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https://www.readbyqxmd.com/read/28544853/microrna-34a-protect-myocardial-cells-against-ischemia-reperfusion-injury-through-inhibiting-autophagy-via-regulating-tnf%C3%AE-expression
#1
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
#2
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/28525856/oleuropein-prevents-the-development-of-experimental-autoimmune-myocarditis-in-rats
#3
Jia-Ying Zhang, Zheng Yang, Kun Fang, Zhan-Li Shi, Dan-Hong Ren, Jing Sun
Oleuropein (OLE) is a natural secoiridoid that is derived from Olea europaea. OLE possesses cardioprotective effects in experimental models of hypertension, myocardial infarction, atherosclerosis and hyperlipidaemia. In the present study, the effects of OLE on experimental autoimmune myocarditis (EAM) were evaluated. EAM in rats were induced by subcutaneous injections of porcine cardiac myosin. Cardiac function parameters, myocardial pathology, myocardial inflammatory cell infiltration and nuclear factor kappa-B (NF-κB) expression were measured...
May 16, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28524834/wild-type-p53-induced-phosphatase-1-deficiency-exacerbates-myocardial-infarction-induced-ischemic-injury
#4
Ke-Mei Liu, Hai-Hong Zhang, Ya-Nan Wang, Lian-Mei Wang, Hong-Yu Chen, Cai-Feng Long, Lian-Feng Zhang, Hong-Bing Zhang, Hong-Bing Yan
BACKGROUND: Myocardial infarction (MI) is a major disease burden. Wild-type p53-induced phosphatase 1 (Wip1) has been studied extensively in the context of cancer and the regulation of different types of stem cells, but the role of Wip1 in cardiac adaptation to MI is unknown. We investigated the significance of Wip1 in a mouse model of MI. METHODS: The study began in June 2014 and was completed in July 2016. We compared Wip1-knockout (Wip1-KO) mice and wild-type (WT) mice to determine changes in cardiac function and survival in response to MI...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28513852/effect-of-pentoxifylline-in-ameliorating-myocardial-injury-in-patients-with-myocardial-infarction-undergoing-thrombolytic-therapy-a-pilot-randomized-clinical-trial
#5
Hossein Namdar, Rasoul Zohori, Naser Aslanabadi, Taher Entezari-Maleki
Cell death following acute myocardial infarction (MI) is the hallmark pathology of cardiovascular disease, leading to considerable mortality and morbidity. Platelet and neutrophil activation and inflammatory cytokines, prominently TNF-α, play an important role in the development of cell death. Because pentoxifylline inhibits platelet and neutrophil activation and reduces TNF-α, this study was performed to assess the potential benefit of pentoxifylline in the reduction of myocardial injury following acute MI...
May 17, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28485794/effects-of-tumor-necrosis-factor-and-e-selectin-on-coronary-artery-flow
#6
W-B Liu, X-H Han, Y-Y Guo, D-M Zhang, F-J Tang, L Zhao, L-L Ji, F-M Guo
OBJECTIVE: The aim of the study is to investigate the correlation between tumor necrosis factor (TNF-α), E-selectin and coronary artery flow following myocardial ischemia-reperfusion model (IR) in Yorkshire pigs. MATERIALS AND METHODS: Establishment of IR model in pigs. Following the injury model, Experiment group was administrated intravenously Shenfu injection solution (SFI, 1 mL/kg). The control group received the same amount of saline. After 30 min of blood reflux, thrombolysis in myocardial infarction frame count (TFC) was recorded following surgery...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28472020/obestatin-plays-beneficial-role-in-cardiomyocyte-injury-induced-by-ischemia-reperfusion-in-vivo-and-in-vitro
#7
Qin Zhang, Xin-Wei Dong, Jia-Ying Xia, Ke-Ying Xu, Zhe-Rong Xu
BACKGROUND Obestatin, primarily recognized as a peptide within the gastrointestinal system, has been shown to benefit the cardiovascular system. We designed this experiment to study the protective role and underlying mechanism of obestatin against ischemia-reperfusion(I/R) injury in myocardial cells. MATERIAL AND METHODS In an In vivo experiment, LAD was ligated for 0.5 h and then opened for reperfusion with obestatin for 24 h. Then, the infarction area was shown with TTC staining, and inflammation factors in serum were analyzed by qRT-PCR...
May 4, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28460644/apoptosis-in-ischemic-heart-disease
#8
REVIEW
Elena Teringova, Petr Tousek
Apoptosis plays an important role in the myocardial loss after acute myocardial infarction and participates in the process of subsequent left ventricular remodeling and development of symptomatic heart failure. Finding a sensitive apoptotic marker that would help in prognostic stratification of patients after acute myocardial infarction and offer new therapeutic strategies is thus of a great importance. Several studies suggest that tumor necrosis factor-related apoptosis inducing ligand (TRAIL) represents a very promising marker of prognosis in patients with acute myocardial infarction...
