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Post infarction heart failure

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https://www.readbyqxmd.com/read/29167580/pyridoxamine-improves-survival-and-limits-cardiac-dysfunction-after-mi
#1
Dorien Deluyker, Vesselina Ferferieva, Ronald B Driesen, Maxim Verboven, Ivo Lambrichts, Virginie Bito
Advanced glycation end products (AGEs) play a key role in the progression of heart failure. Whether treatments limiting AGEs formation would prevent adverse left ventricular remodeling after myocardial infarction (MI) remain unknown. We investigated whether pyridoxamine (PM) could limit adverse cardiac outcome in MI. Rats were divided into MI, MI + PM and Sham. Echocardiography and hemodynamic parameters were used to assess cardiac function 8 weeks post-surgery. Total interstitial collagen, collagen I and collagen III were quantified using Sirius Red and polarized light microscopy...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29153575/persistent-iron-within-the-infarct-core%C3%A2-after-st-segment-elevation-myocardial-infarction-implications-for-left-ventricular-remodeling-and-health%C3%A2-outcomes
#2
Jaclyn Carberry, David Carrick, Caroline Haig, Nadeem Ahmed, Ify Mordi, Margaret McEntegart, Mark C Petrie, Hany Eteiba, Stuart Hood, Stuart Watkins, Mitchell Lindsay, Andrew Davie, Ahmed Mahrous, Ian Ford, Naveed Sattar, Paul Welsh, Aleksandra Radjenovic, Keith G Oldroyd, Colin Berry
OBJECTIVES: This study sought to determine the incidence and prognostic significance of persistent iron in patients post-ST-segment elevation myocardial infarction (STEMI). BACKGROUND: The clinical significance of persistent iron within the infarct core after STEMI complicated by acute myocardial hemorrhage is poorly understood. METHODS: Patients who sustained an acute STEMI were enrolled in a cohort study (BHF MR-MI [Detection and Significance of Heart Injury in ST Elevation Myocardial Infarction])...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29148290/single-centre-experience-with-the-impella-cp-5-0-and-rp-in-109-consecutive-patients-with-profound-cardiogenic-shock
#3
Peter Blom Jensen, Sigrun Høegholm Kann, Karsten Tange Veien, Ole Kristian Møller-Helgestad, Jordi Sanchez Dahl, Charlotte Svejstrup Rud, Marianne Kjær Jensen, Lisette Okkels Jensen, Henrik Schmidt, Jacob Eifer Møller
RATIONALE: Short-term mechanical circulatory support is increasingly used in the management of cardiogenic shock, but data from controlled studies are sparse. Thus, real-life data on complication rates and predictors of adverse outcome are important. OBJECTIVE: The objective of this study was to analyse the experience with Impella devices in the management of profound cardiogenic shock. METHODS AND RESULTS: A retrospective study of 109 consecutive patients with severe shock after myocardial infarction, acute heart failure, or cardiac surgery...
November 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29131283/quantitative-myocardial-blush-score-qube-allows-the-prediction-of-heart-failure-development-in-long-term-follow-up-in-patients-with-st-elevation-myocardial-infarction-proof-of-concept-study
#4
Andrzej Tomasik, Tomasz Młyńczak, Edyta Nowak, Katarzyna Pigoń, Artur Iwasieczko, Mariusz Opara, Ewa Nowalany-Kozielska
BACKGROUND: Acute myocardial infarction (AMI) might lead to left ventricular remodeling. Adequate myocardial perfusion is critical to prevent this adverse remodeling. Quantitative myocardial blush evaluator (QuBE) software, available on-line, is a simple analysis tool which enables the precise quantification of myocardial perfusion in the infarct area immediately after interventional treatment. The aim of this study was to assess whether the results of QuBE analysis might predict the development of HF in AMI patients in 3 year-long follow-up...
November 13, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/29127185/advances-in-computational-modelling-for-personalised-medicine-after-myocardial-infarction
#5
REVIEW
Kenneth Mangion, Hao Gao, Dirk Husmeier, Xiaoyu Luo, Colin Berry
Myocardial infarction (MI) is a leading cause of premature morbidity and mortality worldwide. Determining which patients will experience heart failure and sudden cardiac death after an acute MI is notoriously difficult for clinicians. The extent of heart damage after an acute MI is informed by cardiac imaging, typically using echocardiography or sometimes, cardiac magnetic resonance (CMR). These scans provide complex data sets that are only partially exploited by clinicians in daily practice, implying potential for improved risk assessment...
