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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/27918949/an-exploration-of-metacognitive-beliefs-and-thought-control-strategies-in-bipolar-disorder
#2
Tiril Østefjells, Ingrid Melle, Sofie R Aminoff, Tone Hellvin, Roger Hagen, Trine Vik Lagerberg, June Ullevoldsæter Lystad, Jan Ivar Røssberg
BACKGROUND: Metacognitive factors influence depression, but are largely unexplored in bipolar disorders. We examined i) differences in metacognitive beliefs and thought control strategies between individuals with bipolar disorder and controls, and ii) to what extent clinical characteristics were related to levels of metacognitive beliefs and thought control strategies in bipolar disorder. METHOD: Eighty patients with bipolar disorder were assessed for age at onset of affective disorder, number of affective episodes, symptoms of mania and depression, metacognitive beliefs (MCQ-30) and thought control strategies (TCQ)...
November 23, 2016: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/27914864/serum-dhea-s-concentration-correlates-with-clinical-symptoms-and-neurocognitive-function-in-patients-with-bipolar-ii-disorder-a-case-controlled-study
#3
Sheng-Yu Lee, Liang-Jen Wang, Cheng-Ho Chang, Chih-Ching Wu, Hsing-Ling Chen, Shih-Hsien Lin, Chin-Liang Chu, Ti Lu, Ru-Band Lu
OBJECTIVES: Dysregulation of the neuroendocrine system including dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEA-S), and pregnenolone may play a role in the pathophysiology of bipolar II disorder (BP-II). The aims of the current study are to determine (a) the differences in DHEA, DHEA-S and pregnenolone in patients with BP-II and controls; and (b) the correlation of levels of the above hormones, cognitive function, and clinical symptoms. METHODS: Patients diagnosed with BP-II and healthy controls were recruited from psychiatric department...
November 30, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27909597/lithium-intoxication-accompanied-by-hyponatremia
#4
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/27908173/pacemaker-and-icd-oversensing-induced-by-movements-near-the-mri-scanner-bore
#5
E Mattei, F Censi, G Calcagnini, R Falsaperla, E Genovese, A Napolitano, V Cannatà
PURPOSE: The effect of the movement near the MRI scanner bore for people with a pacemaker (PM) or an implantable cardioverter defibrillator (ICD) is experimentally evaluated and discussed. METHODS: The authors performed in vitro measurements on a saline-filled human-shaped phantom (male, 170 cm height), equipped first with an MR-conditional PM (bicameral configuration, DDD programming), then with an MR-conditional ICD (biventricular configuration, detection algorithms enable but shock delivery disable)...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27902976/centrosome-clustering-in-the-development-of-bovine-binucleate-trophoblast-giant-cells
#6
Karl Klisch, Elisabeth M Schraner, Alois Boos
Binucleate trophoblast giant cells (BNC) are the characteristic feature of the ruminant placenta. During their development, BNC pass through 2 acytokinetic mitoses and become binucleate with 2 tetraploid nuclei. In this study, we investigate the number and location of centrosomes in bovine BNC. Centrosomes typically consist of 2 centrioles surrounded by electron-dense pericentriolar material. Duplication of centrosomes is tightly linked to the cell cycle, which ensures that the number of centrosomes remains constant in proliferating diploid cells...
December 1, 2016: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/27902448/rasgrp1-promotes-amphetamine-induced-motor-behavior-through-a-rhes-interaction-network-rhesactome-in-the-striatum
#7
Neelam Shahani, Supriya Swarnkar, Vincenzo Giovinazzo, Jenny Morgenweck, Laura M Bohn, Catherina Scharager-Tapia, Bruce Pascal, Pablo Martinez-Acedo, Kshitij Khare, Srinivasa Subramaniam
The striatum of the brain coordinates motor function. Dopamine-related drugs may be therapeutic to patients with striatal neurodegeneration, such as Huntington's disease (HD) and Parkinson's disease (PD), but these drugs have unwanted side effects. In addition to stimulating the release of norepinephrine, amphetamines, which are used for narcolepsy and attention-deficit/hyperactivity disorder (ADHD), trigger dopamine release in the striatum. The guanosine triphosphatase Ras homolog enriched in the striatum (Rhes) inhibits dopaminergic signaling in the striatum, is implicated in HD and L-dopa-induced dyskinesia, and has a role in striatal motor control...
