In vivo characterization of laser-assisted delivery of hyaluronic acid using multiphoton fluorescence lifetime imaging

被引:0
|
作者
Nguyen, Lynhda [1 ,3 ]
Mess, Christian [2 ]
Schneider, Stefan W. [2 ]
Huck, Volker [2 ]
Herberger, Katharina [1 ]
机构
[1] Univ Med Ctr Hamburg Eppendorf, Laser Dept, Dept Dermatol & Venereol, Hamburg, Germany
[2] Univ Med Ctr Hamburg Eppendorf, Dept Dermatol & Venereol, Hamburg, Germany
[3] Univ Med Ctr Hamburg Eppendorf, Laser Dept, Dept Dermatol & Venereol, Martinistr 52, D-20246 Hamburg, Germany
关键词
ablative fractional laser; CO2; laser; hyaluronic acid; hydration; laser-assisted drug delivery; remodelling; DRUG-DELIVERY; EFFICACY;
D O I
10.1111/exd.14961
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
Laser-assisted drug delivery (LADD) is a treatment method to enhance the penetration of pharmaceuticals through the skin. The aim of the present study is to track hyaluronic acid (HA) and analyse its effect on human skin in vivo after ablative fractional laser (AFL) treatment. Healthy male and female subjects were recruited. Four areas were marked on their forearms of each volunteer, and each area was assigned to one of the following treatment options: AFL + HA, AFL only, HA only or untreated control. A carbon dioxide laser was used for the AFL treatment. Follow-up measurements were scheduled 30 min and 30 days after treatment using multiphoton tomography equipped with fluorescence lifetime imaging (MPT-FLIM). A total of 11 subjects completed the study. By detecting fluorescence lifetimes, the HA and the anaesthetic ointment were clearly distinguishable from surrounding tissue. After AFL treatment, HA could be visualized in all epidermal and upper dermal layers. In contrast, HA in intact skin was only detected in the superficial layers at distinctly lower levels. The applied HA gel seemed to have beneficial properties for the wound healing process after laser treatment. LADD has proven to be a fast and effective method to increase HA uptake into the skin, allowing for improved hydration and skin rejuvenation over time. Furthermore, LADD could be a beneficial treatment option in laser resurfacing. MPT-FLIM proved to be an appropriate diagnostic tool for drug delivery tracking and monitoring of treatment response for individualized therapy adjustment.
引用
收藏
页码:2131 / 2137
页数:7
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