November 10, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29127009/nicorandil-alleviates-myocardial-injury-and-post-infarction-cardiac-remodeling-by-inhibiting-mst1
#6
Shanjie Wang, Yanhong Fan, Xinyu Feng, Chuang Sun, Zhaofeng Shi, Tian Li, Jianjun Lv, Zhi Yang, Zhijing Zhao, Dongdong Sun
BACKGROUND: Cardiomyocyte autophagy and apoptosis are crucial events underlying the development of cardiac abnormalities and dysfunction after myocardial infarction (MI). A better understanding of the cell signaling pathways involved in cardiac remodeling may support the development of new therapeutic strategies for the treatment of heart failure (HF) after MI. METHODS: A cardiac MI injury model was constructed by ligating the left anterior descending (LAD) coronary artery...
November 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29122962/frequent-drinking-of-small-volumes-improves-cardiac-function-and-survival-in-rats-with-chronic-heart-failure
#7
Can Zheng, Meihua Li, Toru Kawada, Masashi Inagaki, Kazunori Uemura, Masaru Sugimachi
Fluid retention is the main reason for the high hospitalization rate among patients with chronic heart failure (CHF). Given the lack of knowledge about fluid intake regulation and its consequences in patients with CHF, current guidelines do not provide clear direction for fluid management. Using a rat model of CHF, we investigated altering drinking behaviors and explored fluid management strategies. CHF was induced by ligating the left anterior descending coronary arteries in 8-week-old, male, Sprague-Dawley rats...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29122578/a-carvedilol-responsive-microrna-mir-125b-5p-protects-the-heart-from-acute-myocardial-infarction-by-repressing-pro-apoptotic-bak1-and-klf13-in-cardiomyocytes
#8
Ahmed S Bayoumi, Kyoung-Mi Park, Yongchao Wang, Jian-Peng Teoh, Tatsuya Aonuma, Yaoliang Tang, Huabo Su, Neal L Weintraub, Il-Man Kim
BACKGROUND: Cardiac injury is accompanied by dynamic changes in the expression of microRNAs (miRs), small non-coding RNAs that post-transcriptionally regulate target genes. MiR-125b-5p is downregulated in patients with end-stage dilated and ischemic cardiomyopathy, and has been proposed as a biomarker of heart failure. We previously reported that the β-blocker carvedilol promotes cardioprotection via β-arrestin-biased agonism of β1-adrenergic receptor while stimulating miR-125b-5p processing in the mouse heart...
November 7, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29121725/real-world-study-of-low-density-lipoprotein-cholesterol-levels-and-cardiovascular-outcomes-in-chinese-a-retrospective-cohort-study-in-post-percutaneous-coronary-intervention-acute-coronary-syndrome-patients
#9
Yun Wang, Bryan P Yan, Michael B Nichol, Brian Tomlinson, Vivian W Y Lee
BACKGROUND: This study aimed to assess the effect of low-density lipoprotein cholesterol (LDL-C) goal attainments (of <2.6mmol/L and <1.8mmol/L) on first major adverse cardiovascular events (MACEs) for acute coronary syndrome (ACS) patients who underwent percutaneous coronary intervention (PCI). METHODS: A retrospective cohort study was conducted using case reviews of post-PCI ACS patients at an acute public hospital in Hong Kong between January 2009 and August 2015...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29116107/micrornas-regulating-superoxide-dismutase-2-are-new-circulating-biomarkers-of-heart-failure
#10
Emilie Dubois-Deruy, Marie Cuvelliez, Jan Fiedler, Henri Charrier, Paul Mulder, Eleonore Hebbar, Angelika Pfanne, Olivia Beseme, Maggy Chwastyniak, Philippe Amouyel, Vincent Richard, Christophe Bauters, Thomas Thum, Florence Pinet
Although several risk factors such as infarct size have been identified, the progression of heart failure (HF) remains difficult to predict in clinical practice. Using an experimental rat model of post-myocardial infarction (MI), we previously identified 45 proteins differentially modulated during HF by proteomic analysis. This study sought to identify microRNAs (miRNAs) able to regulate these proteins and to test their relevance as biomarkers for HF. In silico bioinformatical analysis selected 13 miRNAs related to the 45 proteins previously identified...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29113826/ghrelin-suppresses-cardiac-fibrosis-of-post-myocardial-infarction-heart-failure-rats-by-adjusting-the-activin-a-follistatin-imbalance
#11
Chunyan Yang, Jinsha Liu, Kai Liu, Beibei Du, Kaiyao Shi, Mei Ding, Bing Li, Ping Yang
Ghrelin, a growth hormone-releasing peptide, potentially improves cardiac function, but the mechanisms remain unclear. In the study, the rat heart failure (HF) model was established by ligating the left anterior descending coronary artery (LAD) and treated with ghrelin (100μg/kg, subcutaneous injection, bid); neonatal rat cardiomyocytes were cultured and stimulated with Ang II (0.1μM) and ghrelin(0.1μM) to explore the underlying mechanism of ghrelin in myocardial remodeling. Hemodynamic changes and serum brain natriuretic peptide (BNP) concentrations were measured to assess cardiac function...
