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troponin creatine kinase

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https://www.readbyqxmd.com/read/29138670/simvastatin-ameliorates-diabetic-cardiomyopathy-by-attenuating-oxidative-stress-and-inflammation-in-rats
#1
Nawal M Al-Rasheed, Nouf M Al-Rasheed, Iman H Hasan, Maha A Al-Amin, Hanaa N Al-Ajmi, Raeesa A Mohamad, Ayman M Mahmoud
Simvastatin is a lipid-lowering agent used to treat hypercholesterolemia and to reduce the risk of heart disease. This study scrutinized the beneficial effects of simvastatin on experimental diabetic cardiomyopathy (DCM), pointing to the role of hyperglycemia-induced oxidative stress and inflammation. Diabetes was induced by intraperitoneal injection of streptozotocin and both control and diabetic rats received simvastatin for 90 days. Diabetic rats showed significant cardiac hypertrophy, body weight loss, hyperglycemia, and hyperlipidemia...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29130958/propofol-through-upregulating-caveolin-3-attenuates-post-hypoxic-mitochondrial-damage-and-cell-death-in-h9c2-cardiomyocytes-during-hyperglycemia
#2
Fan Deng, Shuang Wang, Liangqing Zhang, Xiang Xie, Shuyun Cai, Haobo Li, Gui-Ling Xie, Hui-Lai Miao, Changmin Yang, Xin Liu, Zhengyuan Xia
BACKGROUND/AIMS: Hearts from diabetic subjects are susceptible to myocardial ischemia reperfusion (I/R) injury. Propofol has been shown to protect against myocardial I/R injury due to its antioxidant properties while the underlying mechanism remained incompletely understood. Thus, this study aimed to determine whether or not propofol could attenuate myocardial I/R injury by attenuating mitochondrial dysfunction/damage through upregulating Caveolin (Cav)-3 under hyperglycemia. METHODS: Cultured rat cardiomyocyte H9C2 cells were subjected to hypoxia/reoxygenation (H/R) in the absence or presence of propofol under high glucose (HG), and cell viability, lactate dehydrogenase (LDH) and mitochondrial viability as well as creatine kinase-MB (CK-MB), cardiac troponin I (cTnI) and intracellular adenosine triphosphate (ATP) content were measured with colorimetric Enzyme-Linked Immunosorbent Assays...
November 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29128714/multiplex-immunoassays-using-virus-tethered-gold-microspheres-by-dc-impedance-based-flow-cytometry
#3
Jihun Rho, Woohyuk Jang, Inseong Hwang, Dahye Lee, Chang Heon Lee, Taek Dong Chung
Bead-based multiplex immunoassays for common use require enhanced sensitivity and effective prevention of non-specific adsorption, as well as miniaturization of the detection device. In this work, we have implemented virus-tethered gold microspheres for multiplex immunoassay applications, employing a DC impedance-based flow cytometer as a detection element. The advantages of virus-tethered gold microspheres, including excellent prevention of non-specific adsorption, are extended to signal enhancement arising from the large quantity of antibody loading on each virion, and to flexible movement of filamentous virus...
November 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29121498/cardiac-involvement-in-myotonic-dystrophy-the-role-of-troponins-and-n-terminal-pro-b-type-natriuretic-peptide
#4
Rea Valaperta, Claudia De Siena, Rosanna Cardani, Fortunata Lombardia, Edina Cenko, Benedetta Rampoldi, Barbara Fossati, Elisa Brigonzi, Roberta Rigolini, Paola Gaia, Giovanni Meola, Elena Costa, Raffaele Bugiardini
BACKGROUND AND AIMS: Myotonic dystrophy type 1 (DM1) and type 2 (DM2) are dominant inherited muscular dystrophies with multiple systemic involvement, often producing cardiac injury. This study sought to determine the clinical significance of elevated high sensitivity cardiac troponin T and I (hs-cTnT and hs-cTnI), and N-terminal pro B-type natriuretic peptide (NT-pro-BNP) in this population. METHODS: Sixty DM patients (35 men and 25 women; mean age: 45.1 years, range: 12-73 years) underwent clinical cardiac investigations and measurements of serum hs-cTnT, hs-cTnI, creatine kinase (CK), and NT-proBNP...
