128,526 results match your criteria: "Tennessee; University of Miami N.N.[Affiliation]"

Nanoscale Magnetic Ordering Dynamics in a High Curie Temperature Ferromagnet.

Nano Lett

January 2025

Materials Science and Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, Tennessee 37831, United States.

Thermally driven transitions between ferromagnetic and paramagnetic phases are characterized by critical behavior with divergent susceptibilities, long-range correlations, and spin dynamics that can span kHz to GHz scales as the material approaches the critical temperature , but it has proven technically challenging to probe the relevant length and time scales with most conventional measurement techniques. In this study, we employ scanning nitrogen-vacancy center based magnetometry and relaxometry to reveal the critical behavior of a high- ferromagnetic oxide near its Curie temperature. Cluster analysis of the measured temperature-dependent nanoscale magnetic textures points to a 3D universality class with a correlation length that diverges near .

View Article and Find Full Text PDF

Tumor-specific HLA class I expression is required for cytotoxic T-cell elimination of cancer cells expressing tumor-associated or neo-antigens. Cancers downregulate antigen presentation to avoid adaptive immunity. The highly polymorphic nature of the genes encoding these proteins, coupled with quaternary-structure changes after formalin fixation, complicate detection by immunohistochemistry.

View Article and Find Full Text PDF

Importance: Cardiovascular health outcomes associated with noncigarette tobacco products (cigar, pipe, and smokeless tobacco) remain unclear, yet such data are required for evidence-based regulation.

Objective: To investigate the association of noncigarette tobacco products with cardiovascular health outcomes.

Design, Setting, And Participants: This cohort study was conducted within the Cross Cohort Collaboration Tobacco Working Group by harmonizing tobacco-related data and conducting a pooled analysis from 15 US-based prospective cohorts with data on the use of at least 1 noncigarette tobacco product ranging between 1948 and 2015.

View Article and Find Full Text PDF

Importance: There is a lack of long-term efficacy and safety data on hereditary transthyretin amyloidosis with polyneuropathy (hATTR-PN) and on RNA interference (RNAi) therapeutics in general. This study presents the longest-term data to date on patisiran for hATTR-PN.

Objective: To present the long-term efficacy and safety of patisiran in adults with hATTR-PN.

View Article and Find Full Text PDF

Objective: To understand the influence of acute alcohol consumption on the recall and recognition of warning messages.

Method: Participants ( = 82) were randomly assigned to a condition where they consumed alcoholic beverages (target blood alcohol concentrations of 0.06%-0.

View Article and Find Full Text PDF

Purpose Of Review: Over the last quarter century, the clinical evidence surrounding the use of electroconvulsive therapy (ECT) in individuals with autism spectrum disorder (ASD) has expanded. This review provides the most up-to-date findings on the usage of ECT in ASD and discusses these results within the historical context and direct patient care experience.

Recent Findings: ECT is typically implemented for psychotropic-refractory catatonic, affective, psychotic, and combined pathology for individuals across the lifespan.

View Article and Find Full Text PDF

Objective: The Pediatric Emergency Care Applied Research Network (PECARN) derived and externally validated a clinical prediction rule to identify children with blunt torso trauma at low risk for intraabdominal injuries undergoing acute intervention (IAI). Little is known about the risk for IAI when only one or two prediction rule variables are positive. We sought to determine the risk for IAI when either one or two PECARN intraabdominal injury rule variables are positive.

View Article and Find Full Text PDF

Background And Aims: Short courses of intravenous (iv) methylprednisolone (MP) can cause drug induced liver injury (DILI). The aim of this study was to assess the clinical features and HLA associations of MP-related DILI enrolled in the US DILI Network (DILIN).

Methods: DILIN cases with MP as a suspected drug were reviewed.

View Article and Find Full Text PDF

Background: Artificial intelligence (AI)-powered platforms may be used to ensure that clinically significant lung nodules receive appropriate management. We studied the impact of a commercially available AI natural language processing tool on detection of clinically significant indeterminate pulmonary nodules (IPNs) based on radiology reports and provision of guideline-consistent care.

