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. Nov-Dec 2017;28(6):675-678.
doi: 10.1590/0103-6440201701560.

Cell Derived Microparticles in Gingival Crevicular Fluid From Periodontitis Patients With Type 2 Diabetes

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Cell Derived Microparticles in Gingival Crevicular Fluid From Periodontitis Patients With Type 2 Diabetes

Carlos Marcelo Figueredo et al. Braz Dent J. .
Free article

Abstract

Cell-derived microparticles (MPs) have been described as vital contributors to the inflammatory process. However, its role in the periodontal disease pathogenesis remains unclear. Therefore, we aimed to detect the presence neutrophil (CD66b+) and platelet (CD41b+) derived microparticles in gingival crevicular fluid from individuals having periodontitis aggravated by type 2 diabetes. Twelve patients (56.2 ±7.2 yrs) with severe form of chronic periodontitis aggravated by type 2 diabetes were included. Clinical and metabolic data were gathered. Gingival crevicular fluid was collected using filter strips from deep and shallow sites. MPs were detected by flow cytometry according to their size (< 1 µm) and the expression of surface markers (CD66b for neutrophil-derived MPs and CD41b for platelet-derived MPs). All samples were positive for the antibodies. Median levels of CD66b+ MPs and CD41b+ MPs were, respectively, 3,677.0 (2,553.2 - 9,059.8) MP/µL and 520.7 (432.9 - 766.1) MP/µL in deep sites. In shallow sites, the corresponding values were 2,644.9 (1,451.5 - 3,858.9) MP/µL and 371.2 (287.2 - 692.7) MP/µL. There was no significant difference between deep and shallow sites (p>0.05). In conclusion, this study reported the presence of neutrophil and platelet derived microparticles in gingival crevicular fluid from individuals having severe periodontitis and type 2 diabetes.

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