110,073 results match your criteria: "University of Tennessee; ssarles@utk.edu.[Affiliation]"

Left atrial appendage occlusion (LAAO) has become an important therapeutic target for stroke prevention in patients with nonvalvular atrial fibrillation. Over the past 2 decades, several advancements in LAAO devices (percutaneous and surgical) have been made for stroke prevention and arrhythmia therapy. However, there are several unanswered questions regarding optimal patient selection, the preferred LAAO approach and device, the management of periprocedural and postprocedural complications, including pericardial effusion, device-related thrombus, and device leaks.

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The PERFORMANCE II Trial: A Prospective Multicenter Investigation of a Novel Carotid Stent System.

JACC Cardiovasc Interv

December 2024

Department for Angiology, Brandenburg Medical School Theodor Fontane, Campus Clinic Brandenburg, Center for Internal Medicine I, Berlin, Germany; Department of Angiology, Sankt-Gertrauden-Krankenhaus, Berlin, Germany.

Background: Several randomized clinical trials have shown that the composite endpoint of death, stroke, and myocardial infarction (MI) is equivalent between carotid artery stenting and carotid endarterectomy. However, the risk of minor stroke has been consistently higher with carotid artery stenting.

Objectives: The authors sought to evaluate the safety and effectiveness of a novel carotid stent system comprised of a stent, an adjustable integrated embolic filter and a postdilation balloon, in patients at elevated risk for adverse events from carotid endarterectomy.

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E3 ligase substrate adaptor SPOP fine-tunes the UPR of pancreatic β cells.

Genes Dev

December 2024

Institute for Diabetes, Obesity, and Metabolism, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19146, USA;

The Cullin-3 E3 ligase adaptor protein SPOP targets proteins for ubiquitination and proteasomal degradation. We previously established the β-cell transcription factor (TF) and human diabetes gene PDX1 as an SPOP substrate, suggesting a functional role for SPOP in the β cell. Here, we generated a β-cell-specific deletion mouse strain ( ) and found that is necessary to prevent aberrant basal insulin secretion and for maintaining glucose-stimulated insulin secretion through impacts on glycolysis and glucose-stimulated calcium flux.

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As organizations are increasingly turning to voluntary wellness programs to improve employee well-being, the majority of studies in literature have focused on corporate-level benefits of wellness programs, such as productivity. However, there is a scarcity of studies that examine the intrinsic motivators that influence employee participation in such programs. In this study, we use a unique secondary dataset from a voluntary corporate wellness program and propose a novel theoretical framework based on motivational and behavioral theories to examine and understand the participants' behavior.

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Patients diagnosed with metastatic basal cell carcinoma (BCC) have a poor prognosis. The current standard of care for adults with locally advanced or metastatic BCC who are not candidates for surgery or radiation therapy is treatment with hedgehog pathway inhibitors (HHIs). For patients who progress while on this therapy, further treatment options are limited.

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Objective: To determine if surgical skills instructors' experience and qualifications influence students' learning of small animal ovariohysterectomy on a model (mOVH).

Sample Population: Second-year veterinary students (n = 105).

Methods: Students were randomized to three groups, taught by: (1) residency-trained surgeons with over 3 years' experience teaching mOVH, (2) general practitioners with over 3 years' experience teaching mOVH (GP >3), and (3) general practitioners with under 3 years' experience (GP <3).

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Pultruded carbon fiber-reinforced composites are attractive to the wind energy industry due to the rapid production of highly aligned unidirectional composites with enhanced fiber volume fractions and increased specific strength and stiffness. However, high volume carbon fiber manufacturing remains cost-prohibitive. This study investigates the feasibility of a pultruded low-cost textile carbon fiber-reinforced epoxy composite as a promising material in spar cap production was undertaken based on mechanical response to four-point flexure loading.

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Background: Angiotensin-converting enzyme inhibitors (ACEI) are the most common cause of drug-induced angioedema in the United States. Our primary objective was to provide descriptive evidence regarding emergency department (ED) disposition of ACEI-induced angioedema patients. Our secondary objective was to evaluate unique patterns in those with ACEI-induced angioedema at a tertiary referral center, including demographics, details of those requiring intubation, length of inpatient stay, and allergy documentation.

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The International System for Serous Fluid Cytopathology (TIS) survey in preparation for TIS 2.0.

J Am Soc Cytopathol

December 2024

Department of Cellular Pathology, Guy's & St. Thomas' NHS Foundation Trust, London, UK.

Introduction: The International System for Serous Fluid Cytopathology (TIS) has gained acceptance and has led to literature validating original concepts and suggesting refinements. In preparation for the second edition of TIS, editors generated a survey to solicit experience with and opinions about TIS.

Materials And Methods: An online survey available from March 8 to June 15, 2024, included 56 questions, offered in 7 languages, related to the practice of serous fluid cytopathology.

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Objectives: Chlamydia trachomatis is the most commonly diagnosed bacterial sexually transmitted infection (STI) worldwide. Diagnosis relies on nucleic acid amplification techniques, such as PCR, which does not distinguish between viable pathogens and residual bacterial DNA, leading to potential overdiagnosis and overtreatment. PCR with confirmation of pathogen viability has not been widely explored in the STI field.

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Liver fatty acid binding protein FABP1 transfers substrates to cytochrome P450 4A11 for catalysis.

