| pubmed-article:20053937 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0679646 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0024501 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0229671 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0086045 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C1456711 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C1857544 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0042866 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0205251 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0034866 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0521116 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C1512806 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C1521840 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0721534 | lld:lifeskim |
| pubmed-article:20053937 | lifeskim:mentions | umls-concept:C0535968 | lld:lifeskim |
| pubmed-article:20053937 | pubmed:issue | 3 | lld:pubmed |
| pubmed-article:20053937 | pubmed:dateCreated | 2010-2-22 | lld:pubmed |
| pubmed-article:20053937 | pubmed:abstractText | Cutaneous cholecalciferol synthesis has not been considered in making recommendations for vitamin D intake. Our objective was to model the effects of sun exposure, vitamin D intake, and skin reflectance (pigmentation) on serum 25-hydroxyvitamin D (25[OH]D) in young adults with a wide range of skin reflectance and sun exposure. Four cohorts of participants (n = 72 total) were studied for 7-8 wk in the fall, winter, spring, and summer in Davis, CA [38.5 degrees N, 121.7 degrees W, Elev. 49 ft (15 m)]. Skin reflectance was measured using a spectrophotometer, vitamin D intake using food records, and sun exposure using polysulfone dosimeter badges. A multiple regression model (R(2) = 0.55; P < 0.0001) was developed and used to predict the serum 25(OH)D concentration for participants with low [median for African ancestry (AA)] and high [median for European ancestry (EA)] skin reflectance and with low [20th percentile, approximately 20 min/d, approximately 18% body surface area (BSA) exposed] and high (80th percentile, approximately 90 min/d, approximately 35% BSA exposed) sun exposure, assuming an intake of 200 iu/d (5 ug/d). Predicted serum 25(OH)D concentrations for AA individuals with low and high sun exposure in the winter were 24 and 42 nmol/L and in the summer were 40 and 60 nmol/L. Corresponding values for EA individuals were 35 and 60 nmol/L in the winter and in the summer were 58 and 85 nmol/L. To achieve 25(OH)D > or =75 nmol/L, we estimate that EA individuals with high sun exposure need 1300 iu/d vitamin D intake in the winter and AA individuals with low sun exposure need 2100-3100 iu/d year-round. | lld:pubmed |
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| pubmed-article:20053937 | pubmed:language | eng | lld:pubmed |
| pubmed-article:20053937 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:20053937 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:20053937 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:20053937 | pubmed:month | Mar | lld:pubmed |
| pubmed-article:20053937 | pubmed:issn | 1541-6100 | lld:pubmed |
| pubmed-article:20053937 | pubmed:author | pubmed-author:HammockBruce... | lld:pubmed |
| pubmed-article:20053937 | pubmed:author | pubmed-author:StephensenCha... | lld:pubmed |
| pubmed-article:20053937 | pubmed:author | pubmed-author:WoodhouseLesl... | lld:pubmed |
| pubmed-article:20053937 | pubmed:author | pubmed-author:KimlinMichael... | lld:pubmed |
| pubmed-article:20053937 | pubmed:author | pubmed-author:AronovPavel... | lld:pubmed |
| pubmed-article:20053937 | pubmed:author | pubmed-author:SlusserJames... | lld:pubmed |
| pubmed-article:20053937 | pubmed:author | pubmed-author:HallLaura MLM | lld:pubmed |
| pubmed-article:20053937 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:20053937 | pubmed:volume | 140 | lld:pubmed |
| pubmed-article:20053937 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:20053937 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:20053937 | pubmed:pagination | 542-50 | lld:pubmed |
| pubmed-article:20053937 | pubmed:dateRevised | 2011-7-25 | lld:pubmed |
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