Neonatal monosodium glutamate abolishes corticotropin-releasing factor-induced epileptogenic activity in rats.

Abstract:

:Intracerebroventricular (i.c.v.) injection of rat corticotropin-releasing factor (rCRF) at doses of 5-20 micrograms in rats induces epileptogenic activity characterized by pacemaker-like spikes localized in the hippocampal leads. Such an effect was still present in rats neonatally treated with saline but was absent in those neonatally treated with monosodium glutamate (MSG), a treatment that caused marked changes in the concentration of several brain neurotransmitters and neuropeptides in hypothalamic nuclei where CRF is highly concentrated and is believed to induce endocrinologic and behavioral effects. The present results suggest the rCRF-induced spiking activity is mediated by activation of neuronal pathways sensitive to MSG neurotoxic effect.

journal_name

Epilepsia

journal_title

Epilepsia

authors

Marrosu F,Argiolas A,Carcangiu P,Giagheddu M,Fratta W

doi

10.1111/j.1528-1157.1990.tb05510.x

subject

Has Abstract

pub_date

1990-11-01 00:00:00

pages

708-12

issue

6

eissn

0013-9580

issn

1528-1167

journal_volume

31

pub_type

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