Linked Life Data

3770874

Source:http://linkedlifedata.com/resource/pubmed/id/3770874

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1986-12-5
pubmed:abstractText
The hemodynamic effect of moderate K+ depletion in hypertension is unknown. Since severe K+ depletion reduces systemic vascular resistance in normotensive rats, we determined the effect of K+ depletion on the natural history of hypertension in spontaneously hypertensive rats (SHR). Wistar-Kyoto rats (WKY) and SHR were fed a K+-replete, a moderately K+-depleted, or a severely K+-depleted diet. After 6 weeks, systemic vascular resistance was reduced by 25% in WKY on the severely K+-depleted diet while mean arterial pressure and systemic vascular resistance were comparable in WKY on the other two diets. In SHR on the severely K+-depleted diet for 6 weeks, muscle K+ was reduced by 23% and growth rate by 65%. In SHR on the moderately K+-depleted diet, growth rate was reduced by 23% after 3 weeks. By 6 weeks, however, muscle K+ was reduced by 5 to 6% and growth rate was comparable to that in SHR receiving the K+-replete diet. The administration of either K+-depleted diet prevented the development of hypertension (systolic blood pressure: severely depleted, 116 +/- 4; moderately depleted, 122 +/- 3; K+-replete, 155 +/- 5 mm Hg; p less than 0.001 compared with both K+-depleted groups) and reversed established hypertension (systolic blood pressure: severely depleted, 116 +/- 4; moderately depleted, 128 +/- 3; K+-replete, 171 +/- 5 mm Hg; p less than 0.001 compared with both K+-depleted groups). The protective effect of K+ depletion was mediated by a 40% reduction in systemic vascular resistance. These results suggest that K+ depletion has a potent antihypertensive effect in SHR.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0194-911X
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
990-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Potassium depletion ameliorates hypertension in spontaneously hypertensive rats.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't