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https://www.readbyqxmd.com/read/29144742/successful-identification-of-cardiac-troponin-calcium-sensitizers-using-a-combination-of-virtual-screening-and-roc-analysis-of-known-troponin-c-binders
#1
Melanie L Aprahamian, Svetlana B Tikunova, Morgan V Price, Andres F Cuesta, Jonathan P Davis, Steffen Lindert
Calcium-dependent cardiac muscle contraction is regulated by the protein complex troponin. Calcium binds to the N-terminal domain of troponin C (cNTnC) which initiates the process of contraction. Heart failure is a consequence of a disruption of this process. With the prevalence of this condition, a strong need exists to find novel compounds to increase the calcium sensitivity of cNTnC. Desirable are small chemical molecules that bind to the interface between cTnC and the cTnI switch peptide and exhibit calcium sensitizing properties by possibly stabilizing cTnC in an open conformation...
November 16, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29143684/evaluation-of-cardiopulmonary-and-inflammatory-markers-in-dogs-with-heartworm-infection-during-treatment-with-the-2014-american-heartworm-society-recommended-treatment-protocol
#2
Won-Kyoung Yoon, Ye-Won Kim, Sang-I L Suh, Ran Choi, Seung-Gon Lee, Changbaig Hyun
BACKGROUND: Heartworm disease in dogs is a life-threatening parasitic disease. Although adulticide treatment with melarsomine has been proven to be the most effective, complications associated with adulticide treatment are major concerns for clinicians. METHODS: This study evaluated the change in levels of D-dimer, interleukin-6, C-reactive protein and cardiac troponin I in 12 dogs with different severities of heartworm infection treated by the American Heartworm Society (AHS) recommended protocol during the treatment period...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29143665/cardiopulmonary-and-inflammatory-biomarkers-in-heartworm-disease
#3
REVIEW
Elena Carretón, Rodrigo Morchón, José Alberto Montoya-Alonso
In heartworm disease, several biomarkers of cardiopulmonary injury and inflammatory activity have been studied during the recent years. D-dimer is a fibrin degradation product present after a clot is degraded, which has been reported to provide support for the diagnosis of pulmonary thromboembolism in heartworm disease. Furthermore, concentrations increment with increased disease severity and during the adulticide treatment. This increase in concentration has proved to be valuable. Cardiac biomarkers troponin I, myoglobin and NT-proBNP demonstrated presence of myocardial injury and heart failure, especially in chronic infections, which in some cases, slightly improve after the adulticide treatment...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29142970/cardiovascular-disease-biomarkers-and-supar-in-predicting-decline-in-renal-function-a-prospective-cohort-study
#4
Salim S Hayek, Yi-An Ko, Mosaab Awad, Hina Ahmed, Brandon Gray, Kareem Mohammed Hosny, Hiroshi Aida, Melissa J Tracy, Changli Wei, Sanja Sever, Jochen Reiser, Arshed A Quyyumi
Introduction: Soluble urokinase-type plasminogen activator receptor (suPAR) strongly predicts outcomes and incident chronic kidney disease (CKD) in patients with cardiovascular disease (CVD). Whether the association between suPAR and CKD is a reflection of its overall association with chronic inflammation and poor CVD outcomes is unclear. We examined whether CVD biomarkers, including high-sensitivity C-reactive protein (hs-CRP), fibrin-degradation products (FDPs), heat-shock protein 70 (HSP-70), and high-sensitivity troponin I (hs-TnI) were associated with a decline in kidney function in the Emory Cardiovascular Biobank cohort, in which suPAR levels were shown to be predictive of both incident CKD and CVD outcomes...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29141241/mmp-9-and-its-regulators-timp-1-and-emmprin-in-patients-with-acute-st-elevation-myocardial-infarction-a-nordistemi-substudy
#5
Trine Baur Opstad, Ingebjørg Seljeflot, Ellen Bøhmer, Harald Arnesen, Sigrun Halvorsen
OBJECTIVES: The extracellular matrix is involved in wound repair after acute myocardial infarction (AMI). We investigated whether matrix metalloproteinase (MMP)-9, tissue inhibitor of metalloproteinases (TIMP)-1, and the MMP inducer (EMMPRIN) are associated with infarct size, left ventricular function, and clinical outcome in ST-elevation-MI (STEMI). METHODS: In 243 STEMI patients, circulating EMMPRIN, MMP-9, and TIMP-1 were analyzed 3 days and 3 months post-AMI...