November 4, 2017: Peptides
https://www.readbyqxmd.com/read/29101178/heart-functional-and-structural-compendium-of-cardiosplenic-and-cardiorenal-networks-in-acute-and-chronic-heart-failure-pathology
#12
Ganesh V Halade, Vasundhara Kain, Kevin A Ingle
Heart failure (HF) secondary to myocardial infarction (MI) is linked to kidney complications that comprise cellular, structural, functional, and survival indicators. However, the HF research is focused on left ventricle (LV) pathology. Here, we determined the comprehensive functional analysis of LV using echocardiography in transition from acute HF (AHF) to progressive CHF pathology and develop a histological compendium of the cardiosplenic and cardiorenal networks in pathological remodeling. In surgically-induced MI using permanent coronary ligation, the LV dysfunction is pronounced, with myocardium necrosis, wall-thinning and 20-30% LV rupture events that indicated AHF and CHF pathological remodeling in C57BL/6 male mice (2-4 months old; n=50)...
November 3, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29101177/a-novel-mitochondrial-dna-repair-enzyme-attenuates-maladaptive-remodeling-and-preserves-cardiac-function-in-heart-failure
#13
Jessica M Bradley, Zhen Li, Chelsea L Organ, David J Polhemus, Hiroyuki Otsuka, Shashi Bhushan, Olena M Gorodnya, Mykhaylo Ruchko, Mark N Gillespie, Glenn L Wilson, David J Lefer
BACKGROUND: Oxidative stress results in mitochondrial DNA (mtDNA) damage and contributes to myocardial cell death. mtDNA repair enzymes are crucial for mtDNA repair and cell survival. We investigated a novel, mitochondrial-targeted fusion protein (Exscien1-III) containing endonuclease III in myocardial ischemia/reperfusion (MI/Rep) injury and transverse aortic constriction (TAC) induced heart failure. METHODS AND RESULTS: Male C57/BL6J mice (10-12 wks) were subjected to 45 min...
November 3, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29098797/acylated-ghrelin-treatment-normalizes-skeletal-muscle-mitochondrial-oxidative-capacity-and-akt-phosphorylation-in-rat-chronic-heart-failure
#14
Rocco Barazzoni, Gianluca Gortan Cappellari, Sandra Palus, Pierandrea Vinci, Giulia Ruozi, Michela Zanetti, Annamaria Semolic, Nicole Ebner, Stephan von Heahling, Gianfranco Sinagra, Mauro Giacca, Jochen Springer
BACKGROUND: Chronic heart failure (CHF) is associated with skeletal muscle abnormalities contributing to exercise intolerance, muscle loss, and negative impact on patient prognosis. A primary role has been proposed for mitochondrial dysfunction, which may be induced by systemic and tissue inflammation and further contribute to low insulin signalling. The acylated form of the gastric hormone ghrelin (AG) may improve mitochondrial oxidative capacity and insulin signalling in both healthy and diseased rodent models...
November 3, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29098323/three-question-set-from-michigan-neuropathy-screening-instrument-adds-independent-prognostic-information-on-cardiovascular-outcomes-analysis-of-altitude-trial
#15
Jelena P Seferovic, Marc A Pfeffer, Brian Claggett, Akshay S Desai, Dick de Zeeuw, Steven M Haffner, John J V McMurray, Hans-Henrik Parving, Scott D Solomon, Nish Chaturvedi
AIMS/HYPOTHESIS: The self-administered Michigan Neuropathy Screening Instrument (MNSI) is used to diagnose diabetic peripheral neuropathy. We examined whether the MNSI might also provide information on risk of death and cardiovascular outcomes. METHODS: In this post hoc analysis of the Aliskiren Trial in Type 2 Diabetes Using Cardio-Renal Endpoints (ALTITUDE) trial, we divided 8463 participants with type 2 diabetes and chronic kidney disease (CKD) and/or cardiovascular disease (CVD) into independent training (n = 3252) and validation (n = 5211) sets...
