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inflammation and myocardial infarction

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https://www.readbyqxmd.com/read/27906746/recent-developments-on-the-vascular-effects-of-20-hydroxyeicosatetraenoic-acid
#1
Victor Garcia, Michal L Schwartzman
PURPOSE OF REVIEW: 20-Hydroxyeicosatetraenoic acid (20-HETE) is a potent vasoactive eicosanoid and a key constituent of the microcirculation. Its effects on vascular function are multifaceted and include stimulation of smooth muscle, contractility, migration, and proliferation, as well as endothelial cell dysfunction and inflammation. Such effects have significant implications with regard to the control of vascular homeostasis and pathophysiology. The clinical relevance of 20-HETE is highlighted by recent studies linking 20-HETE and its biosynthetic enzymes to the development of hypertension, stroke, and myocardial infarction...
November 30, 2016: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27906007/what-happens-to-cardiovascular-system-behind-the-undetectable-level-of-hiv-viremia
#2
REVIEW
Gabriella d'Ettorre, Giancarlo Ceccarelli, Paolo Pavone, Pietro Vittozzi, Gabriella De Girolamo, Ivan Schietroma, Sara Serafino, Noemi Giustini, Vincenzo Vullo
Despite the combined antiretroviral therapy has improved the length and quality of life of HIV infected patients, the survival of these patients is always decreased compared with the general population. This is the consequence of non-infectious illnesses including cardio vascular diseases. In fact large studies have indicated an increased risk of coronary atherosclerotic disease, myocardial infarction even in HIV patients on cART. In HIV infected patients several factors may contribute to the pathogenesis of cardiovascular problems: life-style, metabolic parameters, genetic predisposition, viral factors, immune activation, chronic inflammation and side effects of antiretroviral therapy...
April 27, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27905474/inflammatory-processes-in-cardiovascular-disease-a-route-to-targeted-therapies
#3
REVIEW
Neil Ruparelia, Joshua T Chai, Edward A Fisher, Robin P Choudhury
Inflammatory processes are firmly established as central to the development and complications of cardiovascular diseases. Elevated levels of inflammatory markers have been shown to be predictive of future cardiovascular events. The specific targeting of these processes in experimental models has been shown to attenuate myocardial and arterial injury, reduce disease progression, and promote healing. However, the translation of these observations and the demonstration of clear efficacy in clinical practice have been disappointing...
December 1, 2016: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27905214/the-association-of-plasma-oxidative-status-and-inflammation-with-the-development-of-atrial-fibrillation-in-patients-presenting-with-st-elevation-myocardial-infarction
#4
Hasan Aydin Bas, Fatih Aksoy, Atilla Icli, Ercan Varol, Abdullah Dogan, Dogan Erdogan, Ibrahim Ersoy, Akif Arslan, Hatem Ari, Nihal Bas, Recep Sutcu, Mehmet Ozaydin
Atrial fibrillation (AF) is the most common supraventricular arrhythmia following ST elevation myocardial infarction (STEMI). Oxidative stress and inflammation may cause structural and electrical remodeling in the atria making these critical processes in the pathology of AF. In this study, we aimed to evaluate the association between total oxidative status (TOS), total antioxidative capacity (TAC) and high-sensitivity C-reactive protein (hs-CRP) in the development of AF in patients presenting with STEMI. This prospective cohort study consisted of 346 patients with STEMI...