May 1, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28453789/serum-tumor-necrosis-factor-receptor-1-is-associated-with-trajectories-of-functional-status-the-northern-manhattan-study
#9
Mandip S Dhamoon, Ying-Kuen Cheung, Yeseon P Moon, Clinton B Wright, Joshua Z Willey, Ralph L Sacco, Mitchell S V Elkind
We hypothesized that tumor necrosis factor receptor-1 (TNFR1) levels are associated with long-term trajectories of functional status independently of vascular risk factors and stroke and myocardial infarction (MI) occurring during follow-up. In the Northern Manhattan Study, stroke-free individuals in northern Manhattan aged >40 years had annual assessments with the Barthel index (BI) for a median of 13 years. Baseline demographics, risk factors, and laboratory studies included TNFR1 (n = 1,863). Generalized estimating equation models estimated standardized associations between TNFR1 and 1) baseline functional status and 2) change in function over time, adjusting for demographics, vascular risk factors, social variables, cognition, and depression, and stroke and MI occurring during follow-up...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28450225/ablation-il-33-gene-exacerbate-myocardial-remodeling-in-mice-with-heart-failure-induced-by-mechanical-stress
#10
Punniyakoti T Veeraveedu, Shoji Sanada, Keiji Okuda, Hai Ying Fu, Takashi Matsuzaki, Ryo Araki, Masaki Yamato, Koubun Yasuda, Yasushi Sakata, Tomohiro Yoshimoto, Tetsuo Minamino
BACKGROUND AND PURPOSE: ST2 is one of the interleukin (IL)-1 receptor family member comprising of membrane-bound (ST2L) and soluble (sST2) isoforms. Clinical trials have revealed that serum sST2 levels predict outcome in patient with myocardial infarction or chronic heart failure (HF). Meanwhile, we and others have reported that ablation of ST2 caused exaggerated cardiac remodeling in both ischemic and non-ischemic HF. Here, we tested whether IL-33, the ligand for ST2, protects myocardium against HF induced by mechanical overload using ligand specific knockout (IL-33(-/-)) mice...
April 24, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28445445/cardioprotective-effects-of-malvidin-against-isoproterenol-induced-myocardial-infarction-in-rats-a-mechanistic-study
#11
Hui Wei, Hui Li, Shu-Ping Wan, Qiu-Tang Zeng, Long-Xian Cheng, Li-Li Jiang, Yu-Dong Peng
BACKGROUND Malvidin (alvidin-3-glucoside) is a polyphenol that belongs to the class of natural anthocyanin, which is abundantly found in red wines, colored fruits, and the skin of red grapes. Therefore, the current investigation was intended to evaluate the effect of malvidin against myocardial infarction induced by isoproterenol in the rats. MATERIAL AND METHODS The cardioprotective effects was assessed by determining the effect of malvidin on the activities of endogenous antioxidants - catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH) - and on the levels of lipid peroxidation and serum marker enzymes...
April 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28426774/the-role-of-air-pollution-in-myocardial-remodeling
#12
A M de Oliveira-Fonoff, C Mady, F G Pessoa, K C B Fonseca, V M C Salemi, F Fernandes, P H N Saldiva, F J A Ramires
BACKGROUND: Excessive air pollution in urban environments can impact morbidity and mortality. The authors evaluated the role of particulate matter2.5 (PM2.5) in structural, geometric, and functional remodeling in hearts, using an experimental model of myocardial infarction. METHODS AND FINDINGS: Seventy-five rats were divided into 5 groups: control (CG), CG exposed to PM2.5 pollution (CGP), myocardial infarcted group (MI), infarcted group immediately exposed to pollution (IGP-I), and infarcted group previously exposed to pollution and kept exposed after infarction (IGP-II)...
2017: PloS One
https://www.readbyqxmd.com/read/28414590/reduction-in-cd16-cd56-and-cd16-cd3-cd56-natural-killer-cells-in-coronary-artery-disease
#13
Nasimudeen R Jabir, Chelapram K Firoz, Farid Ahmed, Mohammad A Kamal, Salwa Hindawi, Ghazi A Damanhouri, Hussein A Almehdar, Shams Tabrez
BACKGROUND: Natural killer (NK) cells are the potential modulators of inflammatory reactions that exert several unique biological effects and could lead to future adverse events of coronary artery disease (CAD). HYPOTHESIS: The purpose of this study was to find out the possible association of modulation in NK cell, TNK cells, T cells, B cells, and tumor necrosis factor alpha (TNF-α) in CAD patients and various forms of myocardial infarction. METHODS: The present study included total 190 subjects (98 confirmed CAD patients both men and women and 92 healthy control individuals)...
April 17, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28410530/metformin-attenuated-endotoxin-induced-acute-myocarditis-via-activating-ampk
#14
Gang Liu, Kejia Wu, Li Zhang, Jie Dai, Wei Huang, Ling Lin, Pu Ge, Fuling Luo, Han Lei
Metformin is a widely used anti-diabetic drug and increasing evidence suggests that metformin have profound cardioprotective effects under both diabetic and non-diabetic situations. The protective benefits of metformin have been proved in diabetic patients with cardiovascular complications and in experimental animals with myocardial infarction and cardiac hypertrophy. In the present study, we found that treatment with metformin inhibited the cardiac expression of pro-inflammatory cytokines including tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β) and interleukin 6 (IL-6) in endotoxin-challenged mice...
