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https://www.readbyqxmd.com/read/29353381/effect-of-kaempferol-pretreatment-on-myocardial-injury-in-rats
#1
Anamika Vishwakarma, Thakur Uttam Singh, Soya Rungsung, Tarun Kumar, Arunvikram Kandasamy, Subhashree Parida, Madhu Cholenahalli Lingaraju, Ajay Kumar, Asok Kumar, Dinesh Kumar
The present study was undertaken to evaluate the effect of kaempferol in isoprenaline (ISP)-induced myocardial injury in rats. ISP was administered subcutaneously for two subsequent days to induce myocardial injury. Assessment of myocardial injury was done by estimation of hemodynamic functions, myocardial infarcted area, cardiac injury markers, lipid profile, oxidative stress, pro-inflammatory cytokines and histopathology of heart and liver. Rats pretreated with kaempferol showed reduction in the myocardial infarcted area and heart rate...
January 20, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29350681/aav-9-mediated-phosphatase-1-inhibitor-1-overexpression-improves-cardiac-contractility-in-unchallenged-mice-but-is-deleterious-in-pressure-overload
#2
D M Schwab, L Tilemann, R Bauer, M Heckmann, A Jungmann, M Wagner, J Burgis, C Vettel, H A Katus, A El-Armouche, O J Müller
The downregulation of β-adrenergic receptors (β-AR) and decreased cAMP-dependent protein kinase activity in failing hearts results in decreased phosphorylation and inactivation of phosphatase-inhibitor-1 (I-1), a distal amplifier element of β-adrenergic signaling, leading to increased protein phosphatase 1 activity and dephosphorylation of key phosphoproteins, including phospholamban. Downregulated and hypophosphorylated I-1 likely contributes to β-AR desensitization; therefore its modulation is a promising approach in heart failure treatment...
January 19, 2018: Gene Therapy
https://www.readbyqxmd.com/read/29350674/takotsubo-cardiomyopathy-in-an-ultra-centenarian-woman
#3
Laura Bonfanti, Silvia Buratti, Luigi Vignali, Giuseppe Lippi, Franco Masini, Michele Bianconcini, Gianfranco Cervellin
A 101 years-old woman was admitted to our Emergency Department (ED) for acute dyspnea which onset nearly two hours before presentation. She had been on hydrochlorothyazyde-amiloride therapy due to mild hypertension. No other relevant features were present in the clinical history. The old lady had never been admitted to the hospital, and she was still living alone. A few days before hospital admission, one of the daughters became ill, so that a caregiver was paid for assisting her 12/24. This new circumstance was reluctantly accepted by the old lady...
January 16, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29347987/determinants-of-long-term-outcome-in-icu-survivors-results-from-the-frog-icu-study
#4
Etienne Gayat, Alain Cariou, Nicolas Deye, Antoine Vieillard-Baron, Samir Jaber, Charles Damoisel, Qin Lu, Xavier Monnet, Isabelle Rennuit, Elie Azoulay, Marc Léone, Heikel Oueslati, Bertrand Guidet, Diane Friedman, Antoine Tesnière, Romain Sonneville, Philippe Montravers, Sébastien Pili-Floury, Jean-Yves Lefrant, Jacques Duranteau, Pierre-François Laterre, Nicolas Brechot, Karine Chevreul, Morgane Michel, Bernard Cholley, Matthieu Legrand, Jean-Marie Launay, Eric Vicaut, Mervyn Singer, Matthieu Resche-Rigon, Alexandre Mebazaa
BACKGROUND: Intensive care unit (ICU) survivors have reduced long-term survival compared to the general population. Identifying parameters at ICU discharge that are associated with poor long-term outcomes may prove useful in targeting an at-risk population. The main objective of the study was to identify clinical and biological determinants of death in the year following ICU discharge. METHODS: FROG-ICU was a prospective, observational, multicenter cohort study of ICU survivors followed 1 year after discharge, including 21 medical, surgical or mixed ICUs in France and Belgium...
