Influence of delta virus infection on the virologic status in Egyptian patients with chronic hepatitis B virus genotype D.
Hepatitis delta virus (HDV) usually have an unfavorable clinical outcome in chronic hepatitis B virus (HBV) patients. In Egypt, data about epidemiology, the spectrum of disease, and impact of HDV on HBV infection are rare. To assess the prevalence, clinical and virological characteristics of HDV infection among Egyptian patients with chronic HBV. Adult patients with Hepatitis B surface antigen (HBsAg)-positive were evaluated for the presence of HDV using anti HDV-IgG and HDV RNA by RT-PCR. Routine laboratory investigations, genotypes and subtypes for both HBV and HDV, abdominal sonography, and transient elastography (TE) were done. Liver biopsy was performed only in whenever indicated. One hundred and twenty-one treatment-naïve chronic HBV patients were included. Wild HBV genotype-D2 was found in 98.2% and 81.9% were HBeAg negative. Prevalence of HDV was 8.3% by anti-HDV IgG and 9.9% by RT-PCR. Wild HDV genotype-IIb was reported in 83.3%. HDV infection was more common in males, 90.9% of delta patients were HBeAg negative. Compared to the mono-infected HBV, concomitant HBV/HDV infection was not associated with more derangment in ALT nor advanced stage of fibrosis. 66.7% of HDV patients had significantly lower HBV-DNA level compared to the non-delta patients (P < 0.001). HDV is not uncommon in Egypt. HBV genotype-D was associated with HDV genotype-IIb. Delta infection was associated with negative HBeAg status, reduction of HBV replication, but neither influenced the clinical course nor increased significant liver damage risk.
Department of Endemic Hepatology and Gasteroenterology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Rabab
R
Fouad
Department of Endemic Hepatology and Gasteroenterology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Mahmoud
M
Abdo
Department of Endemic Hepatology and Gasteroenterology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Hadeel Gamal
HG
Eldeen
Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Dina
D
Sabry
Department of Endemic Hepatology and Gasteroenterology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Mira
M
Atef
Department of Endemic Hepatology and Gasteroenterology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Rasha
R
Ahmed
Department of Endemic Hepatology and Gasteroenterology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Naglaa
N
Zayed
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D060085:Coinfection / Q000453:epidemiology / Q000821:virology*; D003430:Cross-Sectional Studies; D004534:Egypt / Q000453:epidemiology; D005260:Female; D005838:Genotype; D006508:Hepatitis Antibodies / Q000097:blood; D006515:Hepatitis B virus / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D019694:Hepatitis B, Chronic / Q000150:complications / Q000453:epidemiology / Q000473:pathology / Q000821:virology*; D019701:Hepatitis D, Chronic / Q000150:complications / Q000453:epidemiology / Q000473:pathology / Q000821:virology*; D003698:Hepatitis Delta Virus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D008099:Liver / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012367:RNA, Viral / Q000302:isolation & purification; D020133:Reverse Transcriptase Polymerase Chain Reaction; D055815:Young Adult
D006508:Hepatitis Antibodies; D007074:Immunoglobulin G; D012367:RNA, Viral
Egypt; HBV; HDV; genotype