Protein Kinase C Inhibition in the Treatment of Mania
Archives of General PsychiatryPublished 1 March 2008Open access
Ayşegül Yıldız, Sebnem Guleryuz, Donna P. Ankerst, Döst Öngür, Perry F. Renshaw
Citations210
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
TL;DR
Tamoxifen demonstrated antimanic properties and was remarkably well tolerated, and the findings encourage further clarification of the role of PKC in the pathophysiologic mechanism of bipolar I disorder and development of novel anti-PKC agents as potentialantimanic or mood-stabilizing agents.
Abstract
clinicaltrials.gov Identifier: NCT00411203 and isrctn.org Identifier: ISRCTN97160532.
Keywords
Medicine
Schizophrenia BulletinThe Positive and Negative Syndrome Scale (PANSS) for Schizophrenia
21,398 Citations1987Stanley R. Kay, Abraham Fiszbein +1 more
Review of five studies involving the PANSS provided evidence of its criterion-related validity with antecedent, genealogical, and concurrent measures, its predictive validity, its drug sensitivity, and its utility for both typological and dimensional assessment.
The British Journal of PsychiatryA New Depression Scale Designed to be Sensitive to Change
13,927 Citations1979Stuart Montgomery, Marie Åsberg
The construction of a depression rating scale designed to be particularly sensitive to treatment effects is described, and its capacity to differentiate between responders and non-responders to antidepressant treatment was better than the HRS, indicating greater sensitivity to change.
BiometricsRandom-Effects Models for Longitudinal Data
8,915 Citations1982Nan M. Laird, James H. Ware
A unified approach to fitting these models, based on a combination of empirical Bayes and maximum likelihood estimation of model parameters and using the EM algorithm, is discussed.
The British Journal of PsychiatryA Rating Scale for Mania: Reliability, Validity and Sensitivity
8,738 Citations1978Robert C. Young, John T. Biggs +2 more
The MRS score correlated highly with an independent global rating, and with scores of two other mania rating scales administered concurrently, and also correlated with the number of days of subsequent stay in hospital.
British Journal of Social and Clinical PsychologyDevelopment of a Rating Scale for Primary Depressive Illness
8,470 Citations1967Max Hamilton
This is an account of further work on a rating scale for depressive states, including a detailed discussion on the general problems of comparing successive samples from a ‘population’, the meaning of factor scores, and the other results obtained.
Proceedings of the National Academy of SciencesA molecular mechanism for the effect of lithium on development.
2,294 Citations1996Peter S. Klein, Douglas A. Melton
It is shown that complete inhibition of IMPase has no effect on the morphogenesis of Xenopus embryos and a different hypothesis to explain the broad action of lithium is presented, which suggests that lithium acts through inhibition of glycogen synthase kinase-3 beta (GSK-3beta), which regulates cell fate determination in diverse organisms including Dictyostelium, Drosophila, and Xenopus.
Journal of the American Statistical AssociationModeling the Drop-Out Mechanism in Repeated-Measures Studies
1,412 Citations1995Roderick J. A. Little
Methods that simultaneously model the data and the drop-out process within a unified model-based framework are discussed, and possible extensions outlined.
Psychiatry ResearchModification of the Clinical Global Impressions (CGI) scale for use in bipolar illness (BP): the CGI-BP
966 Citations1997Melissa K. Spearing, Robert M. Post +3 more
The modified CGI-BP is anticipated to be more useful than the original CGI in studies of bipolar disorder and interrater reliability of the scale was demonstrated in preliminary analyses.
The LancetLithium-induced increase in human brain grey matter
644 Citations2000Gregory J. Moore, Joseph M. Bebchuk +3 more
Three-dimensional magnetic resonance imaging and brain segmentation were used to study pharmacologically-induced increases in grey matter volume with chronic lithium use in patients with bipolar mood disorder.
American Journal of PsychiatryOlanzapine Versus Placebo in the Treatment of Acute Mania
570 Citations1999Mauricio Tohen, T.M. Sanger +13 more
The olanzapine group experienced significantly greater mean mean scores than the placebo group in the treatment of acute mania, and the primary efficacy measure was defined as a change from baseline to endpoint in total score on the Young Mania Rating Scale.
