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Cardiac markers

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https://www.readbyqxmd.com/read/28920705/human-endothelial-progenitor-cell-derived-exosomes-increase-proliferation-and-angiogenesis-in-cardiac-fibroblasts-by-promoting-the-mesenchymal-endothelial-transition-and-reducing-high-mobility-group-box-1-protein-b1-expression
#1
Xiao Ke, Dahao Yang, Jiawen Liang, Xing Wang, Shaoyun Wu, Xiaoqing Wang, Chengheng Hu
Myocardial fibrosis is a characteristic feature of cardiomyopathies. However, no effective strategies to attenuate cardiac fibrosis are currently available. Late-stage endothelial progenitor cells (EPCs) are precursors of endothelial cells (ECs) that repair the heart through a paracrine mechanism. In the present study, we tested whether EPC-derived exosomes regulate the differentiation of fibroblasts into ECs. We isolated late-stage EPCs from human peripheral blood (PB) and used immunofluorescence and flow cytometry to confirm their identity...
September 18, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28918895/a-method-for-determining-exercise-oscillatory-ventilation-in-heart-failure-prognostic-value-and-practical-implications
#2
Baruch Vainshelboim, Aisha Amin, Jeffrey W Christle, Shreyas Hebbal, Euan A Ashley, Jonathan Myers
BACKGROUND: Exercise oscillatory ventilation (EOV) has been shown to be a powerful prognostic marker in chronic heart failure (CHF). However, EOV is poorly defined, its measurement lacks standardization and it is underutilized in clinical practice. The purpose of this pilot study was to investigate the prognostic value of a modified definition of EOV in patients with CHF. METHODS: Eighty-nine CHF patients (56.5±8.4years) (64% NYHA class III-IV) underwent cardiopulmonary exercise testing...
September 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28917314/evaluation-of-cardiopulmonary-and-inflammatory-markers-in-dogs-with-heartworm-infection-treated-using-the-slow-kill-method
#3
W-K Yoon, Y-W Kim, S-I Suh, C Hyun
This study evaluated the changes in the levels of cardiac, hemostatic, and inflammatory biomarkers in 12 dogs with different severities of heartworm infection treated using the slow kill protocol, consisting of 6-10μg/kg of ivermectin and 10mg/kg of doxycycline combination. The serum levels of cardiac troponin-I, D-dimer, C-reactive protein, and interleukin-6 were measured on the day of diagnosis (D0), after termination of doxycycline administration (D30), after termination of the slow kill treatment (D180), and 10 months after the initiation of therapy (D300)...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28916673/radiographic-and-clinical-brain-infarcts-in-cardiac-and-diagnostic-procedures-a-systematic-review-and-meta-analysis
#4
Sung-Min Cho, Abhishek Deshpande, Vinay Pasupuleti, Adrian V Hernandez, Ken Uchino
BACKGROUND AND PURPOSE: The incidence of periprocedural brain infarcts varies among cardiovascular procedures. In a systematic review, we compared the ratio of radiographic brain infarcts (RBI) to strokes and transient ischemic attacks across cardiac and vascular procedures. METHODS: We searched MEDLINE and 5 other databases for brain infarcts in aortic valve replacement, coronary artery bypass grafting, cardiac catheterization, and cerebral angiogram through September 2015...
September 15, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28916601/gait-speed-can-predict-advanced-clinical-outcomes-in-patients-who-undergo-transcatheter-aortic-valve-replacement-insights-from-a-japanese-multicenter-registry
#5
Seiji Kano, Masanori Yamamoto, Tetsuro Shimura, Ai Kagase, Masanao Tsuzuki, Atsuko Kodama, Yutaka Koyama, Toshihiro Kobayashi, Kenichi Shibata, Norio Tada, Toru Naganuma, Motoharu Araki, Futoshi Yamanaka, Shinichi Shirai, Kazuki Mizutani, Minoru Tabata, Hiroshi Ueno, Kensuke Takagi, Akihiro Higashimori, Toshiaki Otsuka, Yusuke Watanabe, Kentaro Hayashida
BACKGROUND: Gait speed reflects an important factor of frailty and is associated with an increased risk of late mortality in patients with cardiac disease. This study sought to assess the prognostic value of gait speed in elderly patients who underwent transcatheter aortic valve replacement. METHODS AND RESULTS: We investigated the 5-m or 15-feet gait speed (m/sec) in 1256 patients who underwent transcatheter aortic valve implantation using data from the OCEAN-TAVI Japanese multicenter registry (Optimized Catheter Valvular Intervention-Transcatheter Aortic Valve Implantation)...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28916477/nse-serum-levels-in-extracorporeal-life-support-patients-relevance-for-neurological-outcome
#6
Bernhard Floerchinger, Alois Philipp, Daniele Camboni, Maik Foltan, Dirk Lunz, Matthias Lubnow, York Zausig, Christof Schmid
BACKGROUND: Good neurological outcome is a major determinant after cardiac resuscitation. Extracorporeal life support may rapidly stabilize the patient, but cerebral ischemia remains a frequent complication relevant for further therapy. The aim of this study was to prove the value of NSE to indicate cerebral injury in patients with extracorporeal support after CPR. METHODS: 159 patients with CPR were included. NSE 48h peak levels and trends were tested for usability as predictive marker of brain injury, in-hospital mortality and long-term outcome...
