Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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NMR-based metabolomic profiling of the liver, serum, and urine of piglets treated with deoxynivalenol

  • Jeong, Jin Young (Animal Nutrition & Physiology Team, National Institute of Animal Science) ;
  • Kim, Min Seok (Department of Animal Science, College of Agriculture and Life Science, Chonnam National University) ;
  • Jung, Hyun Jung (Animal Nutrition & Physiology Team, National Institute of Animal Science) ;
  • Kim, Min Ji (Animal Nutrition & Physiology Team, National Institute of Animal Science) ;
  • Lee, Hyun Jeong (Animal Nutrition & Physiology Team, National Institute of Animal Science) ;
  • Lee, Sung Dae (Animal Nutrition & Physiology Team, National Institute of Animal Science)
  • Received : 2018.04.10
  • Accepted : 2018.06.14
  • Published : 2018.09.30
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Abstract

Deoxynivalenol (DON), a Fusarium mycotoxin, causes health hazards for both humans and livestock. Therefore, the aim of this study was to investigate the metabolic profiles of the liver, serum, and urine of piglets fed DON using proton nuclear magnetic resonance ($^1H-NMR$) spectroscopy. The $^1H-NMR$ spectra of the liver, serum, and urine samples of the piglets provided with feed containing 8 mg DON/kg for 4 weeks were aligned and identified using the icoshift algorithm of MATLAB $R^2013b$. The data were analyzed by multivariate analysis and by MetaboAnalyst 4.0. The DON-treated groups exhibited discriminating metabolites in the three different sample types. Metabolic profiling by $^1H-NMR$ spectroscopy revealed potential metabolites including lactate, glucose, taurine, alanine, glycine, glutamate, creatine, and glutamine upon mycotoxin exposure (variable importance in the projection, VIP > 1). Forty-six metabolites selected from the principal component analysis (PCA) helped to predict sixty-five pathways in the DON-treated piglets using metabolite sets containing at least two compounds. The DON treatment catalyzed the citrate synthase reactions which led to an increase in the acetate and a decrease in the glucose concentrations. Therefore, our findings suggest that glyceraldehyde-3-phosphate dehydrogenase, citrate synthase, ATP synthase, and pyruvate carboxylase should be considered important in piglets fed DON contaminated feed. Metabolomics analysis could be a powerful method for the discovery of novel indicators underlying mycotoxin treatments.

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References

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