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Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study)

BACKGROUND: Hepatitis G virus (HGV) is an RNA virus. It is mainly transmitted through exposure to contaminated blood although other routes may also exist. Patients with chronic renal failure (CRF) are at high risk of acquiring HGV because they require frequent blood transfusions. Ongoing HGV infecti...

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Autores principales: Hammad, Ayman Mohammad, Zaghloul, Mohammad Hosam El Deen
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804678/
https://www.ncbi.nlm.nih.gov/pubmed/20015406
http://dx.doi.org/10.1186/1476-0711-8-36
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author Hammad, Ayman Mohammad
Zaghloul, Mohammad Hosam El Deen
author_facet Hammad, Ayman Mohammad
Zaghloul, Mohammad Hosam El Deen
author_sort Hammad, Ayman Mohammad
collection PubMed
description BACKGROUND: Hepatitis G virus (HGV) is an RNA virus. It is mainly transmitted through exposure to contaminated blood although other routes may also exist. Patients with chronic renal failure (CRF) are at high risk of acquiring HGV because they require frequent blood transfusions. Ongoing HGV infection can be only diagnosed by demonstrating viremia in patient sample by reverse transcriptase (RT) PCR. Antibodies to the envelop protein E(2 )(anti E(2)) of HGV is an indicator of virus clearance and testify past HGV contact. This cross sectional study was done to assess the frequency of HGV exposure (ongoing and past infection) in Egyptian children with CRF and to study the possible risk factors of infection. METHODS: This study included 100 children with CRF [34 on regular haemodialysis (HD) and 66 before the start of dialysis (predialysis)]. All patients sera were tested for HGV RNA by RT-PCR, anti E(2), hepatitis C virus (HCV) antibody, hepatitis B surface antigen (HBsAg), and hepatitis B core antibody (HBcAB). Twenty five healthy children of matched age & sex were used as controls. RESULTS: HGV RNA was positive in 9 (26.5%) of HD and 9 (13.6%) of predialysis children. Anti E(2 )was positive in 14 (41.2%) of HD and 19 (28.8%) of predialysis children. In comparison to controls; CRF (n = 100); HD and predialysis children had significantly higher prevalence of anti E(2 )[4% VS 33% for all CRF cases; (p = 0.002)& 41.2% (p = 0.002) and 28.8% (p = 0.01); for HD and predialysis groups; respectively]. HGV RNA was significantly more prevalent only in HD children in comparison to controls (p = 0.03). HD and predialysis children did not have significant difference in the prevalence of HGV RNA (p = 0.16) or anti E(2 )(p = 0.26). HGV exposure was not correlated with positivity of anti HCV (p = 0.32), HCV RNA (0.09), HBsAg/HBcAB (p = 1), age (p = 0.06), or gender (p = 0.83). It was significantly correlated with duration of the disease (p < 0.001). Ongoing HGV infection was significantly more prevalent with frequent blood transfusion (p < 0.001). There were no significant differences in serum levels of ALT (p = 0.09), total bilirubin (p = 0.1) and albumin (p = 0.06) in children with ongoing infection in comparison to healthy controls. CONCLUSIONS: The frequency of HGV exposure in Egyptian children with CRF appears to be high and is mainly related to frequent blood transfusions and longer disease duration. HGV infection in these children is not associated with significant changes in hepatic biochemical parameters.
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spelling pubmed-28046782010-01-12 Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study) Hammad, Ayman Mohammad Zaghloul, Mohammad Hosam El Deen Ann Clin Microbiol Antimicrob Research BACKGROUND: Hepatitis G virus (HGV) is an RNA virus. It is mainly transmitted through exposure to contaminated blood although other routes may also exist. Patients with chronic renal failure (CRF) are at high risk of acquiring HGV because they require frequent blood transfusions. Ongoing HGV infection can be only diagnosed by demonstrating viremia in patient sample by reverse transcriptase (RT) PCR. Antibodies to the envelop protein E(2 )(anti E(2)) of HGV is an indicator of virus clearance and testify past HGV contact. This cross sectional study was done to assess the frequency of HGV exposure (ongoing and past infection) in Egyptian children with CRF and to study the possible risk factors of infection. METHODS: This study included 100 children with CRF [34 on regular haemodialysis (HD) and 66 before the start of dialysis (predialysis)]. All patients sera were tested for HGV RNA by RT-PCR, anti E(2), hepatitis C virus (HCV) antibody, hepatitis B surface antigen (HBsAg), and hepatitis B core antibody (HBcAB). Twenty five healthy children of matched age & sex were used as controls. RESULTS: HGV RNA was positive in 9 (26.5%) of HD and 9 (13.6%) of predialysis children. Anti E(2 )was positive in 14 (41.2%) of HD and 19 (28.8%) of predialysis children. In comparison to controls; CRF (n = 100); HD and predialysis children had significantly higher prevalence of anti E(2 )[4% VS 33% for all CRF cases; (p = 0.002)& 41.2% (p = 0.002) and 28.8% (p = 0.01); for HD and predialysis groups; respectively]. HGV RNA was significantly more prevalent only in HD children in comparison to controls (p = 0.03). HD and predialysis children did not have significant difference in the prevalence of HGV RNA (p = 0.16) or anti E(2 )(p = 0.26). HGV exposure was not correlated with positivity of anti HCV (p = 0.32), HCV RNA (0.09), HBsAg/HBcAB (p = 1), age (p = 0.06), or gender (p = 0.83). It was significantly correlated with duration of the disease (p < 0.001). Ongoing HGV infection was significantly more prevalent with frequent blood transfusion (p < 0.001). There were no significant differences in serum levels of ALT (p = 0.09), total bilirubin (p = 0.1) and albumin (p = 0.06) in children with ongoing infection in comparison to healthy controls. CONCLUSIONS: The frequency of HGV exposure in Egyptian children with CRF appears to be high and is mainly related to frequent blood transfusions and longer disease duration. HGV infection in these children is not associated with significant changes in hepatic biochemical parameters. BioMed Central 2009-12-16 /pmc/articles/PMC2804678/ /pubmed/20015406 http://dx.doi.org/10.1186/1476-0711-8-36 Text en Copyright ©2009 Hammad and Zaghloul; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Hammad, Ayman Mohammad
Zaghloul, Mohammad Hosam El Deen
Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study)
title Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study)
title_full Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study)
title_fullStr Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study)
title_full_unstemmed Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study)
title_short Hepatitis G virus infection in Egyptian children with chronic renal failure (single centre study)
title_sort hepatitis g virus infection in egyptian children with chronic renal failure (single centre study)
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2804678/
https://www.ncbi.nlm.nih.gov/pubmed/20015406
http://dx.doi.org/10.1186/1476-0711-8-36
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