September 12, 2017: Resuscitation
https://www.readbyqxmd.com/read/28916335/troxerutin-abrogates-mitochondrial-oxidative-stress-and-myocardial-apoptosis-in-mice-fed-calorie-rich-diet
#7
Rajagopalan Geetha, Chandrasekaran Sathiya Priya, Carani Venkatraman Anuradha
Mitochondrial oxidative stress plays a major role in the pathogenesis of myocardial apoptosis in metabolic syndrome (MS) patients. In this study, we investigated the effect of troxerutin (TX), an antioxidant on mitochondrial oxidative stress and apoptotic markers in heart of mice fed fat and fructose-rich diet. Adult male Mus musculus mice were fed either control diet or high fat, high fructose diet (HFFD) for 60 days to induce MS. Mice from each dietary group were divided into two on the 16th day and were either treated or untreated with TX (150 mg/kg bw, p...
September 12, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28915957/modulation-of-heart-rate-and-heart-rate-variability-by-n-3-long-chain-polyunsaturated-fatty-acids-speculation-on-mechanism-s
#8
Merritt L Drewery, Steven B Spedale, Carol J Lammi-Keefe
Heart rate (HR) and heart rate variability (HRV) are valuable markers of health. Although the underlying mechanism(s) are controversial, it is well documented that n-3 long chain polyunsaturated fatty acid (LCPUFA) intake improves HR and HRV in various populations. Autonomic modulation and/or alterations in cardiac electrophysiology are commonly cited as potential mechanisms responsible for these effects. This article reviews existing evidence for each and explores a separate mechanism which has not received much attention but has scientific merit...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28911997/heart-type-fatty-acid-binding-protein-in-cardiovascular-disease-a-systemic-review
#9
REVIEW
Yoichiro Otaki, Tetsu Watanabe, Isao Kubota
Fatty acid-binding proteins, whose clinical applications have been studied, are a family of proteins that reflect tissue injury. Heart-type fatty acid-binding protein (H-FABP) is a marker of ongoing myocardial damage and useful for early diagnosis of acute myocardial infarction (AMI). In the past decade, compared to other cardiac enzymes, H-FABP has shown more promise as an early detection marker for AMI. However, the role of H-FABP is being re-examined due to recent refinement in the search for newer biomarkers, and greater understanding of the role of high-sensitivity troponin...
September 11, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28911508/relationship-of-pcsk9-and-urinary%C3%A2-thromboxane-excretion-to%C3%A2-cardiovascular-events-in-patients%C3%A2-with%C3%A2-atrial-fibrillation
#10
Daniele Pastori, Cristina Nocella, Alessio Farcomeni, Simona Bartimoccia, Maria Santulli, Fortunata Vasaturo, Roberto Carnevale, Danilo Menichelli, Francesco Violi, Pasquale Pignatelli
BACKGROUND: Soluble proprotein convertase subtilisin/kexin type 9 (PCSK9) has been shown to be predictive of cardiovascular events (CVEs) in patients who are at high cardiovascular risk. No data on the effect of PCSK9 levels in patients with atrial fibrillation (AF) are available. OBJECTIVES: This study investigated the association between PCSK9 and CVEs in AF as well as the relationship between PCSK9 and urinary 11-dehydro-thromboxane B2 (11-dh-TxB2), a marker of platelet activation...
