scholarly journals Magnetic Seizure Therapy for Unipolar and Bipolar Depression: A Systematic Review

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Eric Cretaz ◽  
André R. Brunoni ◽  
Beny Lafer
Keyword(s):  
Bipolar Disorder ◽  
Side Effects ◽  
Mood Disorders ◽  
Bipolar Depression ◽  
Eligibility Criteria ◽  
Magnetic Seizure Therapy ◽  
Antidepressant Effects ◽  
Depressive Episodes ◽  
Cognitive Side Effects ◽  
Review Current

Objective. Magnetic seizure therapy (MST) is a novel, experimental therapeutic intervention, which combines therapeutic aspects of electroconvulsive therapy (ECT) and transcranial magnetic stimulation, in order to achieve the efficacy of the former with the safety of the latter. MST might prove to be a valuable tool in the treatment of mood disorders, such as major depressive disorder (MDD) and bipolar disorder. Our aim is to review current literature on MST.Methods. OVID and MEDLINE databases were used to systematically search for clinical studies on MST. The terms “magnetic seizure therapy,” “depression,” and “bipolar” were employed.Results. Out of 74 studies, 8 met eligibility criteria. There was considerable variability in the methods employed and samples sizes were small, limiting the generalization of the results. All studies focused on depressive episodes, but few included patients with bipolar disorder. The studies found reported significant antidepressant effects, with remission rates ranging from 30% to 40%. No significant cognitive side effects related to MST were found, with a better cognitive profile when compared to ECT. Conclusion. MST was effective in reducing depressive symptoms in mood disorders, with generally less side effects than ECT. No study focused on comparing MST to ECT on bipolar depression specifically.

Novel therapeutic targets for bipolar disorder

2017 ◽  
Author(s):  
Ioline D. Henter ◽  
Rodrigo Machado-Vieira
Keyword(s):  
Bipolar Disorder ◽  
Mood Disorders ◽  
Bipolar Depression ◽  
Nmda Antagonist ◽  
Excitatory Neurotransmitter ◽  
Residual Symptoms ◽  
Antidepressant Effects ◽  
The Central Nervous System ◽  
Depressive Episodes

The long-term course of bipolar disorder (BD) comprises recurrent depressive episodes and persistent residual symptoms for which standard therapeutic options are scarce and often ineffective. Glutamate is the major excitatory neurotransmitter in the central nervous system, and glutamate and its cognate receptors have consistently been implicated in the pathophysiology of mood disorders and in the development of novel therapeutics for these disorders. Since the rapid and robust antidepressant effects of the N-methyl-D-aspartate (NMDA) antagonist ketamine were first observed in 2000, other NMDA receptor antagonists have been studied in major depressive disorder (MDD) and BD. This chapter reviews the clinical evidence supporting the use of novel glutamate receptor modulators for treating BD—particularly bipolar depression. We also discuss other promising, non-glutamatergic targets for potential rapid antidepressant effects in mood disorders, including the cholinergic system, the melatonergic system, the glucocorticoid system, the arachidonic acid (AA) cascade, and oxidative stress and bioenergetics.

scholarly journals Repetitive transcranial magnetic stimulation in the treatment of bipolar disorder

2020 ◽  
Vol 10 ◽  
pp. 204512532097379
Author(s):  
Danielle Hett ◽  
Steven Marwaha
Keyword(s):  
Bipolar Disorder ◽  
Transcranial Magnetic Stimulation ◽  
Side Effects ◽  
Magnetic Stimulation ◽  
Sleep Problems ◽  
Bipolar Depression ◽  
Repetitive Transcranial Magnetic Stimulation ◽  
Controlled Trial ◽  
Total N ◽  
Depressive Episodes

