keyword
MENU ▼
Read by QxMD icon Read
search

Reperfusion myocardial injury

keyword
https://www.readbyqxmd.com/read/28551809/mitochondrial-transplantation-in-myocardial-ischemia-and-reperfusion-injury
#1
Borami Shin, Douglas B Cowan, Sitaram M Emani, Pedro J Del Nido, James D McCully
Ischemic heart disease remains the leading cause of death worldwide. Mitochondria are the power plant of the cardiomyocyte, generating more than 95% of the cardiac ATP. Complex cellular responses to myocardial ischemia converge on mitochondrial malfunction which persists and increases after reperfusion, determining the extent of cellular viability and post-ischemic functional recovery. In a quest to ameliorate various points in pathways from mitochondrial damage to myocardial necrosis, exhaustive pharmacologic and genetic tools have targeted various mediators of ischemia and reperfusion injury and procedural techniques without applicable success...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551796/nitrite-nitric-oxide-signaling-and-cardioprotection
#2
Matthias Totzeck, Ulrike B Hendgen-Cotta, Tienush Rassaf
Cardioprotective strategies to prevent damage to mitochondria in acute myocardial infarction are warranted to reduce lethal myocardial ischemia/reperfusion (I/R) injury. Mitochondrial antagonists in I/R are reactive oxygen species (ROS), deteriorated calcium signaling, permeabilization of the mitochondrial outer membrane (MOM) and deranged mitochondrial structural dynamism (fusion and fission). Nitric oxide (NO) related signaling can protect hearts from I/R. Albeit the underlying signaling is incompletely resolved, recent data point to a particular involvement of protective posttranslational modification of mitochondrial elements...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551787/mechanistic-role-of-mptp-in-ischemia-reperfusion-injury
#3
Giampaolo Morciano, Massimo Bonora, Gianluca Campo, Giorgio Aquila, Paola Rizzo, Carlotta Giorgi, Mariusz R Wieckowski, Paolo Pinton
Acute myocardial infarction (MI) is a major cause of death and disability worldwide. The treatment of choice for reducing ischemic injury and limiting infarct size (IS) in patients with ST-segment elevation MI (STEMI) is timely and effective myocardial reperfusion via primary percutaneous coronary intervention (PCI). However, myocardial reperfusion itself may induce further cardiomyocyte death, a phenomenon known as reperfusion injury (RI). The opening of a large pore in the mitochondrial membrane, namely, the mitochondrial permeability transition pore (mPTP), is widely recognized as the final step of RI and is responsible for mitochondrial and cardiomyocyte death...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551785/mitochondria-in-ischemic-heart-disease
#4
L Maximilian Buja
A core feature of ischemic heart disease is injury to cardiomyocytes (CMC). Ischemic CMC manifest the molecular mechanisms to undergo the major forms of cell injury and death, namely, oncotic necrosis, necroptosis, apoptosis and unregulated autophagy. Important modulators of ischemic injury are reperfusion and conditioning. Mitochondria have a major role in mediating the injury to CMC through membrane protein complexes referred to as death channels. Apoptosis is mediated by activation of a channel regulated by the Bcl-2 protein family leading to mitochondrial outer membrane permeabilization (MOMP)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28550240/the-role-of-gst-polymorphism-in-reperfusion-induced-oxidative-stress-inflammatory-responses-and-clinical-complications-after-surgical-and-percutaneous-coronary-intervention
#5
Örs Pintér, Péter Hardi, Tibor Nagy, Balázs Gasz, Viktoria Kovács, Endre Arató, László Sínay, László Lénárd, Gábor Jancsó
BACKGROUND: Patients having coronary artery disease treated by coronary bypass or PCI procedure are exposed to tissue damage because of the phenomenon called reperfusion injury. Reperfusion injury can be characterized/monitored by oxidative stress parameters, inflammatory markers and by post-operative complication rate. OBJECTIVE: Beyond the obvious factors determining its severity (affected myocardial mass, ischaemic time, collateral circulation etc.) we examined the GST enzyme group's most cardio selective member, GSTP1 and its genetic polymorphism if there is any genetically determined preventive effect on the above-mentioned parameters...
