Pituicytes in normal and Jimpy Mice.

Neural lobes of control and "Jimpy" mice were examined electron microscopically. The ultrastructure and incidence of pituicytes was examined following reports of reductions in astrocyte and oligodendrocyte populations in areas of the CNS of Jimpy mice. The failure to demonstrate any modification of structure or numbers of the pituicytes in the affected animals suggests that the pituicytes are not as closely related to the satellite cells of the CNS as has previously been proposed.