Tag: Alzheimer

Neurology

Efficacy and Safety of #Lanabecestat for Treatment of Early and Mild #Alzheimer Disease

Does lanabecestat, a potent inhibitor of the beta-site amyloid precursor protein–cleaving enzyme 1 (BACE1), slow the progression of early Alzheimer disease (AD) and mild AD dementia?.. ..Among 1722 DAYBREAK-ALZ patients, the mean (SD) age was 72.3 (7.0) years, and 1023 of 1722 (59.4%) were women. Both studies were terminated early after futility analysis. There were no consistent, reproducible dose-related findings on primary or secondary efficacy … Continue reading Efficacy and Safety of #Lanabecestat for Treatment of Early and Mild #Alzheimer Disease

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Neurology

NP03, a Microdose #Lithium Formulation, Blunts Early #Amyloid Post-Plaque Neuropathology in McGill-R-Thy1-APP Alzheimer-Like Transgenic Rats

Epidemiological, preclinical, and clinical studies have suggested a role for microdose lithium in reducing Alzheimer’s disease (AD) risk by modulating key mechanisms associated with AD pathology. The novel microdose lithium formulation, NP03, has disease-modifying effects in the McGill-R-Thy1-APP transgenic rat model of AD-like amyloidosis at pre-plaque stages, before frank amyloid-β (Aβ) plaque deposition, during which Aβ is primarily intraneuronal.. During the early Aβ post-plaque stage, … Continue reading NP03, a Microdose #Lithium Formulation, Blunts Early #Amyloid Post-Plaque Neuropathology in McGill-R-Thy1-APP Alzheimer-Like Transgenic Rats

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Neurology

The Risk of Head #Injuries Associated With Antipsychotic Use Among Persons With #Alzheimer’s disease

Antipsychotic use is associated with risk of falls among older persons, but we are not aware of previous studies investigating risk of head injuries. We studied the association of antipsychotic use and risk of head injuries among community dwellers with Alzheimer’s disease (AD) ..Antipsychotic use was associated with an increased risk of head injuries (event rate per 100 person‐years = 1.65 [95% confidence interval {CI} … Continue reading The Risk of Head #Injuries Associated With Antipsychotic Use Among Persons With #Alzheimer’s disease

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Diet, Neurology

Extra virgin #olive oil improves synaptic activity, short‐term plasticity, #memory, and neuropathology in a tauopathy model

In recent years, increasing evidence has accumulated supporting the health benefits of extra virgin olive oil (EVOO). Previous studies showed that EVOO supplementation improves Alzheimer’s disease (AD)‐like amyloidotic phenotype of transgenic mice.. ..At the end of the treatment, compared with control mice receiving EVOO displayed improved memory and cognition which was associated with increased basal synaptic activity and short‐term plasticity. This effect was accompanied by … Continue reading Extra virgin #olive oil improves synaptic activity, short‐term plasticity, #memory, and neuropathology in a tauopathy model

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Environment, Neurology

#Particulate matter and episodic #memory decline mediated by early neuroanatomic biomarkers of Alzheimer’s disease

Evidence suggests exposure to particulate matter with aerodynamic diameter <2.5 μm (PM2.5) may increase the risk for Alzheimer’s disease and related dementias.. ..Long-term PM2.5 exposure was associated with increased Alzheimer’s disease pattern similarity scores, which accounted for 22.6% (95% CI: 1% to 68.9%) and 10.7% (95% CI: 1.0% to 30.3%) of the total adverse PM2.5 effects on Trials 1–3 and List B, respectively. The observed … Continue reading #Particulate matter and episodic #memory decline mediated by early neuroanatomic biomarkers of Alzheimer’s disease

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Neurology

In Vivo Assessment of #Retinal Biomarkers by Hyperspectral Imaging: Early Detection of #Alzheimer’s Disease

..The retina is a developmental extension of the brain and has been viewed as a window to evaluate AD-related pathology. ..Described herein is the utilization of our retinal hyperspectral imaging (rHSI) technique as a biomarker for identification of AD-related early pathological changes in the retina The underlying principle is Rayleigh light scattering, which is expected from low-order Aβ aggregates present in early pathology ..The largest … Continue reading In Vivo Assessment of #Retinal Biomarkers by Hyperspectral Imaging: Early Detection of #Alzheimer’s Disease

