Principal Investigators




    Contact information of lead PI



    Title of project or programme

    Synaptic Transmissions in the Basal Ganglia

    Source of funding information


    Total sum awarded (Euro)

    € 903,096.33

    Start date of award


    Total duration of award in years


    The project/programme is most relevant to:

    Parkinson's disease & PD-related disorders


    Basal Ganglia, Synaptic Transmission, Electrocorticogram, Parkinson Disease, optogenetics

    Research Abstract

    DESCRIPTION (provided by applicant): Parkinson’s disease (PD) is the second most common devastating neurodegenerative disorder affecting up to 25% of individuals over 65 years of age. Data from patients and animal models of PD have shown that the development of parkinsonisms is associated with the emergence of abnormally strong and widely synchronized oscillatory activity (OS) of the basal ganglia that developed after degeneration of midbrain dopamine containing neurons. Based on recent studies, we hypothesize that abnormal OS in the dopamine-depleted basal ganglia of PD patients is critically dependent on the development of abnormal OS in a nucleus called the external segment of the globus pallidus (GPe), which has strong neuronal connections with most of other nuclei in the basal ganglia. The main goal of this project is to reveal alterations of the functional and anatomical connectivity of GPe that underlie the generation of abnormal OS. Specifically, the aims of this grant are to reveal how dopamine depletion alters 1) the firing behavior of GPe neurons, 2) the conductivity of abnormal OS in the cortico-striato- GPe pathway, and 3) the properties of subthalamo-GPe loop that amplifies abnormal OS, all of which will provide information for designing experimental therapeutic strategies to reduce behavioral deficits in PD subjects. The results of the proposed studies will advance our understanding of the functional organization of the basal ganglia in pathological conditions and provide clear directions for future investigations including the formulation of treatment strategies of human parkinsonisms.

    Lay Summary

    PUBLIC HEALTH RELEVANCE: The proposed research is relevant to public health because a large number of people, up to 25% of aging population over 65 years of age, suffer from parkinsonisms. Growing evidence suggests that abnormal signal transfer associated with abnormal neuronal activity underlies the development of parkinsonisms. We believe that new understandings of how the abnormal activity develops, along with newly developed methodologies to suppress identified abnormal activity in the basal ganglia, will provide a valuable foundation for the development of treatment strategies for parkinsonisms.

    Further information available at:

Types: Investments > €500k
Member States: United States of America
Diseases: Parkinson's disease & PD-related disorders
Years: 2016
Database Categories: N/A
Database Tags: N/A

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