28,865 results match your criteria: "University of Oklahoma.[Affiliation]"

Impact of Perceived Discrimination and Pandemic Attitudes on Cancer Screening Behaviors Among Asian American Women: A Sequential Explanatory Mixed-Methods Study.

J Am Coll Radiol

December 2024

Vice Chair for Radiology, Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts; Co-Chair, RSNA Health Equity Committee; Associate Editor, Journal of the American College of Radiology.

Purpose: The aim of this study was to assess how pandemic-related health concerns and discrimination affected cancer screenings among Asian American women (AAW).

Methods: A two-phase explanatory mixed-methods study was conducted. In phase 1, a survey was distributed among AAW eligible for lung, breast, or colorectal cancer screening to assess delays during the pandemic, concerns about contracting coronavirus disease 2019 (COVID-19), barriers to care, and experiences of discrimination.

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Autonomous vehicles (AVs) offer significant potential to improve safety, reduce emissions, and increase comfort, drawing substantial attention from both research and industry. A critical challenge in achieving SAE Level 5 autonomy, full automation, is path planning. Ongoing efforts in academia and industry are focused on optimizing AV path planning, reducing computational complexity, and enhancing safety.

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Mild cognitive impairment (MCI) affects nearly 20% of older adults worldwide, with no targetable interventions for prevention. COVID-19 adversely affects cognition, with >70% of older adults with Long COVID presenting with cognitive complaints. Neurovascular coupling (NVC), an essential mechanism of cognitive function, declines with aging and is further attenuated in neurocognitive disorders.

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Objective: The aim of this study was to systematically review the existing individual patient data in the literature on adult cerebellopontine angle (CPA) medulloblastoma (MB) and characterize the patient presentation, management strategies used, and oncological outcomes of this rare entity to guide future clinical practice.

Methods: Following PRISMA guidelines, a systematic review was conducted by searching PubMed, EMBASE, Web of Science, and Cochrane databases from inception to 19 June 2024. Studies regarding adult patients with histologically confirmed MB radiographically confirmed to be located in the CPA were included.

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Polyphenols, plant-derived secondary metabolites, play crucial roles in plant stress responses, growth regulation, and environmental interactions. In humans, polyphenols are associated with various health benefits, particularly in cardiometabolic health. Despite growing evidence of polyphenols' health-promoting effects, their mechanisms remain poorly understood due to high interindividual variability in bioavailability and metabolism.

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Objective: Therapeutic interventions for epithelial ovarian cancer (EOC) have increased greatly over the last decade but improvements outside of biomarker selected therapies have been limited. There remains a pressing need for more effective treatment options that can prolong survival and enhance the quality of life of patients with EOC. In contrast to the significant benefits of immunotherapy with immune checkpoint inhibitors (CPI) seen in many solid tumors, initial experience in EOC suggests limited efficacy of CPIs monotherapy.

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Background: Smoking prevalence among U.S. adults experiencing homelessness is ≥70 %.

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Background: Lung cancer screening recommendations employ annual frequency for eligible individuals, despite evidence that it may not be universally optimal. The impact of imposing a structure on the screening frequency remains unknown. The ENGAGE framework, a validated framework that offers fully dynamic, analytically optimal, personalised lung cancer screening recommendations, could be used to assess the impact of screening structure on the effectiveness and efficiency of lung cancer screening.

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Mechanistic studies of PFKFB2 reveals a novel inhibitor of its kinase activity.

bioRxiv

December 2024

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

The 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase (PFKFB) family of proteins are bifunctional enzymes that are of clinical relevance because of their roles in regulating glycolysis in insulin sensitive tissues and cancer. Here, we sought to express recombinant PFKFB2 and develop a robust protocol to measure its kinase activity. These studies resulted in the unexpected finding that bacterially expressed PFKFB2 is phosphorylated on Ser483 but is not a result of autophosphorylation.

