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MB Sample ID: SA214762

Local Sample ID:300322
Subject ID:SU002332
Subject Type:Human
Subject Species:Homo sapiens
Taxonomy ID:9606

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Subject:

Subject ID:SU002332
Subject Type:Human
Subject Species:Homo sapiens
Taxonomy ID:9606

Factors:

Local Sample IDMB Sample IDFactor Level IDLevel ValueFactor Name
300322SA214762FL026034Mothermother.child

Collection:

Collection ID:CO002325
Collection Summary:The participating women collected stool samples at home or in the delivery hospital. Infant stool samples were collected by the mothers at home and stored in the household freezer (−20°C) until the next visit to the study center. The samples were then shipped on dry ice to the EDIA Core Laboratory in Helsinki, where the samples were stored at −80°C.
Sample Type:Feces

Treatment:

Treatment ID:TR002344
Treatment Summary:NA

Sample Preparation:

Sampleprep ID:SP002338
Sampleprep Summary:Stool samples were homogenized in 10 μL of water per milligram stool sample weight using a bead mill (TissueLyser II; Qiagen) and the aqueous homogenates were aliquoted for metabolite profiling analyses. LC-MS samples were prepared for four profiling methods as follows: HILIC-pos: Metabolites were extracted by adding 90 μL of 74.9:24.9:0.2 v/v/v acetonitrile/methanol/formic acid containing stable isotope-labeled internal standards (valine-d8, Isotec; and phenylalanine-d8, Cambridge Isotope Laboratories; Andover, MA) to a 10 μL aliquot of stool homogenate or plasma. Samples were vortexed and then centrifuged (10 min, 9,000 x g, 4°C) to pellet protein precipitates. Supernatants were transferred to glass autosampler vials containing inserts for LC-MS analysis. C8-pos: Lipids were extracted by adding 190 μL of isopropanol containing 1-dodecanoyl-2-tridecanoyl-sn-glycero-3-phosphocholine as an internal standard (Avanti Polar Lipids; Alabaster, AL) to a 10 μL aliquot of stool homogenate or plasma. Samples were vortexed and then centrifuged (10 min, 9,000 x g, ambient temperature) to pellet protein precipitates. Supernatants were transferred to glass autosampler vials containing inserts for LC-MS analysis. HILIC-neg: Metabolites were extracted by adding 120 μL of 80% methanol containing inosine-15N4, thymine-d4 and glycocholate-d4 internal standards (Cambridge Isotope Laboratories; Andover, MA) to a 30 μL aliquot of stool homogenate or plasma. Samples were vortexed and then centrifuged (10 min, 9,000 x g, 4°C) to pellet protein precipitates. Supernatants were transferred to glass autosampler vials containing inserts for LC-MS analysis. C18-neg: Metabolites were extracted by adding 90 μL of methanol containing PGE2-d4 as an internal standard (Cayman Chemical Co.; Ann Arbor, MI) to a 30 μL aliquot of stool homogenate or plasma. Samples were vortexed and then centrifuged (10 min, 9,000 x g, 4°C) to pellet protein precipitates. Supernatants were transferred to glass autosampler vials containing inserts for LC-MS analysis.

Combined analysis:

Analysis ID AN003666 AN003667 AN003668 AN003669
Analysis type MS MS MS MS
Chromatography type HILIC Reversed phase HILIC Reversed phase
Chromatography system Shimadzu Nexera X2 Shimadzu Nexera X2 Shimadzu Nexera X2 Shimadzu Nexera X2
Column Waters Atlantis HILIC (150 x 2mm,3um) Waters Acquity BEH C8 (100 x 2.1mm,1.7um) Phenomenex Luna NH2 (150 x 2.1mm,3um) Waters Acquity T3 (150 x 2.1 mm,1.7um)
MS Type ESI ESI ESI ESI
MS instrument type Orbitrap Orbitrap Orbitrap Orbitrap
MS instrument name Thermo Q Exactive Plus Orbitrap Thermo Q Exactive Plus Orbitrap Thermo Q Exactive Plus Orbitrap Thermo Q Exactive Orbitrap
Ion Mode POSITIVE POSITIVE NEGATIVE NEGATIVE
Units Unitless Abundances Unitless Abundances Unitless Abundances Unitless Abundances

Chromatography:

Chromatography ID:CH002716
Instrument Name:Shimadzu Nexera X2
Column Name:Waters Atlantis HILIC (150 x 2mm,3um)
Chromatography Type:HILIC
  
Chromatography ID:CH002717
Instrument Name:Shimadzu Nexera X2
Column Name:Waters Acquity BEH C8 (100 x 2.1mm,1.7um)
Chromatography Type:Reversed phase
  
Chromatography ID:CH002718
Instrument Name:Shimadzu Nexera X2
Column Name:Phenomenex Luna NH2 (150 x 2.1mm,3um)
Chromatography Type:HILIC
  
Chromatography ID:CH002719
Instrument Name:Shimadzu Nexera X2
Column Name:Waters Acquity T3 (150 x 2.1 mm,1.7um)
Chromatography Type:Reversed phase

MS:

MS ID:MS003417
Analysis ID:AN003666
Instrument Name:Thermo Q Exactive Plus Orbitrap
Instrument Type:Orbitrap
MS Type:ESI
MS Comments:Raw data were processed using TraceFinder 3.3 software (Thermo Fisher Scientific; Waltham, MA) and Progenesis QI (Nonlinear Dynamics; Newcastle upon Tyne, UK). Metabolite identities were confirmed using authentic reference standards or reference samples.
Ion Mode:POSITIVE
  
MS ID:MS003418
Analysis ID:AN003667
Instrument Name:Thermo Q Exactive Plus Orbitrap
Instrument Type:Orbitrap
MS Type:ESI
MS Comments:Raw data were processed using TraceFinder 3.3 software (Thermo Fisher Scientific; Waltham, MA) and Progenesis QI (Nonlinear Dynamics; Newcastle upon Tyne, UK). Metabolite identities were confirmed using authentic reference standards or reference samples.
Ion Mode:POSITIVE
  
MS ID:MS003419
Analysis ID:AN003668
Instrument Name:Thermo Q Exactive Plus Orbitrap
Instrument Type:Orbitrap
MS Type:ESI
MS Comments:Raw data were processed using TraceFinder 3.3 software (Thermo Fisher Scientific; Waltham, MA) and Progenesis QI (Nonlinear Dynamics; Newcastle upon Tyne, UK). Metabolite identities were confirmed using authentic reference standards or reference samples.
Ion Mode:NEGATIVE
  
MS ID:MS003420
Analysis ID:AN003669
Instrument Name:Thermo Q Exactive Orbitrap
Instrument Type:Orbitrap
MS Type:ESI
MS Comments:Raw data were processed using TraceFinder 3.3 software (Thermo Fisher Scientific; Waltham, MA) and Progenesis QI (Nonlinear Dynamics; Newcastle upon Tyne, UK). Metabolite identities were confirmed using authentic reference standards or reference samples.
Ion Mode:NEGATIVE
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