September 19, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28911177/deoxycorticosterone-salt-mediated-cardiac-inflammation-and-fibrosis-are-dependent-on-functional-clock-signaling-in-male-mice
#11
Elizabeth K Fletcher, James Morgan, David R Kennaway, Laura A Bienvenu, Amanda J Rickard, Lea M D Delbridge, Peter J Fuller, Colin D Clyne, Morag J Young
Activation of the mineralocorticoid receptor (MR) promotes inflammation, fibrosis, and hypertension. Clinical and experimental studies show that MR antagonists have significant therapeutic benefit for all-cause heart failure; however, blockade of renal MRs limits their widespread use. Identification of key downstream signaling mechanisms for the MR in the cardiovascular system may enable development of targeted MR antagonists with selectivity for pathological MR signaling and lower impact on physiological renal electrolyte handling...
September 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28906388/retrospective-cause-analysis-of-troponin-i-elevation-in-non-cad-patients-special-emphasis-on-sepsis
#12
Chien-Wen Yang, Huijun Li, Lisa Thomas, Manuel Ramos, Po-Hong Liu, Thomas Roe, Ravinder Valadri, Michael C Kiel, Vincent Yi-Fong Su, Qi Shi
BACKGROUND: Troponin I is one of the most commonly tested biochemical markers in the emergency room (ER) and in the hospital setting. Besides coronary artery disease (CAD), demand ischemia with underlying tachycardia, anemia, hypertensive emergency, congestive heart failure, kidney disease, sepsis, and pulmonary embolism have also been reported to cause troponin I elevations. Few reports have excluded patients with CAD, and no study has summarized the proportion of these factors relative to an increased troponin I level...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28903498/from-the-cover-lifelong-exposure-of-c57bl-6n-male-mice-to-bisphenol-a-or-bisphenol-s-reduces-recovery-from-a-myocardial-infarction
#13
Amanda Kasneci, Jun Seong Lee, Tae Jin Yun, Jijun Shang, Shaun Lampen, Tamar Gomolin, Cheolho C Cheong, Lorraine E Chalifour
Bisphenol A (BPA) leaches from plastics to contaminate foodstuffs. Analogs, such as bisphenol S (BPS), are now used increasingly in manufacturing. Greater BPA exposure has been correlated with exacerbation of cardiovascular disease, including myocardial infarction (MI). To test the hypothesis that bisphenol exposure impairs cardiac healing, we exposed C57bl/6n mice to water containing 25ng/ml BPA or BPS from conception and surgically induced an MI in adult male progeny. Increased early death and cardiac dilation, and reduced cardiac function were found post-MI in BPA- and BPS-exposed mice...
September 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28902662/circadian-hemodynamics-in-men-and-women-with-high-blood-pressure-dipper-vs-nondipper-and-racial-differences
#14
Andrew Sherwood, LaBarron K Hill, James A Blumenthal, Alan L Hinderliter
OBJECTIVE: The 'nondipping' pattern of circadian blood pressure (BP) variation is an established independent predictor of adverse cardiovascular outcomes. Although this phenomenon has been widely studied, its underlying circadian hemodynamics of cardiac output and systemic vascular resistance (SVR) have not been well characterized. We evaluated the hypothesis that BP nondipping would be associated with a blunted night-time reduction in SVR in a biracial sample of 140 (63 African-American and 77 white) men and women with elevated clinic BP (130-159/85-99 mmHg)...
September 11, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28902640/is-neutrophyl-to-lymphocyte-ratio-really-a-useful-marker-for-all-grades-of-degenerative-aortic-stenosis
#15
Selçuk Küçükseymen, Göksel Çağırcı, Ramazan Güven, Şakir Arslan
OBJECTIVE: Inflammatory processes play an important role in cardiac valve calcification and ossification. The aim of this study was to investigate the relationship between the neutrophil-lymphocyte ratio (NLR) and degenerative aortic stenosis (AS). METHODS: A total of 220 patients with AS and 158 healthy individuals who were a control group were included in the study. The NLR was calculated by dividing the number of neutrophils by number of lymphocytes in peripheral blood samples...
