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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1993 Mar 1;90(5):1848–1851. doi: 10.1073/pnas.90.5.1848

Hepatitis C virus RNA in southern African blacks with hepatocellular carcinoma.

J Bukh 1, R H Miller 1, M C Kew 1, R H Purcell 1
PMCID: PMC45977  PMID: 8383330

Abstract

We used a sensitive and specific cDNA polymerase chain reaction assay to detect hepatitis C virus (HCV) RNA in serum samples from 128 unselected southern African Blacks with hepatocellular carcinoma (HCC) and found HCV RNA in 26 (20.3%) of these patients. Antibodies to HCV (anti-HCV) were detected in 59 patients (46.1%) with a first-generation ELISA test, and only 19 of these patients were HCV RNA-positive. Anti-HCV was detected in 25 patients (19.5%) with a second-generation ELISA test, and 17 of these patients were HCV RNA-positive. Among the second-generation ELISA- and HCV RNA-positive patients, 14 were anti-HCV positive, 2 were indeterminate, and 1 was anti-HCV negative in a second-generation recombinant immunoblot assay, whereas all patients who were second-generation ELISA positive, but HCV RNA negative, were anti-HCV negative in this immunoblot assay. A total of 5 patients were negative in both ELISA tests but were HCV RNA positive. Seventy-one patients (55.5%) had evidence of a current HBV infection, 50 (39.1%) had evidence of a previous infection, and 7 (5.5%) had no evidence of a current or previous HBV infection. The prevalence of current HBV infection was significantly lower in patients who were positive for HCV RNA than in those who were negative (P = 0.001). This difference was not dependent on sex, age, or geographical location of the patients. The mean age of HCC patients positive for HCV RNA (52.3 years) was significantly higher (P < 0.001) than that of negative patients (40.3 years), and the difference was not dependent on HBV status or geographical location. Patients positive for HCV RNA were more likely to be urban than were negative patients. Thus, a significant number of southern African Blacks with HCC had a current HCV infection but not a current HBV infection, further suggesting that infection with HCV plays a role, albeit minor, in the development of HCC in this population.

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Selected References

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