Electrospray Quadrupole Travelling Wave Ion Mobility Time-of-Flight Mass Spectrometry for the Detection of Plasma Metabolome Changes Caused by Xanthohumol in Obese Zucker (fa/fa) Rats

Abstract

This study reports on the use of traveling wave ion mobility quadrupole time-of-flight (ToF) mass spectrometry for plasma metabolomics. Plasma metabolite profiles of obese Zucker fa/fa rats were obtained after the administration of different oral doses of Xanthohumol; a hop-derived dietary supplement. Liquid chromatography coupled data independent tandem mass spectrometry (LC-MSE) and LC-ion mobility spectrometry (IMS)-MSE acquisitions were conducted in both positive and negative modes using a Synapt G2 High Definition Mass Spectrometry (HDMS) instrument. This method provides identification of metabolite classes in rat plasma using parallel alternating low energy and high energy collision spectral acquisition modes. Data sets were analyzed using pattern recognition methods. Statistically significant (p < 0.05 and fold change (FC) threshold > 1.5) features were selected to identify the up-/down-regulated metabolite classes. Ion mobility data visualized using drift scope software provided a graphical read-out of differences in metabolite classes.

Endogenous N -acyl taurines regulate skin wound healing

“…Data were acquired in MS e mode with MS/MS fragmentation performed in the trap region. This technique enabled the best LC peak sampling by acquiring alternate low-energy/high-energy scans over the entire selected mass range, with no precursor selection in the quadrupole region (48). Low-energy scans were acquired at fixed 4-eV potential, and high-energy scans were acquired with an energy ramp from 25 to 45 eV.…”

Clinical Metabolomics: The New Metabolic Window for Inborn Errors of Metabolism Investigations in the Post-Genomic Era

“…Recently, approaches using another gas phase separation, ion mobility spectrometry (IMS) [ 66 ], has been gaining interest in metabolomics [ 67 , 68 , 69 , 70 , 71 , 72 , 73 ]. Indeed, IMS is a well-established post-ionization separation method based on size, shape, and charge performed on a millisecond timescale, which represents an intermediate timescale between chromatography (seconds) and high-resolution MS detection (microseconds).…”

Specific characterization of non‐steroidal selective androgen peceptor modulators using supercritical fluid chromatography coupled to ion‐mobility mass spectrometry: application to the detection of enobosarm in bovine urine

“…Challenges due to the complexity of biological matrices could therefore be overcome using promising technologies like the traveling-wave ion mobility (TWIM) cell included in an orthogonal Q-TOF-MS. [22] This device enables separation of ionic species based on their size, charge and shape. [25][26][27] This approach has also recently been assessed in the context of chemical food safety applied to the specific and sensitive detection of small molecules like β-adrenergic agonists in complex biological matrices. Although this technology has mainly been investigated for large molecules [23] for the purpose of structural analyses, recent studies have presented interesting applications for small molecules detection in terms of separation efficiency [24] and specificity.…”

“…Although this technology has mainly been investigated for large molecules [23] for the purpose of structural analyses, recent studies have presented interesting applications for small molecules detection in terms of separation efficiency [24] and specificity. [25][26][27] This approach has also recently been assessed in the context of chemical food safety applied to the specific and sensitive detection of small molecules like β-adrenergic agonists in complex biological matrices. [28] The idea behind this study was first to compare LC and SFC separation performances of non-steroidal SARMs and secondly, to assess the potential of IMS-MS in relation with the analysis of these compounds when present at trace levels in biological matrices, but also to provide data related to enobosarm elimination and detectability in bovine urine.…”