Summary
Convective cooling of human skin to 20°C or less for 1 h immediately after ultraviolet-B irradiation (UV-B, 290–320 nm) results in a significant increase in erythemal threshold when erythema was observed at 4–6 h postirradiation. Cooling the skin immediately before UV-B irradiation showed no consistent influence on the erythema response. In neither case was an effect of cooling on erythemal threshold apparent when erythema was evaluated at 24 h postirradiation. These effects may be due to alterations in the diffusion kinetics of chemical mediators of inflammation, modification of vascular responsiveness, or reflect changes in temperature-dependent cellular repair or expression of UV-induced damage.
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This work was supported by the Wellman Laboratories
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Shea, C.R., Parrish, J.A. Effects of temperature on ultraviolet-induced erythema of human skin. Arch Dermatol Res 273, 233–239 (1982). https://doi.org/10.1007/BF00409251
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DOI: https://doi.org/10.1007/BF00409251