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Shabnam Nohesara, Mohammad Ghadirivasfi, Mahmood Barati, Mohammad-Reza Ghasemzadeh, Samira Narimani, Zohreh Mousavi-Behbahani, Mohammadtaghi Joghataei, Mansoureh Soleimani, Mozhgan Taban, Soraya Mehrabi, Sam Thiagalingam, Hamid Mostafavi Abdolmaleky
Methamphetamine, one of the most frequently used illicit drugs worldwide, can induce psychosis in a large fraction of abusers and it is becoming a major problem for the health care institutions. There is some evidence that genetic and epigenetic factors may play roles in methamphetamine psychosis. In this study, we examined methamphetamine-induced epigenetic and expression changes of several key genes involved in psychosis. RNA and DNA extracted from the saliva samples of patients with methamphetamine dependency with and without psychosis as well as control subjects (each group 25) were analyzed for expression and promoter DNA methylation status of DRD1, DRD2, DRD3, DRD4, MB-COMT, GAD1, and AKT1 using qRT-PCR and q-MSP, respectively...
October 18, 2016: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
Ian Brockington
A study of several hundred recurrent puerperal psychoses shows that about half of those with known onset recur in the same phase of reproduction, and half have onsets in different phases. Onsets in the same phase are especially a feature of prepartum psychosis and are the strongest indication of a specific trigger operating during pregnancy. Onsets in different phases provide a prima facie case for links between 'puerperal psychosis' and other reproductive onsets. They suggest that the 'picture puzzle' is not just about early onset puerperal psychosis, but a group of related reproductive triggers...
October 17, 2016: Archives of Women's Mental Health
Joachim Cordes, Andreas Bechdolf, Christina Engelke, Kai G Kahl, Chakrapani Balijepalli, Christian Lösch, Joachim Klosterkötter, Michael Wagner, Wolfgang Maier, Andreas Heinz, Walter de Millas, Wolfgang Gaebel, Georg Winterer, Birgit Janssen, Christian Schmidt-Kraepelin, Frank Schneider, Martin Lambert, Georg Juckel, Thomas Wobrock, Michael Riedel, Susanne Moebus
Metabolic Syndrome (MetS) is one of the most common factors underlying the high rate of mortality observed in patients with schizophrenia. Recent research on this topic revealed that many of the patients studied were, in fact, in a medicated state. As such, it is unclear whether MetS is causally associated with the disorder itself or the medication used to treat it. In this study, patients with a clinically high risk of expressing first episode psychosis (CHR) were examined regarding the prevalence of MetS...
October 14, 2016: Schizophrenia Research
Ola Söderström, Lilith Abrahamyan Empson, Zoé Codeluppi, Dag Söderström, Philipp S Baumann, Philippe Conus
Primarily on the basis of epidemiological studies, recent research in psychiatry has established a robust link between urban living and psychosis. This paper argues first, that an experienced-based approach, moving beyond epidemiology, is needed in order to enable more fine-grained understandings of the city/psychosis nexus. The second part of the paper presents preliminary fieldwork results based on video-elicitation sessions with first-episode patients with psychotic disorders. These results lead to the generation of a series of hypotheses for further research on the role of density, sensory overload and social interaction as factors in the onset of non-affective psychoses...
October 14, 2016: Health & Place
Michael M Neeki, Christine Au, Aurora Richard, Carlos Peace, Sharon Jaques, Jens Johansson
PURPOSE: We aimed to describe a case of an incarcerated adolescent with acute disseminated encephalomyelitis (ADEM) presenting as acute psychosis. METHODS: This was a retrospective case report followed with chart and literature review. MAIN FINDINGS: An adolescent with ADEM presented with drastic behavior and personality changes that led to her incarceration for serious charges. Acute disseminated encephalomyelitis leads to neuropsychiatric effects and can be seen with magnetic resonance imaging as a large mass effect that may result in a poor prognosis...
October 4, 2016: Pediatric Emergency Care
Eduardo Fonseca-Pedrero, Alex Cohen, Javier Ortuño-Sierra, Alicia Pérez de Álbeniz, José Muñiz
The main goal of the present study was to test the measurement equivalence of the Schizotypal Personality Questionnaire - Brief Revised (SPQ-BR) scores in a large sample of Spanish and American non-clinical young adults. The sample was made up of 5,625 young adults (M = 19.65 years; SD = 2.53; 38.5% males). Study of the internal structure, using confirmatory factor analysis (CFA), revealed that SPQ-BR items were grouped in a theoretical internal structure of nine first-order factors. Moreover, three or four second-order factor and bifactor models showed adequate goodness-of-fit indices...
