Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1990-6-20
pubmed:abstractText
Extracellular recordings were made from 44 spontaneously active neurosecretory and 43 unidentified neurons in the paraventricular nucleus (PVN) of the hypothalamus in urethane-anesthetized rats. Physiologically hypertonic (+30 mOsm/kg, NaCl or mannitol) and hypotonic (-30 mOsm/kg) solutions were applied by pressure through multibarrel micropipettes to the immediate vicinity of neurons. Of 44 neurosecretory neurons tested, 31 (70%) were unaffected by locally applied osmotic stimulation, and the remaining 13 were excited. Of these 31 osmotically unresponsive neurosecretory neurons, 21 were further tested with very strong hypertonic (+260 mOsm/kg, NaCl) solution, and only 7 were affected. Of 43 unidentified neurons, 28 (65%) were unaffected by osmotic stimulation, and 12 were excited. Accordingly, only parts (30%) of both the neurosecretory and unidentified neurons in the PVN were found to be osmosensitive. We concluded that some neurons in the rat PVN are osmosensitive and osmosensitivity is not specific to neurosecretory neurons in the PVN.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0361-9230
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
493-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Osmotic responses of rat paraventricular neurons by pressure ejection method.
pubmed:affiliation
Department of Physiology, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't