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https://www.readbyqxmd.com/read/28810603/intratracheal-administration-of-isosorbide-dinitrate-improves-pulmonary-artery-pressure-and-ventricular-remodeling-in-a-rat-model-of-heart-failure-following-myocardial-infarction
#1
Xuelian Wang, Qingqing Xu, Tianqi Li, Yaocong Rong, Weilin Hong, Yan Huang, Xingui Guo
Pulmonary hypertension due to left heart disease is associated with poor outcomes. This study investigated the beneficial effects of isosorbide dinitrate (ISDN) inhalation on pulmonary pressure and ventricular remodeling in a rat model of heart failure (HF) following myocardial infarction (MI). To assess the effect of ISDN on pulmonary pressure, 20 male Sprague-Dawley (SD) rats were randomized to four groups: Normal saline (NS) 1 ml/kg, ISDN 1 mg/kg, NS 3 ml/kg or ISDN 3 mg/kg following coronary ligation. Assessments included pulmonary and systemic artery pressure alterations, lung weight/body weight and plasma nitric oxide (NO) concentration...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28795995/toxic-myocarditis-caused-by-acetaminophen-in-a-multidrug-overdose
#2
Maxime Gosselin, Yann Dazé, Pascal Mireault, Marie Crahes
We report the case of an 18-year-old woman with personality disorders who was hospitalized a few hours after suicidal ingestion of acetaminophen, quetiapine, acetylsalicylic acid, and ethanol. Twelve hours after admission, severe liver damage was evident, but the patient was stable and awaiting hepatic transplantation. Electrolytes were successfully controlled. The condition of the liver stabilized. Cardiac biomarkers then deteriorated unexpectedly. Localized ST-segment elevations were noted on electrocardiogram, but angiography ruled out myocardial infarction...
August 9, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28776362/acute-heart-failure-and-rhabdomyolysis-a-clue-for-the-diagnosis-of-polymyositis-with-cardiac-involvement
#3
P Pinto-Lopes, L Carneiro-Leão, R Morais, J Pinheiro, A Vieira Lopes, P Bettencourt
Polymyositis is an idiopathic inflammatory myopathy, characterized by proximal muscle weakness and sometimes extramuscular manifestations. We report the case of a 51-year-old male, with history of complete heart block, which required pacemaker implantation, and subsequently heart failure, presenting to the emergency department with worsening of dyspnea and peripheral edema. He was admitted to the Internal Medicine ward with acute heart failure and started on diuretic therapy. During hospitalization, he was discovered to have marked rhabdomyolysis...
August 3, 2017: Reumatismo
https://www.readbyqxmd.com/read/28775009/myocardial-edema-on-t2-weighted-mri-new-marker-of-ischemia-reperfusion-injury-and-adverse-myocardial-remodeling
#4
EDITORIAL
Yuko Tada, Phillip C Yang
No abstract text is available yet for this article.
August 4, 2017: Circulation Research
https://www.readbyqxmd.com/read/28772053/heart-failure-awareness-survey-in-germany-general-knowledge-on-heart-failure-remains-poor
#5
Christine Zelenak, Sara Radenovic, Lindy Musial-Bright, Elvis Tahirovic, Mesud Sacirovic, Chong-Bin Lee, Diana Jahandar-Lashki, Simone Inkrot, Tobias Daniel Trippel, Andreas Busjahn, Djawid Hashemi, Rolf Wachter, Sabine Pankuweit, Stefan Störk, Burkert Pieske, Frank Edelmann, Hans-Dirk Düngen
AIMS: Previous studies demonstrated poor public awareness of heart failure (HF) compared with myocardial infarction and stroke. With respect to several activities to improve HF awareness in recent years, we present data on the development of HF awareness and information sources in Germany over 8 years. METHODS AND RESULTS: In 2007, 2012, and 2015, respectively, 2531, 359, and 171 respondents answered questions about causes, presentation, prognosis, and treatment of HF from a survey developed by the German Competence Network HF...
