Kimlin Michael G, Schallhorn Kathryn A
Center for Public Health, Research School of Public Health, Queensland University of Technology, Queensland, Australia 4059.
Photochem Photobiol Sci. 2004 Nov-Dec;3(11-12):1067-70. doi: 10.1039/b404957h. Epub 2004 Nov 17.
Human exposure to sunlight promotes the formation of pre-vitamin D in the skin. Low or marginal levels of vitamin D has been linked to a wide range of human health outcomes, including the development of various types of cancer. However, few data exist on the actual exposure to human due to vitamin D producing ultraviolet radiation. Most studies of human disease and vitamin D have linked latitude and location of residence to expected exposure form the available ambient UV radiation. Human UV exposure for the development of vitamin D depends on a variety of factors such as time spent outdoors, percent available skin, skin type, UV protective devices used and distribution of UV over the human form. In this paper, we investigate how latitude impacts not only on the amount of UV available for vitamin D synthesis, but also the distribution of UV over the human form.
人类暴露于阳光下会促进皮肤中维生素D原的形成。维生素D水平较低或处于边缘水平与多种人类健康结果相关，包括各类癌症的发生。然而，关于人类因产生维生素D的紫外线辐射而实际受到的暴露的数据却很少。大多数关于人类疾病与维生素D的研究都将居住地的纬度和位置与从可用环境紫外线辐射中预期获得的暴露联系起来。人类因维生素D形成而受到的紫外线暴露取决于多种因素，如在户外度过的时间、可暴露皮肤的比例、皮肤类型、所使用的紫外线防护装置以及紫外线在人体上的分布。在本文中，我们研究纬度不仅如何影响可用于维生素D合成的紫外线量，还影响紫外线在人体上的分布。
