The current study aimed to define and validate the criteria for characterizing and cognitive deficits based on the psychometric approach using the Uniform data set Czech version (UDS-CZ 2.0) to reduce the rate of misdiagnosis. We computed the prevalence of low scores on the 14 subtests of UDS-CZ 2.0 in a normative sample of healthy older adults and validated criteria for possible and probable cognitive impairment on the sample of amnestic Mild Cognitive Impairment (MCI) patients. The misclassification rate of the validation sample using psychometrically derived criteria remained low: for classification as possible impairment, we found 66-76% correct classification in the clinical sample and only 2-8% false positives in the healthy control validation sample, similar results were obtained for probable cognitive impairment. Our findings offer a psychometric approach and a computational tool to minimize the misdiagnosis of mild cognitive impairment compared to traditional criteria for MCI.
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http://dx.doi.org/10.1080/13825585.2021.2022593 | DOI Listing |
Alzheimers Dement
December 2024
Centre for Healthy Brain Ageing, Department of Psychological Medicine, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK.
Introduction: Neuropsychiatric symptoms (NPSs) are common in dementia with Lewy bodies (DLB) but their neurobiological mechanisms are poorly understood.
Methods: NPSs and cognition were assessed annually in participants (DLB n = 222; Alzheimer's disease [AD] n = 125) from the European DLB (E-DLB) Consortium, and plasma phosphorylated tau-181 (p-tau181) and p-tau231 concentrations were measured at baseline.
Results: Hallucinations, delusions, and depression were more common in DLB than in AD and, in a subgroup with longitudinal follow-up, persistent hallucinations and NPSs were associated with lower p-tau181 and p-tau231 in DLB.
Alzheimers Dement
December 2024
Northwestern Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Chicago, Illinois, USA.
The Alzheimer's Association convened a Diagnostic Evaluation, Testing, Counseling and Disclosure Clinical Practice Guideline workgroup to help combat the major global health challenges surrounding the timely detection, accurate diagnosis, and appropriate disclosure of mild cognitive impairment (MCI) or dementia due to Alzheimer's disease (AD) or other diseases that cause these types of cognitive-behavioral disorders. The newly published clinical practice guidelines are proposed as a structured approach to evaluation. The purpose of the present article is to provide a clinical perspective on the use of neuropsychology within the new framework and practice guidelines outlined under the Diagnostic Evaluation, Testing, Counseling and Disclosure of Suspected Alzheimer's Disease and Related Disorders (DETeCD-ADRD) recommendations for primary care and specialty care.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Nuclear Medicine and Molecular Imaging, Imaging and Pathology, KU Leuven, Leuven, Belgium.
Introduction: The longitudinal progression of synaptic loss in Alzheimer's disease (AD) and how it is affected by tau pathology remains poorly understood.
Methods: Thirty patients with amnestic mild cognitive impairment (aMCI) and 26 healthy controls underwent cognitive evaluations and tau, synaptic vesicle protein 2A (SV2A), and amyloid positron emission tomography. Twenty-one aMCI underwent 2-year follow-up (FU) investigations.
Alzheimers Dement
December 2024
Banner Sun Health Research Institute and Banner Alzheimer's Institute, Banner Health, Sun City, Arizona, USA.
This special issue contains multiple articles related to the DETeCD-ADRD guideline.
View Article and Find Full Text PDFNeuro Endocrinol Lett
December 2024
Sichuan Provincial Center for Mental Health, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China.
Background: Severe or recurring major depression is associated with increased adverse childhood experiences (ACEs), heightened atherogenicity, and immune-linked neurotoxicity (INT). Nevertheless, the interconnections among these variables in outpatient major depression (OMDD) have yet to be determined. We aim to determine the correlations among INT, atherogenicity, and ACEs in OMDD patients compared to normal controls.
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