journal article·2021-06-06Open access

The Role of Epigenetics in Periodontal and Systemic Diseases and Smoking: A Systematic Review

Ismael Khouly, Rosalie Salus Braun, Michelle Ordway, Iya Ghassib, Lena Larsson, Farah Asa’ad

Applied Sciences· Volume 11· Issue 11

Abstract

The aims of this systematic review were to identify and synthesize the evidence for an association in DNA methylation/histone modifications between periodontal diseases and systemic diseases/smoking. Electronic database searches using relevant search terms in PubMed, Embase, MEDLINE, CINAHL, Web of Science, Scopus, and SciELO, and manual searches, were independently conducted to identify articles meeting the inclusion criteria. Nine studies of 1482 participants were included. Periodontitis was compared to metabolic disorders, rheumatoid arthritis (RA), cancer, and smokers, as well as healthy controls. Substantial variation regarding the reporting of sample sizes and patient characteristics, statistical analyses, and methodology was found. IL6 and TNF were modified similarly in RA and periodontitis. While TIMP-3 and GSTP-1 were significantly lower in periodontitis patients and controls than in cancer, SOCS-1, RMI2, CDH1, and COX2 were modified similarly in both cancer and periodontitis. While TLR4 in and CXCL8 were affected in periodontitis independent of smoking habit, smoking might change the transcription and methylation states of ECM organization-related genes, which exacerbated the periodontal condition. There was some evidence, albeit inconsistent, for an association between DNA methylation and periodontal diseases and systemic diseases or smokers compared to healthy patients or non-smokers.
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Research context

OpenAlex topics: Oral microbiology and periodontitis research · Epigenetics and DNA Methylation · Pediatric health and respiratory diseases

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Oral and Maxillofacial Surgery, College of Dentistry, New York University, New York, NY 10010, USA

Department of Cariology and Comprehensive Care, College of Dentistry, New York University, New York, NY 10010, USA

Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA

Department of Periodontics and Oral Medicine, University of Michigan, Ann Arbor, MI 48104, USA

Department of Periodontology, Institute of Odontology, The Sahlgrenska Academy at University of Gothenburg, SE-405 30 Göteborg, Sweden

Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy at University of Gothenburg, SE-405 30 Göteborg, Sweden

Department of Oral Biochemistry, Institute of Odontology, The Sahlgrenska Academy at University of Gothenburg, SE-405 30 Göteborg, Sweden

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