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https://www.readbyqxmd.com/read/28731278/knockdown-of-long-non-coding-rna-meg3-protects-h9c2-cells-from-hypoxia-induced-injury-by-targeting-microrna-183
#1
Licheng Gong, Haiming Xu, Hong Chang, Yaliang Tong, Tao Zhang, Gongliang Guo
Acute myocardial infarction (AMI) occurs when blood supply to the heart is diminished (ischemia) for long time, and ischemia is primarily caused due to hypoxia. This study evaluated the effects of long non-coding RNA maternally expressed gene 3 (MEG3) on hypoxic rat cardiomyocyte-drived H9c2 cells. Hypoxic injury was confirmed by alterations of cell viability, migration, invasion, apoptosis and hypoxia-inducible factor 1α (HIF-1α) expression. MEG3 level in hypoxic cells and effects of its knockdown on hypoxic cells were assessed...
July 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28731128/lncrna-expression-character-associated-with-ischemic-reperfusion-injury
#2
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/28729411/recognized-obstructive-sleep-apnea-is-associated-with-improved-in-hospital-outcomes-after-st-elevation-myocardial-infarction
#3
Divyanshu Mohananey, Pedro A Villablanca, Tanush Gupta, Sahil Agrawal, Michael Faulx, Venugopal Menon, Samir R Kapadia, Brian P Griffin, Stephen G Ellis, Milind Y Desai
BACKGROUND: Obstructive sleep apnea (OSA) is an independent risk factor for many cardiovascular conditions such as coronary artery disease, myocardial infarction, systemic hypertension, pulmonary hypertension, and stroke. However, the association of OSA with outcomes in patients hospitalized for ST-elevation myocardial infarction remains controversial. METHODS AND RESULTS: We used the nation-wide inpatient sample between 2003 and 2011 to identify patients with a primary discharge diagnosis of ST-elevation myocardial infarction and then used the International Classification of Diseases, Clinical Modification code 327...
July 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28723830/early-versus-delayed-coronary-artery-bypass-graft-surgery-for-patients-with-non-st-elevation-myocardial-infarction
#4
Le Dung Ha, Gbolahan Ogunbayo, Ayman Elbadawi, Odunayo Olorunfemi, Adrian Messerli
BACKGROUND: Although coronary artery bypass graft surgery (CABG) has been proven to have mortality and morbidity benefits in patients with non-ST elevation myocardial infarction and multivessel disease, the appropriate timing of this procedure remains unclear. Therefore, we proposed a propensity score-matched analysis comparing the clinical outcomes between patients who underwent CABG within the first 48 h of admission (early CABG) and patients who underwent CABG after 48 h of admission (delayed CABG)...
July 18, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28711360/false-positive-stemi-activations-in-a-regional-network-comprehensive-analysis-and-clinical-impact-results-from-the-catalonian-codi-infart-network
#5
Ander Regueiro, Diego Fernández-Rodríguez, Xavier Freixa, Xavier Bosch, Victoria Martín-Yuste, Salvatore Brugaletta, Mercè Roqué, Manel Sabaté, Mónica Masotti
INTRODUCTION AND OBJECTIVES: ST-segment elevation myocardial infarction (STEMI) network activation by a noncardiologist reduces delay times but may increase the rate of false-positive STEMI diagnoses. We aimed to determine the prevalence, predictors, and clinical impact of false-positive activations within the Catalonian STEMI network (Codi Infart). METHODS: From January 2010 through December 2011, all consecutive patients treated within the Codi Infart network were included...
July 12, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28710827/comparison-of-non-coding-rnas-in-exosomes-and-functional-efficacy-of-human-embryonic-stem-cell-versus-induced-pluripotent-stem-cell-derived-cardiomyocytes
#6
Won Hee Lee, Wenyi Chen, Ning-Yi Shao, Dan Xiao, Xulei Qin, Natalie Baker, Hye Ryeong Michelle Bae, Praveen Shukla, Haodi Wu, Kazuki Kodo, Sang-Ging Ong, Joseph C Wu
BACKGROUND: Both human embryonic stem cell-derived cardiomyocytes (ESC-CMs) and human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) can serve as unlimited cell sources for cardiac regenerative therapy. However, the functional equivalency between human ESC-CMs and iPSC-CMs for cardiac regenerative therapy has not been demonstrated. Here we performed a head-to-head comparison of ESC-CMs and iPSC-CMs in their ability to restore cardiac function in a rat myocardial infarction (MI) model as well as their exosomal secretome...
