Abstract
Glutamate, through activation of NMDA receptors, is capable of enhancing the nitric oxide (NO) synthesis. Over the last years, the involvement of the NMDA-NO pathway in the neurobiology of depression has been described. The use of NMDA antagonists, like ketamine, or NO synthesis inhibitors, such as 7-NI, produce antidepressant-like effects in animals, reinforcing the potential of glutamat…