[Diagnostic value of aspartate aminotransferase in the cerebrospinal fluid]

As datum, the range of aspartate aminotransferase in the cerebrospinal fluid of adults was determined on the basis of 153 fluid samples and compared with the values obtained from 356 neurological patients. A significant increase in enzyme activity was established in respect of CVI, polyneuropathy, acute encephalitis, and SAB. It was possible to eliminate any dependence of the aspartate aminotransferase activity on serum activity, total protein, and cell count. The increase in activity of aspartate aminotransferase in the cerebrospinal fluid is thus identified as an independent pathological fact, and thus it can be incorporated in diagnostic routine more particularly in the diagnosis of CVI disorders.