August 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28769792/danshen-chuanxiong-honghua-ameliorates-cerebral-impairment-and-improves-spatial-cognitive-deficits-after-transient-focal-ischemia-and-identification-of-active-compounds
#6
Xianhua Zhang, Wan Zheng, Tingrui Wang, Ping Ren, Fushun Wang, Xinliang Ma, Jian Wang, Xi Huang
Previously, we only apply a traditional Chinese medicine (TCM) Danshen-Chuanxiong-Honghua (DCH) for cardioprotection via anti-inflammation in rats of acute myocardial infarction by occluding coronary artery. Presently, we select not only DCH but also its main absorbed compound ferulic acid (FA) for cerebra protection via similar action of mechanism above in animals of the transient middle cerebral artery occlusion (tMCAO). We investigated whether oral administration of DCH and FA could ameliorate MCAO-induced brain lesions in animals...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28764773/quantification-of-both-the-area-at-risk-and-acute-myocardial-infarct-size-in-st-segment-elevation-myocardial-infarction-using-t1-mapping
#7
Heerajnarain Bulluck, Matthew Hammond-Haley, Marianna Fontana, Daniel S Knight, Alex Sirker, Anna S Herrey, Charlotte Manisty, Peter Kellman, James C Moon, Derek J Hausenloy
BACKGROUND: A comprehensive cardiovascular magnetic resonance (CMR) in reperfused ST-segment myocardial infarction (STEMI) patients can be challenging to perform and can be time-consuming. We aimed to investigate whether native T1-mapping can accurately delineate the edema-based area-at-risk (AAR) and post-contrast T1-mapping and synthetic late gadolinium (LGE) images can quantify MI size at 1.5 T. Conventional LGE imaging and T2-mapping could then be omitted, thereby shortening the scan duration...
August 1, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28747611/histone-deacetylase-1-inhibition-protects-against-hypoxia-induced-swelling-in-h9c2-cardiomyocytes-through-regulating-cell-stiffness
#8
Yi Li, Zhengyi Zhang, Xiangnan Zhou, Rui Li, Yan Cheng, Bo Shang, Yu Han, Bin Liu, Xiaodong Xie
BACKGROUND: The process of cardiomyocyte swelling involves changes of biomechanical properties and profiles of cellular genes. Although many genes have been proved to regulate cell edema of cardiomyocyte, the mechanisms involved in this event, as well as the biomechanical properties of swelling cell, remain unknown.Methods and Results:Whether histone deacetylase 1 (HDAC1) inhibition protects against hypoxia-induced H9c2 cardiomyocyte swelling is examined in this study. Hypoxia-induced changes in the biomechanical properties and cytoskeletal structure that are relevant to cell swelling were also determined...
July 26, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28738488/-pathological-features-at-autopsy-in-elderly-patients-with-acute-myocardial-infarction
#9
H Wang, F Fang, K Chai, Y Y Li, Y Luo, D G Liu, D P Liu, J F Yang
Objective: To analyze the cardiac pathological features of elderly coronary artery disease (CAD) patients (60 years and over) and evaluate the pathological features at autopsy and risk factors of patients with acute myocardial infarction (AMI). Methods: Data from 471 elderly patients (aged from 60 to 100 years old) with CAD confirmed by autopsy hospitalized in our hospital from April 1969 to October 2013 were retrospectively reviewed. Patients were divided into 2 groups: AMI group(n=128) with AMI as the primary cause of death and the rest served as control group(n=343)...
July 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28733072/early-myocardial-edema-after-acute-myocardial-infarction-is-stable-and-not-bimodal-in-humans-evidence-from-a-large-cmr-multicenter-study
#10
Thomas Stiermaier, Holger Thiele, Ingo Eitel
BACKGROUND: Experimental data reported a temporal pattern of myocardial edema following acute myocardial infarction (AMI). Therefore, the aim of this study was to assess the time course of myocardial edema in a large population of patients with ST-segment elevation myocardial infarction (STEMI). METHODS: Myocardium at risk (MAR), infarct size (IS) and myocardial salvage index (MSI) were compared according to the time between infarction and cardiovascular magnetic resonance (CMR) imaging in a large multicenter STEMI cohort (n=795)...
July 18, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28727209/a-dual-flip-angle-3d-bssfp-magnetization-transfer-like-method-to-differentiate-between-recent-and-old-myocardial-infarction
#11
Philippe Germain, Soraya El Ghannudi, Aissam Labani, Mi Y Jeung, Afshin Gangi, Patrick Ohlmann, Catherine Roy
BACKGROUND: Magnetic resonance imaging (MRI) tissue signal is modulated by magnetization transfer (MT) phenomena, intrinsically induced by balanced steady-state free precession (bSSFP) imaging. PURPOSE: To investigate the possible value of such a MT-like bSSFP approach in two clinical settings involving focal myocardial lesions highligthed by late gadolinium enhancement (LGE+): edema induced by recent myocardial infarction (MI) and fibrotic scar related to chronic infarction...