July 14, 2017: Stem Cells
https://www.readbyqxmd.com/read/28703801/lncrna-miat-functions-as-a-competing-endogenous-rna-to-upregulate-dapk2-by-sponging-mir-22-3p-in-diabetic-cardiomyopathy
#7
Xiang Zhou, Wei Zhang, Mengchao Jin, Jianchang Chen, Weiting Xu, Xiangqing Kong
We previously established a rat model of diabetic cardiomyopathy (DCM) and found that the expression of long non-coding RNA myocardial infarction-associated transcript (MIAT) was significantly upregulated. The present study was aimed to determine the pathologic role of MIAT in the development of DCM. MIAT knockdown was found to reduce cardiomyocyte apoptosis and improve left ventricular function in diabetic rats. High glucose could increase MIAT expression and induce apoptosis in cultured neonatal cardiomyocytes...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28699517/circadian-micrornas-in-cardioprotection
#8
Yoshimasa Oyama, Colleen Marie Bartman, Jennifer Gile, Tobias Eckle
The most dramatic feature of life on Earth is our adaptation to the cycle of day and night. Throughout evolutionary time, almost all living organisms developed a molecular clock linked to the light-dark cycles of the sun. In present time, we know that this molecular clock is crucial to maintain metabolic and physiological homeostasis. Indeed, a dysregulated molecular clockwork is a major contributing factor to many metabolic diseases. In fact, the time of onset of acute myocardial infarction exhibits a circadian periodicity and recent studies found that the light regulated circadian rhythm protein Period 2 (PER2) elicits endogenous cardioprotection from ischemia...
July 7, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28690296/prevalence-and-spectrum-of-nkx2-5-mutations-associated-with-sporadic-adult-onset-dilated-cardiomyopathy
#9
Jia-Hong Xu, Jian-Yun Gu, Yu-Han Guo, Hong Zhang, Xing-Biao Qiu, Ruo-Gu Li, Hong-Yu Shi, Hua Liu, Xiao-Xiao Yang, Ying-Jia Xu, Xin-Kai Qu, Yi-Qing Yang
Dilated cardiomyopathy (DCM), the most common form of primary myocardial disease, is a leading cause of congestive heart failure and the most common indication for heart transplantation. Recently, NKX2-5 mutations have been involved in the pathogenesis of familial DCM. However, the prevalence and spectrum of NKX2-5 mutations associated with sporadic DCM remain to be evaluated. In this study, the coding regions and flanking introns of the NKX2-5 gene, which encodes a cardiac transcription factor pivotal for cardiac development and structural remodeling, were sequenced in 210 unrelated patients with sporadic adult-onset DCM...
July 10, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28687707/validity-of-cardiovascular-data-from-electronic-sources-the-multi-ethnic-study-of-atherosclerosis-and-healthlnk
#10
Faraz S Ahmad, Cheeling Chan, Marc B Rosenman, Wendy S Post, Daniel G Fort, Philip Greenland, Kiang J Liu, Abel Kho, Norrina B Allen
Background -Understanding the validity of data from electronic data research networks is critical to national research initiatives and learning healthcare systems for cardiovascular care. Our goal was to evaluate the degree of agreement of electronic data research networks compared with data collected by standardized research approaches in a cohort study. Methods -We linked individual-level data from The Multi-Ethnic Study of Atherosclerosis (MESA), a community-based cohort, with HealthLNK, a 2006-2012 database of electronic health records (EHRs) from six, Chicago health systems...
