Stability of amino acids and related amines in human serum under different preprocessing and pre-storage conditions based on iTRAQ^®-LC-MS/MS.

ABSTRACT: Amino acid analysis or metabonomics requires large-scale sample collection, which makes sample storage a critical consideration. However, functional amino acids are often neglected in metabolite stability studies because of the difficulty in detecting and accurately quantifying them with most analysis methods. Here, we investigated the stability of amino acids and related amines in human serum following different preprocessing and pre-storage procedures. Serum samples were collected and subjected to three storage conditions; cold storage (4°C), room temperature storage (22°C), and freezing (-80°C). The concentration of amino acids and related amines were quantified using iTRAQ^®-LC-MS/MS with isobaric tagging reagents. Approximately 54.84%, 58.06%, and 48.39% of detectable and ta

SUBMITTER: An Z 

PROVIDER: S-EPMC7928226 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature