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Extracellular vesicles in ageing cold-stored whole blood may not compensate for the decreasing haemostatic function in vitro.
Transfus Med
January 2025
Research and Development, Finnish Red Cross Blood Service, Vantaa, Finland.
Background: Extracellular vesicles (EVs) have procoagulative properties. As EVs are known to accumulate in stored blood products, we compared the EV content and coagulation capacity of leukoreduced cold-stored whole blood (CSWB) with current prehospital and in-hospital component therapies to understand the role of EVs in the haemostatic capacity of ageing CSWB.
Materials And Methods: Blood was obtained from 12 O RhD-positive male donors.
Endothelial Dysfunction and Hemostatic System Activation in Relation to Shift Workers, Social Jetlag, and Chronotype in Female Nurses.
Int J Mol Sci
January 2025
Thrombosis and Hemostasis Unit, Rambam Health Care Campus, Haifa 3109601, Israel.
Circadian misalignment, due to shiftwork and/or individual chronotype and/or social jetlag (SJL), quantified as the difference between internal and social timing, may contribute to cardiovascular disease. Markers of endothelial dysfunction and activation of the coagulation system may predict cardiovascular pathology. The present study aim was to investigate the effects of shift work, SJL, and chronotype on endothelial function and coagulation parameters.
View Article and Find Full Text PDFVisceral Adipose Tissue Inflammation and Vascular Complications in a Rat Model with Severe Dyslipidemia: Sex Differences and PAI-1 Tissue Involvement.
Biomolecules
December 2024
Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic.
We investigated the sex-dependent effects of inflammatory responses in visceral adipose tissue (VAT) and perivascular adipose tissue (PVAT), as well as hematological status, in relation to cardiovascular disorders associated with prediabetes. Using male and female hereditary hypertriglyceridemic (HHTg) rats-a nonobese prediabetic model featuring dyslipidemia, hepatic steatosis, and insulin resistance-we found that HHTg females exhibited more pronounced hypertriglyceridemia than males, while HHTg males had higher non-fasting glucose levels. Additionally, HHTg females had higher platelet counts, larger platelet volumes, and lower antithrombin inhibitory activity.
View Article and Find Full Text PDFBiodegradable Polymeric Microspheres with Enhanced Hemostatic and Antibacterial Properties for Wound Healing.
Biomacromolecules
January 2025
National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
Hemostasis is the initial step in wound healing, yet significant challenges, such as massive bleeding and infection, often arise. In this study, we developed amphiphilic biodegradable polyester-based segmented polyurethane (SPU) microspheres modified with epigallocatechin gallate (EGCG)-Ag nanoparticles and calcium-alginate cross-linking shell, combining blood absorption with the pro-coagulation properties of Ca and the negative charge of EGCG for synergistic hemostatic effects across various stages of the coagulation cascade. The in vitro blood clotting time of the SPU@EAg@CaAlg microsphere (328.
View Article and Find Full Text PDFTransition from Procoagulation to Antiplatelet Effect: Application and Mechanism of Aspirin-Modified Chitosan in Small-Diameter Vascular Grafts.
ACS Appl Bio Mater
January 2025
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
Chitosan is generally considered to be a procoagulant effect, which may cause adverse phenomena such as blood clotting when used in small-diameter vascular grafts. However, it also shows good biocompatibility and anti-inflammatory properties, which can facilitate vascular reconstruction. Therefore, it is significant to transition the effect of chitosan from coagulation promotion to antiplatelet while still harnessing its bioactivity.
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