J Biol Chem

January 2025

Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146, United States. Electronic address:

Cytochrome P450 (P450) 4A11 is a human P450 family 4 ω-oxidase that selectively catalyzes the hydroxylation of the terminal methyl group of fatty acids. Cytosolic lipids are the substrates for the enzyme but are considered to be primarily bound in cells by liver fatty acid binding protein (FABP1). Lipid binding to recombinant FABP1 with a fluorophore displacement assay showed substantial preference of FABP1 for ≥16-carbon fatty acids (K < 70 nM).

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Porcine reproductive and respiratory syndrome (PRRS), caused by the highly variable PRRS virus (PRRSV), presents a significant challenge to the swine industry due to its pathogenic and economic burden. The virus evades host immune responses, particularly interferon (IFN) signaling, through various viral mechanisms. Traditional vaccines have shown variable efficacy in the field, prompting the exploration of novel vaccination strategies.

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Objective: To describe the clinical characteristics, treatments, complications, and outcomes in dogs with nasal planum squamous cell carcinoma (SCC) undergoing local treatment.

Methods: A retrospective, multi-institutional study was performed. Medical records were searched to identify dogs diagnosed with nasal planum SCC.

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The RUCkus around plaque.

J Cardiovasc Comput Tomogr

January 2025

University of Tennessee Medical Center, Heart Lung and Vascular Institute, Department of Cardiology, Knoxville, TN, USA. Electronic address:

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Guidance on biomaterials for periodontal tissue regeneration: Fabrication methods, materials and biological considerations.

Dent Mater

January 2025

Department of Cariology, Restorative Sciences and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA. Electronic address:

Regeneration of the multiple tissues and interfaces in the periodontal complex necessitates multidisciplinary evaluation to establish structure/function relationships. This article, an initiative of the Academy of Dental Materials, provides guidance for performing chemical, structural, and mechanical characterization of materials for periodontal tissue regeneration, and outlines important recommendations on methods of testing bioactivity, biocompatibility, and antimicrobial properties of biomaterials/scaffolds for periodontal tissue engineering. First, we briefly summarize periodontal tissue engineering fabrication methods.

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RIFM fragrance ingredient safety assessment, 2-phenoxyethyl isobutyrate, CAS Registry Number 103-60-6.

Food Chem Toxicol

January 2025

Member Expert Panel for Fragrance Safety, The Journal of Dermatological Science (JDS), , Department of Dermatology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan.

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Introduction: Laparoscopic inguinal hernia repair (IHR) is being performed more frequently in children, but few studies have evaluated surgical practice patterns in infants. In this study, we surveyed pediatric surgeons within a regional consortium to assess current preferences for IHR strategy in infants. We hypothesized that early-career pediatric surgeons would prefer laparoscopic IHR over open IHR in this patient population.

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Objective: Cervical spondylotic myelopathy (CSM) shows varying levels of improvement after surgical treatment. While some patients improve soon after surgery, others may take months to years to show any signs of improvement. The goal of this study was to evaluate postoperative improvement, patient-reported outcomes, and patient satisfaction up to 2 years after surgical treatment for CSM, which will help optimize the current treatment strategies and effectively manage patient expectations.

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Objective: The goal of this study was to compare the impact of using a lower thoracic (LT) versus upper lumbar (UL) level as the upper instrumented vertebra (UIV) on clinical and radiographic outcomes following minimally invasive surgery for adult spinal deformity.

Methods: A multicenter retrospective study design was used. Inclusion criteria were age ≥ 18 years, and one of the following: coronal Cobb angle > 20°, sagittal vertical axis > 50 mm, pelvic tilt > 20°, pelvic incidence-lumbar lordosis mismatch > 10°.

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Anti-Mycobacterial Activity of Bacterial Topoisomerase Inhibitors with Dioxygenated Linkers.

ACS Infect Dis

January 2025

Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado 80523, United States.

Developing new classes of drugs that are active against infections caused by is a priority for treating and managing this deadly disease. Here, we describe screening a small library of 20 DNA gyrase inhibitors and identifying new lead compounds. Three structurally diverse analogues were identified with minimal inhibitory concentrations of 0.

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Significance: Optimal meibography utilization and interpretation are hindered due to poor lid presentation, blurry images, or image artifacts and the challenges of applying clinical grading scales. These results, using the largest image dataset analyzed to date, demonstrate development of algorithms that provide standardized, real-time inference that addresses all of these limitations.

Purpose: This study aimed to develop and validate an algorithmic pipeline to automate and standardize meibomian gland absence assessment and interpretation.

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Computational models are complex scientific constructs that have become essential for us to better understand the world. Many models are valuable for peers within and beyond disciplinary boundaries. However, there are no widely agreed-upon standards for sharing models.

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Light, strong, and radiation-tolerant materials are essential for advanced nuclear systems and aerospace applications. However, the comprehensive properties of current radiation-tolerant materials are far from being satisfactory in harsh operating environments. In this study, a high-throughput-designed NbVTaSi refractory eutectic medium entropy alloy realizes the controllable formation of the β-NbSi phase with a high content and has outstanding comprehensive properties, i.

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Objectives: Neurocritically ill patients are at high risk for developing delirium, which can worsen the long-term outcomes of this vulnerable population. However, existing delirium assessment tools do not account for neurologic deficits that often interfere with conventional testing and are therefore unreliable in neurocritically ill patients. We aimed to determine the accuracy and predictive validity of the Fluctuating Mental Status Evaluation (FMSE), a novel delirium screening tool developed specifically for neurocritically ill patients.

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