Summary of Study ST002391

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 PR001538. The data can be accessed directly via it's Project DOI: 10.21228/M8WH85 This work is supported by NIH grant, U2C- DK119886.

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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.

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Study IDST002391
Study TitleEvaluation of Two Simultaneous Metabolomic and Proteomic Extraction Protocols Assessed by Ultra-High-Performance Liquid Chromatography Tandem Mass Spectrometry
Study SummaryUntargeted multi-omics analysis of plasma is an emerging tool for the identification of novel biomarkers for evaluating disease prognosis and for a better understanding of molecular mechanisms underlying human disease. The successful application of metabolomic and proteomic approaches relies on reproducibly quantifying a wide range of metabolites and proteins. Herein, we report the results of untargeted metabolomic and proteomic analyses from blood plasma samples following analyte extraction by two frequently used solvent systems: chloro-form/methanol and methanol-only. Whole blood samples were collected from participants (n=6) at University Hospital Sharjah (UHS) hospital, then plasma was separated and extracted by two methods i. methanol precipitation and, ii. 4:3 methanol:chloroform extraction. The coverage and reproducibility of the two methods were assessed by ultra-high-performance liquid chromatography-electrospray ionization quadrupole time-of-flight mass spectrometry (UHPLC-ESI-QTOF-MS). The study revealed that metabolite extraction by methanol-only showed greater reproducibility for both metabolomic and proteomic quantifications than did methanol/chloroform, while yielding similar peptide coverage. However, coverage of extracted metabolites was higher with the methanol/chloroform precipitation.
Institute
Sharjah Institute for Medical Research
Last NameFacility
First NameCore
AddressM32, SIMR, College of Pharmacy, Health Sciences, University of Sharjah
Emailtims-tof@sharjah.ac.ae
Phone065057656
Submit Date2022-12-06
Raw Data AvailableYes
Raw Data File Type(s)d
Analysis Type DetailLC-MS
Release Date2023-01-06
Release Version1
Core Facility Core Facility
https://dx.doi.org/10.21228/M8WH85
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Project:

Project ID:PR001538
Project DOI:doi: 10.21228/M8WH85
Project Title:Evaluation of Two Simultaneous Metabolomic and Proteomic Extraction Protocols Assessed by Ultra-High-Performance Liquid Chromatography Tandem Mass Spectrometry
Project Summary:Untargeted multi-omics analysis of plasma is an emerging tool for the identification of novel biomarkers for evaluating disease prognosis and for a better understanding of molecular mechanisms underlying human disease. The successful application of metabolomic and pro-teomic approaches relies on reproducibly quantifying a wide range of metabolites and proteins. Herein, we report the results of untargeted metabolomic and proteomic analyses from blood plasma samples following analyte extraction by two frequently used solvent systems: chloro-form/methanol and methanol-only. Whole blood samples were collected from participants (n=6) at University Hospital Sharjah (UHS) hospital, then plasma was separated and extracted by two methods i. methanol precipitation and, ii. 4:3 methanol:chloroform extraction. The coverage and reproducibility of the two methods were assessed by ultra-high-performance liquid chromatography-electrospray ionization quadrupole time-of-flight mass spectrometry (UHPLC-ESI-QTOF-MS). The study revealed that metabolite extraction by methanol-only showed greater reproducibility for both metabolomic and proteomic quantifications than did methanol/chloroform, while yielding similar peptide coverage. However, coverage of extracted metabolites was higher with the methanol/chloroform precipitation.
Institute:Sharjah Institute for Medical Research
Last Name:Facility
First Name:Core
Address:M32, SIMR, College of Pharmacy, Health Sciences, University of Sharjah
Email:tims-tof@sharjah.ac.ae
Phone:065057656

Subject:

Subject ID:SU002480
Subject Type:Human
Subject Species:Homo sapiens
Taxonomy ID:9606
Species Group:Mammals

Factors:

Subject type: Human; Subject species: Homo sapiens (Factor headings shown in green)

mb_sample_id local_sample_id Method
SA238175A02-02-4395Methanol;Chloroform
SA238176A03-01-4396Methanol;Chloroform
SA238177A04-01-4398Methanol;Chloroform
SA238178A02-01-4394Methanol;Chloroform
SA238179A03-02-4397Methanol;Chloroform
SA238180RA04-02-4399Methanol;Chloroform
SA238181A01-02-4393Methanol;Chloroform
SA238182RB04-02-4417Methanol;Chloroform
SA238183RB04-01-4416Methanol;Chloroform
SA238184A04-02-4399Methanol;Chloroform
SA238185RA04-01-4398Methanol;Chloroform
SA238186RA03-01-4408Methanol;Chloroform
SA238187A05-02-4401Methanol;Chloroform
SA238188A06-01-4402Methanol;Chloroform
SA238189A01-01-4392Methanol;Chloroform
SA238190A06-02-4403Methanol;Chloroform
SA238191A05-01-4400Methanol;Chloroform
SA238192RA01-01-4404Methanol;Chloroform
SA238193RA02-02-4407Methanol;Chloroform
SA238194RA02-01-4406Methanol;Chloroform
SA238195RA01-02-4405Methanol;Chloroform
SA238196RA03-02-4409Methanol;Chloroform
SA238157B05-02-4419Methanol Only
SA238158B06-01-4420Methanol Only
SA238159B04-02-4417Methanol Only
SA238160B03-02-4415Methanol Only
SA238161B03-01-4414Methanol Only
SA238162B06-02-4421Methanol Only
SA238163B04-01-4416Methanol Only
SA238164RB01-01-4422Methanol Only
SA238165RB03-01-4426Methanol Only
SA238166RB03-02-4427Methanol Only
SA238167RB02-02-4425Methanol Only
SA238168RB02-01-4424Methanol Only
SA238169RB01-02-4423Methanol Only
SA238170B02-02-4413Methanol Only
SA238171B05-01-4418Methanol Only
SA238172B02-01-4412Methanol Only
SA238173B01-01-4410Methanol Only
SA238174B01-02-4411Methanol Only
Showing results 1 to 40 of 40

