• While PCAS has a unique cause and consequences, it can ultimately be thought of as type of global ischemia-reperfusion injury. (wikipedia.org)
  • This reperfusion results in inflammatory injury through three overlapping mechanisms. (wikipedia.org)
  • Unlike other causes of ischemia-reperfusion injury, such as organ transplants, PCAS results from global ischemia-reperfusion and subsequently has global organ damage. (wikipedia.org)
  • The symptoms of PCAS are related to the effect of ischemia-reperfusion injury on individual systems, though there is significant co-morbidity between all organs' responses. (wikipedia.org)
  • As a result, any amount of brain ischemia, especially when it is prolonged in cases of cardiac arrest, typically results in brain injury. (wikipedia.org)
  • The brain sustains irreversible injury after about 20 minutes of ischemia. (wikipedia.org)
  • For out-of-hospital cardiac arrest, brain injury is the cause of death in most patients who undergo ROSC but ultimately die. (wikipedia.org)
  • While ischemia is not the mechanism of injury, evidence suggests[clarification needed] that the lack of perfusion through the pulmonary vasculature during an arrest reduces the alveolar-arterial gradient which creates dead space. (wikipedia.org)
  • Despite the complexpathophysiology of ischemia, hypoxia alone is a sufficient stimulus to induce a variety of adaptive responsesthat protect against ischemia-reperfusion injury. (grantome.com)
  • Aim 1 will investigate the mechanisms by which EPO protects the heart from injury following ischemiaand reperfusion. (grantome.com)
  • In the heart, ROS have important functions in ischaemia/reperfusion-induced cardiac injury and in cytokine-stimulated hypertrophy. (elsevierpure.com)
  • ABSTRACT Purpose: To evaluate if the perconditioning affects the antioxidant capacity in mesenteric ischemia and reperfusion injury. (scielo.org)
  • Acute kidney injury (AKI) is a major concern following cardiac surgery and has the potential to significantly impact patient outcomes. (nature.com)
  • Cardiac surgery-associated acute kidney injury (CSA-AKI) occurs in ≥50% of patients with chronic kidney disease (CKD) undergoing cardiac surgery with cardiopulmonary bypass (CPB) 2 . (nature.com)
  • Danger-associated molecular patterns (DAMPs) are endogenous ligands released from renal tubular cells following ischemia/reperfusion injury that activate the complement system through the classical, lectin and alternative pathways. (nature.com)
  • Ischemia due to early hypoperfusion followed by ischemia reperfusion injury (IRI) results in renal tissue damage 4 . (nature.com)
  • Complement activation induces synthesis of pro-inflammatory cytokines and the membrane attack complex directly causes cell injury, apoptosis and necrosis, which in turn cause further complement activation and a vicious circle of inflammation and cell damage 4 . (nature.com)
  • In heart transplantation, donor hearts inevitably suffer from ischemia/reperfusion (I/R) injury, which leads to primary graft dysfunction and affects patients' survival rate. (researchsquare.com)
  • Previous studies have shown that ischemia/reperfusion (I/R) injury acts as a significant role in PGD(4), contributing to adverse short- and long-term clinical outcomes in the recipients. (researchsquare.com)
  • The key mechanisms underlying myocardial I/R injury include increased intracellular calcium concentration, sudden generation of reactive oxygen species (ROS) and inflammatory cytokines, adenosine triphosphate (ATP) depletion, and development of metabolic acidosis. (researchsquare.com)
  • Other compounds associated with MI are nitric oxide (NO) and its metabolites, which have been reported to protect the heart from ischemia/reperfusion (IR) injury and decrease MI in general [ 7 ]. (hindawi.com)
  • The transforming growth factor-beta superfamily member growth-differentiation factor-15 protects the heart from ischemia/reperfusion injury. (biovendor.com)