Study Design: All computed tomography (CT) scans performed at a single tertiary care center in the outpatient or emergency room setting between 20-Feb-2024 and 20-March-2024 were processed by the AI natural language processing algorithm.

View Article and Find Full Text PDF

Permeance-selectivity trade-offs are inherent to polymeric membranes. In fuel cells, thinner proton exchange membranes (PEMs) could enable higher proton conductance and increased power density with lower area-specific resistance (ASR), smaller ohmic losses, and lower ionomer cost. However, reducing thickness is accompanied by an increase in undesired species crossover harming performance and long-term efficiency.

View Article and Find Full Text PDF

Association of Grit and Resilience With Short-Term Post-Transplant Outcomes in Lung Allograft Recipients.

Clin Transplant

January 2025

Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Vanderbilt University, Nashville, Tennessee, USA.

The importance of mental toughness on lung transplant outcomes is unknown. We performed a pilot study to assess whether pretransplant grit and resilience are associated with short-term posttransplant outcomes. We enrolled 31 lung transplant candidates, of whom 7 (26%) had greater mental toughness, defined as the upper tertile for both grit and resilience within our cohort.

View Article and Find Full Text PDF

Background: The adoption of leadless pacemakers (LPMs) is increasing, yet the impact of body mass index (BMI) on procedural outcomes remains underexplored.

Objective: The purpose of this study was to explore the impact of BMI on in-hospital outcomes for patients receiving LPM implantation.

Methods: Data from the National Inpatient Sample from 2018-2021 were analyzed for patients older than 18 years who underwent LPM implantation, with specific inclusion and exclusion criteria applied.

View Article and Find Full Text PDF

Cardiac implantable electronic devices (CIEDs) generate substantial data, often stored in image or PDF formats. Remote monitoring, now an integral component of patient care, places considerable administrative burdens on clinicians and staff, in large part due to the challenge of integrating these data seamlessly into electronic health records. Since 2006, the Heart Rhythm Society, in collaboration with the CIED industry, has led an initiative to establish a unified standard nomenclature.

View Article and Find Full Text PDF

Cancer cells within tumors exhibit a wide range of phenotypic states driven by non-genetic mechanisms in addition to extensively studied genetic alterations. Conversions among cancer cell states can result in intratumoral heterogeneity which contributes to metastasis and development of drug resistance. However, mechanisms underlying the initiation and/or maintenance of such phenotypic plasticity are poorly understood.

View Article and Find Full Text PDF

has been identified in human and mouse HD brain as the pathogenic exon 1 mRNA generated from aberrant splicing between exon 1 and 2 that contributes to aggregate formation and neuronal dysfunction (Sathasivam et al., 2013). Detection of the HTT exon 1 protein (HTTex1p) has been accomplished with surrogate antibodies in fluorescence-based reporter assays (MSD, HTRF), and immunoprecipitation assays, in HD postmortem cerebellum and knock-in mice but direct detection by SDS-PAGE and western blot assay has been lacking.

View Article and Find Full Text PDF

Molecular Characterization of Bovine in Equine Sarcoids in Egypt.

Vet Med Int

January 2025

Veterinary Population Medicine Department and Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota 55108, USA.

Bovine papillomaviruses (BPVs) commonly cause sarcoids in equines worldwide. Equine sarcoids (ESs) reduce the working ability of draft animals and produce untoward cosmetic changes in racing and dancing equine. In this study, nine horses and 16 donkeys with sarcoids were presented to Zagazig University Veterinary Clinic, Zagazig, Egypt.

View Article and Find Full Text PDF

This study addresses the global issue of foodborne illness, specifically focusing on those resulting from the consumption of leafy green vegetables. It explores the rising trend of consuming minimally processed or raw foods and the imperative of maintaining safety standards starting at the preharvest stage to prevent pathogenic bacterial contamination. The study identifies soil and irrigation water as key sources of pathogens and emphasizes the need for strict preventive measures during production and preharvest.