Collection:

Collection ID:CO002473
Collection Summary:Human whole blood samples (5mL) were collected from healthy males and females (n=6) via venipuncture into EDTA tube at University Hospital Sharjah. All participants gave in-formed consent for inclusion before enrollment in the study. Blood was centrifuged (14000 rpm for 15 minutes at 24°C) to separate plasma samples, which were stored at -80°C.
Sample Type:Blood (plasma)

Treatment:

Treatment ID:TR002492
Treatment Summary:No treatment was applied, we were comparing extraction methods.

Sample Preparation:

Sampleprep ID:SP002486
Sampleprep Summary:Sample preparation 2.3.1Methanol precipitation for metabolomic extraction. 100 µL from each plasma sample was transferred to Eppendorf, then a volume of 300 µL of methanol was added to the aliquot. Samples were vortexed, then chilled at -20 °C for 2 hours followed by centrifugation (14000 rpm, 15 minutes, 24°C) to precipitate protein. The metabolite-containing supernatants were collected and transferred to glass vials for dry-ing using the EZ-2 Plus (GeneVac, Ipswich, UK) at 40 ±1°C and the protein pellets that remained were air dried for proteomics (see section 2.4). Dried metabolite samples were resuspended with 200 µl (0.1% formic acid in water), and vortexed for 2 min. The samples were filtered using a hydrophilic nylon syringe filter (0.45 μm pore size) and placed with-in glass inserts prior to being analyzed by Q-TOF MS. 4.3.2 Methanol: chloroform for metabolomic extraction. 100 µL from each sample was transferred to Eppendorf, then a volume of 400 µL of methanol and 300 µL of chloroform was added to the aliquot. Samples were vortexed then centrifuged (14000 rpm, 15 minutes, 24°C). Two metabolite-containing layers, an upper aqueous- and lower organic phase, were obtained separated by a thin white proteinaceous disc. The upper layer for each sample was transferred to glass vials and a volume of 400 µL of methanol was added, followed by vortexing and centrifugation to pellet the protein disc, after which the remaining supernatant was transferred to the same glass vials as be-fore for drying step and the protein pellets that remained were air dried for proteomics. Dried metabolomics samples were resuspended with 200 µL (0.1% formic acid in water) to be injected into HPLC and analyzed by Q-TOF MS.

Combined analysis:

Analysis ID AN003896
Analysis type MS
Chromatography type Reversed phase
Chromatography system Bruker Elute
Column Hamilton Intensity Solo 2 C18(100 x 2.1 mm,1.8um)
MS Type ESI
MS instrument type QTOF
MS instrument name Bruker timsTOF
Ion Mode POSITIVE
Units AU

Chromatography:

Chromatography ID:CH002885
Instrument Name:Bruker Elute
Column Name:Hamilton Intensity Solo 2 C18(100 x 2.1 mm,1.8um)
Chromatography Type:Reversed phase

MS:

MS ID:MS003636
Analysis ID:AN003896
Instrument Name:Bruker timsTOF
Instrument Type:QTOF
MS Type:ESI
MS Comments:Metabolomics Data Processing. For metabolomic analysis, MetaboScape® 4.0 program (Bruker Daltonics, Billerica, MA, USA) was employed for data processing, feature extrac-tion and metabolite identification. The T-ReX 2D/3D workflow was used to identify the molecular features with the following settings: The minimum peak length was set to 7 spectra and the minimum intensity threshold was 1000 counts for peaks detection. The peak area was employed for quantification and the injected external calibrant in the in-terval of 0–0.3 min was used to recalibrate the mass spectra. The selected mass to charge ratio (m/z) and retention time for scanning were in the ranges of 20–1300 m/z and 0.3–30 min, respectively. MS/MS spectra for features were averaged on import and features found at least in 12 of the 40 injections were taken into further consideration. Metabolites were identified by matching to the human metabolome database (HMDB) by combined MS/MS, precursor m/z values, and isotopic pattern scores. Where multiple features matched a given database entry, the annotation quality score (AQ score) was used to select only the best matching feature.
Ion Mode:POSITIVE
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