Alterations in acylcarnitines, amines, and lipids inform about the mechanism of action of citalopram escitalopram in major depression Translational Psychiatry The Rockefeller University Lack of a single molecule may indicate severe and treatment resistant depression Frontiers Carnitine and Depression Exploring Zn(II) Acetyl l carnitine complex for simultaneous management of depression, chronic pain, and neuroprotection ScienceDirect