Clinicopathologic features of dual chronic hepatitis B and C infection: a comparison with single hepatitis B, C and delta infections

Hepatitis B virus in Egypt: the whole story

Hepatitis B virus (HBV) infection is a significant global public health threat with variable geographical distribution. Chronic infection with HBV could be complicated by chronic hepatitis state, progression to liver cirrhosis, and the development of hepatocellular carcinoma (HCC). For years, the magnitude of HBV problem in Egypt was masked by the great prevalence of hepatitis C virus in the country. The exact epidemiological data regarding HBV in Egypt are defective. The prevalence rate of HBV in Egypt has declined after the universal immunization program introduced for infants in 1992. This review addresses the whole story of HBV in Egypt: the epidemiology, risk factors, vaccination programs, and treatment efforts.

A Comprehensive Hepatitis B Surface Antigen-Positive Patient-Centered Screening and Linkage to Care Strategies Targeting Microelimination of Hepatitis C Virus Infection in Chongqing, China

Background and Aims

The likelihood of coinfection increases in regions where HBV is endemic because of the similar transmission route. China is another endemic nation, with 5.9% of the population being HBsAg-positive. This study aimed to evaluate the prevalence of HCV antibody positivity in HBsAg-positive subjects, HCV RNA positivity in anti-HCV positive subjects, and HBV/HCV coinfection with the hope of exploring hepatitis C microelimination using currently available therapies.

Method

12,500 HBsAg-positive serum samples were collected. All samples were screened for anti-HCV. Furthermore, positive samples were screened for HCV RNA. All patients with positive HCV RNA were followed up for suspicious transmission routes of HCV and linkage to care.

Results

44 out of 10,560 (0.4%) patients with positive HBsAg had detectable anti-HCV. There were 32 males and 12 females, with a statistical difference. 17 out of 44 were HCV RNA positive. Among them, 15 out of 38 patients were HCV RNA positive; 8 patients had started anti-HCV treatment with the DAA regimen, while the other 7 patients had not. After patient education, one patient had begun treatment and reached SVR12, while three patients still refused anti-HCV treatment.

Conclusion

The HCV/HBV coinfection prevalence was found to be lower in this study. Even though HBV and HCV share a somewhat similar transmission route, HBsAg-positive subjects may not be at high risk for HCV infection. The process of hepatitis C's microelimination could be accelerated by increasing patient awareness and education. This trail is registered with NCT03794791.

Insights Into the Coinfections of Human Immunodeficiency Virus-Hepatitis B Virus, Human Immunodeficiency Virus-Hepatitis C Virus, and Hepatitis B Virus-Hepatitis C Virus: Prevalence, Risk Factors, Pathogenesis, Diagnosis, and Treatment

Human immunodeficiency virus, hepatitis B virus, and hepatitis C virus are three blood-borne viruses that can cause major global health issues by increasing severe morbidity. There is a high risk of coinfection with these viruses in individuals because of their same transmission routes through blood using shared needles, syringes, other injection equipment, sexual transmission, or even vertical transmission. Coinfection can cause various liver-related illnesses, non-hepatic organ dysfunction, followed by death compared to any of these single infections. The treatment of coinfected patients is complicated due to the side effects of antiviral medication, resulting in drug resistance, hepatotoxicity, and a lack of required responses. On the other hand, coinfected individuals must be treated with multiple drugs simultaneously, such as for HIV either along with HBV or HCV and HBV and HCV. Therefore, diagnosing, treating, and controlling dual infections with HIV, HBV, or HCV is complicated and needs further investigation. This review focuses on the current prevalence, risk factors, and pathogenesis of dual infections with HIV, HBV, and HCV. We also briefly overviewed the diagnosis and treatment of coinfections of these three blood-borne viruses.

Management of hepatitis B and hepatitis C coinfection: an expert review

INTRODUCTION

Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections share common routes of transmission. HBV/HCV coinfection can lead to interactions affecting mechanisms of infection and therapy.

