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cardiovascular molecular imaging

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https://www.readbyqxmd.com/read/29650765/prospective-cardiovascular-genetics-evaluation-in-spontaneous-coronary-artery-dissection
#1
M Ihsan Kaadan, Carolyn MacDonald, Francesca Ponzini, Jessica Duran, Kelsey Newell, Linda Pitler, Angela Lin, Ido Weinberg, Malissa J Wood, Mark E Lindsay
BACKGROUND: Previous studies describing genetics evaluation in spontaneous coronary artery dissection (SCAD) have been retrospective in nature or presented as single case reports. As part of a dedicated clinical program, we evaluated patients in cardiovascular genetics clinic to determine the role of genetically triggered vascular disease and genetic testing in SCAD. METHODS AND RESULTS: Patient data were entered prospectively into the Massachusetts General Hospital SCAD registry database from July 2013 to September 2017...
April 2018: Circulation. Genomic and precision medicine
https://www.readbyqxmd.com/read/29626939/the-3m-approach-to-cardiovascular-infections-multimodality-multitracers-and-multidisciplinary
#2
REVIEW
Martina Sollini, Raffaella Berchiolli, Roberto C Delgado Bolton, Alexia Rossi, Margarita Kirienko, Roberto Boni, Elena Lazzeri, Riemer Slart, Paola Anna Erba
Cardiovascular infections are associated with high morbidity and mortality. Early diagnosis is crucial for adequate patient management, as early treatment improves the prognosis. The diagnosis cannot be made on the basis of a single symptom, sign, or diagnostic test. Rather, the diagnosis requires a multidisciplinary discussion in addition to the integration of clinical signs, microbiology data, and imaging data. The application of multimodality imaging, including molecular imaging techniques, has improved the sensitivity to detect infections involving heart valves and vessels and implanted cardiovascular devices while also allowing for early detection of septic emboli and metastatic infections before these become clinically apparent...
May 2018: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/29588317/spatiotemporal-multi-omics-mapping-generates-a-molecular-atlas-of-the-aortic-valve-and-reveals-networks-driving-disease
#3
Florian Schlotter, Arda Halu, Shinji Goto, Mark C Blaser, Simon C Body, Lang H Lee, Hideyuki Higashi, Daniel M DeLaughter, Joshua D Hutcheson, Payal Vyas, Tan Pham, Maximillian A Rogers, Amitabh Sharma, Christine E Seidman, Joseph Loscalzo, Jonathan G Seidman, Masanori Aikawa, Sasha A Singh, Elena Aikawa
Background -No pharmacological therapy exists for calcific aortic valve disease (CAVD), which confers a dismal prognosis without invasive valve replacement. The search for therapeutics and early diagnostics is challenging since CAVD presents in multiple pathological stages. Moreover, it occurs in the context of a complex, multi-layered tissue architecture, a rich and abundant extracellular matrix phenotype, and a unique, highly plastic and multipotent resident cell population. Methods -A total of 25 human stenotic aortic valves obtained from valve replacement surgeries were analyzed by multiple modalities, including transcriptomics and global unlabeled and label-based tandem-mass-tagged proteomics...
March 27, 2018: Circulation
https://www.readbyqxmd.com/read/29566551/in-vivo-mri-detection-of-atherosclerosis-in-apoe-deficient-mice-by-using-tenascin-c-targeted-uspio
#4
Yan Li, Jun Liu, Jun-Wen Huang, Jia-Cheng Song, Zhan-Long Ma, Hai-Bin Shi
Background Atherosclerosis is the main cause of cardiovascular and cerebrovascular diseases. Non-invasive molecular imaging to detect and characterize the plaques is essential for reducing life-threatening cardiovascular events. Purpose To investigate the possibility of the anti-tenascin-C-USPIO specific probe as a molecular marker of atherosclerotic plaques detected by 7.0-T magnetic resonance imaging (MRI). Material and Methods Twenty ApoE-/- mice fed with a high fat diet were used for detecting the aorta arch atherosclerotic plaques by 7...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29563880/antineoplastic-drug-induced-cardiotoxicity-a-redox-perspective
#5
REVIEW
Gilda Varricchi, Pietro Ameri, Christian Cadeddu, Alessandra Ghigo, Rosalinda Madonna, Giancarlo Marone, Valentina Mercurio, Ines Monte, Giuseppina Novo, Paolo Parrella, Flora Pirozzi, Antonio Pecoraro, Paolo Spallarossa, Concetta Zito, Giuseppe Mercuro, Pasquale Pagliaro, Carlo G Tocchetti
Antineoplastic drugs can be associated with several side effects, including cardiovascular toxicity (CTX). Biochemical studies have identified multiple mechanisms of CTX. Chemoterapeutic agents can alter redox homeostasis by increasing the production of reactive oxygen species (ROS) and reactive nitrogen species RNS. Cellular sources of ROS/RNS are cardiomyocytes, endothelial cells, stromal and inflammatory cells in the heart. Mitochondria, peroxisomes and other subcellular components are central hubs that control redox homeostasis...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29563664/optical-spectroscopic-imaging-for-cell-therapy-and-tissue-engineering
#6
G Kate Park, Hoseok, Gaon Sandy Kim, Nathaniel S Hwang, Hak Soo Choi
Cell-based therapies hold great potential to treat a wide range of human diseases, yet the mechanisms responsible for cell migration and homing are not fully understood. Emerging molecular imaging technology enables in vivo tracking of transplanted cells and their therapeutic efficacy, which together will improve the clinical outcome of cell-based therapy. Particularly, optical imaging provides highly sensitive, safe (non-radioactive), cost-effective, and fast solutions for real-time cellular trafficking compared to other conventional molecular imaging modalities...
