Helicobacter pylori infection in patients with Hepatitis C Virus positive chronic liver diseases.
OBJECTIVE
One-third of patients with liver cirrhosis suffers from acute peptic ulcer, a disease strongly correlated with Helicobacter pylori (H. pylori) infection. We report the seroprevalence of antibodies to H. pylori in 179 patients with Hepatitis C Virus (HCV)-related chronic active hepatitis and cirrhosis.


METHODS
Among patients, 135 (86 males and 49 females, mean age 51.2 +/- 13.28, range 27-77 years) had chronic active hepatitis (CAH) and 44 cirrhosis (28 males and 16 females, mean age 62.4 +/- 9.2, range 37-77 years). Serum antibodies to H. pylori were tested using a commercial enzyme immunosorbent assay. The control population consisted of 619 consecutive blood donors (523 males, 96 females, mean age 47 +/- 5.3 years, range 18-65).


RESULTS
The overall prevalence of antibodies to H. pylori was 73.1% (131/179) among patients and 47% (291/619) among blood donors (p<0.0001; OR 3.08 [95%CI, 2.10-4.51]). 70.5% (24/34) of patients aged less than 40 years were seropositive for H. pylori versus 34.2% (90/263) of controls (p<0.0001; OR 4.61[95%CI, 2.0-10.85]). Among cirrhosis patients, the prevalence of antibodies to H. pylori was 79.5% (35/44) versus 47% (291/619) of controls (p<0.0001; OR 4.38 [95%CI, 1.98-9.98]). Overall seroprevalence among CAH patients was 71.1% (96/135) versus 47% (291/619) of blood donors (p<0.0001; OR 2.77 [95%CI, 1.82-4.24]).


CONCLUSIONS
The high seroprevalence of antibodies to H. pylori in patients with HCV-positive liver diseases explains the elevated incidence of peptic ulcer, and warrants studies on the pathogenic role in human liver diseases of Helicobacter spp which is known to cause chronic hepatitis and hepatocellular carcinoma in mice.
Ponzetto
A
A
Department of Internal Medicine, University of Turin.
Pellicano
R
R
Redaelli
A
A
Rizzetto
M
M
Roffi
L
L
D000328:Adult; D000368:Aged; D000907:Antibodies, Bacterial / Q000097:blood; D005260:Female; D016481:Helicobacter Infections / Q000453:epidemiology* / Q000276:immunology; D016480:Helicobacter pylori; D019698:Hepatitis C, Chronic / Q000453:epidemiology*; D006801:Humans; D008103:Liver Cirrhosis / Q000453:epidemiology / Q000821:virology; D008297:Male; D008875:Middle Aged; D016036:Seroepidemiologic Studies
D000907:Antibodies, Bacterial