Evidence map›Paper›PMID 39901086›Full record

ArticleBMC pregnancy and childbirth2025

Higher gut Bacteroidetes and Actinobacteria population in early pregnancy is associated with lower risk of gestational diabetes in the second trimester.

Seyedeh Neda Mousavi, Navid Momeni, Hossein Chiti, Howra Mahmoodnasab, Mohammad Ahmadi, Siamak Heidarzadeh

Abstract read
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Article in BMC pregnancy and childbirth, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
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10citing papers in PubMed, 1 pooled it
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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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

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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

6 authors.

Seyedeh Neda MousaviZanjan Metabolic Diseases Research Center, Health and Metabolic Diseases Research Institute , Zanjan University of Medical Sciences, Zanjan, Iran. neda.mousavi@zums.ac.ir.
Navid MomeniZanjan Metabolic Diseases Research Center, Health and Metabolic Diseases Research Institute , Zanjan University of Medical Sciences, Zanjan, Iran.
Hossein ChitiZanjan Metabolic Diseases Research Center, Health and Metabolic Diseases Research Institute , Zanjan University of Medical Sciences, Zanjan, Iran.
Howra MahmoodnasabDepartment of Nutrition, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran.
Mohammad AhmadiDepartment of Nutrition, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran.
Siamak HeidarzadehDepartment of Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite the association between the gut dysbiosis and metabolic disorders, the main bacterial phylum in the first trimester of pregnancy that predisposes mothers to gestational diabetes mellitus (GDM) in the second trimester is not clear around the world. MATERIALS AND

methodsThree-hundred healthy women aged 18-40 years who were in the first trimester were participated in this cohort study and followed to the screening time for GDM diagnosis (in 24-28 weeks of pregnancy). Stool samples were gathered in the first trimester. GDM was diagnosed based on the International Association of Diabetes and Pregnancy Groups. In total, thirty mothers were diagnosed with GDM. Controls (N = 60) were selected from non-GDM participants matching to the GDM in terms of pre-pregnancy weight, weight gain, dietary intake and familial history of diabetes. The dominant phylum population was determined based on 16SrRNA gene expression.

resultsMothers with lower Bacteroidetes and Actinobacteria population in the first trimester were more susceptible to GDM in the screening time (p < 0.001 and p < 0.001). The Firmicutes to Bacteroidetes ratio was significantly higher in mothers with GDM than the controls (p < 0.001). A significant negative correlation was observed between the gut Bacteroidetes (p < 0.001, p < 0.001, p < 0.001) and Actinobacteria (p = 0.004, p < 0.001, p = 0.02) population in the first trimester with the the serum FBS, 1 h-PG and 2 h-PG levels in the screening time. However, the gut Firmicutes to Bacteroidetes ratio (p = 0.003, p = 0.01) showed a significant positive correlation with serum FBS and 1 h-PG levels.

conclusionsA higher Bacteroidetes and Actinobacteria population in the gut of mothers at the first trimester was associated with lower risk of GDM in the screening time. Higher Firmicutes to Bacteroidetes ratio in the gut of mothers was associated with fasting and 1-h glucose intolerance in the screening time.

Indexed as

ActinobacteriaBacteroidetesDiabetes, GestationalGastrointestinal MicrobiomeAdolescentAdultCase-Control StudiesCohort StudiesDysbiosisFecesFemaleHumansPregnancyPregnancy Trimester, FirstPregnancy Trimester, SecondRisk FactorsGestational diabetesGutPhylumPregnancy

Identifiers

PMID39901086
PMCPMC11789361

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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.