In this study, we develop an model of a neuron's behaviour under demyelination caused by a cytokine storm to investigate the effects of viral infections in the brain. We use a comprehensive model to measure how cytokine-induced demyelination affects the propagation of action potential (AP) signals within a neuron. We analysed the effects of neuron-neuron communications by applying information and communication theory at different levels of demyelination. Our simulations demonstrate that virus-induced degeneration can play a role in the signal power and spiking rate, which compromise the propagation and processing of information between neurons. We propose a transfer function to model the weakening effects on the AP. Our results show that demyelination induced by a cytokine storm not only degrades the signal but also impairs its propagation within the axon. Our proposed model can analyse virus-induced neurodegeneration and enhance our understanding of virus-induced demyelination.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11371429 | PMC |
http://dx.doi.org/10.1098/rsob.240138 | DOI Listing |
Am J Physiol Cell Physiol
January 2025
Department of Pharmaceutical Sciences, School of Pharmacy, College of Health and Human Sciences, North Dakota State University, Fargo, ND, USA.
Intra-abdominal sepsis is a life-threatening complex syndrome caused by microbes in the gut microbiota invading the peritoneal cavity. It is one of the major complications of intra-abdominal surgery. To date, only supportive therapies are available.
View Article and Find Full Text PDFImmun Inflamm Dis
January 2025
State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Background: Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a major concern due to its astonishing prevalence and high fatality rate, especially among elderly people. Patients suffering from COVID-19 may exhibit immunosuppression in the initial stage of infection, while a cytokine storm can occur when the disease progresses to a severe stage. This inopportune immune rhythm not only makes patients more susceptible to the virus but also leads to numerous complications resulting from the excessive production of inflammatory factors.
View Article and Find Full Text PDFEgypt Heart J
January 2025
Intensivista Pediátrico, Fundación Clínica Infantil Club Noel, Cali, Colombia.
Background: The mitroaortic intervalvular fibrosa is an avascular structure near the left ventricular outflow tract, between the mitral and aortic valves. Mitroaortic intervalvular fibrosa complications, such as tamponade, hemopericardium, and abscesses, are rare and often diagnosed postmortem. On the other hand, the COVID-19 pandemic notably impacted pediatric patients with congenital heart diseases, who frequently presented cardiac complications including arrhythmias, elevated troponins, myocarditis, and heart failure.
View Article and Find Full Text PDFCurr Oncol
December 2024
Department of Pharmacy, Nova Scotia Health, QEII Health Sciences Centre, Halifax, NS B3H 2Y9, Canada.
Nova Scotia (NS) began offering CAR T-cell therapy as a third-line standard of care for eligible patients with relapsed or refractory large B-cell lymphoma (r/r LBCL) in 2022. Recipients of CAR T-cell therapy often experience acute toxicities, including cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS), which require close monitoring and prompt management. This retrospective review aimed to describe the characteristics of adult patients with r/r LBCL deemed eligible to receive CAR T-cell therapy with axicabtagene ciloleucel in NS between January 2022 and June 2024, the toxicities experienced and toxicity management, hospital visits and intensive care unit (ICU) admissions, the utilization of toxicity management guidelines, and general efficacy outcomes.
View Article and Find Full Text PDFInt J Artif Organs
January 2025
Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Kowloon, Hong Kong.
We reported the cytokine profile in children <18 years old who received extracorporeal blood purification (EBP) for sepsis, rhabdomyolysis, hyperbilirubinaemia, acute respiratory distress syndrome or cytokine storm, and determined the factors affecting the cytokine removal kinetics. Plasma levels of 38 types of cytokine/chemokine were measured at pre-EBP, 12 and 24 h after initiating EBP. Altogether there were 11 eligible episodes admitted between April 2021 and December 2023.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!