Reperfusion Research

03:46 EST 19th January 2019 | BioPortfolio

Inhibition of Smurf2 translation by miR-322/503 protects from ischemia reperfusion injury by modulating EZH2/Akt/GSK3β signaling.

myocardial ischemia/reperfusion (I/R) is a common and lethal disease that threatens people's life worldwide. The underlying mechanisms are under intensive study and yet remain unclear. Here, we explored the function of miR-322/503 in myocardial I/R injury.

Inhibition of cardiomyocyte Sprouty1 protects from cardiac ischemia-reperfusion injury.

Sprouty1 (Spry1) is a negative modulator of receptor tyrosine kinase signaling, but its role in cardiomyocyte survival has not been elucidated. The aim of this study was to investigate the potential role of cardiomyocyte Spry1 in cardiac ischemia-reperfusion (I/R) injury. Infarct areas of mouse hearts showed an increase in Spry1 protein expression, which localized to cardiomyocytes. To investigate...

Preconditioning against renal ischaemia reperfusion injury: the failure to translate to the clinic.

Acute kidney injury (AKI) as a result of ischaemia-reperfusion represents a major healthcare burden worldwide. Mortality rates from AKI in hospitalized patients are extremely high and have changed little despite decades of research and medical advances. In 1986, Murry et al. demonstrated for the first time the phenomenon of ischaemic preconditioning to protect against ischaemia-reperfusion injury ...

Long noncoding RNA AK088388 regulates autophagy through miR-30a to affect cardiomyocyte injury.

Finding ways to reduce myocardial ischemia/reperfusion injury in the process of myocardial infarction has been an area of intense study in the field of heart disease. Recent studies have shown that long noncoding RNA (lncRNA) and autophagy play important roles in cardiovascular diseases. In our study, software analysis and dual-luciferase reporter assays have shown that miR-30a has binding sites o...

Glycyrrhizin attenuates hepatic ischemia-reperfusion injury by suppressing HMGB1-dependent GSDMD-mediated kupffer cells pyroptosis.

Gasdermin D (GSDMD), a genetic substrate for inflammatory caspases, plays a central role in pyroptosis of macrophages and release of interleukin‑1β (IL-1β), but was mainly referred to microbial infection. High mobility group box-1 (HMGB1), served as an alarm molecule during various pathological process, has been widely recognized to be involved in liver ischemia-reperfusion (I/R). Glycyrrhizin...

Validation of the extended thrombolysis in cerebral infarction score in a real world cohort.

A thrombolysis in cerebral infarction (TICI) score of 2b is defined as a good recanalization result although the reperfusion may only cover 50% of the affected territory. An additional mTICI2c category was introduced to further differentiate between mTICI scores. Despite the new mTICI2c category, mTICI2b still covers a range of 50-90% reperfusion which might be too imprecise to predict neurologica...

The role of atenolol in the modulation of the expression of genes encoding pro- (caspase-1) and anti- (Bcl2L1) apoptotic proteins in endothelial cells exposed to intestinal ischemia and reperfusion in rats.

To investigate the role of atenolol in the gene expression of caspase 1 (Casp1) and Bcl2L1 on vascular endothelium of rat intestine after ischemia and reperfusion (IR).

Alprostadil attenuates myocardial ischemia/reperfusion injury by promoting antioxidant activity and eNOS activation in rats.

To investigate the effect of alprostadil on myocardial ischemia/reperfusion (I/R) in rats.

The role of ischemic preconditioning in gene expression related to inflammation in a rat model of intestinal ischemia-reperfusion injury.

To investigate the gene expression related to inflammation on mice subjected to intestinal ischemia and reperfusion (I/R) and treated with ischemic preconditioning (IPC).

Mitochondrial LonP1 protects cardiomyocytes from ischemia/reperfusion injury in vivo.

LonP1 is an essential mitochondrial protease, which is crucial for maintaining mitochondrial proteostasis and mitigating cell stress. However, the importance of LonP1 during cardiac stress is largely unknown.

Mesenchymal stem cells transfer mitochondria into cerebral microvasculature and promote recovery from ischemic stroke.

Mesenchymal stem cells can be used as a novel treatment of ischemic stroke, but their therapeutic effect and mechanism of action require further evaluation. Mitochondrial dysfunction has core functions in ischemia-reperfusion stroke injury. Our recent research has demonstrated that mesenchymal stem cells can transfer their functional mitochondria to injured endothelial cells via tunneling nanotube...

Valproic acid attenuates global cerebral ischemia/reperfusion injury in gerbils via anti-pyroptosis pathways.

Ischemic stroke is the third most common cause of death and the leading cause of disability worldwide in adults. The antiepileptic drug valproic acid (VPA) was reported to protect cerebral ischemia/reperfusion injury. However, the action mechanism of VPA in cerebral ischemia/reperfusion injury has not been fully understood. We explored the action mechanism of VPA in vivo and in vitro. Gerbils were...

Down-regulation of myocardial infarction associated transcript 1 improves myocardial ischemia-reperfusion injury in aged diabetic rats by inhibition of activation of NF-κB signaling pathway.

This study is performed to investigate the effect of long chain noncoding RNA myocardial infarction associated transcript 1 (MIRT1) on myocardial ischemia reperfusion (I/R) injury in aged diabetic rats.

The protective effect of propolis on rat ovary against ischemia-reperfusion injury: Immunohistochemical, biochemical and histopathological evaluations.

