[Activity of gamma-glutamyltransferase in the cerebrospinal fluid in various forms of cerebral arachnoiditis].

Measurement of activity of gamma-glutamyl transferase (GGTF) in the cerebrospinal fluid (CSF) revealed a sharp elevation in the cytosis and activity of GGTF in the ventricular portion of the CSF, which points to dystrophic changes in nerve cells and damage of their membranes and, consequently, to an increase in the permeability of the blood-brain barrier. Determination of GGTF activity in the CSF may be recommended as a supplemental method of the differential diagnosis of cerebral meningites.