Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1990-3-27
pubmed:abstractText
The effect of central osmotic stimulation on oxytocin (OT) secretion from the paraventricular nucleus (PVN) was examined using a newly developed in vivo microdialysis technique. A dialysis probe was inserted into the PVN region and microdialysis was performed in conscious animals. Hyperosmotic solutions were delivered via the dialysis probe, and perfusate and blood samples were collected. OT was consistently detected in the PVN dialysate. Hyperosmotic sodium chloride (1 M) produced a significant increase in dialysate and plasma OT, whereas D-mannitol (2 M) had no effect. These results suggest that (1) in vivo microdialysis may provide a useful technique for the evaluation of neuropeptide secretion from specific brain regions and (2) there are sodium-sensitive cells in the PVN region which respond to increases in extracellular sodium, resulting in an increase in central and peripheral oxytocin secretion.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
506
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
169-71
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Extracellular oxytocin in the paraventricular nucleus: hyperosmotic stimulation by in vivo microdialysis.
pubmed:affiliation
Department of Physiology and Pharmacology, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC 27103.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't