Linked Life Data

3261236

Source:http://linkedlifedata.com/resource/pubmed/id/3261236

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1988-9-21
pubmed:abstractText
Impressive evidence has emerged indicating that immunoassayable and bioassayable CRF, which is immunoneutralizable, is present not only in the hypothalamus but in many peripheral tissues as well. Using highly specific and sensitive RIAs and immunoaffinity chromatography to investigate whether this extrabrain CRF circulates in the rat, we found low but clearly measurable levels in peripheral plasma (mean, 11.4 +/- 0.8 pg/ml). Immunological findings were corroborated by fast protein liquid chromatography, which resolves peptides by both hydrophobicity and ionic charge. With this approach the major immunoreactive peak was eluted at the position of synthetic rat CRF standard. To assess whether levels of peripheral plasma CRF-like immunoreactivity (CRF-LI) vary in parallel with those of hypothalamic CRF-LI, we performed studies with low and high dose dexamethasone administration and withdrawal, adrenalectomy, and hypophysectomy. Seven days after oral administration of dexamethasone, there was a decrement in the levels of peripheral plasma and hypothalamic CRF-LI. Depending on the dose, recovery was also found 7 days after cessation of the treatment. After either adrenalectomy or hypophysectomy, there were increments in the levels of CRF-LI in both peripheral plasma and hypothalamus. Thus, concentrations of CRF-LI in the peripheral plasma and in the hypothalamus vary in parallel in response to alterations in the pituitary-adrenal axis.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0013-7227
pubmed:author
pubmed:issnType
Print
pubmed:volume
123
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1348-54
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Corticotropin-releasing factor levels in the peripheral plasma and hypothalamus of the rat vary in parallel with changes in the pituitary-adrenal axis.
pubmed:affiliation
Department of Medicine, New York University School of Medicine, New York 10016.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.