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Cardiac markers

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https://www.readbyqxmd.com/read/29333637/increased-free-zn2-correlates-induction-of-sarco-endo-plasmic-reticulum-stress-via-altered-expression-levels-of-zn2-transporters-in-heart-failure
#1
Yusuf Olgar, Aysegul Durak, Erkan Tuncay, Ceylan Verda Bitirim, Evren Ozcinar, Mustafa Bahadir Inan, Zeynep Tokcaer-Keskin, Kamil Can Akcali, Ahmet Ruchan Akar, Belma Turan
Zn2+ -homoeostasis including free Zn2+ ([Zn2+ ]i ) is regulated through Zn2+ -transporters and their comprehensive understanding may be important due to their contributions to cardiac dysfunction. Herein, we aimed to examine a possible role of Zn2+ -transporters in the development of heart failure (HF) via induction of ER stress. We first showed localizations of ZIP8, ZIP14 and ZnT8 to both sarcolemma and S(E)R in ventricular cardiomyocytes (H9c2 cells) using confocal together with calculated Pearson's coefficients...
January 15, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29331272/high-sensitivity-cardiac-troponin-and-new-onset-heart-failure-a-systematic-review-and-meta-analysis-of-67-063-patients-with-4-165-incident-heart-failure-events
#2
Jonathan D W Evans, Stephen J H Dobbin, Stephen J Pettit, Emanuele Di Angelantonio, Peter Willeit
OBJECTIVES: The aim of this study was to systematically collate and appraise the available evidence regarding the association between high-sensitivity cardiac troponin (hs-cTn) and incident heart failure (HF) and the added value of hs-cTn in HF prediction. BACKGROUND: Identification of subjects at high risk for HF and early risk factor modification with medications such as angiotensin-converting enzyme inhibitors may delay the onset of HF. Hs-cTn has been suggested as a prognostic marker for the incidence of first-ever HF in asymptomatic subjects...
January 3, 2018: JACC. Heart Failure
https://www.readbyqxmd.com/read/29329959/mir-21-suppression-prevents-cardiac-alterations-induced-by-d-galactose-and-doxorubicin
#3
Yihua Bei, Xiaoting Wu, Dragos Cretoiu, Jing Shi, Qiulian Zhou, Shenghui Lin, Hui Wang, Yan Cheng, Haifeng Zhang, Junjie Xiao, Xinli Li
d-galactose (d-gal)-induced cardiac alterations and Doxorubicin (Dox)-induced cardiomyocyte senescence are commonly used models to study cardiac aging. Accumulating evidence has suggested that microRNAs (miRNAs, miRs) are critically involved in the regulation of cellular and organismal aging and age-related diseases. However, little has been revealed about the roles of miRNAs in cardiac alterations induced by d-gal and Dox. In this study, we used miRNA arrays to investigate the dysregulated miRNAs in heart samples from 15month-old versus 2month-old male C57BL/6 mice and further validated them in d-gal-induced pseudo-aging mouse model and Dox-induced cardiomyocyte senescence in vitro model...
January 9, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29328539/early-detection-of-myocardial-involvement-by-t1-mapping-of-cardiac-mri-in-idiopathic-inflammatory-myopathy
#4
Liuyu Yu, Jianhong Sun, Jiayu Sun, Jiangbo Li, Yang Dong, Xiaoyue Zhou, Andreas Greiser, Yuchi Han, Qing Zhang, Qibing Xie, Yucheng Chen
BACKGROUND: Polymyositis (PM) and dermatomyositis (DM) are common types of idiopathic inflammatory myopathy (IIM), wherein patients are prone to adverse cardiovascular events. PURPOSE: To explore the value of cardiac magnetic resonance imaging (MRI) for detecting cardiac involvement in PM/DM patients using a T1 mapping technique. STUDY TYPE: Prospective observational study. POPULATION: In all, 25 PM/DM patients free of cardiovascular symptoms and preserved ventricular systolic function and 25 healthy volunteers matched for age and sex served as controls...
January 12, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29326821/age-sex-and-gene-expression-score-identifies-a-symptomatic-nondiabetic-male-patient-as-being-at-high-risk-of-obstructive-coronary-artery-disease
#5
Ronald J Polinsky
In October 2015, a 74-year-old Caucasian male patient (past medical history of hyperlipidemia, paroxysmal atrial fibrillation, hypertension, and hypothyroidism) presented to the cardiologist for follow-up outpatient evaluation of exertional chest pain. The patient had recently been seen at the Emergency Department for the same complaint. At that time, the patient's cardiac markers, EKG, and pharmacological nuclear stress testing were all reported as normal. At presentation to the cardiologist, the patient's physical examination findings were unremarkable...
