Abstract
The possible role of nitric oxide (NO) in CGRP-induced passive avoidance, active avoidance, and open field behavior was tested in rats. A specific NO synthase inhibitor, N omega-nitro-L-arginine (L-NA), was used to disrupt NO synthesis. ICV administration of 5 micrograms of L-NA reversed the action of CGRP in passive and active avoidance tests. In an open field, L-NA prevented the action of CGRP on locomotion and grooming. The inactive isomer D-NA had no effect on behavior of animals. The data suggest that NO might contribute to CGRP-induced behavior in rats.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Animals
-
Calcitonin Gene-Related Peptide / physiology*
-
Enzyme Inhibitors / administration & dosage
-
Grooming / drug effects
-
Grooming / physiology*
-
Injections, Intravenous
-
Locomotion / drug effects
-
Locomotion / physiology*
-
Male
-
Nitric Oxide / antagonists & inhibitors
-
Nitric Oxide / physiology*
-
Nitric Oxide Synthase / antagonists & inhibitors
-
Nitroarginine / administration & dosage
-
Rats
-
Rats, Wistar
Substances
-
Enzyme Inhibitors
-
Nitroarginine
-
Nitric Oxide
-
Nitric Oxide Synthase
-
Calcitonin Gene-Related Peptide