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- W1985865290 abstract "Les effets de l'électrostimulation de la pars intercerebralis (PI) ont été analysés chez le criquet africain Locusta migratoria migratorioides en comparant chez des animaux témoins et des animaux stimulés: (1) Les radioactivités des PI (ensemble des péricaryones neurosécréteurs médians) et des régions neurohémales des corpora cardiaca (CC renfermant les extrémités axoniques des cellules neurosécrétrices médianes CNS-M) après injection de cystéine 35S. (2) La maturation sexuelle. L'électrostimulation de la PI: provoque la diminution du produit de neurosécrétion en stockage dans les extrémités axoniques et dans les péricaryones des CNS-M; augmente l'activité de synthèse des péricaryones neurosécréteurs médians; augmente la quantité du produit de neurosécrétion transporté aux CC. II semble que la vidange des péricaryones ne soit pas directement associée à leur électrostimulation mais à la libération du produit de neurosécrétion aux extrémités axoniques. L'électrostimulation de la PI avance la maturité sexuelle dans les 2 sexes. Ces résultats radiochimiques et physiologiques montrent que l'électrostimulation des CNS provoque leur activation. The pars intercerebralis (PI) of the African locust (Locusta migratoria migratorioides) was stimulated electrically and the effects of this on (a) radioactivity of the PI (median) neurosecretory cell bodies) and corpora cardiaca (containing the axon terminals of these cells), and (b) sexual maturation were studied. Electrical stimulation of the PI induces: (1) A quantitative decrease in neurosecretory material in the median neurosecretory cells (axon terminals and cell bodies); (2) An increase in synthetic activity of the median neurosecretory cell bodies; (3) An increase in neurosecretory material transported to the corpora cardiaca. It seems that a quantitative decrease in neurosecretory material in the cell bodies is not directly associated with electrostimulation but with release at the axon terminals. Pars intercerebralis electrostimulation accelerates male and female maturation. These radiochemical and physiological results show that electrostimulation induces activation of the neurosecretory cells." @default.
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- W1985865290 date "1975-04-01" @default.
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- W1985865290 title "Preuves radiochimiques et physiologiques d'une activation par électrostimulation des cellules neurosécrétrices de la pars intercerebralis chez Locusta migratoria (insecte orthoptère)" @default.
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- W1985865290 doi "https://doi.org/10.1016/0016-6480(75)90152-5" @default.
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