101. Stress and corticotropin-releasing factor potentiate center region activity of mice in an open field
- Author
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Yu Ping Tang, C. Y. Chai, and Eminy H.Y. Lee
- Subjects
Male ,Restraint, Physical ,endocrine system ,medicine.medical_specialty ,medicine.drug_class ,Ratón ,Corticotropin-Releasing Hormone ,Central nervous system ,Peptide hormone ,Motor Activity ,Open field ,chemistry.chemical_compound ,Mice ,Stress, Physiological ,Internal medicine ,medicine ,Animals ,Neurotransmitter ,Amphetamine ,Injections, Intraventricular ,Pharmacology ,Benzodiazepine ,Analysis of Variance ,Electroshock ,Mice, Inbred BALB C ,Diazepam ,medicine.anatomical_structure ,Endocrinology ,chemistry ,hormones, hormone substitutes, and hormone antagonists ,medicine.drug - Abstract
The effects of corticotropin-releasing factor (CRF) and previously published effect of stress on the locomotor activity of mice in different regions of an open field were compared. Intracerebroventricular (ICV) administration of 0.2 microgram CRF, like stress, significantly increased center region activity; this effect was reversed by the benzodiazepine diazepam (DZP) at a dose of DZP having no significant effect alone. A dose of DZP that antagonized CRF-potentiated center region activity did not block amphetamine-stimulated center area activity. These results suggest that CRF may normally be responsible for many behavioral changes during conditions of stress.
- Published
- 1987