MOLECULAR EFFECTS of lithium
Mol. Interv. 2004 4: 259-272.
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Although the usefulness of lithium in the treatment of bipolar affective disorder was discovered over fifty years ago, only recently have many of the molecular targets for lithiums action been identified, including glycogen synthase kinase-3 (GSK-3) and neurotrophic signaling cascades. These observations may lead to a new understanding of the underpinnings of bipolar disorder and will likely support the use of lithium in the management and treatment of neurodegenerative disorders. Multiple lines of investigation have established lithiums direct effects on several phosphatases, kinases, and other enzymes, and have also indicated lithiums indirect effects on downstream targets, including adenylate cyclase, the phosphoinositol cascade and protein kinase C, and arachidonic acid metabolism. There is also experimental momentum behind the hypothesis that lithium mediates neurotrophic effects.