Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1982-9-17
|
pubmed:abstractText |
The effect of hydrostatic pressure (HP) on antidiuretic hormone (ADH) stimulated osmotic water flow (Jv) across the toad urinary bladder was evaluated. Jv for ADH-stimulated bladders was significantly reduced by an elevation of the serosal HP gradient to 1 cm H2O. Subsequent elimination of the HP gradient resulted in a recovery of Jv. Serosal HP also caused a reversible increase in sucrose permeability (P sucrose). For ADH-treated bladders fixed with glutaraldehyde during serosal HP exposure, subsequent exposure to a mucosal or serosal HP gradient caused acceleration or inhibition of Jv, respectively. The reduction in ADH-associated Jv with serosal HP was apparently caused by a back-flux of water through a paracellular pathway. Jv and P sucrose were not affected by mucosal HP during ADH stimulation. The results suggest a specific sensitivity of a paracellular pathway to a small serosal HP gradient in bladders with ADH-stimulated water flow. The reversibility of this effect on P sucrose suggests that the elements comprising the apical junctions are dynamic structures capable of recovering at least some of their permeability properties.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
May
|
pubmed:issn |
0031-6768
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
393
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
243-7
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:6808461-Animals,
pubmed-meshheading:6808461-Biological Transport,
pubmed-meshheading:6808461-Bufo marinus,
pubmed-meshheading:6808461-Epithelium,
pubmed-meshheading:6808461-Female,
pubmed-meshheading:6808461-Hydrostatic Pressure,
pubmed-meshheading:6808461-Osmosis,
pubmed-meshheading:6808461-Permeability,
pubmed-meshheading:6808461-Pressure,
pubmed-meshheading:6808461-Sucrose,
pubmed-meshheading:6808461-Urinary Bladder,
pubmed-meshheading:6808461-Vasopressins,
pubmed-meshheading:6808461-Water
|
pubmed:year |
1982
|
pubmed:articleTitle |
Effect of hydrostatic pressure on ADH induced osmotic water flow in toad bladder.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|