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Original Article

Serologic Characteristics in Primary Biliary Cirrhosis Associated with Sicca Syndrome

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Pages 655-660 | Received 09 Mar 1993, Accepted 23 Nov 1993, Published online: 08 Jul 2009
 

Abstract

Dorner T, Held C, Trebeljahr G, Lukowsky A, Yamamoto K, Hiepe F. Serologic characteristics in primary biliary cirrhosis associated with sicca syndrome. Scand J Gastroenterol 1994;29:655-660

Background: Patients with primary biliary cirrhosis (PBC) may have coincidental sicca syndrome (SS). The frequencies of SS and the occurrence of the Sjögren's-associated anti-Ro and -La antibodies in PBC patients have been reported at widely varying prevalences. This study investigated whether distinctive serologic characteristics are associated with SS in PBC.

Methods: Forty PBC patients and thirty patients with other types of liver cirrhosis were tested for SS and associated autoantibodies (ANA, AMA 2, anti-Ro, anti-La, anti-U1RNP-A, -C, -68 kD, and rheumatoid factors).

Results: Fourteen PBC patients (35%) complained of sicca symptoms, of whom 10 (25%) had a positive Schirmer-I test, and 7 (17.5%) had serologic characteristics similar to those of Sjögren's syndrome. Anti-52-kD Ro antibodies were positive in seven PBC/SS cases (p < 0.025). There was no anti-Ro positive PBC patient without SS. Three patients with PBC/SS with anti-52-kD Ro and anti-smooth-muscle antibodies developed lung fibrosis. No patient in the other cirrhosis group had SS or its characteristic autoantibody findings.

Conclusions: It was suggested that PBC and SS are frequently associated. Anti-52-kD Ro antibodies seem to be a characteristic serologic finding for SS in PBC, suggesting their pathogenic role in autoimmune sialadenitis.

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