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Cardiology, Neurology

#Antihypertensive medications and risk for incident #dementia and #Alzheimer’s disease: a meta-analysis of individual participant data from prospective cohort studies

..We assessed the association of incident dementia and clinical Alzheimer’s disease with use of five AHM classes, within strata of baseline high (systolic blood pressure [SBP] ≥140 mm Hg or diastolic blood pressure [DBP] ≥90 mm Hg) and normal (SBP <140 mm Hg and DBP <90 mm Hg) blood pressure. ..There were 3728 incident cases of dementia and 1741 incident Alzheimer’s disease diagnoses. In the … Continue reading #Antihypertensive medications and risk for incident #dementia and #Alzheimer’s disease: a meta-analysis of individual participant data from prospective cohort studies

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Neurology

Intact global #cognitive and #olfactory ability predicts lack of transition to #dementia

Odor identification deficits characterize Alzheimer’s disease and other dementias ..Smell Identification Test, which includes the 12-item Brief Smell Identification Test (B-SIT) ..In covariate-adjusted survival analyses, impairment on the Blessed Orientation Memory Concentration Test and B-SIT each predicted dementia (n = 109), primarily Alzheimer’s disease (n = 101). Among participants with intact olfactory (B-SIT ≥ 11/12 correct) and cognitive (Blessed Orientation Memory Concentration Test ≤ 5/28 … Continue reading Intact global #cognitive and #olfactory ability predicts lack of transition to #dementia

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Diet, Neurology

Dietary #salt promotes cognitive impairment through tau phosphorylation

Dietary habits and vascular risk factors promote both #Alzheimer’s disease and cognitive impairment caused by vascular factors. Furthermore, accumulation of hyperphosphorylated tau, a microtubule-associated protein and a hallmark of Alzheimer’s pathology, is also linked to vascular cognitive impairment. In mice, a salt-rich diet leads to cognitive dysfunction associated with a nitric oxide deficit in cerebral endothelial cells and cerebral hypoperfusion Here we report that dietary … Continue reading Dietary #salt promotes cognitive impairment through tau phosphorylation

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Neurology

Nonpharmacological Interventions to Manage #Dementia Symptoms in Community-Dwelling Older Adults: A Cluster Randomized Controlled Trial

..exploring the effects of chair yoga (CY), compared to music intervention (MI) and chair-based exercise (CBE) in this population. Using a cluster randomized controlled trial (RCT), 3 community sites were randomly assigned 1:1:1 to CY, MI, or CBE. Participants attended twice-weekly 45-minute sessions for 12 weeks.. The CY group improved significantly in quality of life compared to the MI group .. However, no significant group … Continue reading Nonpharmacological Interventions to Manage #Dementia Symptoms in Community-Dwelling Older Adults: A Cluster Randomized Controlled Trial

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Cardiology, Neurology

Long-Term #Dabigatran Treatment Delays #Alzheimer’s Disease Pathogenesis in the TgCRND8 Mouse Model

Results Anticoagulation with dabigatran prevented memory decline, cerebral hypoperfusion, and toxic fibrin deposition in the AD mouse brain. In addition, long-term dabigatran treatment significantly reduced the extent of amyloid plaques, oligomers, phagocytic microglia, and infiltrated T cells by 23.7%, 51.8%, 31.3%, and 32.2%, respectively. Dabigatran anticoagulation also prevented AD-related astrogliosis and pericyte alterations, and maintained expression of the water channel aquaporin-4 at astrocytic perivascular endfeet … Continue reading Long-Term #Dabigatran Treatment Delays #Alzheimer’s Disease Pathogenesis in the TgCRND8 Mouse Model

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Neurology

Risk of #rhabdomyolysis with #donepezil compared with rivastigmine or galantamine: a population-based cohort study

Donepezil, rivastigmine and galantamine are popular cholinesterase inhibitors used to manage the symptoms of #Alzheimer disease and other dementias; regulatory agencies in several countries warn about a possible risk of rhabdomyolysis.. ..The average age in our 2 groups was 81.1 years, and 61.4% of our population was female. Donepezil was associated with a higher risk of hospital admission with rhabdomyolysis compared with rivastigmine or galantamine … Continue reading Risk of #rhabdomyolysis with #donepezil compared with rivastigmine or galantamine: a population-based cohort study

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