Bipolar disorder (BD) is a debilitating mood disorder marked by manic, hypomanic and/or mixed or depressive episodes. It affects approximately 1–2% of the population and is linked to high rates of suicide, functional impairment and poorer quality of life. Presently, treatment options for BD are limited. There is a strong evidence base for pharmacological (e.g., lithium) and psychological (e.g., psychoeducation) treatments; however, both of these pose challenges for treatment outcomes (e.g., non-response, side-effects, limited access). Repetitive transcranial magnetic stimulation (rTMS), a non-invasive brain stimulation technique, is a recommended treatment for unipolar depression, but it is unclear whether rTMS is an effective, safe and well tolerated treatment in people with BD. This article reviews the extant literature on the use of rTMS to treat BD across different mood states. We found 34 studies in total ( N = 611 patients), with most assessing bipolar depression ( n = 26), versus bipolar mania ( n = 5), mixed state bipolar ( n = 2) or those not in a current affective episode ( n = 1). Across all studies, there appears to be a detectable signal of efficacy for rTMS treatment, as most studies report that rTMS treatment reduced bipolar symptoms. Importantly, within the randomised controlled trial (RCT) study designs, most reported that rTMS was not superior to sham in the treatment of bipolar depression. However, these RCTs are based on small samples ( NBD ⩽ 52). Reported side effects of rTMS in BD include headache, dizziness and sleep problems. Ten studies ( N = 14 patients) reported cases of affective switching; however, no clear pattern of potential risk factors for affective switching emerged. Future adequately powered, sham-controlled trials are needed to establish the ideal rTMS treatment parameters to help better determine the efficacy of rTMS for the treatment of BD.

scholarly journals Treatment of bipolar depression with supraphysiologic doses of levothyroxine: a randomized, placebo-controlled study of comorbid anxiety symptoms

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Maximilian Pilhatsch ◽  
Thomas J Stamm ◽  
Petra Stahl ◽  
Ute Lewitzka ◽  
Anne Berghöfer ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Rating Scale ◽  
Bipolar Depression ◽  
Phenotypic Expression ◽  
Anxiety Symptoms ◽  
Controlled Study ◽  
Double Blind ◽  
Comorbid Anxiety ◽  
Depressed Patients ◽  
Depressive Episodes

Abstract Background Symptoms of anxiety co-occur in a variety of disorders including in depressive episodes of bipolar disorder and in patients with thyrotoxicosis. Treatment of refractory bipolar disorder with supraphysiologic doses of levothyroxine (L-T4) has been shown to improve the phenotypic expression of the disorder and is associated with an increase of circulating thyroid hormones. However, it might be associated with somatic and mental adverse effects. Here we report the investigation of the influence of treatment with supraphysiologic doses of L-T4 on symptoms of anxiety in patients with refractory bipolar depression. Methods Post-hoc analysis from a 6-week, multi-center, randomized, double-blind, placebo-controlled study of the effects of supraphysiologic L-T4 treatment on anxiety symptoms in bipolar depression. Anxiety symptoms were measured weekly with the Hamilton anxiety/somatization factor (HASF) score of the Hamilton Depression Rating Scale (HAMD) and the State- and Trait Anxiety Inventory (STAI). Results Treatment of both groups was associated with a significant reduction in anxiety symptoms (p < 0.001) with no statistical difference between groups (LT-4: from 5.9 (SD = 2.0) at baseline to 3.7 (SD = 2.4) at study end; placebo: from 6.1 (SD = 2.4) at baseline to 4.4 (SD = 2.8) at study end; p = 0.717). Severity of anxiety at baseline did not show a statistically significant correlation to the antidepressive effect of treatment with supraphysiologic doses of L-T4 (p = 0.811). Gender did not show an influence on the reduction of anxiety symptoms (females: from 5.6 (SD = 1.7) at baseline to 3.5 (SD = 2.4) at study end; males: from 6.1 (SD = 2.3) at baseline to 4.0 (SD = 2.4) at study end; p = 0.877). Conclusions This study failed to detect a difference in change of anxiety between bipolar depressed patients treated with supraphysiologic doses of L-T4 or placebo. Comorbid anxiety symptoms should not be considered a limitation for the administration of supraphysiologic doses of L-T4 refractory bipolar depressed patients. Trial registration ClinicalTrials, ClinicalTrials.gov identifier: NCT01528839. Registered 2 June 2012—Retrospectively registered, https://clinicaltrials.gov/ct2/show/study/NCT01528839

scholarly journals Age at onset, course of illness and response to psychotherapy in bipolar disorder: results from the Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD)

