This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Go to /pro/cpd-dashboard page

This page is worth 0.05 CPD credits. CPD dashboard

Go to /account/subscription-details page

This page is worth 0.05 CPD credits. Upgrade to Pro

Biochemical correlates of depression

Authoring team

The monoamine theory of depression proposes that serotonin and noradrenalin function are reduced in depression.

The evidence is indirect but there are four main findings:

  • levels of the metabolite of serotonin (5HIAA) are reduced in the CSF of patients with depression
  • post-mortem studies of patients dying with depression show reduced levels of serotonin
  • neurendocrine functions mediated by serotonin are suppressed in depression
  • selective serotonin reuptake inhibitors are effective antidepressant drugs

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.