November 16, 2017: Cardiology
https://www.readbyqxmd.com/read/29140548/a-phase-ib-open-label-single-arm-study-to-assess-the-safety-pharmacokinetics-and-impact-on-humoral-sensitization-of-sanguinate-infusion-in-patients-with-end-stage-renal-disease
#6
Bassam G Abu Jawdeh, E Steve Woodle, Abbie D Leino, Paul Brailey, Simon Tremblay, Tonya Dorst, Mouhamad H Abdallah, Amit Govil, Daniel Byczkowski, Hemant Misra, Abraham Abuchowski, Rita R Alloway
The endeavor to study desensitization in kidney transplantation hasn't been matched by an effort to investigate strategies to prevent sensitization. In this study (NCT02437422), we investigated the safety, impact on sensitization and pharmacokinetics of SANGUINATE (SG), a hemoglobin-based oxygen carrier, as a potential alternative to packed red blood cells (PRBC) in transplant candidates with end-stage renal disease (ESRD). Ten ESRD subjects meeting inclusion/exclusion (I/E) criteria were planned to receive 3 weekly infusions of SG (320mg/Kg)...
November 15, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29138670/simvastatin-ameliorates-diabetic-cardiomyopathy-by-attenuating-oxidative-stress-and-inflammation-in-rats
#7
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/29138293/icare-acs-improving-care-processes-for-patients-with-suspected-acute-coronary-syndrome-a-study-of-cross-system-implementation-of-a-national-clinical-pathway
#8
Martin P Than, John W Pickering, Jeremy M Dryden, Sally J Lord, S Andrew Aitken, Sally J Aldous, Kate E Allan, Michael W Ardagh, John W N Bonning, Rosie Callender, Laura R E Chapman, Jonathan P Christiansen, Andre P J Cromhout, Louise Cullen, Joanne M Deely, Gerard P Devlin, Katherine A Ferrier, Christopher M Florkowski, Christopher M A Frampton, Peter M George, Gregory J Hamilton, Allan S Jaffe, Andrew J Kerr, G Luke Larkin, Richard M Makower, Timothy J E Matthews, William A Parsonage, W Frank Peacock, Bradley F Peckler, Nicholaas C van Pelt, Louise Poynton, A Mark Richards, Anthony G Scott, Mark B Simmonds, David Smyth, Oliver P Thomas, Andrew C Y To, Stephen A Du Toit, Richard W Troughton, Kim M Yates
BACKGROUND : Efforts to safely reduce length of stay for emergency department patients with symptoms suggestive of acute coronary syndrome (ACS) have had mixed success. Few system-wide efforts affecting multiple hospital emergency departments have ever been evaluated. We evaluated the effectiveness of a nationwide implementation of clinical pathways for potential ACS in disparate hospitals. METHODS : This was a multicenter pragmatic stepped-wedge before-and-after trial in 7 New Zealand acute care hospitals with 31 332 patients investigated for suspected ACS with serial troponin measurements...
November 14, 2017: Circulation
https://www.readbyqxmd.com/read/29138234/mesalazine-induced-myopericarditis-in-a-patient-with-ulcerative-colitis
#9
Jalal Asadi, Sanjay S Bhandari, Nauman Ahmed
A 25-year-old male with a background of ulcerative colitis presented with a two-week history of central chest pain. His ECG on presentation showed global T wave inversion with a peak troponin I of 165 ng/ml. Clinical diagnosis of myopericarditis/myocarditis was made. Echocardiography and cardiac MR confirmed the diagnosis. On detailed assessment of his medication history, mesalazine was suspected as an aetiological factor, with discontinuation resulting in an improvement in symptoms, inflammatory markers and cardiac enzymes...
November 14, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/29137577/postoperative-troponin-measurement-as-a-screening-tool-for-adverse-cardiac-events-in-adult-patients-undergoing-moderate-or-major-non-cardiac-surgery
#10
D Coric, N A Smith
Elevated troponin levels within three days of surgery are strongly linked to major adverse cardiac events (MACE). However, the value of screening with troponin measurements is controversial. The extent to which this is done in routine practice is uncertain. We examined the medical records of all patients ≥45 years of age undergoing moderate or major non-cardiac surgery in our tertiary referral hospital over a six-month period. We determined how many patients had a troponin (TnT) measurement recorded in the first three days postoperatively, how many of these were abnormal, and the occurrence of MACE within 30 days...
