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Cognitive dysfunction is an important focus of research in Parkinson's disease (PD) and Alzheimer's disease (AD). While the concept of amnestic mild cognitive impairment (MCI) as a prodrome to AD has been recognized for many years, the construct of MCI in PD is a relative newcomer with recent development of diagnostic criteria, biomarker research programs and treatment trials. Controversies and challenges, however, regarding PD-MCI's definition, application, heterogeneity and different trajectories have arisen. This review will highlight current research advances and challenges in PD-MCI. Furthermore, lessons from the AD field, which has witnessed an evolution in MCI/AD definitions, relevant advances in biomarker research and development of disease-modifying and targeted therapeutic trials will be discussed.


Jennifer G Goldman, Neelum T Aggarwal, Cynthia D Schroeder. Mild cognitive impairment: an update in Parkinson's disease and lessons learned from Alzheimer's disease. Neurodegenerative disease management. 2015 Oct;5(5):425-43

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PMID: 26517759

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