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Transcranial magnetic stimulation (TMS) over the left dorsolateral prefrontal cortex (L-DLPFC) is an established intervention for treatment-resistant depression (TRD), yet the underlying therapeutic mechanisms remain not fully understood. This study employs an integrative approach that combines TMS with concurrent functional magnetic resonance imaging (fMRI) and electroencephalography (EEG), aimed at assessing the acute/immediate effects of TMS on brain network dynamics and their correlation with clinical outcomes. Our study demonstrates that TMS acutely modulates connectivity within vital brain circuits, particularly the cognitive control and default mode networks.

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The American Transplant Congress (ATC) 2024, held in Philadelphia, serves as a vital platform for unveiling new research and clinical experience in organ machine perfusion-a key area in organ transplantation. This year's congress gathered 4652 participants from 49 countries, including top experts, to spotlight innovations in machine perfusion across various organ types, such as the liver, kidney, heart, and lung. A total of 87 abstracts on organ machine perfusion were presented.

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Effective targeting of somatic cancer mutations to enhance the efficacy of cancer immunotherapy requires an individualized approach. Autogene cevumeran is a uridine messenger RNA lipoplex-based individualized neoantigen-specific immunotherapy designed from tumor-specific somatic mutation data obtained from tumor tissue of each individual patient to stimulate T cell responses against up to 20 neoantigens. This ongoing phase 1 study evaluated autogene cevumeran as monotherapy (n = 30) and in combination with atezolizumab (n = 183) in pretreated patients with advanced solid tumors.

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Trends in use of tobacco and cannabis across different alcohol consumption levels in the United States, 2010-19.

Alcohol Alcohol

November 2024

Center for Value-Based Care Research, Cleveland Clinic, 9500 Euclid Ave, Mail Code G10, Cleveland, OH 44195.

Aims: People often drink alcohol and use other substances concurrently, increasing the risk of adverse health outcomes. Our aims were to: (i) assess temporal trends in tobacco and/or cannabis use by varying alcohol consumption levels and (ii) identify associated factors of polysubstance use in high-risk alcohol users.

Methods: We conducted a repeated cross-sectional study combining 2010-19 U.

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Revolutionizing Methane Transformation with the Dual Production of Aromatics and Electricity in a Protonic Ceramic Electrocatalytic Membrane Reactor.

ACS Appl Mater Interfaces

January 2025

Department of Hydrogen and Electrochemistry, Idaho National Laboratory, Idaho Falls, ID 83415, United States.

Article Synopsis
  • Using a protonic ceramic electrocatalytic membrane reactor, methane is converted into higher-value chemicals like benzene with high efficiency and minimal emissions.
  • The system achieved a 15.6% methane conversion rate and an 11.4% benzene yield, which outperform traditional thermochemical methods by 15.7% and 16.0%, respectively.
  • The reactor also effectively removes hydrogen, maintaining stable operation for 45 hours and allowing for catalyst regeneration, presenting a promising solution for reducing carbon impact in chemical processing.
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Background: Prognostication of atypical spindle cell neoplasms, including atypical fibroxanthoma (AFX) and pleomorphic dermal sarcoma (PDS), is challenging; outcomes vary widely, and further identification of prognostic features is crucial.

Objective: To evaluate prognostic factors that may portend worse outcomes in patients with AFX and PDS.

Materials And Methods: A retrospective chart review of patients with AFX and PDS was conducted.

