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https://www.readbyqxmd.com/read/28107665/a-%C3%AF-%C3%AF-conjugation-containing-soft-and-conductive-injectable-polymer-hydrogel-highly-efficiently-rebuilds-cardiac-function-after-myocardial-infarction
#1
Rui Bao, Baoyu Tan, Shuang Liang, Ning Zhang, Wei Wang, Wenguang Liu
Previous studies suggested that a stiffer hydrogel system exhibited a better performance to promote heart function after myocardial infarction (MI). However, the nature of myocardium, a tissue that alternately contracts and relaxes with electrical impulses, leads us to hypothesize that a soft and conductive hydrogel may be in favor of mechanical and electrical signals transmission to enhance heart function after MI. In this work, π-π conjugation interaction was first employed to produce a soft injectable hydrogel with conductive property...
January 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28107664/safety-and-efficacy-of-cardiopoietic-stem-cells-in-the-treatment-of-post-infarction-left-ventricular-dysfunction-from-cardioprotection-to-functional-repair-in-a-translational-pig-infarction-model
#2
Maximilian Y Emmert, Petra Wolint, Andras Jakab, Sean P Sheehy, Francesco S Pasqualini, Thi Dan Linh Nguyen, Monika Hilbe, Burkhardt Seifert, Benedikt Weber, Chad E Brokopp, Dominika Macejovska, Etem Caliskan, Arnold von Eckardstein, Ruth Schwartlander, Viola Vogel, Volkmar Falk, Kevin Kit Parker, Mariann Gyöngyösi, Simon P Hoerstrup
To date, clinical success of cardiac cell-therapies remains limited. To enhance the cardioreparative properties of stem cells, the concept of lineage-specification through cardiopoietic-guidance has been recently suggested. However, so far, only results from murine studies and from a clinical pilot-trial in chronic heart-failure (CHF) are available, while systematic evidence of its therapeutic-efficacy is still lacking. Importantly, also no data from large animals or for other indications are available. Therefore, we here investigate the therapeutic-efficacy of human cardiopoietic stem cells in the treatment of post-infarction LV-dysfunction using a translational pig-model...
November 23, 2016: Biomaterials
https://www.readbyqxmd.com/read/28107569/use-of-higher-maximum-doses-and-infusion-rates-compared-with-those-used-in-standard-unfractionated-heparin-therapy-is-associated-with-adequate-anticoagulation-without-increased-bleeding-in-both-obese-and-nonobese-patients-with-cardiovascular-indications
#3
Catherine K Floroff, Nicole M Palm, Daniel H Steinberg, Eric R Powers, Barbara S Wiggins
STUDY OBJECTIVE: To evaluate the time to achieve therapeutic activated partial thromboplastin time (aPTT) values and occurrence of bleeding based on standard unfractionated heparin (UFH) weight-based dosing recommendations compared with an aggressive weight-based UFH dosing strategy using higher maximum doses and infusion rates in both obese and nonobese patients who presented with non-ST-Segment Elevation Myocardial Infarction or unstable angina (NSTEMI/UA) or atrial fibrillation. DESIGN: Retrospective cohort study...
January 20, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28107561/beta-blockers-for-hypertension
#4
REVIEW
Charles S Wiysonge, Hazel A Bradley, Jimmy Volmink, Bongani M Mayosi, Lionel H Opie
BACKGROUND: Beta-blockers refer to a mixed group of drugs with diverse pharmacodynamic and pharmacokinetic properties. They have shown long-term beneficial effects on mortality and cardiovascular disease (CVD) when used in people with heart failure or acute myocardial infarction. Beta-blockers were thought to have similar beneficial effects when used as first-line therapy for hypertension. However, the benefit of beta-blockers as first-line therapy for hypertension without compelling indications is controversial...
