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Ferumoxytol

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https://www.readbyqxmd.com/read/28642288/ferumoxytol-enhanced-magnetic-resonance-imaging-assessing-inflammation-after-myocardial-infarction
#1
Colin G Stirrat, Shirjel R Alam, Thomas J MacGillivray, Calum D Gray, Marc R Dweck, Jennifer Raftis, William Sa Jenkins, William A Wallace, Renzo Pessotto, Kelvin Hh Lim, Saeed Mirsadraee, Peter A Henriksen, Scott Ik Semple, David E Newby
OBJECTIVES: Macrophages play a central role in the cellular inflammatory response to myocardial infarction (MI) and predict subsequent clinical outcomes. We aimed to assess temporal changes in cellular inflammation and tissue oedema in patients with acute MI using ultrasmallsuperparamagnetic particles of iron oxide (USPIO)-enhanced MRI. METHODS: Thirty-one patients were recruited following acute MI and followed up for 3 months with repeated T2 and USPIO-enhanced T2*-mapping MRI...
June 22, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28622742/intravenous-ferumoxytol-in-pediatric-patients-with-iron-deficiency-anemia
#2
Nabil Hassan, Brian Boville, Diann Reischmann, Akunne Ndika, David Sterken, Karen Kovey
BACKGROUND: Iron deficiency anemia (IDA) is common in children. Limited data exist on the efficacy and safety of ferumoxytol in children. OBJECTIVE: To assess the efficacy of 10 mg/kg dose given over 15-60 minutes in correcting IDA and report any adverse drug reactions (ADRs). METHODS: We conducted a retrospective review of all patients who received ferumoxytol infusions for the management of IDA by the Pediatric Blood Management Program between October 2010 and March 2015...
July 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28570032/free-breathing-pediatric-chest-mri-performance-of-self-navigated-golden-angle-ordered-conical-ultrashort-echo-time-acquisition
#3
Evan J Zucker, Joseph Y Cheng, Anshul Haldipur, Michael Carl, Shreyas S Vasanawala
PURPOSE: To assess the feasibility and performance of conical k-space trajectory free-breathing ultrashort echo time (UTE) chest magnetic resonance imaging (MRI) versus four-dimensional (4D) flow and effects of 50% data subsampling and soft-gated motion correction. MATERIALS AND METHODS: Thirty-two consecutive children who underwent both 4D flow and UTE ferumoxytol-enhanced chest MR (mean age: 5.4 years, range: 6 days to 15.7 years) in one 3T exam were recruited...
June 1, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28500233/nanoformulation-of-olaparib-amplifies-parp-inhibition-and-sensitizes-pten-tp53-deficient-prostate-cancer-to-radiation
#4
Anne L van de Ven, Shifalika Tangutoori, Paige Baldwin, Ju Qiao, Codi Gharagouzloo, Nina Seitzer, John G Clohessy, G Mike Makrigiorgos, Robert Cormack, Pier Paolo Pandolfi, Srinivas Sridhar
The use of PARP inhibitors in combination with radiation therapy is a promising strategy to locally enhance DNA-damage in tumors. Here we show that radiation-resistant cells and tumors derived from a Pten/Trp53-deficient mouse model of advanced prostate cancer are rendered radiation-sensitive following treatment with NanoOlaparib, a lipid-based injectable nanoformulation of Olaparib. This enhancement in radiosensitivity is accompanied by radiation dose-dependent changes in γ-H2AX expression and is specific to NanoOlaparib alone...
May 12, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28495944/what-does-the-boxed-warning-tell-us-safe-practice-of-using-ferumoxytol-as-an-mri-contrast-agent
#5
C G Varallyay, G B Toth, R Fu, J P Netto, J Firkins, P Ambady, E A Neuwelt
BACKGROUND AND PURPOSE: Despite the label change and the FDA's boxed warning added to the Feraheme (ferumoxytol) label in March 2015, radiologists have shown increasing interest in using ferumoxytol as an MR imaging contrast agent as a supplement or alternative to gadolinium. The goals of this study were to provide information regarding ferumoxytol safety as an imaging agent in a single center and to assess how the Feraheme label change may affect this potential, currently off-label indication...
May 11, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28463893/imaging-pathobiology-of-carotid-atherosclerosis-with-ultrasmall-superparamagnetic-particles-of-iron-oxide-an-update
#6
Umar Sadat, Ammara Usman, Jonathan H Gillard
PURPOSE OF REVIEW: To provide brief overview of the developments regarding use of ultrasmall superparamagnetic particles of iron oxide in imaging pathobiology of carotid atherosclerosis. RECENT FINDINGS: MRI is a promising technique capable of providing morphological and functional information about atheromatous plaques. MRI using iron oxide particles, called ultrasmall superparamagnetic iron oxide (USPIO) particles, allows detection of macrophages in atherosclerotic tissue...
