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Early onset schizophrenia

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https://www.readbyqxmd.com/read/29201369/x-linked-adult-onset-adrenoleukodystrophy-psychiatric-and-neurological-manifestations
#1
Daniah Shamim, Karen Alleyne
Adult-onset adrenoleukodystrophy is a rare x-linked inborn error of metabolism occurring predominantly in males with onset in early 30s. Here, we report a 34-year-old male with first signs of disease in early 20s manifesting as a pure psychiatric disorder. Prior to onset of neurological symptoms, this patient demonstrated a schizophrenia and bipolar-like presentation. The disease progressed over the next 10-13 years and his memory and motor problems became evident around the age of 33 years. Subsequently, diagnostic testing showed the typical magnetic resonance imaging and lab findings for adult-onset adrenoleukodystrophy...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29180672/the-thalamic-reticular-nucleus-in-schizophrenia-and-bipolar-disorder-role-of-parvalbumin-expressing-neuron-networks-and-oxidative-stress
#2
P Steullet, J-H Cabungcal, S A Bukhari, M I Ardelt, H Pantazopoulos, F Hamati, T E Salt, M Cuenod, Kim Q Do, S Berretta
Growing evidence points to a disruption of cortico-thalamo-cortical circuits in schizophrenia (SZ) and bipolar disorder (BD). Clues for a specific involvement of the thalamic reticular nucleus (TRN) come from its unique neuronal characteristics and neural connectivity, allowing it to shape the thalamo-cortical information flow. A direct involvement of the TRN in SZ and BD has not been tested thus far. We used a combination of human postmortem and rodent studies to test the hypothesis that neurons expressing parvalbumin (PV neurons), a main TRN neuronal population, and associated Wisteria floribunda agglutinin-labeled perineuronal nets (WFA/PNNs) are altered in SZ and BD, and that these changes may occur early in the course of the disease as a consequence of oxidative stress...
November 28, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29179910/meaning-in-meaninglessness-the-propensity-to-perceive-meaningful-patterns-in-coincident-events-and-randomly-arranged-stimuli-is-linked-to-enhanced-attention-in-early-sensory-processing
#3
Christian Rominger, Günter Schulter, Andreas Fink, Elisabeth M Weiss, Ilona Papousek
Perception of objectively independent events or stimuli as being significantly connected and the associated proneness to perceive meaningful patterns constitute part of the positive symptoms of schizophrenia, which are associated with altered attentional processes in lateralized speech perception. Since perceiving meaningful patterns is to some extent already prevalent in the general population, the aim of the study was to investigate whether the propensity to experience meaningful patterns in co-occurring events and random stimuli may be associated with similar altered attentional processes in lateralized speech perception...
November 24, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29179725/high-resolution-chromosomal-microarray-analysis-in-paediatric-obsessive-compulsive-disorder
#4
Edna Grünblatt, Beatrice Oneda, Arif B Ekici, Juliane Ball, Julia Geissler, Steffen Uebe, Marcel Romanos, Anita Rauch, Susanne Walitza
BACKGROUND: Obsessive-Compulsive Disorder (OCD) is a common and chronic disorder in which a person has uncontrollable, reoccurring thoughts and behaviours. It is a complex genetic condition and, in case of early onset (EO), the patients manifest a more severe phenotype, and an increased heritability. Large (>500 kb) copy number variations (CNVs) previously associated with autism and schizophrenia have been reported in OCD. Recently, rare CNVs smaller than 500 kb overlapping risk loci for other neurodevelopmental conditions have also been reported in OCD, stressing the importance of examining CNVs of any size range...
November 28, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/29175199/towards-a-neurodynamical-understanding-of-the-prodrome-in-schizophrenia
#5
REVIEW
E Mikanmaa, T Grent-'t-Jong, Hua Lingling, M Recasens, H Thune, Peter J Uhlhaas
The identification of biomarkers for the early diagnosis of schizophrenia that could inform novel treatment developments is an important objective of current research. This paper will summarize recent work that has investigated changes in oscillatory activity and event-related potentials with Electro/Magnetoencephalography (EEG/MEG) in participants at high-risk for the development of schizophrenia, highlighting disruptions in sensory and cognitive operations prior to the onset of the syndrome. Changes in EEG/MEG-data are consistent with evidence for alterations in Glutamatergic and GABAergic neurotransmission as disclosed by Magnetic Resonance Spectroscopy and brain stimulation, indicating changes in Excitation/Inhibition Parameters prior to the onset of psychosis...
