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Early onset psychosis

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https://www.readbyqxmd.com/read/28436341/insular-pathology-in-young-people-with-high-functioning-autism-and-first-episode-psychosis
#1
M Parellada, L Pina-Camacho, C Moreno, Y Aleman, M-O Krebs, M Desco, J Merchán-Naranjo, A Del Rey-Mejías, L Boada, C Llorente, D Moreno, C Arango, J Janssen
BACKGROUND: Autism Spectrum Disorders (ASD) and psychosis share deficits in social cognition. The insular region has been associated with awareness of self and reality, which may be basic for proper social interactions. METHODS: Total and regional insular volume and thickness measurements were obtained from a sample of 30 children and adolescents with ASD, 29 with early onset first-episode psychosis (FEP), and 26 healthy controls (HC). Total, regional, and voxel-level volume and thickness measurements were compared between groups (with correction for multiple comparisons), and the relationship between these measurements and symptom severity was explored...
April 24, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28419390/adolescent-stress-as-a-driving-factor-for-schizophrenia-development-a-basic-science-perspective
#2
Felipe V Gomes, Anthony A Grace
Schizophrenia has been associated with heightened stress responsivity in adolescence that precedes onset of psychosis. We now report that multiple stressors during adolescence in normal rats leads to deficits in adults analogous to that seen in schizophrenia patients. Moreover, impairment of stress control by lesion of the prelimbic prefontal cortex in adolescence caused previously subthreshold levels of stress to induce these deficit states when tested as adults. Thus, predisposition to stress hyper-responsivity, or exposure to substantial stressors, during adolescence can trigger a cascade of events that result in a schizophrenia-like profile in adults...
May 1, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28418227/barriers-and-facilitators-to-implementing-family-support-and-education-in-early-psychosis-intervention-programmes-a-systematic-review
#3
REVIEW
Avra Selick, Janet Durbin, Nhi Vu, Karen O'Connor, Tiziana Volpe, Elizabeth Lin
Family support is a core component of the Early Psychosis Intervention (EPI) model, yet it continues to have relatively low rates of implementation in practice. This paper reports results of a literature review on facilitators and barriers to delivering family interventions in EPI programmes. A search was conducted of 4 electronic databases, Medline, EMBASE, PsycINFO and Joanna Briggs, from 2000 to 2015 using terms related to early onset psychosis, family work and implementation. Four thousand four hundred and two unique studies were identified, 7 of which met inclusion criteria...
April 18, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28401151/white-matter-integrity-in-genetic-high-risk-individuals-and-first-episode-schizophrenia-patients-similarities-and-disassociations
#4
Yifang Zhou, Jie Liu, Naomi Driesen, Fay Womer, Kaiyuan Chen, Ye Wang, Xiaowei Jiang, Qian Zhou, Chuan Bai, Dahai Wang, Yanqing Tang, Fei Wang
White matter (WM) neuroimaging studies have shown varied findings at different stages of schizophrenia (SZ). Understanding these variations may elucidate distinct markers of genetic vulnerability and conversion to psychosis. To examine the similarities and differences in WM connectivity between those at-risk for and in early stages of SZ, a cross-sectional diffusion tensor imaging study of 48 individuals diagnosed with first-episode SZ (FE-SZ), 37 nonpsychotic individuals at a high genetic risk of SZ (GHR-SZ), and 67 healthy controls (HC) was conducted...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28400970/niemann-pick-type-c-disease-the-tip-of-the-iceberg-a-review-of-neuropsychiatric-presentation-diagnosis-and-treatment
#5
REVIEW
William R H Evans, Chris J Hendriksz
Niemann-Pick type C (NP-C) disease is a rare neurodegenerative lysosomal storage disorder. It is highly heterogeneous, and there is limited awareness of a substantial subgroup that has an attenuated adolescent/adult-onset disease. In these patients psychiatric features, often a psychosis, may dominate the initial impression, although often there is an associated ataxia and cognitive impairment. Typically, patients experience a substantial diagnostic delay. In this review we highlight the importance of early recognition and discuss the pathophysiology, neuropsychiatric presentation and recent changes in the investigation and work-up of these patients, and treatment options...