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Article Synopsis
  • Small extracellular vesicles (sEVs) in pancreatic ductal adenocarcinoma (PDAC) carry specific miRNAs that influence cancer progression, but the reasons for their selective enrichment are not fully understood.
  • The study focuses on Serine/Arginine-rich splicing factor 1 (SRSF1), an onco-protein overexpressed in PDAC, and how modifications like phosphorylation and arginine methylation affect sEV miRNA levels.
  • Treatment with arginine methyltransferase inhibitors increased levels of the specific miRNA miR-1246 in PDAC cells, suggesting that arginine methylation reduces SRSF1's ability to bind this miRNA and enrich it in sEVs,
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Article Synopsis
  • The study compared Fitzpatrick Skin Type reporting accuracy among providers, trainees, and patients, highlighting discrepancies among these groups.
  • The findings showed that providers were more accurate in assessing Fitzpatrick Skin Types than patients, with patient race influencing the mismatch in self-estimation.
  • The research suggests the need to reevaluate the Fitzpatrick classification system and improve education for dermatology trainees to reduce misclassification of skin types.
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We revisit the naked transition metal cation (Ti) and methanol reaction and go beyond the standard Landau-Zener (LZ) picture when modeling the intersystem crossing (ISC) rate between the lowest doublet and quartet states. We use both (i) unconstrained Born-Oppenheimer molecular dynamics (BOMD) calculations with an approximate two-state method to estimate population transfer between spin diabats and (ii) constrained dynamics to explore energetically accessible portions of the - 1 crossing seam, where is the total number of internal degrees of freedom. Whereas previous LZ calculations (that necessarily relied on the Condon approximation to be valid) fell short and predicted much slower crossing probabilities than shown in experiment, we show that ISC can occur rapidly because the spin-orbit coupling (SOC) between the doublet and quartet surfaces can vary by 2 orders of magnitude (depending on where in the seam the crossing occurs during dynamics) and the crossing region is revisited multiple times during a dynamics run of a few hundred femtoseconds.

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FLT3 inhibitors induce p53 instability, driven by STAT5/MDM2/p53 competitive interactions in acute myeloid leukemia.

Cancer Lett

January 2025

Pediatric Hematology Laboratory, Division of Hematology/Oncology, Department of Pediatrics, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China. Electronic address:

Article Synopsis
  • FLT3 mutations are common in AML, making them a key target for therapy, but resistance to FLT3 inhibitors is a significant challenge.
  • Tyrosine kinase inhibitors (TKIs) promote p53 degradation in FLT3-ITD AML cells through mechanisms involving STAT5 and MDM2, disrupting p53's role as a tumor suppressor.
  • Using MDM2 inhibitors alongside TKIs can stabilize p53 levels, enhancing the effectiveness of treatments and suggesting a promising combination approach for AML therapy.
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Lung neuroendocrine neoplasms are a group of diverse, heterogeneous tumours that range from well-differentiated, low-grade neuroendocrine tumours-such as typical and atypical carcinoids-to high-grade, poorly differentiated aggressive malignancies, such as large-cell neuroendocrine carcinoma (LCNEC) and small-cell lung cancer (SCLC). While the incidence of SCLC has decreased, the worldwide incidence of other pulmonary neuroendocrine neoplasms has been increasing over the past decades. In addition to the standard histopathological classification of lung neuroendocrine neoplasms, the introduction of molecular and sequencing techniques has led to new advances in understanding the biology of these diseases and might influence future classifications and staging that can subsequently improve management guidelines in the adjuvant or metastatic settings.

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Associations between cannabis use and same-day health and substance use behaviors.

Addict Behav

December 2024

TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences, Oklahoma City, OK, United States; Department of Family and Preventive Medicine, University of Oklahoma Health Sciences, Oklahoma City, OK, United States. Electronic address:

Objective: Cannabis use has increased in the United States as states have legalized/decriminalized recreational and/or medicinal use. The primary aim of this study was to examine daily associations between cannabis use and health (physical activity [PA]) and substance use (alcohol consumption, cigarette use) behaviors.

Method: Data from a 28-day nationwide study that prompted daily ecological momentary assessments (EMAs) were used to assess daily cannabis use, moderate-to-vigorous PA (MVPA), alcohol containing drinks consumed, and cigarettes smoked.

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Land use change threatens global biodiversity and compromises ecosystem functions, including pollination and food production. Reduced taxonomic α-diversity is often reported under land use change, yet the impacts could be different at larger spatial scales (i.e.

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Aging remains the foremost risk factor for cardiovascular and cerebrovascular diseases, surpassing traditional factors in epidemiological significance. This review elucidates the cellular and molecular mechanisms underlying vascular aging, with an emphasis on sex differences that influence disease progression and clinical outcomes in older adults. We discuss the convergence of aging processes at the macro- and microvascular levels and their contributions to the pathogenesis of vascular diseases.

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