title: Peripheral blood lymphocytes DNA in patients with chronic liver diseases.
abstract: BACKGROUND
  Viral replication in blood cells with nucleases may lead to the damage of lymphocytes genetic apparatus and the beginning of immunopathological reactions.
  
  
  OBJECTIVE
  Of this investigation is to reveal the damage to peripheral blood lymphocytes (PBL) DNA in the patients with chronic liver diseases.
  
  
  METHODS
  Sixteen-nine patients with chronic liver diseases (37 patients with chronic viral hepatitis, 2 patients with liver cirrhosis of mixed etiology (alcohol+virus G), 30 women with primary biliary cirrhosis-PBC) were examined. The condition of DNA structure of PBL was measured by the fluorescence analysis of DNA unwinding (FADU) technique with modification. Changes of fluorescence (in %) reflected the DNA distractions degree (the presence of DNA single-stranded breaks and alkalinelabile sights).
  
  
  CONCLUSIONS
  The quantity of DNA single-stranded breaks and alkalinelabile sights in DNA in all patients with chronic viral hepatitis didn't differ from the control group, excluding the patients with chronic hepatitis (CH) C+G. Patients with HGV and TTV monoinfection had demonstrated the increase of the DNA single-stranded breaks PBL quantity. This fact may be connected with hypothesis about the viruses replication in white blood cells discussed in the literature. Tendency to increase quantity of DNA PBL damages in the patients with primary biliary cirrhosis (PBC) accordingly to the alkaline phosphatase activity increase was revealed. Significant decrease of the DNA single-stranded breaks and alkalinelabile sights in the PBC patients that were treated with prednisone was demonstrated. Probably, the tendency to increase the quantity of DNA single stranded breaks and alkalinelabile sights in lymphocytes of the PBC patients was depended on the surplus of the blood bile acid content.
authors.affiliation: the Central Research Institute of Gastroenterology, shosse Entuziastov 86, Moscow, Russia. entero@aha.ru
authors.forename: V I
authors.initials: VI
authors.lastname: Reshetnyak
authors.forename: T I
authors.initials: TI
authors.lastname: Sharafanova
authors.forename: L U
authors.initials: LU
authors.lastname: Ilchenko
authors.forename: E V
authors.initials: EV
authors.lastname: Golovanova
authors.forename: G G
authors.initials: GG
authors.lastname: Poroshenko
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000469:Alkaline Phosphatase / Q000097:blood; D002908:Chronic Disease; D004249:DNA Damage; D005260:Female; D006521:Hepatitis, Chronic / Q000097:blood; D006525:Hepatitis, Viral, Human / Q000097:blood; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000737:chemistry*; D008103:Liver Cirrhosis / Q000097:blood; D008105:Liver Cirrhosis, Biliary / Q000097:blood; D008107:Liver Diseases / Q000097:blood*; D008297:Male; D008875:Middle Aged
chemical_list: D000469:Alkaline Phosphatase