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UVB Irradiation as a Human Pain Model-A Scoping Review
Almuth Lang1, Sascha Hammer2, Thomas Danninger3
1Institute of Cardiovascular Physiology and Pathophysiology, Ludwig Maximilian University, 80539 Munich, Germany.
Life (Basel, Switzerland)
|May 4, 2026
Summary
The ultraviolet B (UVB) sunburn model reliably causes primary inflammatory hyperalgesia in humans. Standardizing UVB methods is crucial for optimizing its use in pain research and drug development.
Area of Science:
- Dermatology
- Pain Research
- Experimental Medicine
Background:
- The ultraviolet B (UVB) sunburn model is a validated human experimental pain paradigm.
- It is frequently utilized in preclinical drug development and for investigating inflammatory pain mechanisms.
Purpose of the Study:
- To conduct a scoping review of UVB-induced cutaneous inflammation in experimental studies.
- Emphasis was placed on methodological characteristics, sensory outcomes, and safety aspects.
Main Methods:
- A systematic literature search was performed for studies published between 1999 and 2025.
- Twelve studies involving 367 participants met the inclusion criteria for the review.
Main Results:
- UVB irradiation consistently induced primary hyperalgesia, peaking 24-48 hours post-exposure.
- Methodological heterogeneity was observed in UVB dose, irradiation, and assessment techniques.
- Secondary hyperalgesia was inconsistently reported, influenced by study conditions.
Conclusions:
- The UVB sunburn model reliably induces primary inflammatory hyperalgesia in humans.
- Standardization of methodological parameters is essential for optimizing its application in mechanistic and early-phase analgesic research.
