Periodontitis in elderly patients with type 2 diabetes mellitus: impact on gut microbiota and systemic inflammation.

Abstract:

:Elderly patients with type 2 diabetes mellitus (T2DM) exhibit considerable periodontitis frequency, which causes tooth loss and poor quality of life. To investigate the impact of periodontitis on gut microbiota, we used 16S rRNA amplicon sequencing to characterize the composition and structure of gut microbiota among elderly patients with T2DM and periodontitis (T2DM_P), elderly patients with T2DM alone (T2DM_NP), and healthy volunteers. We identified 34 key gut microbiota markers that distinguished participants with different periodontal conditions and investigated their connections to other gut bacteria, as well as their clinical correlates. The most striking differences in co-occurrence networks between the T2DM_P and T2DM_NP groups comprised interactions involving dominant genera in the oral cavity (i.e., Streptococcus and Veillonella). Of the 34 identified key gut microbiota markers that distinguished participants with different periodontal conditions, 25 taxa were correlated with duration of diabetes, dry mouth or the peripheral levels of pro-inflammatory cytokines (e.g., tumor necrosis factor-α, interferon-γ, prostaglandin E2, interleukin-17, and interleukin-6) and metabolic parameters (e.g., hemoglobin A1c), respectively. Our findings suggest that gut microbial shifts driven by periodontitis may contribute to systemic inflammation and metabolic dysfunction during the progression of T2DM.

journal_name

Aging (Albany NY)

journal_title

Aging

authors

Li J,Lu H,Wu H,Huang S,Chen L,Gui Q,Zhou W,Yang Y,Wu Y,Zhang H,Zhang Q,Yang Y

doi

10.18632/aging.202174

subject

Has Abstract

pub_date

2020-11-25 00:00:00

pages

25956-25980

issue

24

issn

1945-4589

pii

202174

journal_volume

12

pub_type

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