keyword
MENU ▼
Read by QxMD icon Read
search

myocardial reperfusion injury

keyword
https://www.readbyqxmd.com/read/28749565/melatonin-suppresses-platelet-activation-and-function-against-cardiac-ischemia-reperfusion-injury-via-ppar%C3%AE-fundc1-mitophagy-pathways
#1
Hao Zhou, Dandan Li, Pingjun Zhu, Shunying Hu, Nan Hu, Sai Ma, Ying Zhang, Tianwen Han, Jun Ren, Feng Cao, Yundai Chen
Platelet activation is a major (patho-) physiological mechanism that underlies ischemia/reperfusion (I/R) injury. In this study, we explored the molecular signals for platelet hyperactivity and investigated the beneficial effects of melatonin on platelet reactivity in response to I/R injury. After reperfusion, peroxisome proliferator-activated receptor γ (PPARγ) was progressively downregulated in patients with acute myocardial infarction undergoing coronary artery bypass grafting (CABG) surgery and in mice with I/R injury model...
July 27, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28748611/apelin-induced-cardioprotection-against-ischemia-reperfusion-injury-roles-of-epidermal-growth-factor-and-src
#2
Anna Folino, Lisa Accomasso, Claudia Giachino, Pier Giorgio Montarolo, Gianni Losano, Pasquale Pagliaro, Raffaella Rastaldo
AIM: Apelin, the ligand of the G-protein-coupled-receptor (GPCR) APJ, exerts a postconditioning-like protection against ischemia-reperfusion injury through activation of PI3K-Akt-NO signalling. The pathway connecting APJ to PI3K is still unknown. Since other GPCR ligands act through transactivation of epidermal growth factor receptor (EGFR) via a matrix-metalloproteinase (MMP) or Src kinase, we investigated whether EGFR transactivation is involved in the following three features of apelin-induced cardioprotection: limitation of infarct size, suppression of contracture, and improvement of post-ischemic contractile recovery...
July 27, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28748322/schisandrin-b-ameliorates-myocardial-ischemia-reperfusion-injury-through-attenuation-of-endoplasmic-reticulum-stress-induced-apoptosis
#3
Wei Zhang, Zhiqing Sun, Fanhua Meng
Schisandrin B (Sch B), an active composition isolated from the fruit of Schisandra chinensis, has been proved to possess antiinflammatory, antioxidant and anti-endoplasmic reticulum (ER) stress effects in many rodent tissues. However, the exact mechanism of cardioprotective effect of Sch B still needs more study. Here, we detected the effects of Sch B on myocardial ischemia/reperfusion (I/R) injury rats. I/R injury model in this study was established by left anterior descending coronary artery ligation for 40 min followed by 1 h of reperfusion...
July 26, 2017: Inflammation
https://www.readbyqxmd.com/read/28739088/trimucrin-an-arg-gly-asp-containing-disintegrin-attenuates-myocardial-ischemia-reperfusion-injury-in-murine-by-inhibiting-platelet-function
#4
Yu-Chun Hung, Yu-Ju Kuo, Shiang-Suo Huang, Tur-Fu Huang
Trimucrin, a novel small-mass Arg-Gly-Asp (RGD)-containing disintegrin, has been demonstrated to possess anti-platelet and anti-inflammatory effect through blockade of platelet αIIbβ3 and phagocyte αvβ3 integrin. In this study, we found that the platelet-rich plasma prepared from trimucrin-treated rats platelet aggregation was diminished in response to adenosine diphosphate (ADP). We tried to determine whether trimucrin is cardioprotective in rats subjected to myocardial ischemia-reperfusion (I-R) injury...
July 21, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28736742/unique-morphological-characteristics-of-mitochondrial-subtypes-in-the-heart-the-effect-of-ischemia-and-ischemic-preconditioning
#5
Siavash Beikoghli Kalkhoran, Peter Munro, Fan Qiao, Sang-Bing Ong, Andrew R Hall, Hector Cabrera-Fuentes, Bibhas Chakraborty, William A Boisvert, Derek M Yellon, Derek J Hausenloy
RATIONALE: Three subsets of mitochondria have been described in adult cardiomyocytes - intermyofibrillar (IMF), subsarcolemmal (SSM), and perinuclear (PN). They have been shown to differ in physiology, but whether they also vary in morphological characteristics is unknown. Ischemic preconditioning (IPC) is known to prevent mitochondrial dysfunction induced by acute myocardial ischemia/reperfusion injury (IRI), but whether IPC can also modulate mitochondrial morphology is not known. AIMS: Morphological characteristics of three different subsets of adult cardiac mitochondria along with the effect of ischemia and IPC on mitochondrial morphology will be investigated...