April 2017: BJPsych Bulletin
https://www.readbyqxmd.com/read/28395674/antipsychotic-treatment-resistance-in-first-episode-psychosis-prevalence-subtypes-and-predictors
#6
A Demjaha, J M Lappin, D Stahl, M X Patel, J H MacCabe, O D Howes, M Heslin, U A Reininghaus, K Donoghue, B Lomas, M Charalambides, A Onyejiaka, P Fearon, P Jones, G Doody, C Morgan, P Dazzan, R M Murray
BACKGROUND: We examined longitudinally the course and predictors of treatment resistance in a large cohort of first-episode psychosis (FEP) patients from initiation of antipsychotic treatment. We hypothesized that antipsychotic treatment resistance is: (a) present at illness onset; and (b) differentially associated with clinical and demographic factors. METHOD: The study sample comprised 323 FEP patients who were studied at first contact and at 10-year follow-up...
April 11, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28373685/early-neuromodulation-prevents-the-development-of-brain-and-behavioral-abnormalities-in-a-rodent-model-of-schizophrenia
#7
R Hadar, L Bikovski, M L Soto-Montenegro, J Schimke, P Maier, S Ewing, M Voget, F Wieske, T Götz, M Desco, C Hamani, J Pascau, I Weiner, C Winter
The notion that schizophrenia is a neurodevelopmental disorder in which neuropathologies evolve gradually over the developmental course indicates a potential therapeutic window during which pathophysiological processes may be modified to halt disease progression or reduce its severity. Here we used a neurodevelopmental maternal immune stimulation (MIS) rat model of schizophrenia to test whether early targeted modulatory intervention would affect schizophrenia's neurodevelopmental course. We applied deep brain stimulation (DBS) or sham stimulation to the medial prefrontal cortex (mPFC) of adolescent MIS rats and respective controls, and investigated its behavioral, biochemical, brain-structural and -metabolic effects in adulthood...
April 4, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28351597/neuropsychology-of-subjects-with-ultra-high-risk-uhr-of-psychosis-a-critical-analysis-of-the-literature
#8
C Mam-Lam-Fook, C Danset-Alexandre, L Pedron, I Amado, R Gaillard, M-O Krebs
Cognitive disorders are currently considered as central components of disorders found in schizophrenia and are a major handicap for patients day to day. These disorders appear before the first psychotic episode, in the prodromal phase, during which time the symptoms are below the threshold for psychosis. People with these symptoms are considered as presenting an at-risk mental state (or at ultra-high risk, UHR of psychosis) and their risk for psychotic transition is between 20% and 40% within one year. Despite a number of studies, the chronology in which cognitive disorders appear in relation to the psychotic symptoms has not clearly been established and the study of the links between cognition and symptoms could improve our understanding of psychotic disorders...
March 25, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28347521/-detection-and-early-treatment-of-subjects-at-high-risk-of-clinical-psychosis-definitions-and-recommendations
#9
C Michel, E Toffel, S J Schmidt, S Eliez, M Armando, A Solida-Tozzi, F Schultze-Lutter, M Debbané
In children and adolescents, psychotic disorders already represent one of the leading causes of disability-adjusted life years. During the past two decades, early detection of risk for psychosis has been intensively investigated, and in particular, predictive power for early signs of risk has been initiated and translated into clinical practice. In particular, the attenuated and transient positive symptoms of the ultra-high risk criteria, and the basic symptom criterion "cognitive disturbances", open promising routes to an indicated prevention and have recently been considered by the European Psychiatric Association (EPA) as diagnostic criteria of a psychosis-risk syndrome...
March 24, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28315846/risk-factors-for-early-psychosis-in-pd-insights-from-the-parkinson-s-progression-markers-initiative
#10
Dominic H Ffytche, Joana B Pereira, Clive Ballard, K Ray Chaudhuri, Daniel Weintraub, Dag Aarsland
BACKGROUND: Parkinson's Disease (PD) psychosis refers to the spectrum of illusions, formed hallucinations and delusions that occur in PD. Visual hallucinations and illusions are thought to be caused by specific cognitive and higher visual function deficits and patients who develop such symptoms early in the disease course have greater rates of cognitive decline and progression to dementia. To date, no studies have investigated whether such deficits are found prior to the onset of PD psychosis...
