Functional Connectivity Parkinson Disease
Functional Connectivity of the Motor Network in Two Major Subtypes of Parkinson Disease
In this study the investigators are looking at two subtypes of Parkinson Disease (PD); "tremor-dominant" (TD) and postural imbalance and gait disorder (PIGD). This study will use magnet resonance imaging (MRI) to see how the brain reacts while resting and doing a finger-tapping task while on and off PD medication. This study will look at the differences between the two sub-types of PD and healthy volunteers.
The investigators will test the hypothesis that connectivity at rest within the motor cortex and between the motor cortex and motor-associated regions such as the supplementary motor area and the pre motor cortex will not be as strong in PIGD compared to TD (increased activity and functional connectivity in TD group)
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Tipo di studio
Tipo di studio
Iscrizione (Effettivo)
Iscrizione
Contatti e Sedi
Luoghi di studio
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Colorado
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Aurora, Colorado, Stati Uniti, 80045
- University of Colorado Denver
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- English as their primary language
- Patients with Parkinson disease and healthy controls will be enrolled
- Parkinson patients must be on a dopaminergic medication (levodopa or dopamine agonist) and on a stable dose over the prior month
Exclusion Criteria:
- If unable to provide informed consent
- Pregnancy
- Excess of 300lbs
- Claustrophobia
- Metal in body
- Untreated neurological or psychiatric condition, who are delusional or have hallucinations, with cognitive impairment (MOCA<26), with a history of head injury sufficient to cause a concussion, or with significant systemic medical diseases (e.g. heart failure, liver failure, kidney failure, poorly controlled diabetes, etc.)
- Healthy control subjects will be excluded if taking any type of dopaminergic or anti-dopaminergic medication
- Subjects who are unable to demonstrate understanding of the study procedures and risks will be excluded
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Modelli osservazionali: Caso di controllo
- Prospettive temporali: Prospettiva
Numero di gruppi/coorti
Coorti e interventi
Gruppo / CoorteGruppo / Coorte |
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Tremor Dominant PD
Volunteers with predominantly tremor-related motor symptoms of PD
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Postural Instability & Gait Difficulty PD
Volunteers with primarily walking & balance-related motor symptoms of PD.
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Healthy Controls
Healthy volunteers consisting of people of same age as PD volunteers, w/o a diagnosis of PD.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Correlation coefficients between nodes of the motor network at rest and during a tapping motor task.
Lasso di tempo: At time of MRI scan: 12 or more hours after their last dose of dopaminergic medication.
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A measure of the correlation coefficients between nodes of the motor network at rest and during a tapping motor task between the "OFF" and "ON" dopaminergic medication states in the two motor subtype PD patients.
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At time of MRI scan: 12 or more hours after their last dose of dopaminergic medication.
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Correlation coefficients between nodes of the motor network at rest and during a tapping motor task.
Lasso di tempo: At time of 2nd MRI scan: 1 to 3 hours after taking their usual dose(s) dopaminergic medication(s).
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A measure of the correlation coefficients between nodes of the motor network at rest and during a tapping motor task between the "OFF" and "ON" dopaminergic medication states in the two motor subtype PD patients.
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At time of 2nd MRI scan: 1 to 3 hours after taking their usual dose(s) dopaminergic medication(s).
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Second level contrast between Parkinson Disease (PD) and Healthy Controls (HC).
Lasso di tempo: At time of MRI scan: 12 or more hours after their last dose of dopaminergic medication.
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Differences in connectivity as measured by correlation coefficients between nodes of the motor network at rest and during a tapping motor task in PD patients of two motor subtypes and matched healthy controls.
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At time of MRI scan: 12 or more hours after their last dose of dopaminergic medication.
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Task-related whole-brain activations.
Lasso di tempo: At time of MRI scan, 12 or more hours after their last dose of dopaminergic medication.
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Secondary outcome measures include task-related whole-brain activations as assessed by changes in blood oxygen-dependent (BOLD) contrast during functional magnetic resonance imaging (fMRI) scanning.
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At time of MRI scan, 12 or more hours after their last dose of dopaminergic medication.
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Task-related whole-brain activations.
Lasso di tempo: At time of 2nd MRI scan, 1 to 3 hours after taking their usual dose(s) dopaminergic medication(s).
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Secondary outcome measures include task-related whole-brain activations as assessed by changes in blood oxygen-dependent (BOLD) contrast during functional magnetic resonance imaging (fMRI) scanning.
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At time of 2nd MRI scan, 1 to 3 hours after taking their usual dose(s) dopaminergic medication(s).
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Connectivity between other motor and non-motor brain regions during the tasks.
Lasso di tempo: At time of MRI scan,12 or more hours after their last dose of dopaminergic medication.
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Secondary outcome measures include measuring the connectivity between other motor and non-motor brain regions during the tasks.
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At time of MRI scan,12 or more hours after their last dose of dopaminergic medication.
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Correlations of brain activity and functional connectivity to structural connectivity measures and behavioral and clinical assessments
Lasso di tempo: At time of MRI scan. 12 or more hours after their last dose of dopaminergic medication.
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Secondary outcome measures include a measure of the correlations of brain activity and functional connectivity to structural connectivity measures as well as behavioral and clinical assessments.
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At time of MRI scan. 12 or more hours after their last dose of dopaminergic medication.
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Correlations of brain activity and functional connectivity to structural connectivity measures and behavioral and clinical assessments
Lasso di tempo: At time of 2nd MRI scan. 1 to 3 hours after taking their usual dose(s) dopaminergic medication(s).
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Secondary outcome measures include a measure of the correlations of brain activity and functional connectivity to structural connectivity measures as well as behavioral and clinical assessments.
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At time of 2nd MRI scan. 1 to 3 hours after taking their usual dose(s) dopaminergic medication(s).
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Collaboratori e investigatori
Sponsor
Sponsor
Investigatori
Investigatori
- Investigatore principale: Brian Berman, MD, MS, University of Colorado, Denver
Studiare le date dei record
Studia le date principali
Inizio studio
Inizio studio
Completamento primario (Effettivo)
Completamento primario
Completamento dello studio (Effettivo)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- 10-1311
Piano per i dati dei singoli partecipanti (IPD)
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