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https://www.readbyqxmd.com/read/28622497/feline-panleukopenia-virus-is-not-associated-with-myocarditis-or-endomyocardial-restrictive-cardiomyopathy-in-cats
#1
Laura McEndaffer, Alex Molesan, Hollis Erb, Kathleen Kelly
Canine parvovirus-2 (CPV-2) is nearly indistinguishable from feline panleukopenia virus (FPV) and is a well-known cause of viral myocarditis in young puppies; however, it is not known whether either FPV or CPV-2 naturally infects feline cardiomyocytes and causes myocarditis. Endomyocarditis (EMC) and left ventricular endomyocardial fibrosis (LVEF), clinically known as "endomyocardial restrictive cardiomyopathy," are important feline heart diseases suspected to have an infectious etiology. A continuum is suggested with EMC representing the acute reaction to an unknown infectious agent and LVEF the chronic manifestation of repair...
July 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28596553/hematopoietic-id-deletion-triggers-endomyocardial-fibrotic-and-vascular-defects-in-the-adult-heart
#2
Corey Chang, Qingshi Zhao, J Patrick Gonzalez, Jung H Kim, Kamal Alzahrani, Dominic Del Re, Diego Fraidenraich
Inhibitor of DNA binding (Id) proteins play important roles in regulating cardiac development via paracrine signaling. Id1/Id3 knockout mice die at mid-gestation with multiple cardiac defects. Single Id knockout studies have not reported cardiomyopathies. To bypass embryonic lethality we used Tie2CRE-mediated recombination to conditionally delete Id1 against global Id3 ablation (Id cDKOs), which develops adult-onset dilated cardiomyopathy. We confirm upregulation of thrombospondin-1 (TSP1) in Id cDKO hearts...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28595207/eosinophilic-myocarditis-presenting-as-acute-coronary-syndrome
#3
Evrim Şimşek, Filiz Özerkan Çakan, Mustafa Akın
Eosinophilic myocarditis (EM) is a rare condition that may result from several heterogeneous eosinophilic diseases, including parasite infection, hypersensitivity reaction, vasculitis, and hypereosinophilic syndrome. Regardless of etiology, the disease may present with various cardiac conditions, such as acute coronary syndrome, heart failure, or arrhythmia. Irreversible endomyocardial fibrosis, which causes restrictive cardiomyopathy, occurs in the late phase of the disease. Early diagnosis and treatment is crucial to prevent disease progression...
June 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28582525/progressive-mitral-regurgitation-in-a-patient-with-tropical-endomyocardial-fibrosis
#4
Maki Nogi, Hiroyuki Okura, Azusa Sakagami, Hiroyuki Tamaki, Yoshihiko Saito
No abstract text is available yet for this article.
June 4, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28571597/clinical-characteristics-histopathological-features-and-clinical-outcome-of-methamphetamine-associated-cardiomyopathy
#5
Stephan Schürer, Karin Klingel, Marcus Sandri, Nicolas Majunke, Christian Besler, Reinhard Kandolf, Philipp Lurz, Michael Luck, Pia Hertel, Gerhard Schuler, Axel Linke, Norman Mangner
OBJECTIVES: This study aimed to assess characteristics including endomyocardial biopsy and outcome of patients with methamphetamine (MA)-associated cardiomyopathy in a series of patients treated in Germany. BACKGROUND: MA abuse is an increasing problem worldwide. METHODS: The cases of 30 consecutive MA-abusing patients with a left ventricular (LV) ejection fraction of <40% and endomyocardial biopsy performed at initial diagnosis were analyzed...
