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Metabolic profiling of zebrafish embryo development from blastula period to early larval stages
Umeå University, Faculty of Science and Technology, Department of Chemistry. Accelerator Lab (ACL), Karlsruhe Institute of Technology, Karlsruhe, Germany; AcureOmics, Umeå, Sweden.ORCID iD: 0000-0002-6294-7844
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2019 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 14, no 5, article id e0213661Article in journal (Refereed) Published
Abstract [en]

The zebrafish embryo is a popular model for drug screening, disease modelling and molecular genetics. In this study, samples were obtained from zebrafish at different developmental stages. The stages that were chosen were 3/4, 4/5, 24, 48, 72 and 96 hours post fertilization (hpf). Each sample included fifty embryos. The samples were analysed using gas chromatography time-of-flight mass spectrometry (GC-TOF-MS). Principle component analysis (PCA) was applied to get an overview of the data and orthogonal projection to latent structure discriminant analysis (OPLS-DA) was utilised to discriminate between the developmental stages. In this way, changes in metabolite profiles during vertebrate development could be identified. Using a GC-TOF-MS metabolomics approach it was found that nucleotides and metabolic fuel (glucose) were elevated at early stages of embryogenesis, whereas at later stages amino acids and intermediates in the Krebs cycle were abundant. This agrees with zebrafish developmental biology, as organs such as the liver and pancreas develop at later stages. Thus, metabolomics of zebrafish embryos offers a unique opportunity to investigate large scale changes in metabolic processes during important developmental stages in vertebrate development. In terms of stability of the metabolic profile and viability of the embryos, it was concluded at 72 hpf was a suitable time point for the use of zebrafish as a model system in numerous scientific applications.

Place, publisher, year, edition, pages
San Francisco: Public Library of Science , 2019. Vol. 14, no 5, article id e0213661
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Developmental Biology
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URN: urn:nbn:se:umu:diva-159600DOI: 10.1371/journal.pone.0213661ISI: 000467843000002PubMedID: 31086370OAI: oai:DiVA.org:umu-159600DiVA, id: diva2:1325789
Available from: 2019-06-17 Created: 2019-06-17 Last updated: 2019-06-17Bibliographically approved

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Torell, FridaTrygg, Johan

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