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Lithium bipolar

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https://www.readbyqxmd.com/read/27922641/ip3-accumulation-and-or-inositol-depletion-two-downstream-lithium-s-effects-that-may-mediate-its-behavioral-and-cellular-changes
#1
Y Sade, L Toker, N Z Kara, H Einat, S Rapoport, D Moechars, G T Berry, Y Bersudsky, G Agam
Lithium is the prototype mood stabilizer but its mechanism is still unresolved. Two hypotheses dominate-the consequences of lithium's inhibition of inositol monophosphatase at therapeutically relevant concentrations (the 'inositol depletion' hypothesis), and of glycogen-synthase kinase-3. To further elaborate the inositol depletion hypothesis that did not decisively determine whether inositol depletion per se, or phosphoinositols accumulation induces the beneficial effects, we utilized knockout mice of either of two inositol metabolism-related genes-IMPA1 or SMIT1, both mimic several lithium's behavioral and biochemical effects...
December 6, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27911003/current-psychotropic-medication-prescribing-patterns-in-late-life-bipolar-disorder
#2
Soham Rej, Nathan Herrmann, Kenneth Shulman, Hadas D Fischer, Kinwah Fung, Andrea Gruneir
OBJECTIVE: Many patients with bipolar disorder are reaching old age, but whether they are receiving evidence-based psychotropic treatment remains unclear. Our objective was to describe current psychotropic prescribing patterns in a large Canadian late-life bipolar sample. METHODS: Population-based cross-sectional study of 1443 bipolar disorder patients aged ≥ 66, discharged from a psychiatric hospitalization in Ontario, Canada from 1 April 2006 to 31 March 2012...
December 2, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27909597/lithium-intoxication-accompanied-by-hyponatremia
#3
Özlem Korkmaz Dilmen, İsmail Hacı, Alim Ekinci, Mois Bahar
Lithium is frequently used in the management of bipolar affective disorders. It has a narrow therapeutic index and can cause acute or chronic intoxication. Toxic symptoms may be present even when concentrations are within the recommended therapeutic range. We believe that lithium intoxication is a very important issue for a physician. In this report, we aimed to evaluate the pathophysiological view of two chronic lithium intoxication cases accompanied by hyponatremia.
August 2016: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/27902528/increased-brain-lactate-during-depressive-episodes-and-reversal-effects-by-lithium-monotherapy-in-drug-naive-bipolar-disorder-a-3-t-1h-mrs-study
#4
Rodrigo Machado-Vieira, Marcus V Zanetti, Maria C Otaduy, Rafael T De Sousa, Marcio G Soeiro-de-Souza, Alana C Costa, Andre F Carvalho, Claudia C Leite, Geraldo F Busatto, Carlos A Zarate, Wagner F Gattaz
OBJECTIVE: Mitochondrial dysfunction and energy metabolism impairment are key components in the pathophysiology of bipolar disorder (BD) and may involve a shift from aerobic to anaerobic metabolism. Measurement of brain lactate in vivo using proton magnetic resonance spectroscopy (H-MRS) represents an important tool to evaluate mitochondrial and metabolic dysfunction during mood episodes, as well as to monitor treatment response. To date, very few studies have quantified brain lactate in BD...
November 28, 2016: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/27900734/lithium-side-effects-and-toxicity-prevalence-and-management-strategies
#5
REVIEW
Michael Gitlin
Despite its virtually universal acceptance as the gold standard in treating bipolar disorder, prescription rates for lithium have been decreasing recently. Although this observation is multifactorial, one obvious potential contributor is the side effect and toxicity burden associated with lithium. Additionally, side effect concerns assuredly play some role in lithium nonadherence. This paper summarizes the knowledge base on side effects and toxicity and suggests optimal management of these problems. Thirst and excessive urination, nausea and diarrhea and tremor are rather common side effects that are typically no more than annoying even though they are rather prevalent...
