Sidney Weinhouse

I. IntroductionProbably no other excretion products offer more promise for the early diagnosis of human cancer than the diverse patterns of urinary enzymes and isozymes. The normal excretion of the urinary amylases, phosphatases, proteases, catalases, esterases, and other enzymes may be altered...

therefore, important to summarize briefly somé of the factors which may affect the observed activity of an enzyme system. Enzyme profiles of animal tissues are generally obtained by the use of preparations of tissue slices, homogenates, subcellular fractions, or extracts. Any given enzyme activity...