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insight in bipolar patients

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https://www.readbyqxmd.com/read/27920534/perceptions-and-impact-of-bipolar-disorder-in-japan-results-of-an-internet-survey
#1
Koichiro Watanabe, Eiji Harada, Takeshi Inoue, Yuka Tanji, Toshiaki Kikuchi
Bipolar disorder is a recurrent and episodic illness. This survey study assessed experiences and identified clinical insights of individuals with bipolar disorder. An Internet-based monitor system database was screened for patients with bipolar disorder in Japan (February and March 2013). Of 1,050 patients, 457 completed surveys, and results were analyzed with descriptive statistics. Approximately one-fourth of respondents were diagnosed with bipolar disorder on their first visit to medical institutions, although the most common initial diagnosis was depression/depressive state (65%)...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27902448/rasgrp1-promotes-amphetamine-induced-motor-behavior-through-a-rhes-interaction-network-rhesactome-in-the-striatum
#2
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/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
#3
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/27872267/endophenotypes-epigenetics-polygenicity-and-more-irv-gottesman-s-dynamic-legacy
#4
David L Braff, Carol A Tamminga
First, we describe the hallmark contributions of Irv Gottesman's pioneering scholarship for schizophrenia research including concepts of polygenicity, gene × environment interactions, epigenetics and the endophenotype concept. Gottesman and colleagues' twin studies showed that genes, not social factors, mediate schizophrenia risk. He then showed that schizophrenia is highly polygenic. Next, he introduced the concept of epigenetics into schizophrenia research. Gottesman then introduced the quantitative endophenotype concept...
November 21, 2016: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/27845777/newer-insights-into-the-role-of-mirna-a-tiny-genetic-tool-in-psychiatric-disorders-focus-on-post-traumatic-stress-disorder
#5
REVIEW
V V Giridharan, R A Thandavarayan, G R Fries, C Walss-Bass, T Barichello, N J Justice, M K Reddy, J Quevedo
Post-traumatic stress disorder (PTSD) is a mental disorder occurring in about 2-9% of individuals after their exposure to life-threatening events, such as severe accidents, sexual abuse, combat or a natural catastrophe. Because PTSD patients are exposed to trauma, it is likely that epigenetic modifications have an important role in disease development and prognosis. For the past two decades, abnormal expression of the epigenetic regulators microRNAs (miRs) and miR-mediated gene regulation have been given importance in a variety of human diseases, such as cancer, heart disease and viral infection...
November 15, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27834648/epidural-stimulation-of-rat-spinal-cord-at-lumbosacral-segment-using-a-surface-electrode-a-computer-simulation-study
#6
Qi Xu, Li Kong, Hui Zhou, Jiping He
Clinical research indicates that the epidural spinal cord stimulation (ESCS) at lumbosacral segment has shown potential for promoting locomotor recovery in patients with incomplete spinal cord injury. However, the underlying neural mechanism needs to be determined by animal experiments. In order to refine experimental protocols, we used a finite element simulation to investigate the activation of nerve fibers in a rat spinal cord model. Our model is composed of a volume conductor model from L1 to S2 spinal segments and the McIntyre-Richard-Grill axon model, which is used to investigate the threshold of selected spinal fibers with different diameters at varied locations and predict the neural responses of any target fibers with bipolar electrode configuration...
November 4, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/27792813/asymmetrical-functional-deficits-of-on-and-off-retinal-processing-in-the-mdx3cv-mouse-model-of-duchenne-muscular-dystrophy
#7
Tina I Tsai, Mirella Telles Salgueiro Barboni, Balázs Vince Nagy, Michel J Roux, Alvaro Rendon, Dora Fix Ventura, Jan Kremers
Purpose: The dystrophin mouse mutant mdx3Cv exhibits scotopic electroretinograpic (ERG) abnormalities, which resemble clinical changes observed in Duchenne muscular dystrophy (DMD) patients. In the present study, ERGs obtained from mdx3Cv and their wild-type littermates under scotopic, mesopic, and photopic conditions were analyzed to provide further insight on the affected retinal pathways, and to compare them with human data. Methods: Electroretinograms of mdx3Cv (n = 9) and age-matched C57BL/6J mice (n = 10) included the scotopic full-field flash (for outer retinal deficits in rod pathway), scotopic threshold response (for inner retinal integrity), photopic flash, sinusoidal flicker (for outer retinal deficits in cone pathway), mesopic rapid-on/-off sawtooth flicker, and photopic long-duration flash measurements (for separate ON-/OFF-responses under different conditions)...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27771971/temporal-diagnostic-and-tissue-specific-regulation-of-nrg3-isoform-expression-in-human-brain-development-and-affective-disorders
#8
Clare Paterson, Yanhong Wang, Thomas M Hyde, Daniel R Weinberger, Joel E Kleinman, Amanda J Law
OBJECTIVE: Genes implicated in schizophrenia are enriched in networks differentially regulated during human CNS development. Neuregulin 3 (NRG3), a brain-enriched neurotrophin, undergoes alternative splicing and is implicated in several neurological disorders with developmental origins. Isoform-specific increases in NRG3 are observed in schizophrenia and associated with rs10748842, a NRG3 risk polymorphism, suggesting NRG3 transcriptional dysregulation as a molecular mechanism of risk...
