keyword
MENU ▼
Read by QxMD icon Read
search

troponins

keyword
https://www.readbyqxmd.com/read/28225864/protective-effects-of-fentanyl-preconditioning-on-cardiomyocyte-apoptosis-induced-by-ischemia-reperfusion-in-rats
#1
Q Xu, Q-G Li, G-R Fan, Q-H Liu, F-L Mi, B Liu
We aimed to study the effect of fentanyl (Fen) preconditioning on cardiomyocyte apoptosis induced by ischemia-reperfusion (I/R) in rats. A total of 120 Sprague Dawley male rats (age: 3 months) were randomly divided into: sham operation group (S group), I/R group, normal saline I/R group (NS group), and fentanyl low, middle, and high dose groups (Fen1: 2 μg/kg; Fen2: 4 μg/kg; Fen3: 6 μg/kg). Heart rate (HR), mean arterial pressure (MAP), left ventricular developed pressure (LVDP), ±dp/dtmax, malondialdehyde (MDA), superoxide dismutase (SOD) activity, creatine phosphokinase-MB (CK-MB), and cardiac troponin-I (cTnI) were measured...
February 16, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28225378/traumatic-ventricular-septal-defect-in-a-1-year-old-boy-after-accidental-chest-compression-by-an-adult
#2
Huang-Wei Wu, Jen-Hung Chien, Ken-Pen Weng, Chu-Chuan Lin, Bo-Hau Chen, Shih-Ming Huang, Yu-Chi Hung
We report a 1-year-old boy with a delayed diagnosis of traumatic ventricular septal defect (VSD) related to chest compression. His cardiac function was stable after adequate medical treatment. Spontaneous closure of traumatic VSD occurred to this patient at the age of 4 years. This is a rare case of traumatic VSD associated with accidental chest compression, which is similar to rupture of the ventricular septum after blunt chest trauma. It should be kept in mind that traumatic VSD and concomitant thoracic injuries can develop during chest compression...
February 21, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28223172/a-simple-model-of-cardiac-muscle-for-multiscale-simulation-passive-mechanics-crossbridge-kinetics-and-calcium-regulation
#3
Fyodor A Syomin, Andrey K Tsaturyan
A simple model of cardiac muscle was designed for multiscale simulation of heart mechanics. Relaxed cardiac muscle was described as a transversally isotropic hyperelastic material. Active tension caused by actin-myosin crossbridges depends on the ensemble averaged strain of myosin heads bound to actin. Calcium activation was modeled by Ca(2+) binding to troponin-C. To account for the dependence of troponin affinity for Ca(2+) on myosin heads strongly bound to actin, the kinetics of troponin binding to Ca(2+) in the overlap zone of the thin and thick filaments and outside it were separated...
February 18, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28222921/relationships-between-left-ventricular-structure-and-function-according-to-cardiac-mri-and-cardiac-biomarkers-in-end-stage-renal-disease
#4
Bryan A Ross, Ron Wald, Marc B Goldstein, Darren A Yuen, Jonathon Leipsic, Mercedeh Kiaii, Andrea Rathe, Djeven P Deva, Anish Kirpalani, Olugbenga O Bello, John J Graham, Howard Leong-Poi, Kim A Connelly, Andrew T Yan
BACKGROUND: We sought to assess the relationships between left ventricular (LV) remodelling and the mechanical and uremic stressors in hemodialysis patients. METHODS: In this prospective 2-centre cohort study, 67 prevalent hemodialysis patients were followed for 1 year. Data on routine bloodwork and predialysis blood pressure (BP) measurements were collected over a 12-week period. LV end-diastolic volume (LVEDV) and LV mass (LVM) were measured using cardiac magnetic resonance imaging and indexed...
December 3, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28222017/evaluation-of-biotin-interference-on-immunoassays-new-data-for-troponin-i-digoxin-nt-pro-bnp-and-progesterone
#5
Théo Willeman, Olivier Casez, Patrice Faure, Anne Sophie Gauchez
No abstract text is available yet for this article.
February 21, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28221913/an-immunoassay-for-quantification-of-contamination-by-raw-meat-juice-on-food-contact-surfaces
#6
Fur-Chi Chen, Sandria Godwin, Edgar Chambers
Raw chicken products often are contaminated with Salmonella and Campylobacter , which can be transmitted from packages to contact surfaces. Raw meat juices from these packages also provide potential media for cross-contamination. There are limited quantitative data on the levels of consumer exposure to raw meat juice during shopping for and handling of chicken products. An exposure assessment is needed to quantify the levels of transmission and to assess the risk. An enzyme-linked immunosorbent assay (ELISA) was developed and validated for quantitative detection of raw meat juice on hands and various food contact surfaces...
