scholarly journals DJ-1 protects against cell death following acute cardiac ischemia–reperfusion injury

2014 ◽  
Vol 5 (2) ◽  
pp. e1082-e1082 ◽  
Author(s):  
R K Dongworth ◽  
U A Mukherjee ◽  
A R Hall ◽  
R Astin ◽  
S-B Ong ◽  
...  
Keyword(s):  
Cell Death ◽  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Cardiac Ischemia ◽  
Acute Cardiac Ischemia

scholarly journals The Redox Modulating Sonlicromanol Active Metabolite KH176m and the Antioxidant MPG Protect Against Short-Duration Cardiac Ischemia-Reperfusion Injury

2021 ◽  
Author(s):  
Yang Xiao ◽  
Karen Yim ◽  
Hong Zhang ◽  
Diane Bakker ◽  
Rianne Nederlof ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cell Death ◽  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Clinical Stage ◽  
Cardiac Ischemia ◽  
Oxidative Stress Marker ◽  
Thioredoxin System ◽  
Ldh Release

Abstract Purpose Sonlicromanol is a phase IIB clinical stage compound developed for treatment of mitochondrial diseases. Its active component, KH176m, functions as an antioxidant, directly scavenging reactive oxygen species (ROS), and redox activator, boosting the peroxiredoxin-thioredoxin system. Here, we examined KH176m’s potential to protect against acute cardiac ischemia-reperfusion injury (IRI), compare it with the classic antioxidant N-(2-mercaptopropionyl)-glycine (MPG), and determine whether protection depends on duration (severity) of ischemia. Methods Isolated C56Bl/6N mouse hearts were Langendorff-perfused and subjected to short (20 min) or long (30 min) ischemia, followed by reperfusion. During perfusion, hearts were treated with saline, 10 μM KH176m, or 1 mM MPG. Cardiac function, cell death (necrosis), and mitochondrial damage (cytochrome c (CytC) release) were evaluated. In additional series, the effect of KH176m treatment on the irreversible oxidative stress marker 4-hydroxy-2-nonenal (4-HNE), formed during ischemia only, was determined at 30-min reperfusion. Results During baseline conditions, both drugs reduced cardiac performance, with opposing effects on vascular resistance (increased with KH176m, decreased with MPG). For short ischemia, KH176m robustly reduced all cell death parameters: LDH release (0.2 ± 0.2 vs 0.8 ± 0.5 U/min/GWW), infarct size (15 ± 8 vs 31 ± 20%), and CytC release (168.0 ± 151.9 vs 790.8 ± 453.6 ng/min/GWW). Protection by KH176m was associated with decreased cardiac 4-HNE. MPG only reduced CytC release. Following long ischemia, IRI was doubled, and KH176m and MPG now only reduced LDH release. The reduced protection against long ischemia was associated with the inability to reduce cardiac 4-HNE. Conclusion Protection against cardiac IRI by the antioxidant KH176m is critically dependent on duration of ischemia. The data suggest that with longer ischemia, the capacity of KH176m to reduce cardiac oxidative stress is rate-limiting, irreversible ischemic oxidative damage maximally accumulates, and antioxidant protection is strongly diminished.

scholarly journals CaMKII-dependent phosphorylation of cardiac ryanodine receptors regulates cell death in cardiac ischemia/reperfusion injury

2014 ◽  
Vol 74 ◽  
pp. 274-283 ◽  
Author(s):  
Mariano N. Di Carlo ◽  
Matilde Said ◽  
Haiyun Ling ◽  
Carlos A. Valverde ◽  
Verónica C. De Giusti ◽  
...  
Keyword(s):  
Cell Death ◽  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Ryanodine Receptors ◽  
Cardiac Ischemia

scholarly journals Blockade of Hsp20 Phosphorylation Exacerbates Cardiac Ischemia/Reperfusion Injury by Suppressed Autophagy and Increased Cell Death

