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BRIEF RESEARCH REPORT article

Front. Dent. Med.

Sec. Periodontics

Volume 6 - 2025 | doi: 10.3389/fdmed.2025.1550936

This article is part of the Research Topic Inflammaging and Periodontal Disease: Implications for Aging and Age-Related Diseases View all articles

Saccharibacteria (TM7) in saliva and subgingival microbiome as a predictor for gingivitis in individuals with type2 diabetes evaluated by qPCR

Provisionally accepted
Boy Muchlis Bachtiar Boy Muchlis Bachtiar Endang W Bachtiar Endang W Bachtiar *Dicky Levenus Tahapary Dicky Levenus Tahapary Selvi Navisa Shahab Selvi Navisa Shahab Ardy Wildan Ardy Wildan Fergie Marie Joe Grizella Runtu Fergie Marie Joe Grizella Runtu Fatimah Tadjoedin Fatimah Tadjoedin Yuniarty Soeroso Yuniarty Soeroso Dewi Ayuningtyas Dewi Ayuningtyas Natalina Haerani Natalina Haerani Turmidzi Fath Turmidzi Fath Citra Fragrantia Theodorea Citra Fragrantia Theodorea
  • University of Indonesia, Depok, Indonesia

The final, formatted version of the article will be published soon.

    Oral samples are widely used for studying oral microbiome in health and diseases. In this study, saliva and subgingival biofilm (SGB) samples obtained from patients with type2 diabetes (T2DM), without periodontitis (G1 group), with gingivitis (G2 group), and periodontitis (G3 group), were used to compare the abundance of Saccharibacteria (TM7), its host's bacteria (Schaalia odontolytica), periodontopathogen (Represented by Fusobacterium nucleatum), and nitratereducing bacteria (represented by Rothia mucilaginosa). The gingival crevicular fluid were also used to analyze the transcription levels of interleukin-6 (IL-6) and C-reactive protein (CRP).Healthy individuals' oral samples served as a control, and the targeted bacteria and inflammatory indicators were detected and measured using real-time PCR. The results showed that in either sample, the abundance of TM7 and other targeted bacteria showed a similar profile. Notably, within participants with T2DM, the abundance of TM7 was similar in G1 and G2 groups, but significantly decreased in G3 group. With the exception of the SGB of the G3 group, the relationship between TM7 and its bacterial host was strongly positive across all evaluated samples. Furthermore, CRP had higher transcription levels than IL-6 across the entire group. Despite the fact that the G3 group showed an adverse relationship between TM7 and CRP, patients with T2DM generally showed a positive correlation between TM7 and IL-6/CRP, which was verified by a receiver operating curve.

    Keywords: diabetes, Saccharibacteria, Schaalia odontolytica, Gingivitis, Periodontitis

    Received: 24 Dec 2024; Accepted: 17 Mar 2025.

    Copyright: © 2025 Bachtiar, W Bachtiar, Tahapary, Shahab, Wildan, Runtu, Tadjoedin, Soeroso, Ayuningtyas, Haerani, Fath and Theodorea. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Endang W Bachtiar, University of Indonesia, Depok, Indonesia

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

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