  • Targeted complement inhibitors protect against posttransplant cardiac ischemia and reperfusion injury and reveal an important role for the alternative pathway of complement activation. (musc.edu)
  • The present study aimed to investigate the roles of miR‑132 in myocardial ischaemia/reperfusion (I/R) injury and the underlying mechanisms. (spandidos-publications.com)
  • Ischaemia-reperfusion (I/R) injury is the most important and common cause of myocardial damage and subsequent heart failure worldwide ( 1 , 2 ). (spandidos-publications.com)
  • Renal ischemia-reperfusion injury (IRI) is considered as a major cause of acute kidney injury. (frontiersin.org)
  • Renal ischemia-reperfusion injury (IRI) is a common pathophysiological phenomenon in clinical settings. (frontiersin.org)
  • Wild‐type C57BL/6J mice (male, 8-10 weeks old) were used and murine myocardial ischemia and reperfusion injury (IRI) model was conducted, cardiac function was evaluated by echocardiography. (edu.iq)
  • Reperfusion injury refers to the tissue damage inflicted when blood flow is restored after an ischemic period of more than about ten minutes. (benbest.com)
  • Cryonics patients frequently experience ischemic & reperfusion injury between the time when the heart stops and cryostorage begins. (benbest.com)
  • In this article I attempt to evaluate the nature & extent of ischemic & reperfusion injury -- primarily focused on the impact for cryonics (although certainly relevant to stroke and cardiac arrest). (benbest.com)
  • I focus my attention on ischemic/reperfusion injury to the brain. (benbest.com)
  • The present study was designed to investigate the expression changes of PPAR-alpha, -beta, -gamma and NF-kappa B in the hippocampus of rats with global cerebral ischemia/reperfusion injury (GCIRI) after treatment with agonists or antagonists of PPAR-gamma. (biomedcentral.com)
  • Global cerebral ischemia/reperfusion injury (GCIRI) occurs in patients who are successfully resuscitated from various clinical conditions such as cardiac arrest, asphyxia and shock, which are frequently accompanied by inflammation and can lead to serious neuronal injury, and further to neurodegeneration and learning and memory impairment [ 12 ]. (biomedcentral.com)
  • Proinflammatory cytokines, such as interleukin (IL)-1β, IL-6 and tissue necrosis factor (TNF)-α, have been implicated as important mediators of injury following cerebral ischemia [ 13 ] and contribute to pathogenesis, exacerbating brain tissue damage following ischemia/reperfusion (I/R) injury [ 14 ]. (biomedcentral.com)
  • Moreover, it was observed that, PGRN protects the heart against ischemia-reperfusion injury. (biomedcentral.com)
  • Above all, PGRN also provides protection in the initial phase following myocardial ischemia-reperfusion injury. (biomedcentral.com)
  • Short-term cardiac stress, induced by ischemia-reperfusion (I/R) injury resulted in impaired left ventricular (LV) recovery and increased infarct size in heterozygous Hmox1-deficient (Hmox1 +/− ) mice [ 55 ]. (springer.com)
  • Ischaemic reperfusion injury (IRI) after tourniquet release during total knee arthroplasty (TKR) is related to postoperative cerebral complications. (medsci.org)
  • Tourniquet release during the late period of TKR can induce ischaemic-reperfusion injury, eliciting the activation of neutrophils, circulating pro-inflammatory cytokines, and reactive oxygen species [ 2 , 3 ]. (medsci.org)
  • Abstract Hepatic ischemia/reperfusion (I/R) injury is a common clinical challenge. (123dok.net)
  • Ischemia-reperfusion (I/R) injury is a process whereby parenchymal damage caused by blood flow deprivation is accentuated upon organ reperfusion. (123dok.net)
  • Using a mouse model, we investigated cardiac remodeling under the influence of acute cigarette smoke (CS) exposure following ischemic injury in both sexes. (biomedcentral.com)
  • Ischemic injury due to coronary artery disease is the most common pathological cause of cardiac remodeling [ 6 ]. (biomedcentral.com)
  • Acute kidney injury following cardiac surgery is a serious complication. (medscape.com)
