Inflammatory responses in periodontitis with or without rheumatoid arthritis alter salivary metallothionein and zinc

Aziz, Jazli and Vaithilingam, Rathna Devi and Radzi, Zamri and Rahman, Mohammad Tariqur (2023) Inflammatory responses in periodontitis with or without rheumatoid arthritis alter salivary metallothionein and zinc. Biological Trace Element Research, 201 (7). pp. 3162-3174. ISSN 0163-4984, DOI https://doi.org/10.1007/s12011-022-03416-y.

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Abstract

Periodontitis (PD) and rheumatoid arthritis (RA) are causally linked by their common inflammatory responses, yet it is largely unknown if these inflammatory responses might have an impact on salivary metallothionein (MT), zinc (Zn), and calcium (Ca) content. In this study, we analysed salivary concentrations of pro-inflammatory (IFN-gamma, IL-6, and IL-17) and anti-inflammatory (IL-4 and IL-10) cytokines, as well as MT, Zn, and Ca in four groups of participants, namely control (without PD or RA, n = 21), PD (n = 21), RA (n = 21), or RAPD (n = 19). As expected, an increased amount of salivary pro-inflammatory cytokines were observed in the PD, RA, and RAPD groups. While Ca concentration was not significantly different between the groups, Zn concentration was lower in the PD, RA, and RAPD groups compared to the control group (p < 0.05). These groups also expressed higher MT/Zn ratios compared to the control group (p < 0.05). Unlike the control group, concentrations of inflammatory cytokines, MT, Zn, and Ca correlated with each other in the PD, RA, and RAPD groups (p < 0.05). Additionally, comorbidity of PD and RA appears to have a cumulative immuno-pathological impact that warrants further investigation. This study suggests that, in addition to inflammatory cytokines, salivary MT and Zn could reflect the severity of PD with or without RA, hence providing an important biomarker for diagnosis.

Item Type: Article
Funders: Ministry of Higher Education, Malaysia
Uncontrolled Keywords: Cytokines; Inflammation; Infection; Oral health; Dentistry
Subjects: R Medicine > RK Dentistry
Divisions: Faculty of Dentistry
Depositing User: Ms Zaharah Ramly
Date Deposited: 28 Nov 2023 03:20
Last Modified: 28 Nov 2023 03:20
URI: http://eprints.um.edu.my/id/eprint/39446

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