April 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28314460/schizophrenia-and-psychosis-diagnosis-current-research-trends-and-model-treatment-approaches-with-implications-for-transitional-age-youth
#11
REVIEW
Vivien Chan
This article reviews the current state of diagnosis and treatment of schizophrenia, describing the recent proliferation of research in high-risk psychosis spectrum conditions, which are different from childhood-onset and early onset schizophrenia, and findings of psychotic-like experiences in the normal population. Taken from adult and childhood literature, clinical quandaries in accurate diagnosis, and treatment gaps in co-occurring, or sometimes confounding, conditions are discussed. Thoughts on the impact of schizophrenia on an emerging adulthood trajectory are offered...
April 2017: Child and Adolescent Psychiatric Clinics of North America
https://www.readbyqxmd.com/read/28304340/neuroinflammation-and-oxidative-stress-in-psychosis-and-psychosis-risk
#12
REVIEW
Henry Barron, Sina Hafizi, Ana C Andreazza, Romina Mizrahi
Although our understanding of psychotic disorders has advanced substantially in the past few decades, very little has changed in the standard of care for these illnesses since the development of atypical anti-psychotics in the 1990s. Here, we integrate new insights into the pathophysiology with the increasing interest in early detection and prevention. First, we explore the role of N-methyl-d-aspartate receptors in a subpopulation of cortical parvalbumin-containing interneurons (PVIs). Postmortem and preclinical data has implicated these neurons in the positive and negative symptoms, as well as the cognitive dysfunction present in schizophrenia...
March 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28291864/sex-specific-cognitive-abnormalities-in-early-onset-psychosis
#13
Miguel Ruiz-Veguilla, Josefa Moreno-Granados, Maria D Salcedo-Marin, Maria L Barrigon, Maria J Blanco-Morales, Evelio Igunza, Anselmo Cañabate, Maria D Garcia, Teresa Guijarro, Francisco Diaz-Atienza, Maite Ferrin
Objectives: Brain maturation differs depending on the area of the brain and sex. Girls show an earlier peak in maturation of the prefrontal cortex. Although differences between adult females and males with schizophrenia have been widely studied, there has been less research in girls and boys with psychosis. The purpose of this study was to examine differences in verbal and visual memory, verbal working memory, auditory attention, processing speed, and cognitive flexibility between boys and girls...
January 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28288547/neuropsychological-correlates-of-schizotypy-a-systematic-review-and-meta-analysis-of-cross-sectional-studies
#14
Sara Siddi, Donatella Rita Petretto, Antonio Preti
INTRODUCTION: Cognitive deficits can precede the onset of psychotic episodes and predict the onset of the illness in individuals with schizotypy traits. In some studies, high levels of schizotypy were associated with impairments in memory, attention, executive functions, and verbal fluency. This review provides a more comprehensive understanding of cognitive impairments related to schizoytpy. METHODS:  A systematic review of "schizotypy and neuropsychological measures" was conducted, and it retrieved 67 studies...
March 13, 2017: Cognitive Neuropsychiatry
https://www.readbyqxmd.com/read/28276873/the-hidden-niemann-pick-type-c-patient-clinical-niches-for-a-rare-inherited-metabolic-disease
#15
Christian J Hendriksz, Mathieu Anheim, Peter Bauer, Olivier Bonnot, Anupam Chakrapani, Jean-Christophe Corvol, Tom J de Koning, Anna Degtyareva, Carlo Dionisi-Vici, Sarah Doss, Thomas Duning, Paola Giunti, Rosa Iodice, Tracy Johnston, Dierdre Kelly, Hans-Hermann Klünemann, Stefan Lorenzl, Alessandro Padovani, Miguel Pocovi, Matthis Synofzik, Alta Terblanche, Florian Then Bergh, Meral Topçu, Christine Tranchant, Mark Walterfang, Christian Velten, Stefan A Kolb
BACKGROUND: Niemann-Pick disease type C (NP-C) is a rare, inherited neurodegenerative disease of impaired intracellular lipid trafficking. Clinical symptoms are highly heterogeneous, including neurological, visceral, or psychiatric manifestations. The incidence of NP-C is under-estimated due to under-recognition or misdiagnosis across a wide range of medical fields. New screening and diagnostic methods provide an opportunity to improve detection of unrecognized cases in clinical sub-populations associated with a higher risk of NP-C...
