Summary of Study ST001428
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 PR000980. The data can be accessed directly via it's Project DOI: 10.21228/M8169P 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 | ST001428 |
| Study Title | Role of environmental toxicants in modulating disease severity in children with NAFLD |
| Study Summary | This project aims to further understand about how the environment impacts nonalcoholic fatty liver disease NAFLD and nonalcoholic steatohepatitis (NASH) in children. At present the NASH CRN has the largest, well characterized cohort of children with NAFLD, including clinical data, labs, cytokines, genetic polymorphisms, but no proteomics, metabolomics, lipidomics or toxicant assessment. Exposure and untargeted metabolomics analyses will examine the role of environmental toxicants in modulating disease severity and the endogenous response to exposures in children with NAFLD. |
| Institute | Emory University |
| Department | School of Medicine |
| Laboratory | Clincal Biomarkers Laboratory |
| Last Name | Tran |
| First Name | ViLinh |
| Address | 615 Michael St, suite 225, Atlanta GA 30322 |
| vtran6@emory.edu | |
| Phone | 9122281788 |
| Submit Date | 2020-07-17 |
| Total Subjects | 427 |
| Study Comments | Both CHEAR pooled plasma samples and Clinical Biomarker Laboratory pooled plasma samples were used |
| Raw Data Available | Yes |
| Raw Data File Type(s) | raw(Thermo) |
| Chear Study | 2017-1593 |
| Analysis Type Detail | LC-MS |
| Release Date | 2022-07-28 |
| Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Sample Preparation:
| Sampleprep ID: | SP001510 |
| Sampleprep Summary: | Samples were prepared for metabolomics analysis using established methods(Johnson et al. (2010). Analyst; Go et al. (2015). Tox Sci). Prior to analysis, plasma aliquots were removed from storage at -80 degrees C and thawed on ice. Each cryotube was then vortexed briefly to ensure homogeneity, and 50 microliters was transferred to a clean microfuge tube. Immediately after, the plasma was treated with 100 microliters of ice-cold LC-MS grade acetonitrile (Sigma Aldrich) containing 2.5 microliters of internal standard solution with eight stable isotopic chemicals selected to cover a range of chemical properties. Following addition of acetonitrile, urine was equilibrated for 30 min on ice, upon which precipitated proteins were removed by centrifuge (14,000 rpm at 4 degrees C for 10 min). The resulting supernatant (100 microliters) was removed, added to a low volume autosampler vial and maintained at 4 degrees C until analysis (<22 h). |
| Sampleprep Protocol ID: | HRM_SP_082016_01 |
| Sampleprep Protocol Filename: | EmoryUniversity_HRM_SP_082016_01.pdf |
| Sampleprep Protocol Comments: | Date effective: 30 July 2016 |
| Extraction Method: | 2:1 acetonitrile: sample followed by vortexing and centrifugation |