July 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28448604/non-invasive-imaging-assessment-of-the-biodistribution-of-gsk2849330-an-adcc-and-cdc-optimized-anti-her3-mab-and-its-role-in-tumor-macrophage-recruitment-in-human-tumor-bearing-mice
#7
Hasan Alsaid, Tinamarie Skedzielewski, Mary V Rambo, Kristen Hunsinger, Bao Hoang, William Fieles, Edward R Long, James Tunstead, Danielle J Vugts, Matthew Cleveland, Neil Clarke, Christopher Matheny, Beat M Jucker
The purpose of this work was to use various molecular imaging techniques to non-invasively assess GSK2849330 (anti HER3 ADCC and CDC enhanced 'AccretaMab' monoclonal antibody) pharmacokinetics and pharmacodynamics in human xenograft tumor-bearing mice. Immuno-PET biodistribution imaging of radiolabeled 89Zr-GSK2849330 was assessed in mice with HER3 negative (MIA-PaCa-2) and positive (CHL-1) human xenograft tumors. Dose dependency of GSK2849330 disposition was assessed using varying doses of unlabeled GSK2849330 co-injected with 89Zr-GSK2849330...
2017: PloS One
https://www.readbyqxmd.com/read/28434822/current-and-potential-imaging-applications-of-ferumoxytol-for-magnetic-resonance-imaging
#8
REVIEW
Gerda B Toth, Csanad G Varallyay, Andrea Horvath, Mustafa R Bashir, Peter L Choyke, Heike E Daldrup-Link, Edit Dosa, John Paul Finn, Seymur Gahramanov, Mukesh Harisinghani, Iain Macdougall, Alexander Neuwelt, Shreyas S Vasanawala, Prakash Ambady, Ramon Barajas, Justin S Cetas, Jeremy Ciporen, Thomas J DeLoughery, Nancy D Doolittle, Rongwei Fu, John Grinstead, Alexander R Guimaraes, Bronwyn E Hamilton, Xin Li, Heather L McConnell, Leslie L Muldoon, Gary Nesbit, Joao P Netto, David Petterson, William D Rooney, Daniel Schwartz, Laszlo Szidonya, Edward A Neuwelt
Contrast-enhanced magnetic resonance imaging is a commonly used diagnostic tool. Compared with standard gadolinium-based contrast agents, ferumoxytol (Feraheme, AMAG Pharmaceuticals, Waltham, MA), used as an alternative contrast medium, is feasible in patients with impaired renal function. Other attractive imaging features of i.v. ferumoxytol include a prolonged blood pool phase and delayed intracellular uptake. With its unique pharmacologic, metabolic, and imaging properties, ferumoxytol may play a crucial role in future magnetic resonance imaging of the central nervous system, various organs outside the central nervous system, and the cardiovascular system...
April 14, 2017: Kidney International
https://www.readbyqxmd.com/read/28411307/ferumoxytol-is-not-retained-in-kidney-allografts-in-patients-undergoing-acute-rejection
#9
Maryam Aghighi, Laura Pisani, Ashok J Theruvath, Anne M Muehe, Jessica Donig, Ramsha Khan, Samantha J Holdsworth, Neeraja Kambham, Waldo Concepcion, Paul C Grimm, Heike E Daldrup-Link
PURPOSE: To evaluate whether ultrasmall superparamagnetic iron oxide nanoparticle (USPIO)-enhanced magnetic resonance imaging (MRI) can detect allograft rejection in pediatric kidney transplant patients. PROCEDURES: The USPIO ferumoxytol has a long blood half-life and is phagocytosed by macrophages. In an IRB-approved single-center prospective clinical trial, 26 pediatric patients and adolescents (age 10-26 years) with acute allograft rejection (n = 5), non-rejecting allografts (n = 13), and normal native kidneys (n = 8) underwent multi-echo T2* fast spoiled gradient-echo (FSPGR) MRI after intravenous injection (p...
