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https://www.readbyqxmd.com/read/28432941/validation-of-a-spe-hplc-uv-method-for-the-quantification-of-a-new-er-specific-photosensitizer-or-141-in-blood-serum-using-total-error-concept
#1
Emilie Bony, Yohan Mace, Adán Pinto, David Delvaux, Robert Kiss, Olivier Riant, Olivier Feron, Joëlle Quetin-Leclercq
The aim of this work is to develop the first validated HPLC-UV method quantification in blood serum for a new endoplasmic reticulum (ER)-specific benzophenazine photosensitizer (OR-141). A fast solid phase extraction (SPE) cleaning sample procedure was achieved on C18 encapped (ec) SPE cartridges and the separation was performed on a RP-18e column (5μM) using an isocratic elution with methanol. The method has been fully validated according to accuracy profiles based on total error and tolerance intervals. Calibration was performed in the matrix and trueness (<4...
April 13, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28432673/prognostic-value-of-left-ventricular-dyssynchrony-evaluated-by-gated-myocardial-perfusion-imaging-in-patients-with-chronic-kidney-disease-and-normal-perfusion-defect-scores
#2
Hiroaki Mori, Satoshi Isobe, Susumu Suzuki, Kazumasa Unno, Ryota Morimoto, Naoaki Kano, Takahiro Okumura, Yoshinari Yasuda, Katsuhiko Kato, Toyoaki Murohara
BACKGROUND: This study aimed to investigate whether indices of left ventricular (LV) dyssynchrony by gated myocardial perfusion SPECT (GMPS) could be useful to predict prognosis in chronic kidney disease (CKD) patients with normal perfusion defect scores. METHODS: One hundred and sixty-seven CKD patients with normal perfusion defect scores on adenosine-stress (201)Tl GMPS and no previous history of overt heart diseases were enrolled. Phase standard deviation (PSD) and bandwidth (BW) were automatically calculated from GMPS...
April 21, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28431769/trends-in-admissions-for-chest-pain-after-the-introduction-of-high-sensitivity-cardiac-troponin-t
#3
Nadia Bandstein, Rickard Ljung, Magnus Lundbäck, Magnus Johansson, Martin J Holzmann
BACKGROUND: The aim was to describe temporal trends in admission rates for chest pain and patient outcomes after the clinical introduction of the high-sensitivity cardiac troponin T (hs-cTnT) assay. METHODS: We included all patients aged >25years presenting with chest pain to the emergency department (ED) at our hospital during 2011-2014. For each year, rates of admissions, coronary angiographies, and revascularizations were determined. After adjustment for confounders, hazard ratios (HR) with 95% confidence intervals (CI) were calculated for mortality or major adverse cardiac events (MACE) within 1year of the ED visit per year, using 2011 as referent...
April 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28429111/impact-of-serum-albumin-levels-on-long-term-outcomes-in-patients-undergoing-percutaneous-coronary-intervention
#4
Hideki Wada, Tomotaka Dohi, Katsumi Miyauchi, Jun Shitara, Hirohisa Endo, Shinichiro Doi, Ryo Naito, Hirokazu Konishi, Shuta Tsuboi, Manabu Ogita, Takatoshi Kasai, Shinya Okazaki, Kikuo Isoda, Satoru Suwa, Hiroyuki Daida
Epidemiological studies have demonstrated an association between low serum albumin levels and both coronary artery disease (CAD) and mortality. However, the long-term clinical impact of low serum albumin level in patients with CAD undergoing percutaneous coronary intervention (PCI) has not yet been fully investigated. We studied 2860 all-comer patients with CAD who underwent their first PCI and had data available for pre-procedural serum albumin between 2000 and 2011. Patients were assigned to tertiles based on pre-procedural albumin levels...
April 20, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28428450/independent-and-combined-effects-of-serum-albumin-and-c-reactive-protein-on-long-term-outcomes-of-patients-undergoing-percutaneous-coronary-intervention
#5
Hideki Wada, Tomotaka Dohi, Katsumi Miyauchi, Shinichiro Doi, Ryo Naito, Hirokazu Konishi, Shuta Tsuboi, Manabu Ogita, Takatoshi Kasai, Shinya Okazaki, Kikuo Isoda, Satoru Suwa, Hiroyuki Daida
BACKGROUND: Both inflammation and malnutrition have been reported to be closely linked to atherosclerosis, especially in patients with chronic kidney disease (CKD). The combined effects of serum albumin and C-reactive protein (CRP) on clinical outcomes after percutaneous coronary intervention (PCI) were investigated.Methods and Results:A total of 2,164 all-comer patients with coronary artery disease who underwent their first PCI and had data available for preprocedural serum albumin and hs-CRP levels between 2000 and 2011 were studied...
