Condition: Alzheimer Disease · Mild Cognitive Impairment · Subjective Cognitive Decline · Sponsor: Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
Alzheimer's disease (AD) is the leading cause of dementia and its prevalence is estimated to exceed 100 million affects by 2050, becoming the main public health problem worldwide. AD is considered a clinicopathological entity characterized by a progressive cognitive impairment with affectation of memory and other cognitive domains, which underlies a neuropathological pattern with extracellular accumulation of β-amyloid protein (Aβ) in the form of neuritic plaques, intracellular deposits of tau protein in the form of neuritic strands and neurofibrillary tangles, neuronal and synaptic loss and glial proliferation. Classically, its definitive diagnosis implied the existence of a clinical phenotype compatible with dementia, together with the neuropathological findings characteristic of the disease. More recently, evidence of clinical and biological changes leading to the dementia phase has led to the development of new diagnostic criteria that divide the course of AD into 3 stages: (1) a pre-clinical phase, which would include persons with positive biomarkers with normal cognitive performance for their age and educational level; (2) a phase of mild cognitive impairment (MCI), characterized by cognitive performance lower than expected by age and educational level; and (3) a dementia phase, once cognitive deficits interfere with the activities of daily living. Recent research has also shed light into the subdivision of each of the above-mentioned stages in distinct phases. For exa…
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| Barcelonabeta Brain Research Center | Barcelona, Catalonia, Spain | Recruiting |
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