Blood test breakthrough could detect major depression using serotonin marker

AI Insight

Researchers developed a dispersive liquid-liquid microextraction method combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) to measure 5-hydroxyindoleacetic acid (5-HIAA) levels in blood plasma. The method was validated and applied to evaluate 5-HIAA as a potential biomarker for major depressive disorder, a metabolite of serotonin that may reflect serotonergic dysfunction in depression.

Why it matters

This analytical technique could enable more accurate measurement of serotonin metabolism in psychiatric patients, potentially improving diagnosis or monitoring of major depressive disorder. The microextraction approach offers a more efficient and environmentally friendly alternative to traditional sample preparation methods for clinical laboratories.