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- W10136439 abstract "Primates in captivity, depending on the local infrastructure, may be subject to different periods of exposure to sunlight. This is an important fact since the ultraviolet rays have an important function in the vitamin D activation. Vitamin D is essential for de maintenance of the bone health and, in human beings takes an active part on the regulation of various metabolic functions as, for example, in immunologic defenses and in the protection against autoimmune disorders and cancer. In the present study were included primates originating from National Primates Center (Para) and from the Primates Research Center of Brasilia (DF). In the former center, the installations for housing these simian are completely covered not allowing any exposure to sunlight or warranting, during few morning or afternoon hours, only a partial exposure. In contrast, in the Primates Research Center of Brasilia the simians are housed in habitats providing open areas that allow an unrestricted exposure to sun. The aim of the present study was to evaluate the 25(OH) vitamin D concentrations in both simian groups and correlate the vitamin D concentrations found with the degree of sunlight exposure and with the simian genre and to establish a curve of normal values for animals in captivity. Three groups of simians were formed: group 1 with 29 animals, with unlimited exposure to sun; group 2 with 34 animals, with partial exposure to sunlight; and group 3 with 21 animals with null access to sunlight. Blood samples were obtained from the 84 simians and 25(OH) vitamin D concentrations were determined utilizing (kit e fabricante). Statistical analysis was performed using the soft SPSS, version 13. The difference in 25(OH)D blood levels between group 3 (null exposure to sun) and group 1 (partial exposure to sun) showed p value of <0,001. The difference between group 3 and group 2 (with partial exposure to sun) showed a p value of <0,001. No significant statistical difference was observed between the group with unlimited exposure to sun (group 1) and group with partial exposure (group 2) (p=0,605) and also between the genres.%%%%Dependendo das condicoes de infra-estrutura local, primatas que vivem em cativeiro podem ter diferentes frequencias de exposicao a luz solar. Este fato e importante, uma vez que os raios ultravioletas desempenham papel importante na ativacao da vitamina D, a qual e essencial a manutencao da qualidade ossea dos vertebrados e nos seres humanos participa ativamente da regulacao de varios aspectos metabolicos, como competencia imunologica e protecao contra doencas auto-imunes e alguns tipos de câncer. Neste estudo participaram os animais do Centro Nacional de Primatas (Para), os quais por viverem em galpoes totalmente cobertos em sua parte superior nao recebem a incidencia de luz solar, ou a recebem apenas no inicio e termino do dia; e animais do Centro de Pesquisa da Universidade de Brasilia (Distrito Federal), que tem em seu recinto uma area descoberta, possibilitando assim, maior acesso dos animais aos raios solares. Os objetivos…" @default.
- W10136439 created "2016-06-24" @default.
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- W10136439 date "2008-06-01" @default.
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- W10136439 title "Níveis de 25 (OH) vitamina D entre primatas de espécie Callithrix penicillata, expostos e não expostos a luz solar" @default.
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