Summary of Study ST002251
This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001439. The data can be accessed directly via it's Project DOI: 10.21228/M8QD9Z This work is supported by NIH grant, U2C- DK119886.
See: https://www.metabolomicsworkbench.org/about/howtocite.php
This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.
Study ID | ST002251 |
Study Title | Untargeted metabolomics on plasma from children with asthma, comparing exacerbation-prone to non-exacerbation-prone |
Study Type | Untargeted MS |
Study Summary | Background: Some children with asthma remain poorly controlled and have recurrent exacerbations despite treatment with inhaled corticosteroids. Aside from prior exacerbations, there are currently no reliable predictors of exacerbation-prone asthma in these children and limited understanding of potential underlying mechanisms. Objective: We sought to quantify small molecules in the plasma of children with exacerbation- prone asthma through mass spectrometry-based metabolomics. We hypothesized that the plasma metabolome of these children would differ from that of children with non-exacerbation- prone asthma. Methods: Plasma metabolites were extracted from four pediatric asthma cohorts (n=215 total, n=41 with exacerbation-prone asthma) and detected using a ZIC-HILIC column coupled to a Q Exactive HF mass spectrometer. High-confidence annotations were retained for univariate analysis and were confirmed by a sensitivity analysis in subjects on high-dose inhaled corticosteroids. Metabolites that varied by cohort were excluded. Metaboanalyst was used to identify pathways of interest. Concentrations were calculated by reference standardization to NIST SRM 1950. Results: We identified 32 unique, cohort-independent metabolites that differed in children with exacerbation-prone asthma compared to children with non-exacerbation-prone asthma. Comparison of metabolite concentrations to literature-reported values for healthy children revealed that most metabolites were decreased in both asthma groups, but more so in exacerbation-prone asthma. Pathway analysis identified arginine, lysine, and methionine pathways as most impacted. Conclusions: Several plasma metabolites are perturbed in children with exacerbation-prone asthma and are largely related to arginine, lysine, and methionine pathways. While validation is needed, plasma metabolites may be potential biomarkers for exacerbation-prone asthma in children. |
Institute | Emory University |
Department | Pediatrics |
Laboratory | Joshua Chandler, PhD |
Last Name | Chandler |
First Name | Joshua |
Address | 2015 Upper Gate Drive NE, Atlanta, GA 30322 |
joshua.chandler@emory.edu | |
Phone | 404-727-3536 |
Submit Date | 2022-07-25 |
Num Groups | 2 |
Total Subjects | 215 |
Num Males | 135 |
Num Females | 80 |
Publications | JACI-D-22-00220 |
Raw Data Available | Yes |
Raw Data File Type(s) | mzML |
Analysis Type Detail | LC-MS |
Release Date | 2023-01-02 |
Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Project:
Project ID: | PR001439 |
Project DOI: | doi: 10.21228/M8QD9Z |
Project Title: | Exacerbation-prone pediatric asthma is associated with arginine, lysine, methionine pathway alterations |
Project Type: | Untargeted MS |
Project Summary: | Untargeted metabolomics of plasma samples from children with exacerbation-prone asthma compared to children with non-exacerbation-prone asthma |
Institute: | Emory University |
Department: | Pediatrics |
Laboratory: | Joshua Chandler, PhD |
Last Name: | Chandler |
First Name: | Joshua |
Address: | 2015 Uppergate Drive NE, Atlanta, GA 30322 |
Email: | joshua.chandler@emory.edu |
Phone: | 404-727-3536 |
Funding Source: | National Institute of Nursing Research; National Center for Advancing Translational Research; National Heart, Lung, and Blood Institute |
Publications: | JACI-D-22-00220 |
Contributors: | Kirsten A. Cottrill; Susan T. Stephenson; Ahmad F. Mohammad; Susan O. Kim; Nael A. McCarty; Rishikesan Kamaleswaran; Anne M. Fitzpatrick; Joshua D. Chandler |
Subject:
Subject ID: | SU002337 |
Subject Type: | Human |
Subject Species: | Homo sapiens |
Taxonomy ID: | 9606 |
Age Or Age Range: | 6-17 years |
Weight Or Weight Range: | Non-exacerbation-prone IQR: 30-68 kg; Exacerbation-prone IQR: 42-63 kg |
Height Or Height Range: | Non-exacerbation-prone IQR: 131-165 cm; Exacerbation-prone IQR: 140-163 cm |
Gender: | Male and female |
Human Race: | 18 white, 189 Black, 7 more than one race, 1 Asian |
Human Ethnicity: | 2 Hispanic, 113 Not Hispanic |
Human Medications: | 92 on high-dose inhaled corticosteroids; 94 on long-acting beta adrenergic receptor agonists; 111 on Montelukast |
Human Smoking Status: | 24 exposed to tobacco smoke |
Human Inclusion Criteria: | 1) current or historical evidence of >=12% reversibility in forced expiratory volume in one second (FEV1) relative to baseline after bronchodilator administration; 2) airway hyperresponsiveness to methacholine, with a provocative concentration of methacholine causing a 20% drop in FEV1 |
Human Exclusion Criteria: | 1) premature birth before 35 weeks of gestation; 2) other chronic airway disorders that could mimic asthma. |
Species Group: | Mammals |
Factors:
Subject type: Human; Subject species: Homo sapiens (Factor headings shown in green)
