Linked Life Data

6411400

Source:http://linkedlifedata.com/resource/pubmed/id/6411400

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1983-10-8
pubmed:abstractText
In the present study 1 h of total occlusion of the left renal artery in conscious rats was chosen as experimental model of ischemic acute renal failure (ARF), while the contralateral kidney was left intact. Chronic high dietary sodium intake, acute isotonic saline infusion, or administration of saralasin did not protect from ARF. Furosemide, mannitol, and verapamil converted oliguric into non-oliguric ARF in 100%, 75%, and 60% of the animals, resp. Protection from oliguria and preservation of GFR inversely correlated with the depression of cortical ATP-concentration (control: 1.32 +/- 0.07 mumoles/g wet weight) 6 h after ischemia by 16%, 41%, and 58% in mannitol- and verapamil- treated rats and in untreated rats, resp. At this time, Na-K-ATPase enzyme activities in renal cortex and papilla were unaffected, while enzyme activity in outer medulla was suppressed from 15.4 +/- 1.4 to 9.4 +/- 1.0 mumoles Pi/mg protein h in all groups of animals. The results suggest that in this model of ARF renal ischemia not only affects cellular energy supply in renal cortex but also causes severe structural and functional impairment in the outer medulla, probably leading to tubular obstruction and depression of glomerular function. Pharmacological protection from ischemic oliguric ARF cannot be achieved by prior induction of high urine flow rates alone but depends on the degree of metabolic and functional reserve of the injured tubular epithelium.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0276-5497
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
77-99
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Renal functional and metabolic studies on the role of preventive measures in experimental acute ischemic renal failure.
pubmed:publicationType
Journal Article