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https://www.readbyqxmd.com/read/27907155/outer-balloon-ligation-increases-success-rate-of-ischemia-reperfusion-injury-model-in-mice
#1
Fengwang Hu, Nana Zhai, Wen Gao, Pei Wu, Yuanyuan Luo, Defeng Pan, Yang Liu, Dongye Li
BACKGROUND: Coronary artery disease is a growing public health problem and a major cause of morbidity and mortality. Experimental animal models provide valuable tools for studying myocardial ischemia reperfusion (I/R) injury in vivo. OBJECTIVE: The purpose of this study was to describe a new method (outer balloon ligation) to induce myocardial I/R injury in mice. METHODS: Ninety-nine male C57BL/6J mice were randomly divided into three groups: sham group, classic method group (I/R-C) and the new method group (I/R-N)...
2016: PloS One
https://www.readbyqxmd.com/read/27882145/microrna-22-attenuates-myocardial-ischemia-reperfusion-injury-via-an-anti-inflammatory-mechanism-in-rats
#2
Jian Yang, Zhixing Fan, Jun Yang, Jiawang Ding, Chaojun Yang, Lihua Chen
Previous studies have reported that microRNA-22 (miR-22) may be implicated in ischemia-reperfusion (I/R)-induced myocardial injury. Our previously published data also demonstrated that miR-22 may protect against myocardial I/R injury via anti-apoptosis in rats by targeting cAMP response element-binding protein binding protein (CBP). However, the specific function of miR-22 in myocardial I/R injury is far from fully elucidated. The present study was designed to investigate another cardioprotective signaling mechanism of miR-22 in myocardial I/R injury...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881030/the-effect-of-tumour-necrosis-factor-inhibitor-therapy-on-the-incidence-of-myocardial-infarction-in-patients-with-psoriasis-a-retrospective-study
#3
Dalia Shaaban, Nawaf Al-Mutairi
BACKGROUND: Psoriasis has been shown to be associated with increased incidence of myocardial infarction (MI). The data on the effect of tumour necrosis factor (TNF) inhibitors on MI in psoriasis are scarce. OBJECTIVE: To evaluate the effect of TNF inhibitors on the risk of MI in psoriasis patients compared with methotrexate (MTX) and topical agents. METHODS: Data was obtained from the Electronic Health Records database of Farwaniya Hospital from psoriasis patients seen from January 2008 to December 2014...
November 24, 2016: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27878246/luteolin-protects-mice-from-severe-acute-pancreatitis-by-exerting-ho-1-mediated-anti-inflammatory-and-antioxidant-effects
#4
Jie Xiong, Kezhou Wang, Chunxiao Yuan, Rong Xing, Jianbo Ni, Guoyong Hu, Fengling Chen, Xingpeng Wang
Reseda odorata L. has long been used in traditional Asian medicine for the treatment of diseases associated with oxidative injury and acute inflammation, such as endotoxemia, acute lung injury, acute myocardial infarction and hepatitis. Luteolin, the main component of Reseda odorata L., which is also widely found in many natural herbs and vege-tables, has been shown to induce heme oxygenase-1 (HO-1) expression to exert anti-inflammatory and antioxidant effects. In this study, we aimed to examine the effects of luteolin on mice with severe acute pancreatitis (SAP), and to explore the underlying mechanisms...
November 22, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27874107/the-effect-of-oral-consumption-of-probiotics-in-prevention-of-heart-injury-in-a-rat-myocardial-infarction-model-a-histopathological-hemodynamic-and-biochemical-evaluation
#5
Jafar Sadeghzadeh, Abedin Vakili, Hamid Reza Sameni, Mahdi Shadnoush, Ahmad-Reza Bandegi, Mahdi Zahedi Khorasani
BACKGROUND: Despite the emerging evidence on beneficial effects of probiotics on the cardiovascular system, their impact on the management of ischemic heart diseases and its possible mechanism have not been elucidated. METHODS: Four viable probiotics bacterial strains, including Bifidobacterium breve, Lactobacillus casei, Lactobacillus bulgaricus and Lactobacillus acidophilus, at the concentrations of 2×106 colony-forming units/ml were orally administered to the rats daily for 14 days before the induction of infarct-like myocardial injury using isoproterenol...
