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Ischemic stroke can cause damage to neurons, resulting in neurological dysfunction. The main treatments in the acute phase include intravenous thrombolysis, endovascular stent-assisted vascular thrombectomy and antiplatelet therapy. Due to the limitations of the time window and the risk of early intracranial hemorrhage, finding active treatment plans is crucial for improving therapy.
View Article and Find Full Text PDFPD-L1 positive platelets mediate resistance to immune checkpoint inhibitors in patients with colorectal cancer.
Cell Commun Signal
January 2025
Digestive Disease Center, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang Province, 154000, China.
Background: Programmed cell death ligand 1 (PD-L1) expression on immune cells is correlated with the efficacy of immune checkpoint inhibitor (ICI) therapy in various types of cancer. Platelets are important components of the tumour microenvironment (TME) and are widely involved in the development of many types of cancer including colorectal cancer (CRC). However, the role of PD-L1 positive platelets in ICI therapy for CRC remains unknown.
View Article and Find Full Text PDFComplex Cardiovascular Management in an 80-Year-Old Female With Gastrointestinal Bleeds and Klatskin Tumor: A Case of ST-Elevation Myocardial Infarction (MI) Management Complicated by Severe Anemia and Post-MI Ventricular Septal Defect Development.
Cureus
December 2024
Interventional Cardiology, Lee Health, Fort Myers, USA.
Managing acute coronary syndrome (ACS) in patients with a recent history of gastrointestinal bleeding presents a unique and challenging clinical dilemma, necessitating a careful balance between minimizing ischemic risk and avoiding potentially life-threatening rebleeding. Standard treatment for ACS typically involves dual antiplatelet therapy (DAPT) to prevent recurrent thrombotic events. However, in patients with recent gastrointestinal hemorrhage or significant anemia, these therapies may substantially increase the risk of life-threatening bleeding, complicating the decision-making process and often leading to conservative management strategies.
View Article and Find Full Text PDFIntegration of a specialist pharmacist-led multidisciplinary team in primary care: preventing strokes in people with atrial fibrillation across North East London.
BMJ Open Qual
January 2025
Department of Pharmacy, Barts Health NHS Trust, London, UK.
Public Health England outlines a national ambition of anticoagulating 90% of eligible patients with atrial fibrillation (AF) by 2029. In 2019/2020, two out of three boroughs reviewed in this study were in the bottom 10% of boroughs compared with others within England. Stroke National Audit data for these three boroughs from 2019 to 2020 identified that in patients with known AF admitted to hospital with strokes, 37% were not anticoagulated.
View Article and Find Full Text PDFSibanin, a novel black fly-derived Kunitz protease inhibitor, prevents thrombus formation in mice by anticoagulation-antiplatelet duality.
Int J Biol Macromol
January 2025
School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China. Electronic address:
Most Kunitz inhibitors exhibit serine protease inhibitory activity, but limited information is available on the regulation of platelet function. Herein, we report the purification and characterization of a novel single Kunitz domain inhibitor (Sibanin) from the salivary glands of the black fly Simulium bannaense. Recombinant Sibanin prolonged activated partial thromboplastin time and prothrombin time, and exhibited high-affinity binding to FXa and elastase with a KD of 5.
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