calcium response to vitamin d supplementation
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ID: 177817
2018
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Abstract
Several studies show the importance of serum vitamin D sufficient levels to prevent multiple chronic diseases. However, vitamin D supplementation and its effects on urine calcium excretion remain controversial. The objective of this prospective and interventional study was to evaluate urine calcium excretion in women with normal calciuria or hypercalciuria, once serum vitamin D sufficiency was achieved. We studied 63 women with idiopathic hypercalciuria, (9 with renal lithiasis) and 50 normocalciuric women. Both groups had serum vitamin D levels low (deficiency or insufficiency). Baseline urine calcium excretion was measured before being supplemented with vitamin D2 or D3 weekly or vitamin D3 100.000 IU monthly. Once serum vitamin D levels were corrected achieving at least 30 ng/ml, a second urine calcium excretion was obtained. Although in the whole sample we did not observe significant changes in urine calcium excretion according to the way of supplementation, some of those with weekly supplementation had significant higher urine calcium excretion, 19% (n = 12) of hypercalciuric women and 12% (n = 6) of the normocalciuric group. Monthly doses, also showed higher urine calcium excretion in 40% of hypercalciuric women (n = 4/10) and in 44% (n = 4/9) of the renal lithiasis hypercalciuric patients. In conclusion, different ways of vitamin D supplementation and adequate serum levels are safe in most patients, although it should be taken into account a subgroup, mainly with monthly loading doses, that could increase the calciuria significantly eventually rising renal lithiasis risk or bone mass loss, if genetically predisposed.
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spivacow2018medicinacalcium
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| Authors | ;Francisco R. Spivacow;Elisa E. Del Valle;Valeria S. Pruñonosa;Audri Lizcano;Yira Suárez;Vanina Paz Wasiuchnik |
| Journal | proceedings on: 2016 ieee central america and panama student conference, conescapan 2016 |
| Year | 2018 |
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