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Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix
Published on: October 20, 2021
Does infection by the hepatitis C virus decrease the response of immunization against the hepatitis B virus in
Tarcila Maria Bonfim Ferreira1, Tácio Giordano Santana Guimarães2, Andrea Martins Melo Fontenele2
1Universitário Presidente Dutra.
Hepatitis B Virus (HBV) vaccination response is lower in chronic kidney disease (CKD) patients undergoing dialysis. Lack of Hepatitis C Virus (HCV) infection is linked to successful HBV vaccine response in these high-risk patients.
Area of Science:
- Nephrology
- Immunology
- Virology
Background:
- Hepatitis B Virus (HBV) vaccination is crucial for preventing transmission.
- Patients with chronic kidney disease (CKD) on dialysis face higher HBV infection risk and poorer vaccine response.
- Uremia in CKD patients may impair immune response to vaccinations.
Purpose of the Study:
- To assess Hepatitis B Virus (HBV) vaccine effectiveness in hemodialysis patients.
- To identify factors influencing HBV vaccine response in CKD patients.
- To evaluate seroconversion rates and associated clinical variables.
Main Methods:
- Assessed hemodialysis patients with HBsAG and negative anti-HBC.
- Administered a full HBV vaccination schedule.
- Utilized logistic regression to analyze factors like age, diabetes, dialysis duration, and Hepatitis C Virus (HCV) status.
Main Results:
- Achieved a 70% vaccine response rate (seroconversion) to HBV in the CKD dialysis cohort.
- Lack of anti-HCV infection was significantly associated with successful anti-HBs seroconversion (p=0.021).
- Identified potential protective effect of HCV infection on HBV vaccine response.
Conclusions:
- The HBV vaccine response rate in dialysis patients with CKD is 70%.
- Hepatitis C Virus (HCV) infection may be associated with a decreased response to the HBV vaccine in CKD dialysis patients.
- Further research is needed to elucidate the interaction between HCV and HBV vaccine response in CKD.
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