May 24, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28549781/nucleostemin-dysregulation-contributes-to-ischemic-vulnerability-of-diabetic-hearts-role-of-ribosomal-biogenesis
#6
Shihao Zhao, Yunlong Xia, Fuyang Zhang, Zhenyu Xiong, Yueyang Li, Wenjun Yan, Xiyao Chen, Wei Wang, Helin Wang, Erhe Gao, Yan Lee, Congye Li, Shan Wang, Ling Zhang, Ling Tao
Diabetes is a major health problem worldwide. As well-known, diabetes greatly increases cardiac vulnerability to ischemia/reperfusion (I/R) injury, but the underlying mechanisms remain elusive. Nucleostemin (NS) is a nucleolar protein that controls ribosomal biogenesis and exerts cardioprotective effects against I/R injury. However, whether NS-mediated ribosomal biogenesis regulates ischemic vulnerability of diabetic hearts remains unanswered. Utilizing myocardial I/R mouse models, we found that cardiac NS expression significantly increased in response to I/R in normal diet (ND)-fed mice...
May 23, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28545277/-effect-of-the-ischemic-post-conditioning-on-the-prevention-of-the-cardio-renal-damage-in-patients-with-acute-st-segment-elevation-myocardial-infarction-after-primary-percutaneous-coronary-intervention
#7
Y Y Wang, T Li, Y W Liu, B J Liu, X M Hu, Y Wang, W Q Gao, P Wu, L Huang, X Li, W J Peng, M Ning
Objective: To evaluate the effect of the ischemic post-conditioning (IPC) on the prevention of the cardio-renal damage in patients with acute ST-segment elevation myocardial infarction (STEMI) after primary percutaneous coronary intervention (PPCI). Methods: A total of 251 consecutive STEMI patients underwent PPCI in the heart center of Tianjin Third Central Hospital from January 2012 to June 2014 were enrolled in this prospective, randomized, control, single-blinded, clinical registry study. Patients were randomly divided into IPC group (123 cases) and control group (128 cases) with random number table...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28544853/microrna-34a-protect-myocardial-cells-against-ischemia-reperfusion-injury-through-inhibiting-autophagy-via-regulating-tnf%C3%AE-expression
#8
Haifeng Shao, Lili Yang, Li Wang, Bozan Tang, Jian Wang, Qiang Li
BACKGROUND: Ischemia/reperfusion (I/R) accompanying with the blood supply restored after myocardial infarction. Myocardial I/R injury relieves when autophagy decreased. MicroRNA-34a(miR-34a) regulate autophagy in renal I/R injury model. But whether it can affect cardiac I/R injury remains studying. This study investigated how miR-34a in protecting myocardial cells against I/R injury through inhibit autophagy via regulating tumor necrosis factor α (TNFα) . METHODS: Constructed the I/R model in vivo with Langendorff; treated Neonatal Rat cardiomyocyte to make H/R injury model in vitro with hypoxia/reoxygenation (H/R) method...
May 25, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28544332/fibroblast-growth-factor-2-protects-against-renal-ischaemia-reperfusion-injury-by-attenuating-mitochondrial-damage-and-proinflammatory-signalling
#9
Xiao-Hua Tan, Xiao-Meng Zheng, Li-Xia Yu, Jian He, Hong-Mei Zhu, Xiu-Ping Ge, Xiao-Li Ren, Fa-Qing Ye, Saverio Bellusci, Jian Xiao, Xiao-Kun Li, Jin-San Zhang
Ischaemia-reperfusion injury (I/RI) is a common cause of acute kidney injury (AKI). The molecular basis underlying I/RI-induced renal pathogenesis and measures to prevent or reverse this pathologic process remains to be resolved. Basic fibroblast growth factor (FGF2) is reported to have protective roles of myocardial infarction as well as in several other I/R related disorders. Herein we present evidence that FGF2 exhibits robust protective effect against renal histological and functional damages in a rat I/RI model...
May 24, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28544034/knock-down-of-farnesyl-pyrophosphate-synthase-protects-heart-derived-h9c2-cells-against-hypoxia-reoxygenation-induced-injury
#10
Dong-Pu Dai, Huan-Dong Wu, Jian Yang, Shi-Zhen Shen, Chen-Ze Zhao, Jie Ding, Shen-Jiang Hu
Farnesyl pyrophosphate synthase (FPPS) is a key enzyme in the mevalonate pathway. Our previous studies have indicated that cardiac-specific overexpression of FPPS induces cardiac hypertrophy and dysfunction in mice, and inhibition of FPPS prevents angiotensin (Ang) II-induced hypertrophy in cardiomyocytes. However, the role for FPPS in myocardial ischemia/reperfusion (MIR) injury is still not clear. The objective of this work was to investigate the effect of FPPS on MIR injury in H9c2 cells which were subjected to hypoxia/reoxygenation (HR) to mimic MIR...
