Subcellular localization of newly formed [3H]acetylcholine in rat cerebral cortex in vitro

Slices from rat brain cortex were incubated for either 5 or 60 min in a medium containing [3H]choline and 4.7 or 25 mM KCl. Bioassayable ACh and labelled ACh were determined in the incubation medium, in the total tissue homogenate and in subcellular fractions. Raising the KCl concentration from 4.7 to 25 mM stimulated the release and synthesis...

Elektronenmikroskopische Untersuchung von Asbestkörperchen und Asbestfasern in der Lunge eines Mesotheliom-Patienten [Investigation of asbestos bodies and asbestos fibers found in the lungs of a mesothelioma patient by electron microscopy]

Asbestos bodies and asbestos fibers were found in the lungs of a mesothelioma patient and analysed by electron microscopy. The bodies were normal asbestos bodies with amphibole-asbestos fibers as kernels. The free asbestos fibers, present in the lungs, mainly were chrysotile-asbestos. © 1973 Springer-Verlag. Chemicals/CAS: asbestos, 1332-21-4;...

Identification of cells in primate bone marrow resembling the hemopoietic stem cell in the mouse

The colony forming unit culture (CFU C) in the thin layer agar colony technique is considered to be representative for hemopoietic stem cells (HSC), according to studies in mouse and monkey bone marrow. Using this in vitro assay as a guide, stem cell concentrates were prepared from monkey and human bone marrow by repeated density gradient...

Incomplete sedimentation of Rauscher leukaemia virus particles during ultracentrifugation