Diversified microbiota of meconium is affected by maternal diabetes status

From BugSigDB
Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Hu J, Nomura Y, Bashir A, Fernandez-Hernandez H, Itzkowitz S, Pei Z, Stone J, Loudon H, Peter I
Journal
PloS one
Year
2013
OBJECTIVES: This study was aimed to assess the diversity of the meconium microbiome and determine if the bacterial community is affected by maternal diabetes status. METHODS: The first intestinal discharge (meconium) was collected from 23 newborns stratified by maternal diabetes status: 4 mothers had pre-gestational type 2 diabetes mellitus (DM) including one mother with dizygotic twins, 5 developed gestational diabetes mellitus (GDM) and 13 had no diabetes. The meconium microbiome was profiled using multi-barcode 16S rRNA sequencing followed by taxonomic assignment and diversity analysis. RESULTS: All meconium samples were not sterile and contained diversified microbiota. Compared with adult feces, the meconium showed a lower species diversity, higher sample-to-sample variation, and enrichment of Proteobacteria and reduction of Bacteroidetes. Among the meconium samples, the taxonomy analyses suggested that the overall bacterial content significantly differed by maternal diabetes status, with the microbiome of the DM group showing higher alpha-diversity than that of no-diabetes or GDM groups. No global difference was found between babies delivered vaginally versus via Cesarean-section. Regression analysis showed that the most robust predictor for the meconium microbiota composition was the maternal diabetes status that preceded pregnancy. Specifically, Bacteroidetes (phyla) and Parabacteriodes (genus) were enriched in the meconium in the DM group compared to the no-diabetes group. CONCLUSIONS: Our study provides evidence that meconium contains diversified microbiota and is not affected by the mode of delivery. It also suggests that the meconium microbiome of infants born to mothers with DM is enriched for the same bacterial taxa as those reported in the fecal microbiome of adult DM patients.

Experiment 1


Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Victoria

Subjects

Location of subjects
United States of America
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
Meconium Meconium,meconium
Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Type II diabetes mellitus adult onset diabetes,Adult-Onset Diabetes,adult-onset diabetes,Adult-Onset Diabetes Mellitus,diabetes mellitis type 2,diabetes mellitis type II,DIABETES MELLITUS TYPE 02,diabetes mellitus type 2,Diabetes Mellitus, Adult Onset,Diabetes Mellitus, Adult-Onset,Diabetes Mellitus, Ketosis Resistant,Diabetes Mellitus, Ketosis-Resistant,Diabetes Mellitus, Maturity Onset,Diabetes Mellitus, Maturity-Onset,Diabetes Mellitus, Non Insulin Dependent,Diabetes Mellitus, Non-Insulin-Dependent,Diabetes Mellitus, Noninsulin Dependent,diabetes mellitus, noninsulin-dependent,Diabetes Mellitus, Slow Onset,Diabetes Mellitus, Slow-Onset,Diabetes Mellitus, Stable,Diabetes Mellitus, Type 2,diabetes mellitus, type 2,diabetes mellitus, type 2, protection against,Diabetes Mellitus, Type II,Diabetes, Type 2,diabetes, type 2,insulin resistance, susceptibility to,Ketosis-Resistant Diabetes Mellitus,Maturity Onset Diabetes Mellitus,maturity-onset diabetes,Maturity-Onset Diabetes Mellitus,MODY,NIDDM,Non-Insulin Dependent Diabetes,non-insulin dependent diabetes,Non-Insulin Dependent Diabetes Mellitus,non-insulin dependent diabetes mellitus,non-insulin-dependent diabetes mellitus,noninsulin dependent diabetes,noninsulin-dependent diabetes mellitus,Slow-Onset Diabetes Mellitus,Stable Diabetes Mellitus,T2DM - Type 2 Diabetes mellitus,T2DM - type 2 diabetes mellitus,Type 2 Diabetes,type 2 diabetes,Type 2 Diabetes Mellitus,type 2 diabetes mellitus,Type 2 Diabetes Mellitus Non-Insulin Dependent,type 2 diabetes mellitus non-insulin dependent,Type II Diabetes,type II diabetes,type II diabetes mellitus,Type II diabetes mellitus
Group 0 name Corresponds to the control (unexposed) group for case-control studies
adult stool
Group 1 name Corresponds to the case (exposed) group for case-control studies
Healthy baby meconium
Group 0 sample size Number of subjects in the control (unexposed) group
9
Group 1 sample size Number of subjects in the case (exposed) group
13
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
9 months

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V3-V4
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
PacBio RS

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)?
Yes


Signature 1

Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09

Curated date: 2021/01/10

Curator: Rimsha Azhar

Revision editor(s): WikiWorks

Source: Text + Figure 2

Description: Bacterial Composition of the Meconium and Comparison to the healthy Adult and healthy Infant Microbiome

Abundance in Group 1: increased abundance in Healthy baby meconium

NCBI Quality ControlLinks
Pseudomonadota
Comamonadaceae
Enterobacteriaceae
Comamonas
Escherichia
Klebsiella
Proteus
Shigella

Revision editor(s): WikiWorks

Signature 2

Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09

Curated date: 2021/01/10

Curator: Rimsha Azhar

Revision editor(s): WikiWorks

Source: Text + Figure 2

Description: Bacterial Composition of the Meconium and Comparison to the healthy Adult and healthy Infant Microbiome

