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https://www.readbyqxmd.com/read/29685420/association-of-maternal-exposure-to-terror-attacks-during-pregnancy-and-the-risk-of-schizophrenia-in-the-offspring-a-population-based-study
#1
Yael Weinstein, Itzhak Levav, Marc Gelkopf, David Roe, Rinat Yoffe, Inna Pugachova, Stephen Z Levine
This study tested the hypothesis that maternal exposure to terror attacks during pregnancy is associated with the risk of schizophrenia in the offspring. A population-based study was conducted of Israeli children born between 1975 and 1995 and that were registered in the Ministry of Interior and followed up in the Ministry of Health from birth to 2015 for the risk of schizophrenia (N = 201,048). The association between maternal exposure to terror attacks during pregnancy and the risk of schizophrenia in the offspring was quantified with relative risks (RR) and their 95% confidence intervals (CI) fitting Cox regression models unadjusted and adjusted for confounders...
April 20, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29607791/attention-deficit-hyperactivity-disorder-and-risk-for-psychiatric-and-neurodevelopmental-disorders-in-siblings
#2
Elina Jokiranta-Olkoniemi, Keely Cheslack-Postava, Petteri Joelsson, Auli Suominen, Alan S Brown, Andre Sourander
BACKGROUND: Probands with attention-deficit/hyperactivity disorder (ADHD) are at increased risk for several psychiatric and neurodevelopmental disorders. The risk of these disorders among the siblings of probands has not been thoroughly assessed in a population-based cohort. METHODS: Every child born in Finland in 1991-2005 and diagnosed with ADHD in 1995-2011 were identified from national registers. Each case was matched with four controls on sex, place, and date of birth...
April 2, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29603866/genome-wide-analysis-of-adolescent-psychotic-like-experiences-shows-genetic-overlap-with-psychiatric-disorders
#3
Oliver Pain, Frank Dudbridge, Alastair G Cardno, Daniel Freeman, Yi Lu, Sebastian Lundstrom, Paul Lichtenstein, Angelica Ronald
This study aimed to test for overlap in genetic influences between psychotic-like experience traits shown by adolescents in the community, and clinically-recognized psychiatric disorders in adulthood, specifically schizophrenia, bipolar disorder, and major depression. The full spectra of psychotic-like experience domains, both in terms of their severity and type (positive, cognitive, and negative), were assessed using self- and parent-ratings in three European community samples aged 15-19 years (Final N incl...
March 31, 2018: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/29534225/childhood-and-parental-asthma-future-risk-of-bipolar-disorder-and-schizophrenia-spectrum-disorders-a-population-based-cohort-study
#4
Qiong Wu, Christina Dalman, Håkan Karlsson, Glyn Lewis, David P J Osborn, Renee Gardner, Joseph F Hayes
Background: Mounting evidence implicates early life and prenatal immune disturbances in the etiology of severe mental illnesses. Asthma is a common illness associated with chronic aberrant immune responses. We aimed to determine if asthma in childhood and parents is associated with bipolar and schizophrenia spectrum disorders. Methods: A cohort study including all children born in Sweden 1973-1995 (N > 2 million) assessing associations between childhood hospitalization for asthma, parental asthma during and pre-pregnancy, and subsequent bipolar and schizophrenia spectrum disorders...
March 9, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29520640/obsessive-compulsive-symptoms-in-psychotic-disorders-longitudinal-associations-of-symptom-clusters-on-between-and-within-subject-levels
#5
Frederike Schirmbeck, Max Konijn, Vera Hoetjes, Mathias Zink, Lieuwe de Haan
Obsessive-compulsive symptoms (OCS) are frequently reported in patients with schizophrenia and have been associated with subjective distress and higher impairment. Recent studies suggest fluctuation in co-occurring OCS and associations with the course of psychotic symptoms. Current evidence is limited by few studies with long assessments intervals and a sole focus on between-subject comparisons. The aim of this study was to specifically investigate co-variation of symptom domains over time within individuals...
