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https://www.readbyqxmd.com/read/28334978/therapeutic-window-of-dopamine-d2-3-receptor-occupancy-to-treat-psychosis-in-alzheimer-s-disease
#1
Suzanne Reeves, Emma McLachlan, Julie Bertrand, Fabrizia D Antonio, Stuart Brownings, Akshay Nair, Suki Greaves, Alan Smith, David Taylor, Joel Dunn, Paul Marsden, Robert Kessler, Robert Howard
Antipsychotic drugs, originally developed to treat schizophrenia, are used to treat psychosis, agitation and aggression in Alzheimer's disease. In the absence of dopamine D2/3 receptor occupancy data to inform antipsychotic prescribing for psychosis in Alzheimer's disease, the mechanisms underpinning antipsychotic efficacy and side effects are poorly understood. This study used a population approach to investigate the relationship between amisulpride blood concentration and central D2/3 occupancy in older people with Alzheimer's disease by combining: (i) pharmacokinetic data (280 venous samples) from a phase I single (50 mg) dose study in healthy older people (n = 20, 65-79 years); (ii) pharmacokinetic, 18F-fallypride D2/3 receptor imaging and clinical outcome data on patients with Alzheimer's disease who were prescribed amisulpride (25-75 mg daily) to treat psychosis as part of an open study (n = 28; 69-92 years; 41 blood samples, five pretreatment scans, 19 post-treatment scans); and (iii) 18F-fallypride imaging of an antipsychotic free Alzheimer's disease control group (n = 10, 78-92 years), to provide additional pretreatment data...
February 4, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28333778/cochlear-implant-in-severe-impaired-psychiatric-patients-a-case-series
#2
Ioana T Herisanu, Mark Praetorius, Margarete Mattern
OBJECTIVE: Psychotic disorders and intelligence deficiencies are no longer contraindications for cochlear implantation regarding the revised German guidelines from May 2012. This article aims to evaluate the outcome of patients with severe psychiatric comorbidities. Therefore the database of the Cochlear Implant Center of the University Hospital of Heidelberg was investigated. STUDY DESIGN: Retrospective case review. METHODS: We present three patients who received a cochlear implant (CI) despite a serious psychiatric disorder...
March 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28332861/treatment-of-nightmares-in-psychiatric-inpatients-with-imagery-rehearsal-therapy-an-open-trial-and-case-series
#3
Thomas E Ellis, Katrina A Rufino, Michael R Nadorff
OBJECTIVES: This study sought to assess the utility of Imagery Rehearsal Therapy (IRT) for nightmares in an inpatient psychiatric setting. Although IRT enjoys a substantial evidence base for efficacy in various populations, data with psychiatric inpatients are lacking. PARTICIPANTS: Participants were 20 adult psychiatric inpatients (11 male, 9 female; mean age=43.4), in an extended stay psychiatric inpatient facility. All participants were diagnosed with multiple, treatment resistant, comorbid conditions, including mood disorders, anxiety disorders, personality disorders, and substance-related disorders...
March 23, 2017: Behavioral Sleep Medicine
https://www.readbyqxmd.com/read/28332250/visual-hallucinations-in-patients-with-acute-stroke-a-prospective-exploratory-study
#4
E Morenas-Rodríguez, P Camps-Renom, A Pérez-Cordón, A Horta-Barba, M Simón-Talero, E Cortés-Vicente, D Guisado-Alonso, E Vilaplana, C García-Sánchez, A Gironell, C Roig, R Delgado-Mederos, J Martí-Fàbregas
BACKGROUND AND PURPOSE: The incidence, underlying physiopathology, features and association with lesion topography of visual hallucinations in acute stroke have scarcely been investigated. METHODS: Patients with a diagnosis of acute stroke (ischaemic or haemorrhagic) in any vascular territory, admitted within 24 h after the onset of symptoms, were consecutively included in the study. Patients with a previous history of psychosis or cognitive impairment were excluded...
