Petersen Bibi, Philipsen Peter Alshede, Wulf Hans Christian
Copenhagen University, Bispebjerg Hospital, Bispebjerg Bakke 23, Copenhagen-2400, Denmark.
Photochem Photobiol Sci. 2014 Aug;13(8):1123-5. doi: 10.1039/c4pp00066h.
It has been found that exposure to heat and infrared radiation (IR) can be carcinogenic, and that a combination of ultraviolet radiation (UVR) and IR possibly amplifies carcinogenesis. To investigate how the skin temperature is affected by sunbathing, we measured the skin temperature on 20 healthy volunteers over 6 days' sun holiday in Egypt. Temperatures were measured with an infrared thermometer gun at 8 skin sites on the volunteers while they were indoors in the morning and when sunbathing during the day. Skin temperatures were higher during sunbathing (33.5 °C ± 2.1 °C) (mean ± SD) than when indoors in the morning (32.6 °C ± 1.4 °C) (mean ± SD) (P < 0.0001). The average skin temperature for men was higher than for women by 0.40 °C in the morning (P = 0.02) and by 0.44 °C during sunbathing (P < 0.0001). Our results show that sunbathing has an impact on skin temperature, which possibly by activation of the heat shock response, is likely to contribute to the immediate and delayed effects of UV in a way that has to be found out in future studies.
已发现暴露于热和红外辐射（IR）可能具有致癌性，并且紫外线辐射（UVR）和IR的组合可能会放大致癌作用。为了研究日光浴如何影响皮肤温度，我们在埃及对20名健康志愿者进行了为期6天的日光假期，期间测量了他们的皮肤温度。在志愿者上午在室内时以及白天日光浴时，使用红外测温枪在其8个皮肤部位测量温度。日光浴期间的皮肤温度（33.5℃±2.1℃）（平均值±标准差）高于上午在室内时（32.6℃±1.4℃）（平均值±标准差）（P<0.0001）。男性的平均皮肤温度在上午比女性高0.40℃（P = 0.02），在日光浴期间高0.44℃（P<0.0001）。我们的结果表明，日光浴会影响皮肤温度，这可能通过激活热休克反应，以一种有待未来研究查明的方式，对紫外线的即时和延迟效应产生影响。
