Quantitative analysis of other metabolites in serum samples, including amino acids, biogenic amines, acylcarnitines, phosphatidylcholines, lysophosphatidylcholines and sphingolipids was performed using the Biocrates AbsoluteIDQ® p180 kit, according to the manufacturer guidelines19 (link). Samples were analysed using flow injection analysis (FIA)-MS/MS and LC-MS/MS for different metabolite groups.
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