December 1, 2016: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27904669/astragaloside-iv-enhances-cardioprotection-of-remote-ischemic-conditioning-after-acute-myocardial-infarction-in-rats
#5
Songyi Cheng, Peng Yu, Li Yang, Haibo Shi, Anxia He, Hanyu Chen, Jie Han, Liang Xie, Jiandong Chen, Xiaohu Chen
BACKGROUND: Remote ischemic conditioning (RIC) has been shown to be a practical method for protecting the heart from ischemic/reperfusion (I/R) injury. In the present study, we investigated whether or not the combination of RIC and Astragaloside IV (AS-IV) could improve cardioprotection against acute myocardial infarction (AMI)-induced heart failure (HF) when compared with individual treatments. MATERIAL AND METHODS: A rat model of AMI was established via permanent ligation of the left anterior descending coronary artery (LAD)...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27902530/cardiac-troponin-release-is-associated-with-biomarkers-of-inflammation-and-ventricular-dilatation-during-critical-illness
#6
Marlies Ostermann, Salma Ayis, Emma Tuddenham, Jessica Lo, Katie Lei, John Smith, Barnaby Sanderson, Carl Moran, Paul Collinson, Janet Peacock, Andrew Rhodes, David Treacher
INTRODUCTION: Troponin release is common during critical illness. We hypothesized that there was an association between cardiac troponin T (cTnT) and biomarkers of systemic inflammation and ventricular dilatation. METHODS: In an observational prospective cohort study, we enrolled consecutive adult patients admitted for non-cardiac reasons to the Intensive Care Unit (ICU) in 2 tertiary care centers. We measured cTnT, C-reactive protein (CRP), Interleukin-6 (IL-6), procalcitonin (PCT) and N-terminal pro brain natriuretic peptide (NT-proBNP) daily in the first week, and on alternate days in the second week...
November 29, 2016: Shock
https://www.readbyqxmd.com/read/27898167/nsaids-prescription-prevalence-after-a-cardiovascular-event-related-hospitalization-in-medicaid-beneficiaries-from-puerto-rico
#7
Suzette M Vélez, José J Hernández, Sasha M Davis, María G Almodóvar, José R Mercado
OBJECTIVE: Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly prescribed for pain and inflammation. NSAIDs are associated with serious adverse effects and cardiovascular (CV) risks that include myocardial infarction, stroke and heart failure. In the period of time immediately after a CV event, modification to the drug therapy regimen and lifestyle habits should be instituted to decrease morbidity and mortality. The objective of this study is to measure the prevalence of NSAIDs prescribing in the immediate 90 days after a CV-related hospitalization in Medicaid beneficiaries in Puerto Rico...
December 2016: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/27884085/the-roles-of-myeloperoxidase-in-coronary-artery-disease-and-its-potential-implication-in-plaque-rupture
#8
Nathaniel Teng, Ghassan J Maghzal, Jihan Talib, Imran Rashid, Antony K Lau, Roland Stocker
Atherosclerosis is the main pathophysiological process underlying coronary artery disease (CAD). Acute complications of atherosclerosis, such as myocardial infarction, are caused by the rupture of vulnerable atherosclerotic plaques, which are characterized by thin, highly inflamed, and collagen-poor fibrous caps. Several lines of evidence mechanistically link the heme peroxidase myeloperoxidase (MPO), inflammation as well as acute and chronic manifestations of atherosclerosis. MPO and MPO-derived oxidants have been shown to contribute to the formation of foam cells, endothelial dysfunction and apoptosis, the activation of latent matrix metalloproteinases, and the expression of tissue factor that can promote the development of vulnerable plaque...
November 25, 2016: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/27880844/atorvastatin-improves-ventricular-remodeling-after-myocardial-infarction-by-interfering-with-collagen-metabolism
#9
Karla Reichert, Helison Rafael Pereira do Carmo, Anali Galluce Torina, Daniela Diógenes de Carvalho, Andrei Carvalho Sposito, Karlos Alexandre de Souza Vilarinho, Lindemberg da Mota Silveira-Filho, Pedro Paulo Martins de Oliveira, Orlando Petrucci
PURPOSE: Therapeutic strategies that modulate ventricular remodeling can be useful after acute myocardial infarction (MI). In particular, statins may exert effects on molecular pathways involved in collagen metabolism. The aim of this study was to determine whether treatment with atorvastatin for 4 weeks would lead to changes in collagen metabolism and ventricular remodeling in a rat model of MI. METHODS: Male Wistar rats were used in this study. MI was induced in rats by ligation of the left anterior descending coronary artery (LAD)...