July 7, 2017: Circulation
https://www.readbyqxmd.com/read/28684219/elevated-plasma-levels-of-mir-29a-are-associated-with-hemolysis-in-patients-with-hypertrophic-cardiomyopathy
#11
Dimitrios Ntelios, Soultana Meditskou, Georgios Efthimiadis, Antonios Pitsis, Eleni Nikolakaki, Fotios Girtovitis, Despoina Parcharidou, Thomas Zegkos, Sofia Kouidou, Haralampos Karvounis, Georgios Tzimagiorgis
BACKGROUND: miR-29a is a small non-coding RNA that is known to repress collagen synthesis. Interestingly, elevated plasma miR-29a was reported to correlate with pronounced myocardial fibrosis in patients with hypertrophic cardiomyopathy. The objective of this study was to elucidate the origin of plasma miR-29a, and evaluate its significance as a biomarker. METHODS: miR-29a expression was evaluated in plasma (n=50) and myocardial samples (n=4) from patients with hypertrophic cardiomyopathy using RT-qPCR...
July 4, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28669702/incidence-and-prognostic-implications-of-late-bleeding-after-myocardial-infarction-or-unstable-angina-according-to-treatment-strategy
#12
Miriam Brinkert, Danielle A Southern, Matthew T James, Merrill L Knudtson, Todd J Anderson, François Charbonneau
BACKGROUND: Bleeding complications accompanying coronary revascularization are associated with increased mortality; however, few data are available on subsequent bleeding risk. We used administrative data to assess the incidence of late bleeding events in patients with acute coronary syndrome (ACS) according to treatment allocation. METHODS: The cohort and bleeding events were identified through the Canadian Institute for Health Information discharge abstract database...
May 5, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28667815/pulmonary-thromboembolism-in-an-emergency-hospital-are-our-patients-different
#13
Ana Maria Balahura, Andrada Guţă, Vlad Mihalcea, Emma Weiss, Maria Dorobanţu, Daniela Bartoş, Elisabeta Bădilă, Gheorghe Andrei Dan
INTRODUCTION: Pulmonary embolism (PTE) represents a medical emergency and is the third most common cause of mortality after myocardial infarction and stroke. The purpose of this study was to describe the characteristics and management of patients with PTE admitted in a referral emergency hospital in Romania. MATERIAL AND METHODS: We retrospectively reviewed all cases of PTE diagnosed in one of the largest emergency hospitals in Bucharest during a 2-year period (January 2014 - December 2016)...
June 27, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28643011/prevalence-and-risk-factors-for-cardiac-arrest-and-myocardial-infarction-after-pelvic-reconstructive-surgery-a-national-multi-institutional-surgical-database-study
#14
David Sheyn, Sangeeta Mahajan, Sherif El-Nashar, Adonis Hijaz, Xiao-Yu Wang, Jeff Mangel
INTRODUCTION AND HYPOTHESIS: There is limited data available regarding the risk for perioperative cardiac morbidity following pelvic reconstructive surgery (PRS). We sought to determine the incidence of cardiac arrest and myocardial infarction within 30 days of pelvic organ prolapse (POP) surgery and determine which factors may contribute to an increased risk of these complications. METHODS: Using the American College of Surgeons National Quality Improvement Program (NSQIP) database, we identified patients who underwent PRS procedures between 2010 to 2015 using Current Procedural Terminology (CPT) codes...
June 22, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28638918/-generation-of-tnnt2a-knock-out-zebrafish-via-crispr-cas9-and-phenotypic-analysis
#15
Lian Liu, Ran-Ran Zhang, Qian Yang, Xu Wang, Yong-Hao Gui
Cardiac troponin T (cTnT) serves as a structural protein of myocardial fiber, and participates in heart excitation-contraction coupling process. Here, we generated tnnt2a (cTnT-coding gene) deletion mutant zebrafish via CRISPR/Cas9 technique, and performed phenotypic analysis of the identified tnnt2a mutants. We observed that there was no significant difference between heterozygous mutant and wild type zebrafish, and the homozygous mutants displayed significant malformations in heart, including cardiac arrest, atrium and ventricle enlargement, pericardium effusion, and the individuals usually died before 7 day post fertilization (dpf)...
