[Morpho-functional status of large-cell hypothalamic nuclei following chronic exposure to wide-range electromagnetic impulses].
In a experiment with white nubilous male rats the morphofuntional state of secretory neurons (SN) of the large-cell hypothalamic nuclei (LCHN) was evaluated with the morphological, morphometric and statistical methods following electromagnetic exposure (500, 100 and 50 impulses once a week) inducing in the animal body the averaged current densities of 1.5 kA/m2. It was stated that 100 EMI a week called forth opposite LCHN reactions, that is suppression of synthesis and elimination of SN neuro-secret in supraoptic nuclei and their activation in the paraventricular nuclei. LCHN reaction to the other frequencies of EM impulses was uniform and included rearrangement of both neurosecretory centers for a lower functional activity. Decrease in the number of effectively functioning SN due to the EM exposure may point to a dead-aptive effect of this factor.
Popov
S S
SS
Dolzhanov
A Ia
AIa
Zuev
V G
VG
D000220:Adaptation, Biological / Q000502:physiology; D000818:Animals; D004302:Dorsomedial Hypothalamic Nucleus / Q000378:metabolism / Q000503:physiopathology; D055590:Electromagnetic Phenomena; D007026:Hypothalamic Area, Lateral / Q000378:metabolism / Q000503:physiopathology; D007031:Hypothalamus / Q000378:metabolism* / Q000503:physiopathology*; D008297:Male; D051381:Rats