AREAS COVERED

In the review, we present epidemiology of HBV/HCV coinfection and current therapeutic options for both viruses. The possibility of drug-drug interactions during the treatment of coinfected patients is discussed. However, the major part of the review is dedicated to interactions between viruses and risk of HBV reactivation during HCV treatment with direct-acting antivirals (DAA). Finally, we analyze available international and national guidelines for the management of HBV reactivations related to DAA administration.

EXPERT OPINION

The most important international societies' guidelines include comments on HBV/HCV coinfection, but due to their inconsistency we present a proposal of management for HBV/HCV coinfected patients focusing mostly on HBV reactivation in patients treated for HCV. We provide some advice that should be considered in future guidelines for the management of HBV/HCV coinfection.

A scoring system to predict HBsAg seroclearance in hepatitis B and C coinfected patients treated with interferon and ribavirin in an Asian cohort

Current guidelines recommend that patients with hepatitis B virus-hepatitis C virus (HBV-HCV) coinfection be treated with direct anti-viral agents (DAAs). Compared with DAAs, pegylated interferon (PEG-IFN) and ribavirin therapy has the advantages of treating both viruses while maintaining an acceptable HCV sustained virological response (SVR) rate (70-80%) in Asian cohorts. In this study, we aimed to develop a simple scoring system to predict hepatitis B surface antigen (HBsAg) seroclearance in these patients. We enrolled 201 patients with HCV-HBV coinfection after IFN and ribavirin therapy. The study population was randomly allocated into derivation and validation sets in a 1:1 ratio. In the derivation cohort, multivariate analysis by Cox regression analysis revealed that HBsAg seroclearance was associated with age > 60 years (HR: 5.55, 95% CI: 1.68-18.37, P = .005), male gender (HR: 3.88, 95% CI: 1.18-12.80, P = .03), and qHBsAg level ≤100 IU/ml (HR: 4.87, 95% CI: 1.20-19.74, P = .03). Regression coefficients were used to build up a risk score, and the accuracy of the risk score was evaluated by using the area under the receiver operating characteristic curve (AUROC). The patients were classified into either a low-risk group or high-risk group based on the risk scores. Twenty-three (23.0%) patients in the derivation cohort and 30 (29.7%) patients in the validation cohort showed HBsAg seroclearance with an AUROC of 71.8%, sensitivity of 65.22%, and specificity of 75.32%. In the validation cohort, the 5-year HBsAg seroclearance incidence rates were 23.4% in the low-risk category and 43.8% in the high-risk category (HR = 2.21; 95% CI, 1.04-4.68, P = .04)The risk scoring system could be used to predict HBsAg seroclearance for HCV-HBV coinfected patients treated with IFN and ribavirin.

Circulating levels of collagen III and MMP-1 in patients with chronic hepatitis C co-infected with hepatitis B virus

BACKGROUND

There is controversial data in the literature about the characteristics and features of dual hepatitis B and hepatitis C infection. This work is concerned with estimating the extent to which HBV could influence circulating levels of hepatitis C viral nonstructural-4 (HCV-NS4) in addition to some direct fibrosis markers in chronic hepatitis C.

METHODS

Thirty-eight HCV mono-infected and 87 HCV/HBV co-infected patients constituted this study. Western-blot and ELISA were used for identifying HCV-NS4, hepatitis B surface antigen (HBsAg), collagen III and matrixmetalloproteinase-1 (MMP-1) in patients' sera.

