Linked Life Data

590195

Source:http://linkedlifedata.com/resource/pubmed/id/590195

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1978-2-18
pubmed:abstractText
The rat hypothalamo-neurohypophyseal system (HNS) in organ culture has been used as an in vitro system for studying the osmotic control of vasopressin (VP) release. The HNS retains osmotically sensitive components as demonstrated by changes in the rate of VP release following alterations in the osmolality of the culture medium. Increasing the osmolality from 295 to 305 mosmol/kg H2O by the addition of NaCl resulted in a 2.5-fold increase in VP release. VP release was significantly decreased subsequent to reducing the osmolality from 295 to 280 mosmol/kg H2O by the addition of distilled water. Also, VP release was stimulated when the osmolality was increased to 300 mosmol/kg H2O by the addition of mannitol, but not by additions of urea or glucose which resulted in comparable increases in the tonicity of the culture medium. These studies demonstrate that the HNS in organ culture responds appropriately to osmotic challenges within the physiological range, and support Verney's concept of an osmoreceptor inasmuch as both NaCl and mannitol were effective osmotic agents.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0013-7227
pubmed:author
pubmed:issnType
Print
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1834-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Osmotic control of vasopressin release by rat hypothalamo-neurohypophyseal explants in organ culture.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.