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"Anti-HBc alone" in human immunodeficiency virus-positive and immuno-suppressed lymphoma patients
作者姓名:Yu Xuan Koo  Daniel SW Tan  Iain BH Tan  Richard Quek  Miriam Tao  Soon Thye Lim
作者单位:Yu Xuan Koo(Yong Loo Lin School of Medicine,National University of Singapore,10 Medical Drive,Singapore 117597,Singapore);Daniel SW Tan,Iain BH Tan,Richard Quek,Miriam Tao,Soon Thye Lim(Department of Medical Oncology,National Cancer Centre Singapore,11 Hospital Drive,Singapore 169610,Singapore) 
摘    要:Hepatitis B virus (HBV) infection is endemic in various parts of the world. A proportion of patients have resolved prior exposure to HBV, as evidenced by the clearance of circulating hepatitis B surface antigen and the appearance of antibody to hepatitis B core antigen (anti-HBc), which could produce protective antibody to hepatitis B surface antigen (anti-HBs). With time, anti-HBs in some patients may become negative. Such patients are described as having occult HBV infection or "anti-HBc alone". In the context of immunodeficient patients, such as HIV patients or lymphoma patients undergoing immunosuppressive immunotherapy, the lack of protective anti-HBs may increase the risk of hepatitis B reactivation. Serum HBV DNA testing may be necessary in "anti-HBc alone" patients, to detect patients at a high risk of developing HBV infection allowing appropriate prophylactic management.

关 键 词:人类免疫缺陷病毒  免疫反应  HBc  淋巴瘤  患者  阳性  乙型肝炎表面抗原  乙型肝炎病毒
收稿时间:2009 May 20

"Anti-HBc alone" in human immunodeficiency virus-positive and immuno-suppressed lymphoma patients
Yu Xuan Koo,Daniel SW Tan,Iain BH Tan,Richard Quek,Miriam Tao,Soon Thye Lim."Anti-HBc alone" in human immunodeficiency virus-positive and immuno-suppressed lymphoma patients[J].World Journal of Gastroenterology,2009,15(30):3834-3835.
Authors:Yu Xuan Koo  Daniel SW Tan  Iain BH Tan  Richard Quek  Miriam Tao  Soon Thye Lim
Institution:1. Yong Loo Lin School of Medicine,National University of Singapore,10 Medical Drive,Singapore 117597,Singapore
2. Department of Medical Oncology,National Cancer Centre Singapore,11 Hospital Drive,Singapore 169610,Singapore
Abstract:Hepatitis B virus (HBV) infection is endemic in various parts of the world. A proportion of patients have resolved prior exposure to HBV, as evidenced by the clearance of circulating hepatitis B surface antigen and the appearance of antibody to hepatitis B core antigen (anti-HBc), which could produce protective antibody to hepatitis B surface antigen (anti-HBs). With time, anti-HBs in some patients may become negative. Such patients are described as having occult HBV infection or "anti-HBc alone". In the context of immunodeficient patients, such as HIV patients or lymphoma patients undergoing immunosuppressive immunotherapy, the lack of protective anti-HBs may increase the risk of hepatitis B reactivation. Serum HBV DNA testing may be necessary in "anti-HBc alone" patients, to detect patients at a high risk of developing HBV infection allowing appropriate prophylactic management.
Keywords:Hepatitis B virus  Human immunodeficiency virus  Antibody to hepatitis B core antigen  Hepatitis B virus DNA  Viral hepatitis
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