A blood test for mood disorders that enables better diagnosis and treatment may be feasible by extracting RNA to measure the expression of various genes identified as biomarkers for either manic or depressive moods.

References and Resources
Le-Niculescu H, et al. Identifying blood biomarkers for mood disorders using convergent functional genomics. Mol Psychiatry. 2008; DOI: 10.1038/mp.2008.11.

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