November 15, 2016: Science Signaling
https://www.readbyqxmd.com/read/27898432/the-impact-of-paliperidone-palmitate-long-acting-injection-on-hospital-admissions-in-a-mental-health-setting
#8
Nikola Nikolić, Natalie Page, Adil Akram, Maha Khan
We screened 216 patients in a retrospective observational investigator-initiated study, of whom 45.37% patients (n=98) were retained after the inclusion criteria were applied. These patients had been prescribed paliperidone palmitate long-acting injection (PPLAI) with diagnoses of schizophrenia, schizoaffective disorder and bipolar affective disorder. We investigated whether PPLAI has an effect on the frequency and length of admissions to mental health inpatient units, the number of contacts with Crisis Resolution Home Treatment Teams (CRHTT) and frequency of home visits by the CRHTT per patient, over 6 years, split using a 'mirror image' method...
November 24, 2016: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/27898206/doomed-for-disorder-high-incidence-of-mood-and-anxiety-disorders-in-offspring-of-depressed-and-anxious-patients-a-prospective-cohort-study
#9
Petra J Havinga, Lynn Boschloo, Annelene J P Bloemen, Maaike H Nauta, Sybolt O de Vries, Brenda W J H Penninx, Robert A Schoevers, Catharina A Hartman
OBJECTIVE: Early recognition of individuals at risk for depressive and anxiety disorders is key in influencing onset and course of these disorders. Parental history is a potent risk factor for the development of these disorders in offspring. However, knowledge about the magnitude of this risk is limited as large-scale longitudinal studies with a follow-up into adulthood are scarce. Those offspring at highest risk may possibly be identified by easy-to-determine parental psychiatric characteristics, family context, and offspring characteristics...
November 22, 2016: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/27894372/affective-lability-mediates-the-association-between-childhood-trauma-and-suicide-attempts-mixed-episodes-and-co-morbid-anxiety-disorders-in-bipolar-disorders
#10
M Aas, C Henry, F Bellivier, M Lajnef, S Gard, J-P Kahn, T V Lagerberg, S R Aminoff, T Bjella, M Leboyer, O A Andreassen, I Melle, B Etain
BACKGROUND: Many studies have shown associations between a history of childhood trauma and more severe or complex clinical features of bipolar disorders (BD), including suicide attempts and earlier illness onset. However, the psychopathological mechanisms underlying these associations are still unknown. Here, we investigated whether affective lability mediates the relationship between childhood trauma and the severe clinical features of BD. METHOD: A total of 342 participants with BD were recruited from France and Norway...
November 29, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27894237/new-insight-in-improving-therapeutic-efficacy-of-antipsychotic-agents-an-overview-of-improved-in-vitro-and-in-vivo-performance-efficacy-upgradation-and-future-prospects
#11
Zahid Hussain, Hnin Ei Thu, Ahmad Nazrun Shuid
Psychotic disorders are severe mental disorders that rigorously affect patient personality, critical thinking, and perceptional ability. High prevalence, global dissemination and limitations of conventional pharmacological approaches compel a significant burden to the patient, medical professionals and the healthcare system. To date, numerous orally administered therapies are available for the management of depressive disorders, schizophrenia, anxiety, bipolar disorders and autism spectrum problems. However, poor water solubility, erratic oral absorption, extensive first-pass metabolism, low oral bioavailability and short half-lives are major factors which limit the pharmaceutical significance and therapeutic feasibility of these agents...
