Targeted, LCMS-based metabolomics for quantitative measurement of NAD+ metabolites

Samuel A.J. Trammell, Charles Brenner*

*Corresponding author af dette arbejde
    97 Citationer (Scopus)

    Abstract

    Nicotinamide adenine dinucleotide (NAD+) is a coenzyme for hydride transfer reactions and a substrate for sirtuins and other NAD+-consuming enzymes. The abundance of NAD +, NAD+ biosynthetic intermediates, and related nucleotides reflects the metabolic state of cells and tissues. High performance liquid chromatography (HPLC) followed by ultraviolet-visible (UV-Vis) spectroscopic analysis of NAD+ metabolites does not offer the specificity and sensitivity necessary for robust quantification of complex samples. Thus, we developed a targeted, quantitative assay of the NAD+ metabolome with the use of HPLC coupled to mass spectrometry. Here we discuss NAD+ metabolism as well as the technical challenges required for reliable quantification of the NAD+ metabolites. The new method incorporates new separations and improves upon a previously published method that suffered from the problem of ionization suppression for particular compounds.

    OriginalsprogEngelsk
    Artikelnummere201301012
    TidsskriftComputational and Structural Biotechnology Journal
    Vol/bind4
    Udgave nummer5
    Sider (fra-til)e201301012
    ISSN2001-0370
    DOI
    StatusUdgivet - 1 jan. 2013

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