Periodontitis and Mild Cognitive Impairment Risk in Diabetic Patients: Insights from an Exploratory Analysis

Area of Science:

• Neurology
• Periodontology
• Endocrinology

Background:

• Cognitive impairment, including dementia, poses a significant global health challenge, exacerbated by aging populations.
• Periodontitis and diabetes mellitus are recognized modifiable risk factors for dementia, potentially mediated by systemic inflammation.
• Systemic inflammation from periodontitis may elevate the risk of cognitive decline.

Purpose of the Study:

• To investigate the association between periodontal inflammation and the risk of Mild Cognitive Impairment (MCI) in patients with type 2 diabetes mellitus.
• To explore the correlation between the Periodontal Inflamed Surface Area (PISA) score and MCI risk.
• To identify potential biomarkers linking periodontal disease and cognitive health.

Main Methods:

• An analytical cross-sectional study was conducted using baseline data from diabetic patients aged 40 and above.
• Periodontal inflammation was quantified using the Periodontal Inflamed Surface Area (PISA) score.
• Mild Cognitive Impairment (MCI) risk was assessed via blood analysis of eight protein markers, with statistical analyses including Fisher's exact test and Spearman's correlation.

Main Results:

• A significant difference in MCI risk score was observed between low and high PISA groups (p < 0.05).
• Patients with lower PISA scores exhibited a reduced risk of MCI (p < 0.00).
• PISA score (ρ = 0.37; p < 0.05) and TTR levels (ρ = -0.51; p < 0.01) were significantly correlated with MCI risk.

Conclusions:

• Periodontal inflammation status demonstrates a potential correlation with the risk of Mild Cognitive Impairment (MCI).
• These findings suggest that managing periodontal health may be important for cognitive health in diabetic patients.
• Further research is warranted to elucidate the mechanisms underlying the link between periodontitis, systemic inflammation, and cognitive decline.