July 20, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28712629/the-prime-diabetes-model-novel-methods-for-estimating-long-term-clinical-and-cost-outcomes-in-type-1-diabetes-mellitus
#12
William J Valentine, Richard F Pollock, Rhodri Saunders, Jay Bae, Kirsi Norrbacka, Kristina Boye
BACKGROUND: Recent publications describing long-term follow-up from landmark trials and diabetes registries represent an opportunity to revisit modeling options in type 1 diabetes mellitus (T1DM). OBJECTIVES: To develop a new product-independent model capable of predicting long-term clinical and cost outcomes. METHODS: After a systematic literature review to identify clinical trial and registry data, a model was developed (the PRIME Diabetes Model) to simulate T1DM progression and complication onset...
July 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28707493/ab-chminaca-induced-sudden-death-from-non-cardiogenic-pulmonary-edema
#13
Hideyuki Maeda, Ruri Kikura-Hanajiri, Maiko Kawamura, Erika Nagashima, Ken-Ichi Yoshida
CONTEXT: Despite widespread use of diverse synthetic cannabinoid (sCB) compounds, the pathophysiology associated with intoxication with many sCB compounds, including AB-CHMINACA, is poorly understood, as is their metabolism and distribution into blood and organs. CASE DETAILS: A young man died shortly after ingesting an herb product containing sCB compounds. Toxicological analyses of blood samples revealed high levels of AB-CHMINACA (7.61 ± 0.59 ng/mL) and its metabolites (M2, 56...
July 14, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28687810/full-left-ventricular-coverage-is-essential-for-the-accurate-quantification-of-the-area-at-risk-by-t1-and-t2-mapping
#14
Heerajnarain Bulluck, Jennifer A Bryant, Mei Xing Lim, Xiao Wei Tan, Manish Ramlall, Rohin Francis, Tushar Kotecha, Hector A Cabrera-Fuentes, Daniel S Knight, Marianna Fontana, James C Moon, Derek J Hausenloy
T2-weighted cardiovascular magnetic resonance (CMR) using a 3-slice approach has been shown to accurately quantify the edema-based area-at-risk (AAR) in ST-segment elevation myocardial infarction (STEMI). We aimed to compare the performance of a 3-slice approach to full left ventricular (LV) coverage for the AAR by T1 and T2 mapping and MI size. Forty-eight STEMI patients were prospectively recruited and underwent a CMR at 4 ± 2 days. There was no difference between the AARfull LV and AAR3-slices by T1 (P = 0...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28687712/dynamic-edematous-response-of-the-human-heart-to-myocardial-infarction-implications-for-assessing-myocardial-area-at-risk-and-salvage
#15
Rodrigo Fernández-Jiménez, Manuel Barreiro-Pérez, Ana Martin-García, Javier Sánchez-González, Jaume Agüero, Carlos Galán-Arriola, Jaime García-Prieto, Elena Díaz-Pelaez, Pedro Vara, Irene Martinez, Ivan Zamarro, Beatriz Garde, Javier Sanz, Valentin Fuster, Pedro L Sánchez, Borja Ibanez
Background -Clinical protocols aimed to characterize the post-myocardial infarction (MI) heart by cardiac magnetic resonance (CMR) need to be standardized to take account of dynamic biological phenomena evolving early after the index ischemic event. Here we evaluated the time-course of edema reaction in ST-segment elevation MI (STEMI) patients by CMR and assessed its implications for myocardium-at-risk (MaR) quantification both in patients and in a large animal model. Methods -A total of 16 anterior STEMI patients successfully treated by primary angioplasty and 16 matched controls were prospectively recruited...
July 7, 2017: Circulation
https://www.readbyqxmd.com/read/28685801/can-cs-gas-induce-myocardial-infarction
#16
Lilia Zakhama, Wassim Ben Ameur, Saoussen Antit, Iskander Slama, Alaa Eddine Jallad, Sara Chenik, Mourad Masmoudi, Besma Herbegue, Elhem Boussabah, Moez Thameur, Soraya Ben Youssef
"2-chlorobenzylidene malononitrile" also named CS gas is the most used riot-control agent in the world. Its reputation as the least toxic tear gas explains its large use by different authorities. Early exposure to CS spray commonly induces visual irritation, skin reactions, with increased mucous secretion in order to temporarily incapacitate targeted people. However, there is a large agreement that safety data of this product is limited and further studies need to be performed since serious problems could occur after heavy exposure such as loss of consciousness, laryngospasm, pulmonary edema and hemorrhage...
