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A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
Mild cognitive impairment: a nosological entity?
Thierry Voisin1, Jacques Touchon, Bruno Vellas
1Department of Internal Medicine and Clinical Gerontology, Acute Unit for Alzheimer's Patients, Toulouse University, Toulouse, France. dintilhac.b@chu-toulouse.fr
Abstract:
Mild cognitive impairment is not an established diagnosis but a concept for which different criteria have been proposed and modified over time. Mild cognitive impairment refers to the transitional zone between normal ageing and dementia. The mild cognitive impairment stage may be one of the optimum stages at which to intervene with preventive therapies. The heterogeneity of the term has been recognized. Multiple sources of heterogeneity have been described for mild cognitive impairment, including biological factors, clinical symptoms and clinical course. It is still not possible to consider mild cognitive impairment as an explicit predictor of Alzheimer's disease with the current criteria. The heterogeneity within mild cognitive impairment has been noted, and a classification has been proposed: amnestic or single memory mild cognitive impairment, multiple domains mild cognitive impairment, and single non-memory mild cognitive impairment. Future research should be focussed on redefining the criteria of the mild cognitive impairment entity. This could enable the better development of appropriate therapeutic interventions.
Insights
Mild cognitive impairment (MCI) is a transitional stage between normal aging and dementia. Redefining MCI criteria is crucial for developing effective preventive therapies and understanding its link to Alzheimer's disease.
Area of Science:
- Neurology
- Gerontology
- Cognitive Science
Background:
- Mild cognitive impairment (MCI) represents a transitional phase between normal aging and dementia.
- Current MCI criteria are not standardized, leading to heterogeneity in diagnosis and understanding.
- MCI is considered a potential window for early intervention with preventive therapies.
Purpose of the Study:
- To review the concept and evolving criteria of mild cognitive impairment.
- To highlight the heterogeneity within MCI and its implications for diagnosis and treatment.
- To emphasize the need for redefining MCI criteria for improved therapeutic development.
Main Methods:
- Literature review of proposed and modified criteria for mild cognitive impairment.
- Analysis of sources of heterogeneity in MCI, including biological, symptomatic, and clinical course factors.
- Examination of proposed classifications for MCI subtypes.
Main Results:
- Mild cognitive impairment is not a definitive diagnosis but an evolving concept.
- Significant heterogeneity exists within MCI, complicating its role as an Alzheimer's disease predictor.
- Proposed MCI classifications include amnestic, multiple-domain, and single non-memory subtypes.
Conclusions:
- The heterogeneity of mild cognitive impairment necessitates a re-evaluation of diagnostic criteria.
- Refined MCI criteria are essential for advancing the development of targeted preventive therapies.
- Further research is needed to establish explicit diagnostic standards for MCI.
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