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- W2034383676 abstract "The vitamin D status was investigated in 94 geriatric patients in a Danish long-stay ward. The influence of mobility and thus possibility of outdoor activity was studied as well as the influence of regular vitamin D intake. Serum levels of 25-hydroxyvitamin D (25-OHD) were significantly reduced in all groups compared with age-matched controls. In 50% of the patients hypocalcaemia and elevated levels of alkaline phosphatase and immunoreactive parathyroid hormone (iPTH) were found in combination with severely reduced serum 25-OHD values (<5 ng/ml) indicating the presence of osteomalacia. Supplementation with 400 IU vitamin D daily in the winter months resulted in significantly higher 25-OHD levels and normocalcaemia while slightly elevated levels of alkaline phosphatase and iPTH persisted. The serum concentrations of 25-OHD were highest in the subjects who were not confined to bed. In these patients the biochemical parameters reflecting osteomalacia were normal. Low serum 1, 25-dihydroxyvitamin D levels were found in the patients with low 25-OHD while 24, 25-dihydroxyvitamin D levels were within the normal range in all groups and correlated with 25-OHD. Daily vitamin D supplementation appears to be indicated for geriatric patients, especially when bedridden, even in countries where the nutritional vitamin D intake is high." @default.
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- W2034383676 date "1987-01-01" @default.
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- W2034383676 title "LOW SERUM LEVELS OF 25-HYDROXYVITAMIN D AND 1,25-DIHYDROXYVITAMIN D IN INSTITUTIONALIZED OLD PEOPLE: INFLUENCE OF SOLAR EXPOSURE AND VITAMIN D SUPPLEMENTATION" @default.
- W2034383676 doi "https://doi.org/10.1093/ageing/16.1.35" @default.
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