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Myocardial infarction II type

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https://www.readbyqxmd.com/read/28525896/activation-of-cannabinoid-receptor-type-ii-by-am1241-protects-adipose-derived-mesenchymal-stem-cells-from-oxidative-damage-and-enhances-their-therapeutic-efficacy-in-myocardial-infarction-mice-via-stat3-activation
#1
Dong Han, Xiang Li, Wen-Si Fan, Jiang-Wei Chen, Tian-Tian Gou, Tao Su, Miao-Miao Fan, Meng-Qi Xu, Ya-Bin Wang, Sai Ma, Ya Qiu, Feng Cao
The poor survival of cells in ischemic sites diminishes the therapeutic efficacy of stem cell therapy. Previously we and others have reported that Cannabinoid receptor type II (CB2) is protective during heart ischemic injury for its anti-oxidative activity. However, whether CB2 activation could improve the survival and therapeutic efficacy of stem cells in ischemic myocardium and the underlying mechanisms remain elusive. Here, we showed evidence that CB2 agonist AM1241 treatment could improve the functional survival of adipose-derived mesenchymal stem cells (AD-MSCs) in vitro as well as in vivo...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28501115/postconditioning-attenuates-coronary-perivascular%C3%A2-and-interstitial-fibrosis-through-modulating-angiotensin-ii-receptors-and-angiotensin-converting-enzyme-2-after-myocardial-infarction
#2
Zhang-Feng Wang, Ning-Ping Wang, Suzanna Harmouche, Tiji Philip, Xue-Fen Pang, Feng Bai, Zhi-Qing Zhao
BACKGROUND: Postconditioning (Postcon) is known to reduce infarct size. This study tested the hypothesis that Postcon attenuates the perivascular and interstitial fibrosis after myocardial infarction through modulating angiotensin II-activated fibrotic cascade. MATERIALS AND METHODS: Male Sprague-Dawley rats were subjected to 45-min coronary occlusion followed by 1 and 6 wk of reperfusion. Postcon was applied at the onset of reperfusion with four cycles of 10/10-s reperfusion-ischemia at the onset of reperfusion...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28458899/takotsubo-cardiomyopathy-in-amiodarone-induced-hyperthyroidism
#3
Ismael Capel, Elisabet Tasa-Vinyals, Albert Cano-Palomares, Irene Bergés-Raso, Lara Albert, Mercedes Rigla, Assumpta Caixàs
SUMMARY: Takotsubo cardiomyopathy (TC) is an atypical, severe but reversible form of acute heart insufficiency. It typically presents with left ventricular failure, transient apical and mid-segments hypokinesis, absence of significant coronary stenosis and new electrographic abnormalities and/or elevation in serum cardiac enzymes. Although TC ('broken heart syndrome') has classically been associated with emotional trauma, evidence suggests that other precipitants might exist, including iatrogenic and thyroid-mediated forms...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28449974/in-hospital-acute-myocardial-infarction-a-case-of-type-ii-kounis-syndrome
#4
Rita Marinheiro, Pedro Amador, Filipa Semedo, Catarina Sá, Tatiana Duarte, Sara Gonçalves, Filipe Seixo, Rui Caria
Kounis syndrome (KS) is the coincidental occurrence of acute coronary syndrome (ACS) and anaphylactic or allergic insult. It results from mast cell degranulation with subsequent release of numerous inflammatory mediators, leading to coronary vasospasm or atheromatous plaque rupture. Diagnosis is clinical and based on the temporal relationship between the two events. Despite the growing number of reported cases, especially in southern Europe, the lack of awareness of this association may lead to under-reporting in Portugal...
