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https://www.readbyqxmd.com/read/28647739/antipsychotic-induced-dopamine-supersensitivity-psychosis-pharmacology-criteria-and-therapy
#1
Guy Chouinard, Anne-Noël Samaha, Virginie-Anne Chouinard, Charles-Siegfried Peretti, Nobuhisa Kanahara, Masayuki Takase, Masaomi Iyo
The first-line treatment for psychotic disorders remains antipsychotic drugs with receptor antagonist properties at D2-like dopamine receptors. However, long-term administration of antipsychotics can upregulate D2 receptors and produce receptor supersensitivity manifested by behavioral supersensitivity to dopamine stimulation in animals, and movement disorders and supersensitivity psychosis (SP) in patients. Antipsychotic-induced SP was first described as the emergence of psychotic symptoms with tardive dyskinesia (TD) and a fall in prolactin levels following drug discontinuation...
June 24, 2017: Psychotherapy and Psychosomatics
https://www.readbyqxmd.com/read/28647564/effects-of-chronic-forced-swim-stress-on-behavioral-properties-in-rats-with-neonatal-repeated-mk-801-treatment
#2
Kouichi Kawabe
The two-hit hypothesis has been used to explain the onset mechanism of schizophrenia. It assumes that predisposition to schizophrenia is originally attributed to vulnerability in the brain which stems from genetic or early developmental factors, and that onset is triggered by exposure to later detrimental factors such as stress in adolescence or adulthood. Based on this hypothesis, the present study examined whether rats that had received neonatal repeated treatment with an N-methyl-d-aspartate (NMDA) receptor antagonist (MK-801), an animal model of schizophrenia, were vulnerable to chronic stress...
June 21, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28647493/associations-between-the-dbh-gene-plasma-dopamine-%C3%AE-hydroxylase-activity-and-cognitive-measures-in-han-chinese-patients-with-schizophrenia
#3
Zuoli Sun, Yun Ma, Wenbiao Li, Jing He, Jun Li, Xue Yang, Peixian Mao, Joseph F Cubells, Yilang Tang
The dopamine (DA) and norepinephrine (NE) systems modulate cognitive function. Dopamine β-hydroxylase (DβH) converts DA to NE, and its activity is under strong genetic control. This study examines the association of plasma DβH (pDβH) activity, DBH gene polymorphisms (-1021C>T, rs1611115 and 444G>A, rs1108580) and cognitive deficits in Han Chinese patients with schizophrenia. We assessed pDβH activity and cognitive function using the Verbal Fluency Test (VFT), Trail Making Test (TMT) A-B, Stroop color-word test and Wisconsin Card Sorting Test (WCST) in 200 patients with schizophrenia before and after 8weeks of antipsychotic treatment (96 patients completed assessments at baseline and post-treatment)...
June 21, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28647492/eszopiclone-for-persistent-negative-symptoms-in-schizophrenia-an-unintended-n-of-1-study
#4
Urvakhsh Meherwan Mehta, Vinutha Ravishankar, Jagadisha Thirthalli
Persistent negative and cognitive symptoms in patients with schizophrenia pose a significant challenge to clinicians. Being a heterogeneous cluster of symptoms with potentially distinct underlying pathogenesis, it is important to examine novel therapies based on emerging neurobiological evidence. Eszopiclone is known to enhance the deficient sleep spindles that are related to impairments in learning and memory in schizophrenia. In this report we highlight the potential utility of eszopiclone in treating persistent negative symptoms in a patient with chronic schizophrenia...
June 21, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28646504/views-of-mental-health-consumers-about-being-involved-in-nursing-handover-on-acute-inpatient-units
#5
Michael Olasoji, Virginia Plummer, Fiona Reed, Sini Jacob, Liam Shaw, Michelle Shanti, Wendy Cross
The involvement of consumers in handover with nurses has been identified as reducing miscommunication and a reduction in adverse events in generalist nursing settings. Mental health (MH) care is complex, and handover practices need to fit with the philosophy of recovery-focussed practice. Recovery-focussed practice recognizes the person at the centre of care as an expert in their own treatment and decision-making. The aim of the present study was to explore the views of consumers with a mental illness, without prior involvement in nursing handover, about their need to be involved in nursing handover on an acute mental health inpatient unit...
