1.
Bull Exp Biol Med
; 144(5): 734-6, 2007 Nov.
Article
in English
| MEDLINE
| ID: mdl-18683510
ABSTRACT
The rats were divided into groups demonstrating extremely high and low stress reactivity depending on the results of testing for the nociceptive threshold and thermolability in response to bacterial lipopolysaccharide administration. Specific structural features of the nucleus and mitochondria were revealed in neurons of the hypothalamic suprachiasmatic nucleus in rats with constitutionally high reactivity, which reflects high functional activity and stress-induced lability of these structures. Ultramicroscopic study revealed phenotypic differences in one of the key hypothalamic nucleus, which enables potent and rapid neurogenic response of the stress system in animals with high stress reactivity.
Subject(s)
Hypothalamus/ultrastructure , Neurons/ultrastructure , Stress, Physiological/physiopathology , Suprachiasmatic Nucleus/ultrastructure , Animals , Hypothalamus/cytology , Male , Microscopy, Electron, Transmission , Neurons/cytology , Rats , Restraint, Physical/adverse effects , Stress, Physiological/etiology , Suprachiasmatic Nucleus/cytology
2.
Biull Eksp Biol Med
; 121(5): 578-82, 1996 May.
Article
in Russian
| MEDLINE
| ID: mdl-8744144