October 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28680032/fentanyl-ameliorates-severe-acute-pancreatitis-induced-myocardial-injury-in-rats-by-regulating-nf-%C3%AE%C2%BAb-signaling-pathway
#17
Yayun Wang, Manhua Chen
BACKGROUND Acute pancreatitis (AP) is a sudden inflammation of the pancreas. It results in multiple, severe complications, and 15-20% of patients develop severe acute pancreatitis (SAP) with mortality as high as 30%. Consequently, it is imperative to develop an effective therapy for SAP. MATERIAL AND METHODS We used 30 adult male Sprague Dawley (SD) rats. Rats were randomly divided into 3 groups - sham, SAP, and fentanyl+SAP - with 10 rats in each group. An automatic biochemical analyzer was used to analyze the concentration of creatine kinase isoenzyme (CK-MB) and lactate dehydrogenase (LDH)...
July 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28678672/acute-versus-chronic-myocardial-infarction-diagnostic-accuracy-of-quantitative-native-t1-and-t2-mapping-versus-assessment-of-edema-on-standard-t2-weighted-cardiovascular-mr-images-for-differentiation
#18
Enver Tahir, Martin Sinn, Sebastian Bohnen, Maxim Avanesov, Dennis Säring, Christian Stehning, Bernhard Schnackenburg, Christine Eulenburg, Joshua Wien, Ulf K Radunski, Stefan Blankenberg, Gerhard Adam, Charles B Higgins, Maythem Saeed, Kai Muellerleile, Gunnar K Lund
Purpose To analyze the diagnostic accuracy of native T1 and T2 mapping compared with visual and quantitative assessment of edema on T2-weighted cardiac magnetic resonance (MR) images to differentiate between acute and chronic myocardial infarction. Materials and Methods This study had institutional ethics committee approval. Written informed consent was obtained from 67 consecutive patients (57 years ± 12; 78% men) with a first acute myocardial infarction, who were prospectively enrolled between April 2011 and June 2015...
July 3, 2017: Radiology
https://www.readbyqxmd.com/read/28676061/hemorrhage-promotes-inflammation-and-myocardial-damage-following-acute-myocardial-infarction-insights-from-a-novel-preclinical-model-and-cardiovascular-magnetic-resonance
#19
Nilesh R Ghugre, Mihaela Pop, Reuben Thomas, Susan Newbigging, Xiuling Qi, Jennifer Barry, Bradley H Strauss, Graham A Wright
BACKGROUND: Myocardial hemorrhage is a frequent complication following reperfusion in acute myocardial infarction and is predictive of adverse outcomes. However, it remains unsettled whether hemorrhage is simply a marker of a severe initial ischemic insult or directly contributes to downstream myocardial damage. Our objective was to evaluate the contribution of hemorrhage towards inflammation, microvascular obstruction and infarct size in a novel porcine model of hemorrhagic myocardial infarction using cardiovascular magnetic resonance (CMR)...
July 4, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28637776/targeting-of-extracellular-rna-reduces-edema-formation-and-infarct-size-and-improves-survival-after-myocardial-infarction-in-mice
#20
Philipp Stieger, Jan-Marcus Daniel, Christiane Thölen, Jochen Dutzmann, Kai Knöpp, Dursun Gündüz, Muhammad Aslam, Marian Kampschulte, Alexander Langheinrich, Silvia Fischer, Hector Cabrera-Fuentes, Yong Wang, Kai C Wollert, Johann Bauersachs, Rüdiger Braun-Dullaeus, Klaus T Preissner, Daniel G Sedding
BACKGROUND: Following myocardial infarction (MI), peri-infarct myocardial edema formation further impairs cardiac function. Extracellular RNA (eRNA) released from injured cells strongly increases vascular permeability. This study aimed to assess the role of eRNA in MI-induced cardiac edema formation, infarct size, cardiac function, and survival after acute MI and to evaluate the therapeutic potential of ribonuclease 1 (RNase-1) treatment as an eRNA-degrading intervention. METHODS AND RESULTS: C57BL/6J mice were subjected to MI by permanent ligation of the left anterior descending coronary artery...
June 21, 2017: Journal of the American Heart Association
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