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Alpha-1-antitrypsin deficiency in adults
Acta Pathologica Japonica
|August 1, 1986
Summary
Alpha-1-antitrypsin (ATT) deficiency patients with liver cirrhosis showed hepatocyte inclusions. Combined effects of ATT inclusions and stimuli like alcohol or viral hepatitis may increase cirrhosis susceptibility.
Area of Science:
- Hepatology
- Genetics
- Pathology
Background:
- Alpha-1-antitrypsin (ATT) deficiency is a genetic disorder that can lead to liver disease.
- Clinicopathological examinations are crucial for understanding the pathogenesis of ATT deficiency-related liver conditions.
Observation:
- Eight adult patients with ATT deficiency (PiMZ, PiZ-, PiZZ genotypes) were examined.
- Six patients had cirrhosis, with four reporting excessive ethanol consumption.
- Hepatitis B surface antigen was positive in two cirrhotic patients; dysplastic changes were noted in four.
Findings:
- All patients exhibited periodic acid-Schiff positive, diastase-resistant inclusions in hepatocytes, identified as ATT.
- These ATT inclusions are a hallmark of ATT deficiency in liver tissue.
Implications:
- ATT inclusions may sensitize hepatocytes to damage from co-factors like alcohol or viral hepatitis.
- This interaction could be a key factor in the development of liver cirrhosis in ATT deficiency.