Summary of Study ST001118
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 PR000749. The data can be accessed directly via it's Project DOI: 10.21228/M8VQ31 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 | ST001118 |
| Study Title | Metabolomics profiles of patients with Wilson disease reveal a distinct metabolic signature |
| Study Summary | This study is comparing the plasma metabolomics profile of patients with the genetic disorder, Wilson disease, compared to healthy subjects matched by age, sex, and BMI. Wilson disease is caused by a defect in a copper transporter leading to copper accumulation in the liver and brain leading to liver and/or neuropsychiatric symptoms. Mitochondrial defects are well-documented in Wilson disease. We hypothesize the acylcarnitine and primary metabolite profile will differ between patients with Wilson disease and healthy subjects and that these differences may indicate specific metabolic abnormalities. |
| Institute | University of California, Davis |
| Last Name | Medici |
| First Name | Valentina |
| Address | 4150 V St, Sacramento CA 95817 |
| vmedici@ucdavis.edu | |
| Phone | N/A |
| Submit Date | 2018-12-21 |
| Num Groups | 2 |
| Total Subjects | 110 |
| Raw Data Available | Yes |
| Raw Data File Type(s) | cdf |
| Analysis Type Detail | GC-MS |
| Release Date | 2019-09-23 |
| Release Version | 1 |
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Sample Preparation:
| Sampleprep ID: | SP001171 |
| Sampleprep Summary: | All samples were removed from -80°C and allowed to thaw on ice. Of the 100-250 uL of plasma shipped to the facility for analysis, 30 µL of plasma was pipetted into a new 1.5 mL Eppendorf tube. 1 mL of 3:3:2 acetonitrile:isopropanol:water was added to each sample. Samples were vortexed for 10 seconds using a MiniVortexer. Samples were then shaken on an Orbital Mixing Chilling/Heating Plate for 5 minutes at 4°C. Samples were centrifuged for 2 minutes at 14,000 rcf used the centrifuge Eppendorf 5415 D. Two 475 µL aliquots were removed from the supernatant. Both samples were dried to complete using Labconco Centrivap cold trap. 500 µL of 50:50 acetonitrile was added to each aliquot of all samples. Samples were vortexed for 10 seconds using the MiniVortexer. Samples were centrifuged for 2 minutes at 14,000 rcf using the centrifuge Eppendorf 5415 D. 475 µL of supernatant was removed and evaporated to dryness using the Labconco Centrivap cold trap. One sample is submitted to derivitization, the other sample is saved for LC-MS analysis. |
| Sample Derivatization: | To the dried down samples, 10 µL of a prepared methoxyamine solution was added to each sample. Samples were shaken on an Orbital Mixing Chilling/Heating Plate at 30°C for 1.5 hours. 91 µL of a N-methyl-N-(trimethylsilyl)-trifluoroacetamide (MSTFA) and fatty-acid methyl-esters (FAMES) solution was added to each sample. Samples were shaken on an Orbital Mixing Chilling/Heating Plate at 37°C for 30 minutes. Contents were transferred to individual glass vials with micro-inserts and capped immediately. Submitted to GC-MS analysis. |