RESULTS

Hepatitis B surface antigen (HBsAg) provided area under curve (AUC) of 0.97 for identifying HBV-patients with 89% sensitivity and 94% specificity, while HCV-NS4 antigen provided an AUC of 0.95 for identifying HCV-patients with 89% sensitivity and absolute specificity (100%). In general, patients with significant fibrosis (F2-F4) showed significantly higher concentration of collagen III (P = 0.009) and lower concentrations of MMP-1 (P = 0.007) when compared to patients with minimal fibrosis (F1). However, HCV/HBV co-infected patients with F1 and F2-F4 did not show any significant difference (P > 0.05) from HCV mono-infected patients with respect to HCV-NS4, collagen III and MMP-1. These results indicate that HBV does not influence the rate of HCV-NS4 synthesis and the deposition of extracellular matrix in HCV/HBV co-infected patients and subsequently does not affect the progression rates of hepatic fibrosis.

CONCLUSION

HCV/HBV co-infected and HCV- mono-infected patients had similar clinical characteristics and there is no effect of HBV co-infection on the progression rates of liver fibrosis in chronic hepatitis C patients.

The influence of hepatitis B and C virus coinfection on liver histopathology in children

The influence of hepatitis B virus (HBV) and hepatitis C virus (HCV) coinfection on liver histology in children remains unknown. We analyzed histopathological features in 70 treatment-naïve children: 10 with HBV/HCV coinfection (case group A), 30 with HBV (control group B), and 30 with HCV (control group C). Liver biopsies were scored for grading and staging according to Knodell's modified system and were tested for an association with demographic and laboratory data. The mean grade was higher in coinfected children compared to control group C (6.2 ± 3.0 vs. 4.2 ± 2.5, p = 0.04), but not control group B (p = 0.47). A higher proportion of patients with moderate to severe necroinflammation were observed in case group A compared to isolated HCV (p = 0.05). Mean staging did not differ between the case and control groups. Multivariate analysis revealed that HBV/HCV coinfection and aminotransferase activity were independently associated with moderate to severe necroinflammatory activity Conclusion: HBV/HCV coinfection was associated with moderate to severe necroinflammation irrespective of age at biopsy or duration of infection and led to significantly higher necroinflammatory activity than HCV monoinfection. HBV/HCV coinfection did not enhance fibrosis. High aminotransferase levels were positively associated with moderate to severe necroinflammation.

Virologic and histologic characterisation of dual hepatitis B and C co-infection in Egyptian patients

BACKGROUND AND STUDY AIMS

Data about dual hepatitis C (HCV) and B (HBV) co-infection are still scarce, especially in endemic areas such as Egypt. Therefore, we aimed to characterise the virologic and histologic pattern of dual B/C co-infection in a tertiary care centre in Egypt.

PATIENTS AND METHODS

After obtaining approval from the review board, a retrospective design to evaluate the data registry between January 2009 and December 2012 of patients with dual HCV and HBV seropositivity (BC-group) at the Viral Hepatitis Unit in Ministry of Health and Assiut University Hospital, Egypt was conducted. Data for hepatitis B e antigen (HBe-Ag) and anti-HB core status, anti-hepatitis delta virus (anti-HDV), HBV-DNA and HCV-RNA assays and liver biopsy (METAVIR scoring) results were collected. Two other matched groups of mono-HCV (C-group) and HBV (B-group) were selected as controls. All patients were naive for antiviral therapy.

RESULTS

A total of 3300 patients were enrolled. Dual infection was observed in 25 (0.7%) patients (all males, mean=35.2±10.2years). Four patients (16%) were HBe-Ag-positive. Six (24%) patients were HBV-DNA-negative and all were positive for HCV RNA. Between groups, raised alanine aminotransferase (ALT) was found in 76%, 41.7% and 49.2% of the BC, B and C groups, respectively (p=0.023). HBV DNA >2000IUml(-1) was more in the B-group than in the BC-group (63.9% vs. 36%; p=0.042) and HCV RNA >800,000IUml(-1) was more in the BC-group than in the C-group (28% vs. 12.3%; p=0.009). Histologically, there is no statistical significant difference between the three groups.

CONCLUSION

Dual hepatitis B/C infection is not uncommon and their virologic and histologic profile is modest. Further evaluation with regard to treatment and long-term follow-up is warranted.