Two methods for modeling of sick sinus syndrome in rats: Ischemia reperfusion and sodium hydroxide induced injury.

The Sick Sinus Syndrome (SSS) is a serious life-threatening heart disease. It is important to establish a credible and stable sinus node damage model. In this study, we use two methods to construct an SSS damage model in rats. One is to inject sodium hydroxide to the SSS area through internal jugular vein. Another is to cause ischemia-reperfusion injury on the SSS area. 43 healthy SD rats were ran...

The protective effect of miR-377 inhibitor against renal ischemia-reperfusion injury through inhibition of inflammation and oxidative stress via a VEGF-dependent mechanism in mice.

MicroRNAs (miRNAs) play important roles in kidney development and maintenance of kidney physiological functions. MiR-377 has been reported to regulate inflammation in cardiac and cerebral ischemia. However, it remains unclear whether it has a similar function in renal ischemia/reperfusion (I/R). Using I/R model mice, miR-377 expression was determined by qRT-PCR in the renal tissues. Renal function...

Extracellular micro/nanovesicles rescue kidney from ischemia-reperfusion injury.

Acute renal failure (ARF) is a clinical challenge that is highly resistant to treatment, and its high rate of mortality is alarming. Ischemia-reperfusion injury (IRI) is the most common cause of ARF. Especially IRI is implicated in kidney transplantation and can determine graft survival. Although the exact pathophysiology of renal IRI is unknown, the role of inflammatory responses has been elucida...

Extracellular RNA, a Potential Drug Target for Alleviating Atherosclerosis, Ischemia/Reperfusion Injury and Organ Transplantation.

Extracellular RNA (eRNA), composed of mainly rRNA e.g. released upon cell injury, has previously been shown to have three main detrimental functions in the context of cardiovascular disease: (1) to promote tissue edema by activating the VEGF signal transduction cascade, disrupting endothelial tight junctions and increasing intercellular permeability; (2) to induce thrombus formation by activating ...

Post-MI treatment with G-CSF and EPO-liposome with SLX repairs infarcted myocardium through EPCs mobilization and activation of prosurvival signals in rabbits.

We investigated whether combination therapy of G-CSF and erythropoietin (EPO)-liposome with Siaryl Lewis X (SLX) is more cardioprotective than G-CSF or EPO-liposome with SLX alone. For the purpose of generating myocardial infarction (MI), rabbits underwent 30 minutes of coronary occlusion and 14 days of reperfusion. We administered saline (control group, i.v.,), G-CSF (G group, 10 μg/kg/day ...

PG490-88, a derivative of triptolide, suppresses ischemia/reperfusion-induced lung damage by maintaining tight junction barriers and targeting multiple signaling pathways.

Previous studies demonstrated that triptolide (PG490) has many anti-inflammatory and immunosuppressive effects. However, little is known about the effect of PG490-88 (a water-soluble derivative of triptolide) on ischemia/reperfusion (I/R)-induced acute lung injury. We assessed the effects of PG490-88 on I/R-induced acute lung injury in rats and on hypoxia/reoxygenation (H/R) in a line of murine ep...

Age-related difference in the effect of acute hyperglycemia on myocardial ischemia-reperfusion injury.

Age and acute hyperglycemia are known risk factors of myocardial ischemia-reperfusion injury. We investigated age-related difference in the effect of acute hyperglycemia on myocardial ischemia-reperfusion injury in Sprague-Dawley rats (young, 3 months; middle-aged, 10-12 months; and old, 20-22 months). The rats received 1.2 g/kg dextrose or normal saline and were subjected to coronary artery occlu...

Upregulation of miR-496 decreases cerebral ischemia/reperfusion injury by negatively regulating BCL2L14.

Neurological functions were seriously impaired by cerebral ischemia-reperfusion (I/R) injury following ischemic stroke and its molecular mechanism is still not fully understood. MicroRNA-496 (miR-496) has been reported to be deregulated in several diseases but it still remains unknown about the function of miR-496 in cerebral I/R injury. Here, Middle cerebral artery occlusion/reperfusion (MCAO/R) ...

Exosomes derived miR-126 attenuates oxidative stress and apoptosis from ischemia and reperfusion injury by targeting ERRFI1.

Acute myocardial infarction is one of the most threaten disease in the world. In previous studies, exosome derived miR-126 has been verified that exert an pro-angiogenic function through exosomal transfer. However, the function of miR-126 in ischemic reperfusion injury remains unknown. The aim of the study was to investigate the function and mechanism of miR-126 in ischemic reperfusion injury.

Persistent Acidosis After Reperfusion - A prognostic indicator of increased 30 day and in-hospital post-operative mortality in liver transplant recipients.

During liver transplantation, the patient is at risk of developing progressive lactic acidosis. Following reperfusion, correction of acidosis may occur. In some patients, acidosis will worsen, a phenomenon referred to as persistent acidosis after reperfusion (PAAR). We compared post-operative outcomes in patients who manifested PAAR versus those that did not. All adult patients undergoing liver tr...

Hydromorphone Postconditioning Protects Isolated Rat Heart against Ischemia-Reperfusion Injury via Activating P13K/Akt/eNOS Signaling.

Myocardial ischemia/reperfusion injury (myocardial I/R injury) has a high disability rate and mortality. Novel treatments for myocardial I/R injury are necessary.

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