Significance of salivary poly (ADP-ribose)-polymerase in the assessment of age-dependent pathological processes in the oral cavity

  
Bazarnyi V.V.1, Kopenkin M.A.1 , Polushina L.G.1, Maximova A.Yu.1, Sementsova E.A.1, Mandra Yu.V.1

1. Ural State Medical University, Yekaterinburg, Russia
Section: Clinical and Diagnostic Research
DOI: 10.18097/PBMC20236902125      PubMed Id: 37132494
Year: 2023  Volume: 69  Issue: 2  Pages: 125-132
Age-related changes in the oral cavity are accompanied by the development of age-related pathology, such as chronic periodontitis (CP). Although apoptosis plays a certain role in its pathogenesis, this fact, however, has not been evaluated clinically, and the diagnostic information content of biomarkers of apoptosis and aging has not been determined. The aim of the study was to evaluate the content of cleaved poly-(ADP-ribose)-polymerase (cPARP) and caspase-3 (Casp3) in mixed saliva of elderly patients with age-related dental diseases and in mature patients with mild to moderate CP. The study included 69 people. The control group included 22 healthy young volunteers aged 18 to 44 years. The main group included 22 elderly patients aged 60 to 74 years. They were divided into subgroups according to clinical manifestations: occlusion (comparison group), periodontal, and dystrophic syndromes. Additionally, a group of 25 patients of mature age from 45 to 59 years old with mild to moderate CP was analyzed. The content of salivary Casp3 in patients with occlusion syndrome was lower than in healthy young people (p=0.014). In patients with the periodontal syndrome, the content of cPARP was higher than in the comparison group (p=0.031). The group with dystrophic syndrome had the highest level of Casp3 in comparison with the control group and the comparison group (p=0.012, p=0.004, respectively). There were no statistically significant differences between patients of different age groups with mild to moderate CP. Evaluation of the correlation between cPARP and Casp3 levels revealed a direct relationship in the group of elderly patients and in patients with mild CP (r=0.69, r=0.81, respectively). We assessed the effect of Casp3 levels on changes in the cPARP levels by means of a simple linear regression analysis. The cPARP level correlated with the content of Casp3 (r²=0.555). According to the results of the ROC analysis, it was found that using the cPARP indicator it would be possible to distinguish between groups of elderly patients with periodontal and occlusion syndromes (AUC=0.71), while using Casp3 it would be possible to distinguish patients with the occlusion syndrome and the control group (AUC=0.78). Since the level of Casp3 in young people is significantly higher than in the elderly patients, its decrease can be considered as a potential salivary biomarker of aging. The level of studied cPARP in the elderly has clinical value in periodontal syndrome and low age dependence.
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Keywords: biomarker, saliva, aging, poly(ADP-ribose) polymerase, caspase-3, apoptosis
Citation:

Bazarnyi, V. V., Kopenkin, M. A., Polushina, L. G., Maximova, A. Yu., Sementsova, E. A., Mandra, Yu. V. (2023). Significance of salivary poly (ADP-ribose)-polymerase in the assessment of age-dependent pathological processes in the oral cavity. Biomeditsinskaya Khimiya, 69(2), 125-132.
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