Summary of Study ST002223

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 PR001418. The data can be accessed directly via it's Project DOI: 10.21228/M8F409 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	ST002223
Study Title	Metabolic profiling of mouse tissues and tissue interstitial fluids
Study Summary	Tissue and tissue interstitial fluids was collected from mice of a hybrid C57BL/6J;129/SvJ background of about 12 weeks of age (8 in total) and used to profile the metabolic content. This is Part 6 of a study and the experimental number is MS56.
Institute	CECAD Research Center
Last Name	Yang
First Name	Ming
Address	Joseph-Stelzmann-Straße 26, Köln, Koeln, 50931, Germany
Email	ming.yang@uni-koeln.de
Phone	4922147884306
Submit Date	2022-07-15
Raw Data Available	Yes
Raw Data File Type(s)	raw(Thermo)
Analysis Type Detail	LC-MS
Release Date	2022-08-03
Release Version	1

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Sample Preparation:

Sampleprep ID:	SP002315
Sampleprep Summary:	For tissue extraction, samples were homogenized in metabolite extraction buffer using the proportion 25 μl/mg of buffer with Precellys Lysing tubes (Bertin Instruments). After that, extracts were kept in the freezer overnight and the following day centrifuged twice at max speed at 4C˚ to remove the protein precipitates. Equal volumes of supernatants were spiked in with 13C arginine (Cambridge Isotopes) for quantification of arginine content. For extraction of the tissue interstitial for interstitial fluid extraction, the organ was washed in saline solution and then a portion was centrifuged at for 10 min at 4°C at 106 x g using 20 µm nylon filters (Spectrum Labs, Waltham, MA, 148134) affixed on top of 2 ml Eppendorf tubes. 1μl of the eluate was extracted in 45μl of extraction buffer and frozen overnight. The following day, all extracted were centrifuged twice at max speed at 4C˚to remove the protein precipitates. Supernatants were finally spiked in with 13C arginine (Cambridge Isotopes) for arginine quantification.

Sampleprep ID:

SP002315

Sampleprep Summary:

For tissue extraction, samples were homogenized in metabolite extraction buffer using the proportion 25 μl/mg of buffer with Precellys Lysing tubes (Bertin Instruments). After that, extracts were kept in the freezer overnight and the following day centrifuged twice at max speed at 4C˚ to remove the protein precipitates. Equal volumes of supernatants were spiked in with 13C arginine (Cambridge Isotopes) for quantification of arginine content. For extraction of the tissue interstitial for interstitial fluid extraction, the organ was washed in saline solution and then a portion was centrifuged at for 10 min at 4°C at 106 x g using 20 µm nylon filters (Spectrum Labs, Waltham, MA, 148134) affixed on top of 2 ml Eppendorf tubes. 1μl of the eluate was extracted in 45μl of extraction buffer and frozen overnight. The following day, all extracted were centrifuged twice at max speed at 4C˚to remove the protein precipitates. Supernatants were finally spiked in with 13C arginine (Cambridge Isotopes) for arginine quantification.