Summary of Study ST001122
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 PR000752. The data can be accessed directly via it's Project DOI: 10.21228/M8GD6N 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 | ST001122 |
| Study Title | Identification of urine metabolites in patients with interstitial cystitis using untargeted metabolomics (part II) |
| Study Summary | Urine metabolites are used in many clinical and biomedical studies, but usually only for a few classic compounds. Metabolomics detects vastly more metabolic signals that may be used to precisely define the health status of individuals. However, many compounds remain unidentified, hampering biochemical conclusions. Here, we annotate all metabolites detected using an untargeted metabolomics approach with a hydrophilic interaction liquid chromatography (HILIC) assay on a Q Exactive HF mass spectrometry. |
| Institute | University of California, Davis |
| Department | Genome and Biomedical Sciences Facility |
| Laboratory | WCMC Metabolomics Core |
| Last Name | Blaženović |
| First Name | Ivana |
| Address | 1315 Genome and Biomedical Sciences Facility, 451 Health Sciences Drive, Davis, CA 95616 |
| ivana.blazenovic@gmail.com | |
| Phone | (530) 754-8258 |
| Submit Date | 2019-01-15 |
| Total Subjects | 43 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | raw(Thermo) |
| Analysis Type Detail | LC-MS |
| Release Date | 2019-02-26 |
| Release Version | 1 |
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Sample Preparation:
| Sampleprep ID: | SP001191 |
| Sampleprep Summary: | Samples were removed from the -80°C freezer and allowed to thaw on ice. 225 µL of MeOH with lipid internal standards was added to each sample. Samples were vortexed for 10 seconds. 750 µL of MTBE plus quality controls was added to each sample. Samples were vortexed for 10 seconds. 188 µL of LC-MS grade water was added to each sample. Samples were shaken at 4°C on an orbital mixing plate for 6 minutes. Samples were centrifuged for 2 minutes at 14,000 rcf. 2 aliquots of 350 µL were removed from the top, organic phase. One aliquot was stored at -20°C for backup and the other was dried using a Labconco centrivap. 2 aliquots of 125 µL of the bottom polar phase were removed. One aliquot was stored at -20°C for backup and the other was dried using a Labconco centrivap. |
| Sample Resuspension: | For HILIC analysis, samples were resuspened in 100 µL of 9:1 methanol:toluene with deuterated compounds as an internal standard. Samples were vortexed for 10 seconds and then sonicated in room temperature water for 5 minutes. Samples were run in a centrifuge for 2 minutes at 16,100 rcf. 90 µL of the supernatant was removed and submitted to HILIC analysis. |