May 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28542130/activation-of-transient-receptor-potential-vanilloid-4-involves-in-hypoxia-reoxygenation-injury-in-cardiomyocytes
#11
Qiong-Feng Wu, Cheng Qian, Ning Zhao, Qian Dong, Jing Li, Bin-Bin Wang, Lei Chen, Lixiu Yu, Bing Han, Yi-Mei Du, Yu-Hua Liao
Transient receptor potential vanilloid 4 (TRPV4) is highly expressed in heart and vessels and can be activated during myocardial ischemia/reperfusion (I/R). Recently, we found that treatment with a selective TRPV4 antagonist HC-067047 significantly reduced infarct size, decreased troponin T levels and improved cardiac function in murine model myocardial I/R. This study was undertaken to investigate the mechanism underlying TRPV4-mediated myocardial I/R injury. To mimic myocardial I/R injury, we established a hypoxia/reoxygenation (H/R) model in H9C2 cells and neonatal rat ventricle myocytes (NRVMs) in vitro...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28540163/dissecting-the-role-of-amp-activated-protein-kinase-in-human-diseases
#12
REVIEW
Jin Li, Liping Zhong, Fengzhong Wang, Haibo Zhu
AMP-activated protein kinase (AMPK), known as a sensor and a master of cellular energy balance, integrates various regulatory signals including anabolic and catabolic metabolic processes. Accompanying the application of genetic methods and a plethora of AMPK agonists, rapid progress has identified AMPK as an attractive therapeutic target for several human diseases, such as cancer, type 2 diabetes, atherosclerosis, myocardial ischemia/reperfusion injury and neurodegenerative disease. The role of AMPK in metabolic and energetic modulation both at the intracellular and whole body levels has been reviewed elsewhere...
May 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28535942/gallic-acid-increases-atrial-natriuretic-peptide-secretion-and-mechanical-dynamics-through-activation-of-pkc
#13
Xia Liu, Ying Zhang, Lan Hong, Chun-Ji Han, Bo Zhang, Shuai Zhou, Cheng-Zhe Wu, Li-Ping Liu, Xun Cui
AIMS: Gallic acid (GA) protects against myocardial ischemia-reperfusion (I/R) injury, prevents cardiac hypertrophy and fibrosis, and has anti-inflammatory activity in the heart. However, its effects in regulating atrial natriuretic peptide (ANP) secretion are unknown. The aim of this study was to determine the function of GA in regulating ANP secretion and atrial dynamics in rat atria. KEY FINDINGS: GA (0.01, 0.05, and 0.1μmol/L) significantly increased atrial ANP secretion and induced positive inotropy dose-dependently...
May 20, 2017: Life Sciences
https://www.readbyqxmd.com/read/28534645/the-mitochondria-targeting-peptide-elamipretide-diminishes-circulating-htra2-in-st-segment-elevation-myocardial-infarction
#14
Marcus Hortmann, Samuel Robinson, Moritz Mohr, Maximillian Mauler, Daniela Stallmann, Jochen Reinöhl, Daniel Duerschmied, Karlheinz Peter, James Carr, C Michael Gibson, Christoph Bode, Ingo Ahrens
BACKGROUND: The extent of myocardial damage in patients with ST-segment elevation myocardial infarction (STEMI) depends on both the time to reperfusion as well as injury induced by ischaemia-reperfusion resulting in a cascade of cellular and humoral reactions. As a consequence of ischaemia-reperfusion in the heart, the high-temperature requirement serine peptidase 2 (HtrA2) is translocated from the mitochondria to the cytosol, whereupon it induces protease activity-dependent apoptosis mediated via caspases...
May 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28534118/exercise-induced-circulating-extracellular-vesicles-protect-against-cardiac-ischemia-reperfusion-injury
#15
Yihua Bei, Tianzhao Xu, Dongchao Lv, Pujiao Yu, Jiahong Xu, Lin Che, Avash Das, John Tigges, Vassilios Toxavidis, Ionita Ghiran, Ravi Shah, Yongqin Li, Yuhui Zhang, Saumya Das, Junjie Xiao
Extracellular vesicles (EVs) serve an important function as mediators of intercellular communication. Exercise is protective for the heart, although the signaling mechanisms that mediate this cardioprotection have not been fully elucidated. Here using nano-flow cytometry, we found a rapid increase in plasma EVs in human subjects undergoing exercise stress testing. We subsequently identified that serum EVs were increased by ~1.85-fold in mice after 3-week swimming. Intramyocardial injection of equivalent quantities of EVs from exercised mice and non-exercised controls provided similar protective effects against acute ischemia/reperfusion (I/R) injury in mice...