January 2017: Discoveries
https://www.readbyqxmd.com/read/28736260/soluble-epoxide-hydrolase-activation-by-s-nitrosation-contributes-to-cardiac-ischemia-reperfusion-injury
#6
Yuzhu Ding, Yazi Li, Xu Zhang, Jinlong He, Dong Lu, Xuan Fang, Yuchen Wang, Jiaxing Wang, Yuying Zhang, Xinhua Qiao, Li-Ming Gan, Chang Chen, Yi Zhu
Cardiac ischemia-reperfusion (I/R) injury always accompanies recanalization treatment for myocardial infarction. Here we found soluble epoxide hydrolase (sEH), which metabolizes cardioprotective epoxyeicosatrienoic acids into less effective diols, was rapidly activated during myocardial reperfusion in both mouse and rat models in expression-independent manner. Similar activation was mimicked by nitric oxide (NO) donor dose-dependently in vitro, along with an obvious induction of sEH S-nitrosation, a short-term post-translational modification, which diminished in sEH Cys-141-Ala mutant...
July 20, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28734921/imaging-ischemic-and-reperfusion-injury-in-acute-myocardial-infarction-putting-the-pieces-together-with-cmr
#7
Jan Bogaert, Davide Curione, Pedro Morais, Manuel Barreiro-Perez, Sofie Tilborghs, Frederik Maes, Tom Dresselaers
No abstract text is available yet for this article.
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28732362/acute-atorvastatin-treatment-restores-the-cardioprotective-effects-of-ischemic-postconditioning-in-hyperlipidemic-rats
#8
Tao Sun, Hong-Ju Zhang, Chayakrit Krittanawong, Su Wang, Ying Tao, Zhao Li, Qiancheng Yin, Donghua Zhang, Qian Wang, Ji Huang, Jingmei Zhang, Zhizhong Li, Yutong Cheng
BACKGROUND: Ischemic Postconditioning (IPC) reduces ischemia/reperfusion (I/R) injury under normal conditions. HMG-CoA reductase inhibitors (statins), which inhibit the synthesis of mevalonate, can interfere with the cardioprotective effect of IPC. However, the beneficial role of IPC in hyperlipidemic patients, post-acute administration of statins remains unknown. This study was to determine if acute administration of atorvastatin affect the infarct size-limiting effect of IPC in hyperlipidemic rats...
July 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731128/lncrna-expression-character-associated-with-ischemic-reperfusion-injury
#9
Xiaowei Wu, Hongyi Zhu, Suhua Zhu, Maojuan Hao, Qingping Li
Ischemic reperfusion injury (IRI) contributes to morbidity and mortality worldwide and results in a poor outcome for patients suffering from myocardial infarction. Ischemic post‑conditioning (IPostC), consisting of one or several brief periods of ischemia and reperfusion, generates powerful protection against IRI. The mechanism of IPostC initiation and development has previously been investigated, however still remains to be fully elucidated. Notably, long non‑coding (lnc) RNAs have previously been demonstrated to be important in cardiovascular diseases...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28728608/influence-of-apelin-12-on-troponin-levels-and-the-rate-of-mace-in-stemi-patients
#10
Xhevdet Krasniqi, Blerim Berisha, Masar Gashi, Dardan Koçinaj, Fisnik Jashari, Josip Vincelj
BACKGROUND: During acute myocardial infarction, phosphorylated TnI levels, Ca(2+) sensitivity and ATPase activity are decreased in the myocardium, and the subsequent elevation in Ca(2+) levels activates protease I (caplain I), leading to the proteolytic degradation of troponins. Concurrently, the levels of apelin and APJ expression are increased by limiting myocardial injury. METHODS: In this prospective observational study, 100 consecutive patients with ST-elevation acute myocardial infarction were included...