December 2016: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/27882645/long-term-lithium-treatment-increases-intracellular-and-extracellular-brain-derived-neurotrophic-factor-bdnf-in-cortical-and-hippocampal-neurons-at-subtherapeutic-concentrations
#6
Vanessa J De-Paula, Wagner F Gattaz, Orestes V Forlenza
OBJECTIVES: The putative neuroprotective effects of lithium treatment rely on the fact that it modulates several homeostatic mechanisms involved in the neurotrophic response, autophagy, oxidative stress, inflammation, and mitochondrial function. Lithium is a well-established therapeutic option for the acute and long-term management of bipolar disorder and major depression. The aim of this study was to evaluate the effects of subtherapeutic and therapeutic concentrations of chronic lithium treatment on brain-derived neurotrophic factor (BDNF) synthesis and secretion...
November 24, 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27873290/aims-and-structure-of-the-german-research-consortium-bipolife-for-the-study-of-bipolar-disorder
#7
REVIEW
Philipp S Ritter, Felix Bermpohl, Oliver Gruber, Martin Hautzinger, Andreas Jansen, Georg Juckel, Tilo Kircher, Martin Lambert, Christoph Mulert, Andrea Pfennig, Andreas Reif, Otto Rienhoff, Thomas G Schulze, Emanuel Severus, Thomas Stamm, Michael Bauer
BACKGROUND: Bipolar disorder is a severe and heterogeneous mental disorder. Despite great advances in neuroscience over the past decades, the precise causative mechanisms at the transmitter, cellular or network level have so far not been unraveled. As a result, individual treatment decisions cannot be tailor-made and the uncertain prognosis is based on clinical characteristics alone. Although a subpopulation of patients have an excellent response to pharmacological monotherapy, other subpopulations have been less well served by the medical system and therefore require more focused attention...
December 2016: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/27871720/-guidelines-for-the-prescription-of-mood-stabilizers-for-adolescents-a-literature-review
#8
G Munch, N Godart
INTRODUCTION: Adolescence is a unique phase of the human developmental process. In adolescents, psychotropic medications may have different efficacy and tolerance profiles compared to those at other stages of the lifespan. Mood stabilizers are a complex pharmacological category including lithium, some anticonvulsants, and some second generation antipsychotics. Focusing on this class of pharmacological agents, we aim to answer the following questions: in which indications and according to which modalities should mood stabilizers be prescribed during adolescence? METHODS: Information was sought from the websites of the French Haute Autorité de santé (HAS) and Agence nationale de sécurité du médicament et des produits de santé (ANSM), the American Food and Drug Administration (FDA) and the British National Institute for Health and Clinical Excellence (NICE)...
November 18, 2016: L'Encéphale
https://www.readbyqxmd.com/read/27870504/chronic-licl-pretreatment-suppresses-thrombin-stimulated-intracellular-calcium-mobilization-through-trpc3-in-astroglioma-cells
#9
Takuji Uemura, Marty Green, Jerry J Warsh
OBJECTIVES: Transient receptor potential canonical type 3 (TRPC3) channels are activated in B lymphoblast cell lines from patients with bipolar disorder (BD), and its expression is reduced by chronic lithium treatment, implicating TRPC3 in the intracellular calcium (Ca(2+) ) dyshomeostasis of BD. Thrombin, via a protease-activated receptor, moderates Ca(2+) signaling and TRPC3 in astrocytes, and also cell proliferation. We examined whether lithium pretreatment attenuates thrombin-stimulated TRPC3 expression and function in astrocytes, and levels of the calcium-binding peptide, S100B, which is expressed mainly in these cells...
November 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27867936/effects-of-lithium-monotherapy-for-bipolar-disorder-on-gene-expression-in-peripheral-lymphocytes
#10
Amit Anand, Jeanette N McClintick, Jill Murrell, Harish Karne, John I Nurnberger, Howard J Edenberg
BACKGROUND: This study investigated the effect of lithium monotherapy on peripheral lymphocyte gene expression in bipolar disorder (BD). METHOD: Twenty-two medication-free bipolar subjects (11 hypomanic, 11 depressed) were started on lithium monotherapy. Closely matched healthy subjects (n = 15) were included as controls but did not receive treatment. Blood RNA samples were collected at baseline and after 2 and 8 weeks of treatment. RNA expression was measured using the Affymetrix GeneChip® Human Gene 1...