April 24, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28427070/practical-lessons-from-protocol-t-for-the-management-of-diabetic-macular-edema
#5
Lekha Mukkamala, Neelakshi Bhagat, Marco Zarbin
PURPOSE: To review the results of Diabetic Retinopathy Clinical Research Network Protocol T, as applied to clinical practice. METHODS: Review of major publications reporting the results of Protocol T, a randomized single-masked (in year-1 only), multicenter clinical trial comparing aflibercept, bevacizumab, and ranibizumab as treatment option for center-involving diabetic macular edema (DME). The main outcome measures were change in visual acuity (VA), central subfield thickness (CST) on optical coherence tomography, cost effectiveness, burden of care, and safety...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28400916/angiotensin-receptor-blocker-drugs-and-inhibition-of-adrenal-beta-arrestin-1-dependent-aldosterone-production-implications-for-heart-failure-therapy
#6
EDITORIAL
Anastasios Lymperopoulos, Beatrix Aukszi
Aldosterone mediates many of the physiological and pathophysiological/cardio-toxic effects of angiotensin II (AngII). Its synthesis and secretion from the zona glomerulosa cells of the adrenal cortex, elevated in chronic heart failure (HF), is induced by AngII type 1 receptors (AT1Rs). The AT1R is a G protein-coupled receptor, mainly coupling to Gq/11 proteins. However, it can also signal through β-arrestin-1 (βarr1) or -2 (βarr2), both of which mediate G protein-independent signaling. Over the past decade, a second, Gq/11 protein-independent but βarr1-dependent signaling pathway emanating from the adrenocortical AT1R and leading to aldosterone production has become appreciated...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28382073/at1-receptor-modulator-attenuates-the-hypercholesterolemia-induced-impairment-of-the-myocardial-ischemic-post-conditioning-benefits
#7
Yun-Wei Li, Yan-Ming Li, Yan Hon, Qi-Lin Wan, Rui-Li He, Zhi-Zhong Wang, Cui-Hua Zhao
BACKGROUND AND OBJECTIVES: Ischemic post-conditioning (PostC) has been demonstrated as a novel strategy to harness nature's protection against myocardial ischemia-reperfusion (I/R). Hypercholesterolemia (HC) has been reported to block the effect of PostC on the heart. Angiotensin II type-1 (AT1) modulators have shown benefits in myocardial ischemia. The present study investigates the effect of a novel inhibitor of AT1, azilsartan in PostC of the heart of normocholesterolemic (NC) and HC rats...
March 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28372554/selective-enrollment-in-disease-management-programs-for-coronary-heart-disease-in-germany-an-analysis-based-on-cross-sectional-survey-and-administrative-claims-data
#8
Julia Röttger, Miriam Blümel, Reinhard Busse
BACKGROUND: In 2002, Disease Management Programs (DMPs) were introduced within the German healthcare system with the aim to increase the quality of chronic disease care. Due to the enrollment procedures, it can be assumed a) that only certain patients actively decide to enroll in a DMP and/or b) that only certain patients get the recommendation for DMP enrollment from their physician. How strong this assumed effect of self- and/or professional selection is, is still unclear. METHODS: We used data from a cross-sectional postal-survey linked on individual level with administrative claims data from a German sickness fund...
April 4, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28259577/outcomes-of-fenestrated-and-branched-endovascular-repair-of-complex-abdominal-and-thoracoabdominal-aortic-aneurysms
#9
Andres Schanzer, Jessica P Simons, Julie Flahive, Jonathan Durgin, Francesco A Aiello, Danielle Doucet, Robert Steppacher, Louis M Messina
BACKGROUND: More than 80% of infrarenal aortic aneurysms are treated by endovascular repair. However, adoption of fenestrated and branched endovascular repair for complex aortic aneurysms has been limited, despite high morbidity and mortality associated with open repair. There are few published reports of consecutive outcomes, inclusive of all fenestrated and branched endovascular repairs, starting from the inception of a complex aortic aneurysm program. Therefore, we examined a single center's consecutive experience of fenestrated and branched endovascular repair of complex aortic aneurysms...
March 1, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259366/mechanical-support-with-venoarterial-extracorporeal-membrane-oxygenation-ecmo-va-short-term-and-long-term-prognosis-after-a-successful-weaning
#10
R García-Gigorro, E Renes-Carreño, J L Pérez-Vela, H Marín-Mateos, J Gutiérrez, M A Corrés-Peiretti, J F Delgado, E Pérez-de la Sota, J M Cortina-Romero, J C Montejo-González
OBJECTIVE: Extracorporeal membrane oxygenation (ECMO) affords mechanical circulatory assistance associated to high mortality. However, weaning from such mechanical support may not imply improved short- or long-term survival. This study describes the characteristics and evolution of patients with refractory cardiogenic shock (RCS) subjected to venoarterial ECMO (VA-ECMO) in a hospital with a heart transplant program. DESIGN: A single-center, retrospective cohort study was carried out...
