Maternal antimicrobial use at delivery has a stronger impact than mode of delivery on bifidobacterial colonization in infants: a pilot study

From BugSigDB
Needs review
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Imoto N, Morita H, Amanuma F, Maruyama H, Watanabe S, Hashiguchi N
Journal
Journal of perinatology : official journal of the California Perinatal Association
Year
2018
OBJECTIVE: To investigate factors related to bifidobacterial colonization in early infancy, with a focus on maternal antimicrobial use at delivery. STUDY DESIGN: A cross-sectional pilot study was performed. Feces samples of 33 Japanese healthy infants were collected over 10 months and analyzed by next-generation sequencing to examine the diversity and abundance of the gut microbiota. RESULTS: The beta diversity index of the gut microbiota differed significantly based on maternal antimicrobial use at delivery (P < 0.05). The most dominant genus was bifidobacteria, and the relative abundance of bifidobacteria in infants exposed to maternal antibiotics was significantly lower than in those who were not exposed (P < 0.05). In contrast, the delivery mode showed no significant relationship with gut microbiota diversity. CONCLUSIONS: Maternal antimicrobial use at delivery has a stronger effect than delivery mode on the gut microbiota, especially for colonization of bifidobacteria.

Experiment 1


Needs review

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Victoria

Subjects

Location of subjects
Japan
Host species Species from which microbiome was sampled. Contact us to have more species added.
Homo sapiens
Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
Feces Cow dung,Cow pat,Droppings,Dung,Excrement,Excreta,Faeces,Fecal material,Fecal matter,Fewmet,Frass,Guano,Matières fécales@fr,Merde@fr,Ordure,Partie de la merde@fr,Piece of shit,Porción de mierda@es,Portion of dung,Portion of excrement,Portion of faeces,Portion of fecal material,Portion of fecal matter,Portion of feces,Portion of guano,Portion of scat,Portionem cacas,Scat,Spoor,Spraint,Stool,Teil der fäkalien@de,Feces,feces
Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Antimicrobial agent antibiotic,antibiotics,Antibiotika,Antibiotikum,antibiotique,antimicrobial,antimicrobial agents,microbicide,microbicides,Antimicrobial agent,antimicrobial agent
Group 0 name Corresponds to the control (unexposed) group for case-control studies
without (non-Abx) use of maternal antimicrobial agents at delivery
Group 1 name Corresponds to the case (exposed) group for case-control studies
infants with (Abx)
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Healthy infants
Group 0 sample size Number of subjects in the control (unexposed) group
14
Group 1 sample size Number of subjects in the case (exposed) group
19

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V4
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
Illumina

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
relative abundances
Statistical test
Mann-Whitney (Wilcoxon)
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
0.05
MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
No

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
increased
Chao1 Abundance-based estimator of species richness
unchanged

Signature 1

Needs review

Curated date: 2021/01/10

Curator: Mst Afroza Parvin

Revision editor(s): WikiWorks

Source: Table 2

Description: Relative abundance of the six most common bacterial genera in all infants (n = 33) and in those with and without use of maternal antibiotics and with Cesarean or vaginal delivery

Abundance in Group 1: decreased abundance in infants with (Abx)

NCBI Quality ControlLinks
Bifidobacterium

Revision editor(s): WikiWorks

Experiment 2


Needs review

Curated date: 2024/03/10

Curator: Scholastica

Revision editor(s): Scholastica, Omojokunoluwatomisin

Differences from previous experiment shown

Subjects

Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Not specified
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Healthy infant not exposed to maternal antimicrobial
Group 1 name Corresponds to the case (exposed) group for case-control studies
Healthy infant exposed to maternal antimicrobial
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
An infant or baby is the very young offspring of human beings. A newborn is, in colloquial use, an infant who is only hours, days, or up to one month old.

Lab analysis

16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V2-V4

Statistical Analysis

Statistical test
ANOSIM
Mann-Whitney (Wilcoxon)
Spearman Correlation
T-Test

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
increased
Chao1 Abundance-based estimator of species richness
unchanged

Signature 1

Needs review

Curated date: 2024/03/11

Curator: Omojokunoluwatomisin

Revision editor(s): Omojokunoluwatomisin

Source:

Description:

Abundance in Group 1:
NCBI Quality ControlLinks

Revision editor(s): Omojokunoluwatomisin

Signature 2

Needs review

Curated date: 2024/03/11

Curator: Omojokunoluwatomisin

Revision editor(s): Omojokunoluwatomisin

Source:

Description:

Abundance in Group 1:
NCBI Quality ControlLinks

Revision editor(s): Omojokunoluwatomisin