Linked Life Data

8086237

Source:http://linkedlifedata.com/resource/pubmed/id/8086237

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-10-18
pubmed:abstractText
Vitamin D intoxication is a rare cause of hypercalcemia, which is associated with severe and prolonged morbidity. Hypercalcemia and/or hypercalciuria are the consequence of increases in both intestinal absorption and bone resorption. We report on 7 cases of vitamin D overdose (25-hydroxyvitamin D: 710 +/- 179 nmol/l; normal range: 20-90). The indications for vitamin therapy were osteoporosis (5), hypoparathyroidism (1), and osteomalacia (1). Enhanced bone resorption was demonstrated by increased fasting urinary calcium excretion (0.192 +/- 0.067 mmol/l GFR, normal < 0.045). Sequential biochemical measurements in the hypoparathyroid patient showed the persistence of abnormally elevated fasting urinary calcium and of serum 25-hydroxyvitamin D concentrations, even after normalization of plasma calcium, emphasizing that enhanced bone resorption is a prominent feature of vitamin D action. The intravenous administration of a single infusion of the bisphosphonate clodronate to 3 patients led to a correction of hypercalcemia/hypercalciuria, whereas prednisone therapy given to 2 other cases barely affected the abnormal biochemical values. These results indicate that enhanced bone resorption encountered in vitamin D intoxication could be favorably influenced by bisphosphonate treatment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
8756-3282
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
193-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Hypercalcemia and hyperosteolysis in vitamin D intoxication: effects of clodronate therapy.
pubmed:affiliation
Department of Medicine, University Hospital, Geneva, Switzerland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't