Document Detail


Antibodies to soluble liver antigen in patients with various liver diseases: A multicentre study.
MedLine Citation:
PMID:  23295051     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: Antibodies to soluble liver antigen (anti-SLA) are specific serological markers of autoimmune hepatitis (AIH). The clinical significance and frequency of anti-SLA have never been reported among AIH patients from Italy and Turkey. To retrospectively assess the estimated prevalence, sensitivity, specificity and clinical significance of anti-SLA in AIH and various liver diseases.
METHODS: A total of 986 patients who had been tested for serum anti-SLA were included in study. The presence of anti-SLA was detected using recombinant enzyme linked immunosorbent assay and immuno-blot. The general characteristics and outcome of patients were obtained from their medical records.
RESULTS: Antibodies to SLA were found in 30 (3%) of 986 patients. Of these, 27 (90%) had AIH and its variants, whereas the remaining three (10%) had primary biliary cirrhosis. The prevalence of anti-SLA was 9% in AIH patients from Italy and 15% in patients from Turkey. The specificity of these antibodies was 99.5%, whereas sensitivity was 11%. The positive predictive and negative predictive values were 90% and 77.5% respectively (95% confidence interval). Biochemical remission was achieved in 90% of anti-SLA positive AIH patients, but relapse after immunosuppressive withdrawal or during maintenance therapy was observed in 53% of the patients.
CONCLUSIONS: Seropositivity for anti-SLA occurs at similar frequencies in AIH patients from different geographical regions and ethnic groups. The sensitivity of anti-SLA is low, but it has high specificity for AIH. Additional studies are necessary to prove clinical significance of anti-SLA in AIH.
Authors:
Cumali Efe; Ersan Ozaslan; Staffan Wahlin; Tugrul Purnak; Luigi Muratori; Chiara Quarneti; Osman Yüksel; Paolo Muratori
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Liver international : official journal of the International Association for the Study of the Liver     Volume:  33     ISSN:  1478-3231     ISO Abbreviation:  Liver Int.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101160857     Medline TA:  Liver Int     Country:  United States    
Other Details:
Languages:  eng     Pagination:  190-6     Citation Subset:  IM    
Copyright Information:
© 2012 John Wiley & Sons A/S.
Affiliation:
Department of Gastroenterology, Numune Research and Education Hospital, Ankara, Turkey.
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