4,821 results match your criteria: "Oklahoma Medical Research Foundation; US Department of Veterans Affairs Medical Center[Affiliation]"

Canagliflozin treatment prevents follicular exhaustion and attenuates hallmarks of ovarian aging in genetically heterogenous mice.

Geroscience

December 2024

Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, 825 NE 13 Street, Chapman E306, Oklahoma City, OK, 73104, USA.

Ovarian aging is characterized by declines in follicular reserve and the emergence of mitochondrial dysfunction, reactive oxygen species production, inflammation, and fibrosis, which eventually results in menopause. Menopause is associated with increased systemic aging and the development of numerous comorbidities; therefore, the attenuation of ovarian aging could also delay systemic aging processes in women. Recent work has established that the anti-diabetic drug Canagliflozin (Cana), a sodium-glucose transporter 2 inhibitor, elicits benefits on aging-related outcomes, likely through the modulation of nutrient-sensing pathways and metabolic homeostasis.

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Physiological significance of antithrombin D-helix interaction with vascular GAGs.

Blood Adv

December 2024

Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States.

Antithrombin (AT) is an anticoagulant serpin involved in the regulation of proteolytic activities of coagulation proteases. AT also possesses a direct anti-inflammatory function. The anticoagulant function of AT is mediated through its reactive-center loop (RCL)-dependent inhibition of coagulation proteases, but anti-inflammatory function of AT is mediated via its D-helix-dependent interaction with vascular glycosaminoglycans (GAGs).

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Intercellular synergy between protease-activated receptors 1 and 4 during mouse development.

J Thromb Haemost

December 2024

Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA; Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. Electronic address:

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Background: Proximal vessel tortuosity can hinder wiring and equipment delivery during chronic total occlusion (CTO) percutaneous coronary intervention (PCI).

Aims: We sought to examine the association of proximal vessel tortuosity with the short and long-term outcomes of patients undergoing CTO PCI.

Methods: We examined the association of proximal vessel tortuosity with clinical outcomes in patients who underwent CTO PCI at 50 US and non-US centers between 2012 and 2024.

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Objective: Sjögren's Disease (SjD) subjects have decreased lacrimal/salivary gland function. Studies have proposed that autoantibodies targeting G-protein-coupled muscarinic acetylcholine-type-3-receptor (M3R) are potential clinical markers for SjD. We hypothesized that rabbits/mice immunized with 4-hydroxy-2-nonenal (HNE)-modified/unmodified Ro60 will develop an autoimmunity, specifically a SjD phenotype, thus expressing increased levels of anti-M3R antibodies.

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Article Synopsis
  • Migratory birds like the Gambel's white-crowned sparrow rely heavily on mitochondria for energy during their intense migration periods, which is energetically demanding.
  • In a study comparing Gambel's sparrows with non-migratory Nuttall's sparrows, it was found that the migratory birds showed significantly more mitochondrial remodelling in their muscles across different stages of migration.
  • The research indicates that this remodelling is particularly evident in the pectoralis muscle, which is crucial for flight, demonstrating an adaptive response that helps migratory birds meet their increased energy requirements.
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Peptidoglycans (PGNs) are structural polymers of the bacterial cell wall and a common microbial molecular pattern encountered by our immune system daily. Low levels of PGNs are constitutively present in the systemic circulation in humans and elevate during inflammatory pathologies. Since all known PGN sensors are intracellular, PGN internalization is a prerequisite for the initiation of cellular immune responses.

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Translational research needs to show value through impact on measures that matter to the public, including health and societal benefits. To this end, the Translational Science Benefits Model (TSBM) identified four categories of impact: Clinical, Community, Economic, and Policy. However, TSBM offers limited guidance on how these areas of impact relate to equity.

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SCAI Expert Consensus Statement on the Management of Patients With STEMI Referred for Primary PCI.

J Soc Cardiovasc Angiogr Interv

November 2024

Minneapolis Heart Institute, Abbott Northwestern Hospital, and Center for Coronary Artery Disease, Minneapolis Heart Institute Foundation, Minneapolis, Minnesota.

ST-elevation myocardial infarction (STEMI) remains a leading cause of morbidity and mortality in the United States. Timely reperfusion with primary percutaneous coronary intervention is associated with improved outcomes. The Society for Cardiovascular Angiography & Interventions puts forth this expert consensus document regarding best practices for cardiac catheterization laboratory team readiness, arterial access with an algorithm to help determine proper arterial access in STEMI, and diagnostic angiography.

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The first use of "lupus" as a disease.

Lupus

January 2025

Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.

Objectives: Describe the history of the use of the term "lupus" as a disease and to point out the inaccuracies of previous lupus historical articles and correct the historical record.

Methods: An exhaustive review of Medieval and later texts regarding the use of the term "lupus" as it was used for the name of a disease as well as personal communications with Medieval experts who have studied this topic.

Results: There are three possible first uses of "lupus" as a disease: an affidavit written in 963 AD by Eraclius (Bishop of Liège, Belgium), in a 12th century historical account of the Bishop of Liège, falsely ascribed to the 9th century Bishop Herbernus, or in an 1170 AD letter written by Pierre de Blois about the death of archbishop Stephan du Perche.

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Article Synopsis
  • The text discusses the importance of forecasting future health issues in the USA for effective planning and public awareness regarding disease and injury burdens.
  • It describes the methodology for predicting life expectancy, cause-specific mortality, and disability-adjusted life-years (DALYs) from 2022 to 2050 using the Global Burden of Diseases framework.
  • The forecasting includes various scenarios to assess the potential impacts of health risks and improvements across the country, focusing on demographic trends and health-related risk factors.
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Background: The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 provides a comprehensive assessment of health and risk factor trends at global, regional, national, and subnational levels. This study aims to examine the burden of diseases, injuries, and risk factors in the USA and highlight the disparities in health outcomes across different states.

