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https://www.readbyqxmd.com/read/29678279/the-psychiatric-consequences-of-cannabinoids
#1
Joao P De Aquino, Mohamed Sherif, Rajiv Radhakrishnan, John D Cahill, Mohini Ranganathan, Deepak C D'Souza
With rising rates of cannabis use in the general population and an increasing number of US states legalizing both recreational and medical cannabis use, it is important to be informed about the adverse consequences of cannabinoids. This Commentary provides an overview of the psychiatric effects of plant-based and synthetic cannabinoids, differentiating acute effects from effects associated with persistent use. Cannabinoids produce multiphasic and dose-dependent effects on anxiety, mood, and perception, in addition to impairing cognition and psychomotor function...
April 17, 2018: Clinical Therapeutics
https://www.readbyqxmd.com/read/29677619/associations-of-early-childhood-adversities-with-mental-disorders-psychological-functioning-and-suitability-for-psychotherapy-in-adulthood
#2
Erkki Heinonen, Paul Knekt, Tommi Härkänen, Esa Virtala, Olavi Lindfors
Childhood adversities frequently precede adulthood depression and anxiety. Yet, how they impact needed treatment duration, type or focus in these common disorders, is unclear. For developing more individualized and precise interventions, we investigated whether specific early adversities associate with patients' distinct psychiatric problems, psychological vulnerabilities, and suitability for psychotherapy. A total of 221 depressed and anxious adult outpatients (excluding psychotic, severe personality, bipolar, and substance abuse disorders) referred from community, student, occupational, and private healthcare services filled the Childhood Family Atmosphere Questionnaire (CFAQ)...
April 4, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29675994/psychotic-like-experiences-in-pre-adolescence-what-precedes-the-antecedent-symptoms-of-severe-mental-illness
#3
K Bolhuis, M E Koopman-Verhoeff, L M E Blanken, D Cibrev, V W V Jaddoe, F C Verhulst, M H J Hillegers, S A Kushner, H Tiemeier
OBJECTIVE: Adolescent psychotic-like experiences predict the onset of psychosis, but also predict subsequent non-psychotic disorders. Therefore, it is crucial to better understand the aetiology of psychotic-like experiences. This study examined whether (a) child emotional and behavioural problems at 3 and 6 years, or (b) childhood adversities were associated with psychotic-like experiences at age 10 years. METHOD: This prospective study was embedded in the Generation R Study; 3984 children (mean age 10 years) completed a psychotic-like experiences questionnaire...
April 19, 2018: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/29674982/delusional-themes-across-affective-and-non-affective-psychoses
#4
Angelo Picardi, Laura Fonzi, Mauro Pallagrosi, Antonella Gigantesco, Massimo Biondi
The current debate about the diagnostic significance of delusion revolves around two positions. The neurocognitive position conceives delusion as a non-specific, though polymorphic, symptom. The psychopathological position views features of delusion such as content and structure as having meaningful connections with diagnostic entities. This study aims at contributing to this debate by examining the association between delusional themes and diagnosis in a sample of 830 adult psychotic patients. All diagnoses were made by experienced psychiatrists according to DSM-IV or ICD-10 criteria, and in 348 patients were established with the SCID-I...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29672091/resting-state-connectivity-dynamics-in-individuals-at-risk-for-psychosis
#5
Andrea Pelletier-Baldelli, Jessica R Andrews-Hanna, Vijay A Mittal
Clarifying dynamic fluctuations in resting-state connectivity in individuals at risk for psychosis (termed clinical high risk [CHR]) may inform understanding of psychotic disorders, such as schizophrenia, which have been associated with dysconnectivity and aberrant salience processing. Dynamic functional connectivity (DFC) investigations provide insight into how neural networks exchange information over time. Currently, there are no published DFC studies involving CHR individuals. This is notable, because understanding how networks may come together and disassociate over time could lend insight into the neural communication that underlies psychosis development and symptomatology...
April 2018: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/29671935/a-data-driven-investigation-of-relationships-between-bipolar-psychotic-symptoms-and-schizophrenia-genome-wide-significant-genetic-loci
#6
Ganna Leonenko, Arianna Di Florio, Judith Allardyce, Liz Forty, Sarah Knott, Lisa Jones, Katherine Gordon-Smith, Michael J Owen, Ian Jones, James Walters, Nick Craddock, Michael C O'Donovan, Valentina Escott-Price
The etiologies of bipolar disorder (BD) and schizophrenia include a large number of common risk alleles, many of which are shared across the disorders. BD is clinically heterogeneous and it has been postulated that the pattern of symptoms is in part determined by the particular risk alleles carried, and in particular, that risk alleles also confer liability to schizophrenia influence psychotic symptoms in those with BD. To investigate links between psychotic symptoms in BD and schizophrenia risk alleles we employed a data-driven approach in a genotyped and deeply phenotyped sample of subjects with BD...
April 19, 2018: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/29670504/clozapine-induced-cardiovascular-side-effects-and-autonomic-dysfunction-a-systematic-review
#7
Jessica W Y Yuen, David D Kim, Ric M Procyshyn, Randall F White, William G Honer, Alasdair M Barr
Background: Clozapine is the antipsychotic of choice for treatment-resistant schizophrenia and has minimal risk for extrapyramidal symptoms. Therapeutic benefits, however, are accompanied by a myriad of cardiometabolic side-effects. The specific reasons for clozapine's high propensity to cause adverse cardiometabolic events remain unknown, but it is believed that autonomic dysfunction may play a role in many of these. Objective: This systematic review summarizes the literature on autonomic dysfunction and related cardiovascular side effects associated with clozapine treatment...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29664050/association-between-perceived-stressfulness-of-stressful-life-events-and-the-suicidal-risk-in-chinese-patients-with-major-depressive-disorder
#8
Jing-Yu Lin, Yu Huang, Yun-Ai Su, Xin Yu, Xiao-Zhen Lyu, Qi Liu, Tian-Mei Si
Background: Patients with major depressive disorder (MDD) usually have high risk of suicidality. Few studies have investigated the effects of stressful life events (SLEs) on the risk of suicide in Chinese patients who have developed MDD. This study aimed to investigate the impact of SLEs on suicidal risk in Chinese patients with MDD. Methods: In total, 1029 patients with MDD were included from nine psychiatric hospitals to evaluate the impact of SLEs on suicidal risk...
