Linked Life Data

2826210

Source:http://linkedlifedata.com/resource/pubmed/id/2826210

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-2-12
pubmed:abstractText
Vasopressin and oxytocin immunoreactivity (AVP-IR, OT-IR) have been detected in the trigeminal and dorsal root ganglia (TG, DRG) of the rat. We have investigated whether AVP or OT have any neurotransmitter role in these tissues by measuring the effects of the peptides on levels of intracellular second messengers. AVP and OT at concentrations up to 3 x 10(-6) M have no effect on the accumulation of cAMP. However, in tissue prelabelled with 3H-inositol, and in the presence of 10 mM Li+, AVP and OT cause an increase in the accumulation of inositol phosphates (IP), in a dose-dependent manner. AVP causes a maximum stimulation of 1.7 fold of control in TG, (p less than 0.01) and of 2.5 fold in DRG (p less than 0.01) at a concentration of 3 x 10(-7) M. OT causes a maximum stimulation of 1.3 fold of control in TG, (p less than 0.01), and of 1.75 fold of control in DRG, at a concentration of 3 x 10(-6) M. The stimulation of IP turnover by AVP in both tissues is inhibited by the specific V1-antagonist, (CH2)5Tyr(Me)AVP, at a concentration of 2 x 10(-5) M. The V2-agonist, DDAVP, has no effect on IP accumulation in either tissue at concentrations up to 3 x 10(-6) M. The response to exogenous AVP is still present in ganglia incubated in media without added CaCl2. We conclude that the rat TG and DRG contain receptors for AVP, and that these receptors have characteristics associated with the V1 subtype.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0014-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
68
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
299-304
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Vasopressin-induced turnover of phosphatidylinositol in the sensory nervous system of the rat.
pubmed:affiliation
Medical Unit, Charing Cross and Westminster Medical School, Westminster Hospital, London, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't