June 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28635339/methods-for-estimating-costs-in-patients-with-hyperlipidemia-experiencing-their-first-cardiovascular-event-in-the-united-kingdom
#16
Mark D Danese, Michelle Gleeson, Robert I Griffiths, David Catterick, Lucie Kutikova
AIMS: Methods for integrating external costs into clinical databases are not well-characterized. The purpose of this research was to describe and implement methods for estimating the cost of hospitalizations, prescriptions, and general practitioner and specialist visits used to manage hyperlipidemia patients experiencing cardiovascular (CV) events in the United Kingdom (UK). METHODS: This study was a retrospective cohort study using the Clinical Practice Research Datalink and Hospital Episode Statistics data...
June 21, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28631397/the-effects-and-toxicity-of-cathinones-from-the-users-perspectives-a-qualitative-study
#17
Sulaf Assi, Nargilya Gulyamova, Paul Kneller, David Osselton
OBJECTIVE: The objective of this study is to explore the users' perspectives regarding the effects and toxicity of cathinones. METHODS: A systematic search of Internet discussion forums yielded 303 threads relevant to the research objectives. The threads were analysed by conventional content analysis where concepts were developed from codes and themes. RESULTS: The study identified 3 main themes in relation to cathinone use, effects, and toxicity...
June 20, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28625376/electrocardiographic-abnormalities-and-mortality-in-aging-survivors-of-childhood-cancer-a-report-from-the-st-jude-lifetime-cohort-study
#18
Daniel A Mulrooney, Elsayed Z Soliman, Matthew J Ehrhardt, Lu Lu, Daniel A Duprez, Russell V Luepker, Gregory T Armstrong, Vijaya M Joshi, Daniel M Green, Deokumar Srivastava, Matthew J Krasin, G Stephen Morris, Leslie L Robison, Melissa M Hudson, Kirsten K Ness
BACKGROUND: Electrocardiography (ECG), predictive of adverse outcomes in the general population, has not been studied in cancer survivors. We evaluated the prevalence of ECG abnormalities and associations with mortality among childhood cancer survivors. METHODS: Major and minor abnormalities were coded per the Minnesota Classification system for participants in the St Jude Lifetime Cohort Study (n = 2,715) and community controls (n = 268). Odds ratios (ORs) and 95% CIs were calculated using multivariable logistic regression; and hazard ratios, using Cox proportional hazards regression...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28622955/age-specific-risks-severity-time-course-and-outcome-of-bleeding-on-long-term-antiplatelet-treatment-after-vascular-events-a-population-based-cohort-study
#19
Linxin Li, Olivia C Geraghty, Ziyah Mehta, Peter M Rothwell
BACKGROUND: Lifelong antiplatelet treatment is recommended after ischaemic vascular events, on the basis of trials done mainly in patients younger than 75 years. Upper gastrointestinal bleeding is a serious complication, but had low case fatality in trials of aspirin and is not generally thought to cause long-term disability. Consequently, although co-prescription of proton-pump inhibitors (PPIs) reduces upper gastrointestinal bleeds by 70-90%, uptake is low and guidelines are conflicting...
June 13, 2017: Lancet
https://www.readbyqxmd.com/read/28611878/physician-variability-in-management-of-emergency-department-patients-with-chest-pain
#20
Peter B Smulowitz, Orit Barrett, Matthew M Hall, Shamai A Grossman, Edward A Ullman, Victor Novack
INTRODUCTION: Chest pain is a common emergency department (ED) presentation accounting for 8-10 million visits per year in the United States. Physician-level factors such as risk tolerance are predictive of admission rates. The recent advent of accelerated diagnostic pathways and ED observation units may have an impact in reducing variation in admission rates on the individual physician level. METHODS: We conducted a single-institution retrospective observational study of ED patients with a diagnosis of chest pain as determined by diagnostic code from our hospital administrative database...
June 2017: Western Journal of Emergency Medicine
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