Alzheimer's Disease Research

10:42 EDT 18th October 2018 | BioPortfolio

Quantitative Characterization of Carotid Plaque Components Using MR Apparent Diffusion Coefficients and Longitudinal Relaxation Rates at 3T: A Comparison With Histology.

There is limited evidence of parametric MR mapping to characterize carotid plaques associated with cerebral ischemic events.

Communication Predictors of Patient and Companion Satisfaction with Alzheimer's Genetic Risk Disclosure.

The objective of this study was to identify how features of Alzheimer's disease (AD) genetic risk disclosure communication relate to patient and visit companion satisfaction. We conducted secondary analyses of 79 session recordings from the fourth REVEAL Study, a randomized-controlled trial of AD genetic risk disclosure among patients with mild cognitive impairment. Patient and companion satisfact...

Mild renal impairment is associated with calcified plaque parameters assessed by CT angiography in people living with HIV.

To investigate the association of mild renal impairment and coronary plaque in people living with HIV (PLHIV).

A Feasibility Study of a Multifaceted Walking Intervention to Maintain the Functional Mobility, Activities of Daily Living, and Quality of Life of Nursing Home Residents With Dementia.

The aim of the study was to evaluate the feasibility, acceptability, and efficacy of a multifaceted walking intervention (MWI) aimed to maintain the functional mobility, activities of daily living function, and quality of life of long-term care home residents with dementia.

Correction: Use of sedative-hypnotics and the risk of Alzheimer's dementia: A retrospective cohort study.

[This corrects the article DOI: 10.1371/journal.pone.0204413.].

Association of Androgen Deprivation Therapy With Dementia in Men With Prostate Cancer Who Receive Definitive Radiation Therapy.

Association of Bilateral Salpingo-Oophorectomy Before Menopause Onset With Medial Temporal Lobe Neurodegeneration.

There is an increased risk of cognitive impairment or dementia in women who undergo bilateral salpingo-oophorectomy (BSO) before menopause. However, data are lacking on the association of BSO before menopause with imaging biomarkers that indicate medial temporal lobe neurodegeneration and Alzheimer disease pathophysiology.

Toothbrush Wear in Relation to Tooth Brushing Effectiveness.

To investigate to what extent the degree of toothbrush wear of 3-month-old manual toothbrushes influence plaque scores.

3H-1,2-dithiole-3-thione protects PC12 cells against amyloid beta 1-42 (Aβ) induced apoptosis via activation of the ERK1/2 pathway.

Increasing evidence displays that deposition of aggregated β-amyloid (Aβ) leads to neuronal cell apoptosis, thus aggravates the pathological progression of Alzheimer's disease (AD). 3H-1,2-dithiole-3-thione (D3T) has been proved to exert neuroprotective effects. However, the effect of D3T on protecting against Aβ-induced apoptosis and the underlying mechanism are unknown.

Exercise-Induced Brain-Derived Neurotrophic Factor Expression: Therapeutic Implications for Alzheimer's Dementia.

Emerging evidence indicates that moderate intensity aerobic exercise is positively correlated with cognitive function and memory. However, the exact mechanisms underlying such improvements remain unclear. Recent research in animal models allows proposition of a pathway in which brain-derived neurotrophic factor (BDNF) is a key mediator. This perspective draws upon evidence from animal and human st...

Discriminative Accuracy of 18Fflortaucipir Positron Emission Tomography for Alzheimer Disease vs Other Neurodegenerative Disorders.

The positron emission tomography (PET) tracer [18F]flortaucipir allows in vivo quantification of paired helical filament tau, a core neuropathological feature of Alzheimer disease (AD), but its diagnostic utility is unclear.

Positron emission tomography : from classical indications to new and future applications.

First clinical indications of positron emission tomography (PET) were in the fields of neurology and cardiology, but oncology is the domain in which PET got its recognition as an essential diagnostic tool. Its fast diffusion as an imaging method for diagnosis and follow-up of cancer has been facilitated by the existence of a single tracer for all kinds of oncological PET explorations. Nowadays, th...

Association of visual hallucinations with very mild degenerative dementia due to dementia with Lewy bodies.

Complex, well-formed, and detailed visual hallucinations (VHs) are among the core clinical features of dementia with Lewy bodies (DLB). We investigated the diagnostic value of VHs in different types of very mild degenerative dementia.

Elevated CSF GAP-43 is Alzheimer's disease specific and associated with tau and amyloid pathology.

The level of the presynaptic protein growth-associated protein 43 (GAP-43) in cerebrospinal fluid (CSF) has previously been shown to be increased in Alzheimer's disease (AD) and thus may serve as an outcome measure in clinical trials and facilitate earlier disease detection.