November 25, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27892736/therapeutics-of-postpartum-depression
#12
Michael Thomson, Verinder Sharma
Postpartum depression is a prevalent disorder affecting many women of reproductive age. Despite increasing public awareness, it is frequently underdiagnosed and undertreated leading to significant maternal morbidity and adverse child outcomes. When identified, postpartum depression is usually treated as major depressive disorder. Many studies have identified the postpartum as a period of high risk for first presentations and relapses of bipolar disorder. Areas Covered: This article reviews the acute and prophylactic treatment of postpartum major depressive disorder, bipolar depression and major depressive disorder with mixed features...
November 28, 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27888397/synaptosome-associated-protein-25-snap25-gene-association-analysis-revealed-risk-variants-for-asd-in-iranian-population
#13
Mohammad Reza Safari, Mir Davood Omrani, Rezvan Noroozi, Arezou Sayad, Shaghayegh Sarrafzadeh, Alireza Komaki, Fateme Asadzadeh Manjili, Mehrdokht Mazdeh, Ali Ghaleiha, Mohammad Taheri
Autism spectrum disorder (ASD) is a common, complex neurological condition, affecting approximately 1% of people worldwide. Monogenic neurodevelopmental disorders which showed autistic behavior patterns have suggested synaptic dysfunction, as a key mechanism in the pathophysiology of ASD. Subsequently, genes involved in synaptic signaling have been investigated with a priority for candidate gene studies. A synaptosomal-associated protein 25 (SNAP25) gene plays a crucial role in the central nervous system, contributing to exocytosis by targeting and fusion of vesicles to the cell membrane...
November 26, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27887740/outcomes-of-renal-transplantation-in-patients-with-bipolar-affective-disorder-and-schizophrenia-a-national-retrospective-cohort-study
#14
Mary I Butler, Deirdre McCartan, Anne Cooney, Patrick O Kelly, Izhar Ahmed, Dilly Little, Siobhan MacHale, Peter Conlon
BACKGROUND: Patients with severe psychiatric disorders such as schizophrenia and bipolar affective disorder (BPAD) have in the past been excluded from organ transplantation programs based on their psychiatric illness. However, there is little data on the outcomes of renal transplantation in these patients and little evidence to support such exclusion. METHODS: We reviewed the database of the Irish National Renal Transplant Programme and identified all patients with a history of BPAD or schizophrenia who had received a transplant over a 28-year period...
September 20, 2016: Psychosomatics
https://www.readbyqxmd.com/read/27886578/kynurenic-acid-and-psychotic-symptoms-and-personality-traits-in-twins-with-psychiatric-morbidity
#15
Magdalena E Kegel, Viktoria Johansson, Lennart Wetterberg, Maria Bhat, Lilly Schwieler, Tyrone D Cannon, Ina Schuppe-Koistinen, Göran Engberg, Mikael Landén, Christina M Hultman, Sophie Erhardt
Increased cytokines and kynurenic acid (KYNA) levels in cerebrospinal fluid (CSF) have been reported in patients with schizophrenia and bipolar disorder. The aim of the present study was to investigate cytokines and kynurenines in the CSF of twin pairs discordant for schizophrenia or bipolar disorder and to study these CSF markers in relation to psychotic symptoms and personality traits. CSF levels of tryptophan (TRP), KYNA, quinolinic acid (QUIN), interleukin (IL)-6, IL-8 and tumor necrosis factor-alpha (TNF-α) were analyzed in 23 twins with schizophrenia or bipolar disorder, and in their not affected co-twins...