November 21, 2017: NeuroImage
https://www.readbyqxmd.com/read/29159045/identifying-functional-network-changing-patterns-in-individuals-at-clinical-high-risk-for-psychosis-and-patients-with-early-illness-schizophrenia-a-group-ica-study
#6
Yuhui Du, Susanna L Fryer, Dongdong Lin, Jing Sui, Qingbao Yu, Jiayu Chen, Barbara Stuart, Rachel L Loewy, Vince D Calhoun, Daniel H Mathalon
Although individuals at clinical high risk (CHR) for psychosis exhibit a psychosis-risk syndrome involving attenuated forms of the positive symptoms typical of schizophrenia (SZ), it remains unclear whether their resting-state brain intrinsic functional networks (INs) show attenuated or qualitatively distinct patterns of functional dysconnectivity relative to SZ patients. Based on resting-state functional magnetic imaging data from 70 healthy controls (HCs), 53 CHR individuals (among which 41 subjects were antipsychotic medication-naive), and 58 early illness SZ (ESZ) patients (among which 53 patients took antipsychotic medication) within five years of illness onset, we estimated subject-specific INs using a novel group information guided independent component analysis (GIG-ICA) and investigated group differences in INs...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29156426/theory-of-mind-and-schizophrenia-in-young-and-middle-aged-patients-influence-of-executive-functions
#7
Marta Croca, Aurèlie Lagodka, Remi Gadel, Marie Chantal Bourdel, Narjes Bendjemaa, Raphael Gaillard, Jean Pierre Olié, M Champagne-Lavau, Marie Odile Krebs, Isabelle Amado
Theory of Mind (ToM) is compromised in schizophrenia, and responsible for social disability. We aim to study the correlation between ToM deficits and Executive Functions (EF), using the Faux Pas Test (FPT) for ToM evaluation, Behavioral Assessment of the Dysexecutive Syndrome (BADS) and Wisconsin Card Sorting Test (WCST) for EF assessment. Two groups of patients with schizophrenia were included: 22 young (18-35 years-old) and 18 middle-aged (>50 years-old) Patients, compared to age-matched Controls. We found worst FPT performances in both groups of patients, but with a more generalized pattern of dysfunction in the middle-aged patient group...
November 17, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29143717/white-matter-abnormalities-in-22q11-2-deletion-syndrome-patients-showing-cognitive-decline
#8
Jasper Olivier Nuninga, Marc Marijn Bohlken, Sanne Koops, Ania M Fiksinski, René C W Mandl, Elemi J Breetvelt, Sasja N Duijff, René S Kahn, Iris E C Sommer, Jacob A S Vorstman
BACKGROUND: Decline in cognitive functioning precedes the first psychotic episode in the course of schizophrenia and is considered a hallmark symptom of the disorder. Given the low incidence of schizophrenia, it remains a challenge to investigate whether cognitive decline coincides with disease-related changes in brain structure, such as white matter abnormalities. The 22q11.2 deletion syndrome (22q11DS) is an appealing model in this context, as 25% of patients develop psychosis. Furthermore, we recently showed that cognitive decline also precedes the onset of psychosis in individuals with 22q11DS...
November 16, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/29128195/-what-support-of-young-presenting-a-first-psychotic-episode-when-schooling-is-being-challenged
#9
M-N Vacheron, H Veyrat-Masson, E Wehbe
Psychiatric disorders (more specifically mood disorders and psychosis) represent the 1st cause of disability among young people. Unemployment rate between 75 to 95% for the person with schizophrenia. It is correlated to poor social integration and bad economic status, worse symptomatology loss of autonomy as well as global bad functioning. It is responsible of more than half of the overall cost of psychosis. The onset of most of psychiatric disorders occur between the age of 25 and 35 years old, a critical time in young adult life when they should build their professional as well as social future...
