First detection of hepatitis E virus genotype 3 as a common infectious agent in patients with chronic liver damage in Mexico.
Ann Hepatol
; 18(4): 571-577, 2019.
Article
em En
| MEDLINE
| ID: mdl-31080055
ABSTRACT
INTRODUCTION AND OBJECTIVES:
To characterize the virological features of hepatitis E virus (HEV) in serum from patients exhibiting chronic liver damage.METHODS:
A data-base of 513 unrelated individuals from West-Mexico with liver-disease determined by clinical and biochemical tests and transient elastography between 2011 and 2016 were retrospectively analyzed. According to infectious etiologies, patients were classified as hepatitis B virus (HBV)-, hepatitis C virus (HCV)-infected patients, and patients exhibiting chronic liver damage with non-identified infectious etiological agent (NIIEA). Available serum samples from NIIEA-patients were tested by RT-nPCR for the presence of HEV-RNA and partially sequenced for genotyping.RESULTS:
Out of the 513 cases, 5.85% were patients infected with HBV, 67.64% with HCV, and 26.51% were NIIEA-patients. Among 76 available samples from NIIEA-cases, 30.26% tested positive for HEV-RNA. Twelve (15.79%) partial HEV sequences allowed phylogenetic analysis, revealing the classification of HEV as HEV-Gt3. Advanced fibrosis (F3-F4 stage) was found in a 26.1% of patients with HEV-active infection.CONCLUSION:
Although HCV is the main infectious agent related to chronic liver disease in Mexico, liver damage without an infectious etiology is common. Our findings reveal that an elevated rate of chronic liver disease might be represented by autochthonous infection of HEV-Gt3, whose detection makes Mexico unique in Latin-America with the circulation of HEV strains belonging to three genotypes (Gt1, Gt2, and Gt3). Thus, HEV infection should be a matter of health concern, and mandates for HEV screening to properly handle this commonly undiagnosed disease.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
RNA Viral
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Vírus da Hepatite E
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Hepatite E
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Cirrose Hepática
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
País como assunto:
Mexico
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article