2018: Applied Spectroscopy Reviews
https://www.readbyqxmd.com/read/29556362/ultrasound-molecular-imaging-of-atherosclerosis-for-early-diagnosis-and-therapeutic-evaluation-through-leucocyte-like-multiple-targeted-microbubbles
#7
Fei Yan, Yu Sun, Yang Mao, Meiying Wu, Zhiting Deng, Shuai Li, Xin Liu, Li Xue, Hairong Zheng
Cardiovascular diseases resulting from atherosclerosis have become a serious threat to human health. It is well-known that an ongoing inflammatory response is involved during atherosclerosis progression that ultimately results in the accumulation of lipids and formation of plaques. Monitoring the pathological changes during the inflammatory response will be of great significance for early diagnosis and therapeutic evaluation of atherosclerosis. Targeted contrast-enhanced ultrasonography has been shown to be a promising noninvasive imaging technique for evaluating the degree of atherosclerosis and may potentially be translated to clinical imaging in the future...
2018: Theranostics
https://www.readbyqxmd.com/read/29554644/radioiodinated-esmolol-as-a-highly-selective-radiotracer-for-myocardial-perfusion-imaging-in-silico-study-and-preclinical-evaluation
#8
Tamer M Sakr, M H Sanad, Walaa H Abd-Alla, Dina H Salama, Gehan M Saleh
Challenges facing cardiovascular imaging necessitate innovation of better radiopharmaceuticals to augment or replace the existing ones. This research assesses the ability and competency of radioiodinated esmolol as a potential cardio selective imaging agent. Radioiodinated esmolol was synthesized with 97.3 ± 0.3% radiochemical yield and with high stability up to 48 h at room temperature as well as in rat serum. Molecular modeling study was performed to confirm the binding of iodinated esmolol to β1 -adrenergic receptor...
March 9, 2018: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29535164/glycosylation-profile-of-immunoglobulin-g-is-cross-sectionally-associated-with-cardiovascular-disease-risk-score-and-subclinical-atherosclerosis-in-two-independent-cohorts
#9
Cristina Menni, Ivan Gudelj, Erin MacDonald-Dunlop, Massimo Mangino, Jonas Zierer, Erim Bešić, Peter Joshi, Irena Trbojević-Akmačić, Phil J Chowienczyk, Timothy D Spector, James F Wilson, Gordan Lauc, Ana M Valdes
<u>Rationale:</u> One measure of protein glycosylation (GlycA) has been reported to predict higher cardiovascular risk by reflecting inflammatory pathways <u>Objective:</u> To assess the role of a comprehensive panel of immunoglobulin (IgG) glycosylation traits on traditional risk factors for cardiovascular disease and on presence of subclinical atherosclerosis in addition to GlycA. <u>Methods and Results:</u> We measured 76 IgG glycosylation traits in 2970 women (age range 40-79 years) from the TwinsUK cohort and correlated it to their estimated 10-year atherosclerotic cardiovascular disease (ASCVD) risk score and their carotid and femoral plaque measured by ultrasound imaging...
March 13, 2018: Circulation Research
https://www.readbyqxmd.com/read/29520164/the-potential-theragnostic-diagnostic-therapeutic-application-of-exosomes-in-diverse-biomedical-fields
#10
REVIEW
Yong-Seok Kim, Jae-Sung Ahn, Semi Kim, Hyun-Jin Kim, Shin-Hee Kim, Ju-Seop Kang
Exosomes are membranous vesicles of 30-150 nm in diameter that are derived from the exocytosis of the intraluminal vesicles of many cell types including immune cells, stem cells, cardiovascular cells and tumor cells. Exosomes participate in intercellular communication by delivering their contents to recipient cells, with or without direct contact between cells, and thereby influence physiological and pathological processes. They are present in various body fluids and contain proteins, nucleic acids, lipids, and microRNAs that can be transported to surrounding cells...
