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Related Experiment Videos

On some central effects of elymoclavine.

K Roussinov, V Georgiev, V Petkov

    Acta Physiologica Et Pharmacologica Bulgarica
    |January 1, 1984
    PubMed
    Summary

    Elymoclavine, an ergot alkaloid, exhibits dopamine-like effects in animal models, influencing behavior and seizure activity. Its primary action appears to be through dopamine receptors, though other neurotransmitters may also play a role.

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    Area of Science:

    • Pharmacology
    • Neuroscience
    • Ergot Alkaloid Research

    Background:

    • Elymoclavine is an ergot alkaloid derived from Claviceps sp. cp. II.
    • Ergot alkaloids are known for their diverse pharmacological activities.

    Purpose of the Study:

    • To pharmacologically investigate the effects of elymoclavine.
    • To elucidate the mechanism of action of elymoclavine, particularly its interaction with neurotransmitter systems.

    Main Methods:

    • Determined median lethal dose (LD50) in mice and rats.
    • Assessed behavioral effects in rats and mice, including stereotypy, catalepsy, and exploratory activity.
    • Investigated effects on seizure models (picroroxin, electroshock, pentylenetetrazol).
    • Utilized antagonists like haloperidol, pimozide, and cyproheptadine to probe neurotransmitter involvement.

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    Main Results:

    • Elymoclavine demonstrated dose-dependent stereotypy in rodents, antagonized by haloperidol and pimozide.
    • It prevented haloperidol-induced catalepsy and caused contralateral rotations after 6-hydroxydopamine (6-OHDA) striatal lesions.
    • Exploratory activity was increased and antagonized by haloperidol, indicating dopaminergic influence.
    • Elymoclavine inhibited some seizures but potentiated others, with complex interactions with various neurotransmitter systems.

    Conclusions:

    • The primary mechanism of elymoclavine's observed effects is likely its dopaminergic agonistic action.
    • Modulation of other neurotransmitter receptors may also contribute to elymoclavine's overall pharmacological profile.