Infant gut microbiome succession with NEC, Pittsburgh cohort
Early-life metagenomes from human infant fecal samples with matched maternal sample
819 fecal samples from infants and neonates (with matched maternal samples) at Magee-Womens Hospital of UPMC, Pittsburgh, including healthy controls and necrotizing enterocolitis cases, in a longitudinal cohort design. machine-written summary
Sequencing depth per sample · this project all projects
Sampling design and relatedness
longitudinalmother–infant
81 of 95 people sampled more than once (805 samples; median 11, up to 24 per person) · follow-up median 2.9 y (max 3.6 y) · median interval between samples 2 mo(time from age at collection).
Schedule stated by the source: “archive time labels: year 3, near birth, DOL 31, DOL 61, DOL 122, DOL 64, DOL 92, DOL 30” (time origin: birth).
Each row is one person (36 shown of 81); dots are samples at days since that person's first sample; rows of one family are adjacent and coloured by role (mother, father, child, twin).
43 mother–infant families (84 maternal stools near birth / near year 3); 9 further infants without a maternal sample · 43 families with 86 sampled people (43 with a parent and a child).
43 × mother + child
motherchild · circles are people (pale = no sequenced sample), arrows run donor → recipient and parent → child, curved lines join twins, partners and siblings, squares are shared settings or families without recorded roles. Shown: 24 of 43 families (one per family structure, then more). 95 people in the project overall.
Bifidobacterium 17.9%Bacteroides 8.0%Klebsiella 6.2%Phocaeicola 4.9%Escherichia 4.6%Enterobacter 4.3%Faecalibacterium 3.2%Veillonella 3.0%Blautia_A 2.8%Clostridium 2.8%Mediterraneibacter 2.3%Sarcina 2.1%not assigned to a genus 2.5%other genera 35.4%
Genera, mean relative abundance over 743 profiled gut samples of this project (Sandpiper SingleM profiles, GTDB R232; low-depth and non-metagenome profiles left out).
Infant gut strain persistence is associated with maternal origin, phylogeny, and traits including surface adhesion and iron acquisition. PMID 34622230PMC8484513curated
Designation of optimal reference strains representing the infant gut bifidobacterial species through a comprehensive multi-omics approach. PMID 36123315PMC10092070curated
Infant microbiome cultivation and metagenomic analysis reveal Bifidobacterium 2'-fucosyllactose utilization can be facilitated by coexisting species. PMID 37973815PMC10654741curated
Species- and subspecies-level characterization of health-associated bacterial consortia that colonize the human gut during infancy. PMID 39428758PMC11497992curated
1 more
The Gut Resistome Atlas in Preterm Infants Enables Prediction of Necrotizing Enterocolitis Onset. PMID 41025564PMC12677589
Details
Archive description
Using genome-resolved metagenomics to investigate the early-life gut microbiome succession at the strain-level.
How this project entered the registry
Classified as human gut / stool shotgun DNA metagenome of infant / toddler and adult by deterministic_prior with confidence 0.90. Assay shotgun_dna.
body sitestudy.title · “from human infant fecal samples with matched”
body sitestudy.description · “investigate the early-life gut microbiome succession at”
life stageexternal_curation.infant_catalog · “infant triage verdict include (0-3 y scope)”
life stagestudy.title · “Early-life metagenomes from human”
life stagestudy.title · “samples with matched maternal sample”
Evidence examples (one per field × route)
sample
field
value
route
conf.
source
quote
SAMN17763787
age_at_collection_days
29
R1
0.85
sample.title
DOL 29
SAMN37313719
age_at_collection_days
1339.0
R1
0.70
biosample.attribute:isolation_source
isolation_source: Gut sample from infant #21 DOL 1339
SAMN17763787
antibiotic_exposure
no
R2
0.75
paper.supp.table
Infant antibiotics=no
SAMN17763787
birth_weight_grams
3130
R2
0.75
paper.supp.table
Birth weight (gram)=3130
SAMN17763786
country
US
R1
0.90
biosample_attr
USA: Pittsburgh, Magee-Womens Hospital of UPMC
SAMN17763787
delivery_mode
c_section
R2
0.75
paper.supp.table
Delivery mode=CS
SAMN17763786
family_id
infant_7
R1
0.85
biosample.attribute:TITLE
Mother of infant #7
SAMN17763786
family_role
mother
R1
0.85
biosample.attribute:TITLE
Mother of infant #7
SAMN17763787
gestational_age_weeks
38.0
R2
0.75
paper.supp.table
Gestational age (weeks)=38
SAMN17763801
health_condition
healthy_control
R2
0.70
paper.supp.table
PreNEC=noNEC
SAMN17763802
nec_status
no
R2
0.75
paper.supp.table
PreNEC=noNEC
SAMN17763787
sex
female
R2
0.75
paper.supp.table
Gender=female
SAMN17763787
subject_id
7
R1
0.70
sample.title
Infant #7 DOL 29
SAMN17763786
subject_id
mother_of_infant_7
R2
0.80
archive
SAMN17763787
timepoint_label
DOL 29
R1
0.70
sample.title
Infant #7 DOL 29
SAMN37313766
timepoint_label
near birth
R1
0.70
biosample.attribute:isolation_source
isolation_source: Gut sample from the mother of infant #40 near birth
Sequencing
850 runs over 819 samples · mean 9.74 Gbp per run (median 10.10 Gbp, total 8,283.20 Gbp; 850 runs with a base count) · layout PAIRED 850 · platform ILLUMINA 850 · models Illumina NovaSeq 6000 (850) · 90% of runs with a Sandpiper profile · first public 2021-02-04 – 2023-09-10