Background/aim: Narrowband UVB (Nb UVB) treatment is commonly used for the management of psoriasis and atopic dermatitis, and is less often used for vitiligo in children. The aim of this study was to evaluate the efficacy and short-term safety of Nb UVB phototherapy in children diagnosed with vitiligo retrospectively.
Materials And Methods: A total of 26 patients younger than 18 years with the diagnosis of vitiligo and managed with Nb UVB phototherapy as documented in archive records were evaluated. Clinical response was assessed according to repigmentation of the lesions: good response when there was more than 75% repigmentation, moderate response when there was 25%-74% repigmentation, poor response when repigmentation was less than 24%, and unresponsive when there was no pigmentation and new lesions occurred.
Results: A total of 26 patients received Nb UVB treatment; 14 were girls and 12 were boys. The age at onset of the disease varied between 2 and 18 years, with a mean age of onset of 10.07 ± 4.53 years. Repigmentation rate of >75% was detected in 45.4% of cases.
Conclusion: Nb UVB phototherapy seems to be a well-tolerated effective and safe treatment option in children, especially those unresponsive to topical treatment and those with widespread lesions. However, long-term risks such as photocarcinogenesis and photoaging should kept in mind.
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http://dx.doi.org/10.3906/sag-1512-59 | DOI Listing |
Sci Total Environ
December 2024
Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan. Electronic address:
The effect of ultraviolet (UV) light on structural changes is a significant concern, particularly regarding the weathering and aging effects on microplastics (MPs). This research focused on examining how various UV light wavelengths (UVC, UVB, and UVA) influence the adsorption behavior of aged polyethylene (PE) MPs toward tetracycline (TC). To explore the adsorption mechanism in detail, adsorption kinetics were studied under different UV light wavelengths.
View Article and Find Full Text PDFJ Am Acad Dermatol
December 2024
Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. Electronic address:
Background: Ritlecitinib demonstrated efficacy in a phase 2b trial of nonsegmental vitiligo.
Objective: To evaluate the efficacy and tolerability of ritlecitinib with add-on narrow-band UVB (nbUVB) phototherapy in patients with nonsegmental vitiligo.
Methods: Following a 24-week, placebo-controlled, dose-ranging period, patients received ritlecitinib 200mg for 4 weeks then 50mg for 20 weeks, with or without nbUVB phototherapy 2x/week.
Aging Cell
December 2024
Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research "Demokritos", Athens, Greece.
Ultraviolet B (UVB) radiation is a major contributor to skin photoaging. Although mainly absorbed by the epidermis, UVB photons managing to penetrate the upper dermis affect human dermal fibroblasts (HDFs), leading, among others, to the accumulation of senescent cells. In vitro studies have shown that repeated exposures to subcytotoxic UVB radiation doses provoke HDFs' premature senescence shortly after the end of the treatment period.
View Article and Find Full Text PDFMolecules
November 2024
Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan.
is a red macroalga known for its bioactive compounds with antioxidant, anti-inflammatory, and skin-regenerative properties. The study aimed to examine their effects on UV protection, collagen synthesis, fibroblast proliferation, and pigmentation modulation. Bioactive compounds were extracted using two solvents, producing ethanol extract (FE) and alkaline extracts (AE).
View Article and Find Full Text PDFNutrients
November 2024
Faculty of Medicine, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
Introduction: From the observation of a negative relationship between UV-B exposure and cancer rates, we hypothesized that vitamin D (VD) may play a protective role in oncogenesis. Moreover, repurposing a well-known and relatively safe drug for conditions with dismal prospects, such as pancreatic ductal adenocarcinoma (PDAC), is a tempting idea. Thus, we aimed to summarize the current knowledge regarding the role of VD in the prevention and treatment of PDAC.
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