Lithium modulates multiple neurological pathways: (1) GSK-3β inhibition, the primary mood-stabilizing mechanism; glycogen synthase kinase-3β regulates neuroplasticity, circadian rhythm, and apoptosis; (2) inositol monophosphatase (IMPase) inhibition, reduces inositol recycling, dampening overactive phosphoinositide signaling in mood circuits; (3) neuroprotective, increases BDNF, promotes neurogenesis in hippocampus, increases gray matter volume; (4) anti-suicidal, mechanism unclear but lithium reduces suicide risk independently of mood stabilization. The orotate salt was hypothesized to cross cell membranes more readily than carbonate (lipophilic carrier theory), but this has NOT been confirmed in any human pharmacokinetic study.
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Not medical advice. Based on published clinical research and systematic reviews.