November 22, 2016: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/27864310/low-tlr7-gene-expression-in-atherosclerotic-plaques-is-associated-with-major-adverse-cardio-and-cerebrovascular-events
#6
Glykeria Karadimou, Lasse Folkersen, Martin Berg, Ljubica Perisic, Andrea Discacciati, Joy Roy, Göran K Hansson, Jonas Persson, Gabrielle Paulsson-Berne
AIMS: Processes in the development of atherosclerotic lesions can lead to plaque rupture or erosion, which can in turn elicit myocardial infarction or ischaemic stroke. The aims of this study were to determine whether Toll-like receptor 7 (TLR7) gene expression levels influence patient outcome and to explore the mechanisms linked to TLR7 expression in atherosclerosis. METHODS AND RESULTS: Atherosclerotic plaques were removed by carotid endarterectomy (CEA) and subjected to gene array expression analysis (n=123)...
November 15, 2016: Cardiovascular Research
https://www.readbyqxmd.com/read/27864105/epigallocatechin-3-gallate-prevents-cardiac-apoptosis-by-modulating-the-intrinsic-apoptotic-pathway-in-isoproterenol-induced-myocardial-infarction
#7
Azza I Othman, Magda M Elkomy, M A El-Missiry, Mohammed Dardor
(-)Epigallocatechin-gallate (EGCG) is an emerging natural therapy. This study examined the cardioprotective effect of EGCG on isoproterenol-induced myocardial damage and apoptosis and EGCG's role in modulating the expression of apoptotic signaling proteins. Experimental myocardial infarction was induced in albino Westar rats by isoproterenol (ISO) administration (100mg/kg, s.c.) at an interval of 24h on the 6th and 7th day. EGCG (15mg/kg, i.p.) was administered seven days before ISO. EGCG pretreatment significantly showed an anti-lipidemic effect and protected the cell membrane integrity, as shown by the blocking of changes in serum levels of CK-MB, LDH, ALP, ALT and troponin T...
November 15, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27849187/inhibition-of-5-lipoxygenase-by-zileuton-in-a-rat-model-of-myocardial-infarction
#8
Leyla Abueid, Ünal Uslu, Alev Cumbul, Ayliz Velioğlu Öğünç, Feriha Ercan, İnci Alican
OBJECTIVE: The goal of the present study was to investigate the effects of 5-lipoxygenase (5-LOX) inhibition, alone and with cyclooxygenase (COX) inhibitors, on inflammatory parameters and apoptosis in ischemia/reperfusion (I/R)-induced myocardial damage in rats. For this purpose, zileuton, a selective and potent inhibitor of 5-LOX, resulting in suppression leukotriene production, was used. METHODS: Male Wistar rats (200-250 g; n=12 per group) were used in the study...
November 10, 2016: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/27833128/qishen-granules-inhibit-myocardial-inflammation-injury-through-regulating-arachidonic-acid-metabolism
#9
Chun Li, Jing Wang, Qiyan Wang, Yi Zhang, Na Zhang, Linghui Lu, Yan Wu, Qian Zhang, Wei Wang, Yong Wang, Pengfei Tu
Qishen granules (QSG), a traditional Chinese medicine, have been prescribed widely in the treatment of coronary heart diseases. Previous studies demonstrated that QSG had anti-inflammatory and cardio-protective effects in mice with acute myocardial infarction (AMI). However, the mechanisms by which QSG attenuate inflammation and prevent post-AMI heart failure (HF) are still unclear. In this study, we explored the anti-inflammatory mechanisms of QSG by in vitro and in vivo experiments. A novel inflammatory injury model of H9C2 cells was induced by lipopolysaccharide (LPS)-stimulated macrophage-conditioned media (CM)...
November 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27823896/impact-of-exercise-training-associated-to-pyridostigmine-treatment-on-autonomic-function-and-inflammatory-profile-after-myocardial-infarction-in-rats
#10
Daniele J Feriani, Gabriel I H Souza, Nicolle M Carrozzi, Cristiano Mostarda, Paulo M M Dourado, Fernanda M Consolim-Colombo, Kátia De Angelis, Heitor Moreno, Maria Cláudia Irigoyen, Bruno Rodrigues
BACKGROUND: The effects of exercise training (ET) associated with pyridostigmine bromide (PYR) treatment on cardiac and autonomic function, as well as on inflammatory profile after myocardial infarction (MI), are unclear. METHODS: Male Wistar rats were randomly assigned to: control (C); sedentary+infarcted (I); sedentary+infarcted treated with PYR (IP); infarcted submitted to aerobic exercise training (IT); and infarcted submitted to treatment with PYR and aerobic exercise training (ITP)...
