Evidence map›Paper›PMID 42552739›Full record

ArticleGut microbes2026

Early-life microbiota in the LIMIT cohort: unveiling meconium microbiota types beyond maternal lifestyle.

Dana El Masri, Niccolò Meriggi, Federica Loperfido, Irene Bianco, Chiara Ferrara, Beatrice Maccarini, Francesca Sottotetti, Carlotta De Filippo, Nicolò Loddo, Rosa Maria Cerbo and 8 more

Abstract read
In one paragraph

Article in Gut microbes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

18 authors.

Dana El MasriLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Niccolò MeriggiInstitute of Agricultural Biology and Biotechnology (IBBA), National Research Council (CNR), Pisa, Italy.
Federica LoperfidoLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.ORCID 0000-0003-4138-7793
Irene BiancoLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Chiara FerraraLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Beatrice MaccariniLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Francesca SottotettiLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Carlotta De FilippoInstitute of Agricultural Biology and Biotechnology (IBBA), National Research Council (CNR), Pisa, Italy.ORCID 0000-0002-2222-6524
Nicolò LoddoUniversity of Pavia, Pavia, Italy.
Rosa Maria CerboUniversity of Pavia, Pavia, Italy.
Stefano GhirardelloUniversity of Pavia, Pavia, Italy.
Francesca GarofoliUniversity of Pavia, Pavia, Italy.
Micol AngeliniUniversity of Pavia, Pavia, Italy.
Maria Cristina MontiUnit of Biostatistics and Clinical Epidemiology, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Mulubirhan Assefa AlemayohuUnit of Biostatistics and Clinical Epidemiology, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Mie Bech LukassenDNASense (Cmbio), Aalborg Øst, Denmark.
Hellas CenaLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.ORCID 0000-0002-5752-6199
Rachele De GiuseppeLaboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.ORCID 0000-0002-5583-7735

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionEarly gut microbiota development plays an important role in lifelong human health, and meconium offers a unique matrix to understand prenatal microbial exposures. This study from the LIMIT cohort aimed at investigating associations between maternal pre-pregnancy body mass index (pre-BMI) and gestational weight gain (GWG), as well as other maternal lifestyle and environmental factors, with the structure of meconium microbiota at delivery.

methodsTwo hundred pregnant women were enrolled during the pre-hospital care before birth at Fondazione IRCCS Policlinico San Matteo (Pavia), according to the inclusion/exclusion criteria. Mothers were grouped based on their GWG gain category according to the IOM guidelines. 168 meconium samples were analyzed using a targeted long-reads sequence approach. Bacterial 16S rRNA (V1-V8) amplicons were sequenced using the Oxford Nanopore PromethION platform. Supervised analyses assessed associations between maternal variables and bacterial diversity, while an unsupervised learning approach based on the Partitioning Around Medoids (PAM) clustering algorithm was applied to identify specific microbial clusters unrelated to the cohort's metadata.

resultsNo significant associations were observed between GWG, pre-BMI or other lifestyle factors and overall microbial diversity. Unsupervised learning revealed five distinct meconium microbial clusters, i.e. "microbiota-types", related to different taxonomic profiles, determined by the variations in specific bacterial species.

conclusionNo significant influence of the studied variables was observed on meconium microbiota. However, the meconium microbial communities appear to organize into enterotype-like structures, highlighting the need for longitudinal studies to identify key determinants of early colonization.

Indexed as

BacteriaGastrointestinal MicrobiomeMeconiumAdultBody Mass IndexCohort StudiesFemaleGestational Weight GainHumansInfant, NewbornLife StylePregnancyRNA, Ribosomal, 16SRNA, Ribosomal, 16S16S rRNA sequencingEarly gut microbiotagestational weight gainlifestyle factorsmeconium analysispre-pregnancy BMIunsupervised analysis

Identifiers

PMID42552739
PMCPMC13449723

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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.