Depression 18 Jan, 2019 Does glutamate hold the key to unlocking major depressive disorder? Read the full feature here. Does glutamate hold the key to unlocking major depressive disorder? Sign up for Progress in Mind Portugal newsletter Sign up for our newsletter and stay updated on new content and resources. Related Depression Article Brain circuits in depression and response to pharmacotherapy Mental Health Congress highlights Perspectives on the future of psychiatry: treatment and training Depression Congress highlights Reconceptualising treatment-resistant depression as difficult-to-treat depression