The early infant gut microbiome varies in association with a maternal high-fat diet
From BugSigDB
Jump to:navigation, search
Study information
-
Quality control
- Retracted paper
- Contamination issues suspected
- Batch effect issues suspected
- Uncontrolled confounding suspected
- Results are suspect (various reasons)
- Tags applied
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Chu DM, Antony KM, Ma J, Prince AL, Showalter L, Moller M, Aagaard KM
Journal
Genome medicine
Year
2016
Keywords:
High-fat diet, Maternal gestational diet, Microbiome, Neonatal microbiome development
BACKGROUND: Emerging evidence suggests that the in utero environment is not sterile as once presumed. Work in the mouse demonstrated transmission of commensal bacteria from mother to fetus during gestation, though it is unclear what modulates this process. We have previously shown in the nonhuman primate that, independent of obesity, a maternal high-fat diet during gestation and lactation persistently shapes the juvenile gut microbiome. We therefore sought to interrogate in a population-based human longitudinal cohort whether a maternal high-fat diet similarly alters the neonatal and infant gut microbiome in early life. METHODS: A representative cohort was prospectively enrolled either in the early third trimester or intrapartum (n = 163), with a subset consented to longitudinal sampling through the postpartum interval (n = 81). Multiple body site samples, including stool and meconium, were collected from neonates at delivery and by 6 weeks of age. A rapid dietary questionnaire was administered to estimate intake of fat, added sugars, and fiber over the past month (National Health and Examination Survey). DNA was extracted from each infant meconium/stool sample (MoBio) and subjected to 16S rRNA gene sequencing and analysis. RESULTS: On average, the maternal dietary intake of fat ranged from 14.0 to 55.2 %, with an average intake of 33.1 % (σ = 6.1 %). Mothers whose diets significantly differed from the mean (±1 standard deviation) were separated into two distinct groups, a control group (n = 13, μ = 24.4 %) and a high-fat group (n = 13, μ = 43.1 %). Principal coordinate analysis revealed that the microbiome of the neonatal stool at birth (meconium) clustered differently by virtue of maternal gestational diet (PERMANOVA p = 0.001). LEfSe feature selection identified several taxa that discriminated the groups, with a notable relative depletion of Bacteroides in the neonates exposed to a maternal high-fat gestational diet (Student's t-test, p < 0.05) that persisted to 6 weeks of age. CONCLUSIONS: Similar to the primate, independent of maternal body mass index, a maternal high-fat diet is associated with distinct changes in the neonatal gut microbiome at birth which persist through 4-6 weeks of age. Our findings underscore the importance of counseling pregnant mothers on macronutrient consumption during pregnancy and lactation.
Experiment 1
Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09
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
- High fat diet HF - High fat diet,High fat diet (finding),High fat diet,high fat diet
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- nebowrns of maternal control
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- newborns of maternal high-fat diet
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- To determine maternal dietary intake during pregnancy, each mother was asked by trained personnel at each sample collection time point to answer the Dietary Screener Questionnaire (DSQ), which was developed and validated by the National Health and Examination Survey (NHANES) program (2009–2010)
- 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
- 13
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V3-V5
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- Roche454
Statistical Analysis
- Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
- relative abundances
- Statistical test
- LEfSe
- 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
Signature 1
Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09
Source: Figure 4
Description: Neonaatal meconium identified by LEfSe betwen maternal high-fat or maternal control diet during pregnancy
Abundance in Group 1: increased abundance in newborns of maternal high-fat diet
| NCBI | Quality Control | Links |
|---|---|---|
| Lactococcus | ||
| Granulicatella | ||
| Enterococcus |
Revision editor(s): WikiWorks
Signature 2
Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09
Source: Figure 4
Description: Neonaatal meconium identified by LEfSe betwen maternal high-fat or maternal control diet during pregnancy
Abundance in Group 1: decreased abundance in newborns of maternal high-fat diet
| NCBI | Quality Control | Links |
|---|---|---|
| Sutterella | ||
| Parabacteroides | ||
| Bacteroides | ||
| Comamonas |
Revision editor(s): WikiWorks
Experiment 2
Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09
Differences from previous experiment shown
Subjects
- 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
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- 6 months babies control
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- 6 months babies of maternal high-fat diet
- Group 0 sample size Number of subjects in the control (unexposed) group
- 75
- Group 1 sample size Number of subjects in the case (exposed) group
- 75
Lab analysis
Statistical Analysis
Signature 1
Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09
Source: Figure 5 + Supplemental Figure 3
Description: The impact of maternal gestational diet persists to 6 weeks of age
Abundance in Group 1: increased abundance in 6 months babies of maternal high-fat diet
| NCBI | Quality Control | Links |
|---|---|---|
| Streptococcus | ||
| Escherichia |
Revision editor(s): WikiWorks
Signature 2
Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09
Source: Figure 5 + Supplemental Figure 3
Description: The impact of maternal gestational diet persists to 6 weeks of age
Abundance in Group 1: decreased abundance in 6 months babies of maternal high-fat diet
| NCBI | Quality Control | Links |
|---|---|---|
| Bacteroides |
Revision editor(s): WikiWorks
Retrieved from "https://bugsigdb.org/w/index.php?title=Study_58&oldid=82601"
