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The effects of aerobic exercise and heat stress on the unbound fraction of caffeine.
Front Physiol
January 2025
Human Physiology Research Unit, Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, Canada.
Introduction: The fraction of drug circulating in the blood that is not bound to plasma proteins ( ) is considered pharmacologically active since it readily binds to its receptor. evidence suggests that changes in temperature and pH affect the affinity of drug binding to plasma proteins, resulting in changes in . In light of the well-established effects of exercise on body temperature and blood pH, we investigated whether an increase in blood temperature and decrease in pH facilitated through passive heating and exercise translated to a change in the of caffeine.
View Article and Find Full Text PDFLong-term increase in soluble interleukin-6 receptor levels in convalescents after mild COVID-19 infection.
Front Immunol
January 2025
Institute of Clinical Biochemistry, Hannover Medical School, Hannover, Germany.
Introduction: Serum levels of interleukin-6 (IL-6) are increased in COVID-19 patients. IL-6 is an effective therapeutic target in inflammatory diseases and tocilizumab, a monoclonal antibody that blocks signaling via the IL-6 receptor (IL-6R), is used to treat patients with severe COVID-19. However, the IL-6R exists in membrane-bound and soluble forms (sIL-6R), and the sIL-6R in combination with soluble glycoprotein 130 (sgp130) forms an IL-6-neutralizing buffer system capable of neutralizing small amounts of IL-6.
View Article and Find Full Text PDFDistinct response patterns of endothelial markers to the BNT162b2 mRNA COVID-19 booster vaccine are associated with the spike-specific IgG antibody production.
Front Immunol
January 2025
Faculty of Medicine, University of Castilla-La Mancha, Albacete, Spain.
Introduction: Despite the efficacy and safety of SARS-CoV-2 vaccines, inflammatory and/or thrombotic episodes have been reported. Since the impact of COVID-19 vaccines on the endothelium remains uncertain, our objective was to assess endothelial activation status before and 90 days after the third dose of the BNT162b2 mRNA COVID-19 vaccine.
Methods: A prospective longitudinal study was conducted at University General Hospital of Albacete, involving 38 healthy health-care workers.
Extracellular acyl-CoA-binding protein as an independent biomarker of COVID-19 disease severity.
Front Immunol
January 2025
Inflammation and Immunity in Global Health Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.
Background: Factors leading to severe COVID-19 remain partially known. New biomarkers predicting COVID-19 severity that are also causally involved in disease pathogenesis could improve patient management and contribute to the development of innovative therapies. Autophagy, a cytosolic structure degradation pathway is involved in the maintenance of cellular homeostasis, degradation of intracellular pathogens and generation of energy for immune responses.
View Article and Find Full Text PDFCase report: Watch-and-wait strategy in resectable esophageal cancer following neoadjuvant chemoimmunotherapy: a case series.
Front Immunol
January 2025
Department of Thoracic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China.
Neoadjuvant chemoimmunotherapy (NCIT) has improved pathological complete response and conferred survival benefits in patients with locally advanced esophageal cancer. However, surgical complications unrelated to the tumor continue to detract from patient outcomes. While the "watch-and-wait" strategy has been implemented in clinical complete responders following neoadjuvant therapy for rectal cancer, there is a lack of evidence supporting its practicability in esophageal cancer after NCIT.
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