MetaboLightsapplication/xmlftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/m_MTBLS15335_LC-MS_negative_reverse-phase_v2_maf.tsvftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/a_MTBLS15335_LC-MS_negative_reverse-phase.txtftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/s_MTBLS15335.txtftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/i_Investigation.txtftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/FR1.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/PS1.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/FR3.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/Ctrl3.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/PS5.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/Ctrl1.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/PS3.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/FR4.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/FR2.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/Ctrl4.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/PS4.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/Ctrl5.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/Ctrl2.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/PS2.zipftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335/FILES/RAW_FILES/FR5.zipprimary200OKftp://ftp.ebi.ac.uk/pub/databases/metabolights/studies/public/MTBLS15335<p>After analyzing all the target substances' chromatographic peaks, the integrals were calculated. A standard curve was constructed using the standards to perform quantitative analysis, and the on-machine detection concentration was obtained. Further, based on the sample sampling volume, the specific content data of the target substances in the samples were calculated.</p>MetaboLightsPublicLiquid Chromatography MS - negative - reverse-phase<p>Using a Kinetex C8 column (100 Å, 2.6 µm, 2.1 mm × 100 mm), flow rate of 0.3 mL/min, column temperature of 40 °C, autosampler temperature of 4 °C, and injection volume of 1 μL. Mobile phase A was 0.1% formic acid in water, and mobile phase B was 50% methanol-isopropanol containing 0.1% formic acid. The gradient program was as follows: 0–1 min: A/B = 80:20 (v/v). 6</p><p>min: A/B = 60:40 (v/v); 9–10 min: A/B = 80:20 (v/v).</p>Targeted metabolomics of mouse feces with F. rodentium supplementation.jiang feiXiangya Hospital, Central South Universityfecesmass spectrometry assay<p>1. Perform all steps on ice throughout the experiment; </p><p>2. Transfer 20 mg of solid sample into a 2 mL centrifuge tube, add two steel beads, and add 800 μL extraction solution (containing internal standard). Vortex for 60 seconds; </p><p>3. Place in tissue grinder and grind at 55 Hz for 60 seconds; </p><p>4. Repeat once; </p><p>5. Centrifuge at 4000 g for 10 minutes at 10°C; </p><p>6. Take 40 μL supernatant and mix with 20 μL of 200 mM 3-NPH; </p><p>7. Add 20 μL of 120 mM EDC·HCl–6% pyridine solution and mix thoroughly; </p><p>8. Incubate at 40°C in a constant-temperature metal bath, shaking at 1200 rpm for 30 minutes; </p><p>9. After reaction, cool on ice for 3 minutes; </p><p>10. Centrifuge at 12000 g for 10 minutes at 4°C; </p><p>11. Take 50 μL supernatant and dilute to 200 μL with 150 μL formic acid solution (v/v, containing 0.1% formic acid), vortex for 60 seconds; </p><p>12. Centrifuge at 12000 g for 10 minutes at 4°C; </p><p>13. Filter the supernatant through a 0.22 μm filter membrane, collect the filtrate, and aliquot into bottles with a minimum volume of 50 μL per bottle.</p>Mus musculushttps://www.ebi.ac.uk/metabolights/MTBLS15335jiang fei. Xiangya Hospital, Central South University. feijiangfj@csu.edu.cn.<p>The data were processed using the quantitative software OS (version: 4.7, SCIEX) to obtain the mass spectrometry analysis data of different samples. </p>CFU/mLfeijiangfj@csu.edu.cn<p>mouse feces. ctrl, ps F. rodentium.store -80 degree</p>MetabolomicsMetabolomicsProteoWizard msconvertMus musculuscolorectal cancertargeted analysisexperimental blankAB SCIEX QTRAP 6500SCIEXAB SCIEXfecesMetabolomicsProteoWizard msconvertMus musculuscolorectal cancertargeted analysisexperimental blankAB SCIEX QTRAP 6500SCIEXAB SCIEXfeces<p>The SCIEX Citrine Triple Quad™ mass spectrometer was operated using the OS software (version: 4.7, SCIEX) in ESI (Electrospray Ionization) negative mode with Multiple Reaction Monitoring (MRM) data acquisition mode. Ion source parameters were as follows: ion spray voltage (IS) set to -4500 V in negative mode; gas1 (GS1) and gas2 (GS2) flow rates at 50 psi and 50 psi respectively; desolvation temperature at 550°C; curtain gas (CUR) at 30 psi; and collision gas (CAD) at 10.</p>falseTargeted metabolomics of mouse feces with F. rodentium supplementationTargeted metabolomics of mouse feces with F. rodentium supplementation2027-08-132026-08-13MTBLS15335