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  • Title: Occult hepatitis B virus infection of donor and recipient origin after liver transplantation despite nucleoside analogue prophylaxis.
    Author: Cheung CK, Lo CM, Man K, Lau GK.
    Journal: Liver Transpl; 2010 Nov; 16(11):1314-23. PubMed ID: 21031547.
    Abstract:
    Liver grafts from donors positive for antibody to hepatitis B core antigen (anti-HBc) may be used for transplantation in patients with hepatitis B virus (HBV)-related liver disease, and an occult HBV infection may develop from either source. Liver biopsy was performed for 31 patients who remained seronegative for hepatitis B surface antigen for a median of 44.5 months (range = 13.6-126.4 months) and received nucleoside analogue prophylaxis post-transplant. Nineteen of these recipients (61%) had received anti-HBc-positive grafts. Intrahepatic total HBV DNA and covalently closed circular DNA (cccDNA) levels were quantified, and the sequence was analyzed. Intrahepatic total HBV DNA and cccDNA were detectable in 26 (84%) and 16 (52%) of the 31 recipients, respectively, and they were more common when the donor was positive for anti-HBc (95% versus 67%, P = 0.038). The intrahepatic HBV DNA level correlated with the recipient pretransplant serum HBV DNA level (P = 0.06), and the intrahepatic HBV cccDNA level correlated with the donor intrahepatic HBV cccDNA level (P = 0.06). A phylogenetic analysis of the isolated HBV DNA sequence revealed HBV infections of both donor and recipient origins. In conclusion, an occult HBV infection after liver transplantation can originate from both the donor and recipient despite prolonged nucleoside analogue prophylaxis. The presence of intrahepatic HBV cccDNA is attributable more to the persistence of preexisting intrahepatic HBV cccDNA from a donor with previous exposure.
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