Archives of General PsychiatryEfficacy of Olanzapine in Acute Bipolar Mania<subtitle>A Double-blind, Placebo-Controlled Study</subtitle>
543 Citations2000Mauricio Tohen
Olanzapine demonstrated greater efficacy than placebo in the treatment of acute bipolar mania and was generally well tolerated.
Journal of the American Academy of Child & Adolescent PsychiatryDouble-Blind and Placebo-Controlled Study of Lithium for Adolescent Bipolar Disorders With Secondary Substance Dependency
530 Citations1998Barbara Geller, Thomas B. Cooper +5 more
Lithium treatment of BP with secondary SDD in adolescents was an efficacious treatment for both disorders and warrant replication with a long-term maintenance phase.
Journal of NeurochemistryThe Mood‐Stabilizing Agents Lithium and Valproate RobustlIncrease the Levels of the Neuroprotective Protein bcl‐2 in the CNS
496 Citations1999G Chen, Wei‐Zhang Zeng +5 more
These novel findings represent the first report of medication‐induced increases in CNS bcl‐2 levels and may have implications not only for mood disorders, but also for long‐term treatment of various neurodegenerative disorders.
Archives of General PsychiatryValproatereatment of Acute Mania
466 Citations1991Harrison G. Pope
It is concluded that valproate represents a useful new drug for the treatment of manic patients with acute manic episodes who had previously failed to respond to or to tolerate lithium carbonate.
Journal of NeurochemistryThe Mood‐Stabilizing Agent Valproate Inhibits the Activity of Glycogen Synthase Kinase‐3
439 Citations2000Guang Chen, Li‐Dong Huang +2 more
It is found that VPA concentration‐dependently inhibits both GSK‐3α and ‐3β, with significant effects observed at concentrations of VPA similar to those attained clinically, suggesting that lithium may increase AP‐1 DNA binding activity by inhibiting G SK‐3β.
Molecular PsychiatryAnti-bipolar therapy: mechanism of action of lithium
374 Citations1999Richard S. Jope
This review introduces the concepts that multiple actions of lithium are critical for its therapeutic effect, and that these complex effects stabilize neuronal activities, support neural plasticity, and provide neuroprotection.
ScienceProtein Kinase C Overactivity Impairs Prefrontal Cortical Regulation of Working Memory
315 Citations2004Shari G. Birnbaum, P Yuan +8 more
It is shown that high levels of PKC activity in prefrontal cortex, as seen for example during stress exposure, markedly impair behavioral and electrophysiological measures of working memory, suggesting that excessive PKC activation can disrupt prefrontal cortical regulation of behavior and thought.
Biological PsychiatryCellular Plasticity Cascades: Targets for the Development of Novel Therapeutics for Bipolar Disorder
272 Citations2006Carlos A. Zarate, Jaskaran Singh +1 more
Effective treatments for bipolar disorder will need to provide both trophic and neurochemical support, which serves to enhance and maintain normal synaptic connectivity, thereby allowing the chemical signal to reinstate the optimal functioning of critical circuits necessary for normal affective functioning.
American Journal of PsychiatryRapid Antimanic Effect of Risperidone Monotherapy: A 3-Week Multicenter, Double-Blind, Placebo-Controlled Trial
258 Citations2004Robert M. A. Hirschfeld, Paul E. Keck +5 more
Risperidone monotherapy was significantly more efficacious than placebo in the treatment of acute mania and demonstrated a rapid onset of action.
Biological PsychiatryProtein kinase C signaling in the brain: molecular transduction of mood stabilization in the treatment of manic-depressive illness
242 Citations1999Husseini K. Manji, Robert H. Lenox
Accumulating evidence has identified the family of protein kinase C isozymes as a shared target in the brain for the long-term action of both lithium and valproate and the down-stream impact of these mood stabilzizers on another kinase system, GSK-3β and on the AP-1 family of transcription factors.