2016: PloS One
https://www.readbyqxmd.com/read/27878945/regulatory-non-coding-rnas-in-acute-myocardial-infarction
#10
REVIEW
Yuan Guo, Fei Luo, Qiong Liu, Danyan Xu
Acute myocardial infarction (AMI) is one of the most common cardiovascular diseases that leads to high mortality and morbidity globally. Various therapeutic targets for AMI have been investigated in recent years, including the non-coding RNAs (ncRNAs). NcRNAs, a class of RNA molecules that typically do not code proteins, are divided into several subgroups. Among them, microRNAs (miRNAs) are widely studied for their modulation of several pathological aspects of AMI, including cardiomyocyte apoptosis, inflammation, angiogenesis and fibrosis...
November 23, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27878246/luteolin-protects-mice-from-severe-acute-pancreatitis-by-exerting-ho-1-mediated-anti-inflammatory-and-antioxidant-effects
#11
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/27865182/early-initiation-of-eicosapentaenoic-acid-and-statin-treatment-is-associated-with-better-clinical-outcomes-than-statin-alone-in-patients-with-acute-coronary-syndromes-1-year-outcomes-of-a-randomized-controlled-study
#12
Kazumasa Nosaka, Toru Miyoshi, Mutsumi Iwamoto, Masahito Kajiya, Keisuke Okawa, Saori Tsukuda, Fumi Yokohama, Masahiro Sogo, Tomoyuki Nishibe, Naoaki Matsuo, Satoshi Hirohata, Hiroshi Ito, Masayuki Doi
BACKGROUND: Early initiation of EPA treatment in combination with a statin within 24h after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (MI) reduces inflammation and ventricular arrhythmia compared with statin monotherapy; however, the impact of early initiation of EPA treatment on cardiovascular events is unclear. We determined whether early eicosapentaenoic acid (EPA) treatment in patients with acute coronary syndrome (ACS) reduces adverse cardiovascular events...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27855289/potential-contribution-of-the-hepcidin-macrophage-axis-to-plaque-vulnerability-in-acute-myocardial-infarction-in-human
#13
Masahiro Sasai, Yoshitaka Iso, Takuya Mizukami, Naohisa Tomosugi, Takeyuki Sambe, Akira Miyazaki, Hiroshi Suzuki
OBJECTIVES: Hepcidin-25 serves as a key peptide in the regulation of iron homeostasis and inflammation. It remains unknown whether hepcidin-25 plays an adverse role in atherosclerotic diseases. The aim of this study was to investigate whether hepcidin-25 is involved in the pathophysiology of coronary plaque vulnerability. METHODS AND RESULTS: Serum hepcidin-25 levels were quantitatively determined by the LC-MS/MS assay system. Peripheral blood was collected from patients with acute myocardial infarction (MI, n=33) and patients with stable angina pectoris (sCAD, n=19)...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27843475/the-effect-of-wenxin-keli-on-the-mrna-expression-profile-of-rabbits-with-myocardial-infarction
#14
Min Zheng, Zhouying Liu, Nana Liu, Cuihong Hou, Jielin Pu, Shu Zhang
Aims. The molecular mechanisms of Chinese traditional medicine Wenxin Keli (WXKL) were unknown. This study was aimed at exploring the effects of WXKL on the gene expression profile and pathological alteration of rabbits with myocardial infarction. Methods. Twenty male adult rabbits were randomly divided into 4 groups: sham, model, WXKL, and captopril groups. Model, WXKL, and captopril groups underwent the ligation of the left anterior descending coronary artery while sham group went through an identical procedure without ligation...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27833128/qishen-granules-inhibit-myocardial-inflammation-injury-through-regulating-arachidonic-acid-metabolism
#15
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/27830026/puerarin-inhibits-cardiac-fibrosis-via-monocyte-chemoattractant-protein-mcp-1-and-the-transforming-growth-factor-%C3%AE-1-tgf-%C3%AE-1-pathway-in-myocardial-infarction-mice
#16
Zhiwen Tao, Yingbin Ge, Ningtian Zhou, Yunle Wang, Weili Cheng, Zhijian Yang
