...Olga Greengard; N. Lempert In rats carrying Walker carcinomas transplanted subcutaneously,splenomegaly (a 2- to 5-fold increase in spleen weight) is associated with striking increases (5- to 30-fold/g spleen) in the concentration of thymidine kinase. This may reflect active erythropoiesis since...

...F. Javier Rodriguez-Berrocal; M. Nieves Pérez-González; José A. Cabezas Two forms, I and II, of an acid ß-galactosidase from rabbit spleen were separated by DEAE-cellulose chromatography and then characterized. Both forms of the enzyme showed different heat-stability (form I being heat-labile...

..., spleen or liver lysosomal enzyme activities, whereas the 4 rats with cholestatic features exhibited considerable increases of lysosomal enzymes. The increased activities might be attributed to decreased biliary excretion and/or increased production of lysosomal enzymes by activated macrophages. 11 8...