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  • Title: [Detection of replicative form of HCV RNA in peripheral blood leukocytes and its clinical significance].
    Author: He Y, Ferencik S, Luo D.
    Journal: Zhonghua Nei Ke Za Zhi; 1995 Jul; 34(7):459-62. PubMed ID: 8556927.
    Abstract:
    Nested RT-PCR, done by using degenerated primer pair, was used to detect hepatitis C virus RNA (HCV RNA) in serum, plasma, liver and peripheral blood leukocytes (PBLC) of 30 patients with acute and chronic posttransfusion hepatitis C and 7 asymptomatic anti-HCV positive subjects. The results showed that the percentage of positive HCV RNA in PBLC, including both the plus and minus strands, in patients with chronic hepatitis C was significantly higher than that in acute hepatitis C and asymptomatic anti-HCV positive subjects (P < 0.05-0.001). All the 7 asymptomatic anti-HCV positive subjects did not have detectable minus strand of HCV RNA in their PBLC, serum or plasma. In 17 patients who had liver histologic examination, the positive rate of both strands of HCV RNA in PBLC of acute hepatitis (AH) was lower than that of chronic active hepatitis (CAH) (P < 0.05). Both strands of HCV RNA were detected in the liver of one AH and 6 CAH patients. The present data confirmed that PBLC of patients with hepatitis C were indeed infected by HCV. The longer the infection time, the more the chance of PBLC being infected by HCV. Patients with active liver disease (CAH) had usually higher positive rate of minus strands of HCV RNA in PBLC. In the serum and plasma of all the 37 cases, minus strand of HCV RNA was not detected and the positive rate of the plus strand of HCV RNA in their serum and plasma was similar. Futhermore, the positive rate of both plus and minus strands of HCV RNA in PBLC of 30 patients with chronic hepatitis C was also similar. It is suggested that HCV not only may infect PBLC, but also replicate in PBLC and that the occurrence of minus strand of HCV RNA is associated with activity of liver disease.
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