March 2, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28242257/exendin-4-inhibits-structural-remodeling-and-improves-ca-2-homeostasis-in-rats-with-heart-failure-via-the-glp-1-receptor-through-the-enos-cgmp-pkg-pathway
#11
Jingjing Chen, Dandan Wang, Fangai Wang, Shaobo Shi, Yuting Chen, Bo Yang, Yanhong Tang, Congxin Huang
The glucagon-like peptide-1 receptor (GLP-1R) agonist exendin-4 is a long-acting analog of GLP-1, which stimulates insulin secretion and is clinically used in the treatment of type 2 diabetes. Previous studies have demonstrated that GLP-1 agonists and analogs serve as cardioprotective factors in various conditions. Disturbances in calcium cycling are characteristic of heart failure (HF); therefore, the aim of this study was to investigate the effect of exendin-4 (a GLP-1 mimetic) on the regulation of calcium handling and to identify the underlying mechanisms in an HF rat model after myocardial infarction (MI)...
April 2017: Peptides
https://www.readbyqxmd.com/read/28222221/elastase-2-an-angiotensin-ii-generating-enzyme-contributes-to-increased-angiotensin-ii-in-resistance-arteries-of-mice-with-myocardial-infarction
#12
Christiane Becari, Marcondes A B Silva, Marina T Durand, Cibele M Prado, Eduardo B Oliveira, Mauricio S Ribeiro, Helio C Salgado, Maria Cristina O Salgado, Rita C Tostes
BACKGROUND AND PURPOSE: Angiotensin II (Ang II), whose generation largely depends on angiotensin-converting enzyme (ACE) activity, mediates most of the renin-angiotensin-system (RAS) effects. Elastase-2 (ELA-2), a chymotrypsin-serine protease elastase family member 2A, alternatively generates Ang II in rat arteries. Myocardial infarction (MI) leads to intense RAS activation, but mechanisms involved in Ang II-generation in resistance arteries are unknown. We hypothesized that ELA-2 contributes to vascular Ang II generation and cardiac damage in mice subjected to MI...
May 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28219356/bacopa-monnieri-extract-increases-rat-coronary-flow-and-protects-against-myocardial-ischemia-reperfusion-injury
#13
Sirintorn Srimachai, Sylvie Devaux, Celine Demougeot, Sarawut Kumphune, Nina D Ullrich, Ernst Niggli, Kornkanok Ingkaninan, Natakorn Kamkaew, C Norman Scholfield, Sompol Tapechum, Krongkarn Chootip
BACKGROUND: This study explored Bacopa monnieri, a medicinal Ayurvedic herb, as a cardioprotectant against ischemia/reperfusion injury using cardiac function and coronary flow as end-points. METHODS: In normal isolated rat hearts, coronary flow, left ventricular developed pressure, heart rate, and functional recovery were measured using the Langendorff preparation. Hearts were perfused with either (i) Krebs-Henseleit (normal) solution, (control), or with 30, 100 μg/ml B...
February 20, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28210012/echocardiographic-parameters-as-life-quality-predictors-in-patients-after-myocardial-infarction-treated-with-different-methods
#14
Alen Dzubur, Mevludin Mekic, Senad Pesto, Naser Nabil
INTRODUCTION: Cardiovascular diseases are the leading cause of death in most countries. The aim was to examine the quality of life and to determine the differences in the quality of life in patients one year after myocardial infarction and the relationship between quality of life and echocardiographic parameters in these patients. MATERIAL AND METHODS: The research was a prospective, clinical, epidemiological study and was conducted at the Clinic of Cardiology, University Clinical Center Sarajevo (UCCS)...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28207887/platelet-monocyte-derived-and-tissue-factor-carrying-circulating-microparticles-are-related-to-acute-myocardial-infarction-severity
#15
Gemma Chiva-Blanch, Kristian Laake, Peder Myhre, Vibeke Bratseth, Harald Arnesen, Svein Solheim, Lina Badimon, Ingebjørg Seljeflot
OBJECTIVE: Circulating microparticles (cMPs) are phospholipid-rich vesicles released from cells when activated or injured, and contribute to the formation of intracoronary thrombi. Tissue factor (TF, CD142) is the main trigger of fibrin formation and TF-carrying cMPs are considered one of the most procoagulant cMPs. Similar types of atherosclerotic lesions may lead to different types of AMI, although the mechanisms behind are unresolved. Therefore, we aimed to investigate the phenotype of cMPs found in plasma of ACS patients and its relation to AMI severity and thrombotic burden...