  • The attenuation of neurological injury from the use of simvastatin after spinal cord ischemia-reperfusion injury in rats. (medscape.com)
  • Dexmedetomidine prevents acute kidney injury after adult cardiac surgery: a meta-analysis of randomized controlled trials. (medscape.com)
  • Increasing evidence has shown that BMSCs secrete a vast array of bioactive factors, such as chemokines/cytokines (12), anti-apoptotic, and growth factors (13, 14). (researchsquare.com)
  • This is mostly due to surface toll-like receptors (TLRs) that can recognize both extracellular highly conserved microorganism structures or PAMPs (pathogen-associated molecular patterns) and alarmins further activating transcription factors of the same proinflammatory genes coding the production of proinflammatory regulatory substances, including cytokines and chemokines [ 4 , 5 ]. (hindawi.com)
  • This covers the production of several cytokines and chemokines including interleukin 1 (IL-1), interleukin 6 (IL-6), tumor necrosis factor- alpha (TNF-α) and chemokine (C-C motif) ligand 2 (CCL2) [ 4 ]. (biomedcentral.com)
  • Inflammatory dysregulation resulting from each organ failure results in rising levels of circulating chemokines, cytokines and activated lymphocytes [ 17 ]. (biomedcentral.com)
  • Members of the ADAM family contribute to various physiological and pathophysiological processes by modulation of molecules like growth factors or cytokines. (frontiersin.org)
  • The aim of this study was to study the possible anti-inflammatory effect of hydrogen-rich saline (H(2) saline) on rat hearts with regional myocardial ischemia and reperfusion (I/R). Sixty-six rats were equally randomized to three groups: sham-operated group, I/R group (control group) and I/R plus H(2) saline treatment group. (molecularhydrogenstudies.com)
  • Hang P, Sun C, Guo J, Zhao J, Du Z. BDNF-mediates Down-regulation of MicroRNA-195 Inhibits Ischemic Cardiac Apoptosis in Rats. (ijbs.com)
  • Cardiac function and apoptosis were detected in MI rats intravenously injected with antagomiR-195. (ijbs.com)
  • Moreover, inhibition of miR-195 significantly improved cardiac function of MI rats. (ijbs.com)
  • Within two minutes of ischemia, extracellular pH can drop from about 7.3 to about 6.7. (benbest.com)
  • GDF15 expression is highly induced in cardiomyocytes after ischemia/reperfusion and in the heart within hours after myocardial infarction (MI). (biovendor.com)
  • In ischemia (heart attack), oxytocin infusion into the heart may preserve cardiomyocytes (heart muscle cells) from apoptosis. (pharmalabglobal.com)
  • In addition, continuous oxytocin nasal spray administration may help train cardiac stem cells to help regenerate tissue via direct differentiation, production of protective and cardiomyogenic factors, and their union with injured cardiomyocytes [6] . (pharmalabglobal.com)
  • Cardiac surgery with cardiopulmonary bypass (CPB) is associated with a systemic inflammatory response syndrome (SIRS) that is known to be one of the main causes of postoperative organ dysfunction (1). (peertechzpublications.com)
  • This myocardial dysfunction may present as prolonged cardiogenic shock, highly variable blood pressures, reduced cardiac output and/or dysrhythmias. (wikipedia.org)
  • The term cardiorenal syndrome (CRS) is often used to describe this condition and represents an important model for exploring the pathophysiology of cardiac and renal dysfunction. (biomedcentral.com)
  • The current definition has been expanded into five subtypes whose etymology reflects the primary and secondary pathology, the time frame, as well as cardiac and renal co-dysfunction secondary to systemic disease [ 1 ] (Table 1 ). (biomedcentral.com)
  • Perioperative organ dysfunction was evaluated by cardiac surgery scorring (CASUS) system. (peertechzpublications.com)
  • Numerous studies have documented that cardiomyocyte apoptosis occurs in border zone of infarct scars and in the remote zone of non-infarcted myocardium [ 2 - 4 ], which exacerbates the post-MI remodeling and aggravates cardiac dysfunction [ 5 ]. (ijbs.com)
