Objectives: Propofol is an anesthetic agent frequently used for sedation and general anesthesia. The purpose of our study was to investigate the effect of propofol, a general anesthetic, on erythrocyte deformability in rats.
Methodology: The study was performed on 20 male and 20 female rats, with 10 rats in each study group and 10 rats in each control group. The rats in the study group were administered propofol (150 mg.kg(-1)) intraperitoneally, and the rats in the control group were administered SF. Erythrocyte packs were prepared using heparinized total blood samples. Deformability measurements were done by erythrocyte suspensions in PBS buffer. A constant flow filtrometer system was used to measure erythrocyte deformability, and the relative resistance was calculated.
Results: The use of propofol resulted in the increase in the relative resistance, which is an indicator for the erythrocyte deformability in both male and female rats (p = 0.002, p = 0.042, respectively).
Conclusion: A negative change in the erythrocyte deformability may cause a functional deterioration in blood flow and tissue perfusion (Fig. 1, Ref. 23).
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Biomedicines
November 2024
Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 2, 811 08 Bratislava, Slovakia.
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November 2024
Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Sasinkova 2, 811 08 Bratislava, Slovakia.
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Laboratorio de Fisicoquímica Biológica, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, 11400, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, 11800, Uruguay. Electronic address:
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Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia. Electronic address:
RBCs deformability plays a crucial role in maintaining proper blood flow and oxygen delivery throughout the body. Conventional ektacytometry fails to differentiate between variations in deformability of RBC subpopulations as the averaging measurement process obscures these differences. In this study, we introduced an approach that integrates label-free optics-based techniques (flow cytometry, phase-contrast, and two-photon excitation fluorescent microscopy) with ektacytometry to evaluate subpopulations that exhibit decreased RBCs deformability upon an in vitro oxidation using 0.
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Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China. Electronic address:
Patients on maintenance hemodialysis exhibit a notably higher risk of cardio-cerebrovascular complications that constitute the major cause of death. Preceding studies have reported conflicting associations between traditional lipid measures and clinical outcome in dialysis patients. In this prospective longitudinal study, we utilized quantitative lipidomics to elucidate, at molecular resolution, changes in lipidome profiles of erythrocyte and plasma samples collected from maintenance hemodialysis patients followed up for 86 months (≈7 years).
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