Histochemical demonstration of sinusoidal γ‐glutamyltransferase activity by substrate protection fixation: Comparative studies in rat and guinea pig liver
António José Lanca, Yedy Israel – 1 November 1991 – Most histochemical methods for the detection of an enzymatic activity are preceded by tissue fixation with chemical agents that partially inactivate the enzymes. It is well known that substrates exert a marked protection against fixative‐induced inactivation.