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  • Open Field  (2)
  • 1
    ISSN: 1432-2072
    Schlagwort(e): Open Field
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Experiments were performed to study the effect on “Open Field” behaviour of subthreshold doses of reserpine and chlorpromazine in rats with lowered brain catecholamine or 5-hydroxytryptamine levels. The doses of α-methyltyrosine which are known to lower brain catecholamine contents by 65% remarkably enhanced the effects of antipsychotic agents on ambulation and rearing responses. These effects could be partially antagonized by simultaneous administration of L-DOPA. The lowering of 5-hydroxytryptamine to the extent of 90% by p-chlorophenylalanine failed to modify the effects of these antipsychotic agents. The findings suggest that the brain catecholamines levels play a greater role in the mechanism of antipsychotic agents as compared to 5-hydroxytryptamine levels.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Psychopharmacology 27 (1972), S. 367-372 
    ISSN: 1432-2072
    Schlagwort(e): Open Field ; Amphetamine ; Imipramine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Experiments were performed to study the individual and combined effects of amphetamine and imipramine in rats with lowered brain catecholamines or 5-HT levels. The stereotyped behaviour was studied employing the “Open Field” test apparatus. When the brain catecholamine level was lowered by α-methyl tyrosine, amphetamine failed to induce complex stereotyped behaviour, while disulfiram pretreatment did not significantly alter the complex stereotyped behaviour due to amphetamine. However, pretreatment with either α-methyltyrosine or p-chlorophenylalanine modified the effects of imipramine. Imipramine augmented the amphetamine induced stereotype behaviour. Pretreatment with α-methyl tyrosine, p-chlorophenylalanine or disulfiram altered the behavioural effects due to the interaction of imipramine and amphetamine. These findings suggest that catecholamines, particularly brain dopamine, play a greater role in the stereotype behaviour due to amphetamine and its augmentation by imipramine.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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