Mild cognitive impairment in Parkinson's disease
1Sackler School of Medicine, Tel-Aviv University, Ramat-Aviv, 69978, Tel-Aviv, Israel. amoskor@post.tau.ac.il
Journal of Neural Transmission (Vienna, Austria : 1996)
|March 20, 2013
Summary
Parkinson's disease (PD) is a complex neurological disorder with evolving definitions. Research highlights its clinical, pathological, and genetic facets, including cognitive changes and pre-motor symptoms, impacting disease study and treatment.
Area of Science:
- Neurology
- Neuroscience
- Pathology
Background:
- Parkinson's disease (PD) definition has evolved from a clinical syndrome to include pathological hallmarks like Lewy bodies and genetic factors.
- Pre-motor symptoms such as depression, anosmia, and sleep disturbances are increasingly recognized as crucial aspects of PD.
- Cognitive impairment in PD ranges from normal cognition to dementia, with mild cognitive impairment in PD (MCI in PD) being a poorly defined area.
Purpose of the Study:
- To explore the multifaceted nature of Parkinson's disease definitions.
- To discuss the implications of varying PD definitions on etiological research and therapeutic strategies.
- To examine the spectrum of cognitive impairment in PD and the current status of MCI in PD.
Main Methods:
- Review of historical and current literature on Parkinson's disease definitions.
- Analysis of clinical, pathological, and genetic criteria used in PD diagnosis.
- Discussion of pre-motor and cognitive manifestations in PD.
Main Results:
- Parkinson's disease is characterized by clinical, pathological (Lewy bodies, synuclein, neuronal loss), and genetic complexities.
- Pre-motor symptoms and cognitive deficits, including mild cognitive impairment in PD, are significant features impacting disease understanding.
- The diverse definitions of PD present challenges for etiological research and therapeutic development.
Conclusions:
- The evolving and complex definitions of Parkinson's disease necessitate a comprehensive approach considering clinical, pathological, genetic, and symptomatic aspects.
- Further research is required to clarify the clinical utility and heuristic value of mild cognitive impairment in PD.
- A unified understanding of PD is crucial for advancing research into its causes and effective treatments.
Related Concept Videos
01:24Parkinson's Disease: Treatment
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of its...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of its...
01:15Parkinson's Disease: Overview
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is to...
01:24Parkinson Disease ll: Pathophysiology
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
01:24Parkinson Disease l: Introduction
Parkinson’s disease is a chronic, progressive neurodegenerative disorder that primarily affects movement. It is characterized by motor symptoms such as resting tremors, muscle rigidity, bradykinesia (slowness of movement), and postural instability. Patients may notice hand tremors at rest, stiffness during movement, or a shuffling gait. In addition to motor features, non-motor symptoms include sleep disturbances, mood and behavioral changes, constipation, and cognitive impairment, all of which...
01:22Dementia l: Introduction
Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
01:29Alzheimer Disease l: Introduction
Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...