2014 ◽  
Vol 44 (16) ◽  
pp. 3455-3467 ◽  
Author(s):  
A. Peters ◽  
L. G. Sylvia ◽  
P. V. da Silva Magalhães ◽  
D. J. Miklowitz ◽  
E. Frank ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Collaborative Care ◽  
Bipolar Depression ◽  
Age At Onset ◽  
Number Needed To Treat ◽  
Systematic Treatment ◽  
Illness Duration ◽  
Bipolar Patients ◽  
Depressive Episodes ◽  
Intensive Psychotherapy

Background.The course of bipolar disorder progressively worsens in some patients. Although responses to pharmacotherapy appear to diminish with greater chronicity, less is known about whether patients' prior courses of illness are related to responses to psychotherapy.Method.Embedded in the Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD) was a randomized controlled trial of psychotherapy for bipolar depression comparing the efficacy of intensive psychotherapy with collaborative care (a three-session psycho-educational intervention). We assessed whether the number of previous mood episodes, age of illness onset, and illness duration predicted or moderated the likelihood of recovery and time until recovery from a depressive episode in patients in the two treatments.Results.Independently of treatment condition, participants with one to nine prior depressive episodes were more likely to recover and had faster time to recovery than those with 20 or more prior depressive episodes. Participants with fewer than 20 prior manic episodes had faster time to recovery than those with 20 or more episodes. Longer illness duration predicted a longer time to recovery. Participants were more likely to recover in intensive psychotherapy than collaborative care if they had 10–20 prior episodes of depression [number needed to treat (NNT) = 2.0], but equally likely to respond to psychotherapy and collaborative care if they had one to nine (NNT = 32.0) or >20 (NNT = 9.0) depressive episodes.Conclusions.Number of previous mood episodes and illness duration are associated with the likelihood and speed of recovery among bipolar patients receiving psychosocial treatments for depression.

scholarly journals Corticosterone as a Potential Confounding Factor in Delineating Mechanisms Underlying Ketamine’s Rapid Antidepressant Actions

2020 ◽  
Vol 11 ◽  
Author(s):  
Lauren Wegman-Points ◽  
Brock Pope ◽  
Allison Zobel-Mask ◽  
Lori Winter ◽  
Eric Wauson ◽  
...  
Keyword(s):  
Side Effects ◽  
Molecular Mechanisms ◽  
Low Dose ◽  
Confounding Factor ◽  
Fold Increase ◽  
Antidepressant Effect ◽  
Isoflurane Anesthesia ◽  
Downstream Effector ◽  
Antidepressant Effects ◽  
Cognitive Side Effects

Recent research into the rapid antidepressant effect of subanesthetic doses of ketamine have identified a series of relevant protein cascades activated within hours of administration. Prior to, or concurrent with, these activation cascades, ketamine treatment generates dissociative and psychotomimetic side effects along with an increase in circulating glucocorticoids. In rats, we observed an over 3-fold increase in corticosterone levels in both serum and brain tissue, within an hour of administration of low dose ketamine (10 mg/kg), but not with (2R, 6R)-hydroxynorketamine (HNK) (10 mg/kg), a ketamine metabolite shown to produce antidepressant-like action in rodents without inducing immediate side-effects. Hippocampal tissue from ketamine, but not HNK, injected animals displayed a significant increase in the expression of sgk1, a downstream effector of glucocorticoid receptor signaling. To examine the role conscious sensation of ketamine’s side effects plays in the release of corticosterone, we assessed serum corticosterone levels after ketamine administration while under isoflurane anesthesia. Under anesthesia, ketamine failed to increase circulating corticosterone levels relative to saline controls. Concurrent with its antidepressant effects, ketamine generates a release of glucocorticoids potentially linked to disturbing cognitive side effects and the activation of distinct molecular pathways which should be considered when attempting to delineate the molecular mechanisms of its antidepressant function.