June 23, 2017: International Journal of Mental Health Nursing
https://www.readbyqxmd.com/read/28645779/schizophrenia-and-neurogenesis-a-stem-cell-approach
#6
REVIEW
Angela Iannitelli, Adele Quartini, Paola Tirassa, Giuseppe Bersani
Several recent research findings indicate that schizophrenia (SCZ) may begin with an abnormal neuro-genesis from embryonic Neural Stem Cells (NSCs) and that this process may be particularly vulnerable to a number of genetic and/or environmental disturbances of early brain development. Since it is now well known that neurogenesis is not confined to the womb, but is a protracted process continuing in postnatal life well into adolescence and beyond, and since in the majority of subjects diagnosed with SCZ the first psychotic break occurs in late adolescence or early adulthood, the aim of our paper is to summarize the main findings supporting a possible link between changes in developmental postnatal neurogenesis and SCZ, with a specific focus on the critical period of adolescence and associated environmental risk factors...
June 20, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28644753/a-comparison-of-the-neutrophil-lymphocyte-platelet-lymphocyte-and-monocyte-lymphocyte-ratios-in-schizophrenia-and-bipolar-disorder-patients-a-retrospective-file-review
#7
Selçuk Özdin, Gökhan Sarisoy, Ömer Böke
Neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR) and monocyte-lymphocyte ratio (MLR) have recently been used as indicators of inflammation. Higher MLR and PLR values have been determined in the euthymic and manic periods in patients with bipolar disorder compared to a control group. High NLR values were determined in the only study investigating this ratio in schizophrenia patients. The purpose of this study was to compare NLR, PLR and MLR values and complete blood count elements in patients receiving treatment and hospitalized due to schizophrenic psychotic episode and bipolar disorder manic episode...
June 23, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28644427/mental-diseases-and-criminal-offences-committed-by-persons-placed-at-the-forensic-department-of-the-penitentiary-in-zenica-federation-of-bosnia-and-herzegovina
#8
Edin Bjelošević, Adisa Krehmić, Halima Hadžikapetanović, Sanel Čoralić, Sonja Bjelošević
Aim To investigate an impact of various biological, psychological and social factors on perpetration of criminal offences by persons with mental disorders and to examine legal requirements for placement of persons with mental disorders, who committed criminal offences. Methods This retrospective, descriptive study based on the analysis of data collected from records of the Zenica Penitentiary, Forensic Department (age, qualifications, employment status, marital status, mental disorders, information related to earlier treatments, type of committed criminal offense, duration of the security measure of mandatory psychiatric treatment and custody) included 154 examinees...
August 1, 2017: Medicinski Glasnik
https://www.readbyqxmd.com/read/28643852/therapeutic-d2-3-receptor-occupancies-and-response-with-low-amisulpride-blood-concentrations-in-very-late-onset-schizophrenia-like-psychosis-vloslp
#9
Suzanne Reeves, Kate Eggleston, Elizabeth Cort, Emma McLachlan, Stuart Brownings, Akshay Nair, Suki Greaves, Alan Smith, Joel Dunn, Paul Marsden, Robert Kessler, David Taylor, Julie Bertrand, Robert Howard
OBJECTIVE: Antipsychotic drug sensitivity in very late-onset schizophrenia-like psychosis (VLOSLP) is well documented, but poorly understood. This study aimed to investigate blood drug concentration, D2/3 receptor occupancy and outcome in VLOSLP during open amisulpride prescribing, and compare this with Alzheimer's disease (AD). METHODS: Blood drug concentration, prolactin, symptoms and extrapyramidal side-effects (EPS) were serially assessed during dose titration...
June 23, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28643049/clozapine-in-reducing-aggression-and-violence-in-forensic-populations
#10
REVIEW
Kathleen Patchan, Gopal Vyas, Ann L Hackman, Marie Mackowick, Charles M Richardson, Raymond C Love, Ikwunga Wonodi, MacKenzie A Sayer, Matthew Glassman, Stephanie Feldman, Deanna L Kelly
Popular media often portray people with a mental illness as being aggressive, violent, and incarcerated as a result of their behavior. Despite exaggeration in the media, risks for some aggressive behaviors are in fact higher in individuals with schizophrenia. This is often the case with influence of comorbid substance use disorders. It is essential that mental health professionals are aware of treatments that may help with attenuating and treating behaviors that contribute to violence, aggression and incarceration...
