科研之友
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摘要
background - the great concern about skin cancer risk led to the dissemination of photoprotection in high scale. nowadays the association of this recommendation and the risk of develop hypovitaminosis d is discussed. objective - to evaluate vitamin d storage in patients submitted to sun protection. methods - the levels of 25-hydroxyvitamin d (25ohd) and parathyroid hormone (pth) were evaluated in groups of individuals living in the city of sˋo paulo who received or not orientation about photoprotection. results - significant differences in 25ohd levels were found between the groups, being higher in the photoexposed group (35.40 ng/ml [21.86-72.20]) as compared to the photoprotected group (29.20 ng/ml [23.10-45.80]). there was also difference in pth levels, being higher in the photoexposed group (29.80 pg/ml [18.98-73.94]) in comparison to the photoprotected group (19.24 pg/ml [8.06-66.18]). conclusions - despite these differences, there were no individuals presenting vitamin d deficiency in this sample and pth levels were within normal range. the routine solar ultraviolet radiation was enough to promote appropriate synthesis of 25ohd.