January 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28107455/staged-versus-one-time-complete-revascularization-with-percutaneous-coronary-intervention-in-stemi-patients-with-multivessel-disease-a-systematic-review-and-meta-analysis
#5
Zhenwei Li, Yijiang Zhou, Qingqing Xu, Xiaomin Chen
INTRODUCTION: In patients with acute ST-elevation myocardial infarction (STEMI), the preferred intervention is percutaneous coronary intervention (PCI).Whether staged PCI (S-PCI) or one-time complete PCI (MV-PCI) is more beneficial and safer in terms of treating the non-culprit vessel during the primary PCI procedure is unclear. We performed a meta-analysis of all randomized and non-randomized controlled trials comparing S-PCI with MV-PCI in patients with acute STEMI and MVD. METHODS: Studies of STEMI with multivessel disease receiving primary PCI were searched in PUBMED, EMBASE and The Cochrane Register of Controlled Trials from January 2004 to December 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28107211/type-2-myocardial-infarction-incidence-presentation-treatment-and-outcome-in-routine-clinical-practice
#6
Dragana Radovanovic, Thomas Pilgrim, Burkhardt Seifert, Philip Urban, Giovanni Pedrazzini, Paul Erne
AIMS: The clinical definition and optimal treatment for myocardial infarction (MI) type 2 (T2MI) are not well established. We assessed differences in presentation, treatment and outcomes of patients with MI type 1 (T1MI) and T2MI. METHODS: The data of MI patients enrolled in the AMIS Plus cohort with T2MI were compared with T1MI using propensity score matching. RESULTS: A total of 13 829 patients had T1MI and 1091 (7.3%) T2MI. Patients with T2MI were older, often female, with more risk factors and comorbidities, and less ST segment elevation...
January 19, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28107200/variants-in-anril-gene-correlated-with-its-expression-contribute-to-myocardial-infarction-risk
#7
Jie Cheng, Meng-Yun Cai, Yu-Ning Chen, Zhi-Cheng Li, Sai-Sai Tang, Xi-Li Yang, Can Chen, Xinguang Liu, Xing-Dong Xiong
ANRIL (antisense non-coding RNA in the INK4 locus), located at the 9p21.3 locus, has been known to be closely associated with the risk of coronary artery disease (CAD). To date, studies of the 9p21.3 variants on CAD risk mainly focus on the non-coding region of ANRIL. However, the biological significance of the variants on ANRIL promoter and exons is still unknown. Here we investigate whether the variants on ANRIL promoter and exons have an effect on myocardial infarction (MI) risk, and further analyze the association of these variants with the expression of ANRIL transcript...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107026/impact-of-mobile-intensive-care-unit-use-on-total-ischemic-time-and-clinical-outcomes-in-st-elevation-myocardial-infarction-patients-real-world-data-from-the-acute-coronary-syndrome-israeli-survey
#8
Edward Koifman, Roy Beigel, Zaza Iakobishvili, Nir Shlomo, Yitschak Biton, Avi Sabbag, Elad Asher, Shaul Atar, Shmuel Gottlieb, Ronny Alcalai, Doron Zahger, Amit Segev, Ilan Goldenberg, Rafael Strugo, Shlomi Matetzky
BACKGROUND: Ischemic time has prognostic importance in ST-elevation myocardial infarction patients. Mobile intensive care unit use can reduce components of total ischemic time by appropriate triage of ST-elevation myocardial infarction patients. METHODS: Data from the Acute Coronary Survey in Israel registry 2000-2010 were analyzed to evaluate factors associated with mobile intensive care unit use and its impact on total ischemic time and patient outcomes. RESULTS: The study comprised 5474 ST-elevation myocardial infarction patients enrolled in the Acute Coronary Survey in Israel registry, of whom 46% ( n=2538) arrived via mobile intensive care units...
January 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28106621/mortality-risk-reductions-from-substituting-screen-time-by-discretionary-activities
#9
Katrien Wijndaele, Stephen J Sharp, Nicholas J Wareham, Søren Brage
PURPOSE: Leisure-screen-time, including TV viewing, is associated with increased mortality risk. We estimated the all-cause mortality risk reductions associated with substituting leisure-screen-time with different discretionary physical activity types, and the change in mortality incidence associated with different substitution scenarios. METHODS: 423,659 UK Biobank participants, without stroke, myocardial infarction or cancer history, were followed for 7.6 (1.4) (median (IQR)) years...
