Dataset Information

Discovery of urinary biomarkers to discriminate between exogenous and semi-endogenous thiouracil in cattle (Cow samples)

ABSTRACT: In the European Union, the use of thyreostats for animal fattening purposes has been banned because of their carcinogenic and teratogenic effects, whereby any residues in derived food products may hold a risk for human health. In this regard, potential abuse is monitored by targeted analysis of thyreostats with the application of a zero-tolerance policy. However, such a strategy is no longer adequate because of the semi-endogenous origin of some thyreostats, including thiouracil (TU). Additionally, the use of recommended TU concentration levels (10 or 30 µg/l) is also not fully conclusive. Therefore, this study aimed at defining urinary metabolite markers by which the true origin of detected TU could be ascertained. To this end, an in vivo study was carried out in which 11 calves were subjected to either a control treatment, a rapeseed-enriched diet (known to induce semi-endogenous formation) or a TU treatment. Urine samples (n = 165) were assessed through metabolic fingerprinting, employing ultra-high performance liquid-chromatography and Q-Exactive Orbitrap mass spectrometry. Urinary fingerprints were interpreted by multivariate data-analysis.

The targeted Calf samples assay for this study can be found in the MetaboLights study MTBLS554.

Linked Studies: MTBLS554

INSTRUMENT(S): UPLC-LTQ-MS

PROVIDER: MTBLS561 | MetaboLights | 2018-02-22

REPOSITORIES: MetaboLights

ACCESS DATA

Dataset's files

Source:

Items per page:

1 - 5 of 168

Publications

Discovery of urinary biomarkers to discriminate between exogenous and semi-endogenous thiouracil in cattle: A parallel-like randomized design.

Van Meulebroek Lieven L Wauters Jella J Pomian Beata B Vanden Bussche Julie J Delahaut Philippe P Fichant Eric E Vanhaecke Lynn L

PloS one 20180412 4

In the European Union, the use of thyreostats for animal fattening purposes has been banned and monitoring plans have been established to detect potential abuse. However, this is not always straightforward as thyreostats such as thiouracil may also have a semi-endogenous origin. Therefore, this study aimed at defining urinary metabolites, which may aid in defining the origin of detected thiouracil. Hereto, a parallel-like randomized in vivo study was conducted in which calves (n = 8) and cows (n ...[more]

PMID: 29649241

Similar Datasets

Project description:Lipid Data Analyzer (LDA; http://genome.tugraz.at/lda2) provides automated and reliable annotation of lipid species and their molecular structures in high-throughput data from chromatography-coupled tandem mass spectrometry using embedded rule sets. Using various low- and high-resolution mass spectrometry instruments with several collision energies, the method's platform independence is proved. The software's reliability, flexibility, and ability to identify novel lipid molecular species may now render current state-of-the-art lipid libraries obsolete. LDA identified several novel lipid molecular species and novel regio-isomeric species; we consider a lipid species as “novel” if it is neither present in LIPID MAPS Structure Database, ChEBI, CyberLipid, HMDB, nor YMDB. Where evidence relies on fragments of very small intensity, high resolution HCD mode was used for final characterization. These data are presented here (CID mode data can be found in MTBLS397 - both biological experiments for Orbitrap Velos CID). Moreover, we present in this study data showing the LDA's ability to distinguish regio-isomeric standards under certain chromatographic conditions. Control experiment 1 assays for this study can be found in the MetaboLights study MTBLS394. Control experiment 2 assays for this study can be found in the MetaboLights study MTBLS391.Control experiment 3 assays for this study can be found in the MetaboLights study MTBLS398.Murine liver lipidome experiment assays for this study can be found in the MetaboLights study MTBLS396.LipidBlast benchmarking assays for this study can be found in the MetaboLights study MTBLS397. Linked Studies:<a href='https://www.ebi.ac.uk/metabolights/MTBLS391' target='_blank'>MTBLS391</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS394' target='_blank'>MTBLS394</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS396' target='_blank'>MTBLS396</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS397' target='_blank'>MTBLS397</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS398' target='_blank'>MTBLS398</a>