March 22, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28332121/impairment-in-emotion-perception-from-body-movements-in-individuals-with-bipolar-i-and-bipolar-ii-disorder-is-associated-with-functional-capacity
#5
Anja Vaskinn, Trine Vik Lagerberg, Thomas D Bjella, Carmen Simonsen, Ole A Andreassen, Torill Ueland, Kjetil Sundet
BACKGROUND: Individuals with bipolar disorder present with moderate impairments in social cognition during the euthymic state. The impairment extends to theory of mind and to the perception of emotion in faces and voices, but it is unclear if emotion perception from body movements is affected. The main aim of this study was to examine if participants with bipolar disorder perform worse than healthy control participants on a task using point-light displays of human full figures moving in a manner indicative of a basic emotion (angry, happy, sad, fearful, neutral/no emotion)...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28331504/clozapine-treatment-and-cannabis-use-in-adolescents-with-psychotic-disorders-a-retrospective-cohort-chart-review
#6
Sephora M Tang, Aylar Ansarian, Darren B Courtney
OBJECTIVES: To examine the association between clozapine treatment and frequency of cannabis use in adolescents with co-occurring psychotic and cannabis use disorder in a retrospective cohort chart review. METHOD: We conducted a retrospective cohort chart review of patients diagnosed with a psychotic disorder and concurrent cannabis use disorder admitted to a tertiary care youth inpatient unit from 2010-2012. Longitudinal exposure and outcome data was coded month-by-month...
2017: Journal of the Canadian Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28331325/a-chinese-version-of-the-psychotic-symptom-rating-scales-psychometric-properties-in-recent-onset-and-chronic-psychosis
#7
Wai-Tong Chien, Isabella Yuet-Ming Lee, Li-Qun Wang
The purpose of this study was to test the reliability, validity, and factor structure of a Chinese version of the Psychotic Symptom Rating Scale (PSYRATS) in 198 and 202 adult patients with recent-onset and chronic psychosis, respectively. The PSYRATS has been translated into different language versions and has been validated for clinical and research use mainly in chronic psychotic patients but not in recent-onset psychosis patients or in Chinese populations. The psychometric analysis of the translated Chinese version included assessment of its content validity, semantic equivalence, interrater and test-retest reliability, reproducibility, sensitivity to changes in psychotic symptoms, internal consistency, concurrent validity (compared to a valid psychotic symptom scale), and factor structure...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28331324/update-on-the-treatment-of-parkinson-s-disease-psychosis-role-of-pimavanserin
#8
REVIEW
Brianna L Combs, Arthur G Cox
Parkinson's disease (PD) has a prevalence of nearly 1 million people in the USA, with increasing incidence in the elderly population. Generally, the age of presentation is between 55 and 65 years, with the likelihood of diagnosis increasing as patients reach the age of 80 years or above. Some of the common treatments for PD increase dopamine levels in the brain. Dopaminergic therapy helps to improve motor and non-motor symptoms, but it is not without risks. Dopaminergic therapy can cause confusion, delirium, and psychotic-like behavior...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28330544/-behavioural-disturbances-in-dement-patients
#9
Anette Lolk, Kjeld Andersen
Behavioural and psychological symptoms in dementia are common. The symptoms include anxiety, depression, and psychosis, thus mimicking delirium. A thorough somatic examination, including current medication, is therefore very important before initiating any treatment. If behavioural and psychological symptoms of dementia is established, first-line treatment is non-pharmacological addressing possible needs and psychosocial problems. Only if this treatment is insufficient, pharmacological treatment can be considered...
March 20, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28328793/first-episode-psychosis-possibly-due-to-roxithromycin-related-inhibition-of-metabolization-of-tetrahydrocannabinol
#10
Maximilian Gahr, Christoph Hiemke, Bernhard J Connemann, Carlos Schönfeldt-Lecuona
No abstract text is available yet for this article.