January 18, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29347921/prospective-pre-and-post-race-evaluation-of-biochemical-electrophysiologic-and-echocardiographic-indices-in-30-racing-thoroughbred-horses-that-received-furosemide
#5
Catherine T Gunther-Harrington, Rick Arthur, Krista Estell, Beatriz Martinez Lopez, Alexandra Sinnott, Eric Ontiveros, Anita Varga, Joshua A Stern
BACKGROUND: Exercise induced cardiac fatigue (EICF) and cardiac dysrhythmias are well described conditions identified in high-level human athletes that increase in frequency with intensity and duration of exercise. Identification of these conditions requires an understanding of normal pre- and post-race cardiac assessment values. The objectives of this study were to (1) characterize selected indices of cardiac function, electrophysiologic parameters, and biochemical markers of heart dysfunction prior to and immediately after high level racing in Thoroughbred horses receiving furosemide; and (2) create pre- and post-race reference values in order to make recommendations on possible screening practices for this population in the future...
January 18, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29344381/impact-of-nutritional-indices-on-mortality-in-patients-with-heart-failure
#6
Akiomi Yoshihisa, Yuki Kanno, Shunsuke Watanabe, Tetsuro Yokokawa, Satoshi Abe, Makiko Miyata, Takamasa Sato, Satoshi Suzuki, Masayoshi Oikawa, Atsushi Kobayashi, Takayoshi Yamaki, Hiroyuki Kunii, Kazuhiko Nakazato, Hitoshi Suzuki, Takafumi Ishida, Yasuchika Takeishi
Background: Malnutrition is a common condition that is associated with adverse prognosis in patients with heart failure (HF). The Prognostic Nutritional Index (PNI), Geriatric Nutritional Risk Index (GNRI) and controlling nutritional status (CONUT) have all been used as objective indices for evaluating nutritional status. We aimed to clarify the relationship between these nutritional indices and the parameters of inflammatory markers, cardiac function and exercise capacity, as well as to compare the ability of these indexes for predicting mortality...
2018: Open Heart
https://www.readbyqxmd.com/read/29343971/assessment-of-the-cardiac-safety-between-cetuximab-and-panitumumab-as-single-therapy-in-chinese-chemotherapy-refractory-mcrc
#7
Xue-Miao Tang, Hao Chen, Qing Li, Yiling Song, Shuping Zhang, Xiao-Shuan Xu, Yiwei Xu, Shulin Chen
Objective: The cardiac safety of cetuximab and panitumumab, particularly as single agents, has not been investigated extensively. This trial was designed to specifically evaluate the cardiac safety of cetuximab and panitumumab as single therapy in Chinese chemotherapy-refractory metastatic colorectal cancer (mCRC) patients. Patients and methods: Sixty-one patients received cetuximab at an initial dose of 400 mg/m2 intravenously over 120 minutes on day 1 (week 1), followed by a maintenance dose of 250 mg/m2 intravenously over 60 minutes on day 1 of each 7-day cycle...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29343534/effect-of-acute-coronary-syndrome-probability-on-diagnostic-and-prognostic-performance-of-high-sensitivity-cardiac-troponin
#8
Patrick Badertscher, Jasper Boeddinghaus, Thomas Nestelberger, Raphael Twerenbold, Karin Wildi, Zaid Sabti, Christian Puelacher, Maria Rubini Giménez, Julian Pfäffli, Dayana Flores, Jeanne du Fay de Lavallaz, Òscar Miró, F Javier Martin-Sanchez, Beata Morawiec, Jens Lohrmann, Andreas Buser, Dagmar I Keller, Nicolas Geigy, Tobias Reichlin, Christian Mueller
BACKGROUND: There is concern that high-sensitivity cardiac troponin (hs-cTn) may have low diagnostic accuracy in patients with low acute coronary syndrome (ACS) probability. METHODS: We prospectively stratified patients presenting with acute chest discomfort to the emergency department (ED) into 3 groups according to their probability for ACS as assessed by the treating ED physician using a visual analog scale-≤10%, 11% to 79%, and ≥80%-reviewing all information available at 90 min...