March 8, 2018: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/29499968/temporal-lobe-thickness-and-verbal-memory-in-first-degree-relatives-of-individuals-with-schizophrenia
#6
Vindia G Fernandez, Robert Asarnow, Katherine L Narr, Kenneth L Subotnik, Heidi Kuppinger, David Fogelson, Keith H Nuechterlein
Cortical thinning in frontal and temporal regions has been reported in individuals diagnosed with schizophrenia and, less consistently, among their unaffected first-degree relatives. Likewise, first-degree relatives demonstrate attenuated differences in neurocognitive performance relative to healthy controls, indicating that neurocognitive performance may be an important endophenotype of the disorder. Less is known about how cortical thickness relates to neurocognitive performance in these individuals. Given the robust nature of temporal structural abnormalities in schizophrenia, this study aimed to identify how temporal lobe cortical thickness might relate to verbal memory in first-degree relatives...
February 27, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29496125/reduced-functional-brain-activation-and-connectivity-during-a-working-memory-task-in-childhood-onset-schizophrenia
#7
Frances F Loeb, Xueping Zhou, Kirsten E S Craddock, Lorie Shora, Diane D Broadnax, Peter Gochman, Liv S Clasen, Francois M Lalonde, Rebecca A Berman, Karen F Berman, Judith L Rapoport, Siyuan Liu
OBJECTIVE: Working memory (WM) deficits are consistently reported in schizophrenia and are related to poor functional outcomes. Functional magnetic resonance imaging studies of adult-onset schizophrenia have reported decreased functional activations and connectivity in the WM network, but no prior functional magnetic resonance imaging study has examined WM in childhood-onset schizophrenia (COS). The aim of this study was to examine the neural correlates of WM in COS. METHOD: Adult patients with COS (n = 32, 21...
March 2018: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/29496120/adults-with-childhood-onset-schizophrenia-and-their-siblings-do-age-of-onset-and-familiality-affect-performance-on-and-the-neural-signature-of-working-memory-tasks
#8
EDITORIAL
Jean A Frazier
No abstract text is available yet for this article.
March 2018: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/29486958/whole-genome-sequencing-of-91-multiplex-schizophrenia-families-reveals-increased-burden-of-rare-exonic-copy-number-variation-in-schizophrenia-probands-and-genetic-heterogeneity
#9
Fayeza F Khan, Phillip E Melton, Nina S McCarthy, Bharti Morar, John Blangero, Eric K Moses, Assen Jablensky
The importance of genomic copy number variants (CNVs) has long been recognized in the etiology of neurodevelopmental diseases. We report here the results from the CNV analysis of whole-genome sequences from 91 multiplex schizophrenia families. Employing four algorithms (CNVnator, Cn.mops, DELLY and LUMPY) to identify CNVs, we find 1231 rare deletions and 287 rare duplications in 300 individuals (77 with schizophrenia (SZ), 32 with schizoaffective disorder (SAD), 82 with another neuropsychiatric diagnosis and 109 unaffected)...
February 24, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29483659/at-risk-individuals-display-altered-brain-activity-following-stress
#10
J M C van Leeuwen, M Vink, G Fernández, E J Hermans, M Joëls, R S Kahn, C H Vinkers
Stress is a major risk factor for almost all psychiatric disorders, however, the underlying neurobiological mechanisms remain largely elusive. In healthy individuals, a successful stress response involves an adequate neuronal adaptation to a changing environment. This adaptive response may be dysfunctional in vulnerable individuals, potentially contributing to the development of psychopathology. In the current study, we investigated brain responses to emotional stimuli following stress in healthy controls and at-risk individuals...
February 26, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29475103/increased-delayed-reward-during-intertemporal-decision-making-in-schizophrenic-patients-and-their-unaffected-siblings
#11
Lu Wang, Shengchun Jin, Kongliang He, Xingui Chen, Gongjun Ji, Xiaomeng Bai, Guixian Xiao, Huijuan Ma, Kai Wang
Intertemporal choices are decisions with consequences in multiple time periods and constitute a significant part of social cognition. The shared neuropathological characteristics of patients with schizophrenia and their siblings might express intermediate phenotypes in behavior that could be used to further characterize the illness. Schizophrenic patients, unaffected siblings, and healthy controls underwent a computerized version of the "Intertemporal Choice Task". All participants could choose between sooner-smaller (SS) and later-larger (LL) options in now-trials and in not-now-trials...