October 21, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29110132/novel-mesenchymal-stem-cell-strategy-in-alleviating-toll-like-receptor-4-p53-and-nrf2-signaling-in-isoproterenol-induced-myocardial-infarction-in-rat-model
#5
Mai O Kadry, Rehab M Abdel-Megeed
Mesenchymal stem cells (MSCs) are multipotent stromal cells that merit the differentiation into various cell types. The present study was designed to test the hypothesis that the cardioprotective effect of MSCs transplantation and digoxin treatment is mediated via the regulation of messenger RNA gene expression of pro-inflammatory cytokines and apoptotic markers. Myocardial infarction was induced in Wistar rats via isoproterenol injection in a dose of (85 mg/kg, subcutaneously, twice at an interval of 24 h)...
November 6, 2017: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29108440/cardiopreventive-effects-of-camel-milk-against-carbon-tetrachloride-induced-oxidative-stress-biochemical-and-histological-alterations-in-mice
#6
Houda Hamed, Manel Gargouri, Khaled Bellassoued, Zied Ghannoudi, Abdelfattah Elfeki, Ahmed Gargouri
The present study was designed to examine the preventive effects of camel milk (CM) against the toxic effects of acute exposure to carbon tetrachloride (CCl4) on the heart tissue of mice. Administration of a single dose of CCl4 caused cardio toxicity as monitored by an increase in lipid peroxidation (thiobarbituric acid reactive substances), protein carbonyl level and antioxidant markers (superoxide dismutase, catalase, glutathione peroxidase, glutathione and vitamin C) in the heart tissue. Moreover, CCl4 caused a distinguished rise of plasma aspartate aminotransferase, lactate dehydrogenase, troponin I, and creatine kinase activities...
November 6, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29099024/serum-creatine-kinase-mb-isoenzyme-activity-among-subjects-with-uncomplicated-essential-hypertension-any-sex-differences
#7
Mathias Abiodun Emokpae, Goodluck O N A Nwagbara
Hypertension (high blood pressure) is a major health challenge and more women than men are affected by the condition. Complications as a result of this condition often lead to disabilities and premature death. The objective of this study was to evaluate creatine kinase-MB (CK-MB) activity in uncomplicated hypertension and to know whether sex differences exist in the activity of the enzyme. Serum creatine kinase-MB isoenzyme activity, troponin I, and lipid profile were evaluated in 140 male and 100 female Nigerians with hypertension...
April 27, 2017: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29096885/stress-induced-cardiomyopathy-in-cancer-patients
#8
Dana Elena Giza, Juan Lopez-Mattei, Pimprapa Vejpongsa, Ezequiel Munoz, Gloria Iliescu, Danai Kitkungvan, Saamir A Hassan, Peter Kim, Michael S Ewer, Cezar Iliescu
Takotsubo syndrome, also known as stress-induced cardiomyopathy (SC), is underrecognized in cancer patients. This study aims to investigate the incidence, natural history, and triggers of SC in cancer patients and its impact on cancer therapy and overall survival. A total of 30 subjects fulfilled the diagnostic criteria for SC at MD Anderson Cancer Center over a 6-year period. Clinical presentation, electrocardiogram, laboratory data, and transthoracic echocardiogram results registered during the acute phase and follow-up were collected...
September 19, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29095967/effects-of-defibrillation-shock-in-patients-implanted-with-a-subcutaneous-defibrillator-a-biomarker-study
#9
Antonio D'Onofrio, Vincenzo Russo, Valter Bianchi, Ciro Cavallaro, Silvia Leonardi, Stefano De Vivo, Filippo Vecchione, Anna Rago, Ernesto Ammendola, Vincenzo Tavoletta, Luigi Atripaldi, Paola Elvira Mocavero, Gerardo Nigro
Aims: Implantable cardioverter defibrillator (ICD) shocks are associated with a subsequent increased risk of death, and an elevation of cardiac enzymes has been measured after defibrillation testing (DFT). In an experimental swine study, subcutaneous ICD (S-ICD) shocks caused less myocardial damage than traditional ICD shocks. The aim of our study was to investigate the association between S-ICD shock and acute cardiac damage in humans, as evaluated by means of sensitive and highly specific circulating biomarkers...
October 31, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29083953/pci-strategies-in-patients-with-acute-myocardial-infarction-and-cardiogenic-shock
#10
Holger Thiele, Ibrahim Akin, Marcus Sandri, Georg Fuernau, Suzanne de Waha, Roza Meyer-Saraei, Peter Nordbeck, Tobias Geisler, Ulf Landmesser, Carsten Skurk, Andreas Fach, Harald Lapp, Jan J Piek, Marko Noc, Tomaž Goslar, Stephan B Felix, Lars S Maier, Janina Stepinska, Keith Oldroyd, Pranas Serpytis, Gilles Montalescot, Olivier Barthelemy, Kurt Huber, Stephan Windecker, Stefano Savonitto, Patrizia Torremante, Christiaan Vrints, Steffen Schneider, Steffen Desch, Uwe Zeymer
Background In patients who have acute myocardial infarction with cardiogenic shock, early revascularization of the culprit artery by means of percutaneous coronary intervention (PCI) improves outcomes. However, the majority of patients with cardiogenic shock have multivessel disease, and whether PCI should be performed immediately for stenoses in nonculprit arteries is controversial. Methods In this multicenter trial, we randomly assigned 706 patients who had multivessel disease, acute myocardial infarction, and cardiogenic shock to one of two initial revascularization strategies: either PCI of the culprit lesion only, with the option of staged revascularization of nonculprit lesions, or immediate multivessel PCI...