2018: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29325933/sestrin2-prevents-age-related-intolerance-to-post-myocardial-infarction-via-ampk-pgc-1%C3%AE-pathway
#6
Nanhu Quan, Lin Wang, Xu Chen, Chelsea Luckett, Courtney Cates, Thomas Rousselle, Yang Zheng, Ji Li
We have revealed that a novel stress-inducible protein, Sestrin2, declines in the heart with aging. Moreover, there is an interaction between Sestrin2 and energy sensor AMPK in the heart in response to ischemic stress. The objective of this study is to determine whether Sestrin2-AMPK complex modulates PGC-1α in the heart and protects the heart from ischemic insults. In order to characterize the role of cardiac Sestrin2-AMPK signaling cascade in aging, C57BL/6 wild type young mice (3-4months), aged mice (24-26months) and young Sestrin2 KO mice were subjected to left anterior descending coronary artery occlusion for in vivo regional ischemia...
January 8, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29325803/coronary-artery-disease-in-athletes-an-adverse-effect-of-intense-exercise
#7
REVIEW
Hélder Dores, Pedro de Araújo Gonçalves, Nuno Cardim, Nuno Neuparth
Regular physical exercise is responsible for various health benefits, and is recommended for primary and secondary cardiovascular (CV) prevention. Despite these recognized benefits, various clinical events can occur in athletes, including acute myocardial infarction and sudden cardiac death (SCD); the main cause of SCD in veteran athletes is coronary artery disease (CAD). The relationship between intense exercise training and CAD is controversial, and a U-shaped association has been hypothesized. If this is the case, screening for subclinical CAD in older athletes may be justified, and various different methodologies have been proposed...
January 8, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29325796/lcz696-sacubitril-valsartan-an-angiotensin-receptor-neprilysin-inhibitor-attenuates-cardiac-hypertrophy-fibrosis-and-vasculopathy-in-a-rat-model-of-chronic-kidney-disease
#8
Yasunori Suematsu, Wanghui Jing, Ane Nunes, Moti L Kashyap, Mahyar Khazaeli, Nosratola D Vaziri, Hamid Moradi
BACKGROUND: Chronic kidney disease (CKD) is associated with cardiac hypertrophy, fibrosis and increased risk of cardiovascular mortality. LCZ696 (Sacubitril/valsartan) is a promising agent which has shown significant potential in treatment of heart failure. We hypothesized that LCZ696 is more effective than valsartan alone in treatment of cardiovascular abnormalities associated with experimental CKD. METHODS AND RESULTS: Male Sprague Dawley rats underwent 5/6 nephrectomy and were subsequently randomized to no treatment (CKD), 30 mg/kg valsartan (VAL), or 60 mg/kg LCZ696 (LCZ)...
January 8, 2018: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29325368/-the-effects-and-related-mechanism-of-salvianolate-on-rats-with-myocardial-ischemia-reperfusion-injury
#9
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/29324968/long-term-effects-of-an-intensive-lifestyle-intervention-on-electrocardiographic-criteria-for-left-ventricular-hypertrophy-the-look-ahead-trial
#10
Tina E Brinkley, Andrea Anderson, Elsayed Z Soliman, Alain G Bertoni, Frank Greenway, William C Knowler, Stephen P Glasser, Edward S Horton, Mark A Espeland
Background: Left ventricular hypertrophy assessed by electrocardiography (ECG-LVH) is a marker of subclinical cardiac damage and a strong predictor of cardiovascular disease (CVD) events. The prevalence of ECG-LVH is increased in obesity and type 2 diabetes; however, there are no data on the long-term effects of weight loss on ECG-LVH. The purpose of this study was to determine whether an intensive lifestyle intervention reduces ECG-LVH in overweight and obese adults with type 2 diabetes...
