Active clinical trials for "Parkinson Disease"

This pilot study will assess the feasibility of using heavy water as a safe 'tracer' for biomarker studies of diseases of the brain and spinal cord, that, together, are also called the central nervous system (CNS). Heavy water, also called deuterated water or D20, is the same as normal drinking water except the hydrogen atoms have been replaced by deuterium, a naturally occurring isotope of hydrogen. In particular, this study will use heavy water to define: 1) The rate of immune cell proliferation (growth) in the cerebrospinal fluid (CSF) compared to blood. This study will be examining a particular type of immune cell called T lymphocytes. 2) This study will also examine selected molecules generated by nerve cells of the CNS to understand their rate of secretion and turnover in healthy control participants, HIV-1-infected participants and participants with a non-HIV-related neurodegenerative disease such as Parkinson's disease (PD). This study will involve the administration of heavy water orally for either seven days, 12 days or six weeks. Measurements will be taken by lumbar puncture (LP, also known as a spinal tap). Blood (approximately five tablespoons per visit) will also be obtained at each of the lumbar puncture appointments. If this method can be used to establish the rates of immune cell turnover and the production rates of neuronal molecules using cerebrospinal fluid, it will provide unique data that is important to understand chronic neurodegenerative conditions, like PD, and to measure responses to targeted therapies. Hypothesis: D2O, administered orally, can be used to measure the proliferation rates of CSF T cells (and, eventually, of their major phenotypic subsets). D2O can be used to assess the turnover and production rates of CNS constituents that are normally or pathologically shed or secreted into the CSF, including (eventually): cargo molecules transported specifically in neurons in the CNS, such as chromogranin-A and -B, neuregulin-1 (specifically the extracellular secreted ectodomain of neuronal differentiation factor (NDF) isoform type α1, α2, β1, and the acetylcholine receptor inducing activity isoform (ARIA), secreted amyloid precursor protein (sAPP), alpha-synuclein; and APP metabolites amyloid beta (Aβ) 41 and 42.

Participants will complete a self-selected intensity of exercising over a 6 month period, with detailed clinical assessments at commencement and completion to determine the rate of progression of parkinsonism and gait abnormalities

The purpose of the Parkinson's disease Registry is to develop a national and international database of persons with Parkinson's disease (PD). The Registry will be used to facilitate the development of new therapies and healthcare services to improve the quality of life for people with PD. It will also be a means for investigators in the field of PD to quickly identify and notify subjects about other research studies for which they are eligible. Objectives include: Assess current treatment approaches and develop best-practice guidelines Track the functional abilities, access to healthcare and cost of illness of people with PD over time Drive the development of innovative research projects Accelerate the process of informing patients of research projects for which they may be eligible

The purpose of this study is to investigate genetic and environmental risk factors that increase susceptibility to the development of early-onset Parkinson's disease (developed at or before age 50).

Parkinson's disease (PD) is the most frequent neurodegenerative disease with a prevalence of 2% over 65 years and because of this high prevalence as the population ages, it is a major problem of public health. An exhaustive repertory of not only parkin mutations in autosomal recessive forms of PD but also in other known genes such as DJ-1, PINK1 and LRRK2, is of major importance for both genetic counseling in families affected with PD and physiopathological approaches to this disease. Through a French network for the study of Parkinson's disease genetics and extended collaborations with European, Mediterranean and other various countries, a total of 2934 subjects including 1683 patients and 1251 unaffected individuals has been collected since 2002. These samples consisted of 122 families with autosomal recessive PD, 285 cases of isolated early onset PD, 110 autosomal recessive and 129 autosomal dominant families with late onset PD, 201 isolated late onset PD cases and 250 matched controls. DNAs from all subjects are now available, lymphocytes and lymphoblastoid cell lines have been stored for most patients from France and recently, fresh fibroblasts have been obtained for some individuals. The genetic approach to autosomal recessive PD is focused on the identification of mutations in the parkin gene but also on the screening of DJ-1, PINK1 and LRRK2 genes.

-[18F]Fluoro-L-3,4-dihydroxyphenylalanine (18F-FDOPA) positron emission tomography (PET) is a imaging marker for presynaptic dopaminergic neuronal function. The decreased uptake of 18F-FDOPA in the posterior putamen is demonstrated in the early course of PD, and could differentiate early PD from healthy controls. The objective of this study is to investigate the evidence of presynaptic dopaminergic neuronal dysfunction in the preclinical stage of PD, which may be associated with HCV infection.

The purpose of this research study is to examine the relationship between personal characteristics and satisfaction with care in those diagnosed with Parkinson's disease during the COVID-19 pandemic. Participants will take 4 different surveys regarding their satisfaction with care throughout the duration of the COVID-19 pandemic. The surveys in total should not take more than 30 minutes to complete

The aim of study is to assess validity and reliability of Figure-of-Eight Walk Test in people with Parkinson's Disease

Non motor symptoms and signs in Parkinson's disease (PD) also include a series of visual deficits; deepening these aspects could be useful for a better management of symptoms, to standardize a specific protocol for the issues related to vision and also to understand how these aspects are important for the understanding of the mechanisms underlying the PD.

The aim of this study is to present the Turkish version of miniBESTest which evaluates the reasons of balance deficit and postural control. Accordingly, a practice of validity and reliability on adult patients with sensoriomotor impairments will be performed by utilizing the Turkish version of miniBESTest in this study.