128,580 results match your criteria: "Tennessee; and Ms. Shahid is from Georgetown University[Affiliation]"

Introduction: Unplanned, delayed readmissions (>30 ds) following oncologic surgeries can increase mortality and care costs and affect hospital quality indices. However, there is a dearth of literature on rectal cancer surgery. Hence, we aimed to assess the risk factors associated with delayed readmissions following rectal cancer surgery to improve targeted interventions, patient outcomes, and quality indices.

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A series of 2-pyridone[α]-fused BOPHYs - were prepared via a two-step procedure involving the preparation of enamine, followed by an intramolecular heterocyclization reaction. In addition to being fully conjugated with the BOPHY core pyridone fragment, BOPHYs and have a pyridine group connected to the BOPHY core via one- or two -CH- groups. New BOPHYs were characterized by spectroscopy as well as X-ray diffraction.

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Objective: Epilepsy is a common neurological disease affecting nearly 1% of the global population, and temporal lobe epilepsy (TLE) is the most common type. Patients experience recurrent seizures and chronic cognitive deficits that can impact their quality of life, ability to work, and independence. These cognitive deficits often extend beyond the temporal lobe and are not well understood.

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Perioperative Supportive Care Interventions to Enhance Surgical Outcomes for Older Adults With Cancer: A Systematic Review.

JCO Oncol Pract

January 2025

Section of Hematology & Oncology, Department of Medicine, University of Oklahoma Health Sciences Center, Stephenson Cancer Center, Oklahoma City, OK.

Purpose: Older adults with cancer have unique needs, which likely influence surgical outcomes in the geriatric oncology population. We conducted a systematic review to describe the literature focused on perioperative supportive care interventions for older adults with cancer undergoing surgery.

Methods: Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we performed a comprehensive search using the Ovid MEDLINE, CINAHL, and Embase databases for literature published from January 2010 to October 2023.

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Female Genital Mutilation (FGM) has become a global health concern. It is a deeply entrenched harmful practice involving partial or total removal of the external female genitalia for non-medical reasons. To inform effective policymaking and raise awareness about FGM's health risks, understanding socioeconomic and demographic factors influencing the timing of girls' circumcision is crucial.

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Native Mass Spectrometry (nMS) is a versatile technique for elucidating protein structure. Surface-Induced Dissociation (SID) is an activation method in tandem MS predominantly employed for determining protein complex stoichiometry alongside information about interface strengths. SID-nMS data can be collected over a range of acceleration energies, yielding Energy Resolved Mass Spectrometry (ERMS) data.

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Purpose: The integration of artificial intelligence (AI), particularly deep learning (DL), with optical coherence tomography (OCT) offers significant opportunities in the diagnosis and management of glaucoma. This article explores the application of various DL models in enhancing OCT capabilities and addresses the challenges associated with their clinical implementation.

Methods: A review of articles utilizing DL models was conducted, including convolutional neural networks (CNNs), recurrent neural networks (RNNs), generative adversarial networks (GANs), autoencoders, and large language models (LLMs).

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Background: Cognitive impairment and limited health literacy are prevalent among patients with heart failure, particularly those residing in rural areas, and are linked to poor health outcomes. Little is known about the intricate relationships among cognitive function, health literacy, and rehospitalization and death in rural patients with heart failure.

Objectives: To determine the relationships among cognitive function, health literacy, and cardiac event-free survival (ie, heart failure hospitalizations and cardiac mortality) in rural patients with heart failure.

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Between- and Within-Cluster Spearman Rank Correlations.

Stat Med

February 2025

Department of Biostatistics, Vanderbilt University, Nashville, Tennessee, USA.

Clustered data are common in practice. Clustering arises when subjects are measured repeatedly, or subjects are nested in groups (e.g.

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Ecosystem-scale primary production may be proximately limited by nitrogen (N) but ultimately limited by phosphorus (P) because N fixation contributes new N that accumulates relative to P at ecosystem scales. However, the duration needed to transition between proximate N limitation and ultimate P limitation remains unknown for most ecosystems, including lakes. Here we present the results of a fully replicated, multi-annual lake mesocosm experiment that permitted full air-water-sediment interactions that mimicked lake ecosystem ecology.

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Pollinators help maintain functional landscapes and are sensitive to floral nutritional quality. Both proteins and lipids influence pollinator foraging, but the role of individual biochemical components in pollen remains unclear. We conducted an experiment comprising common garden plots of six plant species (Asteraceae, Rosaceae, Onagraceae, Boraginaceae, and Plantaginaceae).

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Cases for a disease can be defined broadly using diagnostic codes, or narrowly using gold-standard confirmation that often is not available in large administrative datasets. These different definitions can have significant impacts on the results and conclusions of studies. We conducted this study to assess how using melanoma phecodes versus histologic confirmation for invasive or in situ melanoma impacts the results of a genome-wide association study (GWAS) using the Million Veteran Program.

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Buprenorphine is an opioid approved for medication-assisted treatment of opioid use disorder. Used off-label, buprenorphine has been reported to contribute to the clinical management of anxiety. Although human anxiety is a highly prevalent disorder, anxiety is a latent construct that cannot be directly measured.

