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Therapeutic approaches in Parkinson's disease and related disorders.

ABSTRACT: The lack of effective therapies for neurodegenerative disorders is one of the most relevant challenges of this century, considering that, as the global population ages, the incidence of these type of diseases is quickly on the rise. Among these disorders, synucleinopathies, which are characterized by the abnormal accumulation and spreading of the synaptic protein alpha-synuclein in the brain, already constitute the second leading cause of parkinsonism and dementia in the elderly population. Disorders with alpha-synuclein accumulation include Parkinson's disease, dementia with Lewy bodies and multiple system atrophy. Numerous therapeutic alternatives for synucleinopathies are being tested in pre-clinical models and in the clinic; however, only palliative treatments addressing the dopaminergic deficits are approved to date, and no disease-modifying options are available yet. In this article, we provide a brief overview of therapeutic approaches currently being explored for synucleinopathies, and suggest possible explanations to the clinical trials outcomes. Finally, we propose that a deeper understanding of the pathophysiology of synucleinopathies, together with a combination of therapies tailored to each disease stage, may lead to better therapeutic outcomes in synucleinopathy patients. Synucleinopathies, neurodegenerative disorders characterized by the abnormal accumulation of the protein alpha-synuclein, constitute the second leading cause of parkinsonism and dementia in the elderly population, however, no disease-modifying options are available yet. In this review, we summarize the therapeutic approaches currently being explored for synucleinopathies, suggest possible explanations to the clinical outcomes, and propose areas of further therapeutic improvement. This article is part of a special issue on Parkinson disease.

SUBMITTER: Valera E

PROVIDER: S-EPMC4939141 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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Therapeutic approaches in Parkinson's disease and related disorders.

Valera Elvira E Masliah Eliezer E

Journal of neurochemistry 20160210

The lack of effective therapies for neurodegenerative disorders is one of the most relevant challenges of this century, considering that, as the global population ages, the incidence of these type of diseases is quickly on the rise. Among these disorders, synucleinopathies, which are characterized by the abnormal accumulation and spreading of the synaptic protein alpha-synuclein in the brain, already constitute the second leading cause of parkinsonism and dementia in the elderly population. Diso ...[more]

PMID: 26749150

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Project description:Movement disorders are neurological conditions in which patients manifest a diverse range of movement impairments. Distinct structures within the basal ganglia of the brain, an area involved in movement regulation, are differentially affected for every disease. Among the most studied movement disorder conditions are Parkinson's (PD) and Huntington's disease (HD), in which the deregulation of the movement circuitry due to the loss of specific neuronal populations in basal ganglia is the underlying cause of motor symptoms. These symptoms are due to the loss principally of dopaminergic neurons of the substantia nigra (SN) par compacta and the GABAergic neurons of the striatum in PD and HD, respectively. Although these diseases were described in the 19th century, no effective treatment can slow down, reverse, or stop disease progression. Available pharmacological therapies have been focused on preventing or alleviating motor symptoms to improve the quality of life of patients, but these drugs are not able to mitigate the progressive neurodegeneration. Currently, considerable therapeutic advances have been achieved seeking a more efficacious and durable therapeutic effect. Here, we will focus on the new advances of several therapeutic approaches for PD and HD, starting with the available pharmacological treatments to alleviate the motor symptoms in both diseases. Then, we describe therapeutic strategies that aim to restore specific neuronal populations or their activity. Among the discussed strategies, the use of Neurotrophic factors (NTFs) and genetic approaches to prevent the neuronal loss in these diseases will be described. We will highlight strategies that have been evaluated in both Parkinson's and Huntington's patients, and also the ones with strong preclinical evidence. These current therapeutic techniques represent the most promising tools for the safe treatment of both diseases, specifically those aimed to avoid neuronal loss during disease progression.

Dataset Information

Therapeutic approaches in Parkinson's disease and related disorders.

Publications

Therapeutic approaches in Parkinson's disease and related disorders.

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