Functional activity of neutrophils and systemic inflammatory response of Downs syndrome patients with periodontal disease
Braz. j. oral sci
;
11(3): 422-427, jul.-set. 2012. ilus, tab
Article
Dans Anglais
| LILACS, BBO
| ID: lil-667685
ABSTRACT
Periodontal disease (PD) is characterized as an inflammatory process that compromises the support and protection of the periodontium. Patients with Downs syndrome (DS) are prone to develop PD. Neutrophils (NE) are the first line of defense against infection and their absence sets the stage for disease. Aim:
To compare the activity and function of NE in the peripheral blood from DS patients with and without PD, assisted at the Center for Dental Assistance to Patients with Special Needs affiliated with the School of Dentistry of Araçatuba, Brazil.Methods:
Purified NE were collected from peripheral blood of 22 DS patients. NE were used to detect the 5-lypoxigenase (5-LO) expression by RT-PCR. Plasma from peripheral blood was collected to measure tumor necrosis factor-a (TNF-a) and interleukin-8 (IL-8) by ELISA and nitrite (NO3) using a Griess assay.Results:
Data analysis demonstrated that DS patients with PD present high levels of TNF-a and IL-8 when compared with DS patients without PD. However, there was no statistically significant difference in the levels of NO3 production between the groups. The levels of the inflammatory mediator 5-LO expression increased in DS patients with PD.Conclusions:
According with these results, it was concluded that TNF-a and IL-8 are produced by DS patients with PD. Furthermore, DS patients with PD presented high levels of 5-LO expression, suggesting the presence of leukotriene B4 (LTB4) in PD, thus demonstrating that the changes in NE function due to the elevation of inflammatory mediators contribute to PD.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Parodonte
/
Syndrome de Down
/
Facteurs de nécrose tumorale
/
Granulocytes neutrophiles
langue:
Anglais
Texte intégral:
Braz. j. oral sci
Thème du journal:
Dentisterie
Année:
2012
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Universidade Estadual Paulista/BR
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