June 22, 2017: Psychiatric Quarterly
https://www.readbyqxmd.com/read/28642831/treatment-of-hypochondriasis-in-two-schizophrenia-patients-using-clozapine
#11
Antonio Tundo, Luca Proietti, Rocco de Filippis
Hypochondriasis (HYPO), an obsessive-compulsive spectrum disorder, is frequent in patients with schizophrenia (SCH) (20%), especially among those treated with clozapine (36.7%). Treatment options for OCS/OCD in patients under clozapine (CLZ) include combining clozapine with amisulpride/aripiprazole or a mood stabilizer, augmenting clozapine with a serotoninergic reuptake inhibitor, adding cognitive behavioural therapy, and gradually reducing dosage. No treatments have been proposed for HYPO in patients using clozapine so we examine these options in 2 cases and report the results...
2017: Case Reports in Psychiatry
https://www.readbyqxmd.com/read/28641996/impact-of-paliperidone-palmitate-versus-oral-atypical-antipsychotics-on-health-care-resource-use-and-costs-in-veterans-with-schizophrenia-and-comorbid-substance-abuse
#12
Patrick Lefebvre, Erik Muser, Kruti Joshi, Maral DerSarkissian, Rachel H Bhak, Mei Sheng Duh, Brian Shiner, Yinong Young-Xu
PURPOSE: Almost half of all patients diagnosed with schizophrenia have a history of substance abuse (SA). However, data on treatment of schizophrenia with paliperidone palmitate (PP) among patients with comorbid SA are limited. The objective of this study was to compare all-cause and SA-related health care resource utilization and costs in veterans with schizophrenia and co-occurring SA who were treated with PP versus oral atypical antipsychotics (OAAs). METHODS: Veterans Health Administration electronic health record data were used to conduct a retrospective longitudinal study in veterans with schizophrenia who initiated PP or OAA between January 1, 2010 and June 30, 2016, had ≥12 months of enrollment before treatment initiation (baseline), were diagnosed with SA, and had ≥1 Global Assessment of Functioning score during baseline...
June 19, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28641817/-preventing-violence-in-schizophrenia-with-cognitive-remediation
#13
C Darmedru, C Demily, N Franck
OBJECTIVES: The association between schizophrenia and violence represents an important issue in psychiatry. Often highly publicized, violent acts raise the question of their detection, prevention, management and treatment. There is no single, direct and exclusive link between aggressiveness and the underlying psychiatric disorder. On the contrary, the processes underlying this violence are multiple and interlinked. In addition to static and dynamic risk factors, cognitive deficits play an important role in the genesis and maintenance of violent and aggressive behavior...
June 19, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28640988/does-half-life-matter-after-antipsychotic-discontinuation-a-relapse-comparison-in-schizophrenia-with-3-different-formulations-of-paliperidone
#14
Peter J Weiden, Edward Kim, Jason Bermak, Ibrahim Turkoz, Srihari Gopal, Joris Berwaerts
OBJECTIVE: To evaluate the effect of 1 oral and 2 distinct long-acting injectable (LAI) formulations of the same antipsychotic on times to relapse following medication discontinuation. METHODS: Data were drawn from 3 similarly designed, multicenter, double-blind, placebo-controlled, randomized-withdrawal studies of paliperidone in adults with a schizophrenia diagnosis (according to DSM-IV criteria for ≥ 1 year before screening): once-daily extended-release oral paliperidone (ORAL paliperidone), once-monthly paliperidone palmitate (PP1M), and once-every-3-months paliperidone palmitate (PP3M)...
June 20, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28640657/retinal-findings-on-oct-in-systemic-conditions
#15
Preeti Patil Chhablani, Vikas Ambiya, Akshay G Nair, Sailaja Bondalapati, Jay Chhablani
PURPOSE: Imaging technology has advanced by leaps and bounds in the recent past and has resulted in a much greater understanding of ocular diseases. The aim of this review article is to summarize optical coherence tomography (OCT) findings of various systemic conditions. METHOD: A systematic literature search of the Medline/PubMed database was performed. English articles up to April 2015 were included. Terms used for search included: Alzheimer's Disease; Multiple Sclerosis; Parkinson's Disease; Behçet's Disease; Schizophrenia; Migraine; Obstructive Sleep Apnea Syndrome; Neurofibromatosis; Sickle Cell Disease; Renal diseases; Lupus Retinopathy; Valsalva Retinopathy; Whiplash Retinopathy; Shaken-Baby Syndrome; Choroidal metastases; Intracranial Hypertension; Drug toxicity; Deferoxamine; Sildenafil; Tamoxifen; Hydroxychloroquine; Chloroquine; Ethambutol; Lead; Sickle Cell Disease; and Thalassemia along with OCT...
