58,530 results match your criteria: "KY; and the University of Texas Medical Branch Dr. Mason[Affiliation]"

A unique inflammaging profile generated by T cells from people with obesity is metformin resistant.

Geroscience

December 2024

Department of Pharmacology & Nutritional Sciences, Diabetes and Obesity Research Priority Area, University of Kentucky, Lexington, KY, USA.

Article Synopsis
  • Obesity in older adults is prevalent and contributes to chronic inflammation, affecting the health of older populations.
  • Research suggests that obesity alters the immune response, particularly influencing T-cell function and the effectiveness of anti-inflammatory drugs like metformin.
  • Data reveal that metformin does not improve immune cell function in obese older adults as it does in lean individuals, indicating that obesity complicates the body's inflammatory response and must be considered in clinical studies of geroprotective treatments.
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Obacunone regulates ferroptosis in ovarian cancer through the Akt/p53 pathway.

Naunyn Schmiedebergs Arch Pharmacol

December 2024

Department of Obstetrics and Gynecology, Yantai Hospital of Traditional Chinese Medicine, No.39 Xingfu Road, Zhifu District, Yantai City, 264000, Shandong Province, China.

Ovarian cancer is characterized by a high rate of recurrence and a poor prognosis. Ferroptosis, a programmed cell death that is dependent on iron and lipid peroxidation, has emerged as a novel therapeutic target in recent years. This study investigated the effects of Obacunone, a naturally occurring compound present in citrus fruits, on the induction of ferroptosis in ovarian cancer via the Akt/p53 signaling pathway.

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During the COVID-19 pandemic, high-risk clients' and caregivers' access to essential personal protective equipment (PPE) was limited especially in many remote areas of Appalachia. A multidisciplinary team of community and university partners explored how to coordinate the use of community health workers (CHWs) and drone technologies to increase access to PPE in rural and remote Appalachian regions. CHWs recruited 10 Homeplace clients in an exploratory study of drone-based package delivery of PPE to assess importance and effectiveness of PPE self-efficacy related to PPE use, use of PPE, and ease and acceptability of drone delivery (following delivery only).

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The inherent heterogeneity of tumor cells impedes the development of targeted therapies for specific glioblastoma (GBM) subtypes. This study aims to investigate the mesenchymal subtype of GBM to uncover detailed characteristics, potential therapeutic strategies, and improve precision treatment for GBM patients. We integrated single-cell RNA sequencing (scRNA-seq), single-nucleus assay for transposase-accessible chromatin sequencing (snATAC-seq), and bulk RNA sequencing datasets to identify core gene modules, candidate therapeutic drugs, and key transcription factors specific to mesenchymal subtype GBM tumor cells which we validated in vitro and human samples.

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Hepatocellular carcinoma (HCC) is one of the most common malignant tumors, with the characteristics of high mortality and low 5-year survival rate. The potential role of BTF3 and PDCD2L in HCC remains unclear. Our study found that BTF3 expression was upregulated in hepatocellular carcinoma tissues, and its high expression was associated with poor prognosis.

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A decrease in the rate of reinforcement associated with one component of a multiple schedule is typically associated with a decrease in responding in that component as well as with an increase in responding in the unchanged component. This increase in responding, referred to as positive contrast, is thought to result from an increase in the subjective value associated with the unchanged component. Williams Animal Learning & Behavior, 19, 337-344, (1991) challenged this hypothesis in an experiment with pigeons in which Stimulus A, associated with a variable interval schedule, was always followed by Stimulus X, associated with extinction, while Stimulus B, associated with the same variable interval schedule, was always followed by Stimulus Y, also associated with a variable interval schedule.

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In recent years, targeting mitochondrial apoptosis has emerged as a promising therapeutic strategy for Acute Myeloid Leukemia (AML). The SLC25 family of mitochondrial carriers plays a critical role in maintaining mitochondrial function and regulating apoptosis. However, the role of SLC25A21, an oxodicarboxylate carrier, in AML progression and its potential as a prognostic biomarker remain underexplored.

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Objective: With robotic technology's rapid growth and integration, an urgent need to bridge the educational gap in thoracic surgical training has emerged. This document, a result of consensus among a group of experts in the practice and training of robotic surgery from the Society of Thoracic Surgeons (STS), aims to provide a framework for a standardized national robotic curriculum for thoracic surgery trainees.

Methods: The STS Task Force on Robotic Thoracic Surgery and Workforce on E-learning and Educational Innovation assembled an expert group with the input of the Thoracic Surgery Director's Association (TSDA).