January 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28106619/video-assisted-thoracic-surgery-in-patients-with-previous-sternotomy-and-cardiac-surgery
#10
Derek R Serna-Gallegos, Heather E Merry, Robert J McKenna
OBJECTIVE: Although video-assisted thoracic surgery (VATS) lobectomy has become a standard approach for early-stage 1 lung cancer, concerns exist regarding potential damage to the heart or bypass grafts when VATS is performed after cardiac surgery via median sternotomy. We could find only case reports regarding VATS lobectomy after sternotomy for cardiac surgery. Therefore, we reviewed our series of patients who underwent VATS anatomic resections after sternotomy for cardiac surgery. METHODS: Between 1996 and 2010, there were 87 patients who underwent 88 pulmonary resections after sternotomy for coronary artery bypass grafting (64), valve replacement or repair (12), coronary artery bypass graft and valve replacement (6), and transplant (5)...
January 19, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28106470/grace-score-validation-in-predicting-hospital-mortality-analysis-of-the-role-of-sex
#11
Eva de-Miguel-Balsa, Jaime Latour-Pérez, Anna Baeza-Román, Cristina Amorós-Verdú, Juan Antonio Fernández-Lozano
BACKGROUND: The GRACE (Global Registry of Acute Coronary Events) risk score is recommended for risk stratification in acute coronary syndrome (ACS). It does not include sex, a variable strongly associated with ACS prognosis. The aim of this study was to examine if sex adds prognostic information to the GRACE score in a contemporary population. MATERIALS AND METHODS: Analysis of discrimination and calibration of GRACE score in the validation population, derived from the ARIAM-SEMICYUC registry (2012-2015)...
January 20, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28106027/-all-diuretics-used-in-the-treatment-of-hypertension-are-not-the-same
#12
Serkan Asil, Enver Atalar
Diuretics have been used for years to treat hypertension as both a monotherapy and in combination. Hydrochlorothiazide, indapamide, and chlorthalidone have frequently been considered in the same category as thiazide diuretics, but there is no evidence that their activities are similar. Studies have shown that chlorthalidone and indapamide reduce cardiovascular morbidity and mortality; however, there is no study indicating that hydrochlorothiazide has beneficial effects on cardiovascular outcomes such as myocardial infarction, renal failure, stroke, or death...
January 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28106020/renin-angiotensin-aldosterone-system-blockers-and-cardiovascular-outcomes-a-meta-analysis-of-randomized-clinical-trials
#13
Pınar Kızılırmak, Yağız Üresin, Oktay Özdemir, Burçak Kılıçkıran Avcı, Lale Tokgözoğlu, Zeki Öngen
OBJECTIVE: Hypertension is the most prevalent modifiable risk factor for cardiovascular (CV) and cerebrovascular morbidity and mortality. This study aimed to assess the effects of renin-angiotensin-aldosterone system (RAAS) blockade on CV outcomes. METHODS: This study was designed according to the Preferred Reporting Items for Systemic reviews and Meta-Analyses statement. Databases were searched for articles published as of December 2014. Two sets of studies were selected...
January 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28105979/human-dental-pulp-stem-cells-are-more-effective-than-human-bone-marrow-derived-mesenchymal-stem-cells-in-cerebral-ischemic-injury
#14
Miyeoun Song, Jae-Hyung Lee, Jinhyun Bae, Youngmin Bu, Eun-Cheol Kim
We compared the therapeutic effects and mechanism of transplanted human dental pulp stem cells (hDPSCs) and human bonemarrow-derived mesenchymal stem cells (hMSCs) in a stroke model of rats and an <i>in vitro</i> ischemic model. Both hDPSCs- and hMSCs- intravenously injected rats 24&#8201;h after middle cerebral artery occlusion showed improved functional recovery and reduced infarct volume versus control rats, but the hDPSCs group showed greater reduction in infarct volume than hMSCs. The positive area for the endothelial cell marker was greater in the lesion boundary areas in the hDPSCs group than with hMSCs...
January 20, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28105763/triggering-of-acute-myocardial-infarction-by-respiratory-infection
#15
Lorcan Ruane, Thomas Buckley, Soon Y Soo Hoo, Peter S Hansen, Catherine McCormack, Elizabeth Shaw, Judith Fethney, Geoffrey H Tofler
BACKGROUND: Respiratory infection has been associated with an increased short term risk of myocardial infarction (MI). However, previous studies have predominantly been conducted without angiographic confirmation of MI. The possibility can therefore not be excluded that raised troponin levels or electrocardiogram abnormalities that may be seen with respiratory infections are due to non-ischaemic causes. AIMS: To investigate the association between respiratory infection and angiographically confirmed MI...
