318,816 results match your criteria: "Israel; and ¶University of Alexandria[Affiliation]"

Biomarkers.

Alzheimers Dement

December 2024

University of California, San Francisco, San Francisco, CA, USA.

Background: Individuals with dementia frequently exhibit disturbed sleep electroencephalography (EEG) microstructures, including spindles and slow oscillations. We have previously developed a sleep EEG-based brain age index (BAI), which integrates multiple sleep EEG microstructures and has been associated with prevalent dementia in clinical populations. Here, we aim to determine if BAI is associated with incident cognitive impairment (CI) in a community population of older men, and its discrimination capability as a digital biomarker.

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The role of spin diffusion in endogenous metal ions DNP.

J Chem Phys

January 2025

Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel.

The sensitivity of solid state nuclear magnetic resonance spectroscopy can be enhanced via dynamic nuclear polarization (DNP) using unpaired electrons as polarizing agents. In metal ions based (MI)-DNP, paramagnetic metal ions are introduced as dopants into inorganic materials serving as endogenous polarizing agents. Having polarizing agents as part of the structure enables signal enhancements within the bulk of the material.

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Plug-In Design of the Microneedle Electrode Array for Multi-Parameter Biochemical Sensing in Gouty Arthritis.

ACS Sens

January 2025

State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology; Guangdong Province Key Laboratory of Display Material and Technology, Sun Yat-Sen University, Guangzhou 510006, China.

Gouty arthritis is one of the most common forms of inflammatory arthritis and has brought a significant burden on patients and society. Current strategies for managing gout primarily focus on long-term urate-lowering therapy. With the rapid advancement of point-of-care testing (POCT) technology, continuous monitoring of gout-related biomarkers like uric acid (UA) or inflammatory cytokines can provide rapid and personalized diagnosis for gout management.

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Anaemia is a frequent consequence of many gastrointestinal (GI) diseases in children and it can even be the initial presenting symptom of underlying chronic GI disease. The definition of anaemia is age and gender-dependent and it can be classified based on pathophysiology, red cell morphology, and clinical presentation. Although nutritional deficiencies, including GI malabsorption of nutrients and GI bleeding, play a major role, other pathophysiologic mechanisms seen in chronic GI diseases, whether inflammatory (e.

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Background: We aim to describe the imaging findings in pre-symptomatic and early-symptomatic individuals carrying a recently described novel APP duplication rearrangement causing early-onset AD (EOAD).

Method: We studied individuals from one pedigree that carry APP duplication and CH 5 mutation gain that had structural and resting state functional (rs-f) brain MRI. Non-carrier family members were assessed as controls.

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Developing Topics.

Alzheimers Dement

December 2024

Validation Training Institute, Jerusalem, Israel; University of Edinburgh, Edinburgh, United Kingdom.

Background: Despite the prevalence of patients living with dementia, physicians and medical students, in particular, have received little or no dementia-specific training to help them communicate effectively with this population. Connecting and communicating with persons living through cognitive change requires specific skills: developing empathy and identifying coping mechanisms, symbols, and the stages of resolutions for those living with cognitive decline. These skills were taught in the beta test, Validation for Physicians and Medical Provider training, based upon the evidence-based Validation method by Naomi Feil.

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Background: Weakened white matter (WM) integrity is highly associated with dementia risk. Still, not everyone with WM changes develops dementia, suggesting the important role modifiable lifestyle factors may have in reducing dementia risk. We investigated how social relationships in mid-life may modify the association between WM integrity and incident dementia risk within race and sex subgroups.

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Background: The Internal Jugular Veins (IJVs) and the non-jugular veins (NJVs) are two pathways responsible for intracranial blood drainage. The NJVs are usually the less prominent drainage system and have been demonstrated to become smaller during aging. This phenomenon may indicate less affective venues drainage and hence less CNS's waste products clearance as we age.

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Background: Traumatic Brain Injury (TBI) is one of the most common nonheritable causes of Alzheimer's disease (AD). However, there is lack of effective treatment for both AD and TBI. We posit that network-based integration of multi-omics and endophenotype disease module coupled with large real-world patient data analysis of electronic health records (EHR) can help identify repurposable drug candidates for the treatment of TBI and AD.

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Background: ABCA1-mediated cholesterol transport is a central feature in many lipid- dependent diseases including APOE4-associated Alzheimer's disease and atherosclerosis-CVD. ABCA1 upregulation of RNA transcription by nuclear factors (LXR, RXR) have been associated with liver side-effects because of the common promotor element for ABCA1 and Fatty Acid Synthase. The ABCA1 agonist CS6253, derived from the C-terminal of apoE was designed to stabilize and enhance ABCA1 function, thereby providing a safe alternative to transcriptional upregulation.

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Background: Long-term care (LTC) residents are a previously untested and highly vulnerable population at risk of elder abuse (EA) and its many negative health outcomes. The detection of elder abuse within the LTC context is urgent and time-sensitive.

Objective: The overarching aim of this study is to evaluate the feasibility of implementing the Elder Abuse Suspicion Index - long-term care (EASI-ltc): the first comprehensive detection tool of its kind designed specifically to identify the abuse of cognitively-apt persons living in LTC.

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Background: Hyperbaric oxygen therapy (HBOT) is a treatment in which oxygen-enriched air (up to 100%) is administered to patients in a chamber at a pressure above one atmosphere absolute and is approved for the treatment of T2D ischemic wounds. Type 2 diabetes (T2D) is a risk factor for dementia. Ischemia due to vascular pathology is hypothesized to be an underlying mechanism for this association.

