[Characteristics of heterochromatin of heterophase nuclei from interphase neurons of various brain structures selected for the nervous system excitability].
Quantitative characteristics (the area and number of chromocenters) of the interphase C-heterochromatin in the nuclei of pyramidal neurons of the midbrain reticular formation, sensorimotor cortex, and hippocampus (CA3) of rat strains with different genetically determined excitability were studied in the normal state of the animals and after exposure to a short-term emotional pain stress. The results indicate a relationship between the excitability of the nervous system and structural-functional state of the neuronal interphase heterochromatin. The role of cytogenetic features of different brain structures in the CNS functioning and behavior and their relation with genetically determined excitability of the nervous system are discussed.
Diuzhikova
N A
NA
Pavlov Institure of Physiology, Russian Academy of Sciences, St. Petersburg.
Sokolova
N E
NE
Vaĭdo
A I
AI
Shiriaeva
N V
NV
Lopatina
N G
NG
Levkovich
Iu I
IuI
D000818:Animals; D001921:Brain / Q000648:ultrastructure*; D002467:Cell Nucleus / Q000648:ultrastructure*; D006570:Heterochromatin / Q000648:ultrastructure*; D006624:Hippocampus / Q000648:ultrastructure; D007399:Interphase; D008297:Male; D008636:Mesencephalon / Q000648:ultrastructure; D009044:Motor Cortex / Q000648:ultrastructure; D009424:Nervous System Physiological Phenomena; D010812:Physical Stimulation; D017966:Pyramidal Cells / Q000648:ultrastructure*; D051381:Rats; D012154:Reticular Formation / Q000648:ultrastructure; D012641:Selection, Genetic; D013003:Somatosensory Cortex / Q000648:ultrastructure; D013315:Stress, Psychological / Q000473:pathology
D006570:Heterochromatin
Kharakteristika geterokhromatina interfaznykh iader neĭronov razlichnykh struktur golovnogo mozga krys, selektirovannykh po vozbudimosti nervnoĭ sistemy.