title: [Effect of light and darkness on the size of pinealocyte nuclei in the cat].
abstract: For two days with an interval for one hour, karyometric investigation of pinealocytes has been performed in 46 cats (control group), in 24 cats kept in light and in 26 cats kept in darkness. Disturbances in natural light regimen produce certain pinocytic reaction manifested as distortion of the control rhythm.
mesh_terms: D000818:Animals; D002415:Cats; D002467:Cell Nucleus / Q000648:ultrastructure; D008027:Light; D010870:Pineal Gland / Q000648:ultrastructure*
vernacular_title: Vliianie sveta i temnoty na velichinu iader pinealotsitov koshki.