5,022 results match your criteria: "All authors: University of Arkansas for Medical Sciences[Affiliation]"

Essential amino acid (EAA) supplementation, including conditionally essential amino acid (CEAA) and branched-chain amino acids (BCAA) supplementation, has been suggested as a mechanism to optimize patient outcomes by counteracting the atrophy associated with orthopedic procedures. We sought to investigate the effect of EAA supplementation in the perioperative period on patients undergoing orthopedic and spine surgery, specifically whether it is associated with (1) reductions in postoperative muscle atrophy and (2) improved postoperative function including range of motion, strength, and mobility. We conducted a systematic review of the literature.

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Changes in Physical Activity and Cardiovascular Disease Risk in Cancer Survivors: A Nationwide Cohort Study.

JACC CardioOncol

December 2024

Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University, Seoul, Republic of Korea.

Background: Cancer survivors face an elevated risk of cardiovascular disease, with physical inactivity after cancer treatment potentially worsening this risk.

Objectives: The aim of this study was to investigate the association between physical activity before and after a cancer diagnosis and the risk for heart disease.

Methods: A nationwide cohort of 269,943 cancer survivors (mean age 56.

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The COVID-19 pandemic led to significant shifts in societal norms and individual behaviors, including changes in physical activity levels. This study examines the relationship between socioeconomic and sociodemographic factors and changes in physical activity levels during the pandemic compared to pre-pandemic levels among adult Arkansans. Survey data were collected from 1,205 adult Arkansans in July and August 2020, capturing socioeconomic and sociodemographic characteristics and information on physical activity changes since the onset of the pandemic.

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Background: A decline in skeletal muscle mass and function known as skeletal muscle sarcopenia is an inevitable consequence of aging. Sarcopenia is a major cause of decreased muscle strength, physical frailty and increased muscle fatigability, contributing significantly to an increased risk of physical disability and functional dependence among the elderly. There remains a significant need for a novel therapy that can improve sarcopenia and related problems in aging.

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Pancreatic cancer is associated with high rates of morbidity and mortality. Endoscopic ultrasound (EUS)-guided biopsy has become the standard diagnostic modality per the guidelines. The use of EUS has been growing for providing various treatments in patients with pancreatic cancers: biliary and gallbladder drainage for those with malignant biliary obstruction, gastroenterostomy for malignant gastric outlet obstruction, celiac plexus/ganglia neurolysis for pain control, radiofrequency ablation, placement of fiducial markers, and injection of local chemotherapeutic agents.

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Hypertension: A Continuing Public Healthcare Issue.

Int J Mol Sci

December 2024

Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.

Hypertension is a cardiovascular disease defined by an elevated systemic blood pressure. This devastating disease afflicts 30-40% of the adult population worldwide. The disease burden for hypertension is great, and it greatly increases the risk of cardiovascular morbidity and mortality.

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A lipoblastoma is a benign tumor of adipocytes originating from embryonic white fat and occurs in the pediatric population. Congenital lipoblastomas, however, are rare, and the incidence of these tumors in neonates is unknown. Due to their rare presentation, congenital oral lipoblastomas can, firstly, pose diagnostic challenges for the pediatrician and must be differentiated from the more commonly seen oral lesions in the newborn and other rare malignant growths.

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Vaccine hesitancy is an attitude of indecision toward vaccination that is related to but not determinative of vaccination behaviors. Although theories of vaccine hesitancy emphasize it is often vaccine-specific, we do not know the extent to which this is true across sociodemographic groups. In this study, we asked: What latent classes of vaccine hesitancy might exist when examining parents' attitudes toward vaccines in general and COVID-19 and human papillomavirus (HPV) vaccination specifically? Which sociodemographic, health access, and health-related variables are predictive of membership in those classes? To answer those questions, we analyze online survey data from parents of pediatric patients recruited through eight clinics within the University of Arkansas for Medical Sciences Rural Research Network.

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This study characterizes a fluorescent -tdTomato neuronal reporter mouse line with strong labeling of axons throughout the optic nerve, of retinal ganglion cell (RGC) soma in the ganglion cell layer (GCL), and of RGC dendrites in the inner plexiform layer (IPL). The model facilitated assessment of RGC loss in models of degeneration and of RGC detection in mixed neural/glial cultures. The tdTomato signal showed strong overlap with >98% cells immunolabeled with RGC markers RBPMS or BRN3A, consistent with the ubiquitous presence of the vesicular glutamate transporter 2 (VGUT2, SLC17A6) in all RGC subtypes.

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Jacquet's erosive dermatitis (JED) is a severe irritant dermatitis characterized by erosive genital and perianal lesions, often misdiagnosed due to overlapping clinical features. This case report presents two adult cases of JED with distinct clinical and dermoscopic findings. Dermoscopy revealed a characteristic polymorphic vascular pattern, including short linear, curved, coiled, dotted, and globular vessels, aiding in the diagnosis and differentiation from similar conditions.

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Gammaherpesviruses are oncogenic pathogens that establish lifelong infections. There are no FDA-approved vaccines against Epstein-Barr virus or Kaposi sarcoma herpesvirus. Murine gammaherpesvirus-68 (MHV68) infection of mice provides a system for investigating gammaherpesvirus pathogenesis and testing vaccine strategies.

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Directional and Strain-Specific Interaction Between and .

Microorganisms

November 2024

Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR 72079, USA.

The interaction between and strains FRI-1169 and MN8, two original isolated strains from menstrual toxic shock syndrome (mTSS) cases, is a key focus for developing non-antibiotic strategies to control -related infections. While the antagonistic effects of species on through mechanisms like organic acid and bacteriocin production are known, the molecular dynamics of these interactions remain underexplored. This study employs a proteomic approach to analyze the interactions between WCFS1 and strains, FRI-1169 and MN8, during co-culture.

