CHANGES IN LIVER FIBROSIS AT THE END OF ALPHA-INTERFERON THERAPY AND 6 TO 18 MONTHS LATER IN PATIENTS WITH CHRONIC HEPATITIS-C - QUANTITATIVE ASSESSMENT BY A MORPHOMETRIC METHOD
V. Duchatelle et al., CHANGES IN LIVER FIBROSIS AT THE END OF ALPHA-INTERFERON THERAPY AND 6 TO 18 MONTHS LATER IN PATIENTS WITH CHRONIC HEPATITIS-C - QUANTITATIVE ASSESSMENT BY A MORPHOMETRIC METHOD, Journal of hepatology, 29(1), 1998, pp. 20-28
Background/Aims: The aims of the study were to determine, in patients
with chronic hepatitis C treated with alpha interferon: (i) changes in
the morphometric evaluation of liver fibrosis at the end of treatment
and 6, 12 and 18 months after treatment; (ii) the predictive value of
histologic lesions for the response to treatment, in particular the p
redictive value of morphometric evaluation of liver fibrosis. Methods:
Seventy patients with chronic hepatitis C who participated in two tri
als of recombinant interferon alpha 2b treatment mere studied. Liver s
pecimens mere obtained before and at the end of treatment and 6, 12 or
18 months later. Histologic lesions mere assessed according to the Kn
odell system. Quantitative study of total fibrosis and of Disse space
collagen was done by the computerized automated morphometric method. R
esults: A significant decrease in morphometric Disse space collagen wa
s observed at the end of treatment and 6 months later. This decrease w
as also observed, although it mas not significant, 12 and 18 months af
ter treatment. There was no relationship between this decrease and the
biochemical and virological responses or the dose of interferon. The
pretreatment Knodell activity score, but not the morphometric evaluati
on of fibrosis, was a significant predictor of sustained response. Con
clusion: A decrease in Disse space collagen, as assessed by the sensit
ive morphometric method, was observed at the end of and 6 months after
treatment. This observation is consistent with an anti-fibrogenetic e
ffect of alpha interferon. Mild or moderate histologic activity was as
sociated with a sustained response to therapy.