Article
Association Between Mast Cells and Collagen Maturation in Chronic Periodontitis in Humans
Registro en:
RIBEIRO, L. S. F. et al. Association Between Mast Cells and Collagen Maturation in Chronic Periodontitis in Humans. Journal of Histochemistry & Cytochemistry, v. 66, n. 6, p. 467–475, 2018.
0022-1554
10.1369/0022155418765131
Autor
Ribeiro, Lívia Silva Figueiredo e
Santos, Jean Nunes dos
Rocha, Clarissa Araújo Gurgel
Cury, Patricia Ramos
Resumen
Rocha, Clarissa Araújo Gurgel. “Documento produzido em parceria ou por autor vinculado à Fiocruz, mas não consta à informação no documento”. National Council for Scientific and Technological Development (303003/2015-4). Mast cells (MCs) can influence the maturation of collagen fibers. This study evaluated the relationship between the distribution and degranulation of MCs and collagen maturation in human gingival tissue in chronic periodontitis. A total of 16 specimens of patients clinically diagnosed as periodontitis and 18 controls clinically diagnosed as healthy or gingivitis were included. Immunohistochemistry and Picrosirius staining were performed to identify MCs and assess collagen fibers, respectively. Chi-square, t test, and Pearson's correlation test ( p<0.05) were used. In control specimens, there was a positive association between MCs in the connective tissue and the presence of immature collagen ( p=0.001); in periodontitis samples, this association was not confirmed ( p≥0.12). There was no significant relationship between periodontal diagnosis and collagen maturation or MC degranulation ( p≥0.35). MC density was significantly higher ( p=0.04) in periodontitis tissue (339.01 ± 188.94 MCs/mm2) than in control tissue (211.14 ± 131.13 MCs/mm2) in the area of connective tissue containing inflammatory infiltrate. There was a correlation between the number of MCs and probing depth ( r = 0.34, p=0.04). MCs are involved in the pathogenesis of periodontal diseases and might be associated with collagen maturation in periodontal tissue during the early stages of periodontal disease pathogenesis.