TMS in bipolar disorder

2012 ◽  
Author(s):  
Nimrod Grisaru ◽  
Bella Chudakov ◽  
Alex Kaptsan ◽  
Alona Shaldubina ◽  
Julia Applebaum ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Magnetic Stimulation ◽  
Bipolar Depression ◽  
Unipolar Depression ◽  
Future Directions ◽  
Induced Mood ◽  
Mood Effects ◽  
Clinical Potential ◽  
Depressive Episodes ◽  
Lateral Specificity

This article reviews the existing animal and human literature on the clinical potential of transcranial magnetic stimulation (TMS) in mania and bipolar depression, and discusses potential future directions for this work. Studies of TMS in depression and normal volunteers suggested lateral specificity of TMS-induced mood effects. Clinical trials to compare left versus right prefrontal TMS in mania have been developed. Studies to understand the effect of TMS in bipolar depression have been undertaken. The results show efficacy similar to that for unipolar depression. But this does not provide support for the concept of TMS as an anti-bipolar, or mood-stabilizing, treatment. The utility of TMS as prophylaxis for subsequent manic or depressive episodes has not been reported in bipolar disorder. More work is needed to clarify the risk of mood switch, and the potential of TMS as prophylaxis against future manic or depressive episodes.

scholarly journals Lurasidone: Ten Years Treating Adults with Bipolar Depression

2021 ◽  
Vol 7 (2) ◽  
pp. 64-74
Author(s):  
Margarida Albuquerque ◽  
João Facucho-Oliveira ◽  
Daniel Esteves-Sousa ◽  
Nuno Moura ◽  
Daniel Neto ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Bipolar Depression ◽  
Type I ◽  
Pharmaceutical Drugs ◽  
The European Union ◽  
First Line ◽  
The Usa ◽  
Bipolar Type ◽  
Depressive Episodes ◽  
The Eu

Lurasidone is an atypical antipsychotic approved in 2010 in Canada and in the USA for the treatment of adults with schizophrenia or bipolar type I disorder. In 2014 it was approved in the European Union for the treatment of patients with 13 years‑old or older, with schizophrenia. Lurasidone is a benzisothiazole derivative with a binding profile that makes it an antidepressant candidate with a low metabolic impact. In patients with bipolar disorder, depressive episodes tend to be present for the majority of the time and are difficult to treat, as shown in multiple surveys indicating that more than three quarters of patients with bipolar depression receive at least two pharmaceutical drugs and more than one third receive three or more. Some relevant international guidelines include different first‑line options in the treatment of bipolar depression, among which is lurasidone. Considering the difficulties in treating depressive episodes in bipolar disorder, the EU marketing authorization limiting the use of lurasidone in schizophrenia only and the expectable commercialization in Portugal by 2021, we aim to review the literature regarding the efficacy and advantages of lurasidone for depressive episodes of bipolar disorder and to discuss the usefulness of approving this medication as an alternative treatment approach.

Antidepressant Effects of Atypical Antipsychotics

CNS Spectrums ◽  
2003 ◽  
Vol 8 (S12) ◽  
pp. 6-8
Author(s):  
Roy H. Perlis
Keyword(s):  
Atypical Antipsychotics ◽  
Rating Scale ◽  
Bipolar Depression ◽  
Case Series ◽  
Depression Score ◽  
Antidepressant Effects ◽  
Open Treatment ◽  
Depressive Episodes ◽  
Hamilton Rating Scale

