Abstract
Objective
Gestational diabetes mellitus (GDM) is a type of diabetes that occurs during pregnancy which is becoming increasingly prevalent worldwide. Notably, recent studies have shown that differences in the distribution of gut microflora are strongly associated with the pathogenesis and progression of diabetes. In this study, we aim to elucidate the association between GDM pathogenesis and distribution of gut microflora by quantifying the diversity of gut microflora in women with GDM.
Methods
For the experimental and control groups, 19 patients with GDM during 24–28 weeks gestation and 19 healthy pregnant women were selected, respectively. High-throughput sequencing and bioinformatics analysis were used to characterize the V4 region of the 16S rRNA gene from various intestinal bacteria obtained via the subjects’ stool.
Results
The richness and diversity of the pregnant women’s intestinal floras were similar between the experimental and control groups. However, the structural specificities of the intestinal floras between the two groups were significantly different, with the distributions of the thick-walled and actinomycetes phyla being generally lower in the experimental group compared with the control group (x2 = 729.902, p < 0.001; x2 = 26.880, p < 0.001), whereas the distribution of the anaphyla phylum was higher in the experimental group (x2 = 428.233, p < 0.001; x2 = 545.707, p < 0.001) The abundance of genera of Bacillus, A. tumefaciens, Bifidobacterium, and Lactobacillus in the experimental samples was much lower than that in the control samples, whereas the abundance of Prevotella, Escherichia, and Clostridium was higher than in the control samples (x2 = 250,741.608, p < 0.001; x2 = 576.128, p < 0.001; x2 = 6.945, p = 0.080).
Conclusion
In this study, the abundance and diversity of the intestinal floras were similar in both women with GDM and healthy pregnant women. Conversely, the specificities of the intestinal floras were significantly different between the two groups, with a relative decrease in the abundance of Actinobacteria and thick-walled phyla and a relative increase in the abundance of Aspergillus and Bacteroides phyla.
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Acknowledgments
We thank the clinicians in this group for their perseverance and dedication, and the editors for their comments on this article.
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This research is supported by the Heilongjiang Provincial Health and Wellness Commission Research Project (No.2020–235).
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This study was approved by the Institutional Review Board (IRB) of Heilongjiang Provincial Hospital (096JY02).
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Wang, X., Bian, B., Du, F. et al. Analysis of the gut microflora in women with gestational diabetes mellitus. Int J Diabetes Dev Ctries (2023). https://doi.org/10.1007/s13410-023-01262-9
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DOI: https://doi.org/10.1007/s13410-023-01262-9