Jianjun Ouyang, Weiqiang Xiao, Di Wu, Manyun Bai, Qian Zhao, Yufang Li
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引用次数: 0
Abstract
Background: The use of tourniquets (TQ) during the total knee arthroplasty (TKA) induced ischemia-reperfusion (I/R) injury in the limb, resulting in the release of inflammatory cytokines and reactive oxygen species (ROS), therefore leading to myocardial damage. This study aimed to investigate the effects and molecular mechanism of Esketamine on myocardial injury (MI) caused by TQ-induced I/R injury.
Methods: A randomized numerical table method was used to divide 23 patients into the C group (11 cases, ACB + conventional anesthesia) and M group (12 cases, ACB + conventional anesthesia + 0.5 mg/kg Esketamine). The levels of lactate dehydrogenase (LDH), Malondialdehyde (MDA), Fe2+, Glutathione Peroxidase (GSH-Px), glutathione (GSH), IL-6, TNF-α, Creatine Kinase (CK) and CreatineKinase-MB (CKMB) were determined by reagent kits. The expression of CGAMP interaction factor (STING), Glutathione Peroxidase 4 (GPX4), and Ferritin Heavy Chain 1 (FTH1) was examined by Western blot. The ROS level was tested by flow cytometry. The expression of STING was validated by immunofluorescence.
Results: Compared with the C group, the levels of GSH-Px and GSH were increased while the levels of IL-6, TNF-α, MDA, Fe2+, CK, CKMB, and LDH were decreased in the M group. Furthermore, esketamine relieved the OGD/R-induced increase of MDA, Fe2+, and ROS and the decrease of GSH-Px, GSH, GPX4, and FTH1, which were reversed by STING overexpression.
Conclusion: Esketamine alleviated cardiomyocyte ferroptosis via STING, which might be the molecular mechanism of Esketamine to ameliorate the MI caused by TQ-induced I/R injury.
Supplementary information: The online version contains supplementary material available at 10.1007/s10616-025-00723-9.
期刊介绍:
The scope of the Journal includes:
1. The derivation, genetic modification and characterization of cell lines, genetic and phenotypic regulation, control of cellular metabolism, cell physiology and biochemistry related to cell function, performance and expression of cell products.
2. Cell culture techniques, substrates, environmental requirements and optimization, cloning, hybridization and molecular biology, including genomic and proteomic tools.
3. Cell culture systems, processes, reactors, scale-up, and industrial production. Descriptions of the design or construction of equipment, media or quality control procedures, that are ancillary to cellular research.
4. The application of animal/human cells in research in the field of stem cell research including maintenance of stemness, differentiation, genetics, and senescence, cancer research, research in immunology, as well as applications in tissue engineering and gene therapy.
5. The use of cell cultures as a substrate for bioassays, biomedical applications and in particular as a replacement for animal models.