mb_sample_id | local_sample_id | ThreeorMoreBursts | ICShighdose | Study | AgeatEnrollment | AsthmaDurationYears | Sex | Ethnicity | Race | Height | Weight | BMI | LABA | Montelukast |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SA216791 | 20200724_049_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216792 | 20200725_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216793 | 20200725_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216794 | 20200725_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216795 | 20200720_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216796 | 20200725_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216797 | 20200725_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216798 | 20200725_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216799 | 20200724_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216800 | 20200720_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216801 | 20200718_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216802 | 20200715_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216803 | 20200718_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216804 | 20200718_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216805 | 20200720_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216806 | 20200718_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216807 | 20200718_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216808 | 20200720_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216809 | 20200720_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216810 | 20200718_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216811 | 20200720_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216812 | 20200720_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216813 | 20200715_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216814 | 20200715_005_qc | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216815 | 20200715_004_srm1950 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216816 | 20200715_006_qc | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216817 | 20200719_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216818 | 20200718_049_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216819 | 20200718_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216820 | 20200715_003_srm1950 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216821 | 20200719_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216822 | 20200725_044_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216823 | 20200715_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216824 | 20200725_043_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216825 | 20200719_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216826 | 20200719_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216827 | 20200719_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216828 | 20200719_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216829 | 20200725_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216830 | 20200715_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216831 | 20200719_049_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216832 | 20200715_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216833 | 20200715_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216834 | 20200719_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216835 | 20200715_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216836 | 20200718_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216837 | 20200718_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216838 | 20200715_007_qc | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216839 | 20200725_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216840 | 20200715_008_qc | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216841 | 20200715_009_qc | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216842 | 20200719_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216843 | 20200715_010_qc | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216844 | 20200720_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216845 | 20200721_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216846 | 20200723_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216847 | 20200723_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216848 | 20200722_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216849 | 20200722_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216850 | 20200722_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216851 | 20200722_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216852 | 20200721_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216853 | 20200721_049_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216854 | 20200716_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216855 | 20200716_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216856 | 20200717_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216857 | 20200717_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216858 | 20200716_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216859 | 20200716_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216860 | 20200722_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216861 | 20200722_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216862 | 20200723_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216863 | 20200723_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216864 | 20200723_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216865 | 20200723_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216866 | 20200722_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216867 | 20200723_001_Blank-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216868 | 20200723_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216869 | 20200716_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216870 | 20200716_049_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216871 | 20200716_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216872 | 20200719_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216873 | 20200722_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216874 | 20200716_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216875 | 20200722_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216876 | 20200717_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216877 | 20200717_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216878 | 20200721_004_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216879 | 20200721_003_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216880 | 20200721_005_QC-ddMS2-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216881 | 20200721_006_QC-ddMS2-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216882 | 20200717_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216883 | 20200717_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216884 | 20200721_002_Blank-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216885 | 20200722_049_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216886 | 20200724_027_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216887 | 20200724_028_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216888 | 20200717_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216889 | 20200717_049_QC-pos | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
SA216890 | 20200720_050_QC-neg | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
Collection:
Collection ID: | CO002330 |
Collection Summary: | Patients were not fasted prior to blood collection, but did withhold controller medication for 24 hours prior to blood collection. Blood was collected via venipuncture into EDTA-coated tubes. Plasma was isolated via centrifugation and stored at -80 *C. |
Sample Type: | Blood (plasma) |
Storage Conditions: | -80℃ |
Collection Vials: | EDTA-coated tubes |
Storage Vials: | Eppendorf tubes |
Collection Tube Temp: | Room temperature |
Additives: | EDTA |
Treatment:
Treatment ID: | TR002349 |
Treatment Summary: | Plasma samples were not treated with anything prior to metabolite extraction. |
Sample Preparation:
Sampleprep ID: | SP002343 |
Sampleprep Summary: | 50 uL of plasma was mixed with 200 uL of a 50:50 mixture of methanol and acetonitirile, vortexed, incubated on ice for 30 min, then centrifuged at 20,000 g for 10 min at 4 *C. 200 uL of the supernatant was collected for analysis. |
Extraction Method: | 50:50 methanol:acetonitrile for a 1:2:2 samples:methanol:acetonitrile final |
Extract Cleanup: | centrifuged at 20,000 g for 10 min at 4 *C |
Extract Storage: | -80℃ |
Combined analysis:
Analysis ID | AN003677 | AN003678 |
---|---|---|
Analysis type | MS | MS |
Chromatography type | HILIC | HILIC |
Chromatography system | Vanquish Horizon Binary ultrahigh performance liquid chromatography system | Vanquish Horizon Binary ultrahigh performance liquid chromatography system |
Column | SeQuant ZIC-HILIC | SeQuant ZIC-HILIC |
MS Type | ESI | ESI |
MS instrument type | Orbitrap | Orbitrap |
MS instrument name | Thermo Q Exactive HF hybrid Orbitrap | Thermo Q Exactive HF hybrid Orbitrap |
Ion Mode | POSITIVE | NEGATIVE |
Units | peak area | peak area |
Chromatography:
Chromatography ID: | CH002727 |
Chromatography Summary: | Equilibration time was 4 min at 90% B, with 3.5 min at 0.35 mL/min, then 0.5 min at 0.25 mL/min. After sample injection, a gradient ran from 90% to 20% B over 17.5 min at 0.25 mL/min, then flow was increased to 0.35 mL/min for 1 min and held at 20% B at 0.35 mL/min for 3.5 min. |
Instrument Name: | Vanquish Horizon Binary ultrahigh performance liquid chromatography system |
Column Name: | SeQuant ZIC-HILIC |
Column Pressure: | 15-180 bar |
Column Temperature: | 40 |
Flow Rate: | 0.25-0.35 mL/min |
Sample Injection: | 2 uL |
Solvent A: | 100% water; 0.1% formic acid |
Solvent B: | 100% acetonitrile; 0.1% formic acid |
Analytical Time: | 1.85-14.5 min |
Chromatography Type: | HILIC |
MS:
MS ID: | MS003428 |
Analysis ID: | AN003677 |
Instrument Name: | Thermo Q Exactive HF hybrid Orbitrap |
Instrument Type: | Orbitrap |
MS Type: | ESI |
MS Comments: | Data were processed using Compound Discoverer 3.2 (Thermo). Minimum peak intensity was 5E5 for positive mode. Retention times were aligned across runs, quality control (QC) pooled sample areas were normalized per metabolite using a cubic spline method, requiring <50% relative standard deviation after correction for compound retention. Missing values were gap-filled based on real peak detection and metabolites with max sample area <5-fold that of the blank were censored. |
Ion Mode: | POSITIVE |
Capillary Temperature: | 275 |
Ion Spray Voltage: | +3.5 kV |
Automatic Gain Control: | 1E6 |
MS ID: | MS003429 |
Analysis ID: | AN003678 |
Instrument Name: | Thermo Q Exactive HF hybrid Orbitrap |
Instrument Type: | Orbitrap |
MS Type: | ESI |
MS Comments: | Data were processed using Compound Discoverer 3.2 (Thermo). Minimum peak intensity was 2E5 for negative mode. Retention times were aligned across runs, quality control (QC) pooled sample areas were normalized per metabolite using a cubic spline method, requiring <50% relative standard deviation after correction for compound retention. Missing values were gap-filled based on real peak detection and metabolites with max sample area <5-fold that of the blank were censored. |
Ion Mode: | NEGATIVE |
Capillary Temperature: | 275 |
Ion Spray Voltage: | -2.75 kV |
Automatic Gain Control: | 1E6 |