October 24, 2016: American Journal of Psychiatry
https://www.readbyqxmd.com/read/27766706/age-at-onset-subsets-of-bipolar-i-disorders-a-critical-insight-into-admixture-analyses
#9
Claire Montlahuc, Emmanuel Curis, Sarah Flora Jonas, Frank Bellivier, Sylvie Chevret
Gaussian mixture analysis is frequently used to model the age-at-onset (AAO) in bipolar I disorder and identify homogeneous subsets of patients. This study aimed to examine whether, using admixture analysis of AAO, cross-sectional designs (which cause right truncation), unreliable diagnosis for individuals younger than 10 years old (which causes left truncation) and the selection criterion used for admixture analysis impact the number of identified subsets. A simulation study was performed. Different criteria - the likelihood ratio test (LRT), the Akaike information criterion (AIC), and the Bayesian information criterion (BIC) - were compared using no, left and/or right truncation simulated data...
October 21, 2016: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/27725692/single-neuron-transcriptomics-identify-srsf-sr-protein-b52-as-a-regulator-of-axon-growth-and-choline-acetyltransferase-splicing
#10
Boyin Liu, Torsten Bossing
We removed single identified neurons from living Drosophila embryos to gain insight into the transcriptional control of developing neuronal networks. The microarray analysis of the transcriptome of two sibling neurons revealed seven differentially expressed transcripts between both neurons (threshold: log21.4). One transcript encodes the RNA splicing factor B52. Loss of B52 increases growth of axon branches. B52 function is also required for Choline acetyltransferase (ChAT ) splicing. At the end of embryogenesis, loss of B52 function impedes splicing of ChAT, reduces acetylcholine synthesis, and extends the period of uncoordinated muscle twitches during larval hatching...
October 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27633500/lithium-pharmacogenetics-where-do-we-stand
#11
REVIEW
Claudia Pisanu, Carla Melis, Alessio Squassina
Preclinical Research Bipolar disorder (BPD) is a chronic and disabling psychiatric disorder with a prevalence of 0.8-1.2% in the general population. Although lithium is considered the first-line treatment, a large percentage of patients do not respond sufficiently. Moreover, lithium can induce severe side effects and has poor tolerance and a narrow therapeutic index. The genetics of lithium response has been largely investigated, but findings have so far failed to identify reliable biomarkers to predict clinical response...
November 2016: Drug Development Research
https://www.readbyqxmd.com/read/27606323/perturbational-profiling-of-metabolites-in-patient-fibroblasts-implicates-%C3%AE-aminoadipate-as-a-potential-biomarker-for-bipolar-disorder
#12
Joanne H Huang, Shaunna S Berkovitch, Jonathan Iaconelli, Bradley Watmuff, Hyoungjun Park, Shrikanta Chattopadhyay, Donna McPhie, Dost Öngür, Bruce M Cohen, Clary B Clish, Rakesh Karmacharya
Many studies suggest the presence of aberrations in cellular metabolism in bipolar disorder. We studied the metabolome in bipolar disorder to gain insight into cellular pathways that may be dysregulated in bipolar disorder and to discover evidence of novel biomarkers. We measured polar and nonpolar metabolites in fibroblasts from subjects with bipolar I disorder and matched healthy control subjects, under normal conditions and with two physiologic perturbations: low-glucose media and exposure to the stress-mediating hormone dexamethasone...
July 2016: Molecular Neuropsychiatry
https://www.readbyqxmd.com/read/27585769/esthetic-evaluation-of-implants-vs-canine-substitution-in-patients-with-congenitally-missing-maxillary-lateral-incisors-are-there-any-new-insights
#13
Ute Schneider, Lorenz Moser, Marzia Fornasetti, Michele Piattella, Giuseppe Siciliani
INTRODUCTION: The aims of the study were to determine how a panel of orthodontists, dentists, and laypersons rated the esthetic appeal of dentitions after orthodontic space closure by canine substitution compared with space opening and replacement of missing maxillary lateral incisors by implant-borne crowns and to compare the outcome with the results of a study in the United States in 2005. METHODS: A series of 9 posttreatment intraoral frontal photographs was presented to 87 orthodontists, 100 general dentists, and 100 laypersons...
September 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27569014/correlation-between-insight-and-capacity-to-consent-to-research-in-subjects-with-bipolar-disorder-type-i-and-schizophrenia
#14
Carlos López-Jaramillo, Chantal Aristizábal Tobler, Constanza Ovalle Gómez, Jaime Escobar Triana
INTRODUCTION: Schizophrenia and bipolar disorder type I (BD-I) can affect patient autonomy and capacity to consent to participate in research. Other variables associated with the autonomy of patients must be explored in order to improve the quality of the currently available tools. OBJECTIVE: To evaluate the relationship between insight and the capacity to consent to participate in research in patients with BD-I and schizophrenia. METHODS: A cross-sectional and longitudinal study was conducted with 120 subjects (40 subjects with schizophrenia, 40 with BD-I, and 40 healthy controls)...
