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In 198 patients with chronic liver diseases of different etiology 16 genetic feature systems were investigated (blood groups, erythrocytic enzymes, immunoglobulin allotypes, proteins). In comparison to a representative normal population significant differences of the frequency of the distribution of phenotypes of various systems were found. In these cases is remarkable that association between genetic markers and hepatopathies were above all proved in their classification according to etiopathogenetic criteria. We evaluate our findings as a reference to the importance of genetic factors in the development of chronic liver diseases.

The haptoglobin phenotype has been estimated in patients suffering from chronic liver disease (n = 222) and acute hepatitis (n = 59) in comparison with the haptoglobin pattern of a normal population (n = 1726). The frequency of Hp 1-1 was significantly increased in non-alcoholic chronic liver disease (p = 5%; chi 2-test) in contrast to alcoholic disease. The highest incidence of Hp 1-1 occurred in cryptogenic cases (p = 1%). The follow-up of patients suffering from acute hepatitis failed to indicate any relationship between the haptoglobin phenotype and the course of hepatitis. The results suggest that Hp 1-1 is a genetic marker of special kinds of chronic liver diseases.