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Background: The cognitive reserve (CR) theory seeks to explain the mismatch often reported between brain damage and its clinical expression. Unlike most previous studies that focused on individuals with memory deterioration before the diagnosis of Alzheimer's disease (AD), the present study examined the late stages of the disease. The study sought to confirm the hypothesis that patients with higher CR are diagnosed later and decline faster than those with lower CR because their brain pathology is more severe.

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Introduction: Lecanemab (LEQEMBI®), a humanized monoclonal antibody targeting Amyloid-beta (Aβ) protofibrils, received full FDA approval in July 2023 for treating early-stage Alzheimer's disease (AD). This abstract highlights Tel Aviv Medical Center's (TLVMC) specialized infrastructure for early AD diagnosis and treatment and includes presenting baseline characteristics of initial patients opting for LEQEMBI®.

Methods: Outlining our clinics' operational experience in establishing the Center for advanced treatments for AD, treatment protocol, and a descriptive analysis of baseline assessment data including demographics, baseline Magnetic-Resonance-Imaging (MRI), Cerebrospinal-fluid (CSF)/PET biomarkers, pre-treatment cognitive evaluations (Mini-Mental-State-Examination (MMSE)/Montreal-Cognitive-Assessment (MoCA)), and Apolipoprotein-E (APOE) status.

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ENPP-1 is a transmembrane enzyme involved in nucleotide metabolism, and its overexpression is associated with various cancers, making it a potential therapeutic target and biomarker for early tumor diagnosis. Current detection methods for ENPP-1 utilize a colorimetric probe, , which has significant limitations in sensitivity. Here, we present probe , the first nucleic acid-based chemiluminescent probe designed for rapid and highly sensitive detection of ENPP-1 activity.

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Carcinogenesis often involves significant alterations in the cancer genome, marked by large structural variants (SVs) and copy number variations (CNVs) that are difficult to capture with short-read sequencing. Traditionally, cytogenetic techniques are applied to detect such aberrations, but they are limited in resolution and do not cover features smaller than several hundred kilobases. Optical genome mapping (OGM) and nanopore sequencing [Oxford Nanopore Technologies (ONT)] bridge this resolution gap and offer enhanced performance for cytogenetic applications.

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Primary progressive multiple sclerosis (PPMS) affects 10-15% of multiple sclerosis patients and presents significant variability in the rate of disability progression. Identifying key biological features and patients at higher risk for fast progression is crucial to develop and optimize treatment strategies. Peripheral blood cell transcriptome has the potential to provide valuable information to predict patients' outcomes.

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Objective: To evaluate the characteristics of patients who exceeded the body mass index (BMI) threshold for fertility treatment at their initial visit and identify those for whom treatment would be constrained.

Design: Retrospective cohort study.

Setting: Academic medical center.

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Venous thromboembolic disease remains a leading cause of maternal morbidity and mortality. We report a case of a 30-year-old woman at 37 gestation with a history of thalassaemia intermedia and splenectomy. During pregnancy, she had been managed with frequent blood transfusions and enoxaparin.

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Background: Perioperative right ventricular (RV) dysfunction is associated with increased morbidity and mortality in cardiac surgery patients. This study aimed to demonstrate proof of concept in generating intraoperative RV pressure-volume (PV) loops and conducting an end-systolic PV relationship (ESPVR) analysis using data obtained from routinely used intraoperative monitors.

Methods: Adult patients undergoing cardiac surgery with the placement of a pulmonary artery catheter (PAC) between May 2023 and March 2024 were included prospectively.

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Objective: The transplantation of hearts from donors who experienced intracranial bleeding (ICB) has been associated with inferior long-term survival in both single-center analyses and, more recently, with the United Network for Ogan Sharing Registry. The purpose of this study was to further explore this relationship through propensity score matching in recipients receiving donor hearts from ICB and non-ICB donors in a large national registry.

Methods: We performed a retrospective cohort analysis of the United Network for Organ Sharing Registry Organ Procurement and Transplantation Network between 2006 and 2018 for adult candidates wait-listed for isolated heart transplantation.

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Pseudomorphic Transformation in Nanostructured Thiophene-Based Materials.

ACS Nano

January 2025

Consiglio Nazionale delle Ricerche (CNR) - Istituto per la Sintesi Organica e la Fotoreattività (ISOF), via Piero Gobetti 101, 40129 Bologna, Italy.

This study reveals the capability of nanostructured organic materials to undergo pseudomorphic transformations, a ubiquitous phenomenon occurring in the mineral kingdom that involves the replacement of a mineral phase with a new one while retaining the original shape and volume. Specifically, it is demonstrated that the postoxidation process induced by HOF·CHCN on preformed thiophene-based 1D nanostructures preserves their macro/microscopic morphology while remarkably altering their electro-optical properties by forming a new oxygenated phase. Experimental evidence proves that this transformation proceeds via an interface-coupled dissolution-precipitation mechanism, leading to the growth of a porous oxidized shell that varies in thickness with exposure time, enveloping the pristine smooth core.

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Background: High psychological resilience is associated with improved functional outcomes for older adults recovering from hip fracture. The objective of this study was to identify factors associated with increased psychological resilience in older women after hip fracture.

Methods: 129 women aged ≥65 years with recent surgically-repaired hip fracture were enrolled in a trial of exercise and testosterone therapy.

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