November 16, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27870943/longitudinal-monitoring-of-heartbeat-dynamics-predicts-mood-changes-in-bipolar-patients-a-pilot-study
#16
Claudio Gentili, Gaetano Valenza, Mimma Nardelli, Antonio Lanatà, Gilles Bertschy, Luisa Weiner, Mauro Mauri, Enzo Pasquale Scilingo, Pietro Pietrini
OBJECTIVES: Recent research indicates that Heart Rate Variability (HRV) is affected in Bipolar Disorders (BD) patients. To determine whether such alterations are a mere expression of the current mood state or rather contain longitudinal information on BD course, we examined the potential influence of states adjacent in time upon HRV features measured in a target mood state. METHODS: Longitudinal evaluation of HRV was obtained in eight BD patients by using a wearable monitoring system developed within the PSYCHE project...
November 12, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27870507/stress-and-reward-processing-in-bipolar-disorder-a-functional-magnetic-resonance-imaging-study
#17
Lisa H Berghorst, Poornima Kumar, Doug N Greve, Thilo Deckersbach, Dost Ongur, Sunny J Dutra, Diego A Pizzagalli
OBJECTIVES: A link between negative life stress and the onset of mood episodes in bipolar disorder (BD) has been established, but processes underlying such a link remain unclear. Growing evidence suggests that stress can negatively affect reward processing and related neurobiological substrates, indicating that a dysregulated reward system may provide a partial explanation. The aim of this study was to test the impact of stress on reward-related neural functioning in BD. METHODS: Thirteen euthymic or mildly depressed individuals with BD and 15 controls performed a Monetary Incentive Delay (MID) task while undergoing functional magnetic resonance imaging during no-stress and stress (negative psychosocial stressor involving poor performance feedback and threat of monetary deductions) conditions...
November 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27870505/distinguishing-medication-free-subjects-with-unipolar-disorder-from-subjects-with-bipolar-disorder-state-matters
#18
Maria M Rive, Ronny Redlich, Lianne Schmaal, André F Marquand, Udo Dannlowski, Dominik Grotegerd, Dick J Veltman, Aart H Schene, Henricus G Ruhé
OBJECTIVES: Recent studies have indicated that pattern recognition techniques of functional magnetic resonance imaging (fMRI) data for individual classification may be valuable for distinguishing between major depressive disorder (MDD) and bipolar disorder (BD). Importantly, medication may have affected previous classification results as subjects with MDD and BD use different classes of medication. Furthermore, almost all studies have investigated only depressed subjects. Therefore, we focused on medication-free subjects...
November 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27869904/-neural-basis-of-social-cognition-in-bipolar-disorder
#19
Filippo Turchi, Giovanni Amodeo, Ettore Favaretto, Stefania Righini, Eugenia Mellina, Carmelo La Mela, Andrea Fagiolini
AIM: This article review studies social and interpersonal functioning in patients with bipolar disorder (BD), and reports on the neurobiological underpinnings of the dysfunctions in emotion recognition, i.e. one of the main domains of social cognition. METHODS: A bibliographical research of controlled studies from 1967 to 2015 was completed in PubMed and PsycINFO using the keywords: "fMRI", "emotion comprehension", "emotion perception", "affect comprehension", "affect perception", "facial expression", "prosody", "theory of mind", "mentalizing", "attributional style", "social perception", "empathy" and "bipolar disorder" or "unipolar depression"...
September 2016: Rivista di Psichiatria
https://www.readbyqxmd.com/read/27868424/increased-cooperative-behavior-across-remitted-bipolar-i-disorder-and-major-depression-insights-utilizing-a-behavioral-economic-trust-game
#20
Desmond C Ong, Jamil Zaki, June Gruber
Mood disorders impact social functioning, but might contribute to experiences-like affective distress-that might result in increased cooperative behavior under certain circumstances. We recruited participants with a history of bipolar I disorder (n = 28), major depressive disorder (n = 30), and healthy controls (n = 27)-to play a well-validated behavioral economic Trust Game, a task that provides a well-controlled experimental scenario, to measure cooperative behavior for the first time across both groups. Both remitted mood-disordered groups cooperated significantly more than the control group, but did not differ from one another...
November 17, 2016: Journal of Abnormal Psychology
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