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Caspase-cleaved fragments of cytokeratin-18 as a marker of inflammatory activity in chronic hepatitis B virus infection.

Authors
Bae, CB; Kim, SS; Ahn, SJ; Cho, HJ; Kim, SR; Park, SY; Song, GW; Kim, DJ; Hwang, SG; Yang, JM; Kim, YB; Park, YN; Shin, SJ; Cho, SW; Cheong, JY
Citation
Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 58(4):641-646, 2013
Journal Title
Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology
ISSN
1386-65321873-5967
Abstract
BACKGROUND: The differential diagnosis between inactive carrier and active hepatitis is important in patients with chronic hepatitis B (CHB) virus infection. Serum cytokeratin (CK)-18 fragments (M30-antigen) are proposed as biomarkers of apoptosis.



OBJECTIVES: We investigated whether serum M30-antigen levels might help to characterize the various phases of CHB and predict the state of significant inflammation in patients with CHB.



STUDY DESIGN: A total of 339 CHB patients who underwent liver biopsy, were included. Serum M30-antigen levels were compared between inactive carriers (n=21), patients with HBeAg-negative hepatitis (n=95), HBeAg-positive hepatitis (n=141) and liver cirrhosis (n=82).



RESULTS: Serum M30-antigen levels were correlated significantly not only with AST (r=0.544, p<0.001) and ALT (r=0.315, p<0.001) and but also inflammatory grading score on liver biopsy (r=0.240, p<0.001). Serum M30-antigen level in HBeAg-negative CHB was significantly higher than that of inactive HBV carrier (399.78 U/L vs 148.90 U/L, p<0.001). Multivariate analysis showed that AST (p344 U/L) and AST (>78 IU/L) measurement provided the most accurate identification of significant inflammation, showing 38.2% sensitivity, 96.1% specificity, 91.0% positive predictive value and 56.1% negative predictive value.



CONCLUSIONS: Serum M30-antigen can be a predictive marker for distinguishing between inactive carrier and HBeAg-negative CHB. Serum M30 levels are associated with the presence of significant inflammation, especially in patients with normal or minimally elevated ALT in CHB patients.
Keywords
ApoptosisChronic hepatitis BCytokeratin-18Inactive carrierSignificant inflammation
DOI
10.1016/j.jcv.2013.10.008
PMID
24210327
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Rheumatology
Journal Papers > School of Medicine / Graduate School of Medicine > Pathology
Journal Papers > School of Medicine / Graduate School of Medicine > Gastroenterology
AJOU Authors
배, 창범김, 순선안, 선주김, 영배신, 성재조, 성원정, 재연
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