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Periodontitis and Diabetes Differentially Affect Inflammation in Obesity.

S SantaCruz-Calvo1,2, S Saraswat2, H Hasturk3

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Journal of Dental Research
|October 9, 2024
PubMed
Summary

Periodontitis (PD) impacts systemic inflammation differently in obesity versus type 2 diabetes (T2D). Understanding these distinct oral-metabolic links is crucial for treating related inflammatory diseases.

Keywords:
T cellscytokinesinflammatory profilemyeloid cellssystemic diseasetype 2 diabetes

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Area of Science:

  • Immunology
  • Oral Health
  • Metabolic Diseases

Background:

  • Periodontitis (PD) exacerbates systemic inflammation, particularly in obesity and type 2 diabetes (T2D).
  • Previous research often groups obesity and T2D, obscuring PD's distinct effects on their inflammatory profiles.

Purpose of the Study:

  • To investigate how PD influences cytokine production in human obesity and T2D.
  • To differentiate the inflammatory effects of PD in obesity versus T2D.

Main Methods:

  • Collected peripheral blood mononuclear cells (PBMCs) from subjects with varying conditions.
  • Quantified cytokine secretion using Bioplex assays after stimulating T cells and myeloid cells.
  • Analyzed data using partial least squares discriminant analysis.

Main Results:

  • PD significantly altered T cell and myeloid inflammation in obesity.
  • PD affected myeloid but not T cell inflammation in T2D.
  • A bidirectional inflammatory relationship was observed between PD and T2D.
  • Advanced PD (Stage IV) in T2D subjects showed reduced T cell and myeloid cytokine production compared to earlier stages.

Conclusions:

  • PD and T2D impact systemic inflammation via overlapping yet distinct pathways in obesity.
  • Assessing both oral health (PD stage) and metabolic status is vital for understanding PD's systemic effects.
  • Considering multiple cellular cytokine sources is essential for clinical management of PD's systemic impact.