April 19, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28427844/cost-effectiveness-of-influenza-vaccination-in-patients-with-acute-coronary-syndrome-in-korea
#6
Jinuk Suh, Boyeon Kim, Yunseok Yang, Dong-Churl Suh, Eunyoung Kim
BACKGROUND: Influenza can cause cardiovascular abnormalities by inappropriately activating the coagulation cascade. Therefore, influenza vaccination is important because it decreases the risk of hospitalization for and mortality associated with heart disease. In particular, it reduces the occurrence of major adverse cardiovascular events (MACEs) in acute coronary syndrome (ACS) patients. Our study aimed to estimate the disease burden of MACEs and its related direct and indirect costs in ACS patients...
April 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28424966/transcriptomic-analysis-of-molecular-responses-in-malus-domestica-m26-roots-affected-by-apple-replant-disease
#7
Stefan Weiß, Melanie Bartsch, Traud Winkelmann
Gene expression studies in roots of apple replant disease affected plants suggested defense reactions towards biotic stress to occur which did not lead to adequate responses to the biotic stressors. Apple replant disease (ARD) leads to growth inhibition and fruit yield reduction in replanted populations and results in economic losses for tree nurseries and fruit producers. The etiology is not well understood on a molecular level and causal agents show a great diversity indicating that no definitive cause, which applies to the majority of cases, has been found out yet...
April 19, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28423233/ivabradine-versus-metoprolol-in-patients-with-acute-inferior-wall-myocardial-infarction-expanding-arena-for-ivabradine
#8
Rajendra K Go Khroo, K Priti, Bhanwar L Ranwa, Kamal Kishor, Devendra Bisht, Sajal Gupta
BACKGROUND: Atrioventricular (AV) blocks are of concern with the use of beta blockers in inferior wall myocardial infarction (MI). Ivabradine lowers heart rate with a lesser risk of AV blocks. OBJECTIVES: To compare ivabradine with metoprolol in acute inferior wall MI in terms of feasibility, tolerability and efficacy METHODS: It was a prospective double blind single centre randomized controlled study. Of 1032 patients with acute inferior wall MI, 468 eligible patients were randomized in 1:1 manner to ivabradine (group A) and metoprolol (group B)...
April 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28423226/rvx-208-a-novel-bet-protein-inhibitor-role-as-an-inducer-of-apo-a-i-hdl-and-beyond
#9
Gopal C Ghosh, Rajarshi Bhadra, Raktim K Ghosh, Kinjal Banerjee, Anjan Gupta
Low density cholesterol (LDL) has been the prime target of currently available lipid-lowering therapies although current research is expanding the focus beyond LDL lowering and has included high density cholesterol (HDL) also as the target. Bromo and extra-terminal (BET) proteins are implicated in the regulation of transcription of several regulatory genes and regulation of pro-inflammatory pathways. As atherosclerosis is an inflammatory pathway and studies showed that BET inhibition has a role in inhibiting inflammation, the concept of BET inhibition came in the field of atherosclerosis...
April 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28421375/obstructive-sleep-apnea-increases-the-risk-of-cardiac-events-after-percutaneous-coronary-intervention-a-meta-analysis-of-prospective-cohort-studies
#10
REVIEW
Hua Qu, Ming Guo, Ying Zhang, Da-Zhuo Shi
PURPOSE: Recent studies have shown an association between obstructive sleep apnea (OSA) and coronary artery disease; however, the association between OSA and cardiac outcomes in patients after percutaneous coronary intervention (PCI) remains undetermined. METHODS: PubMed, EMBASE, and CENTRAL were searched from inception to July 2016 for cohort studies that followed up with patients after PCI, and evaluated their overnight sleep patterns within 1 month for major adverse cardiac events (MACEs) as primary outcomes including cardiac death, non-fatal myocardial infarction (MI), and coronary revascularization and secondary outcomes including re-admission for heart failure and stroke...