January 20, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28105561/the-rise-and-fall-of-anticoagulation-with-bivalirudin-during-percutaneous-coronary-interventions-a-review-article
#16
REVIEW
Constantinos Andreou, Christos Maniotis, Michael Koutouzis
Bivalirudin is a direct thrombin inhibitor used during percutaneous coronary intervention (PCI). Treatment with bivalirudin compared to heparin plus glycoprotein IIb/IIIa inhibitors (GPI) reduced bleeding complications, but resulted in higher rates of ischemic events, including acute stent thrombosis in ST segment elevation myocardial infarction (STEMI) patients. Thus, it may be considered a reasonable alternative antithrombotic agent in patients at high risk of bleeding undergoing PCI. However its superiority over heparin alone is questioned particularly in the era of novel antiplatelet agents and transradial PCI...
January 19, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28105480/-cardiac-remodeling-after-myocardial-infarction-clinical-practice-update
#17
G Ertl, S Brenner, C E Angermann
Heart failure remains a frequent cause of death and is the leading reason for hospitalization in Germany although therapeutic options have significantly increased over the past years particularly in heart failure with reduced ejection fraction. Clinical symptoms are usually preceded by cardiac remodeling, which was originally defined only by left ventricular dilatation and depressed function but is also associated with typical cellular and molecular processes. Healing after acute myocardial infarction is characterized by inflammation, cellular migration and scar formation...
January 19, 2017: Herz
https://www.readbyqxmd.com/read/28105343/increased-complements-and-high-sensitivity-c-reactive-protein-predict-heart-failure-in-acute-myocardial-infarction
#18
Danni Liu, Xin Qi, Qi Li, Wenjun Jia, Liping Wei, Anan Huang, Keqiang Liu, Zongjin Li
The aim of the present study was to investigate whether the serum levels of complements and high-sensitivity C-reactive protein (hs-CRP) in patients with acute myocardial infarction (AMI) are associated with the severity of myocardial injury. Consecutive patients (n=110) with AMI and 33 healthy individuals, who served as control subjects, were enrolled from May 2013 to February 2015. These patients were divided into two groups, those with ST segment elevation MI (STEMI) and those with non-ST segment elevation MI (NSTEMI)...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28105141/conservative-pharmacotherapy-vs-staged-percutaneous-coronary-intervention-for-non-culprit-vessels-in-patients-with-st-segment-elevation-myocardial-infarction
#19
Bo Zhao, Jianjun Peng, Lihui Ren, Licheng Lei, Zuoyan Wang, Huiming Ye
The present study aimed to compare the effect of conservative pharmacotherapy (CP) and staged percutaneous coronary intervention (SPCI) on significant non-culprit vessels in patients with ST-segment elevation myocardial infarction (STEMI). A total of 266 male and 40 female patients were divided into two groups following their first successful PCI treatment: i) Patients in the complete revascularization (CR) group undergoing SPCI; and ii) patients in the CP group undergoing CP. Follow-up data were collected at 180 or 360 days after surgery to compare the rates of major adverse cardiovascular events (MACE), recurrent myocardial infarction, recurrent angina pectoris and MACE-free survival rates between the two groups...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28105138/clinical-and-angiographic-correlation-of-high-sensitivity-c-reactive-protein-with-acute-st-elevation-myocardial-infarction
#20
Syed Tanveer, Shaheena Banu, Nasimudeen Rehumathbeevi Jabir, Mohd Shahnawaz Khan, Ghulam Md Ashraf, Nanjappa Cholenahally Manjunath, Shams Tabrez
Vascular inflammation and associated ongoing inflammatory responses are considered as the critical culprits in the pathogenesis of acute atherothrombotic events such as acute coronary syndrome (ACS) and myocardial infarction (MI). ST segment elevation myocardial infarction (STEMI) is considered as one of the prominent clinical forms of ACS. Moreover, C-reactive protein (CRP) is an important acute phase prsotein, which may be estimated using high-sensitivity methods (hs-CRP), and its elevated level in body fluids reflects chronic inflammatory status...
December 2016: Experimental and Therapeutic Medicine
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