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From periodontitis to neurodegeneration: Can probiotics modulate the em P. gingivalis /em -amyloid pathway in Alzheimer s disease?

Author(s): Sharif-Askari Z; Atoui K; El Zein W; Rizk M; Sharif Askari E;

Alzheimer's disease (AD) is a neurodegenerative disorder characterized by the gradual destruction of cognitive and behavioral functions. Despite the continuous research efforts, there is still no cure for this disease. In recent years, researchers have investigated Porphyromonas gingivalis (P. gingivalis) as a potential cause of AD. P. gingivalis-lipo ...

Article GUID: 41940869


Probing cognitive reserve with resting state functional connectivity in subcortical ischemic vascular cognitive impairment

Author(s): Gu Y; Hsu CL; Boa Sorte Silva NC; Tam RC; Alkeridy WA; Lam K; Liu-Ambrose T;

Background: Subcortical ischemic vascular cognitive impairment (SIVCI) is characterized by white matter hyperintensities (WMH) that contribute to executive dysfunction and increased risk of Alzheimer's disease. Cognitive reserve (CR) is the brain's ability to maintain cognitive performance despite pathology. Resting-state functional connectivity ( ...

Article GUID: 41929984


Peripheral inflammation in a Canadian cohort of neurodegenerative conditions: Occurrence, determinants, and impact

Author(s): Seixas-Lima B; Rosa-Neto P; Phillips NA; Borrie M; Roncero CT; Lahiri D; Dori D; Eintracht S; Chertkow H;

Background"Inflammaging" describes chronic low-grade inflammation observed in aging individuals. It may play a major role in neurodegeneration.ObjectiveTo assess blood inflammatory markers in older adults. We hypothesized that elevated inflammation would be found in some cognitively nor ...

Article GUID: 41358624


The predictive role of olfactory identification on episodic memory and mild cognitive impairment: Results from the CIMA-Q cohort

Author(s): Jobin B; Phillips NA; Frasnelli J; Boller B;

BackgroundOlfactory identification decline is a known early marker of Alzheimer's disease and is already present at the mild cognitive impairment (MCI) stage. While being linked with episodic memory, its predictive value for cognitive performance and distinguishing between clinical stages remains unclear.ObjectiveThis study examined (1) the predictive ...

Article GUID: 40944318


The longitudinal effects of global and regional brain measurements on cognitive abilities

Author(s): Hosseininasabnajar F; Kakinami L;

Loss of brain tissues and cognitive abilities are natural processes of aging, but longitudinal studies are limited. We explored the longitudinal association between global and regional brain measures with cognitive abilities among individuals with normal cognitive status, mild cognitive impairment, and Alzheimer's Disease, including those with stable ...

Article GUID: 40739300


Characterizing spatiotemporal white matter hyperintensity pathophysiology in vivo to disentangle vascular and neurodegenerative contributions

Author(s): Parent O; Alasmar Z; Osborne S; Bussy A; Costantino M; Fouquet JP; Quesada D; Pastor-Bernier A; Fajardo-Valdez A; Pichet-Binette A; McQuarrie A; Maranzano J; Devenyi GA; Steele CJ; Villeneuve S; ; Dadar M; Chakravarty MM;

White matter hyperintensities (WMHs) are neuroimaging markers widely interpreted as caused by cerebral small vessel disease, yet emerging evidence suggests that a subset may have a neurodegenerative etiology. Current imaging methods have lacked the specificity to disentangle biological processes ...

Article GUID: 40585093


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


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