March 21, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28326948/rare-presentation-of-intrathecal-morphine-withdrawal-psychosis
#11
Rohit Aiyer, Vivek Jain, Anurag Bhatia, Boris Mekinulov, Semih Gungor
We report a case of a 57-year-old male patient with intrathecal morphine pump failure who presented with psychosis as part of a clinical presentation of opioid withdrawal. The patient was being treated for chronic back pain with an intrathecal morphine pump for several years. The patient spontaneously started to experience psychotic symptoms which included disorganized thinking, delusional thoughts, paranoia, auditory and visual hallucinations. Upon interrogation of intrathecal pump, it was found not to be functioning, thereby not delivering intrathecal morphine...
February 28, 2017: Pain Management
https://www.readbyqxmd.com/read/28326117/impaired-social-and-role-function-in-ultra-high-risk-for-psychosis-and-first-episode-schizophrenia-its-relations-with-negative-symptoms
#12
So Jung Lee, Kyung Ran Kim, Su Young Lee, Suk Kyoon An
OBJECTIVE: Psychosocial dysfunction was a nettlesome of schizophrenia even in their prodromal phase as well as first episode and its relations with psychopathology were not determined. The aim of the present study was to examine whether the social and role function impairment was found in ultra-high risk for psychosis (UHR) individuals as well as first-episode schizophrenia patients and to explore its relations with psychopathology. METHODS: Thirty-seven normal controls, 63 UHR participants and 28 young, first-episode schizophrenia patients were recruited...
March 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28325573/brain-network-characteristics-separating-individuals-at-clinical-high-risk-for-psychosis-into-normality-or-psychosis
#13
Soo-Hee Choi, Sunghyon Kyeong, Kang Ik K Cho, Je-Yeon Yun, Tae Young Lee, Hye Yoon Park, Sung Nyun Kim, Jun Soo Kwon
We aimed to separate individuals at clinical high risk for psychosis (CHR) state into subgroups according to neurobiological characteristics using structural and functional network constructs and examine their clinical characteristics. Structural diffusion tensor imaging and resting-state functional magnetic resonance imaging were performed in 61 healthy controls (HC), 57 individuals at CHR and 29 patients with schizophrenia (SZ). The main outcome was a likelihood ratio calculated from measures of structural and functional network efficiencies, coupling strength of structural and functional networks, and a disease-specific data analysis, resulting in the most probable classification of CHR into HC or SZ...
March 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28325572/lipid-profile-disturbances-in-antipsychotic-naive-patients-with-first-episode-non-affective-psychosis-a-systematic-review-and-meta-analysis
#14
REVIEW
Błażej Misiak, Bartłomiej Stańczykiewicz, Łukasz Łaczmański, Dorota Frydecka
BACKGROUND: Dyslipidaemia is one of the most prevalent metabolic disturbances observed in schizophrenia patients and has been largely attributed to the effects of poor lifestyle habits and adverse effects of antipsychotic treatment. However, less is known whether patients with first-episode non-affective psychosis (FENP) present subthreshold indices of dyslipidaemia. Therefore, we tested the hypothesis whether subclinical lipid profile alterations occur already in antipsychotic-naïve FENP patients...
March 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28325158/-clinical-application-of-rom-in-psychosis
#15
M Tasma, M Swart, G Wolters, E J Liemburg, R Bruggemans, H Knegtering, S Castelein
AIM: The use of 'routine outcome monitoring' (ROM) in mental health care has increased widely during the past decade. However, little is known about the use of ROM outcome in daily clinical practice. We investigated to what extent ROM results were reflected in psychotic patients' treatment plans. DESIGN: Cross-sectional study. METHOD: The ROM-Phamous, a ROM-protocol for patients with psychotic disorders in which data is collected on the basis of interviews, questionnaires and physical examination was implemented in the northern Netherlands...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28323286/erythrocyte-glutathione-levels-as-long-term-predictor-of-transition-to-psychosis
#16
S Lavoie, M Berger, M Schlögelhofer, M R Schäfer, S Rice, S-W Kim, J Hesse, P D McGorry, S Smesny, G P Amminger
A high proportion of individuals deemed at elevated risk for psychosis will actually never progress to develop the illness. Pharmaceutical intervention may not be necessary in these cases, and may in fact be damaging depending on the invasiveness of the treatment strategy. This highlights the need for biomarkers that are better able to reliably differentiate between at-risk individuals who will subsequently transition to psychosis and those who will not. Low glutathione (GSH) levels have been observed in schizophrenia and in patients with first-episode psychosis...