June 22, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28640171/changes-in-electroconvulsive-therapy-practice-in-the-last-12-years-in-hungary
#16
Márton Asztalos, Gabor S Ungvari, Gábor Gazdag
BACKGROUND: Electroconvulsive therapy (ECT) was rarely used in Hungary in 2002, and the majority of patients receiving ECT were diagnosed with schizophrenia. This study aimed to explore the use of ECT in Hungary in 2014. METHODS: Two semi-structured questionnaires were sent to all acute adult psychiatric units in Hungary. The first questionnaire contained items concerning ECT use, and the second explored the reasons for not using ECT. RESULTS: Fifty-eight acute psychiatric inpatient units were identified, and 54 replied...
June 15, 2017: Journal of ECT
https://www.readbyqxmd.com/read/28640170/effectiveness-of-electroconvulsive-therapy-and-associated-cognitive-change-in-schizophrenia-a-naturalistic-comparative-study-of-treating-schizophrenia-with-electroconvulsive-therapy
#17
Phern-Chern Tor, Jiangbo Ying, New Fei Ho, Mingyuan Wang, Donel Martin, Chai Pin Ang, Chunzhen Tan, Lee Shen Yap, Vincent John Magat Lu, Brett Simpson, Yee Ming Mok, Colleen Loo
OBJECTIVE: There is limited evidence regarding the relative treatment effectiveness and cognitive effects of different types of electroconvulsive therapy (ECT) in schizophrenia. In this study, we sought to determine the overall effectiveness and compare the symptomatic and cognitive outcomes of patients with schizophrenia who received different modalities of ECT treatment. METHODS: Patients received 1 of 4 of the following ECT modalities: bitemporal ECT with age-based dosing, right unilateral ECT with seizure threshold-based dosing, bitemporal ECT with seizure threshold-based dosing, and bifrontal ECT with seizure threshold-based dosing ECT...
June 15, 2017: Journal of ECT
https://www.readbyqxmd.com/read/28640119/relationships-between-dorsolateral-prefrontal-cortex-metabolic-change-and-cognitive-impairment-in-first-episode-neuroleptic-naive-schizophrenia-patients
#18
Man-Li Huang, Thong-Teck Khoh, Shao-Jia Lu, Fen Pan, Jin-Kai Chen, Jian-Bo Hu, Shao-Hua Hu, Wei-Juan Xu, Wei-Hua Zhou, Ning Wei, Hong-Li Qi, De-Sheng Shang, Yi Xu
The present study aimed to explore the possible associations between the dorsolateral prefrontal cortex (DLPFC) metabolites and the cognitive function in first-episode schizophrenia (FES).This study included 58 patients with FES (29 males and 29 females; mean age, 22.66 ± 7.64 years) recruited from the First Affiliated Hospital, College of Medicine, Zhejiang University, and 43 locally recruited healthy controls (16 males and 27 females; mean age, 23.07 ± 7.49 years). The single-voxel proton magnetic resonance spectroscopy was used to measure the levels of N-acetylaspartate (NAA); complex of glutamate, glutamine, and γ-aminobutyric acid (Glx); choline-containing compounds; and myo-inositol in the DLPFC...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28640071/worsening-of-myasthenia-gravis-after-administration-of-antipsychotics-for-treatment-of-schizophrenia-a-case-report-and-review-of-literature
#19
Shenglin She, Wenying Yi, Bei Zhang, Yingjun Zheng
No abstract text is available yet for this article.
June 20, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28639495/substance-use-in-adolescents-with-mental-illness-in-durban-south-africa
#20
Bhoodeo Taukoor, Saeeda Paruk, Enver Karim, Jonathan K Burns
Comorbid substance use in adolescents with mental illness is often an indicator of poor treatment outcome. This study aims to determine the prevalence of, and associated risk factors for, substance use in adolescents with mental illness attending a mental health service. Data was collected from hospital records of 162 adolescents, using a structured data sheet, over a two-year period. Substance use was more significant in older adolescents and those with severe mental illness. Sixty-two (38.3%) adolescents used substances...
May 2017: Journal of Child and Adolescent Mental Health
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