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Br J Rheumatol. 1993 Jan;32(1):52-4.

A preliminary study on the interferon-alpha treatment for xerostomia of Sjögren's syndrome.

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Department of Medicine, Kobe University School of Medicine, Japan.


We studied the therapeutic effect of interferon-alpha on the xerostomia of Sjögren's syndrome by injecting 1 x 10(6) units of interferon-alpha intramuscularly once weekly. Saliva production was quantitated by the Saxon test. Variation of saliva production measured at monthly intervals during the 3-month period prior to administration of interferon-alpha was within +/- 0.30 g/2 min. After administration of interferon-alpha, saliva production increased to greater than 0.30 g/2 min in six patients, and the increase was statistically significant by the paired t-test (P = 0.002). The result suggests a beneficial effect of this agent in increasing the saliva production of patients with primary Sjögren's syndrome.

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