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A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Most common HCV genotypes in patients from north-eastern Croatia
Magdalena Perić1, Zinka Bošnjak, Snježana Džijan2
1Institute of Public Health Osijek, F. Krežme 1, 31 000 Osijek, Croatia. zinkahr@gmail.com.
Insights
Hepatitis C virus (HCV) RNA was detected in 61.1% of antibody-positive patients, with genotype 1 being most common, particularly in older individuals. Early RNA detection is crucial for managing Hepatitis C virus disease.
Area of Science:
- Hepatology
- Virology
- Public Health
Background:
- Hepatitis C virus (HCV) infection remains a significant global health concern.
- Understanding viral load, genotype distribution, and risk factors is crucial for effective management and treatment strategies.
Purpose of the Study:
- To determine Hepatitis C virus RNA viral load, genotype distribution, risk factors, and symptoms in HCV antibody-positive patients in north-eastern Croatia.
- To assess the correlation between patient demographics, risk factors, and HCV RNA positivity.
Main Methods:
- Analysis of 203 HCV antibody-positive patients (January 2009-December 2011) using COBAS TaqMan HCV and Linear Array HCV Genotyping tests.
- Structured questionnaires collected data on risk factors and symptoms.
Main Results:
- HCV RNA prevalence was 61.1%, increasing with age (73% in >50 years vs. 55% in 20-50 years).
- Genotype 1 was predominant (79.8%), associated with older patients (median age 50).
- Blood transfusions before 1993 were significantly linked to HCV RNA positivity.
Conclusions:
- Elevated prevalence of genotype 1 in elderly HCV RNA-positive patients suggests a potential rise.
- RNA-based detection in antibody-positive individuals enables early identification of acute Hepatitis C virus infection.
- Early detection can mitigate the risk of genotype-related treatment failure.
Objective:
The aims of this study were to determine the HCV-RNA viral load, genotype distribution, risk factors and symptoms of HCVRNA positive viral load in HCV antibody-positive patients from north-eastern Croatia.
Materials And Methods:
From January 2009 to December 2011, 203 HCV antibody- positive patients (130 men and 73 women; median age 44.5 years) were analyzed for HCV-RNA by the COBAS TaqMan HCV test and genotyped by the Linear Array HCV Genotyping test (both from Roche). All patients completed a structured questionnaire about risk factors and symptoms.
Results:
The HCV-RNA percentage was 61.1% and was similar for men and women. The HCV-RNA viral load increased with age: while 55% of 20-50 year old patients were HCV-RNA positive, 73% of patients >50 years were positive (p=0.021). Genotype 1 was the most prevalent genotype (79.8%), followed by 3 (12.9%), 4 (6.5%), and 2 (0.8%); genotypes 5 and 6 were not determined. Patients with genotype 1 (median, 50 years) were older than patients with 3 (median, 33.5 years) or 4 (median, 38 years). The blood transfusions performed in Croatian hospitals before 1993 was significantly associated with HCV-RNA positive viral load (p<0.05).
Conclusion:
These data indicated an elevated prevalence of genotype 1 in elderly HCV-RNA positive patients and it may continue to rise. Using RNA-based detection in HCV positive-antibody patients would allow early detection of HCV in the acute stage of HCV disease and the increased risk of HCV genotyperelated treatment failure.
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