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The Current Applications of Metabolomics in Understanding Endometriosis: A Systematic Review.

Metabolites

January 2025

Section on Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Tennessee College of Medicine, Chattanooga, TN 37403, USA.

Endometriosis is a common gynecological disease that affects approximately 10-15% of reproductive-aged women worldwide. This debilitating disease has a negative impact on the quality of life of those affected. Despite this condition being very common, the pathogenesis is not well understood.

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Lipophagy is a selective degradation of lipid droplets in lysosomes or vacuoles. Apart from its role in generating energy and free fatty acids for membrane repair, growth, and the formation of new membranes, lipophagy emerges as a key player in other cellular processes and disease pathogenesis. While fungal, plant, and algal cells use microlipophagy, the most prominent form of lipophagy in animal cells is macrolipophagy.

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Instability remains one of the most common indications for revision after total knee arthroplasty. To gain a better understanding of how an implant will perform in vivo and support surgeons in selecting the most appropriate implant design for an individual patient, it is crucial to evaluate the implant constraint within clinically relevant ligament and boundary conditions. Therefore, this study investigated the constraint of three different implant designs (symmetrical implants with and without a post-cam mechanism and an asymmetrical medial-stabilized implant) under anterior-posterior shear forces and internal-external rotation moments at different flexion angles in human cadaveric knees using a six-degrees-of-freedom joint motion simulator.

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Bovine respiratory disease (BRD) is one of the most common economic and health challenges to the beef cattle industry. Prophylactic use of antimicrobial drugs can alter the microbial communities in the respiratory tract. Considering that the bovine upper respiratory tract microbiome has been associated with generalized health, understanding the microenvironment that influences this microbiome may provide insights into the pathogenesis of BRD.

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Aulacorthum solani is a worldwide agricultural pest aphid capable of feeding on a wide range of host plants. This insect is a vector of plant viruses and causes injury to crops including stunted growth from the loss of phloem. We found that the publicly available genome for A.

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Potent HIV‑1 protease inhibitors containing oxabicyclo octanol-derived P2-ligands: Design, synthesis, and X‑ray structural studies of inhibitor-HIV-1 protease complexes.

Bioorg Med Chem Lett

January 2025

Department of Infectious Diseases, Kumamoto University School of Medicine, Kumamoto 860-8556, Japan; Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo 162-8655, Japan; Experimental Retrovirology Section, HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.

We describe here the design, synthesis, and X-ray structural studies of a new class of HIV-1 protease inhibitors containing 8-oxabicyclo[3.2.1]octanol-derived P2 ligands.

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Emotions & Heart:Exploring the Impact of Negative Emotions on Cardiovascular Health.

Curr Probl Cardiol

January 2025

Faculty of Health Sciences, School of Medicine, Queen's University, Kingston, Ontario, Canada; Division of Cardiology, Queen's University, Kingston, Ontario, Canada. Electronic address:

Negative emotions can have a significant impact on individuals, which then influences their cardiovascular system. However, the underlying pathophysiological mechanisms and clinical implications of this association remain inadequately defined. A narrative review of pertinent literature was conducted to examine the pathophysiology, clinical manifestations, and treatment related to the interplay between emotions and conditions such as takotsubo cardiomyopathy, atherosclerosis, acute plaque rupture, and cardiac arrhythmias.

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We present the theory, implementation, and benchmarking of a real-time time-dependent density functional theory (RT-TDDFT) module within the RMG code, designed to simulate the electronic response of molecular systems to external perturbations. Our method offers insights into nonequilibrium dynamics and excited states across a diverse range of systems, from small organic molecules to large metallic nanoparticles. Benchmarking results demonstrate excellent agreement with established TDDFT implementations and showcase the superior stability of our time integration algorithm, enabling long-term simulations with minimal energy drift.

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Plant nutrient concentrations inform white-tailed deer diet limitations.

J Environ Manage

January 2025

School of Natural Resources, University of Tennessee, 401 Agriculture and Natural Resources Bldg., Knoxville, TN, 37996, USA.

Management of large herbivores often involves increasing availability of forages sufficient in nutrient density to allow animals to meet dietary demands. Nutritional carrying capacity (NCC) models commonly are used to compare plant communities and management strategies, but failure to use the most limiting nutrient could result in overestimating NCC. Moreover, the relationship between limiting nutrients often is not considered, which may influence the utility of NCC models based on a single nutrient, especially when herbivores must simultaneously meet multiple constraints.

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High Entropy: A General Strategy for Broadening the Operating Temperature of Magnetic Refrigeration.

J Am Chem Soc

January 2025

Department of Physical Chemistry, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China.

Lattice distortion and disorder in the chemical environment of magnetic atoms within high-entropy compounds present intriguing issues in the modulation of magnetic functional compounds. However, the complexity inherent in high-entropy disordered systems has resulted in a relative scarcity of comprehensive investigations exploring the magnetic functional mechanisms of these alloys. Herein, we investigate the magnetocaloric effect (MCE) of the high-entropy intermetallic compound GdTbDyHoErCo.

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