Diabetes-Associated Periodontal Disease Mechanisms

Diabetes mellitus profoundly alters the homeostasis of periodontal tissues through sustained hyperglycaemia, leading to the accumulation of advanced glycation end-products (AGEs), enhanced oxidative stress and a dysregulated immune response. Chronic elevations of reactive oxygen species (ROS) in hyperglycaemic conditions compromise the functional integrity of gingival fibroblasts and osteoblasts, while stimulating proinflammatory cytokine release. Engagement of the receptor for advanced glycation end-products (RAGE) on resident and infiltrating cells perpetuates a feed-forward loop of inflammation, matrix metalloproteinase activation and extracellular matrix degradation. Concurrent shifts in the subgingival microbiome favour more virulent species that further challenge host defences. Epigenetic modifications in periodontal cells under diabetic conditions reinforce a heightened proinflammatory and catabolic state, culminating in accelerated alveolar bone resorption. This multifaceted interplay between metabolic disturbance, immune dysfunction and microbial dysbiosis underpins the increased susceptibility and severity of periodontal disease in individuals with diabetes, with implications for systemic inflammation and cardiovascular risk.

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Diabetes-Associated Periodontal Disease Mechanisms publication trend

The graph below shows the total number of articles in diabetes-associated periodontal disease mechanisms across all publications each year (not limited to Nature Index journals).

Technical terms

Advanced glycation end-products (AGEs): Covalent adducts formed by non-enzymatic glycation of proteins and lipids, accumulating in hyperglycaemia and triggering inflammation.

Reactive oxygen species (ROS): Chemically reactive molecules derived from oxygen that, in excess, damage cellular components and activate proinflammatory pathways.

Receptor for advanced glycation end-products (RAGE): A cell-surface receptor that recognises AGEs and mediates inflammatory signalling cascades.

Nrf2 signalling: A cytoprotective transcriptional programme that upregulates antioxidant responses to counteract oxidative stress.

Inflammaging: Chronic, low-grade inflammation associated with ageing and metabolic disorders, contributing to tissue degeneration.

Matrix metalloproteinase-1 (MMP-1): An enzyme that degrades collagen and extracellular matrix, central to periodontal tissue breakdown.

References

1. Ganoderma Microsporum Immunomodulatory Protein Alleviates Inflammaging and Oxidative Stress in Diabetes-Associated Periodontitis via Nrf2 Signaling Activation: An In Vitro Study. Antioxidants (2024).
2. Diabetes mellitus promotes susceptibility to periodontitis—novel insight into the molecular mechanisms. Frontiers in Endocrinology (2023).
3. Novel Insight into the Mechanisms of the Bidirectional Relationship between Diabetes and Periodontitis. Biomedicines (2022).