SLD in Egypt is significantly associated with HCV infection, with the predominance of genotype 4. Concurrent HCV infection and SLD result in much more severe liver disease than that seen with either disease alone. However, the activity of HCV infection seems to be partially suppressed in patients with SLD.
Background and aim
Although hepatitis B virus (HBV) recurrence after liver transplantation (LTx) has been reduced since the application of the combination of hepatitis B immunoglobulin (HBIG) and nucleos(t)ide analogs (NUCs), the optimum regimen to prevent HBV recurrence with LTx favorable outcome is still not clear.
Aim
The aim was to evaluate the efficacy and safety of NUCs prophylaxis (±HBIG) against HBV recurrence after LTx.
Patients and methods
This was a retrospective cohort-longitudinal study on 44 HBV-related post-LTx patients on anti-HBV prophylactic therapy. They included the entecavir (ETV)-based (n=34, 30 males) and the other NUC-based (n=10, 7 males) groups±HBIG.
Results
The median age was 63.5 (60–70) years in ETV and 62.5 (55–65) years in other NUCs groups. The mean follow-up duration was 6.09±1.83 years in ETV-based group and 6.3±1.89 years in other NUCs-based group. The mean ETV duration was 3.47±3.04 years. In ETV+HBIG patients, none of them developed HBV recurrence throughout the ±8 years. In the 14 patients on ETV+other NUC+HBIG, four developed HBsAg positive and then transformed to HbsAb positive at the end of ±8 years without hepatitis or detectable HBV-DNA. Liver graft function showed nonsignificant difference for ETV-based patients, in comparison with other NUC groups (P=0.09). With subdivision, the graft function was maintained significantly better in ETV+HBIG or other NUCs+HBIG (P=0.04) groups. None of our patients reported NUCs-related complications or adverse effects.
Conclusion
ETV and other NUCs were effective and safe as a long-term prophylaxis of HBV recurrence after LTx, leading to a good graft function. HBsAg temporally reappeared in a minority of patients, where all showed HBsAb seroconversion without detectable HBV-DNA or clinical hepatitis.
The association between cryoglobulinemia and hepatitis C virus (HCV) infection has been reported. However, the factors underlying its wide variation of occurrence have not yet been well identified. To investigate this, cryoglobulinemia was studied in four cohorts of Egyptian and Japanese patients. Fifty Egyptian patients with chronic hepatitis C, infected with genotype 4 (the predominant HCV genotype in Egypt), were compared with 50 age- and sex-matched Japanese patients, infected with HCV genotype 1b (the predominant HCV genotype in Japan). Thirty-two Egyptian and 30 age- and sex-matched Japanese patients with chronic hepatitis B were included as controls. All patients were noncirrhotic. Antinuclear antibody (ANA), immunoglobulins (Ig), and cryoglubulins were assessed. Results showed a significantly higher prevalence of cryoglobulinemia in chronic hepatitis C Japanese genotype 1b (40%) as compared with Egyptian genotype 4 (14%), P = 0.003, while no difference was found between Japanese (17%) and Egyptian chronic hepatitis B controls (13%). Symptomatic cryoglobulinemia was more prevalent in the Japanese than in the Egyptian chronic hepatitis C group (10% vs. 4%), but the difference was not statistically significant. Univariate analysis showed no association between cryoglobulinemia and either age, sex, alanine aminotransferase level, or HCV viral load in Japanese or Egyptian patients, while the mean IgM level was significantly higher in the cryoglobulin-positive than in the cryoglobulin-negative chronic hepatitis C patients in each group (P = 0.003 and 0.017, respectively). Cryoglobulinemia was found to be significantly associated with both high IgG level (P = 0.020), and positive ANA (P < 0.001) in Japanese patients with chronic hepatitis C, genotype 1b but not in Egyptians with genotype 4. Multivariate analysis showed that the only factors predisposing to cryoglobulinemia were Japanese ethnicity with HCV genotype1b (P = 0.002, OR = 2.56), high IgM level of >245 mg/dl (P = 0.018, OR = 2.05) and female gender (P = 0.040, OR = 1/0.66). In conclusion, cryoglobulinemia is prevalent in Japanese patients with chronic hepatitis C infected with genotype 1b, but cryoglobulinemia is not common in Egyptians with HCV genotype 4. Although it was not possible to evaluate ethnicity and HCV genotype separately in this study, HCV genotype 1b appears to predispose more to cryoglobulinemia than does genotype 4. Female gender and high serum IgM level were also related.
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