Effects of L-arginine and of its functional antagonist N-nitro-L-arginine on the behavior of rats, with special reference to motor activity
- 24 Downloads
L-arginine and N-nitro-L-arginine were tested for their effects on the motor activity of white rats under conditions of free behavior. After oral administration of L-arginine in doses of 50 to 500 mg/kg, the horizontal and vertical components of motor activity were increased both at minute 10 and at 24 h postadministration. N-nitro-L-arginine, on the contrary, reduced the motor activity of rats (mainly its horizontal component). Oral administration of L-arginine 5 min after an intraperitoneal injection of N-nitro-L-arginine did not prevent the effects of the latter compound. The observed behavioral changes probably resulted from the combined action of two mechanisms, namely a direct influence of nitric oxide on brain cells and its action on peripheral systems of the body.
Key Wordsarginine arginine analogs nitric oxide locomotor activity
Unable to display preview. Download preview PDF.