2017: PloS One
https://www.readbyqxmd.com/read/28197046/outcome-of-noncardiac-surgical-patients-admitted-to-a-multidisciplinary-intensive-care-unit
#16
Pradeep Kumar, M K Renuka, M S Kalaiselvan, A S Arunkumar
CONTEXT: Surgical procedures carry significant morbidity and mortality depending on the type of surgery and patients. There is a dearth of evidence from India on the outcome of surgical patients admitted to an Intensive Care Unit (ICU). AIMS: We aimed to describe the incidence and risk factors of postoperative complications and mortality in noncardiac surgical patients admitted to the ICU. SETTINGS AND DESIGN: This was a prospective observational study on all perioperative patients admitted to a multidisciplinary ICU for 18 months...
January 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28183505/10-year-clinical-outcome-after-randomization-to-treatment-by-sirolimus-%C3%A2-or-paclitaxel-eluting-coronary%C3%A2-stents
#17
Anders M Galløe, Henning Kelbæk, Leif Thuesen, Henrik S Hansen, Jan Ravkilde, Peter R Hansen, Evald H Christiansen, Ulrik Abildgaard, Ghita Stephansen, Jens F Lassen, Thomas Engstrøm, Jan Skov Jensen, Jørgen L Jeppesen, Niels Bligaard
BACKGROUND: First-generation drug-eluting coronary stents (DES) were introduced in 2003 to 2004, and their use resulted in a considerable reduction in the development of in-stent restenosis at the cost of an increased risk of late stent thromboses. OBJECTIVES: This study followed clinical outcomes of patients included in a large randomized trial for 10 years to enable detection of late changes in annual event rates that could necessitate medical attention. METHODS: A total of 2,098 unselected all-comer patients (50% with acute coronary syndrome) were randomly assigned to have a first-generation DES implanted...
February 14, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28179209/administration-of-anabolic-steroid-during-adolescence-induces-long-term-cardiac-hypertrophy-and-increases-susceptibility-to-ischemia-reperfusion-injury-in-adult-wistar-rats
#18
Fernando de Azevedo Cruz Seara, Raiana Andrade Quintanilha Barbosa, Dahienne Ferreira de Oliveira, Diorney Luiz Souza Gran da Silva, Adriana Bastos Carvalho, Andrea Claudia Freitas Ferreira, José Hamilton Matheus Nascimento, Emerson Lopes Olivares
Chronic administration of anabolic androgenic steroids (AAS) in adult rats results in cardiac hypertrophy and increased susceptibility to myocardial ischemia/reperfusion (IR) injury. Molecular analyses demonstrated that hyperactivation of type 1 angiotensin II (AT1) receptor mediates cardiac hypertrophy induced by AAS and also induces down-regulation of myocardial ATP-sensitive potassium channel (KATP), resulting in loss of exercise-induced cardioprotection. Exposure to AAS during adolescence promoted long-term cardiovascular dysfunctions, such as dysautonomia...
February 5, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28153993/preterm-delivery-and-maternal-cardiovascular-disease-in-young-and-middle-aged-adult-women
#19
Lauren J Tanz, Jennifer J Stuart, Paige L Williams, Eric B Rimm, Stacey A Missmer, Kathryn M Rexrode, Kenneth J Mukamal, Janet W Rich-Edwards
BACKGROUND: Preterm delivery has been shown to be associated with increased risk of cardiovascular disease (CVD), but it is unknown whether this risk remains after adjustment for prepregnancy lifestyle and CVD risk factors. METHODS: We examined the association between history of having delivered an infant preterm (<37 weeks) and CVD in 70 182 parous women in the Nurses' Health Study II. Multivariable Cox proportional-hazards models were used to estimate hazards ratios (HRs) and 95% confidence intervals (CIs) for CVD events (myocardial infarction and stroke, n=949); we also adjusted for intermediates to determine the proportion of the association between preterm and CVD accounted for by postpartum development of CVD risk factors...
February 7, 2017: Circulation
https://www.readbyqxmd.com/read/28138011/systematic-review-of-%C3%AE-blocker-aspirin-and-statin-in-critically-ill-patients-importance-of-severity-of-illness-and-cardiac-troponin
#20
Florence G Rothenberg, Michael B Clay, Hina Jamali, Robin H Vandivier-Pletsch
Non-cardiac critically ill patients with type II myocardial infarction (MI) have a high risk of mortality. There are no evidence-based interventions to mitigate this risk. We systematically reviewed the literature regarding the use of medications known to reduce mortality in patients with cardiac troponin (cTn) elevation due to type I MI (β blockers, statin, and aspirin) in studies of critically ill patients without Type I MI. All PubMed publications between 1976-2/19/16 were reviewed. Search terms included: β blocker or aspirin or statin and intensive care unit (ICU) or critically ill or sepsis; 497 primary references were obtained...
April 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
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