Archives of General PsychiatrySecond-Generation Antipsychotic Agents in the Treatment of Acute Mania
241 Citations2007Harald Scherk, Frank Pajonk +1 more
Combining SGAs and MSs is the most efficacious treatment of acute mania, and adding antipsychotic agents to MS treatment was significantly more effective than treatment with MSs alone.
Molecular InterventionsMOLECULAR EFFECTS of lithium
203 Citations2004J. A. Quiroz
Recent insights into lithium's actions are reviewed, leading to the strategic development of improved therapeutics for the treatment of bipolar disorder and its intracellular downstream targets including adenylate cyclase, the phosphoinositol cascade, arachidonic acid metabolism, and effects on neurotrophic cascade.
Biological PsychiatryAltered platelet protein kinase C activity in bipolar affective disorder, manic episode
193 Citations1993Eitan Friedman, Hoau-Yan-Wang +3 more
The preliminary results suggest that alteration in platelet PKC is associated with the manic phase of bipolar illness and that lithium treatment reduces the sensitivity of platelets to PKC translocation induced by activation of serotonin-2 receptors.
The British Journal of PsychiatryRisperidone in the treatment of acute mania
188 Citations2005Sumant Khanna, Eduard Vieta +4 more
In patients with severe manic symptoms, risperidone produced significant improvements in YMRS scores as early as week 1 and substantial changes at end-point and treatment was well tolerated.
European NeuropsychopharmacologyAcute and continuation risperidone monotherapy in bipolar mania: a 3-week placebo-controlled trial followed by a 9-week double-blind trial of risperidone and haloperidol
178 Citations2004Smulevich Ab, Sumant Khanna +4 more
It is concluded that risperidone monotherapy was an effective and well-tolerated treatment for bipolar mania and that efficacy was maintained over the long term.
Journal of NeurochemistryChronic Sodium Valproate Selectively Decreases Protein Kinase C α and ε In Vitro
173 Citations1994Guang Chen, Husseini K. Manji +3 more
The data suggest that chronic VPA indirectly lowers the levels of specific isozymes of PKC in C6 cells, and the specific decreases in PKC α and ε may play a role in the antimanic effects of VPA.
Biological PsychiatryEnhanced protein kinase C activity and translocation in bipolar affective disorder brains
172 Citations1996Hoau-Yan Wang, Eitan Friedman
The results suggest that PKC-mediated phosphorylation is increased in brains of subjects with bipolar affective illness.
International Clinical PsychopharmacologyOlanzapine compared to lithium in mania: a double-blind randomized controlled trial
166 Citations1999Michael Berk, Liviu Ichim +1 more
Olanzapine appears to be at least as effective as lithium in the treatment of mania and did not differ from lithium in terms of treatment emergent extrapyramidal side-effects as measured by the Simpson-Angus Scale.
Journal of NeurochemistryLithium Decreases Membrane‐Associated Protein Kinase C in Hippocampus: Selectivity for the <i>α</i> Isozyme
163 Citations1993Husseini K. Manji, René Etcheberrigaray +2 more
The decreased hippocampal membrane‐associated PKC observed in the present study offers a possible explanation for lithium‐induced memory impairment and an attractive molecular mechanism for its efficacy in treating both poles of manic‐depressive illness.
Biological PsychiatryCellular Plasticity Cascades: Genes-To-Behavior Pathways in Animal Models of Bipolar Disorder
155 Citations2006Haim Einat, Husseini K. Manji
International Review of PsychiatryThe role of estrogen in mood disorders in women
140 Citations2003Jennifer L. Payne
The evidence for the role of hormonal fluctuations, specifically estrogen, in triggering depressive symptoms in a subgroup of women is summarized and the potential role of estrogen in triggering depression symptoms via its effects on the serotonergic system, brain-derived neurotrophic factor and Protein Kinase C is reviewed.