September 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28901628/total-cosine-r-to-t-for-predicting-ventricular-arrhythmic-and-mortality-outcomes-a-systematic-review-and-meta-analysis
#16
Gary Tse, Mengqi Gong, Cheuk Wai Wong, Cynthia Chan, Stamatis Georgopoulos, Yat Sun Chan, Bryan P Yan, Guangping Li, Paula Whittaker, Ana Ciobanu, Sadeq Ali-Hasan-Al-Saegh, Sunny H Wong, William K K Wu, George Bazoukis, Konstantinos Lampropoulos, Wing Tak Wong, Lap Ah Tse, Adrian M Baranchuk, Konstantinos P Letsas, Tong Liu
BACKGROUND: The total cosine R-to-T (TCRT), a vectorcardiographic marker reflecting the spatial difference between the depolarization and repolarization wavefronts, has been used to predict ventricular tachycardia/fibrillation (VT/VF) and sudden cardiac death (SCD) in different clinical settings. However, its prognostic value has been controversial. OBJECTIVE: This systematic review and meta-analysis evaluated the significance of TRCT in predicting arrhythmic and/or mortality endpoints...
September 12, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28900850/assessment-of-atrial-fibrillation-and-ventricular-arrhythmia-risk-after-bariatric-surgery-by-p-wave-qt-interval-dispersion
#17
Mustafa Yılmaz, Cihan Altın, Abdullah Tekin, Tansel Erol, İlker Arer, Tarık Zafer Nursal, Nurkan Törer, Varlık Erol, Haldun Müderrisoğlu
BACKGROUND: The association of obesity with atrial fibrillation (AF) and with ventricular arrhythmias is well documented. OBJECTIVE: The aim of this study was to investigate whether weight reduction by a laparoscopic sleeve gastrectomy has any effect on P wave dispersion (PWD), a predictor of AF, and corrected QT interval dispersion (CQTD), a marker of ventricular arrhythmias, in obese individuals. METHODS: In a prospective study, a total of 114 patients (79 females, 35 males) who underwent laparoscopic sleeve gastrectomy were examined...
September 13, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28899782/the-lncrna-gas5-mir-23a-foxo3a-axis-regulates-cardiac-hypertrophy-by-wnt-%C3%AE-catenin-signal-pathway
#18
Wei Wei, Yan Chen, Jing Gao, Chenyi Li
Cardiac hypertrophy (CH) is related to a variety of physiological as well as pathological stimuli and eventually increases the risk of heart failure. lncRNA GAS5 has been identified as a competing endogenous RNA in multiple human biological processes. Whether lncRNA GAS5 is involved in the progress of CH and how it works still remain unknown. Here, we found that the expression of lncRNA-GAS5 was increased in the AngII-induced Cardiac hypertrophy model. lncRNA-GAS5 inhibited the total protein per well, as well as the expression of hypertrophic markers, ANF and β-MHC...
September 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28899642/evaluation-of-myocardial-function-according-to-early-diastolic-intraventricular-pressure-difference-in-fetuses
#19
Yuka Yamamoto, Ken Takahashi, Yo Takemoto, Maki Kobayashi, Keiichi Itatani, Toshiaki Shimizu, Atsuo Itakura, Satoru Takeda
BACKGROUND: Intraventricular pressure difference (IVPD), the diastolic suction during early diastole, is known as a useful marker of myocardial diastolic function in adults with different heart diseases, but there are no studies of fetal IVPD. The aim of this study was to determine whether IVPD exists and changes prenatally and whether IVPD correlates with preexisting parameters to evaluate fetal cardiac diastolic function and ventricular dominance. METHODS: Cross-sectional study data (stroke volume, fetal cardiac output, E/A ratio, and myocardial performance index) from 117 healthy fetuses at 17 to 36 weeks of gestation were retrospectively evaluated...
September 9, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28899512/nepeta-deflersiana-attenuates-isoproterenol-induced-myocardial-injuries-in-rats-possible-involvement-of-oxidative-stress-apoptosis-inflammation-through-nuclear-factor-nf-%C3%AE%C2%BAb-downregulation
#20
Areej Mohammad Al-Taweel, Mohammad Raish, Shagufta Perveen, Ghada Ahmed Fawzy, Ajaz Ahmad, Mushtaq Ahmad Ansari, Shahid Mudassar, Majid Ahmad Ganaie
BACKGROUND: Nepeta deflersiana (Lamiaceae) is a perennial herb used in the Saudi and Yemeni folk medicine as an anti-inflammatory, carminative, and antirheumatic agent. PURPOSE: This study explores the phytochemistry of the plant and the cardioprotective effect of N. deflersiana ethanolic extract (NDEE) against isoproterenol (ISP)-induced myocardial injury in rats. DESIGN/METHODS: Cardiac function, serum cardiac enzymes, myocardial antioxidants, inflammatory, and apoptotic biomarkers, and histopathological parameters were studied in ISP-injured Wistar rat heart tissues...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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