Circadian gene BMAL1 attenuates gingival fibroblast senescence to suppress diabetic periodontitis progression

Jun 15, 2026Cellular signalling

The body clock gene BMAL1 slows aging in gum cells to reduce worsening of diabetes-related gum disease

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Abstract

Diabetes significantly aggravated alveolar bone resorption and accelerated gingival fibroblast senescence in a mouse model of diabetes periodontitis.

  • A hyperglycemic environment exacerbates periodontal inflammation and tissue destruction.
  • Diabetes and periodontitis exhibit a complex bidirectional relationship that worsens both conditions.
  • High glucose and lipopolysaccharide exposure activates the JAK1-STAT3 signaling pathway in gingival fibroblasts.
  • Downregulation of brain and muscle ARNT-like 1 (BMAL1) is associated with gingival fibroblast senescence.
  • Pharmacological activation of BMAL1 may mitigate senescence and mitochondrial dysfunction in gingival fibroblasts.

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