NeuropsychobiologyProtein Kinase C Inhibition by Tamoxifen Antagonizes Manic-Like Behavior in Rats: Implications for the Development of Novel Therapeutics for Bipolar Disorder
119 Citations2007Haim Einat, Peixiong Yuan +3 more
The results support the possibility that PKC signaling may play an important role in the pathophysiology and treatment of BPD and may have direct clinical implications as they offer a new avenue for attempts to develop more specific drugs for the disorder.
Brain ResearchChronic lithium administration alters a prominent PKC substrate in rat hippocampus
119 Citations1992Robert H. Lenox, David G. Watson +2 more
Using immunoblot analysis, a known myristoylated alanine-rich C kinase substrate (MARCKS) at 83 kDa is identified and in vivo levels of MARCKS in hippocampus were found to be significantly reduced after chronic lithium exposure.
PsychoneuroendocrinologyA pilot study of hormone modulation as a new treatment for mania in women with bipolar affective disorder
112 Citations2005Jayashri Kulkarni, Kathryn Ann Garland +6 more
The women who received tamoxifen exhibited significant improvement in symptoms of mania from baseline to final assessment compared with the placebo group, and the MPA group improved more than the placebo groups.
Molecular Brain ResearchValproate robustly enhances AP-1 mediated gene expression
102 Citations1999Guang Chen, Pei-Xong Yuan +3 more
The effects of VPA onAP-1 mediated gene expression are very similar to the effects observed with lithium, and suggest that the temporal regulation of AP-1mediated gene expression in critical neuronal circuits may play a role in the long-term therapeutic efficacy of these agents.
Journal of Psychiatric ResearchLithium and valproic acid treatments reduce PKC activation and receptor-G protein coupling in platelets of bipolar manic patients
95 Citations2004Chang-Gyu Hahn, Umapathy +4 more
Increased membrane-associated PKC, cytosol to membrane PKC translocation and receptor-G protein coupling in platelets of BD manic patients were alleviated by lithium or valproic acid treatments.
Journal of Psychiatric ResearchIncreased membrane-associated protein kinase C activity and translocation in blood platelets from bipolar affective disorder patients
93 Citations1999Hoau-Yan Wang, Philip Markowitz +3 more
It is demonstrated that a heightened PKC-mediated signal transduction is associated with acute mania and a decreased transduction in patients with unipolar depression or schizophrenia is suggested.
Bipolar DisordersLithium regulates PKC‐mediated intracellular cross‐talk and gene expression in the CNS <i>in vivo</i>
90 Citations2000Guang Chen, Monica I. Masana +1 more
The results suggest that the PKC signaling pathway and PKC-mediated gene expression may be important mediators of lithium's long-term therapeutic effects in a disorder as complex as BD.
PsychopharmacologyLithium inhibition of protein kinase C activation-induced serotonin release
89 Citations1989Hoau‐Yan Wang, Eitan Friedman
It is suggested that lithium treatment interferes with serotonin and norepinephrine release facilitation which results from the stimulation of PKC by phorbol esters.
The Journal of Clinical PsychiatryEstrogen Administration Does Not Reduce the Rate of Recurrence of Affective Psychosis After Childbirth
71 Citations2003Channi Kumar, Ronan J. McIvor +7 more
The results do not support the hypothesis that a fall in circulating concentrations of estrogens precipitates relapse in subjects at risk of postpartum affective psychosis and the use of prophylactic estrogen in such circumstances is highly questionable.
Journal of NeurochemistryChronic Lithium‐Induced Down‐Regulation of MARCKS in Immortalized Hippocampal Cells: Potentiation by Muscarinic Receptor Activation
71 Citations1996David G. Watson, Robert H. Lenox
Evidence is provided that this initial action of lithium may translate into a PKC‐dependent long‐term down‐regulation of MARCKS protein expression in the hippocampus, resulting in a relative inositol depletion.
PubMedKey treatment studies of lithium in manic-depressive illness: efficacy and side effects.
70 Citations1998C L Bowden
This review summarizes efficacy results of key studies in manic-depressive illness, the increasingly practical findings regarding predictors of response, and the implications of the increasingly better understood adverse effect profile of lithium.
