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In vitro evaluation of isatin-pyridine oxime hybrids as potential acetylcholinesterase inhibitors for nerve agent prophylaxis

Author(s): Silva MCJD; Pinto AMV; Balthar MA; Correa ABA; Bhattacharyya D; Simas ABC; Kuca K; Forgione P; França TCC; Cavalcante SFA; Kitagawa DAS;

Given the recent deployment of nerve agents as a method of warfare and in targeted assassinations, the development of robust, broad-spectrum medical countermeasures is essential. Our research group has synthesized isatin-pyridine oxime hybrids that have previously demonstrated the ability to resc ...

Article GUID: 40516590


Longitudinal relationships among cerebrospinal fluid biomarkers, cerebral blood flow, and grey matter volume in individuals with a familial history of Alzheimer s disease

Author(s): Sanami S; Intzandt B; Huck J; Villeneuve S; Iturria-Medina Y; Gauthier CJ; Prevent-Ad Research Group None;

Alzheimer's disease (AD) is a complex disease that involves complex interactions between protein biomarkers such as amyloid beta (Aß) and tau, neurodegeneration, cerebrovascular health and inflammation. However, how these factors interact, especially in the early phases of disease development ...

Article GUID: 40347524


Connected speech profiles in mild cognitive impairment reflect global cognition

Author(s): Pellerin S; Houzé B; Bedetti C; Phillips N; Brambati SM;

BackgroundMild cognitive impairment (MCI), a prodromal stage of Alzheimer's disease (AD) for many individuals, is accompanied by widespread connected speech (CS) changes (e.g., shorter CS samples, mention of fewer semantic content units, lower syntactic complexity). Nevertheless, findings on CS in MCI are heterogeneous. This heterogeneity, combined wi ...

Article GUID: 40232260


Use of lecanemab and donanemab in the Canadian healthcare system: Evidence, challenges, and areas for future research

Author(s): Smith EE; Phillips NA; Feldman HH; Borrie M; Ganesh A; Henri-Bhargava A; Desmarais P; Frank A; Badhwar A; Barlow L; Bartha R; Best S; Bethell J; Bhangu J; Black SE; Bocti C; Bronskill SE; Burhan AM; Calon F; Camicioli R; Campbell B; Coll ...

Lecanemab and donanemab are monoclonal antibody therapies that remove amyloid-beta from the brain. They are the first therapies that alter a fundamental mechanism, amyloid-beta deposition, in Alzheimer disease (AD). To inform Canadian decisions on approval and use of these drugs, the Canadian Con ...

Article GUID: 39893139


Sleep spindles and slow oscillations predict cognition and biomarkers of neurodegeneration in mild to moderate Alzheimer's disease

Author(s): Páez A; Gillman SO; Dogaheh SB; Carnes A; Dakterzada F; Barbé F; Dang-Vu TT; Ripoll GP;

Introduction: Changes in sleep physiology can predate cognitive symptoms by decades in persons with Alzheimer's disease (AD), but it remains unclear which sleep characteristics predict cognitive and neurodegenerative changes after AD onset. Methods: Using data from a prospective cohort of mild to moderate AD (n = 60), we analyzed non-rapid eye moveme ...

Article GUID: 39878233


Impact of a national dementia research consortium: The Canadian Consortium on Neurodegeneration in Aging (CCNA)

Author(s): Chertkow H; Phillips N; Rockwood K; Anderson N; Andrew MK; Bartha R; Beaudoin C; Bélanger N; Bellec P; Belleville S; Bergman H; Best S; Bethell J; Bherer L; Black S; Borrie M; Camicioli R; Carrier J; Cashman N; Chan S; Crowshoe L; Cuello ...

The Canadian Consortium on Neurodegeneration in Aging (CCNA) was created by the Canadian federal government through its health research funding agency, the Canadian Institutes for Health Research (CIHR), in 2014, as a response to the G7 initiative to fight dementia. Two five-year funding cycles ( ...

Article GUID: 39636028


Cognitive Speed in Neurodegenerative Disease: Comparing Mean Rate and Inconsistency Within and Across the Alzheimer's and Lewy Body Spectra in the COMPASS-ND Study

Author(s): Caballero HS; McFall GP; Gee M; MacDonald S; Phillips NA; Fogarty J; Montero-Odasso M; Camicioli R; Dixon RA;

Background: Alzheimer's disease (AD) and Lewy body disease (LBD) are characterized by early and gradual worsening perturbations in speeded cognitive responses. Objective: Using simple and choice reaction time tasks, we compared two indicators of cognitive speed within and across the AD and L ...

Article GUID: 38875040


The effectiveness of exercise interventions targeting sleep in older adults with cognitive impairment or Alzheimer's disease and related dementias (AD/ADRD): A systematic review and meta-analysis

Author(s): Arsenio Páez, Emmanuel Frimpong, Melodee Mograss, Thien Thanh Dang-Vu

Sleep loss is associated with reduced health and quality of life, and increased risk of Alzheimer's disease and related dementias. Up to 66% of persons with Alzheimer's disease and related dementias experience poor sleep, which can predict or accelerate the progression of cognitive decline. Exercise is a widely accessible intervention for poor ...

Article GUID: 38462491


Iron Deposition and Distribution Across the Hippocampus Is Associated with Pattern Separation and Pattern Completion in Older Adults at Risk for Alzheimer's Disease

Author(s): Zhou J; Wearn A; Huck J; Hughes C; Baracchini G; Tremblay-Mercier J; Poirier J; Villeneuve S; Tardif CL; Chakravarty MM; Daugherty AM; Gauthier CJ; Turner GR; Spreng RN;

Elevated iron deposition in the brain has been observed in older adult humans and persons with Alzheimer's disease (AD), and has been associated with lower cognitive performance. We investigated the impact of iron deposition, and its topographical distribution across hippocampal subfields and ...

Article GUID: 38388425


Bayesian workflow for the investigation of hierarchical classification models from tau-PET and structural MRI data across the Alzheimer's disease spectrum

Author(s): Belasso CJ; Cai Z; Bezgin G; Pascoal T; Stevenson J; Rahmouni N; Tissot C; Lussier F; Rosa-Neto P; Soucy JP; Rivaz H; Benali H;

Background: Alzheimer's disease (AD) diagnosis in its early stages remains difficult with current diagnostic approaches. Though tau neurofibrillary tangles (NFTs) generally follow the stereotypical pattern described by the Braak staging scheme, the network degeneration hypothesis (NDH) has su ...

Article GUID: 37920382


Alzheimer's early detection in post-acute COVID-19 syndrome: a systematic review and expert consensus on preclinical assessments

Author(s): Vandersteen C; Plonka A; Manera V; Sawchuk K; Lafontaine C; Galery K; Rouaud O; Bengaied N; Launay C; Guérin O; Robert P; Allali G; Beauchet O; Gros A;

Introduction: The risk of developing Alzheimer's disease (AD) in older adults increasingly is being discussed in the literature on Post-Acute COVID-19 Syndrome (PACS). Remote digital Assessments for Preclinical AD (RAPAs) are becoming more important in screening for early AD, and should alway ...

Article GUID: 37416323


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