November 3, 2017: Diabetologia
https://www.readbyqxmd.com/read/29089415/periprocedural-heparin-use-in-acute-ischemic-stroke-endovascular-therapy-the-trevo-2-trial
#16
Melanie J Winningham, Diogo C Haussen, Raul G Nogueira, David S Liebeskind, Wade S Smith, Helmi L Lutsep, Tudor G Jovin, Bin Xiang, Fadi Nahab
BACKGROUND: The use of periprocedural heparin has previously been reported to be safe and potentially beneficial during thrombectomy with older generation devices. We aimed to evaluate the safety and clinical outcomes of heparin use in the stent retriever era. METHODS: A post hoc analysis of the TREVO 2 trial was performed comparing baseline characteristics and clinical outcomes between patients who received (HEP+) and those who did not receive periprocedural heparin (HEP-) while undergoing MERCI or TREVO clot retrieval...
October 31, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29081904/takotsubo-cardiomyopathy-pathophysiology-and-role-of-cardiac-biomarkers-in-differential-diagnosis
#17
REVIEW
Prabhakaran Gopalakrishnan, Ramsha Zaidi, Muhammad Rizwan Sardar
Takotsubo cardiomyopathy (TC) is characterized by reversible ventricular dysfunction, not limited to the distribution of an epicardial coronary artery. A disease primarily afflicting post-menopausal women, it is frequently mistaken for acute anterior wall myocardial infarction. Alternatively called Stress Cardiomyopathy, physical or emotional triggers are identified in only three fourths of TC patients. Long considered a benign condition, recent findings suggest poor short term prognosis similar to acute coronary syndrome (ACS)...
September 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/29080863/temporal-trends-in-the-use-and-comparative-effectiveness-of-direct-oral-anticoagulant-agents-versus-warfarin-for-nonvalvular-atrial-fibrillation-a-canadian-population-based-study
#18
Amy Y X Yu, Shaun Malo, Lawrence W Svenson, Stephen B Wilton, Michael D Hill
BACKGROUND: Direct oral anticoagulants (DOACs) are noninferior to warfarin for stroke prevention in atrial fibrillation (AF). We aimed to determine the population risk of stroke and death in incident AF, stratified by anticoagulation status and type, and the temporal trends of oral anticoagulation practice in the post-DOAC approval period. METHODS AND RESULTS: We conducted a population-based cohort study of incident nonvalvular AF cases using administrative health data in Alberta, Canada...
October 28, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29066436/interleukin-6-and-the-risk-of-adverse-outcomes-in-patients-after-an-acute-coronary-syndrome-observations-from-the-solid-timi-52-stabilization-of-plaque-using-darapladib-thrombolysis-in-myocardial-infarction-52-trial
#19
Christina L Fanola, David A Morrow, Christopher P Cannon, Petr Jarolim, Mary Ann Lukas, Christoph Bode, Judith S Hochman, Erica L Goodrich, Eugene Braunwald, Michelle L O'Donoghue
BACKGROUND: Interleukin-6 (IL-6) is an inflammatory cytokine implicated in plaque instability in acute coronary syndrome (ACS). We aimed to evaluate the prognostic implications of IL-6 post-ACS. METHODS AND RESULTS: IL-6 concentration was assessed at baseline in 4939 subjects in SOLID-TIMI 52 (Stabilization of Plaque Using Darapladib-Thrombolysis in Myocardial Infarction 52), a randomized trial of darapladib in patients ≤30 days from ACS. Patients were followed for a median of 2...
October 24, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29049508/outcomes-in-women-and-minorities-compared-with-white-men-1-year-after-everolimus-eluting-stent-implantation-insights-and-results-from-the-platinum-diversity-and-promus-element-plus-post-approval-study-pooled-analysis
#20
Wayne Batchelor, David E Kandzari, Scott Davis, Luis Tami, John C Wang, Islam Othman, Osvaldo S Gigliotti, Amir Haghighat, Sarabjeet Singh, Mario Lopez, Gregory Giugliano, Phillip A Horwitz, Jaya Chandrasekhar, Paul Underwood, Craig A Thompson, Roxana Mehran
Importance: There exist limited outcomes data for women and minorities after contemporary percutaneous coronary intervention (PCI). Objective: To examine 1-year outcomes in women and minorities vs white men after PCI with everolimus-eluting stents. Design, Settings, and Participants: The PLATINUM Diversity study was a single-arm study enrolling women and minorities. Patient-level pooling with the PROMUS Element Plus Post-Approval Study was prespecified...
October 18, 2017: JAMA Cardiology
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