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Updated: Jul 26, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Prevalence and characterization of hepatitis C virus in hemodialysis patients
T Morikawa1, K Nakata, K Hamasaki
1First Department of Internal Medicine, Nagasaki University School of Medicine.
Insights
Hepatitis C virus (HCV) is prevalent in hemodialysis (HD) patients. While HCV is replication-competent in these patients, viral RNA levels temporarily decrease after HD procedures.
Area of Science:
- Nephrology
- Virology
- Infectious Diseases
Background:
- Chronic hepatitis C virus (HCV) infection is a significant concern in patients undergoing hemodialysis (HD).
- Understanding the prevalence and characteristics of HCV in this vulnerable population is crucial for patient management.
Purpose of the Study:
- To determine the prevalence of HCV infection among hemodialysis patients.
- To analyze the properties and behavior of HCV RNA in this patient group.
Main Methods:
- Serological testing for HCV antibodies in 125 HD patients.
- HCV RNA detection using reverse transcription polymerase chain reaction (RT-PCR).
- HCV RNA sequencing and quantification via branched DNA assay in a subset of patients.
Main Results:
- A 27% prevalence of HCV antibody positivity was observed in HD patients.
- HCV RNA was detected in 68% of antibody-positive patients.
- Serial analysis revealed a transient decrease in HCV RNA levels immediately post-HD, with levels returning to baseline within 2 days.
Conclusions:
- Hepatitis C virus in hemodialysis patients demonstrates replication competence.
- Hemodialysis procedures induce a temporary reduction in viral load, suggesting potential viral dynamics related to the treatment.
Object:
Chronic hepatitis C virus (HCV) infection is common in hemodialysis (HD) patients. In the present study, the prevalence and properties of HCV in HD patients were analyzed.
Methods And Results:
Of 125 HD patients, 34 (27%) were positive for antibody to HCV, and HCV-RNA was detected in 23 (68%) of the 34 patients using reverse transcription polymerase chain reaction. The HCV-RNA sequence analysis did not identify the alterations specific to HD patients with HCV, although one patient had a variant virus containing the deletion of the core gene sequence. When serial changes in the levels of HCV-RNA were evaluated in 15 patients by a branched DNA assay, the values decreased immediately after HD procedure, but returned to the baseline values 2 days after the procedure.
Conclusion:
These results indicate that HCV in HD patients is replication-competent, although a transient reduction in the levels of HCV-RNA occurs during HD.
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Hemodialysis I: Introduction
Hemodialysis II: Procedure and Complications
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