Summary of Study ST001256
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 PR000842. The data can be accessed directly via it's Project DOI: 10.21228/M8V694 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 | ST001256 |
Study Title | Metabolic landscape remodeling in dystrophic muscle through glucocorticoid steroid regimens |
Study Summary | Duchenne muscular dystrophy is caused by genetic defects in the gene encoding dystrophin and leads to progressive muscle degeneration. Glucocorticoid steroids are current mainstay pharmacological regimen to decrease muscle inflammation and prolong the ambulatory period in these patients, but daily intake of glucocorticoids like prednisone and deflazacort causes adverse side effects like osteoporosis, adrenal suppression, insulin resistance and obesity. Intermittent steroid dosing has been proposed as alternative to maintain benefits and limit side effects, but a detailed understanding of the mechanisms underpinning the regimen-specific effects in muscle is still missing. Here we explore how once-daily versus once-weekly prednisone (4 week-long treatment) affect the metabolomic landscape in mdx mouse muscle (genetic model of Duchenne muscular dystrophy; DBA/2J background) through metabolomics profiling. |
Institute | Northwestern University |
Last Name | Quattrocelli |
First Name | Mattia |
Address | 303 East Superior St, SQBRC 5-500, Chicago, IL, 60611, USA |
mattia.quattrocelli@northwestern.edu | |
Phone | 3125037450 |
Submit Date | 2019-09-26 |
Num Groups | 3 |
Total Subjects | 9 |
Num Males | 9 |
Raw Data Available | Yes |
Raw Data File Type(s) | raw(Thermo) |
Analysis Type Detail | LC-MS |
Release Date | 2020-01-06 |
Release Version | 1 |
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Sample Preparation:
Sampleprep ID: | SP001332 |
Sampleprep Summary: | Total hydrophilic metabolite content was extracted from quadriceps muscle tissue at treatment endpoint through methanol:water (80:20) extraction, adapting conditions described previously (Bruno et al., 2018). Briefly, total metabolite content from quadriceps muscle was obtained from ~100mg (wet weight) quadriceps muscle tissue per animal. Frozen (-80°C) muscle was pulverized in liquid nitrogen and homogenized with ~250l 2.3mm zirconia/silica beads (Cat # 11079125z, BioSpec, Bartlesville, OK) in 1ml methanol/water 80:20 (vol/vol) by means of Mini-BeadBeater-16 (Cat # 607, Biospec, Bartlesville, OK) for 1 minute. After centrifuging at 5000rpm for 5 minutes, 200l of supernatant were transferred into a tube pre-added with 800L of ice-cold methanol/water 80% (vol/vol). Samples were vortexed for 1 min, and then centrifuged at ~20,160 xg for 15 min at 4°C. Metabolite-containing extraction solution was then dried using SpeedVac (medium power). |