View Article and Find Full Text PDF

Cardiac implantable electronic devices (CIEDs), including pacemakers, implantable cardiac defibrillators (ICD), and cardiac resynchronization therapy (CRT) devices, regulate heart rate and rhythm in patients with cardiac conditions. With an aging population, CIED-related complications, especially pacemaker pocket infections, are rising. Risk factors include frailty, older age, and superficial device fixation, while risk mitigation involves larger pocket sizes, submuscular fixation, and absorbable antibacterial envelopes.

View Article and Find Full Text PDF

The Biorepository and Integrative Genomics (BIG) Initiative in Tennessee has developed a pioneering resource to address gaps in genomic research by linking genomic, phenotypic, and environmental data from a diverse Mid-South population, including underrepresented groups. We analyzed 13,152 genomes from BIG and found significant genetic diversity, with 50% of participants inferred to have non-European or several types of admixed ancestry. Ancestry within the BIG cohort is stratified, with distinct geographic and demographic patterns, as African ancestry is more common in urban areas, while European ancestry is more common in suburban regions.

View Article and Find Full Text PDF

This article presents the rationale, challenges, and adaptive strategies employed during the initiation and execution of the arteriovenous (AV) access trial-a multicenter randomized controlled trial (RCT) comparing AV fistulas and AV grafts for hemodialysis in older adults with major comorbidities. Motivated by shifts in epidemiologic landscapes and evolving guidelines moving away from a fistula-first approach and to more patient-centric approaches, the objective of this randomized controlled trial was to fill critical knowledge gaps in determining the optimal vascular access for this complex patient population. We outline the challenges encountered in patient recruitment along with measures employed to overcome these obstacles in recruitment.

View Article and Find Full Text PDF

Stability of diluted chlorhexidine for skin testing in drug allergy evaluations.

J Allergy Clin Immunol Glob

February 2025

Division of Allergy, Asthma and Clinical Immunology, Mayo Clinic, Scottsdale, Ariz.

Background: Chlorhexidine gluconate (CHX), a common cause of perioperative anaphylaxis, is frequently used for skin testing in allergy evaluations. Although CHX's maximal nonirritating concentrations are known, the stability of its dilutions for skin testing remains unexplored, particularly when sterile water for injection (SWFI) or normal saline (NS) are used as diluents.

Objective: Our aim was to evaluate the stability and precipitation of CHX when diluted with SWFI or NS for drug allergy skin testing.

View Article and Find Full Text PDF

From Sunlight to Solutions: Closing the Loop on Halide Perovskites.

ACS Mater Au

January 2025

Institute for Advanced Materials and Manufacturing, Department of Materials Science and Engineering, Knoxville, Tennessee 37996, United States.

Halide perovskites (HPs) are emerging as key materials in the fight against global warming with well recognized applications, such as photovoltaics, and emergent opportunities, such as photocatalysis for methane removal and environmental remediation. These current and emergent applications are enabled by a unique combination of high absorption coefficients, tunable band gaps, and long carrier diffusion lengths, making them highly efficient for solar energy conversion. To address the challenge of discovery and optimization of HPs in huge chemical and compositional spaces of possible candidates, this perspective discusses a comprehensive strategy for screening HPs through automated high-throughput and combinatorial synthesis techniques.

View Article and Find Full Text PDF

Opioid use disorder is heritable, yet its genetic etiology is largely unknown. C57BL/6J and C57BL/6NJ mouse substrains exhibit phenotypic diversity in the context of limited genetic diversity which together can facilitate genetic discovery. Here, we found C57BL/6NJ mice were less sensitive to oxycodone (OXY)-induced locomotor activation versus C57BL/6J mice in a conditioned place preference paradigm.

View Article and Find Full Text PDF