Search Results - "Olah, Timothy"
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Protein Biomarker Quantification by Immunoaffinity Liquid Chromatography-Tandem Mass Spectrometry: Current State and Future Vision
Published in Clinical chemistry (Baltimore, Md.) (01-02-2020)“…Immunoaffinity-mass spectrometry (IA-MS) is an emerging analytical genre with several advantages for profiling and determination of protein biomarkers. Because…”
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Ultrahigh-Throughput and Chromatography-Free Bioanalysis of Polar Analytes with Acoustic Ejection Mass Spectrometry
Published in Analytical chemistry (Washington) (06-10-2020)“…Bioanalysis of polar analytes using liquid chromatography–tandem mass spectrometry (LC-MS/MS) remains a significant challenge because of their poor…”
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LC/MS/MS-based quantitation of pig and human S100A1 protein in cardiac tissues: Application to gene therapy
Published in Analytical biochemistry (01-08-2020)“…The S100A1 protein is a target of interest for the treatment of heart failure as it has been previously reported to be depleted in failing cardiomyocytes. A…”
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Immunoaffinity enrichment LC–MS/MS quantitation of CDH17 in tissues
Published in Bioanalysis (01-10-2020)“…There is little information in the literature regarding assays for measuring CDH17 in tissues. Numerous studies indicate overexpression of CDH17 in a variety…”
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Quantification of Linrodostat and its metabolites: Overcoming bioanalytical challenges in support of a discovery Indoleamine 2,3 dioxygenase program
Published in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (01-09-2022)“…•Overcoming Bioanalytical Challenges in Support of a Discovery IDO Program.•BMS-986205 (Linrodostat) is a small molecule inhibitor of Indoleamine 2, 3…”
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A peptide immunoaffinity LC–MS/MS strategy for quantifying the GPCR protein, S1PR1 in human colon biopsies
Published in Bioanalysis (01-09-2020)“…S1PR1, a G protein-coupled receptor (GPCR) protein, is a therapeutic target for treatment of autoimmune diseases. As a potential biomarker for drug effect and…”
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An integrated Qual/Quan strategy for ganglioside lipidomics using high‐resolution mass spectrometry and Skyline software
Published in Rapid communications in mass spectrometry (15-04-2021)“…Rationale Gangliosides (GS) are attractive targets in biomarker discovery because of their physiological significance in numerous human diseases including…”
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A strategy for liquid chromatography/tandem mass spectrometry based quantitation of pegylated protein drugs in plasma using plasma protein precipitation with water-miscible organic solvents and subsequent trypsin digestion to generate surrogate peptides for detection
Published in Rapid communications in mass spectrometry (30-01-2011)“…Recently, we have developed liquid chromatography/tandem mass spectrometry (LC/MS/MS)‐based methods for the quantitation of pegylated therapeutic proteins in…”
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Quantification of surrogate monoclonal antibodies in mouse serum using LC–MS/MS
Published in Bioanalysis (01-02-2021)“…Surrogate monoclonal antibodies (mAbs) used in preclinical studies can be challenging to quantify due to lack of suitable immunoaffinity reagents or…”
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Analytical considerations for quantitative LC-MS strategies for measuring antibody drug-target engagement in tissues
Published in Bioanalysis (01-12-2017)Get full text
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Immunoaffinity LC-MS/MS for quantitative determination of a free and total protein target as a target engagement biomarker
Published in Bioanalysis (01-10-2017)“…IP-10 is a protein target for the treatment of Crohn's disease. Inhibition of IP-10 by anti-IP-10 mAbs neutralizes its various biological activities. The…”
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A universal surrogate peptide to enable LC-MS/MS bioanalysis of a diversity of human monoclonal antibody and human Fc-fusion protein drug candidates in pre-clinical animal studies
Published in Biomedical chromatography (01-08-2012)“…ABSTRACT For the development of human antibody Fc (fraction crystallizable) region‐containing therapeutic protein candidates, which can be either monoclonal…”
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2020 White Paper on Recent Issues in Bioanalysis: BMV of Hybrid Assays, Acoustic MS, HRMS, Data Integrity, Endogenous Compounds, Microsampling and Microbiome
Published in Bioanalysis (01-02-2021)“…The 14 edition of the Workshop on Recent Issues in Bioanalysis (14 WRIB) was held virtually on June 15–29, 2020 with an attendance of over 1000 representatives…”
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Mechanistic investigation of ionization suppression in electrospray ionization
Published in Journal of the American Society for Mass Spectrometry (01-11-2000)“…We show results from experiments designed to determine the relative importance of gas phase processes and solution phase processes into ionization suppression…”
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Antibody-drug conjugate bioanalysis using LB-LC-MS/MS hybrid assays: strategies, methodology and correlation to ligand-binding assays
Published in Bioanalysis (01-07-2016)“…Antibody-drug conjugates (ADCs) are complex drug constructs with multiple species in the heterogeneous mixture that contribute to their efficacy and toxicity…”
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LC-MS/MS multiplexed assay for the quantitation of a therapeutic protein BMS-986089 and the target protein Myostatin
Published in Bioanalysis (01-02-2016)“…Therapeutic protein discovery study highlights the need for the development of quantitative bioanalytical methods for determining the levels of both the…”
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The utility of stable isotope labeled (SIL) analogues in the bioanalysis of endogenous compounds by LC-MS applied to the study of bile acids in a metabolomics assay
Published in Analytical biochemistry (15-06-2016)“…The growing field of biomarker bioanalysis by liquid chromatography mass spectrometry (LC–MS) is challenged with the selection of suitable matrices to…”
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Increasing high-throughput Discovery bioanalysis using automated selected reaction monitoring compound optimization, ultra-high-pressure liquid chromatography, and single-step sample preparation workflows
Published in Rapid communications in mass spectrometry (15-11-2009)“…QuickQuan is an integrated software package for Thermo Scientific triple quadrupole mass spectrometers that allows users to automate routine operations ranging…”
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Bioanalytical strategies for developing highly sensitive liquid chromatography/tandem mass spectrometry based methods for the peptide GLP-1 agonists in support of discovery PK/PD studies
Published in Rapid communications in mass spectrometry (30-11-2011)“…Highly sensitive liquid chromatography/tandem mass spectrometry (LC/MS/MS)‐based methods have been developed and implemented for the quantitative determination…”
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The integration of ligand binding and LC-MS-based assays into bioanalytical strategies for protein analysis
Published in Bioanalysis (01-01-2014)“…Both LBAs and LC-MS-based assays are reviewed and summarized for applications in quantitative protein analysis. A strategy for platform selection is proposed…”
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