes led to greater tissue removal ranging from minimal effects to extensive damage to deeper layers of the skin. Of note, these data showed for the first time that at moderate microdermabrasion conditions selective yet full-thickness removal of stratum corneum could be achieved with little damage to deeper skin tissues. In the stationary mode of microdermabrasion, selective stratum corneum removal was not observed, but micro-blisters could be seen. Similar tissue removal trends were observed in human volunteers. As proof of concept for drug delivery applications, a model fluorescent drug (fluorescein) was delivered through microdermabraded skin and antibodies were generated against vaccinia virus after its topical application in monkeys. In conclusion, microdermabrasion can selectively remove full-thickness stratum corneum with little damage to deeper tissues and thereby increase skin permeability.

摘要

本研究旨在确定微晶磨皮术是否能选择性去除角质层以增加皮肤通透性。尽管微晶磨皮术已用于皮肤的美容治疗数十年,但尚无研究评估微晶磨皮条件对皮肤组织去除程度的详细影响。因此,我们对不同条件下微晶磨皮术后的恒河猴和人类志愿者的皮肤进行了组织学特征分析。使用移动探头微晶磨皮术,治疗次数的增加会导致更大程度的组织去除,范围从最小影响到对皮肤深层的广泛损伤。值得注意的是,这些数据首次表明,在适度的微晶磨皮条件下,可以实现角质层的选择性但全层去除,而对深层皮肤组织的损伤很小。在固定模式的微晶磨皮术中,未观察到角质层的选择性去除,但可见微水泡。在人类志愿者中也观察到了类似的组织去除趋势。作为药物递送应用概念验证,一种模型荧光药物(荧光素)通过微晶磨皮后的皮肤递送,并且在猴子局部应用牛痘病毒后产生了针对牛痘病毒的抗体。总之,微晶磨皮术可以选择性地全层去除角质层,对深层组织的损伤很小,从而增加皮肤通透性。

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