2,657 results match your criteria: "St Louis University School of Medicine[Affiliation]"

Background And Aims: Interest in cold endoscopic mucosal resection (EMR) for colorectal polyps has been growing lately. We conducted a meta-analysis of RCTs to compare cold and hot EMR for colorectal polyps.

Methods: We reviewed several databases from inception to October 06, 2024.

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Background And Aims: Fully covered self-expandable metallic stents (FCSEMS) are often used in the management of post-sphincterotomy bleeding which is refractory to conventional endoscopic treatments. In this meta-analysis, we have evaluated the efficacy and safety of FCSEMS in the management of post-sphincterotomy bleeding.

Methods: We reviewed several databases from inception to November 6, 2024 to identify studies that evaluated the efficacy, and/or safety of FCSEMS in the management of post sphincterotomy bleeding.

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Background: The relationship between the extent and severity of stress-induced ischemia and the extent and severity of anatomic coronary artery disease (CAD) in patients with obstructive CAD is multifactorial and includes the intensity of stress achieved, type of testing used, presence and extent of prior infarction, collateral blood flow, plaque characteristics, microvascular disease, coronary vasomotor tone, and genetic factors. Among chronic coronary disease participants with site-determined moderate or severe ischemia, we investigated associations between ischemia severity on stress testing and the extent of CAD on coronary computed tomography angiography.

Methods: Clinically indicated stress testing included nuclear imaging, echocardiography, cardiac magnetic resonance imaging, or nonimaging exercise tolerance test.

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Importance: Outcomes after hypoxic-ischemic encephalopathy (HIE) are variable. Predicting death or severe neurodevelopmental impairment (NDI) in affected neonates is crucial for guiding management and parent communication.

Objective: To predict death or severe NDI in neonates who receive hypothermia for HIE.

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Article Synopsis
  • Dual antiplatelet therapy (DAPT) combined with proton pump inhibitors (PPI) can significantly reduce the risk of upper gastrointestinal bleeding (UGIB) in patients with acute coronary syndrome (ACS) compared to DAPT alone.
  • A meta-analysis of seven randomized controlled trials involving 6708 patients showed a marked decrease in UGIB rates and all-cause mortality when PPI was added, with no negative impact on major cardiovascular events.
  • Specifically, the PPI + DAPT group had a risk ratio of 0.39 for UGIB and 0.46 for mortality, indicating substantial benefits from this combination treatment.
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We previously reported -hydroxypyridinedione (HPD) compounds with mid-nanomolar efficacy and selectivity indexes around 300 against hepatitis B virus (HBV) replication. However, they lack pharmacological evaluation. Here, we report anti-HBV efficacy, cytotoxicity, and pharmacological characterization of 29 novel HPDs within seven subgroups.

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Glioblastomas (GBMs) are dreadful brain tumors with abysmal survival outcomes. GBM extracellular vesicles (EVs) dramatically affect normal brain cells (largely astrocytes) constituting the tumor microenvironment (TME). We asked if EVs from different GBM patient-derived spheroid lines would differentially alter recipient brain cell phenotypes.

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Haploidentical hematopoietic cell transplantation (haplo-HCT) is an increasingly used treatment for hematologic malignancies. Although post-transplant cyclophosphamide (PtCy) has improved graft vs. host disease (GvHD) prophylaxis in haplo-HCT, patients continue to experience life-threatening complications.

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Article Synopsis
  • - Homologous recombination (HR) repairs double-stranded DNA breaks (DSBs) by converting them into single-stranded DNA (ssDNA) coated with Replication Protein A (RPA), but the binding of Rad51, a key protein in this process, is competitively inhibited by RPA.
  • - Mediator proteins like Rad52 and BRCA2 enhance Rad51's binding to RPA-coated ssDNA, with Rad52 having two distinct binding modes for Rad51: one that sorts Rad51 into monomers and another located on Rad52’s N-terminal region.
  • - Through advanced microscopy and optical tweezer techniques, the study shows that while Rad52 facilitates Rad51 loading onto ssDNA, it does
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Should baseline/routine ECG monitoring be performed for patients on buprenorphine-containing medications?

J Opioid Manag

January 2024

Southern Illinois University Edwardsville School of Pharmacy, Edwardsville, Illinois; Clinical Associate Professor, Department of Community and Family Medicine, St. Louis University School of Medicine, St. Louis, Missouri.