June 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28565750/myocardial-fibrosis-in-congenital-and-pediatric-heart-disease
#6
Jing Tian, Xinjiang An, Ling Niu
Cardiac fibrosis is a common phenomenon in different types of heart diseases, such as ischemic heart disease, inherited cardiomyopathy mutations, diabetes, and ageing and is associated with morbidity and mortality. Increased accumulation of extracellular matrix (ECM) that impacts cardiac function, is the underlying cause of fibrotic heart disease. There are four different types of cardiac fibrosis, including, reactive interstitial fibrosis, replacement fibrosis, infiltrative interstitial fibrosis and endomyocardial fibrosis...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28484397/current-understanding-of-the-pathophysiology-of-myocardial-fibrosis-and-its-quantitative-assessment-in-heart-failure
#7
REVIEW
Tong Liu, Deli Song, Jianzeng Dong, Pinghui Zhu, Jie Liu, Wei Liu, Xiaohai Ma, Lei Zhao, Shukuan Ling
Myocardial fibrosis is an important part of cardiac remodeling that leads to heart failure and death. Myocardial fibrosis results from increased myofibroblast activity and excessive extracellular matrix deposition. Various cells and molecules are involved in this process, providing targets for potential drug therapies. Currently, the main detection methods of myocardial fibrosis rely on serum markers, cardiac magnetic resonance imaging, and endomyocardial biopsy. This review summarizes our current knowledge regarding the pathophysiology, quantitative assessment, and novel therapeutic strategies of myocardial fibrosis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28460256/12-month-patterns-of-serum-markers-of-collagen-synthesis-transforming-growth-factor-and-connective-tissue-growth-factor-are-similar-in-new-onset-and-chronic-dilated-cardiomyopathy-in-patients-both-with-and-without-cardiac-fibrosis
#8
Paweł Rubiś, Sylwia Wiśniowska-Smiałek, Ewa Wypasek, Lucyna Rudnicka-Sosin, Marta Hlawaty, Agata Leśniak-Sobelga, Magdalena Kostkiewicz, Piotr Podolec
BACKGROUND: The dynamics of the extracellular matrix (ECM) fibrosis process in dilated cardiomyopathy (DCM) may be assessed non-invasively by means of serum markers of fibrosis. AIM: To explore the kinetics of serum markers of fibrosis during a 12-month follow-up in DCM. METHODS: We included 70 consecutive DCM patients (pts) (48±12.1years, EF 24.4±7.4%) with new-onset (n=35, duration <6months) and chronic DCM (n=35, >6months). Markers of collagen type I and III synthesis - procollagens type I and III carboxy- and amino-terminal peptides (PICP, PINP, PIIICP, PIIINP), and ECM metabolism controlling factors - tumor growth factor beta-1 (TGF1-β), and connective tissue growth factor (CTGF) - were measured in serum at baseline, and at 3- and 12-month follow-up...
April 28, 2017: Cytokine
https://www.readbyqxmd.com/read/28449778/histopathological-and-immunological-characteristics-of-tachycardia-induced-cardiomyopathy
#9
Karin A L Mueller, David Heinzmann, Karin Klingel, Petra Fallier-Becker, Reinhard Kandolf, Antonios Kilias, Britta Walker-Allgaier, Oliver Borst, Jörg Kumbrink, Thomas Kirchner, Harald Langer, Tobias Geisler, Jürgen Schreieck, Michael Gramlich, Meinrad Gawaz, Peter Seizer
BACKGROUND: Tachycardiomyopathy or tachycardia-induced cardiomyopathy (TCM) has been known for decades as a reversible form of nonischemic cardiomyopathy. However, its mechanism and properties remain poorly understood. OBJECTIVES: The current study investigated endomyocardial biopsy samples from patients with TCM and compared them with samples from patients with dilated cardiomyopathy (DCM) and inflammatory cardiomyopathy (ICM). METHODS: The study included 189 patients with new-onset heart failure and severely reduced ejection fraction not caused by valvular or ischemic heart disease...