May 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28274337/catatonia-among-women-with-postpartum-psychosis-in-a-mother-baby-inpatient-psychiatry-unit
#16
Abhinav Nahar, Nithin Kondapuram, Geetha Desai, Prabha S Chandra
OBJECTIVE: The aims of the present study were to determine the prevalence of catatonia in women with postpartum psychosis, describe its socio demographic, clinical and obstetric correlates and identify predictors of treatment response. METHODS: Data was extracted from clinical charts of 200 women with postpartum psychosis admitted to an inpatient mother baby unit (MBU) in India over a 3year period. RESULTS: Of the 200 patients, 20% (n=40) had symptoms of catatonia...
March 2017: General Hospital Psychiatry
https://www.readbyqxmd.com/read/28238739/consensus-based-recommendations-for-the-management-of-rapid-cognitive-decline-due-to-alzheimer-s-disease
#17
Jianping Jia, Serge Gauthier, Sarah Pallotta, Yong Ji, Wenshi Wei, Shifu Xiao, Dantao Peng, Qihao Guo, Liyong Wu, Shengdi Chen, Weihong Kuang, Junjian Zhang, Cuibai Wei, Yi Tang
INTRODUCTION: Rapid cognitive decline (RCD) occurs in dementia due to Alzheimer's disease (AD). METHODS: Literature review, consensus meetings, and a retrospective chart review of patients with probable AD were conducted. RESULTS: Literature review showed that RCD definitions varied. Mini-Mental State Examination scores <20 at treatment onset, vascular risk factors, age <70 years at symptom onset, higher education levels, and early appearance of hallucinations, psychosis, or extrapyramidal symptoms are recognized RCD risk factors...
February 24, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28219788/immersion-in-altered-experience-an-investigation-of-the-relationship-between-absorption-and-psychopathology
#18
REVIEW
Cherise Rosen, Nev Jones, Kayla A Chase, Jennifer K Melbourne, Linda S Grossman, Rajiv P Sharma
Understanding alterations in perceptual experiences as a component of the basic symptom structure of psychosis may improve early detection and the identification of subtle shifts that can precede symptom onset or exacerbation. We explored the phenomenological construct of absorption and psychotic experiences in both clinical (bipolar psychosis and schizophrenia spectrum) and non-clinical participants. Participants with psychosis endorsed significantly higher absorption compared to the non-clinical group. Absorption was positively correlated with all types of hallucinations and multiple types of delusions...
March 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28219487/evidence-for-the-risks-and-consequences-of-adolescent-cannabis-exposure
#19
REVIEW
Amir Levine, Kelly Clemenza, Moira Rynn, Jeffrey Lieberman
OBJECTIVE: This review of the scientific literature examines the potential adult sequelae of exposure to cannabis and related synthetic cannabinoids in adolescence. We examine the four neuropsychiatric outcomes that are likely most vulnerable to alteration by early cannabinoid use, as identified within both the clinical and preclinical research: cognition, emotional functioning, risk for psychosis, and addiction. METHOD: A literature search was conducted through PubMed, PsychInfo, and Google Scholar with no publication date restrictions...
March 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28213813/waiting-time-variation-in-early-intervention-psychosis-services-longitudinal-evidence-from-the-sepea-naturalistic-cohort-study
#20
James B Kirkbride, Y Hameed, L Wright, K Russell, C Knight, J Perez, P B Jones
PURPOSE: Early Intervention Psychosis [EIP] services have gained traction internationally, but are currently undergoing various forms of reconfiguration. In England, such services are now mandated to ensure 50% of accepted referrals commence care within 14 days, but no empirical evidence exists. We sought to estimate waiting times to EIP services in a large, representative epidemiological cohort in England, and investigate possible reasons for any variation. METHODS: We estimated median waiting time from referral to acceptance by EIP services and investigated whether this varied by clinical, demographic or neighbourhood-level factors, amongst 798 participants, 16-35 years old, presenting to six EIP services over 3...
February 18, 2017: Social Psychiatry and Psychiatric Epidemiology
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