Morphometric analysis of supraoptic neurons of the rat hypothalamic nuclei under conditions of prolonged illumination

The article reviews the results of studies morphofunctional state neurons supraoptic nuclei rat hypothalamus under conditions different duration light regime. Under standard regime in rats, a diurnal rhythm activity nucleus with maximum during daytime (before 2 p.m.) is recorded.
 In animals subjected to prolonged exposure, more pronounced changes at a.m. than p.m. were established. Thus, neuronal area was 94.08 ± 9.55 μm2 and significantly greater that intact animals. nucleo-cytoplasmic ratio hypothalamic neuron lower due decrease specific volume. comparison day period (2 p.m.), before there revealed body possible nucleolus cells. This reason for increase observation night, which 2.51 0.023 units. Constant did not cause inversion study, values, as animals, occurred period.