American Journal of PsychiatryVerapamil for the Treatment of Acute Mania: A Double-Blind, Placebo-Controlled Trial
69 Citations1998P G Janicak, Rajiv P. Sharma +2 more
The investigators found no benefit of verapamil over placebo in treating acute mania, and mean absolute change scores on the Mania Rating Scale at endpoint did not differ between the verAPamil and placebo groups.
Journal of NeurochemistryLithium Activates the c‐Jun NH<sub>2</sub>‐Terminal Kinases In Vitro and in the CNS In Vivo
69 Citations1999Peixiong Yuan, Guang Chen +1 more
It is demonstrated that lithium activates the JNK signaling pathway in rat brain during chronic in vivo administration and in human cells of neuronal origin in vitro, indicating that the role of JNKs in regulating various aspects of neuronal function and their well‐documented role in regulating gene expression may play a major role in lithium's long‐term therapeutic effects.
Biological PsychiatryPlacebo effect in randomized, controlled studies of acute bipolar mania and depression
63 Citations2000Paul E. Keck, Jeffrey A. Welge +3 more
The placebo response rate in acute treatment trials of acute mania (and mixed states) and bipolar depression is examined to examine potential variables associated with placebo response and strategies to minimize placebo response.
NeuroscienceInvolvement of protein kinase Cγ isoform in morphine-induced reinforcing effects
57 Citations2001Masato Narita, Takeshi Aoki +3 more
It is suggested that activated PKCgamma in the limbic forebrain following the treatment with morphine may be critical for the development and/or maintenance of reinforcing effects induced by morphine in mice.
Biological PsychiatryIncreased association of brain protein kinase C with the receptor for activated C kinase-1 (RACK1) in bipolar affective disorder
53 Citations2001Hoau-Yan Wang, Eitan Friedman
The increased association of RACK1 with PKC isozymes may be responsible for the increases in membrane PKC and in its activation that were previously observed in frontal cortex of bipolar affective disorder brains.
The Journal of Clinical PsychiatrySymptomatic Remission in Patients With Bipolar Mania
44 Citations2005Srihari Gopal, David C. Steffens +2 more
A significant proportion of acutely manic patients receiving risperidone monotherapy achieved symptomatic remission within 3 weeks, suggesting that bipolar I disorder manic or mixed episode patients should be considered to have a high likelihood of remission.
Bipolar DisordersRecovery and functional outcomes following olanzapine treatment for bipolar I mania
43 Citations2005KN Roy Chengappa, John Hennen +6 more
Clinically meaningful symptomatic remission and recovery in relatively severely ill adult bipolar I manic patients were achieved slowly and sustained by only some patients within an average of 7 months of continuous treatment, and these clinically relevant outcomes were worse with relatively high initial dysphoria ratings.
NeuroreportIntra-A10 injection of H7 blocks the development of sensitization to cocaine
33 Citations1994Jeffery D. Steketee
Daily injections of H7 prevented the development of an enhanced motor-stimulant response, which occurred with daily cocaine injections, such that animals' behavioral response was similar to that of animals receiving their first cocaine injection.
American Journal of TherapeuticsLITHIUM WITHDRAWAL IN BIPOLAR DISORDER
27 Citations1996Ross J. Baldessarini, Trisha Suppes +1 more
The findings appear to have broad scientific, clinical, and ethical implications for clinical pharmacology in psychiatry as well as in general medicine.
American Journal of Geriatric PsychiatryHormone Replacement Therapy and Late-Life Mania
27 Citations1997Robert C. Young, Margaret Moline +1 more
A case of mania occurring in a woman in late life who had begun receiving hormone replacement therapy for osteoporosis is reported and related literature reports ofMania or rapid cycling after adjunctive estrogen administration for refractory depression are discussed.
Biological PsychiatryMethodological issues in developing new acute treatments for patients with bipolar illness
19 Citations2000A. John Rush, Robert M. Post +5 more
This article reexamines several assumptions that have guided the design of these efficacy trials but that also create obstacles for studies of bipolar disorder and suggests possible solutions to these impediments.