Methods: GBD 2021 analysed trends in mortality, morbidity, and disability for 371 diseases and injuries and 88 risk factors in the USA between 1990 and 2021.

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Clinical trial screening in gynecologic oncology: Defining the need and identifying best practices.

Gynecol Oncol

December 2024

Baystate Medical Center, Division of Gynecologic Oncology, University of Massachusetts Chan Medical School, Springfield, MA, United States of America.

Background: Evidence is limited in gynecologic cancers on best practices for clinical trial screening, but the risk of ineffective screening processes and subsequent under-enrollment introduces significant cost to patient, healthcare systems, and scientific advancement. Absence of a defined screening process makes determination of who and when to screen potential patients inconsistent allowing inefficiency and potential introduction of biases. This is especially germane as generative artificial intelligence (AI), and electronic health record (EHR) integration is applied to trial screening.

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Visual processing involves numerous neuro-ophthalmic pathways that enable humans to perceive and interact with the world. These visual pathways can negatively impact visual perception and decision-making. The Vestibulo-Ocular Reflex (VOR) is a compensatory mechanism that stabilizes gaze on a target during head movement, such as running or turning.

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Objective: We aim to evaluate the quality of patient-reported outcomes included in randomized control trials for the treatment of congestive heart failure using the International Society for Quality of Life Research (ISOQOL) checklist, a validated tool for critically appraising the quality of patient-reported outcomes.

Design: We performed a cross-sectional analysis of 65 randomized control trials with patient-reported outcomes for drug intervention trials for treating congestive heart failure.

Setting: N/A.

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Sexually dimorphic metabolic effects of a high fat diet on knee osteoarthritis in mice.

Biol Sex Differ

December 2024

Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA.

Background: Women have a higher risk of developing osteoarthritis (OA) than men, including with obesity. To better understand this disparity, we investigated sex differences in metabolic and inflammatory factors associated with OA using a diet-induced mouse model of obesity. We hypothesized that 20 weeks of high-fat diet (HFD) would induce sexually dimorphic changes in both systemic and local risk factors of knee OA.

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The nitrone compound OKN-007 delays motor neuron loss and disease progression in the G93A mouse model of amyotrophic lateral sclerosis.

Front Neurosci

November 2024

Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States.

Our study investigated the therapeutic potential of OKN-007 in the SOD1 G93A mouse model of amyotrophic lateral sclerosis (ALS). The impact of OKN-007, known for its antioxidant, anti-inflammatory, and neuroprotective properties, was tested at two doses (150 mg/kg and 300 mg/kg) at onset and late-stage disease. Results demonstrated a significant delay in disease progression at both doses, with treated mice showing a slower advance to early disease stages compared to untreated controls.

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Background: Sexual orientation discrimination increases the risks of negative health outcomes for sexual minorities. Previous studies have found increased rates of eating disorder symptoms in sexual minority individuals, which is attributable to minority stress and discrimination that they experience. Emerging research suggests relationships between sexual orientation discrimination and eating disorder symptoms.

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Reactive oxygen species in the pathogenesis of sarcopenia.

Free Radic Biol Med

November 2024

Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, United States; Oklahoma City VA Medical Center, Oklahoma City, OK, 73104, United States. Electronic address:

One of the most critical factors impacting healthspan in the elderly is the loss of muscle mass and function, clinically referred to as sarcopenia. Muscle atrophy and weakness lead to loss of mobility, increased risk of injury, metabolic changes and loss of independence. Thus, defining the underlying mechanisms of sarcopenia is imperative to enable the development of effective interventions to preserve muscle function and quality in the elderly and improve healthspan.

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Article Synopsis
  • Endurance exercise training (ExT) leads to significant changes in lipid composition across various tissues, highlighting the need for a deeper understanding of these alterations.
  • In a study involving Fischer-344 rats, it was found that both male and female rats show distinct lipid remodeling in tissues like the heart, liver, and skeletal muscle after different durations of ExT.
  • Exercise resulted in lower body fat and better cardiorespiratory fitness, with important changes in types of lipids (like phospholipids and ceramides) that could help explain how exercise benefits overall health.
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Article Synopsis
  • Chronic viral infections can reactivate during acute illnesses, and this study looked at how SARS-CoV-2 infection affects latent viruses like Epstein-Barr Virus (EBV) and cytomegalovirus (CMV) in over 1,154 hospitalized COVID-19 patients.* -
  • The analysis showed significant reactivation of multiple virus families during the acute stage of COVID-19, which correlated with disease severity, demographics, and clinical outcomes, including higher mortality rates.* -
  • Additionally, persistent viral reactivation after recovery was linked to ongoing symptoms of Post-Acute Sequelae of COVID-19 (PASC), emphasizing the importance of understanding these interactions for better treatment and management strategies.*
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Article Synopsis
  • The Semmelweis Study in Hungary aims to address the public health challenges of unhealthy aging in the EU by examining the factors that contribute to age-related diseases, particularly vascular cognitive impairment (VCI).
  • The pilot study involved 49 participants aged 23 to 87, assessing cognitive performance and vascular health through various advanced imaging techniques and tests.
  • The analysis showed a correlation between vascular health indices, age, and cognitive performance, suggesting that a better understanding of this relationship could lead to new insights on healthy aging.
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Purpose: A health disparity refers to a greater disease burden or negative health outcomes influenced by social, economic, and environmental factors. Numerous studies in the surgical literature show that social drivers of health affect health outcomes. Similar disparities may affect treatment and outcomes of spine deformity patients.

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