November 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221206/significance-of-new-q-waves-and-their-location-in-postoperative-ecgs-after-elective-on-pump-cardiac-surgery-an-observational-cohort-study
#7
Eckhard Mauermann, Daniel Bolliger, Jens Fassl, Martin Grapow, Esther E Seeberger, Manfred D Seeberger, Miodrag Filipovic, Giovanna A L L Buse
BACKGROUND: The clinical significance of new pathological Q waves after on-pump cardiac surgery is uncertain. OBJECTIVES: To determine whether or not either the occurrence per se or the location of new pathological Q waves after on-pump cardiac surgery is associated with 12-month, all-cause mortality and/or major adverse cardiac events (MACEs). DESIGN: Observational cohort study. SETTING: Single university hospital from January 2007 to October 2010...
February 17, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28221010/high-sensitivity-cardiac-troponin-t-predicts-mortality-after-hospitalization-for-community-acquired-pneumonia
#8
Stefan M T Vestjens, Simone M C Spoorenberg, Ger T Rijkers, Jan C Grutters, Jurriën M Ten Berg, Peter G Noordzij, Ewoudt M W Van de Garde, Willem Jan W Bos
BACKGROUND AND OBJECTIVE: Mortality after hospitalization with community-acquired pneumonia (CAP) is high, compared with age-matched controls. Available evidence suggests a strong link with cardiovascular disease. Our aim was to explore the prognostic value of high-sensitivity cardiac troponin T (cTnT) for mortality in patients hospitalized with CAP. METHODS: CTnT level on admission was measured (assay conducted in 2015) in 295 patients hospitalized with CAP who participated in a randomized placebo-controlled double-blind trial on adjunctive dexamethasone treatment...
February 21, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28218398/changes-in-left-ventricular-function-after-spontaneous-coronary-artery-dissection
#9
Christopher Franco, Andrew Starovoytov, Milad Heydari, G B John Mancini, Eve Aymong, Jacqueline Saw
BACKGROUND: Spontaneous healing of spontaneous coronary artery dissection (SCAD) and left ventricular ejection fraction (LVEF) recovery is frequently observed clinically. However, LVEF on presentation and follow-up imaging has not been described. HYPOTHESIS: We hypothesize that LV dysfunction improves at follow-up after initial SCAD presentation. METHODS: We included patients with nonatherosclerotic SCAD prospectively followed at Vancouver General Hospital, who had baseline assessment of LVEF and wall-motion abnormality (WMA) during their index presentation...
February 20, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28216824/cardiac-troponin-i-a-potent-biomarker-for-myocardial-damage-assessment-following-high-voltage-electric-burn
#10
Arindam Bose, Chandra B Chhabra, Shobha Chamania, Nanda Hemvani, Dhananjay S Chitnis
Myocardial infarction (MI) following high voltage electric burn is very rare, and its pathogenesis remains controversial. Electrical burns represent only 4% of all burns. Hence, clinical managements have taken a slow pace in developing. The recent guidelines laid down by the cardiology societies include cardiac troponin I (cTnI) as the gold standard marker for the assessment of myocardial damage assessment. Two patients were admitted to our hospital at the different time with the same kind of high voltage electric burn...
