Pathogenic significance and organic virus levels in patients infected with TT virus.

Abstract:

:Previous reports documented the recovery of a DNA virus from a patient with posttransfusion non-A-G hepatitis and named TT virus (TTV). Although the virus was initially detected as a causative agent of hepatitis, there is doubt about its pathogenicity. The aim of this study was to clarify the relationship between TTV and liver diseases. Histopathological examination of liver biopsies from 14 patients with TTV genotype 1 positive non-B, non-C and non-G chronic hepatitis showed mild fibrosis and periportal/piecemeal necrosis. Using the real-time detection (RTD)-PCR method, we found that TTV DNA levels of genotype 1 in liver samples from 3 such patients were 100- to 1,000-fold higher than those in the paired serum samples. Further investigation using various tissues from 2 autopsies of patients with hepatitis C with hepatocellular carcinoma revealed that the concentrations of TTV DNA in the liver were also higher than in serum samples. However, the highest TTV DNA concentrations in these 2 autopsies were found in the lung and bone marrow, respectively. Our results suggest that TTV may replicate in various tissues including the liver and may cause only mild liver damage.

journal_name

Intervirology

journal_title

Intervirology

authors

Suzuki F,Chayama K,Tsubota A,Akuta N,Someya T,Kobayashi M,Suzuki Y,Saitoh S,Arase Y,Ikeda K,Kumada H

doi

10.1159/000050060

keywords:

subject

Has Abstract

pub_date

2001-01-01 00:00:00

pages

291-7

issue

5

eissn

0300-5526

issn

1423-0100

pii

50060

journal_volume

44

pub_type

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