THE EFFECTS OF LEAD AND FIXATIVES ON ACTIVITY OF GLUTAMIC OXALACETIC TRANSAMINASE
1 Department of Pathology, New York Hospital-Cornell Medical Center, New York, New York
Lead oxalacetate, a primary reaction product precipitate for the visualization of the activity of glutamic oxalacetic transaminase in tissue sections, is stable at a slightly alkaline pH. At concentrations which are used for tissue fixation a slight inhibitory effect on glutamic oxalacetic transaminase activity is produced by acetone while a glutaraldehyde-formaldehyde mixture results in marked reduction of activity. The concentration of lead which is used to form the primary reaction product does not significantly inhibit this enzyme activity. Submitted on August 14, 1967
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