Abstract
Periodontitis may contribute to vascular damage, resulting in the destabilization of atherosclerotic plaque leading to acute coronary syndrome (ACS). In this study, we explored the effect of non-surgical periodontal treatment (NSPT) on cardiovascular blood biomarkers and gingival crevicular fluid (GCF) neutrophil elastase (NE) and α1-proteinase inhibitor (α-1PI) levels in periodontitis (P) participants with and without ACS. Medical and dental examinations were performed to diagnose ACS and periodontitis, respectively. Seventeen patients with diagnosis of ACS and periodontitis were included in this study, as a test group (group ACS). Twenty-six age and sex-matched control patients with periodontitis (group P) were otherwise systemically healthy. Both groups received NSPT. Plasma levels of cholesterol, triglyceride, high-density lipoprotein (HDL), low-density lipoprotein (LDL), C-reactive protein (CRP), GCF NE activity, GCF α1-PI levels, and GCF NE/α1-PI rates were measured at baseline, at1st and 3rd months after NSPT. GCF NE activity/time (μU/30s) decreased significantly at 3rd month compared to baseline values in the Group P after NSPT. First and 3rd months after NSPT, in the Group P GCF α1-PI activity/time (pg/30s) was significantly higher than the Group ACS. Moreover GCF NE/α1-PI rates decreased significantly compared to baseline values at 1st and 3rd months after NSPT in the group P. NSPT yields decrease in NE/α1-PI rates. NE and its possible interactions with α1-PI may play a crucial role in both periodontitis and ACS. GCF α1PI activity/time (U/30s) can be a potential biomarker in management of periodontitis associated with ACS. The GCF α1-PI reduction may alter the immune-inflammatory response in patients with periodontitis and thus increase the risk of ACS. Thai Clinical Trials.gov (NCT04785235).
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