October 26, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27805242/relationship-between-site-of-myocardial-infarction-left-ventricular-function-and-cytokine-levels-in-patients-undergoing-coronary-artery-surgery
#11
Ilker Kiris, Sahin Kapan, Cuneyt Narin, Mehmet Ozaydın, Medine Cumhur Cure, Recep Sutcu, Huseyin Okutan
BACKGROUND: The purpose of this study was to examine the relationship between left ventricular (LV) function, cytokine levels and site of myocardial infarction (MI) in patients undergoing coronary artery bypass grafting (CABG). METHODS: Sixty patients undergoing CABG were divided into three groups (n = 20) according to their history of site of myocardial infarction (MI): no previous MI, anterior MI and posterior/inferior MI. In the pre-operative period, detailed analysis of LV function was done by transthoracic echocardiography...
September 2016: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/27803790/total-flavonoid-extract-from-coreopsis-tinctoria-nutt-protects-rats-against-myocardial-ischemia-reperfusion-injury
#12
Ya Zhang, Changsheng Yuan, He Fang, Jia Li, Shanshan Su, Wen Chen
OBJECTIVES: This study aimed to evaluate the protective effects of total flavonoid extract from Coreopsis tinctoria Nutt. (CTF) against myocardial ischemia/reperfusion injury (MIRI) using an isolated Langendorff rat heart model. MATERIALS AND METHODS: Left ventricular developed pressure (LVDP) and the maximum rate of rise and fall of LV pressure (±dp/dtmax) were recorded. Cardiac injury was assessed by analyzing lactate dehydrogenase (LDH) and creatine kinase (CK) released in the coronary effluent...
September 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27797128/long-non-coding-rna-miat-knockdown-promotes-osteogenic-differentiation-of-human-adipose-derived-stem-cells
#13
Chanyuan Jin, Yunfei Zheng, Yiping Huang, Yunsong Liu, Lingfei Jia, Yongsheng Zhou
Recently, long non-coding RNAs (lncRNAs) have emerged as critical players in gene regulation for multiple biological processes. However, their roles and functions in human adipose-derived stem cells (hASCs) differentiation remain unclear. In the present study, we investigated the role of lncRNA myocardial infarction-associated transcript (MIAT) in the osteogenic differentiation of hASCs. We found that the expression of MIAT was downregulated in a time-dependent manner during hASCs osteoinduction. MIAT knockdown promoted osteogenic differentiation of hASCs both in vitro and in vivo...
October 31, 2016: Cell Biology International
https://www.readbyqxmd.com/read/27795806/c1q-tnf-related-protein-9-protects-diabetic-rat-heart-against-ischemia-reperfusion-injury-role-of-endoplasmic-reticulum-stress
#14
Sanxing Bai, Liang Cheng, Yang Yang, Chongxi Fan, Dajun Zhao, Zhigang Qin, Xiao Feng, Lin Zhao, Jipeng Ma, Xiaowu Wang, Jian Yang, Xuezeng Xu, Dinghua Yi, Wei Yi
As a newly identified adiponectin paralog, C1q/TNF-related protein 9 (CTRP9) reduces myocardial ischemia reperfusion (IR) injury through partially understood mechanisms. In the present study, we sought to identify the role of endoplasmic reticulum stress (ERS) in CTRP9 induced cardioprotection in diabetic heart. Isolated hearts from high-fat-diet (HFD) induced type 2 diabetic Sprague-Dawley rats were subjected to ex vivo IR protocol via a Langendorff apparatus at the presence of globular CTRP9. CTRP9 significantly improved post-IR heart function and reduced cardiac infarction, cardiomyocytes apoptosis, Caspase-3, Caspase-9, Caspase-12, TNF-α expression, and lactate dehydrogenase activity...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27777380/aging-dysregulates-d-and-e-series-resolvins-to-modulate-cardiosplenic-and-cardiorenal-network-following-myocardial-infarction
#15
Ganesh V Halade, Vasundhara Kain, Laurence M Black, Sumanth D Prabhu, Kevin A Ingle
Post-myocardial infarction (MI), overactive inflammation is the hallmark of aging, however, the mechanism is unclear. We hypothesized that excess influx of omega 6 fatty acids may impair resolution, thus impacting the cardiosplenic and cardiorenal network post-MI. Young and aging mice were fed on standard lab chow (LC) and excess fatty acid (safflower oil; SO)-enriched diet for 2 months and were then subjected to MI surgery. Despite similar infarct areas and left ventricle (LV) dysfunction post-MI, splenic mass spectrometry data revealed higher levels of arachidonic acid (AA) derived pro-inflammatory metabolites in young-SO, but minimal formation of docosanoids, D- and E- series resolvins in SO-fed aged mice...