September 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28215234/moderate-to-severe-obstructive-sleep-apnea-is-associated-with-subclinical-myocardial-injury-and-impaired-hemodynamics-in-pulmonary-hypertension-patients
#11
Takashi Kohno, Masaharu Kataoka, Takashi Kawakami, Ryoma Fukuoka, Yuichi Tamura, Mai Kimura, Makoto Takei, Yuichiro Maekawa, Motoaki Sano, Keiichi Fukuda
BACKGROUND: The clinical significance of obstructive sleep apnea (OSA) in pulmonary hypertension (PH) patients remains unclear. We investigated the hemodynamics and serum troponin T concentrations associated with OSA in PH patients. METHODS: Cross-sectional study was performed on data from 97 clinically stable PH patients. Using overnight sleep study, we evaluated apnea-hypopnea index (AHI) and divided patients into two groups: none-to-mild OSA (AHI < 15/h, N = 81) and moderate-to-severe OSA (AHI ≥ 15/h, N = 16)...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28214967/increased-atrial-%C3%AE-adrenergic-receptors-and-grk-2-gene-expression-can-play-a-fundamental-role-in-heart-failure-after-repair-of-congenital-heart-disease-with-cardiopulmonary-bypass
#12
Marcela Silva Oliveira, Fabio Carmona, Walter V A Vicente, Paulo H Manso, Karina M Mata, Mara Rúbia Celes, Erica C Campos, Simone G Ramos
Surgeries to correct congenital heart diseases are increasing in Brazil and worldwide. However, even with the advances in surgical techniques and perfusion, some cases, especially the more complex ones, can develop heart failure and death. A retrospective study of patients who underwent surgery for correction of congenital heart diseases with cardiopulmonary bypass (CPB) in a university tertiary-care hospital that died, showed infarction in different stages of evolution and scattered microcalcifications in the myocardium, even without coronary obstruction...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28214504/frequency-of-troponin-testing-in-inpatient-versus-outpatient-settings
#13
Adam J Farber, Keith Suarez, Kipp Slicker, Chhaya D Patel, Brandon Pope, Robert Kowal, Jeffrey B Michel
Troponin elevation is required to diagnose acute myocardial infarction (AMI), yet elevated values are often encountered in noncardiac disease states. We evaluated inpatient (IP) and outpatient (OP) encounters at 14 hospitals in calendar year 2014 and found that troponin assays were performed during 12% of all OP visits and 29% of all IP visits: 82,853 encounters in all. We employed an expert panel to estimate the likelihood of AMI based on primary International Statistical Classification of Diseases and Related Health Problems, 9th edition diagnoses...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28214153/arrhythmogenic-right-ventricular-dysplasia-atypical-clinical-presentation
#14
José Marçalo, Luiz Menezes Falcão
A 67-year-old man was admitted to our hospital after episodes of syncope preceded by malaise and diffuse neck and chest discomfort. No family history of cardiac disease was reported. Laboratory workup was within normal limits, including D-dimers, serum troponin I and arterial blood gases. The electrocardiogram showed sinus rhythm with T-wave inversion in leads V1 to V3. Computed tomography angiography to investigate pulmonary embolism showed no abnormal findings. Transthoracic echocardiography (TTE) displayed massive enlargement of the right ventricle with intact interatrial septum and no pulmonary hypertension...
February 14, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28214082/effect-of-remote-ischemia-or-nicorandil-on-myocardial-injury-following-percutaneous-coronary-intervention-in-patients-with-stable-coronary-artery-disease-a-randomized-controlled-trial
#15
Toru Miyoshi, Kentaro Ejiri, Kunihisa Kohno, Makoto Nakahama, Masayuki Doi, Mitsuru Munemasa, Masaaki Murakami, Atsushi Takaishi, Yusuke Kawai, Tetsuya Sato, Katsumasa Sato, Takefumi Oka, Natsuki Takahashi, Satoru Sakuragi, Atsushi Mima, Kenki Enko, Shingo Hosogi, Seiji Nanba, Ryoichi Hirami, Kazufumi Nakamura, Hiroshi Ito
BACKGROUND: The effect of remote ischemic preconditioning (RIPC) and nicorandil on periprocedural myocardial injury (pMI) in patients with planned percutaneous coronary intervention (PCI) remains controversial. The aim of this randomized trial was to evaluate the effect of RIPC or nicorandil on pMI following PCI in patients with stable coronary artery disease (CAD) compared with a control group. METHODS: Patients with stable CAD who planned to undergo PCI were assigned to a 1:1:1 ratio to control, RIPC, or intravenous nicorandil (6mg/h)...
February 10, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28214081/fev1-and-fvc-predict-all-cause-mortality-independent-of-cardiac-function-results-from-the-population-based-gutenberg-health-study
#16
Christina Magnussen, Francisco M Ojeda, Nargiz Rzayeva, Tanja Zeller, Christoph R Sinning, Norbert Pfeiffer, Manfred Beutel, Maria Blettner, Karl J Lackner, Stefan Blankenberg, Thomas Münzel, Klaus F Rabe, Philipp S Wild, Renate B Schnabel
BACKGROUND: Lung function has previously been related to increased mortality. Whether pulmonary impairment is associated with an increased mortality independent of cardiac dysfunction remains unclear. METHODS: In 15010 individuals from the general population (age range 35-74years, 51% men) in the Gutenberg Health Study we performed spirometry and transthoracic echocardiography. N-terminal pro-B-type natriuretic peptide (Nt-proBNP) and high-sensitive troponin I (hsTnI) were measured in all individuals...