Transforming growth factor-β1 (TGF-β1) and inflammation play important roles in the cardiac fibrosis development associated with myocardial infarction (MI). Puerarin is wildly used for treatment of diabetes, cardiovascular disease and cerebrovascular disease in China, and recently some studies have shown its anti-cardiac fibrotic effect on myocardial hypertrophy. The purpose of our study was to determine whether puerarin has an anti-cardiac fibrotic effect after MI and find the potential mechanism. A mouse model of MI was established by standard LAD coronary artery ligation, and cardiac fibrosis was confirmed by Masson's staining and the expression of collagen I, III and α-SMA...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27828877/elevated-red-cell-distribution-width-rdw-identifies-elevated-cardiovascular-disease-risk-in-patients-with-hiv-infection
#17
Sadeer G Al-Kindi, Chang H Kim, Stephen R Morris, Michael L Freeman, Nicholas T Funderburg, Benigno Rodriguez, Grace A McComsey, Jarrod E Dalton, Daniel I Simon, Michael M Lederman, Chris T Longenecker, David A Zidar
Red cell distribution width (RDW) is linked to cardiovascular risk in the general population, an association that might be driven by inflammation. Whether this relationship holds for patients with Human Immunodeficiency Virus (HIV) infection has not been previously studied. Using a large clinical registry, we show that elevated RDW (>14.5%) is independently associated with increased risk of coronary artery disease (odds ratio (OR) 1.39 [1.25-1.55]), peripheral vascular disease (OR 1.41 [1.29-1.53]), myocardial infarction (1...
November 4, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/27826911/imaging-high-risk-atherosclerotic-plaques-with-pet
#18
REVIEW
Shawnbir Gogia, Yannick Kaiser, Ahmed Tawakol
Atherosclerotic disease, a primary cause of stroke and myocardial infarction, is the most common underlying cause of death worldwide. While atherosclerosis was formerly considered to be a relatively inert structural abnormality, decades of research have since shown that it is a biologically active process, driven by active inflammation. In concert with this conceptual shift, newer strategies to image vascular lesions have evolved. (18)F-fluorodeoxyglucose (FDG) positron emission tomography (PET) imaging has been validated as a non-invasive tool to characterize atherosclerotic inflammation...
December 2016: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27825629/orthopedic-surgery-increases-atherosclerotic-lesions-and-necrotic-core-area-in-apoe-mice
#19
Wessel W Fuijkschot, Martine C Morrison, Rianne van der Linden, Paul A J Krijnen, Ilse P A Zethof, Lars F H Theyse, Robert Kleemann, Hans W M Niessen, Yvo M Smulders
BACKGROUND AND AIMS: Observational studies show a peak incidence of cardiovascular events after major surgery. For example, the risk of myocardial infarction increases 25-fold early after hip replacement. The acuteness of this increased risk suggests abrupt enhancement in plaque vulnerability, which may be related to intra-plaque inflammation, thinner fibrous cap and/or necrotic core expansion. We hypothesized that acute systemic inflammation following major orthopedic surgery induces such changes...
October 28, 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27819271/water-soluble-acacetin-prodrug-confers-significant-cardioprotection-against-ischemia-reperfusion-injury
#20
Hui Liu, Lei Yang, Hui-Jun Wu, Kui-Hao Chen, Feng Lin, Gang Li, Hai-Ying Sun, Guo-Sheng Xiao, Yan Wang, Gui-Rong Li
The morbidity and mortality of patients with ischemic cardiomyopathy resulted from ischemia/reperfusion injury are very high. The present study investigates whether our previously synthesized water-soluble phosphate prodrug of acacetin was cardioprotective against ischemia/reperfusion injury in an in vivo rat model. We found that intravenous administration of acacetin prodrug (10 mg/kg) decreased the ventricular arrhythmia score and duration, reduced ventricular fibrillation and infarct size, and improved the impaired heart function induced by myocardial ischemia/reperfusion injury in anesthetized rats...
November 7, 2016: Scientific Reports
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