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Duloxetine, a Serotonin-Norepinephrine Reuptake Inhibitor (SNRI), is frequently used to treat diabetic peripheral neuropathy, depression, and fibromyalgia. However, its long-term cardiovascular implications in older individuals remain underexplored, particularly in those with pre-existing cardiovascular diseases. This medical record assessment aimed to evaluate the potential cardiovascular risks of duloxetine use in older persons after prolonged use.

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Reactive oxygen species (ROS) are double-edged swords in biological systems-they are essential for normal cellular functions but can cause damage when accumulated due to oxidative stress. Manganese superoxide dismutase (MnSOD), located in the mitochondrial matrix, is a key enzyme that neutralizes superoxide radicals (O), maintaining cellular redox balance and integrity. This review examines the development and therapeutic potential of MnSOD mimetics-synthetic compounds designed to replicate MnSOD's antioxidant activity.

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Background: Studies examining racial and ethnic disparities in-hospital mortality for patients hospitalized with COVID-19 had mixed results. Findings from patients within academic medical centers (AMCs) are lacking, but important given the role of AMCs in improving health equity.

Objective: The purpose of this study is to assess whether minority patients hospitalized with COVID-19 in National COVID Cohort Collaborative (N3C) institutions, which consist predominantly of AMCs, have higher mortality rates relative to White patients.

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Introduction: Clinicians are the conduits of high-quality care delivery. Clinicians have driven advancements in pharmacotherapeutics, devices, and related interventions and improved morbidity and mortality in patients with congestive heart failure over the past decade. Yet, the management of congestive heart failure has become extraordinarily complex and has fueled recommendations from the American Heart Association and the American College of Cardiology to optimize the composition of the care team to reduce the health, economic, and the health system burden of high lengths of stay and hospital charges.

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Coronavirus disease 2019 (COVID-19), caused by infection with the enveloped RNA betacoronavirus, SARS-CoV-2, led to a global pandemic involving over 7 million deaths. Macrophage inflammatory responses impact COVID-19 severity; however, it is unclear whether macrophages are infected by SARS-CoV-2. We sought to identify mechanisms regulating macrophage expression of ACE2, the primary receptor for SARS-CoV-2, and to determine if macrophages are susceptible to productive infection.

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Despite a varied selection of available trauma-focused evidence-based psychotherapies (TF-EBPs) for posttraumatic stress disorder (PTSD), few veterans receive a full course of an evidence-based treatment. A better understanding of and alignment with veterans' PTSD treatment goals could be one way to improve treatment engagement and adherence, consistent with veteran-oriented care within the U.S.

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Background: Prior case series suggest that a 5-day course of oral Paxlovid (nirmatrelvir/ritonavir) benefits some people with Long COVID, within and/or outside of the context of an acute reinfection. To the best of our knowledge, there have been no prior case series of people with Long COVID who have attempted longer courses of nirmatrelvir/ritonavir.

Methods: We documented a case series of 13 individuals with Long COVID who initiated extended courses (>5 days; range: 7.

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The coronavirus disease 2019 (COVID-19) pandemic had a significant effect on mortality rates worldwide, with Thailand being no exception. Gaining insights into the impact of pandemic-related mortality is essential for assessing its broader consequences on public health. This study aimed to analyze excess deaths during the pandemic (January 1, 2020-September 30, 2022) and post-pandemic period (October 2022-December 2023) at regional and national levels in Thailand.

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Despite promising preliminary biology, natural products isolation efforts may be confounded when the active compound is not isolated during bioassay-guided purification or classical pharmacognostic research investigations. A more rational isolation procedure connecting the polypharmacology of an herb to its individual constituents must be applied to better detect bioactive molecules before tedious analytical steps are considered. While (yohimbe) has been traditionally used in herbal medicine as a general tonic, an aphrodisiac, a performance enhancer, and an integral part of various dietary supplements, the hydroethanolic extract of yohimbe was identified to possess at least 3-4-fold induction of the pregnane X receptor (PXR) at 30 μg/mL, a key nuclear receptor implicated in adverse interactions, .

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Members of the genus including Jurona virus (JURV) have emerged as promising immunotherapeutic agents, characterized by their tumor selectivity, fast kinetics, low seroprevalence, and minimal toxicity in humans. Here, we demonstrate that the administration of JURV leads to tumor regression in both hepatocellular carcinoma (HCC) xenograft and syngeneic models. Furthermore, our findings indicate that combining JURV and anti-PD-1 therapy reduced tumor burden and improved survival rates over JURV or anti-PD-1 alone in an orthotopic HCC model.

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Introduction: The rarest form of renal ectopia, the thoracic kidney, has been documented in only about 200 cases worldwide. There are four recognized causes of congenital thoracic renal ectopia: renal ectopia with an intact diaphragm, diaphragmatic eventration, diaphragmatic hernia, and traumatic diaphragmatic rupture. This condition often presents as an incidental finding in asymptomatic patients.

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Chimeric antigen receptor T-cell (CAR-T) therapy has revolutionized the treatment of various hematological malignancies. Recently, CAR-T has been used in refractory auto-immune diseases with initial encouraging results. In this systematic review, we examined the safety and efficacy of CAR-T in patients with refractory auto-immune diseases.

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Article Synopsis
  • Advances in imaging techniques now allow for earlier and noninvasive diagnosis of hepatocellular carcinoma (HCC) in high-risk patients.
  • Up to 60% of HCC cases show typical imaging features, while 40% do not, creating challenges for radiologists due to diverse morphologic subtypes and their unique molecular characteristics.
  • The article focuses on unusual imaging presentations of HCC and discusses potential diagnostic pitfalls and conditions that may resemble HCC.
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