title: Diurnal rhythm of hypophyseal cells in mice. Part III. Pars nervosa.
abstract: Karyometric analysis revealed a distinct diurnal rhythmicity of the nuclear volume of pars nervosa pituicytes in mice maintained on a 12 h light:dark schedule. Maximum nuclear volumes of pituicytes in both males and females were observed at 1800 o'clock while the minimum ones at 1200 o'clock. In addition, a distinct rhythm was observed in the amount of lipid vacuoles in the pituicytes of both sexes; they showed two peaks, a larger one at 1800 and a smaller one at 600 o'clock, as well as two minima at 1200 and 2400 o'clock.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D002940:Circadian Rhythm; D005260:Female; D007620:Karyometry; D008055:Lipids / Q000032:analysis; D008297:Male; D051379:Mice; D009489:Neurosecretion; D010904:Pituitary Gland, Posterior / Q000166:cytology* / Q000648:ultrastructure; D014617:Vacuoles / Q000648:ultrastructure
chemical_list: D008055:Lipids