October 2016: Molecular Neuropsychiatry
https://www.readbyqxmd.com/read/27865605/population-pharmacokinetic-model-of-lithium-and-drug-compliance-assessment
#11
Isabel Pérez-Castelló, Víctor Mangas-Sanjuan, Ignacio González-García, Isabel Gonzalez-Alvarez, Marival Bermejo, Jose Luis Marco-Garbayo, Iñaki F Trocóniz
Population pharmacokinetic analysis of lithium during therapeutic drug monitoring and drug compliance assessment was performed in 54 patients and 246 plasma concentrations levels were included in this study. Patients received several treatment cycles (1-9) and one plasma concentration measurement for each patient was obtained always before starting next cycle (pre-dose) at steady state. Data were analysed using the population approach with NONMEM version 7.2. Lithium measurements were described using a two-compartment model (CL/F=0...
December 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27858347/serum-concentrations-of-mood-stabilizers-are-associated-with-memory-but-not-other-cognitive-domains-in-psychosis-spectrum-disorders-explorative-analyses-in-a-naturalistic-setting
#12
Nils Eiel Steen, Monica Aas, Carmen Simonsen, Ingrid Dieset, Martin Tesli, Mari Nerhus, Erlend Gardsjord, Ragni Mørch, Ingrid Agartz, Ingrid Melle, Anja Vaskinn, Olav Spigset, Ole A Andreassen
BACKGROUND: Mood stabilizers like lithium and anticonvulsants are used in bipolar and related psychotic disorders. There is a lack of knowledge of the relationship of these medications and cognition in the psychosis spectrum. We studied the association between serum concentration of mood stabilizers and cognitive performance in a well-characterized sample of bipolar and schizophrenia spectrum disorders. METHODS: Serum concentrations of valproate, lamotrigine, and lithium were analyzed for associations to performance on neuropsychological tests in six cognitive domains in individuals with bipolar disorder (n = 167) and in a combined sample of individuals with bipolar or schizophrenia spectrum disorders (n = 217)...
December 2016: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/27851608/1974-lithium-toxicity-in-a-23-year-old-bipolar-patient-overdose-or-side-effect
#13
Bikram Sharma, Norman Rizk
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27844061/lithium-responsive-seizure-like-hyperexcitability-is-caused-by-a-mutation-in-the-drosophila-voltage-gated-sodium-channel-gene-paralytic
#14
Garrett A Kaas, Junko Kasuya, Patrick Lansdon, Atsushi Ueda, Atulya Iyengar, Chun-Fang Wu, Toshihiro Kitamoto
Shudderer (Shu) is an X-linked dominant mutation in Drosophila melanogaster identified more than 40 years ago. A previous study showed that Shu caused spontaneous tremors and defects in reactive climbing behavior, and that these phenotypes were significantly suppressed when mutants were fed food containing lithium, a mood stabilizer used in the treatment of bipolar disorder (Williamson, 1982). This unique observation suggested that the Shu mutation affects genes involved in lithium-responsive neurobiological processes...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27842942/evaluation-of-50-khz-ultrasonic-vocalizations-in-animal-models-of-mania-ketamine-and-lisdexamfetamine-induced-hyperlocomotion-in-rats
#15
Etieli Wendler, Camila Pasquini de Souza, Debora Dalla Vecchia, Luiz Kae Sales Kanazawa, Palloma de Almeida Soares Hocayen, Markus Wöhr, Rainer K W Schwarting, Roberto Andreatini
Drug-induced hyperlocomotion in rodents is frequently used as a behavioral model for mania. However, the use of locomotor activity as the single parameter in these animal models of mania may pose some limitations for developing new pharmacological treatments. Thus, alternative behavioral markers are required. Fifty-kHz ultrasonic vocalizations (USV), which are thought to represent positive affect, are increased by the administration of the psychostimulant d-amphetamine, an effect that can be prevented by lithium treatment, the gold standard antimanic drug for treating bipolar disorder...
