Background: Most drugs that treat mood disorders take a long time to work. Ketamine works within hours. A dose can last for a week or more. Certain receptors in the brain might help ketamine work. A drug that blocks these receptors might affect how it works.

Summary: Glioblastoma is the most common and aggressive form of brain cancer in adults. Despite surgery, radiotherapy, and chemotherapy, most patients only live about one year after diagnosis. There is an urgent need for new and better treatments. Recent research has shown that glioblastoma cancer cells communicate with surrounding brain cells through electrical signals that help the tumor grow and resist ...

Summary: The purpose of this study is to test the hypothesis that the anti-depressant and anti-suicidal effects of the N-methyl-D-aspartate receptor (NMDAR) antagonist Ketamine is critically dependent on stimulation of Alpha-Amino-3-Hydroxy-5-Methyl-4-Isoxazole Propionic Acid receptors (AMPAR).