May 2, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28435310/tropical-diseases-of-the-myocardium-a-review
#10
REVIEW
Zoe C Groom, Aristotle D Protopapas, Vasileios Zochios
Cardiovascular diseases are widely distributed throughout the world. Human parasitic infections are ubiquitous. Tropical parasites are increasingly recognized as causes of cardiovascular diseases. In this review, we address the most frequently reported parasites that directly infect the myocardium, including Trypanosoma cruzi, the protozoal causative agent of American trypanosomiasis (Chagas disease), and Taenia solium, the cestode causative agent of taeniasis and cysticercosis. We also discuss tropical endomyocardial fibrosis, trichinellosis and schistosomiasis...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/28412435/cmr-derived-extracellular-volume-fraction-as-a-marker%C3%A2-for-myocardial-fibrosis-the-importance-of-coexisting-myocardial-inflammation
#11
Julia Anna Lurz, Christian Luecke, David Lang, Christian Besler, Karl-Philipp Rommel, Karin Klingel, Reinhard Kandolf, Volker Adams, Katharina Schöne, Gerhard Hindricks, Gerhard Schuler, Axel Linke, Holger Thiele, Matthias Gutberlet, Philipp Lurz
OBJECTIVES: The aim of the present study was to evaluate whether extracellular volume fraction (ECV) can reliably inform on the extent of diffuse fibrosis in the simultaneous presence of myocardial inflammation, which has not been verified to date. BACKGROUND: Diffuse myocardial fibrosis is associated with unfavorable outcome in patients with cardiomyopathy, and is of prognostic relevance. Assessment of ECV bears promise for being a noninvasive surrogate parameter, but it may be altered by other pathologies...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28402411/impact-of-acute-hypertension-transients-on-diastolic-function-in-patients-with-heart-failure-with-preserved-ejection-fraction
#12
Candelas Pérez Del Villar, Konstantinos Savvatis, Begoña López, Mario Kasner, Pablo Martinez-Legazpi, Raquel Yotti, Arantxa González, Javier Díez, Francisco Fernández-Avilés, Carsten Tschöpe, Javier Bermejo
Aim: To address the mechanisms responsible for the increase in LV filling pressures induced by acute hypertension transients in patients with heart failure with preserved ejection fraction (HFpEF). Methods and results: Multiple-beat pressure-volume loops were recorded during inferior vena cava occlusion in 39 HFpEF patients and 20 controls during handgrip and atrial pacing. We measured the contribution of relaxation, elastic recoil, and stiffness to instantaneous diastolic pressure using a novel processing method...
April 11, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28392789/cd16-monocytes-and-skewed-macrophage-polarization-toward-m2-type-hallmark-heart-transplant-acute-cellular-rejection
#13
Thierry P P van den Bosch, Kadir Caliskan, Marina D Kraaij, Alina A Constantinescu, Olivier C Manintveld, Pieter J M Leenen, Jan H von der Thüsen, Marian C Clahsen-van Groningen, Carla C Baan, Ajda T Rowshani
BACKGROUND: During acute heart transplant rejection, infiltration of lymphocytes and monocytes is followed by endothelial injury and eventually myocardial fibrosis. To date, no information is available on monocyte-macrophage-related cellular shifts and their polarization status during rejection. Here, we aimed to define and correlate monocyte-macrophage endomyocardial tissue profiles obtained at rejection and time points prior to rejection, with corresponding serial blood samples in 25 heart transplant recipients experiencing acute cellular rejection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28331134/significance-and-value-of-endomyocardial-biopsy-based-on-our-own-experience
#14
REVIEW
Hatsue Ishibashi-Ueda, Taka-Aki Matsuyama, Keiko Ohta-Ogo, Yoshihiko Ikeda
Endomyocardial biopsy (EMB) has been established in parallel with the development of percutaneous catheter technology for the diagnosis of cardiac diseases. It was developed in the early 1960 s in Japan by Drs. Konno, Sakakibara and Sekiguchi of Tokyo Women's Medical University. EMB is a valuable and useful, but invasive, modality for making a definite diagnosis in diseases such as myocarditis and secondary cardiomyopathies, which are often difficult to diagnose by imaging modality alone. In the field of heart transplantation, the histology of EMB helps monitor rejection to allografts...
March 24, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28296375/-endomyocardial-fibrosis-associated-to-antiphospholipid-syndrome-case-report-and-review
#15
Carlos A Parquet, Jorge Curotto-Grasiosi, Rogelio A Machado, Bruno Peressotti, Matías B Padilla, Alberto L Bolaño
A 29-year-old man with a history of seizures, was admitted due to an episode of unconsciousness recovered and hypertension with renal disfunction. The electrocardiogram mimicked a hypertrophic cardiomyopathy, but, by Doppler echocardiography, this was discarded because it suggested endomyocardial fibrosis which was confirmed by cardiac magnetic resonance imaging with late enhancement. Since the episode of unconsciousness, brain imaging studies were performed showing vascular sequelae and microangiopathic lesions...