Abundance in Group 1: decreased abundance in Healthy baby meconium

NCBI Quality ControlLinks
Bacteroidota
Bacillota
Verrucomicrobiota
Bacteroidaceae
Lachnospiraceae
Oscillospiraceae
Veillonellaceae

Revision editor(s): WikiWorks

Experiment 2


Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Victoria

Differences from previous experiment shown

Subjects

Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Gestational diabetes diabetes in pregnancy,GDM,gestational diabetes,gestational diabetes mellitus,maternal gestational diabetes mellitus,Gestational diabetes
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Healthy baby meconium
Group 1 name Corresponds to the case (exposed) group for case-control studies
Baby meconium with GDM mothers
Group 0 sample size Number of subjects in the control (unexposed) group
13
Group 1 sample size Number of subjects in the case (exposed) group
5

Lab analysis

Statistical Analysis

MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
No


Signature 1

Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09

Curated date: 2021/01/10

Curator: Rimsha Azhar

Revision editor(s): WikiWorks

Source: Text + Figure 4

Description: Significant difference between neonates from mothers with different diabetes states

Abundance in Group 1: decreased abundance in Baby meconium with GDM mothers

NCBI Quality ControlLinks
Betaproteobacteria
Brucellaceae
Alcaligenaceae
Comamonadaceae
Xanthobacteraceae
Alcaligenes
Cupriavidus
Comamonas
Delftia
Stenotrophomonas

Revision editor(s): WikiWorks

Experiment 3


Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Victoria

Differences from previous experiment shown

Subjects

Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
Type II diabetes mellitus adult onset diabetes,Adult-Onset Diabetes,adult-onset diabetes,Adult-Onset Diabetes Mellitus,diabetes mellitis type 2,diabetes mellitis type II,DIABETES MELLITUS TYPE 02,diabetes mellitus type 2,Diabetes Mellitus, Adult Onset,Diabetes Mellitus, Adult-Onset,Diabetes Mellitus, Ketosis Resistant,Diabetes Mellitus, Ketosis-Resistant,Diabetes Mellitus, Maturity Onset,Diabetes Mellitus, Maturity-Onset,Diabetes Mellitus, Non Insulin Dependent,Diabetes Mellitus, Non-Insulin-Dependent,Diabetes Mellitus, Noninsulin Dependent,diabetes mellitus, noninsulin-dependent,Diabetes Mellitus, Slow Onset,Diabetes Mellitus, Slow-Onset,Diabetes Mellitus, Stable,Diabetes Mellitus, Type 2,diabetes mellitus, type 2,diabetes mellitus, type 2, protection against,Diabetes Mellitus, Type II,Diabetes, Type 2,diabetes, type 2,insulin resistance, susceptibility to,Ketosis-Resistant Diabetes Mellitus,Maturity Onset Diabetes Mellitus,maturity-onset diabetes,Maturity-Onset Diabetes Mellitus,MODY,NIDDM,Non-Insulin Dependent Diabetes,non-insulin dependent diabetes,Non-Insulin Dependent Diabetes Mellitus,non-insulin dependent diabetes mellitus,non-insulin-dependent diabetes mellitus,noninsulin dependent diabetes,noninsulin-dependent diabetes mellitus,Slow-Onset Diabetes Mellitus,Stable Diabetes Mellitus,T2DM - Type 2 Diabetes mellitus,T2DM - type 2 diabetes mellitus,Type 2 Diabetes,type 2 diabetes,Type 2 Diabetes Mellitus,type 2 diabetes mellitus,Type 2 Diabetes Mellitus Non-Insulin Dependent,type 2 diabetes mellitus non-insulin dependent,Type II Diabetes,type II diabetes,type II diabetes mellitus,Type II diabetes mellitus
Group 1 name Corresponds to the case (exposed) group for case-control studies
Baby meconium with DM mothers

Lab analysis

Statistical Analysis

Signature 1

Reviewed Marked as Reviewed by Fatima on 2021/07/16

Curated date: 2021/01/10

Curator: Rimsha Azhar

Revision editor(s): Lwaldron, WikiWorks

Source: Text + Figure 4

Description: Significant difference between neonates from mothers with different diabetes states

Abundance in Group 1: increased abundance in Baby meconium with DM mothers

NCBI Quality ControlLinks
Acetobacteraceae
Acidaminococcus
Arsenicicoccus
Atopobium
Bacteroidaceae
Bacteroidota
Bacteroidia
Bifidobacteriaceae
Bifidobacterium
Butyricimonas
Catenibacterium
Collinsella
Coprococcus
Coriobacteriaceae
Dermabacteraceae
Dialister
Dorea
Dysgonomonas
Erysipelotrichaceae
Erysipelotrichia
Eubacteriaceae
Eubacterium
Gemella
Gordonia
Holdemania
Kocuria
Lachnospiraceae
Microbacterium
Modestobacter
Oscillibacter
Parabacteroides
Phyllobacteriaceae
Planomicrobium
Porphyromonadaceae
Porphyromonas
Prevotella
Roseburia
Roseomonas
Ruminococcus
Turicibacter
Veillonellaceae

Revision editor(s): Lwaldron, WikiWorks