2009 ◽  
Vol 105 (12) ◽  
pp. 1223-1231 ◽  
Author(s):  
Jiang Qian ◽  
Xiaoping Ren ◽  
Xiaohong Wang ◽  
Pengyuan Zhang ◽  
W. Keith Jones ◽  
...  
Keyword(s):  
Cell Death ◽  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Cardiac Ischemia

scholarly journals 406-1 Hypoxia regulatable Aav-2 vector protects against cardiac ischemia/reperfusion injury

2004 ◽  
Vol 43 (5) ◽  
pp. A533
Author(s):  
Alok S Pachori ◽  
Luis G Melo ◽  
Lunan Zhang ◽  
Richard E Pratt ◽  
Victor J Dzau
Keyword(s):  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Cardiac Ischemia

scholarly journals miR-380-5p facilitates NRF2 and attenuates cerebral ischemia/reperfusion injury-induced neuronal cell death by directly targeting BACH1

2021 ◽  
Vol 12 (1) ◽  
pp. 210-217
Author(s):  
Yibiao Wang ◽  
Min Xu
Keyword(s):  
Cell Death ◽  
Cerebral Ischemia ◽  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Neuronal Cell Death ◽  
Neuronal Cell ◽  
Luciferase Assay ◽  
Neuroprotective Effects ◽  
Cerebral Ischemia Reperfusion

Abstract Background This study aimed to explore the role of miR-380-5p in cerebral ischemia/reperfusion (CIR) injury-induced neuronal cell death and the potential signaling pathway involved. Methodology Human neuroblastoma cell line SH-SY5Y cells were used in this study. Oxygen and glucose deprivation/reperfusion (OGD/R) model was used to mimic ischemia/reperfusion injury. CCK-8 assay and flow cytometry were used to examine cell survival. Quantitative real time PCR (RT-qPCR) assay and Western blotting were used to measure the change of RNA and protein expression, respectively. TargetScan and Luciferase assay was used to confirm the target of miR-380-5p. Malondialdehyde (MDA) superoxide dismutase (SOD) and glutathione peroxidase (GSHPx) were measured using commercial kits. Results miR-380-5p was downregulated in SH-SY5Y cells after OGD/R. Cell viability was increased by miR-380-5p, while cell apoptosis was reduced by miR-380-5p mimics. MDA was reduced by miR-380-5p mimics, while SOD and GSHPx were increased by miR-380-5p. Results of TargetScan and luciferase assay have showed that BACH1 is the direct target of miR-380-5p. Expression of NRF2 was upregulated after OGD/R, but was not affected by miR-380-5p. mRNA expression of HO-1 and NQO1 and ARE activity were increased by miR-380-5p. Overexpression of BACH1 reversed the antioxidant and neuroprotective effects of miR-380-5p. Conclusion miR-380-5p inhibited cell death induced by CIR injury through target BACH1 which also facilitated the activation of NRF2, indicating the antioxidant and neuroprotective effects of miR-380-5p.

scholarly journals Nanoparticle-Mediated Dual Delivery of an Antioxidant and a Peptide against the L-Type Ca2+ Channel Enables Simultaneous Reduction of Cardiac Ischemia-Reperfusion Injury

ACS Nano ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. 279-289 ◽  
Author(s):  
Naviin Hardy ◽  
Helena M. Viola ◽  
Victoria P. A. Johnstone ◽  
Tristan D. Clemons ◽  
Henrietta Cserne Szappanos ◽  
...  
Keyword(s):  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Cardiac Ischemia ◽  
Simultaneous Reduction

scholarly journals The Effect of High Dose Melatonin on Cardiac Ischemia-reperfusion Injury

2008 ◽  
Vol 49 (5) ◽  
pp. 735 ◽  
Author(s):  
Hakan Ceyran ◽  
Figen Narin ◽  
Nazmi Narin ◽  
Hülya Akgün ◽  
A. Bahar Ceyran ◽  
...  
Keyword(s):  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Cardiac Ischemia ◽  
High Dose
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