  • There was also an increase in cardiac tissues and serum levels of the pro-inflammatory cytokines interleukin-6 (IL-6) and tumor necrosis factor- α (TNF- α ) [ 1 , 4 ]. (hindawi.com)
  • It also decreased neutrophil infiltration, 3-nitrotyrosine level, expression of intercellular adhesion molecule 1(ICAM-1) and myeloperoxidase (MPO) activity in the area at risk zones (AAR) of rat hearts subjected to regional myocardial I/R, and attenuated the increase of I/R induced proinflammatory cytokine tumor necrosis factor-α (TNF-a) and interleukin-1β (IL-1b) levels in the AAR. (molecularhydrogenstudies.com)
  • LPS results in the overexpression and release of proinflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6), which contribute to LPS-induced multiple organs failure including myocardial depression [ 6 , 7 ]. (biomedcentral.com)
  • Simultaneous stimulation of toll-like receptors (TLRs) and triggering receptor expressed on myeloid cells (TREM-1) activating receptor on monocytes results in the amplification of the inflammatory signal and multiple increase in proinflammatory cytokine production. (hindawi.com)
  • Third, reperfusion initiates an immune, inflammatory response resulting in the circulation of pro-inflammatory cytokines such as TNFα, IL-6 and IL-8 as well as complement activation (such as TCC and C3bc). (wikipedia.org)
  • The microvascular and parenchymal organ damage induced upon ischemia tissue reperfusion is mainly attributed to the reactive oxygen-free radicals, and it has been demonstrated in many organs. (frontiersin.org)
  • Serum macrophage inhibitory cytokine 1 in rheumatoid arthritis: a potential marker of erosive joint destruction. (biovendor.com)
  • At 24 h post-operatively, we assessed the serum levels of creatinine and urea nitrogen, expression levels of peroxisome proliferator-activated receptor gamma (PPAR-γ) and NF-κB-related (p-IKK-β and IκB-α) proteins, and mRNA expression levels of the inflammatory cytokines, including TNF-α and MCP-1, in the renal tissue of various study groups. (frontiersin.org)
  • The changes in serum cytokine and lactate dehydrogenase (LDH) levels were assessed and arterial blood gas analysis was performed. (medsci.org)
  • Extract pretreatment significantly decreased the level of serum CK and LDH, reduced the generation of inflammatory cytokines such as TNF-α and IL-6, and also reduced serum level of MDA in the LPS + extract group compared with the LPS group. (biomedcentral.com)
  • Ischemia is the condition suffered by tissues & organs when deprived of blood flow -- mostly the effects of inadequate nutrient & oxygen. (benbest.com)
  • Meanwhile, the organ protective effect of ischaemic preconditioning could be induced when the episodic ischaemia is at distant tissues or organs, the concept being termed remote ischaemic preconditioning (RIPC) [ 9 ]. (medsci.org)
  • The application of RIPC into clinical fields is more useful than ischaemic preconditioning because it is easy to apply briefly preceding ischaemia to distant organs such as the limbs. (medsci.org)
  • Remote ischaemic preconditioning (RIPC) is the phenomenon whereby brief periods of ischaemia (reduced oxygen delivery) in one organ can have a protective effect against subsequent prolonged ischaemic insults in other organs. (researchforlife.org.nz)
  • Several factors such as contact of blood with foreign surfaces, surgical trauma, ischemia reperfusion to the organs, and release of endotoxin have been widely documented to cause SIRS after CPB. (peertechzpublications.com)
  • Cardiac function, histology, and infarct size were assessed, and inflammatory markers quantified by RT-PCR. (biomedcentral.com)
  • Acute administration of cannabidiol in vivo suppresses ischaemia- induced cardiac arrhythmias and reduces infarct size when given at reperfusion. (myoptivida.com)
  • This group was evaluated for the risk factors, presenting symptoms, killip class, type of acute coronary syndrome (STEMI vs NSTEMI), time to presentation to hospital, treatment received (medical management/thrombolysis/PCI/CABG), cardiac arrhythmias, mean ejection fraction, HRCT chest (CORADS grading), any complications and immediate outcome. (scialert.net)
