Related Experiment Video
Updated: Jun 10, 2026

Studying Chronic Exposure of Mice to Ultraviolet B Radiation
Published on: August 19, 2025
Narrow band UVB: is it effective and safe for paediatric psoriasis and atopic dermatitis?
M Pavlovsky1, S Baum, D Shpiro
1Department of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel. masha_krup@yahoo.com
Insights
Narrow-band UVB (NB-UVB) phototherapy shows promise for treating pediatric psoriasis and atopic dermatitis (AD), with good tolerability. Longer follow-up is needed to confirm long-term safety and efficacy in children.
Area of Science:
- Pediatric Dermatology
- Phototherapy Research
- Dermatologic Treatments
Background:
- Phototherapy is established for adult skin conditions but limited in children due to cancer concerns.
- Few trials exist on pediatric phototherapy efficacy and safety.
- Concerns about long-term carcinogenic potential restrict its use in pediatric populations.
Purpose of the Study:
- To evaluate the efficacy and safety of narrow-band UVB (NB-UVB) phototherapy.
- To assess treatment outcomes for children diagnosed with atopic dermatitis (AD) and psoriasis.
Main Methods:
- Retrospective review of 129 pediatric patients with psoriasis and AD.
- Treatment administered between 1998 and 2006 using NB-UVB.
- Analysis of treatment outcomes, including disease clearance and adverse events.
Main Results:
- Clearance achieved in 50% of pediatric psoriasis patients.
- Clearance achieved in 25% of pediatric atopic dermatitis patients.
- NB-UVB was well-tolerated; one suspected case of melanoma in situ was noted.
Conclusions:
- NB-UVB is a potential therapeutic option for pediatric psoriasis and AD.
- Annual dermatologic observation is recommended for children undergoing phototherapy.
- Extended follow-up studies are essential to ascertain the true carcinogenic risk of UV therapy in children.
Background:
Phototherapy has a time-honoured place in the treatment of variety of skin diseases in adults. The use of this modality in children is limited mainly due to concerns about long-term carcinogenic potential. Only a few clinical trials have been performed on the efficacy and safety of phototherapy in children.
Objectives:
To determine the efficacy and safety of NB-UVB phototherapy in children with atopic dermatitis (AD) and psoriasis.
Methods:
This is a retrospective review of the treatment outcomes of 129 children with psoriasis and AD, who were treated with NB-UVB between 1998 and 2006 at our institute.
Results:
Fifty per cent of the psoriatic patients and 25% of patients with AD achieved clearance by the end of the treatment. NB-UVB phototherapy was well-tolerated, with no serious adverse effects except one doubtful case of melanoma in situ.
Conclusions:
NB-UVB may be considered as a viable therapeutic option in children with psoriasis and AD. Children who are treated by phototherapy should remain under annual dermatologic observation. To determine true carcinogenic risk of UV therapy, longer follow-up is essential.
Related Concept Videos
Acne Infection
Pharmacokinetics in Pediatric Patients: Drug Excretion
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
UV–Vis Spectrum
The UV–Vis spectrum of a molecule is the plot of its absorbance versus wavelength. The plot is drawn by taking molar absorptivity (ε) or log ε on the y-axis (ordinate)...
Mutations
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