December 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27809629/prophylactic-use-of-olanzapine-and-quetiapine-from-pregnancy-to-the-postpartum-period-in-women-with-bipolar-disorder-a-case-series
#16
Faruk Uguz
The management of bipolar disorder in pregnant and postpartum women is one of the most difficult issues in clinical practice. Data on the efficacy of mood stabilizers, except lithium and antipsychotics, in the maintenance treatment of bipolar disorders during pregnancy and postpartum period are very limited. This report presents results of prophylaxis with olanzapine and quetiapine with regards to affective episodes in pregnancy to the postpartum period.
November 3, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27805299/step-wise-loss-of-antidepressant-effectiveness-with-repeated-antidepressant-trials-in-bipolar-ii-depression
#17
Jay D Amsterdam, Lorenzo Lorenzo-Luaces, Robert J DeRubeis
OBJECTIVE: This study examined the relationship between the number of prior antidepressant treatment trials and step-wise increase in pharmacodynamic tolerance (or progressive loss of effectiveness) in subjects with bipolar II depression. METHODS: Subjects ≥18 years old with bipolar II depression (n=129) were randomized to double-blind venlafaxine or lithium carbonate monotherapy for 12 weeks. Responders (n=59) received continuation monotherapy for six additional months...
November 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27802062/experimental-drugs-for-bipolar-psychosis
#18
Michele Fornaro, António E Nardi, Domenico De Berardis, Mauro G Carta
Psychotic features are common in bipolar disorder (BD), especially during acute mania. Even when early detected, their long-term management is difficult, essentially due to the unsatisfactory efficacy/tolerability profile of currently available treatments, thus soliciting the development of novel experimental drugs. Areas covered: Potential drug targets towards the development of experimental drugs in the treatment of bipolar psychosis are yet to be systematically characterized. Among other potential avenues, the kynurenic acid pathway may represent an intriguing opportunity...
November 1, 2016: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/27793772/tcf7l2-mediates-the-cellular-and-behavioral-response-to-chronic-lithium-treatment-in-animal-models
#19
Katarzyna Misztal, Nikola Brozko, Andrzej Nagalski, Lukasz M Szewczyk, Marta Krolak, Katarzyna Brzozowska, Jacek Kuznicki, Marta B Wisniewska
The mechanism of lithium's therapeutic action remains obscure, hindering the discovery of safer treatments for bipolar disorder. Lithium can act as an inhibitor of the kinase GSK3α/β, which in turn negatively regulates β-catenin, a co-activator of LEF1/TCF transcription factors. However, unclear is whether therapeutic levels of lithium activate β-catenin in the brain, and whether this activation could have a therapeutic significance. To address this issue we chronically treated mice with lithium. Although the level of non-phospho-β-catenin increased in all of the brain areas examined, β-catenin translocated into cellular nuclei only in the thalamus...
October 25, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27793771/lithium-increases-synaptic-glua2-in-hippocampal-neurons-by%C3%A2-elevating-the-%C3%AE-catenin-protein
#20
Mobeen Farooq, Seonil Kim, Sunny Patel, Latika Khatri, Takuya Hikima, Margaret E Rice, Edward B Ziff
Lithium (Li(+)) is a drug widely employed for treating bipolar disorder, however the mechanism of action is not known. Here we study the effects of Li(+) in cultured hippocampal neurons on a synaptic complex consisting of δ-catenin, a protein associated with cadherins whose mutation is linked to autism, and GRIP, an AMPA receptor (AMPAR) scaffolding protein, and the AMPAR subunit, GluA2. We show that Li(+) elevates the level of δ-catenin in cultured neurons. δ-catenin binds to the ABP and GRIP proteins, which are synaptic scaffolds for GluA2...
October 25, 2016: Neuropharmacology
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