January 9, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29322611/impact-of-pre-procedural-hyponatremia-on-clinical-outcomes-after-transcatheter-aortic-valve-replacement-a-propensity-matched-analysis
#11
Ai Kagase, Masanori Yamamoto, Tetsuro Shimura, Atsuko Kodama, Seiji Kano, Yutaka Koyama, Norio Tada, Toru Naganuma, Motoharu Araki, Futoshi Yamanaka, Shinichi Shirai, Yusuke Watanabe, Kentaro Hayashida
BACKGROUND: Hyponatremia is associated with the increased risk of early and late mortality in patients with cardiac disease. This study aimed to assess the prognostic value of hyponatremia in patients who had undergone transcatheter aortic valve replacement (TAVR). METHODS: We investigated 1,215 consecutive patients (mean age: 84.4 ± 5.0 years) who underwent TAVR using data from the Optimized CathEter vAlvular iNtervention (OCEAN)-TAVR Japanese multicenter registry...
January 11, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29322434/protection-from-reperfusion-injury-with-intracoronary-n-acetylcysteine-in-patients-with-stemi-undergoing-primary-percutaneous-coronary-intervention-in-a-cardiac-tertiary-center
#12
Younes Nozari, Azadeh Eshraghi, Azita Hajhossein Talasaz, Mostafa Bahremand, Jamshid Salamzadeh, Mojtaba Salarifar, Hamidreza Pourhosseini, Arash Jalali, Seyedeh Hamideh Mortazavi
BACKGROUND: Evidence suggests that oxidative stress plays a principal role in myocardial damage following ischemia/reperfusion events. Recent studies have shown that the antioxidant properties of N-acetylcysteine (NAC) may have cardioprotective effects in high doses, but-to the best of our knowledge-few studies have assessed this. OBJECTIVES: Our objective was to investigate the impact of high-dose NAC on ischemia/reperfusion injury. METHODS: We conducted a randomized double-blind placebo-controlled trial in which 100 consecutive patients with ST-elevation myocardial infarction undergoing percutaneous coronary intervention (PCI) were randomly assigned to the case group (high-dose NAC 100 mg/kg bolus followed by intracoronary NAC 480 mg during PCI then intravenous NAC 10 mg/kg for 12 h) or the control group (5% dextrose)...
January 10, 2018: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
https://www.readbyqxmd.com/read/29321822/pursuing-meaningful-end-points-for-stem-cell-therapy-assessment-in-ischemic-cardiac-disease
#13
REVIEW
Maria Dorobantu, Nicoleta-Monica Popa-Fotea, Mihaela Popa, Iulia Rusu, Miruna Mihaela Micheu
Despite optimal interventional and medical therapy, ischemic heart disease is still an important cause of morbidity and mortality worldwide. Although not included in standard of care rehabilitation, stem cell therapy (SCT) could be a solution for prompting cardiac regeneration. Multiple studies have been published from the beginning of SCT until now, but overall no unanimous conclusion could be drawn in part due to the lack of appropriate end-points. In order to appreciate the impact of SCT, multiple markers from different categories should be considered: Structural, biological, functional, physiological, but also major adverse cardiac events or quality of life...
December 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/29321061/enoxaparin-attenuates-doxorubicin-induced-cardiotoxicity-in-rats-via-interfering-with-oxidative-stress-inflammation-and-apoptosis
#14
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
https://www.readbyqxmd.com/read/29320953/spaceflight-activates-protein-kinase-c-alpha-signaling-and-modifies-the-developmental-stage-of-human-neonatal-cardiovascular-progenitor-cells
#15
Jonathan Baio, Aida F Martinez, Leonard L Bailey, Nahidh Hasaniya, Michael Pecaut, Mary Kearns-Jonker
Spaceflight impacts cardiovascular function in astronauts; however, its impact on cardiac development and the stem cells that form the basis for cardiac repair is unknown. Accordingly, further research is needed to uncover the potential relevance of such changes to human health. Using simulated microgravity (SMG) generated via two-dimensional clinorotation and culture aboard the International Space Station (ISS), we assessed the effects of mechanical unloading on human neonatal cardiovascular progenitor cell (CPC) developmental properties and signaling...
January 10, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29320510/adipose-tissue-atgl-modifies-the-cardiac-lipidome-in-pressure-overload-induced-left-ventricular-failure
#16
Janek Salatzki, Anna Foryst-Ludwig, Kajetan Bentele, Annelie Blumrich, Elia Smeir, Zsofia Ban, Sarah Brix, Jana Grune, Niklas Beyhoff, Robert Klopfleisch, Sebastian Dunst, Michal A Surma, Christian Klose, Michael Rothe, Frank R Heinzel, Alexander Krannich, Erin E Kershaw, Dieter Beule, P Christian Schulze, Nikolaus Marx, Ulrich Kintscher
Adipose tissue lipolysis occurs during the development of heart failure as a consequence of chronic adrenergic stimulation. However, the impact of enhanced adipose triacylglycerol hydrolysis mediated by adipose triglyceride lipase (ATGL) on cardiac function is unclear. To investigate the role of adipose tissue lipolysis during heart failure, we generated mice with tissue-specific deletion of ATGL (atATGL-KO). atATGL-KO mice were subjected to transverse aortic constriction (TAC) to induce pressure-mediated cardiac failure...