March 2018: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/29505511/cardiovascular-risk-factors-in-patients-with-combined-central-retinal-vein-occlusion-and-cilioretinal-artery-occlusion-case-report
#11
Andrzej Grzybowski, Waldemar Elikowski, Magdalena Gaca-Wysocka
RATIONALE: To analyze cardiovascular risk factors and comorbidity of acute unilateral visual loss due to combined central retinal vein occlusion (CRVO) and cilioretinal artery occlusion (CLRAO). PATIENT CONCERNS: Among patients with retinal vein or artery occlusion hospitalized at the Department of Ophthalmology between January 2011 and August 2017, subjects with combined CRVO/CLRAO were selected. All of them underwent ophthalmologic and cardiologic examination, including fluorescein angiography, optical coherence tomography, 12-lead electrocardiogram, transthoracic and transesophageal echocardiography, carotid Doppler sonography, cerebral magnetic resonance imaging, and a panel of laboratory tests...
January 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29489584/cardiac-positron-emission-tomography-magnetic-resonance-imaging-current-status-and-future-directions
#12
Jeffrey M C Lau, Demetrios A Raptis, Richard Laforest, Felix Nensa, Jie Zheng, Robert J Gropler, Pamela K Woodard
Simultaneous acquisition positron emission tomography-magnetic resonance imaging (PET-MRI) has the ability to combine anatomic information derived from cardiac MRI with quantitative capabilities of cardiac PET and MRI and the promise of molecular imaging by specific PET tracers. This combination of cardiac PET and MRI delivers a robust and comprehensive clinical examination. It has the potential to assess various cardiovascular conditions, including assessment of myocardial ischemia, infarction, and function, as well as specific characterization of inflammatory and infiltrative heart diseases such as cardiac sarcoid and amyloid...
February 27, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29481038/hierarchical-microplates-as-drug-depots-with-controlled-geometry-rigidity-and-therapeutic-efficacy
#13
Martina Di Francesco, Rosita Primavera, Davide Romanelli, Roberto Palomba, Rui Cruz Pereira, Tiziano Catelani, Christian Celia, Luisa Di Marzio, Massimo Fresta, Daniele Di Mascolo, Paolo Decuzzi
A variety of microparticles have been proposed for the sustained and localized delivery of drugs whit the objective of increasing therapeutic indexes by circumventing filtering organs and biological barriers. Yet, the geometrical, mechanical and therapeutic properties of such microparticles cannot be simultaneously and independently tailored during the fabrication process in order to optimize their performance. In this work, a top-down approach is employed to realize micron-sized polymeric particles, called microPlates (μPLs), for the sustained release of therapeutic agents...
February 26, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29449411/molecular-imaging-in-drug-discovery-and-development
#14
Jonathan R Lindner, Jeanne Link
Noninvasive imaging has played an increasing role in the process of cardiovascular drug development. This review focuses specifically on the use of molecular imaging, which has been increasingly applied to improve and accelerate certain preclinical steps in drug development, including the identification of appropriate therapeutic targets, evaluation of on-target and off-target effects of candidate therapies, assessment of dose response, and the evaluation of drug or biological biodistribution and pharmacodynamics...
February 2018: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29431119/hypermetabolic-macrophages-in-rheumatoid-arthritis-and-coronary-artery-disease-due-to-glycogen-synthase-kinase-3b-inactivation
#15
Markus Zeisbrich, Rolando E Yanes, Hui Zhang, Ryu Watanabe, Yinyin Li, Lukas Brosig, Jison Hong, Barbara B Wallis, John C Giacomini, Themistocles L Assimes, Jörg J Goronzy, Cornelia M Weyand
OBJECTIVES: Accelerated atherosclerotic disease typically complicates rheumatoid arthritis (RA), leading to premature cardiovascular death. Inflammatory macrophages are key effector cells in both rheumatoid synovitis and the plaques of coronary artery disease (CAD). Whether both diseases share macrophage-dependent pathogenic mechanisms is unknown. METHODS: Patients with RA or CAD (at least one myocardial infarction) and healthy age-matched controls were recruited into the study...