Studies have shown that there is some efficacy for a number of agents, most notably lithium, in treating bipolar depression. However, the studies also highlight the unfortunate reality that many patients fail to respond adequately to first-line therapies and that there is a need to identify additional options for patients and clinicians. The atypical antipsychotics clozapine, olanzapine, quetiapine, risperidone, ziprasidone, and aripiprazole, have been the focus of increased interest in the treatment of bipolar depression.The use of antipsychotics in the treatment of depressive episodes is not a particularly novel idea. In 1982, Robertson and Trimble reviewed 34 studies examining the use of typical antipsychotics to augment an antidepressant and noticed modest but generally consistent benefits. More widespread use of these agents in the management of depression has been limited, however, because of concerns about the long-term risk of tardive dyskinesia and the induction of extrapyramidal symptoms that often mimic depressive symptoms.Clozapine, the first of the atypicals, was applied initially in the treatment of schizophrenia and schizoaffective disorder, where antidepressant effects were noted during open treatment. Subsequent case series described some benefit in dysphoric manias in bipolar disorder as well.Much of the inditect evidence for antidepressant effects of the atypicals came from studies in major depressive disorder (MDD). For example, a series of eight patients with MDD who failed treatment with a selective serotonin reuptake inhibitor (SSRI) achieved marked and rapid response when risperidone was added to the SSRI. All patients remitted within 1 week; Hamilton Rating Scale for Depression score in these patients declined from a mean of 20.5 to a mean of 2.4 (Slide 11). A subsequent series of 30 patients yielded similar results.

scholarly journals Lithium in mood disorders: increasing evidence base, declining use?

2007 ◽  
Vol 191 (6) ◽  
pp. 474-476 ◽  
Author(s):  
Allan H. Young ◽  
Judith M Hammond
Keyword(s):  
Bipolar Disorder ◽  
Side Effects ◽  
Mood Disorders ◽  
Lithium Treatment ◽  
Evidence Base ◽  
Efficacious Treatment ◽  
Meta Analyses

SummaryUse of lithium for the treatment of bipolar disorder may be declining even as knowledge of the efficacy and side-effects of lithium has increased. Recent meta-analyses confirm the benefits of maintenance lithium treatment and show that it reduces suicide and suicidality. Psychiatrists should continue to utilise this efficacious treatment for bipolar disorder.

scholarly journals Comparison of depressive episodes in bipolar disorder and in major depressive disorder within bipolar disorder pedigrees

2011 ◽  
Vol 199 (4) ◽  
pp. 303-309 ◽  
Author(s):  
Philip B. Mitchell ◽  
Andrew Frankland ◽  
Dusan Hadzi-Pavlovic ◽  
Gloria Roberts ◽  
Justine Corry ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Clinical Features ◽  
Bipolar Depression ◽  
Bipolar Affective Disorder ◽  
Probabilistic Approach ◽  
Psychomotor Retardation ◽  
Major Depressive ◽  
Depressive Episodes

BackgroundAlthough genetic epidemiological studies have confirmed increased rates of major depressive disorder among the relatives of people with bipolar affective disorder, no report has compared the clinical characteristics of depression between these two groups.AimsTo compare clinical features of depressive episodes across participants with major depressive disorder and bipolar disorder from within bipolar disorder pedigrees, and assess the utility of a recently proposed probabilistic approach to distinguishing bipolar from unipolar depression. A secondary aim was to identify subgroups within the relatives with major depression potentially indicative of ‘genetic’ and ‘sporadic’ subgroups.MethodPatients with bipolar disorder types 1 and 2 (n = 246) and patients with major depressive disorder from bipolar pedigrees (n = 120) were assessed using the Diagnostic Interview for Genetic Studies. Logistic regression was used to identify distinguishing clinical features and assess the utility of the probabilistic approach. Hierarchical cluster analysis was used to identify subgroups within the major depressive disorder sample.ResultsBipolar depression was characterised by significantly higher rates of psychomotor retardation, difficulty thinking, early morning awakening, morning worsening and psychotic features. Depending on the threshold employed, the probabilistic approach yielded a positive predictive value ranging from 74% to 82%. Two clusters within the major depressive disorder sample were found, one of which demonstrated features characteristic of bipolar depression, suggesting a possible ‘genetic’ subgroup.ConclusionsA number of previously identified clinical differences between unipolar and bipolar depression were confirmed among participants from within bipolar disorder pedigrees. Preliminary validation of the probabilistic approach in differentiating between unipolar and bipolar depression is consistent with dimensional distinctions between the two disorders and offers clinical utility in identifying patients who may warrant further assessment for bipolarity. The major depressive disorder clusters potentially reflect genetic and sporadic subgroups which, if replicated independently, might enable an improved phenotypic definition of underlying bipolarity in genetic analyses.

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