November 8, 2017: L'Encéphale
https://www.readbyqxmd.com/read/29121595/from-the-psychosis-prodrome-to-the-first-episode-of-psychosis-no-evidence-of-a-cognitive-decline
#10
Ricardo E Carrión, Deborah J Walder, Andrea M Auther, Danielle McLaughlin, Heather O Zyla, Steven Adelsheim, Roderick Calkins, Cameron S Carter, Bentson McFarland, Ryan Melton, Tara Niendam, J Daniel Ragland, Tamara G Sale, Stephan F Taylor, William R McFarlane, Barbara A Cornblatt
Cognitive deficits have an important role in the neurodevelopment of schizophrenia and other psychotic disorders. However, there is a continuing debate as to whether cognitive impairments in the psychosis prodrome are stable predictors of eventual psychosis or undergo a decline due to the onset of psychosis. In the present study, to determine how cognition changes as illness emerges, we examined baseline neurocognitive performance in a large sample of helping-seeking youth ranging in clinical state from low-risk for psychosis through individuals at clinical high-risk (CHR) for illness to early first-episode patients (EFEP)...
January 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29116582/late-onset-first-episode-psychosis-emerging-as-delusional-misidentification-of-familiar-sacred-places-during-a-holy-pilgrimage-a-case-report-and-literature-review
#11
Mahmoud A Awara, Hamdy F Moselhy, Manal O Elnenaei
BACKGROUND: The delusional misidentification syndromes (DMS) include a myriad of discrete but related syndromes, which have wide spectrum anomalies of familiarity. Several misidentification syndromes have been described in the psychiatric literature, the most common of these delusions are: the Capgras syndrome; the Fregoli syndrome; the syndrome of inter-metamorphosis; reduplicative paramnesia; and environmental reduplication. CASE PRESENTATION: The reported case highlights the emergence of late onset first episode psychosis in a Middle Eastern 65-year-old female who has no previous psychiatric history...
November 7, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/29106788/early-onset-inguinal-hernia-as-risk-factor-for-schizophrenia-or-related-psychosis-a-nationwide-register-based-cohort-study
#12
(no author information available yet)
OBJECTIVES: In an earlier interview study, we found that more men with familial schizophrenia had undergone inguinal hernia operation, than men with sporadic schizophrenia. However, there are no other studies published specifically on inguinal hernia and schizophrenia. Therefore, the aim of this study was to carry out a Swedish register-based cohort study on the association between inguinal hernia and schizophrenia or related psychosis. METHODS: Data from the Total Population- and Medical Birth-Registers were used to create a cohort of all individuals born in Sweden 1987-1999 (n=1 406 168)...
October 6, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/29100974/the-interaction-of-nos1ap-disc1-daoa-and-gsk3b-confers-susceptibility-of-early-onset-schizophrenia-in-chinese-han-population
#13
Guoqin Hu, Chengqing Yang, Lei Zhao, Yong Fan, Qinyu Lv, Jing Zhao, Minghuan Zhu, Xiangqing Guo, Chenxi Bao, Ahong Xu, Yong Jie, Yaqing Jiang, Chen Zhang, Shunying Yu, Zuowei Wang, Zezhi Li, Zhenghui Yi
Although many major breakthrough had identificated potential susceptibility genes for schizophrenia, the aetiology of schizophrenia is still unknown. In the present study, we focused on the N-methyl-Daspartate receptors related genes nitric oxide synthase 1 adaptor gene (NOS1AP), disrupted in schizophrenia 1 gene (DISC1), d-amino acid oxidase activator gene (DAOA), and glycogen synthase kinase 3-beta gene (GSK3B). A family-based genetic association study (459 Han Chinese subjects in 153 nuclear families) using 3 single nucleotide polymorphisms in NOS1AP, 2 in DISC1, 1 in DAOA and 1 in GSK3B was conducted...
October 31, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29096386/cannabis-induced-psychosis-and-subsequent-psychiatric-disorders
#14
Dharav Shah, Prabhat Chand, Mrunal Bandawar, Vivek Benegal, Pratima Murthy
INTRODUCTION: Long term change in diagnosis of patients having Cannabis induced psychosis (CIP) at the index evaluation is well recognised. Some patients are known to achieve complete remission while others go on to develop independent schizophrenia or mood disorders. AIMS: To study the long-term course of CIP and factors influencing it. METHOD: Patients diagnosed as CIP (ICD 10: F12.5), admitted at NIMHANS, a tertiary neuropsychiatry centre at Bangalore, over the past 10 years were identified from medical records...
