Effects of Skin Temperature on UV-induced Erythema and pigmentation in Human Skin in Vivo / 대한피부과학회지
Korean Journal of Dermatology
;
: 326-332, 2003.
Article
Dans Coréen
| WPRIM
| ID: wpr-194587
ABSTRACT
BACKGROUND:
Skin temperature at UV radiation exposure influences acute skin reaction such as erythema and pigmentation. As most biochemical systems are affected by temperature, thermal change preceding or following UV exposure could influence the responses in the way to cause vascular blood flow and change the inflammatory responseOBJECTIVE:
To investigate the influence of thermal change on UV-induced erythema and pigmentation by using objective and quantitative methodMETHODS:
A sunlight fluorescent sunlamp (Waldmann UV 800) was used as a UV light source. Multiple sites of the lower back were irradiated with an increasing doses of UV, which were preceded or followed by heating or cooling. With a reflectance spectrophotometer, we assessed erythema and melanin indices at control, 0.1, 0.5, 1.0 and 2.0 MED dose-exposed sites.RESULTS:
Compared with the only UV-exposed group, skin warming or cooling groups generally showed elevated acute erythema reaction with higher erythema indices. However, thermal changes preceding or following UV exposure had little effect on pigmentation except the post-warming group with UV exposure of 2 MED dose after 2 weeks. Our results indicate that altering the skin temperature modulates the degree of UV-induced erythema, but generally not skin pigmentation.CONCLUSION:
The results in this study show that environmental factors such as heat or cooling have modulating effects on UV-induced skin reaction. These interactions should be considered when dealing with the effects of natural sun exposure or phototherapy.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Photothérapie
/
Peau
/
Température cutanée
/
Lumière du soleil
/
Rayons ultraviolets
/
Pigmentation
/
Pigmentation de la peau
/
Système solaire
/
Érythème
/
Température élevée
Limites du sujet:
Humains
langue:
Coréen
Texte intégral:
Korean Journal of Dermatology
Année:
2003
Type:
Article
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