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Background: Ellagic acid (EA) has improving function against oxidative damage and inflammatory reaction in many disorders. Hepatic ischemia-reperfusion injury (IRI) is a common pathophysiological phenomenon in the veterinary clinic. In the present study, the protective effects of EA pretreatment against hepatic IRI-induced injury and the underlying mechanisms were investigated.
Results: We found that pyroptosis is involved in hepatic IRI, which is manifested in increasing the expression of pyroptosis-related genes and promoting the expression of active caspase-1, thereby cleaving GSDMD-N to cause pyroptosis, and caspase-1 mice were used to verify this conclusion. In addition, we found that EA protects against hepatic IRI by inhibiting pyroptosis, including reducing the activity of caspase-1 and its expression in the liver, inhibiting the lysis of GSDMD-N, and reducing the levels of IL-18 and IL-1β.
Conclusions: The present results have demonstrated that prophylactic administration of EA ameliorated hepatic IRI by inhibiting pyroptosis induced in hepatic ischemia-reperfusion in vivo through the caspase-1-GSDMD axis, providing a potential therapeutic option prevent hepatic IRI in pets.
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http://dx.doi.org/10.1186/s12917-022-03326-0 | DOI Listing |
Mater Today Bio
October 2025
Institute for Engineering Medicine, Kunming Medical University, Kunming, 650500, China.
Hepatic ischemia-reperfusion injury (IRI) poses a significant clinical challenge in liver surgery and transplantation, primarily mediated through oxidative stress, mitochondrial dysfunction, and inflammatory activation. Herein, we developed SOD2-Res@CVs, an engineered vesicular platform combining SOD2-overexpressing mesenchymal stem cell-derived vesicles with liver-targeted and ROS-responsive resveratrol (Res)-loaded liposomes for multi-mechanistic intervention. In vivo imaging demonstrated that SOD2-Res@CVs selectively accumulated in IRI-damaged hepatic tissues.
View Article and Find Full Text PDFYonsei Med J
September 2025
The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea.
Purpose: Ex vivo machine perfusion (EVMP) is increasingly recognized as a promising technique for enhancing the preservation and viability of donor organs, particularly in donation after circulatory death (DCD) liver transplantation (LT). This study validates a transplant surgeon-innovated EVMP protocol by assessing its efficacy in preserving liver function and reducing ischemia-reperfusion injury (IRI) in a porcine DCD-simulated liver transplant (DCD sLT) model.
Materials And Methods: Twenty Yorkshire pigs were used to compare static cold storage (SCS) and EVMP.
Antioxidants (Basel)
July 2025
Division of Liver and Pancreas Transplantation, Department of Surgery, The Dumont-UCLA Transplantation Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Reactive oxygen species (ROS) play a dual role as both essential signaling molecules and harmful mediators of damage. Imbalances in the redox state of the liver can overwhelm antioxidant defenses and promote mitochondrial dysfunction, oxidative damage, and inflammation. Complex feedback loops between ROS and immune signaling pathways are a hallmark of pathological liver conditions, such as hepatic ischemia-reperfusion injury (IRI).
View Article and Find Full Text PDFLiver Int
September 2025
Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Provincial Clinical Research Center for Natural Polymer Biological Liver, National Quality Control Center for Donated Organ Procurement, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University
Background And Aims: Hepatic ischaemia-reperfusion injury (IRI), a common complication after hepatectomy and liver transplantation (LT), is a local sterile inflammatory response driven by innate immunity. Myocyte enhancer factor-2D (MEF2D) plays an important role in immune inflammatory response by transcriptionally activating or inhibiting gene expression, which is tightly associated with the pathogenic progression of hepatic disorders. However, the role of MEF2D in hepatic IRI is still unclear.
View Article and Find Full Text PDFEur J Pharmacol
August 2025
Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand; Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Oral Biology and Diagnostic Sc
Hepatic ischemia-reperfusion injury (IRI) is a major complication following liver transplantation and significantly contributes to graft failure. Despite extensive research, an optimal preventive method remains elusive. Recently, fibroblast growth factors (FGFs) have emerged as key mediators of tissue repair and homeostasis.
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