July 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28529484/targeting-adenosine-receptors-for-the-treatment-of-cardiac-fibrosis
#16
REVIEW
Elizabeth A Vecchio, Paul J White, Lauren T May
Adenosine is a ubiquitous molecule with key regulatory and cytoprotective mechanisms at times of metabolic imbalance in the body. Among a plethora of physiological actions, adenosine has an important role in attenuating ischaemia-reperfusion injury and modulating the ensuing fibrosis and tissue remodeling following myocardial damage. Adenosine exerts these actions through interaction with four adenosine G protein-coupled receptors expressed in the heart. The adenosine A2B receptor (A2BAR) is the most abundant adenosine receptor (AR) in cardiac fibroblasts and is largely responsible for the influence of adenosine on cardiac fibrosis...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28526717/major-contribution-of-the-3-6-7-class-of-trpc-channels-to-myocardial-ischemia-reperfusion-and-cellular-hypoxia-reoxygenation-injuries
#17
Xiju He, Shoutian Li, Benju Liu, Sebastian Susperreguy, Karina Formoso, Jinghong Yao, Jinsong Kang, Anbing Shi, Lutz Birnbaumer, Yanhong Liao
The injury phase after myocardial infarcts occurs during reperfusion and is a consequence of calcium release from internal stores combined with calcium entry, leading to cell death by apoptopic and necrotic processes. The mechanism(s) by which calcium enters cells has(ve) not been identified. Here, we identify canonical transient receptor potential channels (TRPC) 3 and 6 as the cation channels through which most of the damaging calcium enters cells to trigger their death, and we describe mechanisms activated during the injury phase...
May 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28525945/the-protective-effect-of-luteolin-on-myocardial-ischemia-reperfusion-i-r-injury-through-tlr4-nf-%C3%AE%C2%BAb-nlrp3-inflammasome-pathway
#18
Xu Zhang, Qianming Du, Yan Yang, Jianing Wang, Shuai Dou, Chao Liu, Junguo Duan
The purpose of the present study was to investigate the effect of Luteolin(Lut) on myocardial ischemia reperfusion injury and explore the underlying mechanism. Myocardial ischemia reperfusion injury (I/R) model was induced with 30min of left anterior descending (LAD) occlusion followed by 24h of reperfusion. In vivo, the rats were randomly divided into 5 groups: (1)Sham, (2)I/R, (3)I/R+Lut(40mg/kg), (4)I/R+Lut(80mg/kg) and (5)I/R+Lut(160mg/kg). In vitro, the H9c2 cells were assigned to five groups: (1)control, (2)hypoxia-reoxygenation(H/R), (3)H/R+Lut(5μM), (4)H/R+Lut(10μM) and (5)H/R+Lut(20μM)...
May 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28525795/the-role-of-secretory-phospholipases-as-therapeutic-targets-for-the-treatment-of-myocardial-ischemia-reperfusion-injury
#19
REVIEW
Sriram Ravindran, Gino A Kurian
Myocardial reperfusion injury is a consequence of restoration of blood flow post ischemia. It is a complex process involving an acute inflammatory response activated by cytokines, chemokines, growth factors, and mediated by free radicals, calcium overload leading to mitochondrial dysfunction. Secretory phospholipases (sPLA2) are a group of pro-inflammatory molecules associated with diseases such as atherosclerosis, which increase the risk of reperfusion injury. This acute response leads to breakdown of phospholipids such as cardiolipin, found in the mitochondrial inner membrane, leading to disruption of energy producing enzymes of the electron transport chain...
May 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28524859/mesenchymal-stem-cells-sense-mitochondria-released-from-damaged-cells-as-danger-signals-to-activate-their-rescue-properties
#20
Meriem Mahrouf-Yorgov, Lionel Augeul, Claire Crola Da Silva, Maud Jourdan, Muriel Rigolet, Sylvie Manin, René Ferrera, Michel Ovize, Adeline Henry, Aurélie Guguin, Jean-Paul Meningaud, Jean-Luc Dubois-Randé, Roberto Motterlini, Roberta Foresti, Anne-Marie Rodriguez
Mesenchymal stem cells (MSCs) protect tissues against cell death induced by ischemia/reperfusion insults. This therapeutic effect seems to be controlled by physiological cues released by the local microenvironment following injury. Recent lines of evidence indicate that MSC can communicate with their microenvironment through bidirectional exchanges of mitochondria. In particular, in vitro and in vivo studies report that MSCs rescue injured cells through delivery of their own mitochondria. However, the role of mitochondria conveyed from somatic cells to MSC remains unknown...
May 19, 2017: Cell Death and Differentiation
keyword
keyword
47227
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"