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Comparison of 5-aminolevulinic acid photodynamic therapy and red light for treatment of photoaging

机译:5-氨基乙酰丙酸光动力疗法与红光治疗光老化的比较

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Objective: The aim of this pilot study was to compare the efficacy of ALA-PDT and red light alone in the treatment of photoaging. Methods: A total of 14 adults with photoaging skin were recruited. ALA-PDT or red light alone was applied to the forearm extensor. Before and after treatment, the treated sites were examined by dermoscopy, the changes in straum corneum (SC) hydration, transepidermal water loss (TEWL), and the L~*a~*b~* values were measured, and microscopic examination of collagens and elastins was performed. Results: After ALA-PDT or red light illumination, the appearance of photoaging lesions improved, SC hydration increased and TEWL decreased. These changes in the ALA-PDT group were more obvious than those in the red light group. No significant change was noticed in the L~*a~*b~* values in both groups. The signs of typical solar elastosis damage were improved in both groups. Conclusions: ALA-PDT showed better skin rejuvenation effect than red light alone.
机译:目的:这项初步研究的目的是比较ALA-PDT和单独使用红光治疗光老化的功效。方法:总共招募了14位具有光老化皮肤的成年人。将ALA-PDT或仅将红光应用于前臂伸肌。在治疗前后,通过皮肤镜检查处理部位,测量角质层(SC)水化,表皮失水(TEWL)的变化以及L〜* a〜* b〜*值,并对胶原进行显微镜检查并进行弹性蛋白。结果:ALA-PDT或红光照射后,光老化病变的外观有所改善,SC水合增加,TEWL减少。 ALA-PDT组的这些变化比红灯组更明显。两组的L〜* a〜* b〜*值均无明显变化。两组中典型的太阳弹性病损害的迹象均得到改善。结论:ALA-PDT比单独的红光显示出更好的嫩肤效果。

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