November 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/29135622/troponin-limit-of-detection-plus-cardiac-risk-stratification-scores-to-rule-out-acute-myocardial-infarction-and-30-day-major-adverse-cardiac-events-in-ed-patients
#11
Mitchell D Datlow, Kelly M Gray, Adriel Watts, Deborah B Diercks, Bryn E Mumma
When screening for acute myocardial infarction (AMI), troponin levels below the 99th percentile, including those below the limit of detection (LOD), are considered normal. We hypothesized that a low-risk HEART score (0-3) or ACS Pretest Probability Assessment <2% plus a single troponin below the LOD would rule out both AMI and 30-day major adverse cardiac events (MACE). We studied all patients who presented to a single academic emergency department and received a troponin I (Siemens Ultra Troponin I) from September 1, 2013, to November 13, 2013 (n=888)...
December 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/29135621/efficacy-of-implementation-of-a-chest-pain-center-at-a-community-hospital
#12
Alexandra Davis, Jason Chiu, Stanley K Lau, Yih Jen Kok, Jonathan Y H Wu
INTRODUCTION: Chest pain is the second leading cause for emergency department (ED) visits in the United States; however, <20% of the patients have acute coronary syndrome that require immediate attention. The HEART score is designed for rapid risk stratification of ED chest pain patients using the following criteria: history, electrocardiogram, age, risk factors, and troponin. It has been shown to be superior in identifying patients with low (HEART score 0-3) and high (7-10) risk of major adverse cardiac events, who can then be rapidly discharged or admitted for intervention...
December 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/29135620/safety-of-a-1-hour-rule-out-high-sensitive-troponin-t-protocol-in-patients-with-chest-pain-at-the-emergency-department
#13
E Röttger, S de Vries-Spithoven, J B Reitsma, A Limburg, C E E van Ofwegen-Hanekamp, A W Hoes, J M Poldervaart
BACKGROUND: The 1-hour rule-out high-sensitive cardiac troponin T protocol (hs-cTnT), in which a serial troponin measurement is performed 1 hour after the first to assess the possibility of acute coronary syndrome (ACS), has been implemented in the European guidelines in 2015. Our aim was to assess the safety of this protocol in low-risk patients in the Emergency Department (ED) when implemented in daily practice. METHODS: Patients with acute chest pain presenting to the ED of our hospital and younger than 75 years were included (May 2013 to October 2014, The Netherlands)...
December 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/29133328/associations-of-time-of-day-with-cardiovascular-disease-risk-factors-measured-in-older-men-results-from-the-british-regional-heart-study
#14
Claudio Sartini, Peter H Whincup, S Goya Wannamethee, Barbara J Jefferis, Lucy Lennon, Gordon DO Lowe, Paul Welsh, Naveed Sattar, Richard W Morris
OBJECTIVE: We estimated associations of time of day with cardiovascular disease (CVD) risk factors measured in older men. METHODS: CVD risk factors (markers of inflammation and haemostasis, and cardiac markers) were measured on one occasion between 08:00 and 19:00 hours in 4252 men aged 60-79 years from the British Regional Heart Study. Linear models were used to estimate associations between time of day and risk factors. When an association was found, we examined whether the relationship between risk factors and cardiovascular mortality was affected by the adjustment for time of day using survival analyses...
November 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/29132262/diastolic-dysfunction-is-common-in-survivors-of-pediatric-differentiated-thyroid-carcinoma
#15
Mariëlle Sanne Klein Hesselink, Gianni Bocca, Yoran M Hummel, Adrienne H Brouwers, Johannes G M Burgerhof, Eveline W C M van Dam, Jourik A Gietema, Bas Havekes, Marry M van den Heuvel-Eibrink, Eleonora P M Corssmit, Leontien Kremer, Romana Netea-Maier, Helena J H van der Pal, Robin Peeters, John Th M Plukker, Cécile M Ronckers, Hanneke M van Santen, Peter van der Meer, Thera P Links, Wim J E Tissing
INTRODUCTION: Whether pediatric patients with differentiated thyroid carcinoma (DTC) are at risk of developing treatment-related adverse effects on cardiac function is unknown. We therefore studied in long-term survivors of pediatric DTC the prevalence of cardiac dysfunction and atrial fibrillation (AF) in relation to treatment variables, and the association between cardiac dysfunction and plasma biomarkers. PATIENTS AND METHODS: In this nationwide prospective multicenter study, cardiac assessments were performed in 66 adult survivors of pediatric DTC (age at diagnosis ≤18 years and follow-up ≥5 years after diagnosis) treated in The Netherlands between 1970 and 2009...
