Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1988-1-29
pubmed:abstractText
Growth hormone (GH) and prolactin (PRL) secretion after GH-releasing hormone (GHRH) and domperidone (DOM), an antidopaminergic drug which does not cross the blood-brain barrier (BBB), was evaluated in 8 healthy elderly men (65-91 years) and in 7 young adults (23-40 years). All received in random order at 2-day intervals: GHRH(1-40) (50 micrograms i.v.) bolus, DOM (5 mg/h) infusion, GHRH(1-40) (50 micrograms i.v.) plus DOM (5 mg/h i.v.), saline solution. In elderly men GH increase after GHRH was significantly lower than in young men. DOM alone did not change GH secretion in either of these groups, whereas it increased the GH response to GHRH only in young adults. PRL levels increased in both young and elderly men during both DOM and GHRH plus DOM, but the PRL release was more marked in young than in elderly men. Both integrated secretion of GH after GHRH and of PRL after DOM were inversely correlated to chronological age. Our data show an impairment of GH rise after GHRH and of PRL after DOM in elderly adults. It is also stressed that peripheral blockade of dopamine receptors by DOM is unable to amplify the GH response to GHRH only in elderly men. A reduction in GH release after GHRH might be related to aging, perhaps through a reduction of dopaminergic tonus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0301-0163
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
134-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Role of aging on growth hormone and prolactin release after growth hormone-releasing hormone and domperidone in man.
pubmed:affiliation
Cattedra di Endocrinologia, Università di Genova, Italia.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial