Tag: Alzheimer

Neurology

#Sleep Disturbance Forecasts β- #Amyloid Accumulation across Subsequent Years

Experimental sleep-wake disruption in rodents and humans causally modulates β-amyloid (Aβ) dynamics (e.g., [1, 2, 3]). This leads to the hypothesis that, beyond cross-sectional associations, impaired sleep structure and physiology could represent prospective biomarkers of the speed with which Aβ accumulates over time. Here, we test the hypothesis that initial baseline measures of non-rapid eye movement (NREM) sleep slow-wave activity (SWA) and sleep quality (efficiency) … Continue reading #Sleep Disturbance Forecasts β- #Amyloid Accumulation across Subsequent Years

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Neurology

CMS121, a fatty acid synthase inhibitor, protects against excess lipid peroxidation and inflammation and alleviates cognitive loss in a transgenic mouse model of #Alzheimer’s disease

The oxidative degradation of lipids has been shown to be implicated in the progression of several neurodegenerative diseases and modulating lipid peroxidation may be efficacious for treating Alzheimer’s disease (AD). This hypothesis is strengthened by recent findings suggesting that oxytosis/ferroptosis, a cell death process characterized by increased lipid peroxidation, plays an important role in AD-related toxicities. CMS121 is a small molecule developed against these aspects … Continue reading CMS121, a fatty acid synthase inhibitor, protects against excess lipid peroxidation and inflammation and alleviates cognitive loss in a transgenic mouse model of #Alzheimer’s disease

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Neurology

Circulating asymmetric #dimethylarginine and #cognitive decline: A 4‐year follow‐up study of the 1936 Aberdeen Birth Cohort

The underlying mechanisms leading to dementia and Alzheimer’s disease (AD) are unclear. Asymmetric dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide synthase, may be associated with cognitive decline, but population‐based evidence is lacking.. ..Change in cognitive performance was assessed in participants of the Aberdeen Birth Cohort of 1936 using longitudinal Raven’s progressive matrices (RPM) between 2000 and 2004. Multiple linear regression was used to estimate … Continue reading Circulating asymmetric #dimethylarginine and #cognitive decline: A 4‐year follow‐up study of the 1936 Aberdeen Birth Cohort

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Neurology, Pneumology

Circular Dichroism Spectroscopy Identifies the β-Adrenoceptor Agonist Salbutamol As a Direct Inhibitor of Tau Filament Formation in Vitro

Potential drug treatments for Alzheimer’s disease (AD) may be found by identifying compounds that block the assembly of the microtubule-associated protein tau into neurofibrillar tangles associated with neuron destabilization and cell death. Here, a small library of structurally diverse compounds was screened in vitro for the ability to inhibit tau aggregation, using high-throughput synchrotron radiation circular dichroism as a novel tool to monitor the structural … Continue reading Circular Dichroism Spectroscopy Identifies the β-Adrenoceptor Agonist Salbutamol As a Direct Inhibitor of Tau Filament Formation in Vitro

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Diet, Neurology, Sports

Healthy #lifestyle and the risk of #Alzheimer dementia

Using data from the Chicago Health and Aging Project (CHAP; n = 1,845) and the Rush Memory and Aging Project (MAP; n = 920), we defined a healthy lifestyle score on the basis of nonsmoking, ≥150 min/wk moderate/vigorous-intensity physical activity, light to moderate alcohol consumption, high-quality Mediterranean-DASH Diet.. ..During a median follow-up of 5.8 years in CHAP and 6.0 years in MAP, 379 and 229 … Continue reading Healthy #lifestyle and the risk of #Alzheimer dementia

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Neurology, Psychiatry

Repetitive negative #thinking is associated with #amyloid, tau, and cognitive decline

The Cognitive Debt hypothesis proposes that repetitive negative thinking (RNT), a modifiable process common to many psychological risk factors for Alzheimer’s disease (AD) may itself increase risk. We sought to empirically examine relationships between RNT and markers of AD, compared with anxiety and depression symptoms. ..RNT was associated with decline in global cognition (P = .02); immediate (P = .03) and delayed memory (P = … Continue reading Repetitive negative #thinking is associated with #amyloid, tau, and cognitive decline

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Diet, Neurology

Long-term dietary #flavonoid intake and risk of #Alzheimer disease and related dementias in the Framingham Offspring Cohort

Findings from existing prospective observational studies on the protective associations of flavonoid intake and the risk of Alzheimer disease and related dementias (ADRD) are inconsistent largely due to limitations of these studies.. ..Over an average follow-up of 19.7 y in 2801 participants (mean baseline age = 59.1 y; 52% females), there were 193 ADRD events of which 158 were AD. After multivariate and dietary adjustments, … Continue reading Long-term dietary #flavonoid intake and risk of #Alzheimer disease and related dementias in the Framingham Offspring Cohort

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Neurology

Neuroinflammation in Alzheimer’s Disease: Friend or Foe?

Neuroinflammation is part of the complex immune response within the central nervous system (CNS), whose details have been partially elucidated. The CNS immune response involves elements carried from the periphery and resident elements, mainly represented by glial cells. These cells drive neuroinflammation, which can be roughly defined as an articulated physiological response characterized by the production of a plethora of inflammatory mediators that alter the … Continue reading Neuroinflammation in Alzheimer’s Disease: Friend or Foe?

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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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