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Characteristics of a novel NMR-based metabolomics platform for dogs

Ottka, C.; Vapalahti, K.; Puurunen, J.; Vahtera, L.; Lohi, H.

2019-12-11 molecular biology
10.1101/871285 bioRxiv
Show abstract

Metabolomics has proven itself an invaluable research tool, providing comprehensive insight to systemic metabolism. However, the lack of scalable and quantitative methods with known reference intervals and documented reproducibility has prevented the use of metabolomics in the clinical setting. This study describes the development and validation of a quantitative nuclear magnetic resonance (NMR) -based metabolomics platform for canine serum and plasma samples. Altogether 8247 canine samples were analyzed using a Brukers 500 MHz NMR spectrometer. Using statistical approaches derived from international guidelines, we defined reference intervals for 123 biomarkers, studied method precision, analyte storage stability, the effect of prolonged contact to red blood cells, differences of blood collection tubes, interference of lipemia, hemolysis and bilirubinemia, method comparison, and demonstrated the methods practical relevance in a hyperglycemic cohort. Owing to the advantages of quantitative results, high reproducibility, and scalability, this canine metabolomics platform holds great potential for numerous clinical and research applications to improve canine health and well-being.

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