Jonathan Paraskos
AstraZeneca
6 Papers
28 Citations
Jonathan Paraskos is an academic researcher from AstraZeneca. The author has contributed to research in topics: Medicine & Gene. The author has an hindex of 4, co-authored 5 publications.
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Papers
AZD3293 A novel BACE1 inhibitor: safety, tolerability, and effects on plasma and CSF Aβ peptides following single- and multiple-dose administration
Robert Alexander,S. Budd,Muir Russell,Alan R. Kugler,Gvido Cebers,Naidong Ye,Tina Olsson,D. Burdette,Justine Maltby,Jonathan Paraskos,Karen Elsby,David Han,Ronald Goldwater,Larry Ereshefsky +13 more
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INEXAS: A Phase 2 Randomized Trial of On-demand Inhaled Interferon Beta-1a in Severe Asthmatics.
Christopher McCrae,Christopher McCrae,Marita Olsson,Per Gustafson,Anna Malmgren,Malin Aurell,Malin Fagerås,Carla A. Da Silva,Anders Cavallin,Jonathan Paraskos,Karin Karlsson,Cecilia Wingren,Phillip Monk,Richard Marsden,Tim Harrison +14 more
TL;DR: It is hypothesized that inhalation of the anti‐viral cytokine, interferon (IFN)‐β, during URTI, could prevent these exacerbations of asthma exacerbations.
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Population pharmacokinetic and pharmacodynamic analysis of plasma Aβ40 and Aβ42 following single oral doses of the BACE1 inhibitor AZD3839 to healthy volunteers.
Angelica Quartino,Gunilla Huledal,Erik Sparve,Erik Sparve,Maria Lüttgen,Tjerk Bueters,Pär Karlsson,Tina Olsson,Jonathan Paraskos,Justine Maltby,Kristina Claeson-Bohnstedt,Chi-Ming Lee,Robert Alexander,Johanna Fälting,Björn Paulsson +14 more
TL;DR: Safety, pharmacokinetics and pharmacodynamics that is reduction of the plasma biomarkers Aβ40 and Aβ42, of the BACE1 inhibitor AZD3839 were evaluated.
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Point-of-care microvolume cytometer measures platelet counts with high accuracy from capillary blood.
William M Dickerson,Rebecca Yu,Helena U. Westergren,Jonathan Paraskos,Philipp Schatz,Anna Tigerström,Anna Ekman,Jose Miguel Sanchez,Jamie Cheng,Lillian Li,Eugene Y Chan +10 more
Abstract: Background Point-of-care (PoC) testing of platelet count (PLT) provides real-time data for rapid decision making. The goal of this study is to evaluate the accuracy and precision of platelet counting using a new microvolume (8 μL), absolute counting, 1.5 kg cytometry-based blood analyzer, the rHEALTH ONE (rHEALTH) in comparison with the International Society of Laboratory Hematology (ISLH) platelet method, which uses a cytometer and an impedance analyzer. Methods Inclusion eligibility were healthy adults (M/F) ages 18-80 for donation of fingerprick and venous blood samples. Samples were from a random N = 31 volunteers from a single U.S. site. Samples were serially diluted to test thrombocytopenic ranges. Interfering substances and conditions were tested, including RBC fragments, platelet fragments, cholesterol, triglycerides, lipids, anti-platelet antibodies, and temperature. Results The concordance between the rHEALTH and ISLH methods had a slope = 1.030 and R2 = 0.9684. The rHEALTH method showed a correlation between capillary and venous blood samples (slope = 0.9514 and R2 = 0.9684). Certain interferents changed platelet recovery: RBC fragments and anti-platelet antibodies with the ISLH method; platelet fragments and anti-platelet antibodies on the rHEALTH; and RBC fragments, platelets fragments, triglycerides and LDL on the clinical impedance analyzer. The rHEALTH's precision ranged from 3.1-8.0%, and the ISLH from 1.0-10.5%. Conclusions The rHEALTH method provides similar results with the reference method and good correlation between adult capillary and venous blood samples. This demonstrates the ability of the rHEALTH to provide point-of-care assessment of normal and thrombocytopenic platelet counts from fingerprick blood with high precision and limited interferences.
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DOP06 Deep characterization of IL-23 pathway in different gut segments and associated plasma biomarkers in inflammatory bowel disease
J. Cairns,Susan J. Monkley,S. Tian,Bastian R. Angermann,Z. Li,Lisa Öberg,Daniel Muthas,Claudia Cabrera,Eleni Rapsomaniki,D. Fernández Llaneza,Mariann Olsson,Jonathan Paraskos,G. Ellison,E. Khan,E. A. Duncan,Jessica Neisen,Ulf Gehrmann,Chris Chamberlain +17 more
TL;DR: The role of Interleukin 23 (IL-23) in the pathogenesis of both Crohn's disease (CD) and ulcerative colitis (UC) is well documented as discussed by the authors .