October 16, 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29096206/risk-factors-in-early-and-late-onset-schizophrenia
#15
Laura Chen, Ajit Selvendra, Anne Stewart, David Castle
BACKGROUND: This study looks at key risk factors in patients with schizophrenia to identify trends according to age of onset, comparing presentations prior to 26years (youth onset), between 26 and 40years (middle onset), and after 40years of age (late onset). METHODS: The early psychosis program at St Vincent's Hospital Melbourne treats patients presenting in the early stages of psychosis between 16 and 65years of age. A database was developed to capture key risk factors in all patients with an eventual diagnosis of schizophrenia (n=225)...
September 20, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29092669/the-clinical-impact-of-a-positive-family-history-of-psychosis-or-mental-illness-in-psychotic-and-non-psychotic-mentally-ill-adolescents
#16
Saeeda Paruk, Khatija Jhazbhay, Keshika Singh, Benn Sartorius, Jonathan K Burns
BACKGROUND: A family history of psychosis is associated with negative clinical characteristics of psychosis. AIM: We aimed to determine the relationship between a family history (in first-degree relatives) of psychosis (FHP) or of any mental illness (FHM), and the clinical features (including cannabis use) of first episode early onset psychosis (EOP). METHOD: Forty-five adolescents with first episode EOP presenting to psychiatric services were assessed by clinical interview with the following tools: socio-demographic questionnaire, Positive and Negative Syndrome Scale (PANSS), Symptom Onset in Schizophrenia (SOS) inventory, and the World Health Organisation's (WHO) Alcohol, Smoking, and Substance Involvement Screening Test (ASSIST) for cannabis misuse...
November 2, 2017: Journal of Child and Adolescent Mental Health
https://www.readbyqxmd.com/read/29083450/the-potential-of-cannabidiol-treatment-for-cannabis-users-with-recent-onset-psychosis
#17
Britta Hahn
A major factor associated with poor prognostic outcome after a first psychotic break is cannabis misuse, which is prevalent in schizophrenia and particularly common in individuals with recent-onset psychosis. Behavioral interventions aimed at reducing cannabis use have been unsuccessful in this population. Cannabidiol (CBD) is a phytocannabinoid found in cannabis, although at low concentrations in modern-day strains. CBD has a broad pharmacological profile, but contrary to ∆9-tetrahydrocannabinol (THC), CBD does not activate CB1 or CB2 receptors and has at most subtle subjective effects...
August 11, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29072182/social-challenges-of-contemporary-psychiatry
#18
N Bouras
Psychiatry and society are interrelated and the biopsychosocial model continues to dominate the clinical psychiatric practice. Some doubts have been expressed in recent years about the value and the wide acceptance of the biopsychosocial model. Ghaemi (2009)1 considers it to be anti-humanistic and advocates the use of less eclectic, less generic, and less vague alternatives. The fundamental changes that have been witnessed in our times across the spectrum of biology, psychology and sociology have made necessary that a conceptual clarity should prevail...
July 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/29070492/vitamin-d-deficiency-infertility-and-neurodevelopmental-diseases-attention-deficit-hyperactivity-disorder-autism-and-schizophrenia
#19
Michael J Berridge
The process of development depends on a progressive sequence of events that are carefully orchestrated by a number of signalling systems. Alteration in these signalling events results in infertility and neurodevelopmental diseases such as attention deficit hyperactivity disorder (ADHD), autism spectrum disorders (ASD) and schizophrenia. A prominent role throughout development beginning at fertilization and continuing through early development, implantation and organ differentiation such as heart and brain development is regulated by Ca(2+) signalling...
October 25, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29045744/developmental-differences-between-schizophrenia-and-bipolar-disorder
#20
Mara Parellada, Sandra Gomez-Vallejo, Monica Burdeus, Celso Arango
Ample evidence supports a neurodevelopmental origin in some cases of schizophrenia (SZ). More inconsistent information is available for bipolar disorder (BD). We herein review studies with a focus on premorbid (adjustment and functionality) and early developmental milestones that include both SZ and BD patients. A search was performed in the PubMed electronic database, retrieving 619 abstracts; 30 were ultimately included in this systematic review. Eight prospective cohorts, 15 retrospective studies, and 7 studies based on national registries...
October 21, 2017: Schizophrenia Bulletin
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