Abstract
Objectives
Recurrent aphthous stomatitis (RAS) is the most common oral mucosal disease. Despite plenty of studies on aetiopathogenesis of RAS, a definite cause is not clear. The objective of this study was to determine the potential changes of salivary IgA and salivary flow rate in patients affected with minor form of RAS.
Materials and methods
Levels of salivary IgA in 33 patients with acute RAS (minor form) and 33 matched healthy controls were determined using enzyme-linked immunosorbent assay. Resting salivary flow rates were determined too. Both measurements, levels of salivary IgA and resting salivary flow rate, were performed again for each RAS patient in remission phase.
Results
Levels of salivary IgA were significantly increased in acute phase of RAS [median (interquartile range)—124.94 μg/mL (106.22–136.31)] in comparison with the levels in healthy controls [88.92 μg/mL (76.85–93.91; P < 0.001)] and with the levels in remission phase [102.4 μg/mL (84.6–120.16; P = 0.01)]. Even in the disease-free period (remission phase), levels of salivary IgA remained significantly higher in comparison with the levels in healthy controls (P = 0.01). Salivary flow rates, on the other side, were not influenced by the disease state (RAS vs. healthy), phase (acute vs. remission) or even gender (males vs. females).
Conclusion
Marked increase of salivary IgA in acute and remission phases of the minor RAS may suggest a potential role for this immunoglobulin in pathogenesis of the disease.
Clinical relevance
Salivary IgA may be an important aetiological agent in the pathogenesis of RAS, and hence, its immunomodulation may help prevent the disease.
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Acknowledgments
The results presented in this study are part of the first author’s master project which was financially supported by the Faculty of Dentistry, Damascus University.
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The authors declare that they have no conflict of interest.
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Mohammad, R., Halboub, E., Mashlah, A. et al. Levels of salivary IgA in patients with minor recurrent aphthous stomatitis: a matched case–control study. Clin Oral Invest 17, 975–980 (2013). https://doi.org/10.1007/s00784-012-0785-2
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DOI: https://doi.org/10.1007/s00784-012-0785-2