Summary of Study ST001200

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 PR000808. The data can be accessed directly via it's Project DOI: 10.21228/M87M3D 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.

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Study IDST001200
Study TitleBiological Responses to Tobacco Smoke Exposure in III Children: Inflammatory Processes and the Oral Microbiome
Study SummaryThis project evaluates the biological response to overall tobacco smoke (OTS) exposure among pediatric emergency patients enrolled in a randomized-controlled intervention trial aimed at reducing secondhand smoke exposure. The effects of OTS as measured by salivary continine on salivary metabolic profiles are measured by untargeted high resolution metabolomics, comparing higher and lower levels of OTS.
Institute
Emory University
DepartmentSchool of Medicine
LaboratoryClincal Biomarkers Laboratory
Last NameUppal
First NameKaran
AddressNA
Emailkuppal2@emory.edu
Phone(404) 727 5027
Submit Date2019-06-12
Total Subjects284
Study CommentsBoth CHEAR pooled saliva samples and Clinical Biomarker Laboratory pooled plasma samples were used
Raw Data AvailableYes
Raw Data File Type(s)mzXML, raw(Thermo)
Chear Study2017-1762
Analysis Type DetailLC-MS
Release Date2020-05-11
Release Version1
Karan Uppal Karan Uppal
https://dx.doi.org/10.21228/M87M3D
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

Select appropriate tab below to view additional metadata details:


Combined analysis:

Analysis ID AN001996 AN001997
Analysis type MS MS
Chromatography type HILIC Reversed phase
Chromatography system Thermo Dionex Ultimate 3000 Thermo Dionex Ultimate 3000
Column Waters XBridge BEH Amide XP HILIC column. 2.1mm x 50mm x 2.5μm particle size with Thermo Accucore HILIC guard column Higgins endcapped C18 stainless steel column. 2.1mm x 50mm x 3μm particle size, Product #TS-0521-C183; Thermo Accucore C18 guard column with holder, Product #17126-014005
MS Type ESI ESI
MS instrument type Orbitrap Orbitrap
MS instrument name Thermo Q Exactive HF hybrid Orbitrap Thermo Q Exactive HF hybrid Orbitrap
Ion Mode POSITIVE NEGATIVE
Units peak area peak area

Chromatography:

Chromatography ID:CH001444
Chromatography Summary:The HILIC column is operated parallel to reverse phase column for simultaneous analytical separation and column flushing through the use of a dual head HPLC pump equipped with 10-port and 6-port switching valves. During operation of HILIC separation method, the MS is operated in positive ion mode and 10 microliters of sample is injected onto the HILIC column while the reverse phase column is flushing with wash solution. Flow rate is maintained at 0.35 mL/min until 1.5 min, increased to 0.4 mL/min at 4 min and held for 1 min. Solvent A is 100% LC-MS grade water, solvent B is 100% LC-MS grade acetonitrile and solvent C is 2% formic acid (v/v) in LC-MS grade water. Initial mobile phase conditions are 22.5% A, 75% B, 2.5% C hold for 1.5 min, with linear gradient to 77.5% A, 20% B, 2.5% C at 4 min, hold for 1 min, resulting in a total analytical run time of 5 min. During the flushing phase (reverse phase analytical separation), the HILIC column is equilibrated with a wash solution of 77.5% A, 20% B, 2.5% C.
Methods ID:2% formic acid in LC-MS grade water
Methods Filename:20160920_posHILIC120kres5min_ESI_c18negwash.meth
Chromatography Comments:Triplicate injections for each chromatography mode
Instrument Name:Thermo Dionex Ultimate 3000
Column Name:Waters XBridge BEH Amide XP HILIC column. 2.1mm x 50mm x 2.5μm particle size with Thermo Accucore HILIC guard column
Column Temperature:60 C
Sample Injection:10 uL
Solvent A:LC-MS grade water
Solvent B:LC-MS grade acetonitrile
Analytical Time:5 min
Sample Loop Size:15 uL
Sample Syringe Size:100 uL
Chromatography Type:HILIC
  
Chromatography ID:CH001445
Chromatography Summary:The C18 column is operated parallel to the HILIC column for simultaneous analytical separation and column flushing through the use of a dual head HPLC pump equipped with 10-port and 6- port switching valves. During operation of the C18 method, the MS is operated in negative ion mode and 10 μL of sample is injected onto the C18 column while the HILIC column is flushing with wash solution. Flow rate is maintained at 0.4 mL/min until 1.5 min, increased to 0.5 mL/min at 2 min and held for 3 min. Solvent A is 100% LC-MS grade water, solvent B is 100% LC-MS grade acetonitrile and solvent C is 10mM ammonium acetate in LC-MS grade water. Initial mobile phase conditions are 60% A, 35% B, 5% C hold for 0.5 min, with linear gradient to 0% A, 95% B, 5% C at 1.5 min, hold for 3.5 min, resulting in a total analytical run time of 5 min. During the flushing phase (HILIC analytical separation), the C18 column is equilibrated with a wash solution of 0% A, 95% B, 5% C until 2.5 min, followed by an equilibration solution of 60% A, 35% B, 5% C for 2.5 min.
Methods ID:10mM ammonium acetate in LC-MS grade water
Methods Filename:20160920_negC18120kres5min_ESI_HILICposwash.meth
Instrument Name:Thermo Dionex Ultimate 3000
Column Name:Higgins endcapped C18 stainless steel column. 2.1mm x 50mm x 3μm particle size, Product #TS-0521-C183; Thermo Accucore C18 guard column with holder, Product #17126-014005
Column Temperature:60C
Flow Rate:0.4 mL/min for 1.5 min; linear increase to 0.5 mL/min at 2 min held for 3 min
Sample Injection:10 uL
Solvent A:LC-MS grade water
Solvent B:LC-MS grade acetonitrile
Analytical Time:5 min
Sample Loop Size:15 uL
Sample Syringe Size:100 uL
Chromatography Type:Reversed phase
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