Source:http://linkedlifedata.com/resource/pubmed/id/14678237
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
2003-12-17
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pubmed:abstractText |
1. The level of mRNA expression of epithelial sodium channel (ENaC) subunits was studied in a salt-dependent hypertensive rat strain (Sabra). These rats exhibit high vasopressin levels compared with their normotensive counterparts. We also investigated whether this expression is influenced by changes in the sodium intake/aldosterone axis or in the fluid intake/vasopressin axis. 2. A higher expression of beta- and gamma-subunit mRNA was found in salt-sensitive compared with salt-resistant rats on a normal salt diet. A high-sodium diet did not alter mRNA abundance in either substrain. In contrast, water supplementation in salt-sensitive rats fed the high-sodium diet induced a marked reduction in mRNA abundance of beta- and gamma-subunits. 3. The present study provides evidence that beta- and gamma-subunits of ENaC are differently expressed in the kidney of salt-sensitive and salt-resistant Sabra rats and that their abundance is regulated by vasopressin, not by sodium intake. These results are consistent with the hypothesis that increased vasopressin-dependent ENaC expression and activity may contribute to the pathogenesis of hypertension in salt-sensitive Sabra rats.
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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/Aldosterone,
http://linkedlifedata.com/resource/pubmed/chemical/Protein Subunits,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium Channels,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium Chloride, Dietary,
http://linkedlifedata.com/resource/pubmed/chemical/Vasopressins
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0305-1870
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
30
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
963-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:14678237-Aldosterone,
pubmed-meshheading:14678237-Animals,
pubmed-meshheading:14678237-Disease Models, Animal,
pubmed-meshheading:14678237-Drinking,
pubmed-meshheading:14678237-Epithelial Cells,
pubmed-meshheading:14678237-Hypertension,
pubmed-meshheading:14678237-Kidney Cortex,
pubmed-meshheading:14678237-Male,
pubmed-meshheading:14678237-Protein Subunits,
pubmed-meshheading:14678237-RNA, Messenger,
pubmed-meshheading:14678237-Rats,
pubmed-meshheading:14678237-Rats, Inbred Strains,
pubmed-meshheading:14678237-Sodium Channels,
pubmed-meshheading:14678237-Sodium Chloride, Dietary,
pubmed-meshheading:14678237-Time Factors,
pubmed-meshheading:14678237-Up-Regulation,
pubmed-meshheading:14678237-Vasopressins
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pubmed:year |
2003
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pubmed:articleTitle |
Effect of salt and water intake on epithelial sodium channel mRNA abundance in the kidney of salt-sensitive Sabra rats.
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pubmed:affiliation |
INSERM Unité 367, Paris, France.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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