Summary of Study ST000879

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 PR000610. The data can be accessed directly via it's Project DOI: 10.21228/M8TH6S 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.

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Study IDST000879
Study TitleDiet, genetics and gut microbiome drive dynamic changes in plasma metabolites [plasma]
Study TypePlasma data
Study SummaryC57BL/6J mice (B6) and 129S1 mice (129J) were purchased from Jackson Laboratory (Bar Harbor, ME) and 129S6 mice (129T) were purchased from Taconic Farms (Germantown, NY). Mice were maintained on normal chow containing 22% calories from fat, 23% from protein and 55% from carbohydrates (Mouse Diet 9F 5020, PharmaServ, Framingham, MA) or a high fat diet (Open Source Diet, D12492, Research Diets, New Brunswick, NJ) containing 60% calories from fat, 20% from protein and 20% from carbohydrates. For antibiotic treatment, 6-week old mice were treated with either placebo, vancomycin (1g/L) or metronidazole (1g/L) (Sigma-Aldrich, St. Louis, MO) in drinking water then started on HFD from age 7 to 11 weeks. The mice were fasted for 2 hours and anesthetized with isoflurane before collecting cecum and plasma.
Institute
Broad Institute of MIT and Harvard
Last NameAvila-Pacheco
First NameJulian
Address415 Main Street
Emailjravilap@broadinstitute.org
Phone617-714-8264
Submit Date2017-10-02
Num Groups12
Total Subjects47
Raw Data AvailableYes
Raw Data File Type(s)raw(Thermo)
Analysis Type DetailLC-MS
Release Date2018-01-29
Release Version1
Julian Avila-Pacheco Julian Avila-Pacheco
https://dx.doi.org/10.21228/M8TH6S
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Sample Preparation:

Sampleprep ID:SP000920
Sampleprep Summary:HILIC-pos: LC-MS samples were prepared from plasma (10 μL) via protein precipitation with the addition of nine volumes of 74.9:24.9:0.2 v/v/v acetonitrile/methanol/formic acid containing stable isotope-labeled internal standards (valine-d8, Isotec; and phenylalanine-d8, Cambridge Isotope Laboratories; Andover, MA). The samples are centrifuged (10 min, 9,000 x g, 4°C), and the supernatants were injected directly. HILIC-neg:Plasma samples (30μL) were extracted using 120 μL of 80% methanol (VWR) containing 0.05 ng/μL inosine-15N4, 0.05 ng/μL thymine-d4, and 0.1 ng/μL glycocholate-d4 as internal standards (Cambridge Isotope Laboratories). The samples were centrifuged (10 min, 9,000 x g, 4ºC) and the supernatants (10 μL) were injected directly. C18-neg: Plasma samples (20 μL) were extracted using 60 μL of methanol containing PGE2-d4 as an internal standard (Cayman Chemical Co.; Ann Arbor, MI) and centrifuged (10 min, 9,000 x g, 4°C). C8-pos: Lipids were extracted from plasma (10 μL) using 190 μL of isopropanol containing 1-dodecanoyl-2-tridecanoyl-sn-glycero-3-phosphocholine as an internal standard (Avanti Polar Lipids; Alabaster, AL). After centrifugation (10 min, 9,000 x g, ambient temperature), supernatants (10 μL) were injected directly
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