July 20, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28726291/high-dose-humanin-analogue-applied-during-ischemia-exerts-cardioprotection-against-ischemia-reperfusion-injury-by-reducing-mitochondrial-dysfunction
#11
Savitree Thummasorn, Krekwit Shinlapawittayatorn, Siriporn C Chattipakorn, Nipon Chattipakorn
Although the gold standard treatment for acute myocardial infarction is reperfusion therapy, reperfusion itself can cause myocardial damage via induction of cardiac mitochondrial dysfunction. This can lead to increased myocardial infarct size, arrhythmias and left ventricular (LV) dysfunction. Recently, a newly discovered peptide, Humanin, has been shown to exert several beneficial effects including anti-oxidative and anti-apoptosis effects. We recently reported that a Humanin analogue (HNG, 84 μg/kg) given prior to cardiac ischemia exerted cardioprotection against I/R injury, but failed to do so when it was given after ischemia was induced...
July 20, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28723729/wnt-signaling-in-cardiovascular-disease-opportunities-and-challenges
#12
Austin Gay, Dwight A Towler
PURPOSE OF REVIEW: Cardiometabolic diseases increasingly afflict our aging, dysmetabolic population. Complex signals regulating low-density lipoprotein receptor-related protein (LRP) and frizzled protein family members - the plasma membrane receptors for the cadre of Wnt polypeptide morphogens - contribute to the control of cardiovascular homeostasis. RECENT FINDINGS: Both canonical (β-catenin-dependent) and noncanonical (β-catenin-independent) Wnt signaling programs control vascular smooth muscle (VSM) cell phenotypic modulation in cardiometabolic disease...
July 18, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28714516/-epigallocatechin-3-gallate-attenuates-myocardial-injury-induced-by-ischemia-reperfusion-in-diabetic-rats-and-in-h9c2-cells-under-hyperglycemic-conditions
#13
Yang Wu, Zhong-Yuan Xia, Bo Zhao, Yan Leng, Juan Dou, Qing-Tao Meng, Shao-Qing Lei, Zhi-Ze Chen, Jie Zhu
(-)-Epigallocatechin gallate (EGCG) exerts multiple beneficial effects on cardiovascular performance. In this study, we aimed to examine the effects of EGCG on diabetic cardiomyopathy during myocardial ischemia/reperfusion (I/R) injury. EGCG (100 mg/kg/day) was administered at week 6 for 2 weeks to diabetic rats following the induction of type 1 diabetes by streptozotocin (STZ). At the end of week 8, the animals were subjected to myocardial I/R injury. The EGCG-elicited structural and functional effects were analyzed...
August 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28713918/endothelial-growth-medium-suppresses-apoptosis-of-mesenchymal-stem-cells-in-vitro-via-decrease-of-mir%C3%A2-29a
#14
Qianqian Wu, Tao Fang, Min Chen, Guoxian Qi
The administration of mesenchymal stem cells (MSCs) in cases of cardiac ischemia/reperfusion injury (IRI) has been associated with a significant reduction of myocardial cell death and an effective improvement in cardiac function. However, one major limiting factor in MSCs transplantation therapy is the low survival rate of the transplanted cells. The present study aimed to demonstrate that human amnion‑derived mesenchymal stem cells (hAMSCs) cultured with endothelial growth medium (EGM‑2) exhibited reduced apoptosis when exposed to serum‑free and hypoxic conditions; and that the expression of microRNA (miR)‑29a decreased significantly...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28712398/-fasudil-attenuates-mitochondrial-injury-and-apoptosis-in-rat-model-of-myocardial-ischemia-reperfusion-injury
#15
Hongwei Ye, Guanjun Zhang, Ruiping Cao, Pinfang Kang, Zhenghong Li, Qin Gao
Objective To observe the changes of mitochondria fusion protein 2 (Mfn2) and dynamin-related protein 1 (Drp1) in the cardioprotection of fasudil, and analyze the significance. Methods Hearts isolated from male Sprague-Dawley rats were subjected to ischemia for 30 minutes (occlusion of left anterior descending artery), and continuously perfusion for 120 minutes to establish myocardial ischemia/reperfusion (I/R) injury model. The rats were divided into 3 groups: sham group, I/R group and fasudil group. The left ventricular hemodynamics were continuously recorded; lactate dehydrogenase (LDH) content was measured during reperfusion; myocardial ultrastructure was observed by electron microscopy; the protein expression of phosphorylated protein phosphatase 1 regulatory subunit 12A (p-PPP1R12A/p-MYPT1) was detected by immunohistochemistry; and the protein expressions of Mfn2, Drp1 and cleaved caspase-3 (c-caspase-3) were detected by Western blot analysis...
