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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1995-4-6
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pubmed:abstractText |
Investigations were carried out as to whether cytoprotective agents such as calcium antagonists can influence vitamin D induced nephrolithiasis. Increased vitamin D levels are found in 10-30% of all calcium oxalate stone formers. Male rats were assigned to one of the following groups: (1) 1,25-dihydroxycholecalciferol (DHCC) (n = 8), (2) 1,25-DHCC + calcium antagonist Goe 6070 (a new 1,4-dihydronaphthyridine, Goedecke, Berlin) (n = 8), or (3) control (n = 8). 1,25-DHCC was administered for 6 days (120 pmol/24 h s.c.), Goe 6070 (1 mg/kg/24 h) by gavage. Clearance studies were performed on day 6. Kidneys were taken for histological examination and determination of calcium tissue content. 1,25-DHCC induced substantial concrement formation, which could be significantly limited by Goe 6070. The calcium tissue content was also reduced (0.17 vs. 0.04 mg/100 mg dry weight). 1,25-DHCC induced a dramatic fall in the glomerular filtration rate (GFR) (3.84 ml/min per kilogram). This reduction could be almost completely inhibited by the concomitant application of Goe 6070 (9.4 ml/min per kilogram; control 10.7 ml/min per kilogram). Goe 6070 did not influence the calcium handling. The results demonstrate a protective effect of Goe 6070 on vitamin D induced nephrolithias. The histological pattern (intracellular and membrane-bound concretions) and the fact that biochemical parameters were not influenced significantly by Goe 6070 indicate that cellular proceses are important for 1,25-DHCC-induced nephrolithiasis.
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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/Calcitriol,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium Channel Blockers,
http://linkedlifedata.com/resource/pubmed/chemical/Go 6070,
http://linkedlifedata.com/resource/pubmed/chemical/Naphthyridines
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pubmed:status |
MEDLINE
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pubmed:issn |
0300-5623
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
22
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
301-3
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:7879315-Animals,
pubmed-meshheading:7879315-Calcitriol,
pubmed-meshheading:7879315-Calcium,
pubmed-meshheading:7879315-Calcium Channel Blockers,
pubmed-meshheading:7879315-Glomerular Filtration Rate,
pubmed-meshheading:7879315-Kidney,
pubmed-meshheading:7879315-Kidney Calculi,
pubmed-meshheading:7879315-Male,
pubmed-meshheading:7879315-Naphthyridines,
pubmed-meshheading:7879315-Rats,
pubmed-meshheading:7879315-Rats, Wistar
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pubmed:year |
1994
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pubmed:articleTitle |
Reduction of vitamin D induced stone formation by calcium.
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pubmed:affiliation |
Department of Urology, Eberhard-Karls University, Tübingen, Germany.
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pubmed:publicationType |
Journal Article
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