[Study of the processes of lipid peroxidation in patients with endogenous psychoses using gas chromatography].

The processes of lipid peroxidation were studied in healthy subjects and patients with manic-depressive psychosis and schizophrenia using a non-invasive method based on chromatographic determination of endogenic pentane in the expired air. In patients with circular psychosis pentane concentration in the expired air did not differ from the norm, yet with advancing age it decreased (in contrast to an elevation in normal subjects). In schizophrenic patients pentane levels were significantly higher than in age-matched normal subjects. The level of the studied parameter was not correlated with the duration of the disease but showed a definite correlation with the severity of adverse disturbances in schizophrenia.