October 17, 2016: Journal of Personality Disorders
Huai-Hsuan Tseng, Jonathan P Roiser, Gemma Modinos, Irina Falkenberg, Carly Samson, Philip McGuire, Paul Allen
Emotional processing dysfunction is widely reported in patients with chronic schizophrenia and first-episode psychosis (FEP), and has been linked to functional abnormalities of corticolimbic regions. However, corticolimbic dysfunction is less studied in people at ultra-high risk for psychosis (UHR), particularly during processing prosodic voices. We examined corticolimbic response during an emotion recognition task in 18 UHR participants and compared them with 18 FEP patients and 21 healthy controls (HC). Emotional recognition accuracy and corticolimbic response were measured during functional magnetic resonance imaging (fMRI) using emotional dynamic facial and prosodic voice stimuli...
2016: NeuroImage: Clinical
Martino Belvederi Murri, Flaminia Fanelli, Uberto Pagotto, Elena Bonora, Federico Triolo, Luigi Chiri, Fabio Allegri, Marco Mezzullo, Marco Menchetti, Valeria Mondelli, Carmine Pariante, Domenico Berardi, Ilaria Tarricone
Neuroactive steroids may play a role in the pathophysiology of psychotic disorders, but few studies examined this issue. We compared serum levels of cortisol, testosterone, dehydroepiandrosterone, and progesterone between a representative sample of first-episode psychosis (FEP) patients and age- and gender-matched healthy subjects. Furthermore, we analyzed the associations between neuroactive steroids levels and the severity of psychotic symptom dimensions. Male patients had lower levels of progesterone than controls (p = 0...
2016: Schizophrenia Research and Treatment
Jacob Taylor, William S Anderson, Jason Brandt, Zoltan Mari, Gregory M Pontone
Although Parkinson disease (PD) is defined clinically by its motor symptoms, it is increasingly recognized that much of the disability and worsened quality of life experienced by patients with PD is attributable to psychiatric symptoms. The authors describe a model of multidisciplinary care that enables these symptoms to be effectively managed. They describe neuropsychiatric complications of PD itself and pharmacologic and neurostimulation treatments for parkinsonian motor symptoms and discuss the management of these complications...
September 3, 2016: American Journal of Geriatric Psychiatry
Liina Haring, René Mõttus, Kärolin Kajalaid, Kadri Koch, Kärt Uppin, Eduard Maron, Eero Vasar
Our aim with the present study was to evaluate rank-order and mean-level cognitive functioning stability among first-episode psychosis (FEP) patients, measured using the Cambridge Neuropsychological Test Automated Battery (CANTAB), over a six month period. We also aimed to examine longitudinal measurement invariance and identify factors-such as age, gender, educational level, treatment and psychopathological change scores-potentially linked to cognitive change among patients. In addition, correlations between objectively measured and subjectively evaluated cognitive functioning were estimated...
October 13, 2016: Schizophrenia Research
Sarah Tully, Adrian Wells, Melissa Pyle, Jemma Hudson, Andrew Gumley, David Kingdon, Matthias Schwannauer, Douglas Turkington, Anthony P Morrison
Responses to psychotic experiences are central to cognitive models of psychosis. The current study aimed to develop and validate a self-report measure of common responses to the experience of psychosis. This measure is needed as cognitive and behavioural responses are implicated in the maintenance of psychosis, but there is currently no measure that comprehensively assesses these maintaining factors. The Measure of Common Responses to psychosis (MCR) was developed and utilised in a sample of 487 participants who met criteria for treatment-resistant schizophrenia...
October 13, 2016: Schizophrenia Research
Toby T Winton-Brown, Thomas Elanjithara, Paddy Power, Ricardo Coentre, Pablo Blanco-Polaina, Philip McGuire
BACKGROUND: A key problem in the management of first episode psychosis is that patients are often reluctant to take antipsychotic medication, especially once their presenting symptoms have resolved. Clinicians may be tempted to trial a 'break in treatment' in such patients. AIM: To assess the impact of interruptions in the antipsychotic treatment of first episode psychosis. METHOD: Treatment adherence and clinical course were assessed during the 18months following presentation in 136 consecutive patients with a first episode of psychosis in 2003-2005 by a systematic retrospective casenote review...
October 10, 2016: Schizophrenia Research
Ian Brockington
In addition to bipolar cycloid episodes, infective delirium and eclamptic psychosis, each of which has characteristic clinical features and course, brief episodes of delirium and stupor are also seen in the immediate aftermath of parturition. Several mothers have had similar episodes developing later in the first 10 days, and some have cyclical disorders with an unusual time base. Bipolar/cycloid disorders can start on day 1 or even earlier.
