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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1981-12-21
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pubmed:abstractText |
1. Protein-binding assays have been used to measure plasma 1,25-dihydroxy-vitamin D [1,25-(OH)2D] as well as 25-hydroxy-vitamin D [25-(OH)D] in rats given 10 mg of phosphorus (P) day(-1) kg(-1) as ethane-1-hydroxy-1,1-diphosphonate (EHDP). 2. In control animals given a normal laboratory chow plasma 25-(OH)D and 1,25-(OH)2D were about 40 nmol/l and 300 pmol/l respectively. 3. EHDP produced a decrease of plasma 1,25-(OH)2D to below 50 pmol/l in 2 days. 4. Both in control and in EHDP-treated rats plasma 1,25-(OH)2D increased when dietary calcium (Ca) was restricted to 0.1%, or dietary P to 0.2%, indicating that the well-known stimulatory effect of Ca or P deprivation was at least partially effective in EHDP-treated rats. 5. In response to an increase of the oral supply of vitamin D3 to 65 nmol/day the plasma level of 25-(OH)D rose in both control and EHDP groups. Plasma 1,25-(OH)2D was not increased above the normal value in control rats. In EHDP-treated rats, however, plasma 1,25-(OH)2D rose to a level equal to that in controls, suggesting that the effect of EHDP on plasma 1,25-(OH)2D can be overcome at high precursor concentration.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/25-Hydroxyvitamin D 2,
http://linkedlifedata.com/resource/pubmed/chemical/Calcitriol,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium, Dietary,
http://linkedlifedata.com/resource/pubmed/chemical/Cholecalciferol,
http://linkedlifedata.com/resource/pubmed/chemical/Ergocalciferols,
http://linkedlifedata.com/resource/pubmed/chemical/Etidronic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphorus
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0143-5221
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
61
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
471-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6269791-25-Hydroxyvitamin D 2,
pubmed-meshheading:6269791-Animals,
pubmed-meshheading:6269791-Calcitriol,
pubmed-meshheading:6269791-Calcium, Dietary,
pubmed-meshheading:6269791-Cholecalciferol,
pubmed-meshheading:6269791-Dose-Response Relationship, Drug,
pubmed-meshheading:6269791-Ergocalciferols,
pubmed-meshheading:6269791-Etidronic Acid,
pubmed-meshheading:6269791-Male,
pubmed-meshheading:6269791-Phosphorus,
pubmed-meshheading:6269791-Rats,
pubmed-meshheading:6269791-Rats, Inbred Strains,
pubmed-meshheading:6269791-Time Factors
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pubmed:year |
1981
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pubmed:articleTitle |
Plasma levels of vitamin D metabolites in diphosphonate-treated rats.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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