November 13, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29131477/a-risk-assessment-score-and-initial-high-sensitivity-troponin-combine-to-identify-low-risk-of-acute-myocardial-infarction-in-the-emergency-department
#16
John W Pickering, Dylan Flaws, Stephen W Smith, Jaimi Greenslade, Louise Cullen, William Parsonage, Edward Carlton, A Mark Richards, Richard Troughton, Christopher Pemberton, Peter M George, Martin P Than
OBJECTIVES: Early discharge of patients with presentations triggering assessment for possible acute coronary syndrome is safe when clinical assessment indicates low-risk, biomarkers are negative, and electrocardiograms (ECGs) are non-ischemic. We hypothesized that the Emergency Department Assessment of Chest Pain Score (EDACS) combined with a single measurement of high-sensitivity cardiac troponin (hs-cTn) could allow early discharge of a clinically meaningful proportion of patients. METHODS: We pooled data from 4 patient cohorts from New Zealand and Australia presenting to an ED with symptoms suggestive of ACS...
November 13, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29130969/mechanistic-links-underlying-the-impact-of-c-reactive-protein-on-muscle-mass-in-elderly
#17
Britta Wåhlin-Larsson, Daniel J Wilkinson, Emelie Strandberg, Adrian Hosford-Donovan, Philip J Atherton, Fawzi Kadi
BACKGROUND/AIMS: Mechanisms underlying the relationship between systemic inflammation and age-related decline in muscle mass are poorly defined. The purpose of this work was to investigate the relationship between the systemic inflammatory marker CRP and muscle mass in elderly and to identify mechanisms by which CRP mediates its effects on skeletal muscle, in-vitro. METHODS: Muscle mass and serum CRP level were determined in a cohort of 118 older women (67±1.7 years)...
November 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29130958/propofol-through-upregulating-caveolin-3-attenuates-post-hypoxic-mitochondrial-damage-and-cell-death-in-h9c2-cardiomyocytes-during-hyperglycemia
#18
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/29130017/clinical-characteristics-management-and-outcomes-of-suspected-poststroke-acute-coronary-syndrome
#19
Sylvia Marie Biso, Marvin Lu, Toni Anne De Venecia, Supakanya Wongrakpanich, Mary Rodriguez-Ziccardi, Sujani Yadlapati, Marina Kishlyansky, Harish Seetha Rammohan, Vincent M Figueredo
Background: Acute coronary syndrome (ACS) can complicate acute ischemic stroke, causing significant morbidity and mortality. To date, literatures that describe poststroke acute coronary syndrome and its morbidity and mortality burden are lacking. Methods: This is a single center, retrospective study where clinical characteristics, cardiac evaluation, and management of patients with suspected poststroke ACS were compared and analyzed for their association with inpatient mortality and 1-year all-cause mortality...
2017: Cardiology Research and Practice
https://www.readbyqxmd.com/read/29129262/biochemical-risk-markers-and-10-year-incidence-of-atherosclerotic-cardiovascular-disease-independent-predictors-improvement-in-pooled-cohort-equation-and-risk-reclassification
#20
Emmanuel Akintoye, Alexandros Briasoulis, Luis Afonso
BACKGROUND: The recommendation for statins in primary atherosclerotic cardiovascular disease (ASCVD) prevention begins with risk estimation using the pooled cohort equation (PCE). However, treatment decisions may still remain uncertain after PCE-based assessment. We therefore developed a simple biomarker score that could supplement decision making. METHODS: Using the prospectively collected database of the Multi-Ethnic Study of Atherosclerosis, we identified biochemical risk markers that independently predicted 10-year risk of ASCVD and developed an aggregate biomarker score based on them...
November 2017: American Heart Journal
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