title: [Enzyme activities in platelets of different specific gravity in thrombocytosis of various etiology (author's transl)].
abstract: Platelets of patients with thrombocytosis following splenectomy, in chronic granulocytic leukaemia and in polycythaemia vera were separated into five fractions by centrifugation in discontinuous Ficoll density gradient. Platelet volume, content of protein and enzyme activities of lactic dehydrogenase, phosphoglycerate kinase and glyceraldehyde phosphate dehydrogenase were distinctly higher for the three groups in the heavy fraction IV compared with the light fraction I. With regard to the platelet volume, however, these differences were compensated almost completely like in the normal persons.
mesh_terms: D001791:Blood Platelet Disorders / Q000201:enzymology*; D001792:Blood Platelets / Q000201:enzymology*; D004798:Enzymes / Q000097:blood*; D006801:Humans; D007951:Leukemia, Myeloid / Q000201:enzymology; D011087:Polycythemia Vera / Q000201:enzymology; D013156:Splenectomy
chemical_list: D004798:Enzymes
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vernacular_title: Enzymaktivitäten und Proteingehalt von Thrombozyten verschiedener Dichte bei Thrombozytosen unterschiedlicher Atiologie.