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Ischemic and reperfusion injuries of the heart underlie the pathogenesis of acute myocardial infarction (AMI) and sudden cardiac death. The mortality rate is still high and is 5-7% in patients with ST-segment elevation myocardial infarction. The review is devoted to pharmacological approaches to limitation of ischemic and reperfusion injuries of the heart. The article analyzes experimental evidence and the clinical data on the effects of P2Y receptor antagonists on the heart's tolerance to ischemia/reperfusion in animals with coronary artery occlusion and reperfusion and also in patients with AMI. Chronic administration of ticagrelor prevented adverse remodeling of the heart. There is evidence that sphingosine-1-phosphate is the molecule that mediates the infarct-reducing effect of P2Y receptor antagonists. It was discussed a role of adenosine in the cardioprotective effect of ticagrelor.
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http://dx.doi.org/10.4070/kcj.2022.0162 | DOI Listing |
J Vis Exp
August 2025
Department of Cardiology, First Hospital of Nanping City affiliated to Fujian Medical University;
Myocardial ischemia-reperfusion injury (MIRI) endures as a substantial impediment to the management of cardiovascular disease. The pathophysiology of MIRI is complex, involving oxidative stress, calcium overload, inflammation, and apoptosis. The NRG1/ErbB4 signaling pathway has been implicated in modulating oxidative stress responses in the heart, potentially reducing cellular damage caused by free radicals.
View Article and Find Full Text PDFJ Cardiovasc Transl Res
September 2025
Department of Cardiology, Bei'an Hospital, Beidahuang Group, Heihe, 164000, Heilongjiang Province, China.
Myocardial ischemia/reperfusion injury (MIRI) worsens ischemic damage, with ferroptosis as a key mediator of this iron-dependent cell death. Lactylation, a novel epigenetic modification, remains poorly understood in MIRI-associated ferroptosis. This study aimed to elucidate the mechanistic link between lactylation and ferroptosis in MIRI.
View Article and Find Full Text PDFNeurosurg Rev
September 2025
Department of Neurology, Radiology & Neurosurgery, University of Iowa Hospitals and Clinics, Iowa, IA, USA.
The role of intravenous thrombolysis (IVT) in patients with tandem lesions (TL) undergoing endovascular thrombectomy (EVT) for acute ischemic stroke (AIS) remains a subject of ongoing debate. The substantial clot burden and the potential need for periprocedural antiplatelet therapy during emergent carotid stenting (CAS) add to the complexity of treatment decisions. This study aims to systematically review and meta-analyze the literature to evaluate the comparative safety and efficacy of IVT plus EVT versus EVT alone in AIS patients with TL.
View Article and Find Full Text PDFJ Biochem Mol Toxicol
September 2025
Department of Anesthesiology, Qianjiang Maternal and Child Health and Family Planning Service Centre, Qianjiang, Hubei, China.
Acute lung injury (ALI) is a major contributor to the high morbidity and mortality associated with intestinal ischemia-reperfusion (II/R). Despite its severity, current clinical management of ALI remains limited to supportive care without addressing the cause of the disease, underscoring the urgent need to investigate the underlying mechanism and develop targeted therapies. In this study, we employed both in vitro and in vivo models to explore ALI in the setting of II/R.
View Article and Find Full Text PDFJ Integr Neurosci
August 2025
Department of Neurology, Peking University First Hospital Taiyuan Hospital, 030000 Taiyuan, Shanxi, China.
Background: Remote ischemic conditioning (RIC), a novel neuroprotective therapy, has broad potential for reducing the occurrence and recurrence of cerebrovascular events, yet its mechanisms are not incompletely understood. The aim of this study is to investigate whether RIC alleviates apoptosis, inflammation, and reperfusion injury in rat models of ischemic stroke by regulating the Elabela (ELA)-apelin-Apelin receptor (APJ) system.
Methods: We established a rat model of middle cerebral artery occlusion (MCAO) with ischemia-reperfusion injury, and RIC was administered twice daily for 3 days post-MCAO.