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Evaluating post-cardiac arrest blood pressure thresholds associated with neurologic outcome in children: Insights from the pediRES-Q database.

Resuscitation

December 2024

Department of Pediatrics, Division of Critical Care Medicine, Kravis Children's Hospital, Icahn School of Medicine at Mount Sinai, 1184 5th Ave, New York, NY 10029, USA.

Background: Current Pediatric Advanced Life Support Guidelines recommend maintaining blood pressure (BP) above the 5th percentile for age following return of spontaneous circulation (ROSC) after cardiac arrest (CA). Emerging evidence suggests that targeting higher thresholds, such as the 10th or 25th percentiles, may improve neurologic outcomes. We aimed to evaluate the association between post-ROSC BP thresholds and neurologic outcome, hypothesizing that maintaining mean arterial pressure (MAP) and systolic blood pressure (SBP) above these thresholds would be associated with improved outcomes at hospital discharge.

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Article Synopsis
  • The study investigates how different reasons for revision surgery in adult spinal deformity (ASD) patients affect their postoperative outcomes, revealing a high incidence of reoperations.
  • A sample of 891 ASD patients was analyzed retrospectively, categorizing their revisions by cause, and assessing complications, radiographic results, and disability metrics.
  • Findings suggest that different etiologies (mechanical, infection, wound, and SI pain) lead to varying outcomes, with mechanical issues showing less improvement over time compared to others.
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Particulate hexavalent chromium inhibits global transcription of genes in DNA repair pathways, particularly targeting homologous recombination repair, base excision repair, mismatch repair and microhomology-mediated end-joining.

J Hazard Mater

December 2024

Wise Laboratory for Environmental and Genetic Toxicology, Department of Pharmacology and Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, United States. Electronic address:

Hexavalent chromium [Cr(VI)] is a human lung carcinogen with widespread exposure. How Cr(VI) causes cancer is poorly understood, but chromosome instability plays a central role. Inhibition of DNA repair pathways leads to chromosome instability; however, despite the importance of these pathways in the mechanism of Cr(VI)-induced lung carcinogenesis, there are no data considering in-depth analysis on the transcriptional changes of genes involved in them.

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Traumatic Brain Injury (TBI) remains a significant global health concern with significant impact on morbidity and mortality. This narrative review explores adjunctive pharmacologic agents to be employed by emergency medicine clinicians during Advanced Trauma Life Support (ATLS) in patients presenting with a TBI. Pharmacologic agents are commonly employed for the management of rapid sequence intubation and post-intubation analgosedation, hemodynamics, intracranial pressure, coagulopathy, seizure prophylaxis, and infection.

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Tuberculosis molecular bacterial load assay in the management of tuberculosis.

Curr Opin Infect Dis

December 2024

Division of Infection and Global Health, School of Medicine, University of St Andrews, St Andrews, KY, UK.

Purpose Of Review: Treatment monitoring remains a challenge in tuberculosis. The development of the tuberculosis molecular bacterial load assay (TB-MBLA) opens the possibility of real-time treatment monitoring. This review summarizes recent TB-MBLA research and outlines a future research agenda.

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Sanders, GJ, Skodinski, S, Cabarkapa, DV, Howard, M, Cabarkapa, D, Kollock, RO, and Peacock, CA. Countermovement jumps and acute to chronic workload ratios in low, moderate, and high jump load groups throughout a Division I volleyball season. J Strength Cond Res XX(X): 000-000, 2024-The purpose of the study was to evaluate the effects of low, moderate, and high jump loads on the acute to chronic workload ratio (ACWR) and neuromuscular fatigue throughout a Division I volleyball season.

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A review of ultraviolet filters and their impact on aquatic environments.

Photochem Photobiol Sci

December 2024

Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, MI, USA.

Numerous anthropogenic ultraviolet filters (UVF) have been detected in aquatic environments and concerns have arisen regarding their potential impacts on aquatic organisms. This manuscript reviews the environmental concentrations and potential toxicity of various UVF. The highest concentrations of UVF are typically observed near frequently visited recreational areas and during peak water-activity periods, which suggests that sunscreen application correlates with noticeable alterations in UVF concentrations.

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Repigmentation in non-segmental vitiligo using the Janus kinase inhibitor upadacitinib, a retrospective case series.

Arch Dermatol Res

December 2024

Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No.12 Jiangwangmiao, Xuanwu District, Nanjing, 210042, Jiangsu, China.

Vitiligo is the most frequently diagnosed depigmentation disease, affecting nearly 0.5-2% of individuals worldwide. This disorder is characterized by melanocyte loss, which results in skin and hair depigmentation.