January 17, 2018: Clinical Chemistry
https://www.readbyqxmd.com/read/29343532/clinical-laboratory-practice-recommendations-for-the-use-of-cardiac-troponin-in-acute-coronary-syndrome-expert-opinion-from-the-academy-of-the-american-association-for-clinical-chemistry-and-the-task-force-on-clinical-applications-of-cardiac-bio-markers-of
#9
Alan H B Wu, Robert H Christenson, Dina N Greene, Allan S Jaffe, Peter A Kavsak, Jordi Ordonez-Llanos, Fred S Apple
This document is an essential companion to the third iteration of the National Academy of Clinical Biochemistry [NACB,8 now the American Association for Clinical Chemistry (AACC) Academy] Laboratory Medicine Practice Guidelines (LMPG) on cardiac markers. The expert consensus recommendations were drafted in collaboration with the International Federation of Clinical Chemistry and Laboratory Medicine Task Force on Clinical Applications of Bio-Markers (IFCC TF-CB). We determined that there is sufficient clinical guidance on the use of cardiac troponin (cTn) testing from clinical practice groups...
January 17, 2018: Clinical Chemistry
https://www.readbyqxmd.com/read/29340731/sensitive-cardiac-troponins-could-they-be-new-biomarkers-in-pediatric-pulmonary-hypertension-due-to-congenital-heart-disease
#10
Seyma Kayali, Ilker Ertugrul, Tamer Yoldas, Ozkan Kaya, Senem Ozgür, Utku A Orün, Selmin Karademir
To analyze the role of sensitive cardiac troponin I (scTnI) and high-sensitive troponin T (hscTnT) in the determination of myocardial injury caused by volume and pressure load due to pulmonary hypertension (PH) and to investigate if these markers may be useful in the management of PH in childhood. Twenty-eight patients with congenital heart disease (CHD) with left to right shunt and PH, 29 patients with CHD with left to right shunt but without PH, and 18 healthy children, in total 75 individuals, were included in the study...
January 16, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29337067/the-impact-of-growth-factors-on-human-induced-pluripotent-stem-cells-differentiation-into-cardiomyocytes
#11
Marianne E Yassa, Iman A Mansour, Nadia I Sewelam, Hala Hamza, Taghrid Gaafar
Human induced pluripotent stem cells (hiPSCs) act as a promising therapeutic alternative for cardiovascular diseases. They yield a large number of functional cardiomyocytes (CMs) from autologous cell sources without ethical or immunological problems. However, significant limitations still remain in terms of line-to-line variability in CM yield and reproducibility. AIM: To efficiently enhance NP0040 hiPSCs differentiation into CMs. MAIN METHODS: Following a standard cardiac differentiation protocol using small molecules targeting the canonical Wnt signaling, growth factors (BMP4 and FGF2) and ascorbic acid were added further in order to increase the cardiac differentiation efficiency...
January 11, 2018: Life Sciences
https://www.readbyqxmd.com/read/29335288/prognostic-value-of-high-sensitivity-troponin-t-in-chronic-heart-failure-an-individual-patient-data-meta-analysis
#12
REVIEW
Alberto Aimo, James L Januzzi, Giuseppe Vergaro, Andrea Ripoli, Roberto Latini, Serge Masson, Michela Magnoli, Inder S Anand, Jay N Cohn, Luigi Tavazzi, Gianni Tognoni, Jørgen Gravning, Thor Ueland, Ståle H Nymo, Hans-Peter Brunner-La Rocca, Antoni Bayes-Genis, Josep Lupón, Rudolf A de Boer, Akiomi Yoshihisa, Yasuchika Takeishi, Michael Egstrup, Ida Gustafsson, Hanna K Gaggin, Kai M Eggers, Kurt Huber, Ioannis Tentzeris, Wai H W Tang, Justin Grodin, Claudio Passino, Michele Emdin
BACKGROUND: Most patients with chronic heart failure have detectable troponin concentrations when evaluated by high-sensitivity assays. The prognostic relevance of this finding has not been clearly established so far. We aimed to assess high-sensitivity troponin assay for risk stratification in chronic heart failure through a meta-analysis approach. METHODS: Medline, EMBASE, Cochrane Library, and Scopus were searched in April 2017 by 2 independent authors. The terms were "troponin" AND "heart failure" OR "cardiac failure" OR "cardiac dysfunction" OR "cardiac insufficiency" OR "left ventricular dysfunction...
