title: [Expression of hepatitis B virus antigen in brain tissue from liver cirrhosis patients with hepatitis B and its significance].
abstract: OBJECTIVE
  To investigate the expression of hepatitis B virus (HBV) antigen in brain tissue from liver cirrhosis patients with hepatitis B and explore its significance.
  
  
  METHODS
  HBsAg and HBcAg were detected in the brain tissue from 70 liver cirrhosis dead patients with hepatitis B by S-P immunohistochemical assay, and the relationship between the expression of HBV antigen in brain tissue testing and clinic and pathology was analyzed.
  
  
  RESULTS
  30 patients (42.89%) were positive for HBV antigen. Among them, 24 patients (34.29%) were positive for HBsAg and 18 patients (25.71%) were positive for HBcAg. HBV antigen was mainly found in cytoplasm and distributed in neurons, neurogliocytes and vascular endothelial cells. The positive cells were distributed separately, scatteredly or focally. The expression of HBV antigen was not associated with the serum level of HBV replication but associated with the occurrence of hepatic encephalopathy (HE) and the severity of brain tissue pathologic lesions of HE.
  
  
  CONCLUSIONS
  The results indicate that HBV infection develop in brain tissue from liver cirrhosis patients with hepatitis B and HBV may replicate in it. HBV infection in brain tissue may p lay an important role in occurrence and development of HE from liver cirrhosis patients with hepatitis B.
authors: Institute of Liver Disease, Jinan Military Region, The 88th Hospital of PLA, Taian 271000,China.
authors: Q
authors: Q
authors: Shang
authors: G
authors: G
authors: Zhang
authors: C
authors: C
authors: Xu
authors: C X
authors: CX
authors: Chen
authors: J G
authors: JG
authors: Yu
authors: C Y
authors: CY
authors: Yan
mesh_terms: D001921:Brain / Q000276:immunology / Q000821:virology*; D005260:Female; D006501:Hepatic Encephalopathy / Q000821:virology; D006511:Hepatitis B Antigens / Q000032:analysis*; D006512:Hepatitis B Core Antigens / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006515:Hepatitis B virus / Q000302:isolation & purification*; D019694:Hepatitis B, Chronic / Q000821:virology*; D006801:Humans; D007150:Immunohistochemistry; D008103:Liver Cirrhosis / Q000821:virology*; D008297:Male; D008875:Middle Aged; D014779:Virus Replication
chemical_list: D006511:Hepatitis B Antigens; D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens