HMB-45 Study Before and After Narrow-Band (311 nm) Ultraviolet B Treatment in Vitiligo
نویسندگان
doi
10.5812/jjhr.28712v2چکیده
Background: Vitiligo is an acquired disease in which the loss of functional melanocytes results in depigmented macules and patches. Over the years, wide arrays of markers for melanocytes have been described, including human melanoma black 45 (HMB-45). Narrow-band ultraviolet B (NB-UVB) therapy is one of the therapeutic modalities for vitiligo. Objectives: We sought to detect HMB-45 staining after 30 sessions of NB-UVB therapy in vitiligo and perivitiliginous skin. Results: Twenty-nine patients completed the study. The Wilcoxon test showed a meaningful relation between HMB-45 staining before and after NB-UVB treatment in perilesional skin. We did not find a meaningful relation between HMB-45 staining before and after treatment regarding the mean age, gender, mean duration of disease, and initial lesional area (P = 0.55, P = 0.41, P = 0.55, and P = 0.87, respectively). After 30 sessions of NB-UVB therapy, repigmentation was less than 40% in 8 (27.6%), 40 - 75% in 7 (24.1%), and more than 75% in 6 patients. Conclusions: The HMB-45 stain strength significantly changed after treatment in perilesional skin.