Project description:Lipids in the reference material NIST SRM 1950 (50 uL) were extracted according to the Matyash protocol. The sample was analysed in 5 technical replicates by ESI(-)-HILIC-TIMS-MS with PASEF enabled with 100 ms.
Project description:Plasma proteomics has regained attention in recent years through advancements in mass spectrometry instrumentation and sample preparation, as well as new high-throughput affinity-based technologies. Here, we evaluate the analytical performance of the new Olink Reveal platform, a proximity extension assay based technology quantifying 1,034 proteins across biological pathways. Using spiked-in recombinant Interleukin-10 (IL-10) and vascular endothelial growth factor D (VEGF-D) in the NIST SRM 1950 plasma standard, we assessed the linearity, sensitivity, precision and accuracy of the Olink assay. The results demonstrated strong linear relationships (R² 0.922–0.953) for both IL-10 and VEGF-D across spiked-in concentrations, confirming the robust technical performance of Olink Reveal and underscoring its suitability for relative quantitation in large-scale studies. The resulting data contains no sensitive or personally identifiable information, and is available in public repositories, and therefore suitable for use in benchmarking and software development.
Project description:GNPS - NIST 1950 Serum SRM serial dilution processed with MZmine2 and OpenMS for Feature Based Molecular Networking. Files were obtained from the MSV000081364 (GNPS - NIST Standard Reference Material Human Serum - Column Comparability) https://massive.ucsd.edu/ProteoSAFe/dataset.jsp?task=010ce4f32b1d4c56aff9402d370d0c15 NIST SRM-1950 was processed using an 80% EtOH extraction protocol (found here 10.1021/ac402503m) and subsequently ran on a UHPLC using a Phenomenex Luna 1.6u C18 Polar Data coupled to Q Exactive Orbtirap (Thermo Fisher Scientific). Files were converted from mzXML to mzML with MSConvert.
Project description:<p>Here we present LipidCreator, a software that fully supports targeted lipidomics assay development. LipidCreator offers a comprehensive framework to compute MS/MS fragment masses for over 60 lipid classes. LipidCreator provides all functionalities needed to define fragments, manage stable isotope labeling, optimize collision energy and generate in silico spectral libraries. We validate LipidCreator assays computationally and analytically and prove that it is capable to generate large targeted experiments to analyze blood and to dissect lipid-signaling pathways such as in human platelets.</p><p><br></p><p>In MTBLS1375, to validate tissue-specific transitions which we generated with LipidCreator, we conducted quantitative lipidomics experiments monitoring 433 lipids in the plasma of 21 healthy Asian human subjects. For a subset of 50 individual lipid levels the concentrations were compared to a recently conducted ring trial monitoring the lipid content of a reference material obtained from a mixed American population (NIST SRM 1950). The rationale behind this was to see if the creation of a list including internal standard and endogenous lipids lead to similar quantitative results as the ring trial experiment.</p><p><br></p><p>Studies linked to this manuscript include;</p><p><a href='https://www.ebi.ac.uk/metabolights/editor/study/MTBLS1333' rel='noopener noreferrer' target='_blank'>MTBLS1333; LipidCreator: Collision Energy Optimization and Fragment Intensity Prediction for Lipid Mediators - Thermo QExactive HF</a></p><p><a href='https://www.ebi.ac.uk/metabolights/editor/study/MTBLS1334' rel='noopener noreferrer' target='_blank'>MTBLS1334; LipidCreator: Collision Energy Optimization and Fragment Intensity Prediction for Lipid Mediators - Agilent QTof</a></p><p><a href='https://www.ebi.ac.uk/metabolights/editor/study/MTBLS1369' rel='noopener noreferrer' target='_blank'>MTBLS1369; LipidCreator: Platelet isolation and stimulation - Targeted Phospho- and Glycerolipid Profiling</a></p><p><a href='https://www.ebi.ac.uk/metabolights/editor/study/MTBLS1375' rel='noopener noreferrer' target='_blank'>MTBLS1375; LipidCreator: Targeted lipidomics analysis of Human Plasma samples and comparison with NIST SRM 1950 standard</a></p><p><a href='https://www.ebi.ac.uk/metabolights/editor/study/MTBLS1376' rel='noopener noreferrer' target='_blank'>MTBLS1376; LipidCreator: Targeted lipidomics analysis of S. cerevisiae to determine true and false identification</a></p><p><a href='https://www.ebi.ac.uk/metabolights/editor/study/MTBLS1381' rel='noopener noreferrer' target='_blank'>MTBLS1381; LipidCreator: Platelet isolation and stimulation - Targeted Lipid Mediator Profiling</a></p><p><a href='https://www.ebi.ac.uk/metabolights/editor/study/MTBLS1382' rel='noopener noreferrer' target='_blank'>MTBLS1382; LipidCreator: Platelet isolation and stimulation - DIA Lipid Mediator Validation</a></p>
Project description:Six biological samples including the cell, feces, plasma (NIST SRM 1950), tissue, urine, and their pooled sample were analyzed by UPLC-HRMS.
Project description:Lipids in the reference material NIST SRM 1950 (50 uL) were extracted according to the Matyash protocol. The sample was analysed in 5 technical replicates by ESI(-)-HILIC-TIMS-MS with PASEF enabled with 100 ms.
Project description:Air pollution, particularly environmental tobacco smoke, poses significant health risks, especially to pregnant women and their infants. This study explores the difference in response to cigarette smoke (CS) exposure between pregnant and non-pregnant mice by examining lung transcriptomic profiles, neutrophil numbers, key mediators of neutrophil chemotaxis, and gut microbiota composition. Pregnant and non-pregnant mice were exposed to either air or CS. Bronchoalveolar lavage fluid (BALF) was analyzed for inflammatory cells and mediators. RNA sequencing was conducted on lung tissue to identify transcriptomic alterations.
Project description:This dataset contains lipidomics data of NIST SRM 1950 plasma acquired by the three-fold approach: capillary LC/nanoelectrospray for enhanced ionization, QLT for higher sensitivity, and maximized parallelization of mass analyzers for efficient acquisition.
Project description:Raw .d files containing LC-DTIMS-CID-MS for the analysis of lipidomic changes in mouse lung tissue following exposure to various simulations of wildfire smoke.