April 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29465570/transmissibility-and-familiality-of-neo-personality-dimensions-in-a-sample-of-korean-families-with-schizophrenia
#12
Soo Yeon Kim, Byung Dae Lee, Je Min Park, Young Min Lee, Eunsoo Moon, Hee Jeong Jeong, Young In Chung
Categorical syndromes such as schizophrenia may represent complexes of many continuous psychological structural phenotypes along several dimensions of personality development/degeneration. The present study investigated the heritability and familiality of Neuroticism-Extraversion-Openness to experience (NEO) personality dimensions in Korean families with schizophrenic linkage disequilibrium (LD).We have recruited 204 probands (with schizophrenia) with their parents and siblings whenever possible. We have used NEO questionnaires for measuring personality and symptomatic dimensions...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29415119/schizophrenia-polygenic-risk-score-predicts-mnemonic-hippocampal-activity
#13
Qiang Chen, Gianluca Ursini, Adrienne L Romer, Annchen R Knodt, Karleigh Mezeivtch, Ena Xiao, Giulio Pergola, Giuseppe Blasi, Richard E Straub, Joseph H Callicott, Karen F Berman, Ahmad R Hariri, Alessandro Bertolino, Venkata S Mattay, Daniel R Weinberger
The use of polygenic risk scores has become a practical translational approach to investigating the complex genetic architecture of schizophrenia, but the link between polygenic risk scores and pathophysiological components of this disorder has been the subject of limited research. We investigated in healthy volunteers whether schizophrenia polygenic risk score predicts hippocampal activity during simple memory encoding, which has been proposed as a risk-associated intermediate phenotype of schizophrenia. We analysed the relationship between polygenic risk scores and hippocampal activity in a discovery sample of 191 unrelated healthy volunteers from the USA and in two independent replication samples of 76 and 137 healthy unrelated participants from Europe and the USA, respectively...
April 1, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29349038/abnormal-neural-hierarchy-in-processing-of-verbal-information-in-patients-with-schizophrenia
#14
Yulia Lerner, Maya Bleich-Cohen, Shimrit Solnik-Knirsh, Galit Yogev-Seligmann, Tamir Eisenstein, Waheed Madah, Alon Shamir, Talma Hendler, Ilana Kremer
Previous research indicates abnormal comprehension of verbal information in patients with schizophrenia. Yet the neural mechanism underlying the breakdown of verbal information processing in schizophrenia is poorly understood. Imaging studies in healthy populations have shown a network of brain areas involved in hierarchical processing of verbal information over time. Here, we identified critical aspects of this hierarchy, examining patients with schizophrenia. Using functional magnetic resonance imaging, we examined various levels of information comprehension elicited by naturally presented verbal stimuli; from a set of randomly shuffled words to an intact story...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29313167/prenatal-exposure-to-chernobyl-fallout-in-norway-neurological-and-developmental-outcomes-in-a-25-year-follow-up
#15
Rolv Terje Lie, Dag Moster, Per Strand, Allen James Wilcox
Ionizing radiation at high doses early in life may cause neurodevelopmental problems. Possible effects of lower doses are, however, controversial. We use carefully collected exposure data for Norway following the Chernobyl accident in April 1986 combined with population-based registries to assess long-term effects of fetal exposure on neurodevelopmental outcomes. Radiation doses were estimated for each Norwegian municipality for each calendar month from May 1986 to April 1989. We established a cohort of all Norwegian pregnancies during the three-year period of radiation measurement and compared them with appropriate unexposed groups...
December 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29310911/attenuated-resting-state-functional-connectivity-in-patients-with-childhood-and-adult-onset-schizophrenia
#16
Rebecca E Watsky, Stephen J Gotts, Rebecca A Berman, Harrison M McAdams, Xueping Zhou, Dede Greenstein, Francois M Lalonde, Peter Gochman, Liv S Clasen, Lorie Shora, Anna E Ordóñez, Nitin Gogtay, Alex Martin, Deanna M Barch, Judith L Rapoport, Siyuan Liu
BACKGROUND: Childhood-onset schizophrenia (COS) is a rare, severe form of the adult-onset disorder (AOS). Our previous resting-state fMRI study identified attenuated functional connectivity in COS compared with controls. Here, we ask whether COS and AOS patients and their siblings exhibit similar abnormalities of functional connectivity. METHODS: A whole-brain, data-driven approach was used to assess resting-state functional connectivity differences in COS (patients/siblings/controls, n: 26/28/33) and AOS (n: 19/28/30)...