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Article Synopsis
  • * Experts in the field gathered to discuss and improve the language surrounding this disease to make it less intimidating.
  • * The goal is to establish a clearer and more accurate way to define the nomenclature related to advanced prostate cancer for better patient understanding.
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  • The Measure Up 1, 2, and AD Up studies assessed the effectiveness and side effects of upadacitinib for treating atopic dermatitis in adolescents aged 12-17 over a period of 76 weeks, extending the research beyond the previously available 52-week data.
  • In a randomized clinical trial, participants received either upadacitinib (15 mg or 30 mg) or a placebo, with some receiving topical corticosteroids, allowing for varied analysis of its efficacy and safety.
  • Results showed that a significant percentage of adolescents achieved a major improvement in their condition, with 89.1%, 84.4%, and 87.8% meeting the criteria for reduction in severity, showcasing the medication
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  • The study aimed to determine how different durations of intraoperative radiofrequency ablation affect the health and characteristics of bursal cells collected during rotator cuff surgery in patients.
  • Six healthy patients participated, and bursal tissue was subjected to varying levels of ablation to assess cell viability, growth potential, and phenotypes.
  • Findings showed that longer ablation times led to reduced viability of the cells, but the overall characteristics of the cells remained consistent across different treatment groups, indicating that while ablation affects cell survival, it does not significantly alter cell properties.
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Background: Professional guidelines recommend molecular profiling for mismatch repair (MMR), p53, and polymerase epsilon (POLE) status in endometrial cancer (EC). However, adoption in the United States has not been documented, and barriers to the implementation of testing have not been described.

Methods: In this mixed-methods study, implementation science frameworks were used to develop a quantitative survey.

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To provide example cases within the peer-reviewed literature of a phenomenon related to certain gunshot wounds of the head where the bullet pathway courses along the inner table of the skull. Presentation of two cases discovered at medicolegal autopsy. The two cases provide radiologic and autopsy demonstration of bullet pathways within the head where the projectiles track along the inner aspect of the cranium, in a circumferential manner, such that the bullets are recovered in a location on the opposite side of the brain/head, with no projectile pathway within the intervening deep structures of the brain.

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  • TC-325 powder has shown effective results in managing upper gastrointestinal bleeding (UGIB) related to malignancies compared to standard treatments, as indicated by a meta-analysis of randomized controlled trials.
  • The study analyzed data from four RCTs involving 227 patients, revealing that TC-325 significantly improved immediate hemostasis rates without affecting other important outcomes like rebleeding, surgery needs, or mortality.
  • The conclusion emphasizes that TC-325 is a superior option for achieving immediate control of bleeding in malignancy-related UGIB.
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Background: The optimal hemoglobin threshold to guide red blood cell (RBC) transfusion for patients with acute myocardial infarction (MI) and anemia is uncertain.

Objective: To estimate the efficacy of 4 individual hemoglobin thresholds (<10 g/dL [<100 g/L], <9 g/dL [<90 g/L], <8 g/dL [<80 g/L], and <7 g/dL [<70 g/L]) to guide transfusion in patients with acute MI and anemia.

Design: Prespecified secondary analysis of the MINT (Myocardial Ischemia and Transfusion) trial using target trial emulation methods.

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Article Synopsis
  • Hepatic ischemia-reperfusion injury (IRI) occurs when blood flow returns to previously deprived liver tissues, causing significant cellular damage that may lead to liver dysfunction or failure.
  • While restoring blood flow is critical for healing, the process can paradoxically cause additional harm through a complex series of events.
  • The review discusses various laboratory models for studying hepatic IRI mechanisms, including animal models (like mice and pigs), cell lines, and machine perfusion setups.
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Purpose: The risk factors that modulate one's susceptibility for severe COVID-19 have been well documented. Despite this, hypercoagulability remains an often overlooked risk factor for severe disease for COVID-19. Because COVID-19 infection is a risk factor for hypercoagulability, a reasonable presumption/hypothesis is that patients with hereditary thrombophilia would be at a higher risk of thrombotic complications associated with COVID-19 infection.

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Human hnRNPA1 reorganizes telomere-bound replication protein A.

Nucleic Acids Res

November 2024

Department of Biochemistry and Molecular Biology, University of Iowa Carver College of Medicine, 51 Newton Road, IA City, IA 52242, USA.

Article Synopsis
  • RPA is a key protein that binds to single-stranded DNA and plays essential roles in DNA metabolism and telomere function.
  • It interacts with DNA to facilitate the replacement of other proteins during various cellular processes and is involved in managing G-quadruplexes at telomeres.
  • The study shows that hnRNPA1 can remodel the RPA complex at telomeres, while TERRA RNA can release hnRNPA1 from this complex, suggesting a specialized role in telomere protection.
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Background And Aims: Children with alpha-1-antitrypsin deficiency (AATD) exhibit a wide range of liver disease outcomes from portal hypertension and transplant to asymptomatic without fibrosis. Individual outcomes cannot be predicted. Liver injury in AATD is caused by the accumulation in hepatocytes of the mutant Z alpha-1-antitrypsin (AAT) protein, especially the toxic, intracellular polymerized conformation.

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Background: Current risk stratification tools for acute myocardial infarction (AMI) have limitations, particularly in predicting mortality. This study utilizes cardiac ultrasound radiomics (i.e.

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