Neutrophils in chronic active hepatitis type B.

Area of Science:

• Hepatology
• Gastroenterology
• Immunopathology

Background:

• Chronic active hepatitis B (CAHB) is a significant liver disease.
• Understanding the role of inflammatory cells, like neutrophils, is crucial for CAHB pathogenesis.

Purpose of the Study:

• To determine the incidence of neutrophilic infiltration in portal tracts and septa in CAHB.
• To investigate the relationship between neutrophilic infiltration and other histopathological features and liver function tests.

Main Methods:

• Analysis of liver biopsy specimens from 95 patients with CAHB.
• Histopathological evaluation for neutrophilic infiltration, ductular reaction, and piecemeal necrosis.
• Statistical analysis including multiple-regression and partial correlation.

Main Results:

• Neutrophils were found in 62% of cases, with significant infiltration (>6 neutrophils/HPF) in 7.4%.
• Neutrophilic infiltration correlated significantly with marginal duct proliferation, bile duct proliferation, and elevated alanine aminotransferase.
• No relationship was found between neutrophilic infiltration and piecemeal necrosis after controlling for ductular proliferation.

Conclusions:

• Neutrophilic infiltration is a frequent finding in CAHB, associated with bile duct changes.
• The study suggests a sequence where piecemeal necrosis leads to bile duct proliferation, subsequently causing neutrophil accumulation.