Summary of Study ST000464

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 PR000356. The data can be accessed directly via it's Project DOI: 10.21228/M81K5Z This work is supported by NIH grant, U2C- DK119886.

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Study ID	ST000464
Study Title	Transpulmonary metabolomics in pulmonary arterial hypertension
Study Summary	We hypothesize that transpulmonary metabolomic profiling will demonstrate a PAH-specific metabolic signature. We will examine organ-specific metabolism by measuring blood flowing into (pulmonary artery) and out of (pulmonary artery wedge) the pulmonary circulation at the time of right heart catheterization (RHC). We will compare PAH to patients without PH and to a disease control cohort with PH due to left heart disease (pulmonary ventrical hypertension - PVH).
Institute	University of North Carolina
Laboratory	Sumner Lab
Last Name	Sumner
First Name	Susan
Address	Eastern Regional Comprehensive Metabolomics Resource Core, UNC Nutrition Research Institute, 500 Laureate Way, Kannapolis, NC, 28081
Email	susan_sumner @unc.edu
Phone	704-250-5066
Submit Date	2016-09-07
Raw Data Available	Yes
Raw Data File Type(s)	1r
Analysis Type Detail	NMR
Release Date	2018-10-10
Release Version	1

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Sample Preparation:

Sampleprep ID:	SP000492
Sampleprep Summary:	De-identified samples were shipped to the NIH RTI-RCMRC on dry ice and immediately stored at -80 °C after being logged in for metabolomics analysis. Study samples were thawed on ice for sample preparation. A 150 µL aliquot of plasma was transferred to new labeled tubes for each study sample. A total study pool was generated by transferring 15 µL of plasma from each sample into a new 10 mL Falcon tube. The total pool sample was vortexed and 150 µL aliquots were transferred into 10 total pool-labeled tubes. Plasma and pooled samples were extracted with 450 µL methanol, vortexed for 2 min on a multi-tube vortexer, and centrifuged at 16,000 rcf for 5 min. A 400 µl aliquot of the supernatant was transferred into pre-labeled 2.0mL LoBind Eppendorf tubes, and the supernatant was lyophilized to complete dryness overnight. Samples were reconstituted with 250 µL of NMR master mix solution containing Chenomx ISTD: DSS-d6 and 0.20 M phosphate buffer at 7.4 pH. The tubes were vortexed for 2 min on a multi-tube vortexer and centrifuged at 16,000 rcf for 5 min. A 200uL aliquot of supernatants were transferred into a pre-labeled 3mm 4 NMR tubes for data acquisition on a 700 MHz spectrometer.

Sampleprep ID:

SP000492

Sampleprep Summary:

De-identified samples were shipped to the NIH RTI-RCMRC on dry ice and immediately stored at -80 °C after being logged in for metabolomics analysis. Study samples were thawed on ice for sample preparation. A 150 µL aliquot of plasma was transferred to new labeled tubes for each study sample. A total study pool was generated by transferring 15 µL of plasma from each sample into a new 10 mL Falcon tube. The total pool sample was vortexed and 150 µL aliquots were transferred into 10 total pool-labeled tubes. Plasma and pooled samples were extracted with 450 µL methanol, vortexed for 2 min on a multi-tube vortexer, and centrifuged at 16,000 rcf for 5 min. A 400 µl aliquot of the supernatant was transferred into pre-labeled 2.0mL LoBind Eppendorf tubes, and the supernatant was lyophilized to complete dryness overnight. Samples were reconstituted with 250 µL of NMR master mix solution containing Chenomx ISTD: DSS-d6 and 0.20 M phosphate buffer at 7.4 pH. The tubes were vortexed for 2 min on a multi-tube vortexer and centrifuged at 16,000 rcf for 5 min. A 200uL aliquot of supernatants were transferred into a pre-labeled 3mm 4 NMR tubes for data acquisition on a 700 MHz spectrometer.