  • Acute myocardial infarction (MI) can lead to sudden cardiac death, which is one of the leading causes of death and disability worldwide [ 1 ]. (ijbs.com)
  • However, it is not easy to apply ischaemic preconditioning in a clinical setting because brief organ ischaemia should be preceded after real ischaemic time [ 8 ]. (medsci.org)
  • Around 60% patients presented with killip class I, 4 patients had cardiac arrhythmias (first degree heart block, 2:1 AV block, atrial fibrillation and ventricular tachycardia). (scialert.net)
  • Excessive glutamate release resulting in excessive Ca +2 entry into cells is the excitotoxicity which initiates the brain ischemic damage seen in stroke and cardiac arrest. (benbest.com)
  • Upon binding to their receptors, cytokines activate JAKs which then phosphorylate the cytokine receptor, thereby creating docking sites for signaling molecules, notably, members of the signal transducer and activator of transcription (STAT) family that ultimately lead to gene expression. (justia.com)
  • After the brain, the heart is the second most sensitive organ to ischemia. (wikipedia.org)
  • If the cause of the cardiac arrest was fundamentally a coronary pathology, then the consequences to the heart may include myocardial infarction complications. (wikipedia.org)
  • Long term survival of heart transplant recipients is limited by chronic rejection, cardiac allograft vasculopathy (CAV), and malignancy. (lidsen.com)
  • Researchers hypothesized that oxytocin might help protect the heart and vascular system by speeding wound healing and reducing inflammatory cytokines. (pharmalabglobal.com)
  • Hemp extract has shown to stop the production of endotoxins, pro- inflammatory cytokines that are associated with the progression of heart disease. (myoptivida.com)
  • 2. Department of Cardiology, the First Affiliated Hospital (Key Laboratory of Cardiac Diseases and Heart Failure), Harbin Medical University, Harbin 150001, Heilongjiang Province, P. R. China. (ijbs.com)
  • Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures. (bvsalud.org)
  • MIC-1, a novel macrophage inhibitory cytokine, is a divergent member of the TGF-beta superfamily. (biovendor.com)
  • Macrophage inhibitory cytokine 1 in fetal membranes and amniotic fluid from pregnancies with and without preterm labour and premature rupture of membranes. (biovendor.com)
  • The aim of this study was to determine the role of Hmox1 in the monocyte/macrophage-mediated cardiac remodeling in a mouse model of MI. (springer.com)
  • Studies of renal transplant recipients and patients undergoing cardiac surgery suggest that damage and inflammation caused by IRI and CPB is amplified by complement activation 4 . (nature.com)
  • Cardiac transplant is a widely accepted therapy for select patients with end stage cardiovascular disease. (lidsen.com)
  • Studies using animal models have shown RIPC has a significant influence on gene expression and cellular function, including changes in cytokine production and leukocyte activation. (researchforlife.org.nz)
  • Hypoxic cardiac myocytes generate excess H+ through increased anaerobic glycolysis, net hydrolysis of ATP, and CO2 retention. (biomedres.us)
  • Patients were eligible if they had both of the following: 1) an elevated cardiac troponin I level (≥2.0 ng/mL) or troponin T level (≥0.1 ng/mL) or creatine kinase-MB (≥19 U/L, exceeding twice the upper limit of normal) and 2) new ST-segment elevation of greater than 2 mm in at least 2 precordial leads or greater than 1 mm in at 2 least limb leads. (biomedcentral.com)
  • Ischemia is characterized by deprivation of oxygen (hypoxia), metabolicsubstrates, and cytokines/survival factors, as well as accumulation of toxic metabolites. (grantome.com)
  • There is currently tremendous interest inunderstanding the endogenous responses to ischemia and infarction. (grantome.com)
  • GDF15 may be a predictive biomarker of adverse cardiac events. (biovendor.com)
