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 Migraine Congress highlights Preventive treatment gaps and priorities in migraine Mental Health Congress highlights Social isolation and stigma: Cross-cultural perspectives Migraine Satellite symposium Expert insights into medication overuse headache