APOE genotypes as a risk factor for age-dependent accumulation of cerebrovascular disease in older adults.

Apolipoprotein E (APOE) is a susceptibility gene for late-onset Alzheimer's disease neuropathology; less is known about the relationship between APOE and cerebrovascular disease (CVD) neuropathology.

Leisure-time physical activity sustained since midlife and preservation of cognitive function: The Atherosclerosis Risk in Communities study cohort.

We tested the hypotheses that higher levels of and persistence of midlife leisure-time physical activity (LTPA) for a long term are associated with lower cognitive decline and less incident dementia.

CDT2-controlled cell cycle reentry regulates the pathogenesis of Alzheimer's disease.

Altered cell cycle reentry has been observed in Alzheimer's disease (AD). DTL was predicted as the top driver of a cell cycle subnetwork associated with AD.

Understanding disease progression and improving Alzheimer's disease clinical trials: Recent highlights from the Alzheimer's Disease Neuroimaging Initiative.

The overall goal of the Alzheimer's Disease Neuroimaging Initiative (ADNI) is to validate biomarkers for Alzheimer's disease (AD) clinical trials. ADNI is a multisite, longitudinal, observational study that has collected many biomarkers since 2004. Recent publications highlight the multifactorial nature of late-onset AD. We discuss selected topics that provide insights into AD progression and outl...

Smaller medial temporal lobe volumes in individuals with subjective cognitive decline and biomarker evidence of Alzheimer's disease-Data from three memory clinic studies.

Previous studies showed associations of brain volume differences and biomarker evidence for Alzheimer's disease (AD) in subjective cognitive decline (SCD). The consistency of this finding across SCD studies has not been investigated.

Protein nitration profile of CD3 lymphocytes from Alzheimer disease patients: Novel hints on immunosenescence and biomarker detection.

Alzheimer's disease (AD) is a progressive form of dementia characterized by increased production of amyloid-β plaques and hyperphosphorylated tau protein, mitochondrial dysfunction, elevated oxidative stress, reduced protein clearance, among other. Several studies showed systemic modifications of immune and inflammatory systems due, in part, to decreased levels of CD3 lymphocytes in peripheral bl...

Appropriate use criteria for lumbar puncture and cerebrospinal fluid testing in the diagnosis of Alzheimer's disease.

The Alzheimer's Association convened a multidisciplinary workgroup to develop appropriate use criteria to guide the safe and optimal use of the lumbar puncture procedure and cerebrospinal fluid (CSF) testing for Alzheimer's disease pathology detection in the diagnostic process.

Prenylated quinolinecarboxylic acid derivative prevents neuronal cell death through inhibition of MKK4.

The development of neuroprotective agents is necessary for the treatment of neurodegenerative diseases. Here, we report PQA-11, a prenylated quinolinecarboxylic acid (PQA) derivative, as a potent neuroprotectant. PQA-11 inhibits glutamate-induced cell death and caspase-3 activation in hippocampal cultures, as well as inhibits N-Methyl-4-phenylpyridinium iodide- and amyloid β-induced cell death in...

Inhibition of amyloid fibril formation and disassembly of pre-formed fibrils by natural polyphenol rottlerin.

Natural polyphenols, curcumin, rottlerin and EGCG were selected for initial computational modeling of protein-ligand interaction patterns. The docking calculations demonstrated that these polyphenols can easily adjust their conformational shape to fit well into the binding sites of amyloidogenic proteins. The experimental part of the study focused on the effect of rottlerin on fibrillation of thre...

Study on urine metabolic profile of Aβ25-35-induced Alzheimer's disease by using UHPLC-Q-TOF-MS.

Alzheimer's disease (AD) is a progressive neurodegenerative disorder, with no effective method for its treatment so far. The pathogenesis of AD has been reported, but the endogenous metabolic profile and disease-related biomarkers are still not clear. To better understand AD, an AD model induced by injecting β-amyloid 25-35 (Aβ 25-35) solution into bilateral hippocampus was developed on Sprague-...

Alzheimer's disease and late-onset epilepsy of unknown origin: two faces of beta amyloid pathology.

Although amyloid pathology plays a role in epilepsy, little is known about the relationship between beta amyloid and progression to Alzheimer's disease (AD) among patients with late-onset epilepsy of unknown origin (LOEU). This multicenter, observational, prospective study enrolled 40 consecutive nondemented adults diagnosed with LOEU, together with 43 age- and sex-matched healthy controls. All pa...

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