Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1976-11-1
pubmed:abstractText
Investigations with four dihydrogenated ergot alkaloids, dihydroergotoxine, dihydroergonine, dihydroergostine and dihydro-beta-ergosine indicate that they exert similar dose dependent effects on the sleep-wakefulness cycle of the rat. The duration of wakefulness was increased, non-rapid eye movement (NREM) and, in particular, rapid eye movement (REM) sleep were shortened. 5-Hydroxytryptophan, but not apomorphine, induced similar changes of the rat sleep-wakefulness cycle. Neurochemical studies on rat brain biogenic amines indicate that dihydroergotoxine lowers homovanillic acid (HVA) levels and reduces HVA elevations after morphine or haloperidol in the striatum. In addition, the turnover of serotonin was slowed down and 5-hydroxyindoleacetic acid (5-HIAA) content in the whole brain was reduced. 5-HIAA elevation induced by clozapine was inhibited. These results suggest that the electroencephalographic changes in the rat produced by treatment with dihydrogenated ergot alkaloids reflect an enhanced level of vigilance and could be related to changes of brain biogenic amine metabolism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0004-4172
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1080-3
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
Effects of dihydrogenated ergot alkaloids on the sleep-wakefulness cycle and on brain biogenic amines in the rat.
pubmed:publicationType
Journal Article