April 18, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28420802/clinical-decision-making-for-the-hemodynamic-gray-zone-ffr-0-75-0-80-and-long-term-outcomes
#11
Shiv Kumar Agarwal, Srikanth Kasula, Mohan M Edupuganti, Sameer Raina, Fnu Shailesh, Ahmed Almomani, Jason J Payne, Naga V Pothineni, Barry F Uretsky, Abdul Hakeem
BACKGROUND: Fractional flow reserve (FFR) value between 0.75 and 0.80 is considered the "gray zone" and outcomes data relative to treatment strategy (revascularization vs medical therapy alone [deferral]) are limited for this group. METHODS AND RESULTS: A total of 238 patients (64.3 ± 8.6 years; 97% male; 45% diabetic) with gray-zone FFR were followed for the primary endpoint of major adverse cardiovascular event (MACE), defined as a composite of death, myocardial infarction (MI), and target-vessel revascularization...
April 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28419280/fractional-flow-reserve-and-pressure-bounded-coronary-flow-reserve-to-predict-outcomes-in-coronary-artery-disease
#12
Jung-Min Ahn, Frederik M Zimmermann, Nils P Johnson, Eun-Seok Shin, Bon-Kwon Koo, Pil Hyung Lee, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Cheol Whan Lee, Seong-Wook Park, Nico H J Pijls, Seung-Jung Park
Aims: Fractional flow reserve (FFR) has proven to its prognostic and therapeutic value. However, the additive prognostic value of coronary flow reserve (CFR) remains unclear. This study sought to investigate the clinical utility of combined FFR and CFR measurements to predict outcomes. Methods and results: Using the prospective, multicentre Interventional Cardiology Research Incooperation Society-FFR registry, a total of 2088 lesions from 1837 patients were included in this substudy...
April 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28418520/rapid-rule-out-of-acute-myocardial-infarction-with-a-single-high-sensitivity-cardiac-troponin-t-measurement-below-the-limit-of-detection-a-collaborative-meta-analysis
#13
John W Pickering, Martin P Than, Louise Cullen, Sally Aldous, Ewoud Ter Avest, Richard Body, Edward W Carlton, Paul Collinson, Anne Marie Dupuy, Ulf Ekelund, Kai M Eggers, Christopher M Florkowski, Yonathan Freund, Peter George, Steve Goodacre, Jaimi H Greenslade, Allan S Jaffe, Sarah J Lord, Arash Mokhtari, Christian Mueller, Andrew Munro, Sebbane Mustapha, William Parsonage, W Frank Peacock, Christopher Pemberton, A Mark Richards, Juan Sanchis, Lukas P Staub, Richard Troughton, Raphael Twerenbold, Karin Wildi, Joanna Young
Background: High-sensitivity assays for cardiac troponin T (hs-cTnT) are sometimes used to rapidly rule out acute myocardial infarction (AMI). Purpose: To estimate the ability of a single hs-cTnT concentration below the limit of detection (<0.005 µg/L) and a nonischemic electrocardiogram (ECG) to rule out AMI in adults presenting to the emergency department (ED) with chest pain. Data Sources: EMBASE and MEDLINE without language restrictions (1 January 2008 to 14 December 2016)...
April 18, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28417608/comparison-of-antithrombotic-agents-during-urgent-percutaneous-coronary-intervention-following-thrombolytic-therapy-a-retrospective-cohort-study
#14
Jaya R Mallidi, Peter Robinson, Paul F Visintainer, Amir S Lotfi, Scott Mulvey, Gregory R Giugliano
BACKGROUND: The optimal antithrombotic regimen for urgent percutaneous coronary interventions (PCI) following thrombolytic therapy for ST segment myocardial infarction (STEMI) is currently unknown. METHODS: We performed a retrospective analysis of all patients referred to our institution from January 2005 to July 2014 who underwent urgent PCI within 24 hr after receiving thrombolytic therapy. The patients were divided into three cohorts based on the anticoagulation strategy during PCI-bivalirudin, heparin alone or heparin plus Glycoprotein IIb/IIIa inhibitor (GPI)...
April 18, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28417594/real-world-supported-unprotected-left-main-percutaneous-coronary-intervention-with-impella-device-data-from-the-uspella-registry
#15
Theodore Schreiber, Wah Wah Htun, Nimrod Blank, Tesfaye Telila, Nestor Mercado, Alexandros Briasoulis, Amir Kaki, Ashok Kondur, Ahmad Munir, Cindy Grines
BACKGROUND: Patients with left main (LM) coronary artery disease are increasingly being treated with percutaneous revascularization (PCI). The safety, feasibility, and efficacy of unprotected LM intervention (ULMI) with hemodynamic support by Impella device have not been evaluated previously. OBJECTIVE: Using a large retrospective single center database from the USpella registry, we evaluated the safety, feasibility, and potential benefits of periprocedural left ventricular assist with axial flow Impella 2...