April 14, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28372549/the-ferumoxytol-for-anemia-of-ckd-trial-fact-a-randomized-controlled-trial-of-repeated-doses-of-ferumoxytol-or-iron-sucrose-in-patients-on-hemodialysis-background-and-rationale
#10
Iain C Macdougall, Naomi V Dahl, Kristine Bernard, Zhu Li, Alka Batyky, William E Strauss
BACKGROUND: Iron deficiency anemia (IDA) is a common manifestation of chronic kidney disease (CKD), affecting most patients on hemodialysis and imposing a substantial clinical burden. Treatment with iron supplementation increases hemoglobin levels and can reduce the severity of anemia in patients with CKD. While correcting anemia in these patients is an important therapeutic goal, there is a lack of long-term trials directly comparing intravenous iron therapies in patients with CKD receiving hemodialysis...
April 3, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28371203/the-available-intravenous-iron-formulations-history-efficacy-and-toxicology
#11
REVIEW
Michael Auerbach, Iain Macdougall
A number of intravenous iron formulations have been developed over the past 65 years which rely on dextran or other compounds to prevent uncontrolled release of free iron to the circulation. High molecular weight dextran was associated with a number of serious adverse reactions and was removed from markets worldwide in 2009. The preponderance of published evidence suggests that the formulations of parenteral iron currently available in the United States, including low molecular weight iron dextran, are all safe and effective and there are no major, clinically important differences among them in terms of either efficacy or safety...
June 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28366171/4d-music-cmr-value-based-imaging-of-neonates-and-infants-with-congenital-heart-disease
#12
Kim-Lien Nguyen, Fei Han, Ziwu Zhou, Daniel Z Brunengraber, Ihab Ayad, Daniel S Levi, Gary M Satou, Brian L Reemtsen, Peng Hu, J Paul Finn
BACKGROUND: 4D Multiphase Steady State Imaging with Contrast (MUSIC) acquires high-resolution volumetric images of the beating heart during uninterrupted ventilation. We aim to evaluate the diagnostic performance and clinical impact of 4D MUSIC in a cohort of neonates and infants with congenital heart disease (CHD). METHODS: Forty consecutive neonates and infants with CHD (age range 2 days to 2 years, weight 1 to 13 kg) underwent 3.0 T CMR with ferumoxytol enhancement (FE) at a single institution...
April 3, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28356290/novel-contrast-mixture-improves-bladder-wall-contrast-for-visualizing-bladder-injury
#13
Pradeep Tyagi, Joseph J Janicki, T Kevin Hitchens, Lesley M Foley, Mahendra Kashyap, Naoki Yoshimura, Jonathan Kaufman
PURPOSE: Here, we tested whether combined contrast-enhanced magnetic resonance imaging (CCE-MRI), using a mixture Gadolinium and iron-oxide based contrast agents, can segment the bladder wall from the bladder lumen. CCE-MRI relies on the differences in particle size and contrast mechanisms of two agents for improved image contrast. METHODS: Under isoflurane anesthesia, T1-weighted imaging of adult female Sprague-Dawley rat bladder was performed using standard turbo spin echo sequences at 7 Tesla, before and after transurethral instillation of 0...
March 29, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28275562/a-comprehensive-literatures-update-of-clinical-researches-of-superparamagnetic-resonance-iron-oxide-nanoparticles-for-magnetic-resonance-imaging
#14
REVIEW
Yì Xiáng J Wáng, Jean-Marc Idée
This paper aims to update the clinical researches using superparamagnetic iron oxide (SPIO) nanoparticles as magnetic resonance imaging (MRI) contrast agent published during the past five years. PubMed database was used for literature search, and the search terms were (SPIO OR superparamagnetic iron oxide OR Resovist OR Ferumoxytol OR Ferumoxtran-10) AND (MRI OR magnetic resonance imaging). The literature search results show clinical research on SPIO remains robust, particularly fuelled by the approval of ferumoxytol for intravenously administration...
February 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28214127/functionalized-superparamagnetic-iron-oxide-nanoparticles-provide-highly-efficient-iron-labeling-in-macrophages-for-magnetic-resonance-based-detection-in-vivo
#15
Jack Sharkey, Philip J Starkey Lewis, Michael Barrow, Salamah M Alwahsh, June Noble, Eilidh Livingstone, Ross J Lennen, Maurits A Jansen, Jaime Garcia Carrion, Neill Liptrott, Shareen Forbes, Dave J Adams, Amy E Chadwick, Stuart J Forbes, Patricia Murray, Matthew J Rosseinsky, Christopher E Goldring, B Kevin Park
BACKGROUND AIMS: Tracking cells during regenerative cytotherapy is crucial for monitoring their safety and efficacy. Macrophages are an emerging cell-based regenerative therapy for liver disease and can be readily labeled for medical imaging. A reliable, clinically applicable cell-tracking agent would be a powerful tool to study cell biodistribution. METHODS: Using a recently described chemical design, we set out to functionalize, optimize and characterize a new set of superparamagnetic iron oxide nanoparticles (SPIONs) to efficiently label macrophages for magnetic resonance imaging-based cell tracking in vivo...
