Keywords: D-آرژنین; ACSF; Artificial Cerebrospinal Fluid; d-AA; d-arginine; EGTA; ethylene glycol tetraacetic acid; HEPES; 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid; l-AA; l-arginine; l-NAME; N-nitro-l-arginine methyl ester; NO; nitric oxide; NOS; nitric oxide synth