  • The cumulative rates of 24-month all-cause deaths and major adverse cardiac and cerebrovascular events (MACCEs) were calculated. (biomedcentral.com)
  • it acts as an anti-inflammatory cytokine and in vascular protection, besides important cardiac protection in the presence of ischemia-reperfusion syndrome. (scielo.org)
  • Munagala M, Phancao A. Cardiac Allograft Vasculopathy: A Review of Risk Factors and Pathogenesis. (lidsen.com)
  • HIF-1 target genes also encode survivalfactors, such as insulin-like growth factor 2 as well as EPO and VEGF, which can block apoptotic signalinginduced by ischemia. (grantome.com)
  • In this proposal, we will investigate the role of HIF-1 and of proteinsencoded by HIF-1 target genes, such as EPO, in promoting protection against cardiac ischemia-reperfusioninjury. (grantome.com)
  • Recently it has been shown that individual genetic polymorphisms in the genes encoding inflammatory cytokines, apolipoprotein E4 and lipoprotein lipase and the like have a major impact on the magnitude of SIRS in patients undergoing CPB (2-4). (peertechzpublications.com)
  • Different pathological and physiological stimuli are responsible for cardiac remodeling. (biomedcentral.com)
  • Since many situations resulting from traumatic accidents or pathologies are due to cell damage caused by ischemia-reperfusion syndrome, it is relevant to study new therapeutic alternatives that will contribute to reducing these lesions. (scielo.org)
  • The production of antioxidant enzymes that scavenge free radicals in ischemic tissue is then impaired, thereby exacerbating the damage caused by these free radicals in the post ischemic reperfusion tissue. (frontiersin.org)
  • Ischemia and reperfusion can cause serious brain damage in stroke or cardiac arrest. (benbest.com)
  • Further research in mice shows that oxytocin can prevent diabetes-related cardiac damage. (pharmalabglobal.com)
  • In in vitro studies, however, treatment with H 2 O 2 increases [ 35 S]GTPγS binding to cardiac membranes and directly activates purified heterotrimeric G(i) and G(o) but not G(s). (elsevierpure.com)
  • These findings indicate that CS exposure worsens the progression of cardiac remodeling post-MI in male sex in a significant manner compared to female sex at least at early stages. (biomedcentral.com)
  • If return of spontaneous circulation (ROSC) is achieved after CPR, then circulation resumes, resulting in global reperfusion and the subsequent distribution of the ischemia products throughout the body. (wikipedia.org)
  • This change has been linked to activation of energy-consuming processes, which leads to decreased levels of adenosine triphosphatase (ATP) and a subsequent lack of energy sources for healthy cardiac function. (medscape.com)
  • Ischaemic preconditioning describes the phenomenon where transient and brief ischaemia confers protection against a subsequent prolonged and injurious period of ischaemia. (medsci.org)
  • Aim 2 will investigate the role of HIF-1 in mediating adaptive responses to cardiac ischemiaand reperfusion. (grantome.com)
  • The objective of this study is to carry out a literature review on the role of adiponectin in ischemia-reperfusion syndrome. (scielo.org)
  • In particular, the JAK family of cellular protein tyrosine kinases (JAK1, JAK2, JAK3, and TYK2) play a central role in cytokine signaling (Kisseleva et al. (justia.com)
  • Rapid recovery of the blocked coronary flow represents the most effective strategy to reduce the size of myocardial infarction and improve the cardiac function. (edu.iq)
  • Splenectomy decreased the numbers of circulating inflammatory Ly6C hi monocytes in blood, reduced the numbers of proinflammatory cardiac macrophages and significantly improved the post-MI LV function in Hmox1 −/− mice. (springer.com)
  • On the one hand, it improves early post-MI survival by decreasing the occurrence of cardiac rupture. (springer.com)
  • The results support significant roles for miR-126 in regulating cardiac myocyte survival pathways and cell death during exposure to simulated ischemia and acidosis. (biomedres.us)