Researchers analyzed gene activity in over 900 brain samples and over 600 blood samples from people with and without bipolar disorder. They looked for patterns in which genes were more or less active. This type of study is called a meta-analysis, which combines data from many previous studies to look for common themes.
The analysis found that in people with bipolar disorder, groups of genes involved in cellular energy production, stress response, brain cell communication, and inflammation showed different activity levels. The study also pointed to specific genes that existing drugs might be able to target. Importantly, the brain samples studied were from postmortem tissue, and the blood samples were from separate groups of people.
This research provides a detailed map of biological pathways that may be involved in bipolar disorder. However, it is an observational study of tissue samples, not a test of new treatments. It shows associations, not causes, and does not measure how people feel or function. The findings are a valuable guide for future research into the biology of the condition and for developing new treatment ideas, but they are not yet ready for use in the clinic.