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  • Title: Longitudinal analysis of human salivary immunoglobulins, nonimmune antimicrobial agents, and microflora after tonsillectomy.
    Author: Kirstilä V, Tenovuo J, Ruuskanen O, Suonpää J, Meurman O, Vilja P.
    Journal: Clin Immunol Immunopathol; 1996 Aug; 80(2):110-5. PubMed ID: 8764554.
    Abstract:
    In order to study the role of tonsils in the host defense in the oral region one pre- and two postoperative (1 and 6 months) whole saliva samples were collected from 25 young adults referred for tonsillectomy. Saliva samples were analyzed for selected host defense factors, representing both immune (total IgA, IgG, IgM, anti-Streptococcus mutans, anti-EBV, anti-CMV, and anti-adenovirus IgA and IgG) and nonimmunoglobulin (lysozyme, lactoferrin, salivary peroxidases, thiocyanate, hypothiocyanite, and agglutinins) mediators. Following tonsillectomy, a significant (P < 0.04) reduction was observed in specific IgG antibodies, suggesting that tonsils participate in local IgG response to oral antigens. Total IgM levels also decreased (P< 0.006), which may to some extent reflect reduced antigenic stimuli compared to preoperative status with frequent tonsillitis. Saliva-derived nonimmunoglobulin host defense factors, except lactoferrin, which declined significantly, remained normal throughout the study period. Our study indicates that tonsils play a role in local oral IgG-mediated immune response but tonsillectomy does not seem to lead to any significant long-term impairment of salivary defense capacity.
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