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Early onset psychosis

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https://www.readbyqxmd.com/read/28532646/the-novel-psen1-m84v-mutation-associated-to-frontal-dysexecutive-syndrome-spastic-paraparesis-and-cerebellar-atrophy-in-a-dominant-alzheimer-s-disease-family
#1
Maura Gallo, Francesca Frangipane, Chiara Cupidi, Matteo De Bartolo, Sabina Turone, Camilla Ferrari, Benedetta Nacmias, Giuliana Grimaldi, Valentina Laganà, Rosanna Colao, Livia Bernardi, Maria Anfossi, Maria Elena Conidi, Franca Vasso, Sabrina Anna Maria Curcio, Maria Mirabelli, Nicoletta Smirne, Giusi Torchia, Maria Gabriella Muraca, Gianfranco Puccio, Raffaele Di Lorenzo, Maristella Piccininni, Andrea Tedde, Raffaele Giovanni Maletta, Sandro Sorbi, Amalia Cecilia Bruni
We identified the novel PSEN1 pathogenic mutation M84V in 3 patients belonging to a large kindred affected by autosomal dominant Alzheimer's disease (AD). The clinical phenotype was characterized by early onset dementia in 14 affected subjects over 3 generations. Detailed clinical, imaging and genetic assessment was performed. We highlighted the presence of unusual symptoms such as frontal executive syndrome, psychosis and spastic paraparesis in these patients. Spastic paraparesis has been reported in other PSEN1 mutations in adjacent codons, suggesting that the position of the genetic defect may affect the clinical expression, although this phenotype can occur in mutations throughout the whole PSEN1 gene...
April 27, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28528196/a-review-of-psychiatric-co-morbidity-described-in-genetic-and-immune-mediated-movement-disorders
#2
REVIEW
K J Peall, M S Lorentzos, I Heyman, M A J Tijssen, M J Owen, R C Dale, M A Kurian
Psychiatric symptoms are an increasingly recognised feature of movement disorders. Recent identification of causative genes and autoantibodies has allowed detailed analysis of aetiologically homogenous subgroups, thereby enabling determination of the spectrum of psychiatric symptoms in these disorders. This review evaluates the incidence and type of psychiatric symptoms encountered in patients with movement disorders. A broad spectrum of psychiatric symptoms was identified across all subtypes of movement disorder, with depression, generalised anxiety disorder and obsessive-compulsive disorder being most common...
May 17, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28526280/an-overview-of-medical-risk-factors-for-childhood-psychosis-implications-for-research-and-treatment
#3
REVIEW
Marianna Giannitelli, Angèle Consoli, Marie Raffin, Renaud Jardri, Douglas F Levinson, David Cohen, Claudine Laurent-Levinson
OBJECTIVE: Psychotic disorders in childhood and early adolescence often progress to chronic schizophrenia, but in many cases there are diagnosable medical and genetic causes or risk factors. We reviewed our clinical experience and the relevant literature to identify these factors and to define their clinical features, appropriate work-up and treatment. METHOD: We reviewed the results of comprehensive medical evaluations of 160 psychotic children and adolescents in our center...
May 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28515556/subacute-noninfective-inflammatory-encephalopathy-our-experience-and-diagnostic-problems
#4
Sadanandavalli Retnaswami Chandra, Lakshminarayanapuram Gopal Viswanathan, Dodmalur Malikarjuna Sindhu, Anupama Ramakanth Pai
INTRODUCTION: Immune dysregulation associated encephalopathies present with significant psychiatric manifestations and only a few soft neurological and general systemic features. They are generally resistant to treatment with psychiatric medications. Generalized orthostatic myoclonus and faciobrachial dystonic seizures are mistaken as Creutzfeldt-Jakob disease and subacute sclerosing panencephalitis. PATIENTS AND METHODS: Forty-two patients seen during 2010-2015 and diagnosed as noninfective encephalopathy were analyzed...
March 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28486982/geographical-accessibility-and-duration-of-untreated-psychosis-distance-as-a-determinant-of-treatment-delay
#5
Erling Inge Kvig, Beate Brinchmann, Cathrine Moe, Steinar Nilssen, Tor Ketil Larsen, Knut Sørgaard
BACKGROUND: The duration of untreated psychosis is determined by both patient and service related factors. Few studies have considered the geographical accessibility of services in relation to treatment delay in early psychosis. To address this, we investigated whether treatment delay is co-determined by straight-line distance to hospital based specialist services in a mainly rural mental health context. METHODS: A naturalistic cross-sectional study was conducted among a sample of recent onset psychosis patients in northern Norway (n = 62)...
May 10, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28456857/age-effect-on-prevalence-of-ultra-high-risk-for-psychosis-symptoms-replication-in-a-clinical-sample-of-an-early-detection-of-psychosis-service
#6
Frauke Schultze-Lutter, Daniela Hubl, Benno G Schimmelmann, Chantal Michel
Higher frequencies of perceptual and lesser clinical significance of non-perceptual attenuated psychotic symptoms (APS) have been reported by 8- to 15-year-old of the general population compared to 16- to 40-year-old. We examined if such an age-effect can also be detected in a clinical never-psychotic sample (N = 133) referred to a specialized service for clinical suspicion of developing psychosis. APS and brief intermittent psychotic symptoms (BIPS) were assessed using items P1-P3 and P5 (non-perceptual), and P4 (perceptual) of the Structured Interview for Psychosis-Risk Syndromes, current axis-I disorders with the Mini-International Neuropsychiatric Interview, and psychosocial functioning with the Social and Occupational Functioning Assessment Scale...
April 29, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28445633/advanced-glycation-end-products-in-recent-onset-psychosis-indicate-early-onset-of-cardiovascular-risk
#7
Julia M Hagen, Arjen L Sutterland, Maarten W Koeter, Rene Lutter, Dan Cohen, Lieuwe de Haan
OBJECTIVE: Profoundly increased mortality rates in schizophrenia, largely caused by a higher risk and earlier onset of cardiovascular disease, remain a major challenge. During the human lifespan, advanced glycation end products (AGEs) accumulate, and their concentration is strongly linked to cardiovascular mortality. AGE accumulation can be accelerated by several pathways, including oxidative stress. METHODS: From March 2015 through January 2016, a case-control study including 111 patients with a recent-onset psychosis, 135 controls from a validation cohort, and 286 healthy controls was performed...
April 25, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28436341/insular-pathology-in-young-people-with-high-functioning-autism-and-first-episode-psychosis
#8
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
#9
REVIEW
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
MULTICENTER STUDY
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
#18
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
#19
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
#20
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
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