Department of Dermatology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
J Cosmet Dermatol. 2020 Jan;19(1):47-54. doi: 10.1111/jocd.13112. Epub 2019 Sep 3.
Melasma is a benign and chronic hypermelanosis characterized by irregular light brown to dark brown patches of hyperpigmentation on the skin. Oral tranexamic acid (TA) or vitamin C (VC) supplementation has been one treatment choice. TA interferes with keratinocyte-melanocyte interactions, and VC functions by reducing melanin production resulting in skin rejuvenation and whitening.
The aim of the present study was to compare the efficacy and safety of Myjet assisted transdermal injection of TA vs VC in the treatment of melasma.
In this split-face controlled trial, 17 patients were randomized to receive eight weekly transdermal injections of TA or VC via Myjet either on the right or the left side of their face. MASI was measured from each side of the face at the baseline, at the middle, and at the end of treatment.
A reduction in MASI was observed for TA and VC separately (P value < 0.05). The difference in efficacy between TA and VC group was not statistically significant (P value 0.05). Both treatments were well tolerated, with no serious adverse events reported.
Weekly TA or VC transdermal injections can be an effective treatment for melasma. Further studies are required to validate these findings.
黄褐斑是一种良性的慢性色素沉着过度性疾病,表现为皮肤出现不规则的浅褐色至深褐色色素斑。口服氨甲环酸(TA)或维生素 C(VC)补充剂是一种治疗选择。TA 通过干扰角质形成细胞-黑素细胞的相互作用,VC 通过减少黑色素的产生来发挥作用,从而实现皮肤的年轻化和美白。
本研究旨在比较 Myjet 辅助透皮注射 TA 与 VC 治疗黄褐斑的疗效和安全性。
在这项分割面部对照试验中,17 名患者被随机分配到右或左面部接受 Myjet 每周 8 次的 TA 或 VC 透皮注射。在基线、治疗中期和治疗结束时分别从面部两侧测量 MASI。
TA 和 VC 分别观察到 MASI 的降低(P 值均<0.05)。TA 和 VC 组之间的疗效差异无统计学意义(P 值=0.05)。两种治疗均耐受良好,未报告严重不良事件。
每周 TA 或 VC 透皮注射可有效治疗黄褐斑。需要进一步的研究来验证这些发现。