March 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28321200/the-importance-of-metamemory-functioning-to-the-pathogenesis-of-psychosis
#17
REVIEW
Sarah Eisenacher, Mathias Zink
Many studies up to date have implied that biases in the metacognition of memory, so called metamemory, contribute to the development and maintenance of positive symptoms in schizophrenia. However, no study exists which has longitudinally followed patients experiencing positive symptoms. The present article therefore reviews cross-sectional studies on retrospective metamemory abilities in participants within different stages of a schizophrenia spectrum disorder, with heterogeneous symptom severities, creating a pseudo-longitudinal overview...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28321193/early-psychosis-and-trauma-related-disorders-clinical-practice-guidelines-and-future-directions
#18
Casey A Cragin, Martha B Straus, Dawn Blacker, Laura M Tully, Tara A Niendam
Despite high rates of trauma-related disorders among individuals with early psychosis, no clinical practice guidelines for the treatment of comorbid early psychosis and trauma-related disorders exist to date. Indeed, the routine exclusion of individuals with past and current psychosis from participation in trauma research and practice has limited the accumulation of research that could support such clinical practice guidelines. While preliminary research evidence suggests that traditional, evidence-based treatments for trauma-related disorders can be safely and effectively employed to reduce symptoms of posttraumatic stress and chronic psychosis, it remains unclear whether such treatments are appropriate for individuals in the early stages of psychotic illness...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28320226/functional-neuroimaging-predictors-of-self-reported-psychotic-symptoms-in-adolescents
#19
Josiane Bourque, Philip A Spechler, Stéphane Potvin, Robert Whelan, Tobias Banaschewski, Arun L W Bokde, Uli Bromberg, Christian Büchel, Erin Burke Quinlan, Sylvane Desrivières, Herta Flor, Vincent Frouin, Penny Gowland, Andreas Heinz, Bernd Ittermann, Jean-Luc Martinot, Marie-Laure Paillère-Martinot, Sarah C McEwen, Frauke Nees, Dimitri Papadopoulos Orfanos, Tomáš Paus, Luise Poustka, Michael N Smolka, Nora C Vetter, Henrik Walter, Gunter Schumann, Hugh Garavan, Patricia J Conrod
OBJECTIVE: This study investigated the neural correlates of psychotic-like experiences in youths during tasks involving inhibitory control, reward anticipation, and emotion processing. A secondary aim was to test whether these neurofunctional correlates of risk were predictive of psychotic symptoms 2 years later. METHOD: Functional imaging responses to three paradigms-the stop-signal, monetary incentive delay, and faces tasks-were collected in youths at age 14, as part of the IMAGEN study...
March 21, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28320191/c9orf72-hexanucleotide-repeat-expansions-are-not-a-common-cause-of-obsessive-compulsive-disorder
#20
Karissa C Arthur, Alberto M Rivera, Jack Samuels, Ying Wang, Marco Grados, Fernando S Goes, Brion Maher, Gerald Nestadt, Bryan J Traynor
Obsessive-compulsive disorder (OCD) is a polygenic neuropsychiatric disorder characterized by repetitive thoughts and behaviors that cause distress. The pathogenic repeat expansion [GGGGCC]n found at the C9orf72 locus is the most common cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), and has also been documented in patients with psychosis and schizophrenia. Furthermore, obsessions and compulsions have been identified in patients diagnosed with ALS and/or FTD and carrying the pathogenic repeat expansion...
April 15, 2017: Journal of the Neurological Sciences
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