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Pharmacoequity measurement framework: A tool to reduce health disparities.

J Manag Care Spec Pharm

December 2024

University of Florida, College of Pharmacy, Department of Pharmaceutical Outcomes and Policy, Gainesville, FL, and Journal of Managed Care & Specialty Pharmacy, Alexandria, VA.

is a health system and policy goal of ensuring equitable access to high-quality medications for all individuals, regardless of factors such as race, ethnicity, socioeconomic status, or resource availability to reduce health disparities. Although measurement frameworks have been widely used in health equity contexts, a focused framework for pharmacoequity remains a critical gap. In this article, we introduce a novel pharmacoequity measurement framework anchored in the patient medication-use journey.

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Article Synopsis
  • Current treatments for acute myeloid leukemia (AML) face challenges due to side effects and resistance issues.
  • This study explores the anticancer potential of extracts from the edible mushroom Cantharellus cibarius on the MV4-11 AML cell line.
  • A specific fraction, LH-20F-IV, demonstrated the highest inhibitory effect on the leukemia cells, indicating the mushroom may contain promising anticancer compounds.
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As the healthcare burden caused by an increasingly aging population rapidly rises, a pressing need exists for innovative geroscience research that can elucidate aging mechanisms and precipitate the development of therapeutic interventions to support healthy aging. The Fifth Annual Midwest Aging Consortium Aging Research symposium, held from April 28-30, 2024, was hosted by The Ohio State University in Columbus, Ohio and featured presentations from investigators across the Midwestern United States. This report summarizes the research presented at the symposium, whose topics included cellular senescence and the aging brain, metabolism and metabolic interventions, nutrition, redox mechanisms and biomarkers, and stress mechanisms.

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MYB family transcription factors (TFs) play crucial roles in plant development, metabolism, and responses to various stresses. However, whether MYB TFs are involved in regulating fatty acid biosynthesis in seeds remains largely elusive. Here, we demonstrated that transgenic Arabidopsis (Arabidopsis thaliana) plants overexpressing MYB73 exhibit altered FATTY ACID ELONGATION1 (FAE1) expression, seed oil content, and seed fatty acid composition.

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Left-handed G-quadruplexes (LHG4s) belong to a class of recently discovered noncanonical DNA structures under the larger umbrella of G-quadruplex DNAs (G4s). The biological relevance of these structures and their ability to be targeted with classical G4 ligands is underexplored. Here, we explore whether the putative LHG4 DNA sequence from the SLC2A1 oncogene promoter maintains its left-handed characteristics upon addition of nucleotides in the 5'- and 3'-direction from its genomic context.

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Purpose: This case series presents four cases of periprosthetic ulna fractures following Aptis distal radioulnar joint (DRUJ) arthroplasty to elucidate clinical characteristics, contributing factors, management challenges, and short-term outcomes following this rare complication and to propose prevention and optimal treatment strategies.

Methods: We conducted a retrospective review of 239 Aptis DRUJ prostheses implanted between 2012 and 2022 at a single institution. We identified four cases of periprosthetic ulna fractures and assessed demographics, surgical indications, time to fracture, mechanism of injury, radiographic findings, treatment modalities, associated complications, and outcomes.

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Purpose: The Evidence-Based Practice Committee of the American Society for Surgery of the Hand set out to assess the membership's practice patterns (PPs) and familiarity with evidence-based principles for scaphoid fracture and nonunion management.

Methods: Using a consensus-generated 25-item online survey, all the American Society for Surgery of the Hand members were invited to participate via email in September 2023. Two question types were used including evidence-based practice (EBP) and PPs.

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Purpose: Electrodiagnostic (EDX) testing is commonly used in conjunction with symptoms and physical examination findings to diagnose cubital tunnel syndrome (CuTS). The purpose of this study was to investigate the relationship between preoperative EDX diagnosis and the degree of Disabilities of the Arm, Shoulder, and Hand (DASH) improvement after surgery within the CuTS patient population.

Methods: A retrospective review was designed to analyze patients from a single institution who underwent a cubital tunnel release.

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Objectives: Proximal median nerve (PMN) neuropathies are caused by lesions proximal to the carpal tunnel, which include the forearm, elbow, upper arm, and brachial plexus. Differentiating between carpal tunnel syndrome and PMN neuropathies is important to guide management and is based on clinical, electrodiagnostic (EDX), and ultrasound (US) findings. This study describes the clinical, EDX, and US features in 62 patients with PMNs.

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