ROLE OF BRAIN AMINES IN THE FATAL HYPERPYREXIA CAUSED BY TRANYLCYPROMINE IN LiCl-PRETREATED RATS
Open Access
- 1 January 1979
- journal article
- research article
- Published by Elsevier in The Japanese Journal of Pharmacology
- Vol. 29 (2), 161-170
- https://doi.org/10.1254/jjp.29.161
Abstract
Tranylcypromine (TCP), a monoamine oxidase inhibitor, caused a fatal hyperpyrexia in rats pretreated with LiCl once a day for 4 days. Pretreatment with LiCl alone did not alter the level of serotonin (5-HT). dopamine (DA) and norepinephrine (NE) in the brain. In the fatal hyperpyrexia caused by LiCl plus TCP, the brain 5-HT and DA levels were increased, whereas the brain NE level was decreased. Reserpine and α-methyl-p-tyrosine completely prevented the hyperpyrexia, but FLA-63 did not show any effect. The hyperpyrexia was completely prevented by p-chlorophenylalanine (PCPA) given 72 hours before TCP but not by PCPA given 24 hours before TCP. Haloperidol and chlorpromazine, DA receptor blockers, inhibited the fatal hyperpyrexia, while cyproheptadine and inethysergide, 5-HT receptor blockers, did not. These results suggest that DA plays an essential role in the hyperpyrexia induced by the combination of TCP and LiCl in rats, but the involvement of 5-HT is inconclusive.This publication has 24 references indexed in Scilit:
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