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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1997-6-20
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pubmed:abstractText |
The role of the thiazide-sensitive distal convoluted tubule (DCT) in the hypercalciuria of the spontaneously hypertensive rat (SHR) strain was examined by determining (a) the renal density of the thiazide diuretic receptor with 3H-metolazone, and (b) the renal response to a maximal dose of bendroflumethiazide (BFTZ). We confirm that the renal thiazide receptor density was greater in SHR than WKY (0.936 +/- 0.026 vs. 0.797 +/- 0.045 pmol/mg protein; P = 0.02). Prior to BFTZ the urinary excretion of calcium (0.525 +/- 0.061 vs. 0.274 +/- 0.049 micromol per micromol creatinine, P < 0.01) and sodium (12.6 +/- 1.27 vs. 7.89 +/- 0.926 micromol per micromol creatinine; P < 0.01) were greater in SHR versus WKY. BFTZ decreased the excretion of calcium only in SHR and to a level (0.250 +/- 0.032) not significantly different (P = 0.519) from WKY (0.225 +/- 0.032). Surprisingly, BFTZ increased chloride excretion to a greater extent in WKY than in SHR (P = 0.008). We postulate that hypercalciuria in SHR is a manifestation of incomplete uptake of calcium from the tubule lumen across the apical cell membrane in the DCT of the SHR nephron.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Bendroflumethiazide,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Chlorides,
http://linkedlifedata.com/resource/pubmed/chemical/Diuretics,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium Chloride Symporter Inhibitors
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0085-2538
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
51
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1018-21
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9083265-Animals,
pubmed-meshheading:9083265-Bendroflumethiazide,
pubmed-meshheading:9083265-Calcium,
pubmed-meshheading:9083265-Chlorides,
pubmed-meshheading:9083265-Diuretics,
pubmed-meshheading:9083265-Hypertension,
pubmed-meshheading:9083265-Ion Transport,
pubmed-meshheading:9083265-Kidney Tubules, Distal,
pubmed-meshheading:9083265-Male,
pubmed-meshheading:9083265-Rats,
pubmed-meshheading:9083265-Rats, Inbred SHR,
pubmed-meshheading:9083265-Rats, Inbred WKY,
pubmed-meshheading:9083265-Sodium Chloride Symporter Inhibitors
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pubmed:year |
1997
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pubmed:articleTitle |
Thiazide diuretics normalize urinary calcium in spontaneously hypertensive male rats.
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pubmed:affiliation |
Department of Medicine, School of Medicine, University of California San Diego, La Jolla, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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