Document Detail


Overview of the mechanism of action of lithium in the brain: fifty-year update.
MedLine Citation:
PMID:  10826655     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Since its discovery, lithium has been shown to act upon various neurotransmitter systems at multiple levels of signaling in the brain. Lithium, affecting each neurotransmitter system within complex interactive neuronal networks, is suggested to restore the balance among aberrant signaling pathways in critical regions of the brain. Recent molecular studies have revealed the action of lithium on signal transduction mechanisms, such as phosphoinositide hydrolysis, adenylyl cyclase, G protein, glycogen synthase kinase-3beta, protein kinase C, and its substrate myristoylated alanine-rich C kinase substrate. Such effects are thought to trigger long-term changes in neuronal signaling patterns that account for the prophylactic properties of lithium in the treatment of bipolar disorder. Through its effects on glycogen synthase kinase-3beta and protein kinase C, lithium may alter the level of phosphorylation of cytoskeletal proteins, which leads to neuroplastic changes associated with mood stabilization. Chronic lithium regulates transcriptional factors, which in turn may modulate the expression of a variety of genes that compensate for aberrant signaling associated with the pathophysiology of bipolar disorder. Future studies on long-term neuroplastic changes caused by lithium in the brain will set the stage for new drug-discovery opportunities.
Authors:
R H Lenox; C G Hahn
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; Review    
Journal Detail:
Title:  The Journal of clinical psychiatry     Volume:  61 Suppl 9     ISSN:  0160-6689     ISO Abbreviation:  J Clin Psychiatry     Publication Date:  2000  
Date Detail:
Created Date:  2000-05-31     Completed Date:  2000-05-31     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  7801243     Medline TA:  J Clin Psychiatry     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  5-15     Citation Subset:  IM    
Affiliation:
Department of Psychiatry, University of Pennsylvania, Philadelphia 19104-6140, USA. rlenox@mail.med.upenn.edu
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MeSH Terms
Descriptor/Qualifier:
Bipolar Disorder / drug therapy,  metabolism,  physiopathology
Brain / drug effects*
Brain Chemistry / drug effects
Cytoskeletal Proteins / drug effects,  metabolism
GTP-Binding Proteins / drug effects,  metabolism
Gene Expression / drug effects
Humans
Ion Transport / drug effects
Lithium / pharmacokinetics,  pharmacology*,  therapeutic use
Neuronal Plasticity / drug effects
Neuropeptides / drug effects,  physiology
Neurotransmitter Agents / physiology
Phosphorylation / drug effects
Protein Kinase C / drug effects,  metabolism
Protein Kinases / drug effects,  metabolism
Signal Transduction / drug effects
Synaptic Transmission / drug effects
Grant Support
ID/Acronym/Agency:
R01 MH56247-01/MH/NIMH NIH HHS
Chemical
Reg. No./Substance:
0/Cytoskeletal Proteins; 0/Neuropeptides; 0/Neurotransmitter Agents; 7439-93-2/Lithium; EC 2.7.-/Protein Kinases; EC 2.7.11.13/Protein Kinase C; EC 3.6.1.-/GTP-Binding Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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