March 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28290178/multiple-valvular-complications-of-hypereosinophilic-syndrome
#16
Zoltán Pozsonyi, Szabolcs Benedek, Pál Sármán, Lívia Jánoskuti, Tivadar Hüttl, Astrid Apor
Endomyocardial fibrosis (EMF) is the most common cardiac abnormality in hyeperosinophilic syndrome (HES), sometimes complicated with mitral valve disease. Mitral valve disease without ventricular manifestation is very rare, however. Case reports link HES to prosthetic valve thrombosis (PVT), but the optimal type of prosthetic valve in HES is not known. Herein is reported the case of a young female HES patient with secondary mitral valve degeneration and severe regurgitation. A mechanical prosthetic valve was implanted six months after she was diagnosed with HES, but despite anticoagulation and antiplatelet therapy she developed PVT three months later...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28288987/plasma-and-cardiac-galectin-3-in-patients-with-heart-failure-reflects-both-inflammation-and-fibrosis-implications-for-its-use-as-a-biomarker
#17
Christian Besler, David Lang, Daniel Urban, Karl-Philipp Rommel, Maximilian von Roeder, Karl Fengler, Stephan Blazek, Reinhard Kandolf, Karin Klingel, Holger Thiele, Axel Linke, Gerhard Schuler, Volker Adams, Philipp Lurz
BACKGROUND: Galectin (Gal)-3 is a β-galactoside-binding lectin and currently intensely studied as a biomarker in heart failure. Gal-3 also exerts proinflammatory effects, at least in extracardiac tissues. Objective of this study was to characterize the relationship of plasma and myocardial Gal-3 levels with cardiac fibrosis and inflammation in patients with nonischemic dilated cardiomyopathy and inflammatory cardiomyopathy (iCMP). METHODS AND RESULTS: Endomyocardial biopsies and blood samples were obtained from patients with newly diagnosed cardiomyopathy and clinical suspicion of myocarditis...
March 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28285268/cardiac-manifestations-of-parasitic-diseases
#18
REVIEW
Maria Carmo P Nunes, Milton Henriques Guimarães Júnior, Adriana Costa Diamantino, Claudio Leo Gelape, Teresa Cristina Abreu Ferrari
The heart may be affected directly or indirectly by a variety of protozoa and helminths. This involvement may manifest in different ways, but the syndromes resulting from impairment of the myocardium and pericardium are the most frequent. The myocardium may be invaded by parasites that trigger local inflammatory response with subsequent myocarditis or cardiomyopathy, as occurs in Chagas disease, African trypanosomiasis, toxoplasmosis, trichinellosis and infection with free-living amoebae. In amoebiasis and echinococcosis, the pericardium is the structure most frequently involved with consequent pericardial effusion, acute pericarditis, cardiac tamponade or constrictive pericarditis...
May 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28278213/low-mmp-8-timp-1-reflects-left-ventricle-impairment-in-takotsubo-cardiomyopathy-and-high-timp-1-may-help-to-differentiate-it-from-acute-coronary-syndrome
#19
Olavi Parkkonen, Mikko T Nieminen, Paula Vesterinen, Taina Tervahartiala, Markus Perola, Veikko Salomaa, Pekka Jousilahti, Timo Sorsa, Pirkko J Pussinen, Juha Sinisalo
BACKGROUND: Matrix metalloproteinase 8 (MMP-8) is the most potent type-I collagen protease. Such collagen mainly constitutes the transient fibrosis in takotsubo cardiomyopathy (TTC) endomyocardial biopsies. High MMP-8 and tissue-inhibitor of matrix metalloproteinase-1 (TIMP-1) levels are implicated in acute coronary syndrome (ACS). We compared MMP-8 and TIMP-1 levels in consecutive TTC and ACS patients, and their association to TTC severity. METHODS AND RESULTS: In 45 acute serum samples of TTC, 2072 ACS and 1000 controls, TIMP-1 differed between ACS 146...
2017: PloS One
https://www.readbyqxmd.com/read/28253222/phenotyping-of-myocardial-fibrosis-in-hypertensive-patients-with-heart-failure-influence-on-clinical-outcome
#20
Susana Ravassa, Begoña López, Ramón Querejeta, Kattalin Echegaray, Gorka San José, María U Moreno, Francisco J Beaumont, Arantxa González, Javier Díez
OBJECTIVE: Myocardial fibrosis is associated with alterations in the cross-linking and deposition of collagen type I (CCL and CD, respectively). We aimed to evaluate whether the combination of circulating biomarkers of CCL [the carboxy-terminal telopeptide of collagen type I to matrix metalloproteinase-1 ratio (CITP : MMP-1)] and CD [the carboxy-terminal propeptide of procollagen type I (PICP)] identifies myocardial fibrosis phenotypes with distinct clinical outcome in hypertensive patients with heart failure...
April 2017: Journal of Hypertension
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