October 30, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29080450/beneficial-effects-of-fermented-camel-milk-by-lactococcus-lactis-subsp-cremoris-on-cardiotoxicity-induced-by-carbon-tetrachloride-in-mice
#11
Houda Hamed, Fatma Chaari, Zied Ghannoudi, Abdelfattah ElFeki, Semia Chaabouni Ellouz, Ahmed Gargouri
Carbon tetrachloride (CCl4) is a xenobiotic present in the environment, can cause harmful effects on human health. In the present study, we attempted to elucidate the cardiopreventive potential of the fermented camel milk by lactococcus lactis subsp cremoris (FCM-LLC) against the toxic effects of acute exposure to CCl4 on heart tissue of mice. Twenty-eight mice's were divided into four groups of seven each: group (C) served as control; group (FCM-LLC) received only 100mgL of FCM-LLC/kg body weight daily for 15days; group (CCl4) was administered by a single dose of CCl4 (10mL/kg in 0...
October 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29077159/inflammatory-factor-in-donor-liver-and-its-effect-on-recipient-myocardial-injury-after-liver-transplantation
#12
J-B Chen, G-Y Chen, S-D Wei, J-J Sun, G-B Liu, Z-T Xie, G-F Tang
OBJECTIVE: To study the inflammatory factors in donor livers and its effect on recipient myocardial injury after liver transplantation recipients. PATIENTS AND METHODS: Eighteen patients who underwent orthotopic liver transplantations between January 2014 and December 2015 in our hospital were selected. A portion of the hepatic venous blood of donor's livers was preserved in heparinized tubes after partial resection. The concentrations of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), cardiac troponin I (cTnI), creatine kinase isoenzyme (CK-MB), and the activity of lactate dehydrogenase (LDH) in serum were measured...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29076052/assessment-of-acute-myocarditis-by-cardiac-magnetic-resonance-imaging-comparison-of-qualitative-and-quantitative-analysis-methods
#13
Massimo Imbriaco, Carmela Nappi, Marta Puglia, Marco De Giorgi, Serena Dell'Aversana, Renato Cuocolo, Andrea Ponsiglione, Igino De Giorgi, Maria Vincenza Polito, Michele Klain, Federico Piscione, Leonardo Pace, Alberto Cuocolo
BACKGROUND: To compare cardiac magnetic resonance (CMR) qualitative and quantitative analysis methods for the noninvasive assessment of myocardial inflammation in patients with suspected acute myocarditis (AM). METHODS: A total of 61 patients with suspected AM underwent coronary angiography and CMR. Qualitative analysis was performed applying Lake-Louise Criteria (LLC), followed by quantitative analysis based on the evaluation of edema ratio (ER) and global relative enhancement (RE)...
October 26, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29071892/-grain-moxibustion-may-protect-myocardium-by-reducing-oxidative-stress-in-doxorubicin-induced-cardiomyopathy-rats
#14
Yan Xiao, Liang Ding, Hao Chen, Yi-Huang Gu
OBJECTIVE: To observe the effectiveness of grain-moxibustion in resisting oxidative stress in doxorubicin (DOX)-induced cardiomyopathy rats. METHODS: Sixty Sprague-Dawley (SD) rats were randomly divided into blank control group (blank group), cardiomyopathy model (model) group and grain-moxibustion (moxibustion) group, with 20 rats in each one. The cardiomyopathy model was established by intraperitoneal injection of DOX (0.5 mg/100 g), once a week for 4 weeks. Grain-moxibustion was applied to "Guanyuan" (CV 4) and "Juque" (CV 14) for 5 cones, once daily for 4 weeks except the Sundays...
