Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1976-2-9
pubmed:abstractText
The action of various diuretics on the excretion fraction of urea (Curea/Ccr) was studied in 91 healthy volunteers under conditions of maintained maximal water diuresis. On the basis of previous data on transtubular transport or urea it should be expected that with an increase in the excretion fraction of water (V/Ccr) under the given experimental conditions we should find an increase in Curea/Ccr. After administration of polythiazide, which has a predominantly distal localisation of action in the nephron, Curea/Ccr did not change. After administration of chlorothiazide, furosemide and after i.v. administration of ethacrynic acid there was a marked increase in V/Ccr, ranging from 5.4 to 18%. Despite this there was no significant increase in Curea/Ccr. After i.v. administration of acetazolamide or oral administration of ethacrynic acid Curea/Ccr even showed a statistically significant decrease. These findings suggest that a decrease in proximal tubular reabsorption of water after administration of diuretics during maximal water diuresis is not a decisive factor for the renal excretion of urea. The data suggest that the diuretics affected the permeability of the distal segment of the nephron for urea in the sense of an increase of tubular reabsorption.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-1725
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
140-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Changes in urea clearance after a single dose of diuretics during water diuresis.
pubmed:publicationType
Journal Article