Depression Genetics in Africa (DepGenAfrica)

A network of African and UK researchers is collecting and analysing genetic data from thousands of people with depression across multiple African countries, where almost no such data currently exists. This matters because nearly all large-scale genetic studies of depression have been done in people of European ancestry. The findings may not apply to African populations, yet depression is a leading cause of disability worldwide, and health disparities are growing. Without data from African cohorts, clinicians cannot know whether genetic risk scores or biological insights from European studies are relevant to African patients. If the project succeeds, it will reveal whether the genetic architecture of depression is similar across African countries and whether it mirrors European patterns. This could eventually improve risk prediction and treatment targeting for people of African ancestry. In the longer term, the network and research capacity built through this work will enable future studies of other psychiatric conditions in African populations. The project is primarily fundamental science—it asks a basic question about the biology of depression across human populations. But that knowledge is a prerequisite for any future clinical applications, from more accurate diagnostics to targeted therapies, in populations that have been systematically excluded from psychiatric genetics.