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A clinical study of photodynamic therapy with topical application of 5-aminolevulinic acid in urethral warts
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF DERMATOLOGY
- Issue:
- 12
- DOI:
- 10.3760/j.issn:0412-4030.2006.12.002
- Key Word:
- 尖锐湿疣;氨基酮戊酸;原卟啉类;光化学疗法
Abstract： 目的 探讨5-氨基酮戊酸光动力疗法(ALA-PDT)治疗尿道尖锐湿疣的最适ALA浓度和最佳敷药时间.方法 将60例尿道尖锐湿疣患者分为0.5%、1%、3%、5%和10%ALA五组,分别在敷药1、3、5、7 h时取材,进行原位定量原卟啉Ⅸ检测、常规组织病理检查和杂交捕获试验检测高危型、低危型HPV DNA.结果 经不同浓度和时间的ALA湿敷后,皮损局部的表皮内均有不同程度的原卟啉Ⅸ砖红色荧光,荧光基本上分布于表皮全层,而真皮几乎见不到原卟啉Ⅸ荧光.原位定量原卟啉Ⅸ荧光强度在敷药3 h时已经明显升高,在5 h时到达最高峰,7 h时再次下降为3 h时的水平.随着ALA浓度的增高,其组织中原卟啉Ⅸ的荧光强度逐渐增高.经统计学分析,5%和10%ALA组原卟啉Ⅸ荧光强度显著高于其他组(P＜0.05).HPV DNA杂交捕获试验结果显示,尿道尖锐湿疣患者的临床标本中低危型HPV DNA 100%(60/60)阳性,18.3%(11/60)病例同时检测出高危型HPV DNA.结论 ALA-PDT治疗尿道尖锐湿疣的最佳ALA浓度为5%或10%,最佳敷药时间为3～5 h.
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