Project description:Lipid Data Analyzer (LDA; http://genome.tugraz.at/lda2) provides automated and reliable annotation of lipid species and their molecular structures in high-throughput data from chromatography-coupled tandem mass spectrometry using embedded rule sets. Using various low- and high-resolution mass spectrometry instruments with several collision energies, the method's platform independence is proved. The software's reliability, flexibility, and ability to identify novel lipid molecular species may now render current state-of-the-art lipid libraries obsolete. In lipidomics, overlaps of species from isobars from other subclasses/adducts frequently occur. In this experiment, isobars from PC and PE, and from LPC and LPE are mixed in one sample. The LC-method was made worse, so that these species generated overlapping peaks. In this experiment, the LDA's propensity to detect and seperate such species was tested. Control experiment 1 assays for this study can be found in the MetaboLights study MTBLS394. Control experiment 3 assays for this study can be found in the MetaboLights study MTBLS398. Murine liver lipidome experiment assays for this study can be found in the MetaboLights study MTBLS396. LipidBlast benchmarking assays for this study can be found in the MetaboLights study MTBLS397. HCD characterization and regioisomer detection assays for this study can be found in the MetaboLights study MTBLS462. Linked Studies: <a href='https://www.ebi.ac.uk/metabolights/MTBLS394' target='_blank'>MTBLS394</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS396' target='_blank'>MTBLS396</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS397' target='_blank'>MTBLS397</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS398' target='_blank'>MTBLS398</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS462' target='_blank'>MTBLS462</a>

Project description:Lipid Data Analyzer (LDA; http://genome.tugraz.at/lda2) provides automated and reliable annotation of lipid species and their molecular structures in high-throughput data from chromatography-coupled tandem mass spectrometry using embedded rule sets. Using various low- and high-resolution mass spectrometry instruments with several collision energies, the method's platform independence is proved. The software's reliability, flexibility, and ability to identify novel lipid molecular species may now render current state-of-the-art lipid libraries obsolete. The biological data was used to fine-tune the developed decision rule sets. In particular, the high numbers of isobaric species and structural isomers contained in these samples helped in the detection of decisive differences for many isobaric subclasses/adducts. Control experiment 1 assays for this study can be found in the MetaboLights study MTBLS394. Control experiment 2 assays for this study can be found in the MetaboLights study MTBLS391. Control experiment 3 assays for this study can be found in the MetaboLights study MTBLS398. LipidBlast benchmarking assays for this study can be found in the MetaboLights study MTBLS397. HCD characterization and regioisomer detection assays for this study can be found in the MetaboLights study MTBLS462. Linked Studies: <a href='https://www.ebi.ac.uk/metabolights/MTBLS391' target='_blank'>MTBLS391</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS394' target='_blank'>MTBLS394</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS397' target='_blank'>MTBLS397</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS398' target='_blank'>MTBLS398</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS462' target='_blank'>MTBLS462</a>

Project description:Lipid Data Analyzer (LDA; http://genome.tugraz.at/lda2) provides automated and reliable annotation of lipid species and their molecular structures in high-throughput data from chromatography-coupled tandem mass spectrometry using embedded rule sets. Using various low- and high-resolution mass spectrometry instruments with several collision energies, the method's platform independence is proved. The software's reliability, flexibility, and ability to identify novel lipid molecular species may now render current state-of-the-art lipid libraries obsolete. In lipidomics LC-MS/MS experiments, structural isomers within one MS1 peak frequently occur. In this experiment, structural isomeric pairs from PC, PE, PG, PS and TG are mixed in one sample at various concentrations. The algorithm appropriately assigning the respective structural isomers is demonstrated. Control experiment 1 assays for this study can be found in the MetaboLights study MTBLS394. Control experiment 2 assays for this study can be found in the MetaboLights study MTBLS391. Murine liver lipidome experiment assays for this study can be found in the MetaboLights study MTBLS396. LipidBlast benchmarking assays for this study can be found in the MetaboLights study MTBLS397. HCD characterization and regioisomer detection assays for this study can be found in the MetaboLights study MTBLS462. Linked Studies: <a href='https://www.ebi.ac.uk/metabolights/MTBLS391' target='_blank'>MTBLS391</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS394' target='_blank'>MTBLS394</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS396' target='_blank'>MTBLS396</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS397' target='_blank'>MTBLS397</a> <a href='https://www.ebi.ac.uk/metabolights/MTBLS462' target='_blank'>MTBLS462</a>

			Action	DRS
	151005s22.raw	Raw
	151005s23.raw	Raw
	151005s24.raw	Raw
	151005s25.raw	Raw
	151005s26.raw	Raw