Linked Life Data

7315969

Source:http://linkedlifedata.com/resource/pubmed/id/7315969

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1982-2-12
pubmed:abstractText
Mineralocorticoid and glucocorticoid effects on colonic electrolyte absorption were compared by examining the alterations caused by spironolactone and amiloride in corticosteroid-treated rats. Animals were treated for 3 days with deoxycorticosterone acetate (DOCA; 0.5 mg . 100 g-1 . day-1), methylprednisolone (MP; 3 or 0.5 mg . 100 g-1 . day), and spironolactone (14 mg . 100 g-1 . day-1 im) singly or in combination. On day 4, rats were anesthetized with pentobarbital sodium and perfused in vivo with Ringer-HCO3 solution. Both doses of MP and DOCA increased net colonic sodium and water absorption and mucosal Na-K-ATPase activity. Concurrent spironolactone treatment completely prevented these effects in DOCA-treated rats but had no effect in MP-treated rats. Untreated, MP-treated, and DOCA-treated animals were perfused with a Ringer-HCO3 solution containing 1 mM amiloride. Amiloride reduced net colonic sodium and water absorption, transmural potential difference, and potassium secretion in all rats by approximately 55%. These effects were almost immediate and completely reversible. These findings in the rat suggest that 1) different receptors mediate the colonic effects of mineralocorticoids and glucocorticoids and 2) these corticosteroids do not differ in their relative effects on amiloride-sensitive and amiloride-resistant colonic sodium transport processes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0002-9513
pubmed:author
pubmed:issnType
Print
pubmed:volume
241
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
G300-5
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Effects of spironolactone and amiloride on corticosteroid-induced changes in colonic function.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.