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Circadian influences on sudden cardiac death and cardiac electrophysiology.
J Mol Cell Cardiol
January 2025
Department of Physiology, University of Kentucky, Lexington, KY, USA; Department of Internal Medicine, University of Kentucky, Lexington, KY, USA. Electronic address:
Cardiologists have analyzed daily patterns in the incidence of sudden cardiac death to identify environmental, behavioral, and physiological factors that trigger fatal arrhythmias. Recent studies have indicated an overall increase in sudden cardiac arrest during daytime hours when the frequency of arrhythmogenic triggers is highest. The risk of fatal arrhythmias arises from the interaction between these triggers-such as elevated sympathetic signaling, catecholamine levels, heart rate, afterload, and platelet aggregation-and the heart's susceptibility (myocardial substrate) to them.
View Article and Find Full Text PDFSequels of COVID-19 in nephrology. Chronic kidney patients are more prone to hemodialysis need and mortality.
J Infect Dev Ctries
December 2024
Nephrology Department, UHC Mother Tereza, Tirane, Albania.
Introduction: Acute kidney injury involves inflammation and intrinsic renal damage, and is a common complication of severe coronavirus disease 2019 (COVID-19). Baseline chronic kidney disease (CKD) confers an increased mortality risk. We determined the renal long-term outcomes of COVID-19 in patients with baseline CKD, and the risk factors prompting renal replacement therapy (RRT) initiation and mortality.
View Article and Find Full Text PDFCardiovascular disease risk in Korean patients with systemic lupus erythematosus compared to diabetes mellitus and the general population.
Sci Rep
January 2025
Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, 04763, Republic of Korea.
To evaluate the incidence and risk of cardiovascular disease (CVD) among Korean patients with systemic lupus erythematosus (SLE) comparing them to diabetes patients and the general population. This nationwide cohort study focused on incident SLE patients aged over 40 years, matched with diabetes patients and the general population (1:4:4 ratio). CVD was defined as ischaemic heart disease, ischaemic stroke, and cardiac arrest.
View Article and Find Full Text PDFProtocol for assessing and visualizing cell microaggregate formation in whole blood by imaging flow cytometry.
STAR Protoc
January 2025
Heinz-Nixdorf-Chair of Biomedical Electronics, TranslaTUM, School of Computation, Information and Technology, TUM, Germany; Munich Institute of Biomedical Engineering, TUM, Germany. Electronic address:
Blood cell aggregates are clinically useful biomarkers in a number of medical disorders. This protocol provides accurate and quantitative analysis of cell aggregates using a small volume of whole blood and imaging flow cytometry. We describe steps for sample collection, staining, and measurement.
View Article and Find Full Text PDFPericytes mediate neuroinflammation via Fli-1 in endotoxemia and sepsis in mice.
Inflamm Res
January 2025
Department of Pathology and Laboratory Medicine, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC, 29425, USA.
Background: Sepsis-associated encephalopathy (SAE) often results from neuroinflammation. Recent studies have shown that brain platelet-derived growth factor receptor β (PDGFRβ) cells, including pericytes, may act as early sensors of infection by secreting monocyte chemoattractant protein-1 (MCP-1), which transmits inflammatory signals to the central nervous system. The erythroblast transformation-specific (ETS) transcription factor Friend leukemia virus integration 1 (Fli-1) plays a critical role in inflammation by regulating the expression of key cytokines, including MCP-1.
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