December 25, 2016: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29064277/high-sensitivity-cardiac-troponins-can-they-help-in-diagnosing-myocardial-ischaemia
#15
Enrico Orsini, Paolo Caravelli, Frank Lloyd Dini, Mario Marzilli
BACKGROUND: Cardiac troponin is the most sensitive marker of myocardial injury, but controversy still exists about its role in detecting ischaemia. METHODS: To investigate the role of troponin as a marker of stress-induced ischaemia, circulating high sensitivity cardiac troponin T (hs-cTnT) was measured and compared with the MB fraction of creatine kinase (CK-MB) in 125 patients undergoing a stress test (53 electrocardiogram/echo exercise, 42 echo dipyridamole and 30 echo dobutamine tests)...
March 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29061339/hic2-regulates-isoform-switching-during-maturation-of-the-cardiovascular-system
#16
Iain M Dykes, Kelly Lammerts van Bueren, Peter J Scambler
Physiological changes during embryonic development are associated with changes in the isoform expression of both myocyte sarcomeric proteins and of erythrocyte haemoglobins. Cell type-specific isoform expression of these genes also occurs. Although these changes appear to be coordinated, it is unclear how changes in these disparate cell types may be linked. The transcription factor Hic2 is required for normal cardiac development and the mutant is embryonic lethal. Hic2 embryos exhibit precocious expression of the definitive-lineage haemoglobin Hbb-bt in circulating primitive erythrocytes and of foetal isoforms of cardiomyocyte genes (creatine kinase, Ckm, and eukaryotic elongation factor Eef1a2) as well as ectopic cardiac expression of fast-twitch skeletal muscle troponin isoforms...
October 20, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29047154/effects-of-testosterone-enanthate-and-resistance-training-on-myocardium-in-wistar-rats-clinical-and-anatomical-pathology
#17
S Karbasi, M Zaeemi, M Mohri, A Rashidlamir, Z Moosavi
This study was performed to determine the effects of 8 weeks testosterone enanthate (TE) injection and resistance training (RT) on cardiac muscle in male Wistar rats. A total of 28 male adult Wistar rats were randomly divided into 4 groups; control + placebo, RT + placebo, TE and TE + RT. Testosterone enanthate (20 mg/kg BW, IM) and placebo (olive oil; 0.2 ml, IM) were injected twice a week for 2 months. The RT consisted of climbing (5 reps/3 sets) a ladder carrying a load suspended from the tail...
October 18, 2017: Andrologia
https://www.readbyqxmd.com/read/29042932/cardioprotective-effect-of-notch-signaling-on-the-development-of-myocardial-infarction-complicated-by-diabetes-mellitus
#18
Fang Wu, Bo Yu, Xu Zhang, Yuelan Zhang
The present study aimed to elucidate the role of Notch signaling in the development of myocardial infarction (MI) concomitant with diabetes in vivo and in vitro and evaluated the therapeutic effect of the Notch signaling in vitro. Streptozotocin-induced diabetic rats were subjected to 25 min of ischemia and 2 h of reperfusion. Cardiac troponin T (cTnT) and creatine kinase-MB (CK-MB) isoenzyme levels were detected. Infarct size was measured by 2,3,5-triphenyltetrazolium chloride staining. Myocardial apoptosis and fibrosis were examined by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling and Masson Trichrome staining, respectively...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29040663/heart-type-fatty-acid-binding-protein-h-fabp-and-highly-sensitive-troponin-t-hstnt-as-markers-of-myocardial-injury-and-cardiovascular-events-in-elective-percutaneous-coronary-intervention-pci
#19
M Connolly, J Shand, M Kinnin, I Menown, M J Kurth, J Lamont, D Mc Eneaney
OBJECTIVES: To assess the prognostic value of biomarkers of myocardial injury following elective percutaneous coronary intervention (PCI). BACKGROUND: Type 4a myocardial infarction (MI) occurs when myocardial injury is combined with either symptoms suggestive of myocardial ischaemia, new left bundle branch block, angiographic loss of patency of a major artery or imaging suggestive of new loss of myocardium. Myocardial injury is defined as a rise of > 5 x 99th upper reference limit (URL) of 14ng/L (i...
October 10, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29036976/-comparison-of-perioperative-serum-thrombomodulin-levels-in-patients-underwent-off-pump-coronary-artery-bypass-grafting-with-and-without-cardiogenic-shock
#20
L Zhang, C Wang, T X Gu, C M Lu, Z W Wang
Objective: To observe the perioperative changes of serum thrombomodulin in patients with and without cardiogenic shock undergoing off-pump coronary artery bypass grafting surgery. Methods: A total of 66 patients with coronary artery disease who underwent off-pump coronary artery bypass grafting surgery between June and December 2015 in our hospital were included in this study.The patients were divided into non-cardiogenic shock group (n=51) and shock group (n=15) according to the absence or presence of cardiogenic shock...
September 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
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