January 6, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29306964/higher-schizotypy-predicts-better-metabolic-profile-in-unaffected-siblings-of-patients-with-schizophrenia
#17
E Cem Atbasoglu, Guvem Gumus-Akay, Sinan Guloksuz, Meram Can Saka, Alp Ucok, Koksal Alptekin, Sevim Gullu, Jim van Os
RATIONALE: Type 2 diabetes (T2D) is more frequent in schizophrenia (Sz) than in the general population. This association is partly accounted for by shared susceptibility genetic variants. OBJECTIVE: We tested the hypotheses that a genetic predisposition to Sz would be associated with higher likelihood of insulin resistance (IR), and that IR would be predicted by subthreshold psychosis phenotypes. METHODS: Unaffected siblings of Sz patients (n = 101) were compared with a nonclinical sample (n = 305) in terms of IR, schizotypy (SzTy), and a behavioural experiment of "jumping to conclusions"...
April 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29302076/candidate-cspg4-mutations-and-induced-pluripotent-stem-cell-modeling-implicate-oligodendrocyte-progenitor-cell-dysfunction-in-familial-schizophrenia
#18
Femke M de Vrij, Christian G Bouwkamp, Nilhan Gunhanlar, Guy Shpak, Bas Lendemeijer, Maarouf Baghdadi, Shreekara Gopalakrishna, Mehrnaz Ghazvini, Tracy M Li, Marialuisa Quadri, Simone Olgiati, Guido J Breedveld, Michiel Coesmans, Edwin Mientjes, Ton de Wit, Frans W Verheijen, H Berna Beverloo, Dan Cohen, Rob M Kok, P Roberto Bakker, Aviva Nijburg, Annet T Spijker, P M Judith Haffmans, Erik Hoencamp, Veerle Bergink, Jacob A Vorstman, Timothy Wu, Loes M Olde Loohuis, Najaf Amin, Carolyn D Langen, Albert Hofman, Witte J Hoogendijk, Cornelia M van Duijn, M Arfan Ikram, Meike W Vernooij, Henning Tiemeier, André G Uitterlinden, Ype Elgersma, Ben Distel, Joost Gribnau, Tonya White, Vincenzo Bonifati, Steven A Kushner
Schizophrenia is highly heritable, yet its underlying pathophysiology remains largely unknown. Among the most well-replicated findings in neurobiological studies of schizophrenia are deficits in myelination and white matter integrity; however, direct etiological genetic and cellular evidence has thus far been lacking. Here, we implement a family-based approach for genetic discovery in schizophrenia combined with functional analysis using induced pluripotent stem cells (iPSCs). We observed familial segregation of two rare missense mutations in Chondroitin Sulfate Proteoglycan 4 (CSPG4) (c...
January 4, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29275842/risk-of-hospitalization-for-psychiatric-disorders-among-siblings-and-parents-of-probands-with-psychotic-or-affective-disorders-a-population-based-study
#19
Dina Popovic, Shira Goldberg, Daphna Fenchel, Or Frenkel, Abraham Reichenberg, Rinat Yoffe, Michael Davidson, Mark Weiser
Relatives of people diagnosed with psychotic and affective disorders have a higher risk of developing psychiatric disorders compared to the general population. This study examined the risk of hospitalization for psychiatric disorders among siblings and parents of patients affected with major psychiatric disorders. In this large population-based case-control study, 17,895 siblings and parents of 7671 hospitalized subjects with a diagnosis of narrowly defined schizophrenia (SZ), broadly defined SZ, schizoaffective disorder (SAD), bipolar disorder (BD) or unipolar depression (UD) were identified from the Israeli Psychiatric Hospitalization Registry and compared to 71,580 age and gender-matched controls from the Israeli Population Registry...
March 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29216608/short-term-effects-of-brief-need-based-psychoeducation-on-knowledge-self-stigma-and-burden-among-siblings-of-persons-with-schizophrenia-a-prospective-controlled-trial
#20
Anekal C Amaresha, Sunil Vasu Kalmady, Boban Joseph, Sri Mahavir Agarwal, Janardhanan C Narayanaswamy, Ganesan Venkatasubramanian, Daliboina Muralidhar, Doddaballapura K Subbakrishna
Siblings of persons with schizophrenia are important in providing long-term social support to the patients. Interventions addressing their needs are very sparse. Hence, this study aimed at testing the short-term effects of brief need based psychoeducation on knowledge, self-stigma, and burden among siblings of persons with schizophrenia. In this prospective controlled open label trial, 80 siblings of persons with schizophrenia were allocated in equal numbers to the brief need based psychoeducation group and the treatment-as-usual group...
February 2018: Asian Journal of Psychiatry
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