Low Ca2+ aCSF contains the same ingredients except for MgCl2 at a concentration of 3.2 mM and CaCl2 at a concentration of 0.1 mM. Dissociated cells can be placed into any known culture medium capable of supporting cell growth, including MEM, DMEM, RPMI, F-12, and the like, containing supplements which are required for cellular metabolism such as glutamine and other amino acids, vitamins, minerals