We carried out a study with 150 patients suffering from endogenous psychosis in order to confirm earlier findings of an association between HLA and various psychiatric syndromes. Our sample consisted of 107 schizophrenics, 25 patients with recurrent endogenous major depressive disorder, and 18 schizoaffectives. A significant excess of HLA B27 was found among schizophrenics with a family history of endogenous psychosis. This association is consistent with reported earlier studies. The preliminary data on the schizoaffective sample suggest a positive association with HLA B7. The data on patients with endogenous major depressive disorder failed to identify an association with HLA.
We carried out a study on 63 patients suffering from alcoholism in order to determine the frequency of 27 HLA antigens. In comparison to healthy blood donors no significant deviation of HLA distributions in alcoholics was found. The data on alcoholic patients with physical consequences such as cerebral seizures, liver cirrhosis and polyneuropathy failed to identify an association with HLA.
A micro enzyme-linked immunosorbent assay (ELISA), using lyophilized stroma as carrier of red blood cell antigens, which stays stable longer than usual, using intact erythrocytes, was developed for determination of blood-group antibodies in the ABO, Kell and Lewis-systems. Stroma being fixed on microtiter plates was incubated with antisera and peroxidase-conjugated anti-human globulin. The transformation of the substrate added was determined photometrically. A binding of antibodies to the stroma could be demonstrated up to an antibody dilution of 1:1024 for the ABO-system, of 1:512 for the Kell-system and of 1:64 for the Lewis-system. By standardization of this method the quantitative determination of antibodies becomes possible without being restricted by the limited stability of intact erythrocytes.
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