Evidence map›Paper›PMID 35379843›Full record

ArticleScientific reports2022

The human milk microbiome aligns with lactation stage and not birth mode.

Katriona E Lyons, Carol-Anne O ' Shea, Ghjuvan Grimaud, C Anthony Ryan, Eugene Dempsey, Alan L Kelly, R Paul Ross, Catherine Stanton

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
6.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 55 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Katriona E LyonsTeagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland.
Carol-Anne O ' SheaAPC Microbiome Ireland, University College Cork, Cork, Ireland.
Ghjuvan GrimaudTeagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland.
C Anthony RyanAPC Microbiome Ireland, University College Cork, Cork, Ireland.
Eugene DempseyAPC Microbiome Ireland, University College Cork, Cork, Ireland.
Alan L KellySchool of Food and Nutritional Sciences, University College Cork, Cork, Ireland.
R Paul RossAPC Microbiome Ireland, University College Cork, Cork, Ireland.
Catherine StantonTeagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland. catherine.stanton@teagasc.ie.
University College Cork · IEAPC Microbiome Institute · IETeagasc - The Irish Agriculture and Food Development Authority · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We analysed the human milk microbiome in a cohort of 80 lactating women and followed the dynamics in taxa over the course of lactation from birth to 6 months. Two hundred and thirty one milk samples were collected from full-term lactating women at 1, 4, 8 and 24 weeks following birth and analysed for microbiota composition using 16S rRNA sequencing. A significant decrease in milk microbiota diversity was observed throughout the first 6 months of lactation, with the greatest difference seen between week 8 and week 24. Nine genera predominated in milk over lactation from week 1 to week 24, comprising of Staphylococcus, Streptococcus, Pseudomonas, Acinetobacter, Bifidobacterium, Mesorhizobium, Brevundimonas, Flavobacterium, and Rhodococcus; however, fluctuations in these core genera were apparent over time. There was a significant effect of stage of lactation on the microbiome, while no effect of birth mode, infant sex and maternal BMI was observed throughout lactation. Streptococcus had the highest mean relative abundance at week 1 and 24 (17.3% and 24% respectively), whereas Pseudomonas predominated at week 4 (22%) and week 8 (19%). Bifidobacterium and Lactobacillus had the highest mean relative abundance at week 4 (5% and 1.4% respectively), and occurred at a relative abundance of ≤ 1% at all other time points. A decrease in milk microbiota diversity throughout lactation was also observed. This study concluded that lactation stage was the primary driving factor in milk microbiota compositional changes over lactation from birth to 6 months, while mode of delivery was not a factor driving compositional changes throughout human lactation.

Indexed as

MicrobiotaMilk, HumanBreast FeedingFemaleHumansInfantLactationRNA, Ribosomal, 16SRNA, Ribosomal, 16S

Identifiers

PMID35379843
PMCPMC8979980
OpenAlexW4225918604

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.