April 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28382073/at1-receptor-modulator-attenuates-the-hypercholesterolemia-induced-impairment-of-the-myocardial-ischemic-post-conditioning-benefits
#15
Yun-Wei Li, Yan-Ming Li, Yan Hon, Qi-Lin Wan, Rui-Li He, Zhi-Zhong Wang, Cui-Hua Zhao
BACKGROUND AND OBJECTIVES: Ischemic post-conditioning (PostC) has been demonstrated as a novel strategy to harness nature's protection against myocardial ischemia-reperfusion (I/R). Hypercholesterolemia (HC) has been reported to block the effect of PostC on the heart. Angiotensin II type-1 (AT1) modulators have shown benefits in myocardial ischemia. The present study investigates the effect of a novel inhibitor of AT1, azilsartan in PostC of the heart of normocholesterolemic (NC) and HC rats...
March 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28378031/removal-of-epicardial-adipose-tissue-after-myocardial-infarction-improves-cardiac-function
#16
H-X Chang, X-J Zhao, Q-L Zhu, Q Hou, Y Li
BACKGROUND: The aim of this study was to assess the role of lipolysis of epicardial adipose tissue (EAT) in cardiac function after myocardial infarction (MI). METHODS: We used a rat model of MI with or without EAT removal to study the effects of EAT lipolysis on cardiovascular function. Echocardiography and cardiac catheterization were used to determine cardiac function, and infarct size and histopathology specimens were analyzed in postmortem sections. Inflammatory responses were evaluated via flow cytometry and Elisa analyses...
April 4, 2017: Herz
https://www.readbyqxmd.com/read/28373886/prevention-of-ami-induced-ventricular-remodeling-inhibitory-effects-of-heart-protecting-musk-pill-on-il-6-and-tnf-alpha
#17
Wei Cen, Zhiliang Chen, Ning Gu, Ralph Hoppe
Heart-Protecting Musk Pill (HMP) is a Traditional Chinese Medicine (TCM) that has been used for the prevention and treatment of coronary heart disease in clinic. The current study investigated the effect of HMP on the concentrations of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) and observed the relationship between level changes of inflammatory cytokines and ventricular remodeling in rats with acute myocardial infarction (AMI). Animal models of AMI were made by coronary artery ligation in Sprague-Dawley (SD) rats...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28367419/lavandula-reduces-heart-injury-via-attenuating-tumor-necrosis-factor-alpha-and-oxidative-stress-in-a-rat-model-of-infarct-like-myocardial-injury
#18
Jafar Sadeghzadeh, Abedin Vakili, Ahmad Reza Bandegi, Hamid Reza Sameni, Mahdi Zahedi Khorasani, Mohsen Darabian
OBJECTIVE: Lavender is used in herbal medicine for different therapeutic purposes. Nonetheless, potential therapeutic effects of this plant in ischemic heart disease and its possible mechanisms remain to be investigated. MATERIALS AND METHODS: In this experimental study, lavender oil at doses of 200, 400 or 800 mg/kg was administered through gastric gavage for 14 days before infarct-like myocardial injury (MI). The carotid artery and left ventricle were cannulated to record arterial blood pressure (BP) and cardiac function...
April 2017: Cell Journal
https://www.readbyqxmd.com/read/28352306/risk-of-cardiovascular-disease-in-inflammatory-bowel-disease
#19
Ping Wu, Fangyuan Jia, Bao Zhang, Peiying Zhang
Cardiovascular disease (CVD) can arise because of chronic inflammation and inflammatory bowel disease (IBD) is one such disease where the risk for CVD and eventual heart failure is increased considerably. The incidence of IBD, which refers to both ulcerative colitis and Crohn's disease, has been on the increase in several countries and is a potential risk factor for CVD. Although IBD can potentially cause venous thromboembolism, its significance in arterial stiffening, atherosclerosis, ischemic heart disease and myocardial infarction is only being realized now and it is currently under debate...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28350318/overexpression-of-exosomal-cardioprotective-mirnas-mitigates-hypoxia-induced-h9c2-cells-apoptosis
#20
Jinwei Zhang, Jideng Ma, Keren Long, Wanling Qiu, Yujie Wang, Zihui Hu, Can Liu, Yi Luo, Anan Jiang, Long Jin, Qianzi Tang, Xun Wang, Xuewei Li, Mingzhou Li
Recent evidence suggests that hypoxia caused by acute myocardial infarction can induce cardiomyocyte apoptosis. Exosomes are signalling mediators that contribute to intercellular communication by transporting cytosolic components including miRNAs, mRNAs, and proteins. However, the systemic regulation and function of exosomal miRNAs in hypoxic cardiomyocytes are currently not well understood. Here, we used small RNA sequencing to investigate the effects of hypoxia stress on miRNAome of rat cardiomyoblast cells (H9c2) and corresponding exosomes...
March 28, 2017: International Journal of Molecular Sciences
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