April 18, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28413521/efficacy-of-arsenic-trioxide-drug-eluting-stents-in-the-treatment-of-coronary-heart-disease
#16
Shasha Zhang, Yuping Zhang, Shichuan Li, Zhifeng Li
The aim of the current study was to evaluate the safety and clinical efficacy of arsenic trioxide drug-eluting (AVI) stents, manufactured in China, for the treatment of coronary heart disease (CHD). Between January and August 2014, 40 patients with CHD admitted to Yongchuan Hospital with implanted AVI stents alone were selected. A one-year clinical follow-up was completed and one year postoperative coronary angiography was reviewed. Major adverse cardiovascular events (MACE), recurrent angina, stent restenosis and stent thrombosis cases were detected...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28412256/procedural-and-long-term-outcomes-of%C3%A2-percutaneous-coronary-intervention-for%C3%A2-in-stent-chronic-total-occlusion
#17
Lorenzo Azzalini, Rustem Dautov, Soledad Ojeda, Susanna Benincasa, Barbara Bellini, Francesco Giannini, Jorge Chavarría, Manuel Pan, Mauro Carlino, Antonio Colombo, Stéphane Rinfret
OBJECTIVES: The study sought to investigate the long-term outcomes and predictors of adverse events of percutaneous coronary intervention (PCI) for in-stent chronic total occlusion (IS-CTO). BACKGROUND: IS-CTO PCI has traditionally been associated with suboptimal success rates. METHODS: We performed a multicenter registry of consecutive patients undergoing CTO PCI at 3 specialized centers. Patients were divided in IS-CTO and de novo CTO. The primary endpoint (major adverse cardiac events [MACE]) was a composite of cardiac death, target-vessel myocardial infarction, and ischemia-driven target-vessel revascularization (TVR) on follow-up...
April 12, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28412122/coronary-artery-disease-is-associated-with-an-increased-mortality-rate-following-video-assisted-thoracoscopic-lobectomy
#18
Alberto Sandri, Rene Horsleben Petersen, Herbert Decaluwé, Johnny Moons, Mark K Ferguson, Henrik Jessen Hansen, Alessandro Brunelli
OBJECTIVE: To compare the incidence of major adverse cardiac events (MACE) and mortality following video-assisted thoracoscopic surgery (VATS) lobectomy in patients with and without coronary artery disease (CAD). METHODS: Multicentre retrospective analysis of 1699 patients undergoing VATS lobectomy (January 2012-March 2015). CAD definition: previous acute myocardial infarct (AMI), angina, percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG)...
March 21, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28408703/accuracy-of-rb-82-pet-ct-mpi-with-regadenoson-stress-including-three-year-clinical-outcomes-reporting-present-pet-ct-regadenoson-stress-experience-at-the-va-north-texas
#19
Michael Brophey, Irfan Farukhi, Rosinda Castanon, Rosinda DeLaPena, Ledjona Bradshaw, Subhash Banerjee
The purpose of this study was to determine the clinical accuracy of Rb-82 PET/CT MPI when performed with regadenoson stress in a VA population of patients. Methods: The initial cohort of 480 patients undergoing vasodilator PET MPI with regadenoson stress at our institution from September 2009 through July 2010 were closely tracked for short term outcomes based on correlation with invasive coronary catheterization. Long term outcomes were determined by major adverse cardiac event rates (MACE) based on data extraction from the electronic medical record and grouped by SSS for a three year period...
April 13, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28407453/stressing-escherichia-coli-to-educate-students-about-research-a-cure-to-investigate-multiple-levels-of-gene-regulation
#20
Janet McDonough, Lara K Goudsouzian, Agllai Papaj, Ashley R Maceli, Vanja Klepac-Ceraj, Celeste N Peterson
Course-based undergraduate research experiences (CUREs) have been shown to increase student retention and learning in the biological sciences. Most CURES cover only one aspect of gene regulation, such as transcriptional control. Here we present a new inquiry-based lab that engages understanding of gene expression from multiple perspectives. Students carry out a forward genetic screen to identify regulators of the stationary phase master regulator RpoS in the model organism Escherichia coli and then use a series of reporter fusions to determine if the regulation is at the level of transcription or the post-transcription level...
April 13, 2017: Biochemistry and Molecular Biology Education
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