February 3, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29370377/big-data-from-electronic-health-records-for-early-and-late-translational-cardiovascular-research-challenges-and-potential
#16
Harry Hemingway, Folkert W Asselbergs, John Danesh, Richard Dobson, Nikolaos Maniadakis, Aldo Maggioni, Ghislaine Jm van Thiel, Maureen Cronin, Gunnar Brobert, Panos Vardas, Stefan D Anker, Diederick E Grobbee, Spiros Denaxas
Aims: Cohorts of millions of people's health records, whole genome sequencing, imaging, sensor, societal and publicly available data present a rapidly expanding digital trace of health. We aimed to critically review, for the first time, the challenges and potential of big data across early and late stages of translational cardiovascular disease research. Methods and results: We sought exemplars based on literature reviews and expertise across the BigData@Heart Consortium...
August 29, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29361487/novel-approach-for-in-vivo-detection-of-vulnerable-coronary-plaques-using-molecular-3-t-cmr-imaging-with-an-albumin-binding-probe
#17
Leif-Christopher Engel, Ulf Landmesser, Kevin Gigengack, Thomas Wurster, Constantina Manes, Georg Girke, Milosz Jaguszewski, Carsten Skurk, David M Leistner, Alexander Lauten, Andreas Schuster, Bernd Hamm, Rene M Botnar, Marcus R Makowski, Boris Bigalke
OBJECTIVES: This study sought to investigate the potential of the noninvasive albumin-binding probe gadofosveset-enhanced cardiac magnetic resonance (GE-CMR) for detection of coronary plaques that can cause acute coronary syndromes (ACS). BACKGROUND: ACS are frequently caused by rupture or erosion of coronary plaques that initially do not cause hemodynamically significant stenosis and are therefore not detected by invasive x-ray coronary angiography (XCA). METHODS: A total of 25 patients with ACS or symptoms of stable coronary artery disease underwent GE-CMR, clinically indicated XCA, and optical coherence tomography (OCT) within 24 h...
January 12, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29361478/targeted-imaging-for-cell-death-in-cardiovascular-disorders
#18
REVIEW
Aditya Shekhar, Peter Heeger, Chris Reutelingsperger, Eloisa Arbustini, Navneet Narula, Leonard Hofstra, Jeroen J Bax, Jagat Narula
Cell death is desirable in cancer cells and undesirable in organs with limited regenerative potential, like the heart. Cell death comes in many forms, but only apoptosis and to a lesser degree necrosis is currently relevant to the clinical imager. Noninvasive imaging of cell death is an attractive option to understand pathophysiology, track disease activity, and evaluate response to intervention. Apoptosis seems to be the most promising target for imaging cell death, because it could be reversible and might be modulated with interventions...
March 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29236892/joinville-stroke-biobank-study-protocol-and-first-year-s-results
#19
Leslie Ecker Ferreira, Paulo Henrique Condeixa de França, Vivian Nagel, Vanessa Venancio, Juliana Safanelli, Felipe Ibiapina Dos Reis, Luis Furtado, Rui Kleber Martins, Gustavo Weiss, Elder Oda, Iscia Lopes-Cendes, Octavio Pontes-Neto, Norberto Luiz Cabral
Aiming to contribute to studies that use detailed clinical and genomic information of biobanks, we present the initial results of the first Latin American Stroke Biobank. METHODS: Blood samples were collected from patients included in the Joinville Stroke Registry and four Brazilian cities. Demographic socio-economic data, cardiovascular risk factors, Causative Classification System for Ischemic Stroke, Trial of Org 10172 in Acute Stroke Treatment and National Institutes of Health scores, functional stroke status (modified Rankin) and brain images were recorded...
December 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29223438/-bringing-on-the-light-in-a-complex-clinical-scenario-optical-coherence-tomography-guided-discontinuation-of-antiplatelet-therapy-in-cancer-patients-with-coronary-artery-disease-protect-oct-registry
#20
Cezar A Iliescu, Mehmet Cilingiroglu, Dana E Giza, Oscar Rosales, Jake Lebeau, Israel Guerrero-Mantilla, Juan Lopez-Mattei, Juhee Song, Guillherme Silva, Pranav Loyalka, Andre R M Paixao, Syed Wamique Yusuf, Emerson Perin, Vernon H Anderson, Konstantinos Marmagkiolis
BACKGROUND: Cancer patients with recently placed drug-eluting stents (DESs) often require premature dual antiplatelet therapy (DAPT) discontinuation for cancer-related procedures. Optical coherence tomography (OCT) can identify risk factors for stent thrombosis such as stent malapposition, incomplete strut coverage and in-stent restenosis and may help guide discontinuation of DAPT. METHODS: We conducted a single-center prospective study in cancer patients with recently placed (1-12 months) DES who required premature DAPT discontinuation...
December 2017: American Heart Journal
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