April 2017: Cytotherapy
https://www.readbyqxmd.com/read/28170192/ferumoxytol-labeling-of-human-neural-progenitor-cells-for-diagnostic-cellular-tracking-in-the-porcine-spinal-cord-with-magnetic-resonance-imaging
#16
Jason J Lamanna, Juanmarco Gutierrez, Lindsey N Urquia, C Victor Hurtig, Elman Amador, Natalia Grin, Clive N Svendsen, Thais Federici, John N Oshinski, Nicholas M Boulis
We report on the diagnostic capability of magnetic resonance imaging (MRI)-based tracking of ferumoxytol-labeled human neural progenitor cells (hNPCs) transplanted into the porcine spinal cord. hNPCs prelabeled with two doses of ferumoxytol nanoparticles (hNPC-F(Low) and hNPC-F(High) ) were injected into the ventral horn of the spinal cord in healthy minipigs. Ferumoxytol-labeled grafts were tracked in vivo up to 105 days after transplantation with MRI. Injection accuracy was assessed in vivo at day 14 and was predictive of "on" or "off" target cell graft location assessed by histology...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28160356/ferumoxytol-vs-gadolinium-agents-for-contrast-enhanced-mri-thoughts-on-evolving-indications-risks-and-benefits
#17
J Paul Finn, Kim-Lien Nguyen, Peng Hu
No abstract text is available yet for this article.
February 3, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28159813/correlation-between-ferumoxytol-uptake-in-tumor-lesions-by-mri-and-response-to-nanoliposomal-irinotecan-in-patients-with-advanced-solid-tumors-a-pilot-study
#18
Ramesh K Ramanathan, Ronald Korn, Natarajan Raghunand, Jasgit C Sachdev, Ronald G Newbold, Gayle Jameson, Gerald J Fetterly, Joshua Prey, Stephan G Klinz, Jaeyeon Kim, Jason Cain, Bart S Hendriks, Daryl C Drummond, Eliel Bayever, Jonathan B Fitzgerald
PURPOSE: Determine if deposition characteristics of ferumoxytol (FMX) iron nanoparticles in tumors, identified by quantitative MRI, may predict tumor lesion response to nanoliposomal irinotecan (nal-IRI). EXPERIMENTAL DESIGN: Eligible patients with previously treated solid tumors had FMX-MRI scans before and following (1, 24, and 72 hours) FMX injection. After MRI acquisition, R2* signal was used to calculate FMX levels in plasma, reference tissue and tumor lesions by comparison with a phantom-based standard curve...
February 3, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28150359/potential-role-of-tracing-stem-cell-transplantation-and-effects-on-the-immune-cell-function-of-ferumoxytol-combining-with-heparin-and-protamine-in-vivo-in-vitro
#19
Jingyuan Zhao, Xin Guan, Yang Liu, Hua Piao, Rutao Liu, Xiang Zhou, Bo Sun, Yue Du, Jing Liu
Cell labeling and tracing have played an increasingly important role in the field of stem cell transplantation. Nanocomplexes combining three Food and Drug Administration (FDA)-approved drugs: heparin (H), protamine (P), and ferumoxytol (F) (HPF nanocomplexes) display high labeling efficiency in human adipose tissue-derived stem cells (hADSCs), but their biological safety has not been determined. In this study, we tested the labeling efficiency of HPF in hADSCs through in vitro cytotoxicity studies and in vivo murine preclinical studies using HPF-labeled hADSCs...
April 2017: Cell Biology International
https://www.readbyqxmd.com/read/28135334/relative-incidence-of-acute-adverse-events-with-ferumoxytol-compared-to-other-intravenous-iron-compounds-a-matched-cohort-study
#20
James B Wetmore, Eric D Weinhandl, Jincheng Zhou, David T Gilbertson
Concerns persist about adverse reactions to intravenous (IV) iron. We aimed to determine the relative safety of ferumoxytol compared to other IV iron compounds. This retrospective cohort study with propensity-score matching for patients and drug doses used the Medicare 20% random sample to identify patients (1) without chronic kidney disease (non-CKD) and (2) with non-dialysis-dependent chronic kidney disease (NDD-CKD) who received a first dose of IV iron in 2010-2012. Exposures were ferumoxytol, iron sucrose, sodium ferric gluconate, or iron dextran...
2017: PloS One
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