Getting to the Heart of Alzheimer Disease.

Getting to the Heart of Alzheimer Disease. Circ Res. 2019 Jan 04;124(1):142-149 Authors: Tublin JM, Adelstein JM, Del Monte F, Combs CK, Wold LE Abstract In a somewhat narrow diagnostic lens, Alzheimer disease (AD) has been considered a brain-specific disease characterized by the presence of Aβ (β-amyloid) plaques and tau neural fibrillary tangles and neural inflammation; these pathologies lead to neuronal death and consequently clinical symptoms, such as memory loss, confusion, and impaired cognitive function. However, for decades, researchers have noticed a link between various cardiovascular abnormalities and AD-such as heart failure, coronary artery disease, atrial fibrillation, and vasculopathy. A considerable volume of work has pointed at this head to heart connection, focusing mainly on associations between cerebral hypoperfusion and neuronal degradation. However, new evidence of a possible systemic or metastatic profile to AD calls for further analysis of this connection. Aβ aggregations-biochemically and structurally akin to those found in the typical AD pathology-are now known to be present in the hearts of individuals with idiopathic dilated cardiomyopathy, as well as the hearts of patients with AD. These findings suggest a potential systemic profile of proteinopathies and a new hypothesis for the link between peripheral and central symptoms of heart failure and AD. Herein, we provide an overview of the cardiovascular links to A...
Source: Circulation Research - Category: Cardiology Authors: Tags: Circ Res Source Type: research

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Source: Health News - - Category: Consumer Health News Source Type: news
Authors: Ikeya Y, Nakai T, Murata N, Monden M, Ogaku A, Hori K, Watanabe R, Arai M, Okumura Y Abstract To avoid the negative effects associated with pacing, pacemakers are designed to achieve a pacing cadence as close to physiological pacing as possible. In closed-loop stimulation (CLS; a type of rate-responsive functionality used in pacemakers), the changes in impedance (which correlates with the contractility of the myocardium around the lead tip electrode) are tracked, and the paced heart rate is adjusted accordingly. We herein report a case in which we implanted a pacemaker in a post-tricuspid valve replacement...
Source: Internal Medicine - Category: Internal Medicine Tags: Intern Med Source Type: research
FRIDAY, April 3, 2020 -- The coronavirus pandemic will put extra stress on caregivers of loved ones with dementias, so the Alzheimer's Foundation of America offers some advice. " Reducing stress is always important for caregivers, and even more so...
Source: - Daily MedNews - Category: General Medicine Source Type: news
Publication date: April 2020Source: IJC Heart &Vasculature, Volume 27Author(s): Min Kim, Myunghee Hong, Jong-Youn Kim, In-Soo Kim, Hee Tae Yu, Tae-Hoon Kim, Jae-Sun Uhm, Boyoung Joung, Moon-Hyoung Lee, Hui-Nam Pak
Source: IJC Heart and Vasculature - Category: Cardiology Source Type: research
Conclusion: This meta-analysis supports the concept of RDN as an adjunctive treatment for atrial fibrillation. Further studies with standardized PVI and RDN procedures are needed.
Source: Journal of Hypertension - Category: Cardiology Tags: REVIEWS AND META-ANALYSES Source Type: research
Objective: To assess the prognostic value of electrocardiographic atrial fibrillation in older hypertensive people in the randomized, placebo-controlled Hypertension in the Very Elderly Trial. Methods: Hypertension in the Very Elderly Trial randomized 3845 hypertensive people aged 80 years and over, 3273 with electrographic data on the presence or absence of atrial fibrillation at baseline and without established cardiovascular disease. Multivariate Cox proportional hazard models were used to estimate hazard ratios with 95% confidence intervals (CIs) for all-cause mortality, incident fatal and nonfatal major cardiovas...
Source: Journal of Hypertension - Category: Cardiology Tags: ORIGINAL PAPERS: Risk factors Source Type: research
Alzheimer ’s disease (AD) is one of the leading causes of death in the US and there is no validated drugs to stop, slow or prevent AD. Despite tremendous effort on biomarker discovery, existing findings are mos...
Source: BMC Medical Genomics - Category: Genetics & Stem Cells Authors: Tags: Research Source Type: research
Oral anticoagulants are prescribed for stroke prophylaxis in patients with atrial fibrillation, which is the most common heart arrhythmia worldwide. The vitamin K antagonist (VKA) warfarin is a long-establishe...
Source: BMC Health Services Research - Category: General Medicine Authors: Tags: Research article Source Type: research
Source: IEEE/ACM Transactions on Computational Biology and Bioinformatics - Category: Bioinformatics Source Type: research
To elucidate the key molecules, functions, and pathways that bridge mild cognitive impairment (MCI) and Alzheimer's disease (AD), we investigated open gene expression data sets. Differential gene expression profiles were analyzed and combined with potential MCI- and AD-related gene expression profiles in public databases. Then, weighted gene co-expression network analysis was performed to identify the gene co-expression modules. One module was significantly negatively associated with MCI samples, in which gene ontology function and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed that these genes ...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
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