Psychological stress has no association with salivary levels of b-defensin 2 and b-defensin 3
J Oral Pathol Med (2010) 39: 765-769Background: Recent studies suggest that stress can predispose an individual to the development of periodontal disease, but the exact biological mechanism is unknown. Considering that psychological stress can down-regulate the production of b-defensins (antimicrobi...
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Published in | Journal of oral pathology & medicine Vol. 39; no. 10; pp. 765 - 769 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
01.11.2010
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Subjects | |
Online Access | Get full text |
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Summary: | J Oral Pathol Med (2010) 39: 765-769Background: Recent studies suggest that stress can predispose an individual to the development of periodontal disease, but the exact biological mechanism is unknown. Considering that psychological stress can down-regulate the production of b-defensins (antimicrobial peptides produced in the oral cavity), the aim of the present study was to evaluate the association between stress and salivary levels of b-defensin 2 (HBD-2) and b-defensin 3 (HBD-3).Methods: For this purpose, seventy five volunteers, classified as periodontally healthy, were submitted to a psychological evaluation using a validated questionnaire (Questionnaire of Lipp-ISS). Following analysis of the questionnaires, the subjects were divided in two groups (Group A: Absence of stress and Group B: Presence of stress). Unstimulated saliva samples were collected and the concentration of total protein was determined using the BCA method, and the concentrations of HBD-2 and HBD-3 were determined by ELISA.Results: The levels of total protein did not show a statistically significant difference between the groups. Analyses of HBD-2 and HBD-3 concentrations indicate that the stress condition was not associated with the levels of either peptide in saliva (P = 0.3664 for HBD-2 and P = 0.3608 for HBD-3).Conclusion: In periodontally healthy subjects, HBD-2 and HBD-3 levels are not influenced by stress. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 content type line 23 ObjectType-Feature-1 |
ISSN: | 0904-2512 |
DOI: | 10.1111/j.1600-0714.2010.00933.x |