October 18, 2016: Aging
https://www.readbyqxmd.com/read/27765360/kampeferol-protects-against-oxidative-stress-and-apoptotic-damage-in-experimental-model-of-isoproterenol-induced-cardiac-toxicity-in-rats
#16
Kapil Suchal, Salma Malik, Nanda Gamad, Rajiv Kumar Malhotra, Sameer N Goyal, Jagriti Bhatia, Dharamvir Singh Arya
BACKGROUND: Myocardial infarction (MI) continues to be associated with high morbidity and mortality worldwide despite the availability of current therapeutic modalities. Kaempferol (KMP), a dietary flavonoid, possesses good antioxidant, immunomodulatory and anti-apoptotic properties and has been evaluated in the present study for its role in mitigating myocardial injury following MI. PURPOSE: In this study, the ability of KMP to protect heart against isoproterenol (ISO) induced oxidative stress and myocardial infarction was evaluated...
November 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27749234/sj%C3%A3-gren-s-syndrome-managed-care-data-from-a-large-united-states-population-highlight-real-world-health-care-burden-and-lack-of-treatment-options
#17
Julie A Birt, YingMeei Tan, Neelufar Mozaffarian
OBJECTIVES: To better understand the real-world characteristics and costs of Sjögren's syndrome (SS). METHODS: Analysing the MarketScan Commercial Claims database from Jan. 1, 2006 to Dec. 31, 2011, we identified 10,414 patients ≥18 years old newly diagnosed with SS. Patient characteristics, drugs (commonly used for SS), resource utilisation, and medical costs were evaluated for 12 months pre- and post-diagnosis. RESULTS: Mean age was 55 years; 90% were female...
October 7, 2016: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/27731393/hydroxysafflor-yellow-a-alleviates-myocardial-ischemia-reperfusion-in-hyperlipidemic-animals-through-the-suppression-of-tlr4-signaling
#18
Dan Han, Jie Wei, Rui Zhang, Wenhuan Ma, Chen Shen, Yidong Feng, Nian Xia, Dan Xu, Dongcheng Cai, Yunman Li, Weirong Fang
Hyperlipidemia aggravates myocardial ischemia/reperfusion (MI/R) injury through stimulating excessive inflammatory response. Therefore, blockade of inflammatory signal is a potential therapeutic management for MI/R complicated with hyperlipidemia. Hydroxysafflor yellow A (HSYA, a monomer extracted from Carthamus tinctorius L.), was studied in this article to address that the regulation of inflammatory signal would alleviate MI/R combined with hyperlipidemia injury. High-fat diet induced hyperlipidemia worsened MI/R mediated heart injury (elevation of infarct size, CK-MB and LDH activity), activated TLR4 over-expression in hearts, released inflammatory cytokines (LPS, TNF-α and IL-1β) excessively...
October 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27725864/tweak-protects-cardiomyocyte-against-apoptosis-in-a-pi3k-akt-pathway-dependent-manner
#19
Bin Yang, Ping Yan, Hui Gong, Lin Zuo, Ying Shi, Jian Guo, Rui Guo, Jun Xie, Bao Li
Myocyte apoptosis is a key determinant of cardiac recovery and prognosis of patients with acute myocardial infarction (AMI). Tumor necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK), a member of TNF superfamily, is a pro-inflammatory and pro-angiogenic cytokine implicated in physiological tissue regeneration and wound repair and is closely related to cardiac remodeling, dysfunction and fibrosis. However, the role of TWEAK and its receptor Fn14 in the cardiomyocyte apoptosis is still poorly understood...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27721319/release-of-mitochondrial-dna-correlates-with-peak-inflammatory-cytokines-in-patients-with-acute-myocardial-infarction
#20
Chaoyi Qin, Jun Gu, Ruiqi Liu, Fei Xu, Hong Qian, Qian He, Wei Meng
OBJECTIVE: The present study is an exploration of the dynamic changes of plasma mitochondrial deoxyribonucleic acid (mtDNA) and inflammatory level in patients with acute myocardial infarction (MI). METHODS: Thirty-eight patients with acute MI and 33 control participants were included in the study. Blood samples were collected on admission, 12 hours post-percutaneous coronary intervention (PCI), 24 hours post-PCI, and 48 hours post-PCI. White blood cell (WBC) count and Creactive protein (CRP) level were determined...
October 5, 2016: Anatolian Journal of Cardiology
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