View clinical trials related to Parkinson Disease.
Filter by:Prospective observational study to compare sensitivity of 3T functional Magnetic Resonance Imaging (3T fMRI) at diagnosing Parkinson's Disease (PD) against the benchmark DaTScan diagnostic test and clinical diagnosis at follow up.
Evaluation of the effectiveness of three different approaches for the rehabilitation of gait in patients with PD within a multidisciplinary, intensive rehabilitation treatment (MIRT).
The study is designed to characterize the clinical, neuropsychological, polysomnographic, and neuroimaging findings among subjects with Alzheimer's disease, Lewy Body dementia, and Parkinsons' Disease.
Cholinergic deficiency in the brain can be related to gait and balance problems in Parkinson disease (PD). Recent clinical trials suggested a beneficial role of acetylcholinesterase inhibitors (AchEI) on gait in PD. In this study, the investigators are planning to study the influence of AchEI on a brain network for gait and balance in PD. As gait problem is prominent in postural instability and gait disturbance (PIGD) subtype, this study will focus on the patients with PIGD phenotype.
The purpose of this study is to investigate whether speed-dependent measures of gait can be identified in patients with neurological conditions that affect gait, particularly in subjects with parkinsonian disorders.
The overall goals of this proposed study are to investigate the behavioral and neurophysiological mechanisms of patients with Parkinson's disease (PD) experiencing freezing of gait (FoG). More specifically, we aim to determine the behavioral changes in context-dependency and changes in corticomotor excitability associated with FoG.
The implantation of a deep brain stimulator (DBS) is an established option to improve the symptoms of Parkinson's disease (PD) in patients that do not respond adequately to medical therapy. Most centers perform this surgery using a technique that involves microelectrode recording (MER) of neuronal activity for localization of the target nucleus, microstimulation of identified targets, and neurological intraoperative testing in a cooperative patient. Dexmedetomidine, a α2-adrenergic receptors agonist, is a potent anxiolytic that acts at subcortical areas of the brain without involving GABA receptors. It provides excellent sedation without respiratory depression; also, it has an analgesic component and a predictable hemodynamic response. Low maintenance doses do not appear to interfere with MER. The possible effect of dexmedetomidine in the PD symptoms is still unclear.
The aim of this study is to compare personality and social cognition changes, including emotion detection and self-awareness, and neuroanatomical correlates in patients, and how that affects the caregiver-patient relationship.
Investigation of possible benefits of transcranial direct current stimulation (tDCS) as a treatment of depression in patients with Parkinson's Disease, through a randomized placebo-controlled clinical trial.
Although PD is considered predominantly as a motor disease caused by loss of dopaminergic neurons, multiple studies indicate that cholinergic dysfunction already starts in early PD and is crucial for the development of dementia in addition to motor symptoms.Because of its crucial role in CNS functioning and neurodegenerative disorders, including PD, it is of great importance to get a better understanding of the cholinergic functioning in the brain. Pathways of acetylcholine synthesis, transport and release provide possible targets for in vivo imaging of the cholinergic system. However,previous approaches are considered as indirect biomarkers of cholinergic terminal integrity because they measure both pre- and post-synaptic expressions. The novel vesicular acetylcholine transporter (VAChT) tracer [18F]Fluoroethoxy-Benzovesamicol ([18F]FEOBV) provides a more direct measurement of presynaptic cholinergic function. The use of [18F]FEOBV as a Positron Emission Tomography (PET) imaging marker of cholinergic innervations has, however, only been studied in healthy human volunteers and no data is available on patients. With this study the differences in cholinergic function between PD patients and healthy aged-matched volunteers will be quantified. In addition the test-retest variability will be determined