February 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28214001/comparison-of-pulmonary-venous-and-left-atrial-remodeling-in-patients-with-atrial-fibrillation-with-hypertrophic-cardiomyopathy-versus-with-hypertensive-heart-disease
#17
Kentaro Yoshida, Hideyuki Hasebe, Yasuaki Tsumagari, Hidekazu Tsuneoka, Mari Ebine, Yoshiko Uehara, Yoshihiro Seo, Kazutaka Aonuma, Noriyuki Takeyasu
Left ventricular diastolic dysfunction in hypertrophic cardiomyopathy (HC) increases susceptibility to atrial fibrillation. Although phenotypical characteristics of the hypertrophied left ventricle are clear, left atrial (LA) and pulmonary venous (PV) remodeling has rarely been investigated. This study aimed to identify differences in LA and PV remodeling between HC and hypertensive heart disease (HHD) using 3-dimensional computed tomography. Included were 33 consecutive patients with HC, 25 with HHD, and 29 without any co-morbidities who were referred for catheter ablation of atrial fibrillation...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28213932/correlations-between-electrocardiogram-and-biomarkers-in-acute-pulmonary-embolism-analysis-of-zatpol-2-registry
#18
Piotr Kukla, Dariusz A Kosior, Andrzej Tomaszewski, Katarzyna Ptaszyńska-Kopczyńska, Katarzyna Widejko, Robert Długopolski, Andrzej Skrzyński, Piotr Błaszczak, Kamil Fijorek, Marcin Kurzyna
BACKGROUND: Electrocardiography (ECG) is still one of the first tests performed at admission, mostly in patients (pts) with chest pain or dyspnea. The aim of this study was to assess the correlation between electrocardiographic abnormalities and cardiac biomarkers as well as echocardiographic parameter in patients with acute pulmonary embolism. METHODS: We performed a retrospective analysis of 614 pts. (F/M 334/280; mean age of 67.9 ± 16.6 years) with confirmed acute pulmonary embolism (APE) who were enrolled to the ZATPOL-2 Registry between 2012 and 2014...
February 18, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28213770/myosin-heavy-chain-and-cardiac-troponin-t-damage-is-associated-with-impaired-myofibrillar-atpase-activity-contributing-to-sarcomeric-dysfunction-in-ca-2-paradox-rat-hearts
#19
Árpád Kovács, Judit Kalász, Enikő T Pásztor, Attila Tóth, Zoltán Papp, Naranjan S Dhalla, Judit Barta
This study aimed to explore the potential contribution of myofibrils to contractile dysfunction in Ca(2+)-paradox hearts. Isolated rat hearts were perfused with Krebs-Henseleit solution (Control), followed by Ca(2+)-depletion, and then Ca(2+)-repletion after Ca(2+)-depletion (Ca(2+)-paradox) by Langendorff method. During heart perfusion left ventricular developed pressure (LVDP), end-diastolic pressure (LVEDP), rate of pressure development (+ dP/dt), and pressure decay (-dP/dt) were registered. Control LVDP (127...
February 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28213568/estimated-glomerular-filtration-rate-and-albuminuria-are-associated-with-biomarkers-of-cardiac-injury-in-a-population-based-cohort-study-the-maastricht-study
#20
Remy J H Martens, Dorien M Kimenai, Jeroen P Kooman, Coen D A Stehouwer, Frans E S Tan, Otto Bekers, Pieter C Dagnelie, Carla J H van der Kallen, Abraham A Kroon, Karel M L Leunissen, Frank M van der Sande, Nicolaas C Schaper, Simone J S Sep, Miranda T Schram, Jeroen D van Suijlen, Marja P van Dieijen-Visser, Steven J R Meex, Ronald M A Henry
BACKGROUND: Chronic kidney disease (CKD) is associated with an increased cardiovascular disease mortality risk. It is, however, less clear at what point in the course from normal kidney function to CKD the association with cardiovascular disease appears. Studying the associations of estimated glomerular filtration rate (eGFR) and albuminuria with biomarkers of (subclinical) cardiac injury in a population without substantial CKD may clarify this issue. METHODS: We examined the cross-sectional associations of eGFR and urinary albumin excretion (UAE) with high-sensitivity cardiac troponin (hs-cTn) T, hs-cTnI, and N-terminal probrain natriuretic-peptide (NT-proBNP) in 3103 individuals from a population-based diabetes-enriched cohort study...
February 17, 2017: Clinical Chemistry
keyword
keyword
41267
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"