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Int J Rheumatol. 2012;2012:303506. doi: 10.1155/2012/303506. Epub 2012 Oct 16.

Is IgG4-Related Disease a Cause of Xerostomia? A Cohort Study of 60 Patients.

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  • 1Department of Internal Medicine, Regional Competence Group on Adults' Auto immune and Rare systemic diseases, G. Montpied Hospital, University Hospital of Clermont-Ferrand, 63003 Clermont-Ferrand Cedex 1, France.

Abstract

Objective. Immunoglobulin-G4-(IgG4-) related disease (IgG4 RD) is a fibrosing process characterized by a significant infiltration of IgG4-secreting plasma cells. IgG4 RD can affect almost all organs including salivary glands. Whether IgG4 RD plays a role in the development of sicca syndrome and particularly dry mouth syndrome remains to be investigated. Methods. We conducted a monocentric cohort study for two years to search for IgG4 RD features in patients with dry mouth syndrome using immunostainings of labial salivary gland specimens with anti-IgG4 antibody. Results. Among 60 patients presenting with dry mouth syndrome who underwent labial salivary gland biopsy, 18 showed positive immunostaining with the anti-IgG4 antibody including 4 patients with typical systemic IgG4 RD. Five also fulfilled criteria for Sjögren's syndrome. Conclusion. These findings suggest that clinical forms of IgG4 RD salivary involvement without salivary swelling may occur. This salivary involvement is probably overlooked in everyday practice and could represent a mild form of IgG4 RD.

PMID:
23118757
[PubMed]
PMCID:
PMC3479973
Free PMC Article
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