Summary of Study ST000137

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 PR000122. The data can be accessed directly via it's Project DOI: 10.21228/M8T59G This work is supported by NIH grant, U2C- DK119886.

See: https://www.metabolomicsworkbench.org/about/howtocite.php

Study ID	ST000137
Study Title	Metabolomics in sarcoidosis
Study Type	observation
Study Summary	Metabolites in sarcoidosis patients
Institute	Wayne State University
Department	Internal Medicine
Last Name	Geamanu
First Name	Andreea
Email	ageamanu@med.wayne.edu
Submit Date	2015-02-11
Total Subjects	30
Raw Data Available	No
Analysis Type Detail	NMR
Release Date	2015-02-11
Release Version	1

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Sample Preparation:

Sampleprep ID:	SP000153
Sampleprep Summary:	Serum samples were analyzed following filtration through a 3-kD nominal cut-off membrane (Amicon Ultra 0.5 mL centrifugal filters, Millipore Corp, Billerica, MA) to remove proteins, lipids, lipoproteins, and protein-bound forms of certain molecules. Each serum sample was transferred to a prewashed filter and centrifuged at 13,800 g for 60 minutes as previously described (Gregory, Park et al. 2013). The filters were further washed with deuterium oxide (D2O) and the filtrate was mixed with the filtered serum in a 1:1 ratio. A reference buffer solution containing 5 mmol/L disodium-2,2-dimethyl 2-silapentane-5-sulphonate (DSS) and 10 mmol/L imidazole in D2O was added to the samples in a 1:9 ratio. The D2O provided a field-frequency lock, whereas DSS was used as the chemical shift reference and imidazole as pH indicator for the NMR spectra. A total of 600 µL mixture was transferred to a 5 mm NMR tube (Sigma Aldrich, St. Louis, MO).

Sampleprep ID:

SP000153

Sampleprep Summary:

Serum samples were analyzed following filtration through a 3-kD nominal cut-off membrane (Amicon Ultra 0.5 mL centrifugal filters, Millipore Corp, Billerica, MA) to remove proteins, lipids, lipoproteins, and protein-bound forms of certain molecules. Each serum sample was transferred to a prewashed filter and centrifuged at 13,800 g for 60 minutes as previously described (Gregory, Park et al. 2013). The filters were further washed with deuterium oxide (D2O) and the filtrate was mixed with the filtered serum in a 1:1 ratio. A reference buffer solution containing 5 mmol/L disodium-2,2-dimethyl 2-silapentane-5-sulphonate (DSS) and 10 mmol/L imidazole in D2O was added to the samples in a 1:9 ratio. The D2O provided a field-frequency lock, whereas DSS was used as the chemical shift reference and imidazole as pH indicator for the NMR spectra. A total of 600 µL mixture was transferred to a 5 mm NMR tube (Sigma Aldrich, St. Louis, MO).