January 10, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29320401/mediterranean-diet-and-other-dietary-patterns-in-primary-prevention-of-heart-failure-and-changes-in-cardiac-function-markers-a-systematic-review
#17
REVIEW
Karina Sanches Machado d'Almeida, Stefanny Ronchi Spillere, Priccila Zuchinali, Gabriela Corrêa Souza
BACKGROUND: Heart failure (HF) is a complex syndrome and is recognized as the ultimate pathway of cardiovascular disease (CVD). Studies using nutritional strategies based on dietary patterns have proved to be effective for the prevention and treatment of CVD. Although there are studies that support the protective effect of these diets, their effects on the prevention of HF are not clear yet. METHODS: We searched the Medline, Embase, and Cochrane databases for studies that examined dietary patterns, such as dietary approaches to stop hypertension (DASH diet), paleolithic, vegetarian, low-carb and low-fat diets and prevention of HF...
January 10, 2018: Nutrients
https://www.readbyqxmd.com/read/29318851/-effect-of-combined-intervention-of-electroacupuncture-and-astragaloside-iv-on-myocardial-hypertrophy-and-tgf-%C3%AE-1-smad-signaling-in-rats-with-myocardial-fibrosis
#18
Jia-Shen Li, Xiao-Yu Zhu, Mei-Li Lu, Jun-Hong Gao, Hong-Xin Wang, Xiao-Chun Yu
OBJECTIVE: To observe the effect of combined intervention of electroacupuncture (EA) and astragaloside IV(ASIV) on cardiac hypertrophy and transforming growth factor β 1 (TGF-β 1)/Smad signaling in isoproterenol (ISO) induced cardiac hypertrophy rats, so as to investigate its underlying mechanisms in improving myocardial fibrosis. METHODS: A total of 50 SD rats were randomly divided into 5 groups: normal control, model (ISO), Propranolol (PRO),ASIV and EA+ASIV groups (n=10 in each group)...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29318430/an-eight-year-prospective-controlled-study-about-the-safety-and-diagnostic-value-of-cardiac-and-non-cardiac-1-5-t-mri-in-patients-with-a-conventional-pacemaker-or-a-conventional-implantable-cardioverter-defibrillator
#19
Pierpaolo Lupo, Riccardo Cappato, Giovanni Di Leo, Francesco Secchi, Giacomo D E Papini, Sara Foresti, Hussam Ali, Guido M G De Ambroggi, Antonio Sorgente, Gianluca Epicoco, Paola M Cannaò, Francesco Sardanelli
OBJECTIVES: To investigate safety and diagnostic value of 1.5-T MRI in carriers of conventional pacemaker (cPM) or conventional implantable defibrillator (cICD). METHODS: We prospectively compared cPM/cICD-carriers undergoing MRI (study group, SG), excluding those device-dependent or implanted <6 weeks before enrolment or prior to 01/01/2000, with cPM/cICD-carriers undergoing chest x-ray, CT or follow-up (reference group, RG). RESULTS: 142 MRI (55 cardiac) were performed in 120 patients with cPM (n=71) or cICD (n=71)...
January 9, 2018: European Radiology
https://www.readbyqxmd.com/read/29317766/clinical-characteristics-of-stress-cardiomyopathy-in-patients-with-acute-poisoning
#20
Ung Jeon, Samel Park, SangHo Park, Eun-Young Lee, Hyo-Wook Gil
Patients who attempt intentional suicide suffer from physical or emotional stress. This situation might be an important factor that causes takotsubo cardiomyopathy. We retrospectively investigated the clinical features of Takotsubo cardiomyopathy in patients with acute poisoning. This study included patients who were admitted from January 2010 to December 2015 because of intentional poisoning by ingestion. Among these patients, we selectively collected data of patients who underwent an echocardiogram. We divided the patients into three groups according to the echocardiogram; the non-cardiomyopathy group, the global hypokinesia group, and the takotsubo cardiomyopathy group...
January 9, 2018: Scientific Reports
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