下面是2个结果大相径庭的实验
Response to an Experimental HBV Vaccine Permits Withdrawal of HBIG Prophylaxis in HBV-infected Liver Graft Recipients
Strategies using lamivudine (Epivir-HBV) and hepatitis B immunoglobulins (HBIG) for prevention of hepatitis B virus (HBV) reinfection after liver transplantation (LT) are expensive since life-long treatment is needed.
Researchers in Belgium evaluated the possibility of obtain protective hepatitis B surface antigen (HBsAg) antibody (anti-HBs) titers after LT and to discontinue HBIG prophylaxis after a reinforced course of vaccination against HBV using an experimental adjuvant HBsAg / AS04 vaccine (GlaxoSmithKline Biologicals [GSK], Rixensart, Belgium) in patients transplanted for hepatitis B.
Fifteen LT patients on stable low-level immunosuppression were vaccinated with a double dose of the vaccine at 0, 1, 2, 6, and 12 months: 5 patients were transplanted for non viral diseases and 10 patients were transplanted for HBV on HBIG monotherapy.
HBIg were continued during baseline vaccination (0, 1, and 2 months) and when anti-HBs titers determined every 6 weeks dropped below 150 IU/L. Overall follow-up was 18 months.
Sustained long-term response to vaccination was defined as anti-HBs titers >500 IU/L without further need for HBIg administration during a follow-up period of at least 12 months.
Results
?span style='font:7.0pt "Times New Roman"'> Overall sustained response to vaccination was 53% (8 / 15 patients);
?span style='font:7.0pt "Times New Roman"'> 80% (4 / 5 patients) in the non viral disease group and 40% (4 / 10 patients) in the HBV group (2 /2 fulminant and 2/8 chronically infected patients) developed a sustained long-term response and were completely free of HBIg at the end of the 18-month follow-up.
?No HBV recurrence, rejection episodes, or side effects occurred during the follow-up.
In conclusion, the authors write, 揚rotective anti-HBs titers were obtained in a substantial number of LT patients following a reinforced course of HBV vaccination with vaccines containing new immunostimulating adjuvants. Vaccination seems well tolerated and safe and allows long-term discontinuation of HBIG.?/span>Department of Gastroenterology, St. Luc University Hospital, Brussels, Belgium.
10/03/05
Reference
P Starkel and others. Response to an experimental HBV vaccine permits withdrawal of HBIg prophylaxis in fulminant and selected chronic HBV-infected liver graft recipients.
Liver Transplantation 11(10):1228-1234.?October 2005.
Department of Gastroenterology, St. Luc University Hospital, Brussels, Belgium.
10/03/05
Reference
P Starkel and others. Response to an experimental HBV vaccine permits withdrawal of HBIg prophylaxis in fulminant and selected chronic HBV-infected liver graft recipients.
Liver Transplantation 11(10):1228-1234.?October 2005.