Summary of Study ST001206

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 PR000811. The data can be accessed directly via it's Project DOI: 10.21228/M8VD62 This work is supported by NIH grant, U2C- DK119886.

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Study ID	ST001206
Study Title	Effects of cold exposure on serum lipidomic in mice
Study Summary	We aimed to identify lipids released during cold exposure from adipose tissue, with a role in adaptive thermogenesis.
Institute	Joslin Diabetes Center
Department	Integrative Physiology and Metabolism
Laboratory	Yu-Hua Tseng lab
Last Name	Leiria
First Name	Luiz
Address	One Joslin Place, Boston-MA, USA, 02215
Email	luiz.leiria@joslin.harvard.edu
Phone	1 6173091967
Submit Date	2019-06-26
Study Comments	Joslin Diabetes Center affiliate of Harvard Medical School
Raw Data Available	Yes
Raw Data File Type(s)	wiff
Analysis Type Detail	LC-MS
Release Date	2019-07-17
Release Version	1

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Sample Preparation:

Sampleprep ID:	SP001281
Sampleprep Summary:	Aliquots of 100 µL serum or were taken. A mixture of deuterium-labeled internal standards was added to each aliquot, followed by 3x volume of sample of cold methanol (MeOH). Samples were vortexed for 5 minutes and stored at −20 °C overnight. Cold samples were centrifuged at 14,000g for 10 minutes, and the supernatant was then transferred to a new tube and 3 mL of acidified H2O (pH 3.5) was added to each sample prior to C18 SPE. The methyl formate fractions were collected, dried under nitrogen, and reconstituted in 50 µL MeOH:H2O (1:1, by vol). Samples were transferred to 0.5 mL tubes and centrifuged at 20,000g at 4 °C for 10 minutes. (35ul) of supernatant was transferred to LC–MS/MS vials for analysis using the BERG LC–MS/MS mediator lipidomics platform.

Sampleprep ID:

SP001281

Sampleprep Summary:

Aliquots of 100 µL serum or were taken. A mixture of deuterium-labeled internal standards was added to each aliquot, followed by 3x volume of sample of cold methanol (MeOH). Samples were vortexed for 5 minutes and stored at −20 °C overnight. Cold samples were centrifuged at 14,000g for 10 minutes, and the supernatant was then transferred to a new tube and 3 mL of acidified H2O (pH 3.5) was added to each sample prior to C18 SPE. The methyl formate fractions were collected, dried under nitrogen, and reconstituted in 50 µL MeOH:H2O (1:1, by vol). Samples were transferred to 0.5 mL tubes and centrifuged at 20,000g at 4 °C for 10 minutes. (35ul) of supernatant was transferred to LC–MS/MS vials for analysis using the BERG LC–MS/MS mediator lipidomics platform.