January 16, 2018: Circulation
https://www.readbyqxmd.com/read/29335079/-expression-of-plasma-mirna-497-in-children-with-sepsis-induced-myocardial-injury-and-its-clinical-significance
#13
Zhong-Jing Wu, Ya-Feng Chen, Hai-Dao Wang, Fang-Hong Gao
OBJECTIVE: To study the expression of plasma miRNA-497 in children with sepsis-induced myocardial injury and its clinical significance. METHODS: A total of 148 children with sepsis were enrolled. According to the presence or absence of myocardial injury, these children were divided into myocardial injury group (n=58) and non-myocardial injury group (n=90). The two groups were compared in terms of the changes in plasma levels of miRNA-497, cardiac troponin I (cTnI), creatine kinase-MB (CK-MB), N-terminal pro-brain natriuretic peptide (NT-proBNP), procalcitonin (PCT), and C-reactive protein (CRP) and left ventricular ejection fraction (LVEF)...
January 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29333461/extracorporeal-shock-wave-therapy-for-coronary-artery-disease-relationship-of-symptom-amelioration-and-ischemia-improvement
#14
Youko Takakuwa, Masayoshi Sarai, Hideki Kawai, Akira Yamada, Kenji Shiino, Kayoko Takada, Yasuomi Nagahara, Meiko Miyagi, Sadako Motoyama, Hiroshi Toyama, Yukio Ozaki
Objectives: The current management of coronary artery disease (CAD) relies on three major therapeutic options, namely medication, percutaneous coronary intervention (PCI), and coronary artery bypass grafting (CABG). However, severe CAD that is not indicated for PCI or CABG still bears a poor prognosis due to the lack of effective treatments. In 2006, extracorporeal cardiac shock wave (SW) therapy reported on human for the first time. This treatment resulted in better myocardial perfusion as evaluated by dipyridamole stress thallium scintigraphy, angina symptoms, and exercise tolerance...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29332832/electrochemiluminescent-detection-of-cardiac-troponin-i-by-using-soybean-peroxidase-labeled-antibody-as-signal-amplifier
#15
Min Tang, Zhenxian Zhou, Li Shangguan, Fang Zhao, Songqin Liu
This work proposed an electrochemiluminescence (ECL) immunosensor for quantitative monitoring of cardiac troponin I (cTnI) in plasma with soybean peroxidase (SBP) labeled-antibody as signal amplifier. The ECL sandwich immunosensor was constructed by covalent binding anti-cTnI capture antibody (Ab1) to polyethylenimine-functionalized graphene matrix, which was obtained by a simple hydrothermal reaction between polyethylenimine (PEI) and graphene oxide (GO). After that, the SBP-labeled detection antibody (SBP-Ab2), synthesized by NaIO4 method, was immobilized on the surface of electrode through sandwich immunoreaction...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29330770/decoding-selection-bias-imparted-by-unpaired-cysteines-a-tug-of-war-between-expression-and-affinity
#16
B Vijayalakshmi Ayyar, Stephen Hearty, Richard O'Kennedy
In a recombinant antibody scFv format, the presence of an unpaired cysteine (Cys) is implicated in reduced soluble expression and inefficient presentation in phage display. Compared to other species, antibodies derived from rabbits are more likely to contain this unpaired Cys residue at position 80 (Cys80), when generated in a scFv format. In a screening campaign to isolate rabbit scFv against cardiac troponin I (cTnI), it was found that, a large proportion of isolated cTnI-specific clones contained unpaired Cys80...
