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Related Experiment Videos

Bromocriptine in Huntington chorea.

R Kartzinel, R D Hunt, D B Calne

    Archives of Neurology
    |July 1, 1976
    PubMed
    Summary

    Bromocriptine, a dopamine agonist, worsened chorea in Huntington disease patients, unlike apomorphine. This suggests choreatic movements are linked to excessive dopamine system activity.

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    Area of Science:

    • Neuroscience
    • Pharmacology
    • Neurology

    Background:

    • Huntington chorea is characterized by involuntary movements.
    • Apomorphine hydrochloride, a dopamine agonist, has shown potential in alleviating these symptoms.
    • The role of other dopamine receptor agonists in Huntington chorea requires investigation.

    Purpose of the Study:

    • To investigate the effect of bromocriptine, another dopamine receptor agonist, on Huntington chorea.
    • To further understand the relationship between dopaminergic systems and choreatic movements.

    Main Methods:

    • A double-blind, crossover study design was employed.
    • Six patients diagnosed with Huntington chorea participated in the study.
    • Patients were administered bromocriptine to assess its impact on choreatic symptoms.

    Main Results:

    • Bromocriptine administration did not improve chorea in Huntington disease patients.
    • Instead, bromocriptine treatment led to an exacerbation of choreatic movements.
    • The study observed a worsening of involuntary movements following bromocriptine administration.

    Conclusions:

    • The findings suggest that bromocriptine is ineffective for treating Huntington chorea.
    • The exacerbation of chorea by bromocriptine supports the hypothesis of dopaminergic system overactivity in this condition.
    • Further research into dopaminergic modulation for Huntington chorea is warranted.

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