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Intraventricular injection of vasoactive intestinal polypeptide facilitates the development of amygdaloid kindling
T Funabashi1, H Hiruma, J Arita
1Department of Physiology, Yokohama City University, School of Medicine, Japan.
To determine the involvement of vasoactive intestinal polypeptide (VIP) in the development of kindling in rats, VIP or antibody to VIP (anti-VIP) was injected into the third ventricle after the daily stimulation of the basolateral amygdala. The number of stimulations required to reach full amygdaloid kindling was significantly smaller in rats treated with VIP than rats treated with saline, whereas it increased significantly in rats treated with anti-VIP compared to that in the rats treated with either saline or normal rabbit serum. The results suggest that VIP participates in the development of amygdaloid kindling as a facilitatory factor.
To determine the involvement of vasoactive intestinal polypeptide (VIP) in the development of kindling in rats, VIP or antibody to VIP (anti-VIP) was injected into the third ventricle after the daily stimulation of the basolateral amygdala. The number of stimulations required to reach full amygdaloid kindling was significantly smaller in rats treated with VIP than rats treated with saline, whereas it increased significantly in rats treated with anti-VIP compared to that in the rats treated with either saline or normal rabbit serum. The results suggest that VIP participates in the development of amygdaloid kindling as a facilitatory factor.