Summary of Study ST002546

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR001639. The data can be accessed directly via it's Project DOI: 10.21228/M8V41D This work is supported by NIH grant, U2C- DK119886.


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.

Perform statistical analysis  |  Show all samples  |  Show named metabolites  |  Download named metabolite data  
Download mwTab file (text)   |  Download mwTab file(JSON)   |  Download data files (Contains raw data)
Study IDST002546
Study TitleLipidomic profile of Toxplasma gondii-infected mice (Negative mode MS)
Study SummaryCachexia is a life-threatening disease characterized by chronic, inflammatory muscle wasting and systemic metabolic impairment. Despite its high prevalence, there are no efficacious therapies for cachexia. Mice chronically infected with the protozoan parasite Toxoplasma gondii represent a novel animal model recapitulating the chronic kinetics of cachexia. To understand how perturbations to metabolic tissue homeostasis influence circulating metabolite availability we used mass spectrometry analysis. Despite the significant reduction in circulating triacylglycerides, nonesterified fatty acids, and glycerol, sphingolipid long-chain bases and a subset of phosphatidylcholines (PCs) were significantly increased in the sera of mice with T. gondii infection-induced cachexia. In addition, the TCA cycle intermediates -ketoglutarate, 2- hydroxyglutarate, succinate, fumarate, and malate were highly depleted in cachectic mouse sera. Sphingolipids and their de novo synthesis precursors PCs are the major components of the mitochondrial membrane and regulate mitochondrial function consistent with a causal relationship in the energy imbalance driving T. gondii-induced chronic cachexia.
University of Virginia
Last NameFeng
First NameTzu-Yu
Address345 Crispell Dr.
Submit Date2023-04-06
Raw Data AvailableYes
Raw Data File Type(s)d
Analysis Type DetailLC-MS
Release Date2023-04-20
Release Version1
Tzu-Yu Feng Tzu-Yu Feng application/zip

Select appropriate tab below to view additional metadata details:

Combined analysis:

Analysis ID AN004193
Analysis type MS
Chromatography type Reversed phase
Chromatography system Waters Acquity
Column Waters ACQUITY UPLC CSH C18 (100 x 2.1mm,1.7um)
MS instrument type QTOF
MS instrument name Agilent 6530 QTOF
Units peak heights


MS ID:MS003940
Analysis ID:AN004193
Instrument Name:Agilent 6530 QTOF
Instrument Type:QTOF
MS Comments:Samples extracted using Matyash extraction procedure which includes MTBE, MeOH, and H2O. The organic (upper) phase was dried down and submitted for resuspension and injection onto the LC while the aqueous (bottom) phase was dried down and submitted to derivatization for GC. They are resuspended with 110 uL of a solution of 9:1 methanol: toluene and 50 ng/mL CUDA. This is then shaken for 20 seconds, sonicated for 5 minutes at room temperature, and then centrifuged for 2 minutes at 16100 rcf. The samples are then aliquoted into three parts. 33 uL are aliquoted into a vial with a 50 uL glass insert for positive and negative mode lipidomics. The last part is aliquoted into an eppendorf tube to be used as a pool. The samples are then loaded up on an Agilent 1290 Infinity LC stack. The positive and negative mode were run on an Agilent 6530 with a scan range of m/z 120-1200 Da with an acquisition speed of 2 spectra/s. Between 0.5 and 2 uL were injected onto a Waters ACQUITY UPLC CSH C18 1.7um 2.1x100mm Column with VanGuard PreColumn 2.1x5 mm . The gradient used is 0 min 15% (B), 0–2 min 30% (B), 2–2.5 min 48% (B), 2.5–11 min 82% (B), 11–11.5 min 99% (B), 11.5–12 min 99% (B), 12–12.1 min 15% (B), 12.1–15 min 15% (B) with a flow rate of 0.6 mL/min. The mass resolution for the Agilent 6530 is 10,000 for ESI (+).