October 16, 2016: Archives of Women's Mental Health
Anne Marie Greenhalgh, Leticia Gonzalez-Blanco, Clemente Garcia-Rizo, Emilio Fernandez-Egea, Brian Miller, Miguel Bernardo Arroyo, Brian Kirkpatrick
BACKGROUND: Some studies have suggested that antipsychotic-naïve patients with nonaffective psychosis (NAP) have glucose intolerance. AIMS: To conduct a systematic review and meta-analysis of fasting glucose (FG), two hour values in the oral glucose tolerance test (2HG), fasting insulin concentration (INS), and insulin resistance (IR). METHOD: We identified possibly relevant studies, then selected studies, following usual guidelines, with two authors reviewing the manuscripts...
October 13, 2016: Schizophrenia Research
Pedro Caldana Gordon, Maria Sheila G Rocha, Roberta Gomes Kauark, Carlos Daniel Miranda Costa, Maira Okada de Oliveira, Fabio Godinho, Vanderci Borges
OBJECTIVES: Parkinson disease (PD) psychosis is a condition associated with several negative outcomes. Despite its impact, there is a lack of validated diagnostic tools for this condition. In this study, we aim to verify the validity of the proposed NINDS criteria for PD psychosis and explore its possible applications in clinical practice. DESIGN, SETTINGS, PARTICIPANTS: We prospectively selected 104 subjects with idiopathic PD referred to a movement disorder clinic for a cross-sectional evaluation...
August 26, 2016: American Journal of Geriatric Psychiatry
Lauren M Hickling, Victor Ortiz-García de la Foz, Rosa Ayesa-Arriola, Benedicto Crespo-Facorro, Philip McGuire, Rocio Perez-Iglesias
BACKGROUND AND AIMS: Research suggests that tobacco smokers may develop psychosis at an earlier age than non-smokers, with effects on psychotic symptoms. We aimed to test the difference in age of onset of psychosis between smokers and non-smokers . Design Self-report data was collected from smokers and non-smokers in a population of first episode psychosis patients. SETTING: Outpatient first episode psychosis programme in Santander (Cantabria), Spain. PARTICIPANTS: Three hundred and ninety seven patients (226 male, 171 female) who agreed to take part between 2001 and 2011...
October 14, 2016: Addiction
Eric Josiah Tan, Giorgia A Wagner, Susan Lee Rossell
Semantic processing is impaired in schizophrenia, and is often assessed using word-based semantic tasks that additionally require lexical processing for accurate performance. This study aimed to examine lexical processing in relation to psychosis proneness. 61 individuals (mean age=22.92, SD=2.67) completed a schizotypy questionnaire and two lexical processing tasks (recognition and production). Results revealed no relationship between increasing schizotypy scores and overall performance on either lexical processing task...
September 28, 2016: Psychiatry Research
Ian Brockington
It was observed nearly 200 years ago that mothers with puerperal psychosis may recover, then relapse, sometimes repeatedly. This phenomenon seems to be better recognized in the American and French literature, where it has been reported in a large minority, or even majority, of cases. It offers an opportunity to study the pathogenesis of psychosis.
October 13, 2016: Archives of Women's Mental Health
Fabienne Harrisberger, Roman Buechler, Renata Smieskova, Claudia Lenz, Anna Walter, Laura Egloff, Kerstin Bendfeldt, Andor E Simon, Diana Wotruba, Anastasia Theodoridou, Wulf Rössler, Anita Riecher-Rössler, Undine E Lang, Karsten Heekeren, Stefan Borgwardt
Reduction in hippocampal volume is a hallmark of schizophrenia and already present in the clinical high-risk state. Nevertheless, other subcortical structures, such as the thalamus, amygdala and pallidum can differentiate schizophrenia patients from controls. We studied the role of hippocampal and subcortical structures in clinical high-risk individuals from two cohorts. High-resolution T1-weighted structural MRI brain scans of a total of 91 clinical high-risk individuals and 64 healthy controls were collected in two centers...
2016: NPJ Schizophrenia
Kelly K Anderson, Paul Kurdyak
OBJECTIVE: Physician follow-up after a first diagnosis of psychotic disorder is crucial for improving treatment engagement. We examined the factors associated with physician follow-up within 30 days of a first diagnosis of schizophrenia. METHOD: We conducted a retrospective cohort study using linked health administrative data to identify incident cases of schizophrenia between 1999 and 2008 among people aged 14 to 35 years in Ontario. We estimated the proportion of patients who had physician follow-up within 30 days of the index diagnosis...
October 13, 2016: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
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