July 2016: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/27515535/comparison-of-burden-among-family-members-of-patients-diagnosed-with-schizophrenia-and-bipolar-disorder-in-a-large-acute-psychiatric-hospital-in-china
#15
Yanling Zhou, Robert Rosenheck, Somaia Mohamed, Yufen Ou, Yuping Ning, Hongbo He
BACKGROUND: The difference of burden between caregivers of acute patients with schizophrenia and bipolar disorder has not been well studied in China, a culture where family responsibility has a very high value. Our aim is to compare family burden in these two categories diagnosis and to identify predictors of family burden in a large psychiatric hospital in China. METHODS: Two hundred forty-three schizophrenic patients and 200 bipolar patients were enrolled in a cross-sectional study...
2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27445939/unraveling-executive-functioning-in-dual-diagnosis
#16
REVIEW
Judith C L M Duijkers, Constance Th W M Vissers, Jos I M Egger
In mental health, the term dual-diagnosis is used for the co-occurrence of Substance Use Disorder (SUD) with another mental disorder. These co-occurring disorders can have a shared cause, and can cause/intensify each other's expression. Forming a threat to health and society, dual-diagnosis is associated with relapses in addiction-related behavior and a destructive lifestyle. This is due to a persistent failure to control impulses and the maintaining of inadequate self-regulatory behavior in daily life. Thus, several aspects of executive functioning like inhibitory, shifting and updating processes seem impaired in dual-diagnosis...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27445475/unmet-needs-of-bipolar-disorder-patients
#17
REVIEW
Miroslav Hajda, Jan Prasko, Klara Latalova, Radovan Hruby, Marie Ociskova, Michaela Holubova, Dana Kamaradova, Barbora Mainerova
BACKGROUND: Bipolar disorder (BD) is a serious mental illness with adverse impact on the lives of the patients and their caregivers. BD is associated with many limitations in personal and interpersonal functioning and restricts the patients' ability to use their potential capabilities fully. Bipolar patients long to live meaningful lives, but this goal is hard to achieve for those with poor insight. With progress and humanization of society, the issue of patients' needs became an important topic...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27424200/association-between-sirtuin-1-gene-rs10997870-polymorphism-and-suicide-behaviors-in-bipolar-disorder
#18
Alessandra Nivoli, Stefano Porcelli, Diego Albani, Gianluigi Forloni, Federica Fusco, Francesc Colom, Eduard Vieta, Alessandro Serretti
BACKGROUND/AIMS: Suicidal behavior (SB) in bipolar disorder (BD) is a complex multifactorial event resulting from an interaction of genetic, neurobiological and psychosocial factors. Recent studies identified new possible mechanisms, suggesting a role for sirtuins (SIRTs 1-7), a family of nicotinamide adenine dinucleotide-dependent enzymes with a multifaceted role in the central nervous system. The aims of the present study were: (1) to investigate the effects of the rs10997870 SIRT1 gene variant on SB in BD; (2) to explore the effects of the same gene variant on specific depressive symptoms at the severest episode...
July 16, 2016: Neuropsychobiology
https://www.readbyqxmd.com/read/27356764/resting-state-brain-network-disturbances-related-to-hypomania-and-depression-in-medication-free-bipolar-disorder
#19
Jeffrey M Spielberg, Erik B Beall, Leslie A Hulvershorn, Murat Altinay, Harish Karne, Amit Anand
Research on resting functional brain networks in bipolar disorder (BP) has been unable to differentiate between disturbances related to mania or depression, which is necessary to understand the mechanisms leading to each state. Past research has also been unable to elucidate the impact of BP-related network disturbances on the organizational properties of the brain (eg, communication efficiency). Thus, the present work sought to isolate network disturbances related to BP, fractionate these into components associated with manic and depressive symptoms, and characterize the impact of disturbances on network function...
December 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27335515/a-cross-sectional-comparative-study-of-insight-in-schizophrenia-and-bipolar-patients-in-remission
#20
Arul Saravanan Ramachandran, Rajkumar Ramanathan, Samir Kumar Praharaj, Haridas Kanradi, Podila Satya Venkata Narasimha Sharma
AIMS: To study insight correlates in schizophrenia and bipolar mood disorder in remission among out-patients attending the Psychiatry Department of a Tertiary Care Hospital. SETTINGS AND DESIGN: In a cross-sectional, naturalistic study, adult patients with schizophrenia and bipolar mood disorder in remission (n = 80; schizophrenia-40, mania-20, bipolar depression-20) were compared on insight measures and clinical correlates. MATERIALS AND METHODS: Scale to Assess the Unawareness of Mental Disorders (SUMD) was used as the main tool to assess current and past measures of insight...
May 2016: Indian Journal of Psychological Medicine
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