January 12, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29328383/oxymatrine-protects-against-the-effects-of-cardiopulmonary-resuscitation-via-modulation-of-the-tgf-%C3%AE-1-smad3-signaling-pathway
#17
Dawei Wang, Xiao Qian Lou, Xiao-Ming Jiang, Chenxi Yang, Xiao-Liang Liu, Nan Zhang
Previous studies have demonstrated that oxymatrine may inhibit ventricular remodeling and serves an important role in the treatment of cardiovascular disease. The present study investigated whether oxymatrine treatment protects against the effects of cardiopulmonary resuscitation (CPR) via regulation of the transforming growth factor‑β1 (TGF‑β1)/mothers against decapentaplegic (Smad) signaling pathway. A CPR model was established in Sprague‑Dawley (SD) rats by asphyxiation, and rats were subsequently anaesthetized by intraperitoneal injection of chloral hydrate...
January 4, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29325368/-the-effects-and-related-mechanism-of-salvianolate-on-rats-with-myocardial-ischemia-reperfusion-injury
#18
R C Yue, X L Yang, R Y Zhang, S Liu, J Liu, J Zeng, H Liang, W Wang, H X Hu, C Y Zeng
Objective: To investigate the effect and related mechanism of salvianolate on myocardial ischemia-reperfusion (I/R) injury in rats. Methods: Thirty-six adult Sprague-Dawley rats were divided into three groups (n=12 each) using random number table method: control group (coronary artery was not ligated) , I/R group (myocardial I/R model was established by ligation and opening of left anterior descending coronary artery) , and salvianolate+I/R group (5 mg/kg of salvianolate was injected through the tail vein at the time of reperfusion) ...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29322198/association-of-cardiovascular-biomarkers-with-incident-heart-failure-with-preserved-and-reduced-ejection-fraction
#19
Rudolf A de Boer, Matthew Nayor, Christopher R deFilippi, Danielle Enserro, Vijeta Bhambhani, Jorge R Kizer, Michael J Blaha, Frank P Brouwers, Mary Cushman, Joao A C Lima, Hossein Bahrami, Pim van der Harst, Thomas J Wang, Ron T Gansevoort, Caroline S Fox, Hanna K Gaggin, Willem J Kop, Kiang Liu, Ramachandran S Vasan, Bruce M Psaty, Douglas S Lee, Hans L Hillege, Traci M Bartz, Emelia J Benjamin, Cheeling Chan, Matthew Allison, Julius M Gardin, James L Januzzi, Sanjiv J Shah, Daniel Levy, David M Herrington, Martin G Larson, Wiek H van Gilst, John S Gottdiener, Alain G Bertoni, Jennifer E Ho
Importance: Nearly half of all patients with heart failure have preserved ejection fraction (HFpEF) as opposed to reduced ejection fraction (HFrEF), yet associations of biomarkers with future heart failure subtype are incompletely understood. Objective: To evaluate the associations of 12 cardiovascular biomarkers with incident HFpEF vs HFrEF among adults from the general population. Design, Setting, and Participants: This study included 4 longitudinal community-based cohorts: the Cardiovascular Health Study (1989-1990; 1992-1993 for supplemental African-American cohort), the Framingham Heart Study (1995-1998), the Multi-Ethnic Study of Atherosclerosis (2000-2002), and the Prevention of Renal and Vascular End-stage Disease study (1997-1998)...
January 10, 2018: JAMA Cardiology
https://www.readbyqxmd.com/read/29321061/enoxaparin-attenuates-doxorubicin-induced-cardiotoxicity-in-rats-via-interfering-with-oxidative-stress-inflammation-and-apoptosis
#20
Reem Ali Shaker, Samer Hassan Abboud, Hayder Chasib Assad, Najah Hadi
BACKGROUND: Doxorubicin (DOX) is commonly used in the treatment of many types of cancers but its cardiotoxicity is limiting its clinical use. Beyond its anticoagulant action, enoxaparin (ENX), a low molecular weight heparin, has been shown to exert multiple pharmacological actions including antioxidant, anti-inflammatory and antiapoptotic effects. Therefore, the current study aimed to assess if ENX could ameliorate cardiotoxicity induced by DOX. METHODS: Twenty-one adult male Wistar albino rats were randomly allocated into three groups (n = 7 each) of control, receiving 0...
January 10, 2018: BMC Pharmacology & Toxicology
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