July 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28709719/metformin-effects-on-the-heart-and-the-cardiovascular-system-a%C3%A2-review-of-experimental-and-clinical-data
#16
REVIEW
L Nesti, A Natali
BACKGROUND: Metformin, the eldest and most widely used glucose lowering drug, is likely to be effective also on cardiac and vascular disease prevention. Nonetheless, uncertainty still exists with regard to its effects on the cardiovascular system as a whole and specifically on the myocardium, both at the organ and cellular levels. METHODS: We reviewed the available data on the cardiac and vascular effects of metformin, encompassing both in vitro, either tissue or isolated organ, and in vivo studies in experimental animals and humans, as well as the evidence generated by major clinical trials...
May 10, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28708712/extended-second-window-of-protection-of-sevoflurane-induced-preconditioning
#17
Friederike Behmenburg, Yvonne Boekholt, Patrick van Caster, Marianne Dorsch, André Heinen, Markus W Hollmann, Ragnar Huhn
Late preconditioning (LPC) can be induced by volatile anesthetics and initiates cardioprotection against ischemia/reperfusion injury for three to four days. We investigated the possibility to extend the time window of sevoflurane-induced LPC by repeated sevoflurane administration. An in vivo rat model of regional myocardial ischemia/reperfusion injury was used. Myocardial infarct size was determined by TTC staining at the end of the experiment. In the first series of experiments, male Wistar rats were randomized to five groups (each n=8)...
July 13, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28703803/micu1-protects-against-myocardial-ischemia-reperfusion-injury-and-its-control-by-the-importer-receptor-tom70
#18
Qiang Xue, Haifeng Pei, Qinshe Liu, Mingjun Zhao, Jing Sun, Erhe Gao, Xinliang Ma, Ling Tao
Mitochondrial Ca(2+) overload is a main contributor to mitochondrial damage hence cardiomyocyte death in myocardial ischemia/reperfusion (MI/R) injury. MICU1 has been recently identified as an important regulator of mitochondrial Ca(2+) homeostasis. Here we try to identify the role of MICU1 in MI/R, and to investigate whether the mitochondrial importer receptor Tom70 possesses critical roles in the mitochondrial translocation of MICU1 and MI/R. Specific small interfering RNA (20 μg) against MICU1 and Tom70, and lentivirus vectors carrying the Tom70a sequences (3...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28700817/a-novel-esterase-sensitive-prodrug-approach-for-controllable-delivery-of-persulfide-species
#19
Yueqin Zheng, Bingchen Yu, Zhen Li, Zhengnan Yuan, David J Lefer, Binghe Wang, Siming Wang, Chelsea L Organ, Rishi K Trivedi
A new strategy to deliver a well-defined persulfide species in a biological medium is described herein. Under near physiological conditions, the persulfide prodrug can be activated by an esterase to generate a "hydroxyl methyl persulfide" intermediate, which rapidly collapses to form a defined persulfide. Such persulfide prodrugs can be used either as chemical tools to study persulfide chemistry and biology or for future development as H2S-based therapeutic reagents. Using the persulfide prodrugs developed in this study, the reactivity between S-methyl methanethiosulfonate (MMTS) with persulfide was unambiguously demonstrated...
July 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28695353/cardioprotection-by-the-transfer-of-coronary-effluent-from-ischaemic-preconditioned-rat-hearts-identification-of-cardioprotective-humoral-factors
#20
Leonardo Maciel, Dahienne F de Oliveira, Giovani C Verissimo da Costa, Paulo M Bisch, Jose Hamilton Matheus Nascimento
Ischaemic preconditioning (IPC) provides myocardial resistance to ischaemia/reperfusion (I/R) injuries. The protection afforded by IPC is not limited to the target tissue but extends to remote tissues, suggesting a mechanism mediated by humoral factors. The aim of the present study was to identify the humoral factors that are responsible for the cardioprotection induced by the coronary effluent transferred from IPC to naïve hearts. Isolated rat hearts were submitted to IPC (three cycles of 5 min I/R) before 30-min global ischaemia and 60-min reperfusion...
September 2017: Basic Research in Cardiology
keyword
keyword
19545
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"