April 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29663328/gamma-aminobutyric-acid-agonists-for-antipsychotic-induced-tardive-dyskinesia
#9
REVIEW
Samer Alabed, Youssef Latifeh, Husam Aldeen Mohammad, Hanna Bergman
BACKGROUND: Chronic antipsychotic drug treatment may cause tardive dyskinesia (TD), a long-term movement disorder. Gamma-aminobutyric acid (GABA) agonist drugs, which have intense sedative properties and may exacerbate psychotic symptoms, have been used to treat TD. OBJECTIVES: 1. Primary objectiveThe primary objective was to determine whether using non-benzodiazepine GABA agonist drugs for at least six weeks was clinically effective for the treatment of antipsychotic-induced TD in people with schizophrenia, schizoaffective disorder or other chronic mental illnesses...
April 17, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29663191/older-adults-with-autism-spectrum-disorders-in-sweden-a-register-study-of-diagnoses-psychiatric-care-utilization-and-psychotropic-medication-of-601-individuals
#10
Lena Nylander, Anna Axmon, Petra Björne, Gerd Ahlström, Christopher Gillberg
In a Swedish sample of persons eligible for disability services and aged 55 years or older in 2012, persons (n = 601) with autism spectrum disorder diagnoses registered in specialist care were identified. Register data concerning diagnoses of other psychiatric disorders, psychiatric care, and psychiatric medication were reviewed. More than 60% had been in contact with psychiatric care. The majority had no intellectual disability (ID) diagnosis recorded during the study period. Apart from ID, affective disorders, anxiety and psychotic disorders were most commonly registered; alcohol/substance abuse disorders were uncommon...
April 16, 2018: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29661027/social-determinants-of-health-and-preclinical-glycemic-control-in-newly-diagnosed-first-episode-psychosis-patients
#11
Franz Veru-Lesmes, Aldanie Rho, Suzanne King, Ridha Joober, Marita Pruessner, Ashok Malla, Srividya N Iyer
BACKGROUND: The abnormally high incidence of disorders of glucose metabolism (DGM) in psychotic-spectrum disorders (PSD) has often been attributed to the side effects of antipsychotics and unhealthy lifestyles. The influence of social determinants of health has been largely ignored, despite ample evidence linking social adversity with both PSD and DGM. The aim of this study is to examine the influence of well-established social determinants of health on preclinical levels of glycated hemoglobin (HbA1c) in a sample of first-episode psychosis (FEP) patients...
January 1, 2018: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/29656729/-false-positive-self-reported-psychotic-experiences-in-the-general-population-an-investigation-of-outcome-predictive-factors-and-clinical-relevance
#12
Y van der Steen, I Myin-Germeys, M van Nierop, M Ten Have, R de Graaf, S van Dorsselaer, J van Os, R van Winkel
AIMS: Self-reported psychotic experiences (SRPE) by individuals from the general population are often unconfirmed by clinical interview and referred to as 'false-positive' (FP) SRPE. FP SRPE have been suggested to represent the mildest form of risk along the extended psychosis continuum. However, little is known about their (clinical) outcome and evolution over time. Aims of this study were to prospectively examine, in individuals with FP SRPE, (1) the prevalence of remission, persistence and transition to validated PE at 3-year follow-up; (2) potential baseline psychopathological and psychosocial predictors of persistence of FP SRPE and transition to validated PE; and (3) whether those with persistent FP SRPE and validated PE already differed on psychopathology and psychosocial factors at baseline...
April 16, 2018: Epidemiology and Psychiatric Sciences
https://www.readbyqxmd.com/read/29656708/outcomes-of-a-peer-mentor-intervention-for-persons-with-recurrent-psychiatric-hospitalization
#13
Maria J O'Connell, William H Sledge, Martha Staeheli, David Sells, Mark Costa, Melissa Wieland, Larry Davidson
OBJECTIVE: This article presents findings from a randomized controlled trial of a peer support mentorship intervention designed for individuals with serious mental illness and frequent, recurrent psychiatric hospitalizations. METHODS: Seventy-six individuals who were diagnosed as having a major psychotic or mood disorder and who had at least two psychiatric hospitalizations or more than three emergency department visits within the 18 months prior to the index hospitalization participated in this trial...
April 16, 2018: Psychiatric Services: a Journal of the American Psychiatric Association
https://www.readbyqxmd.com/read/29656029/gamma-band-oscillations-in-the-early-phase-of-psychosis-a-systematic-review
#14
REVIEW
Thomas J Reilly, Judith F Nottage, Erich Studerus, Grazia Rutigliano, Andrea I De Micheli, Paolo Fusar-Poli, Philip McGuire
Abnormal gamma oscillations, measured by electroencephalography (EEG), have been associated with chronic psychotic disorders, but their prevalence in the early phase of psychosis is less clear. We sought to address this issues by systematically reviewing the relevant literature. We searched for EEG studies of gamma band oscillations in subjects at high risk for psychosis and in patients with first episode psychosis. The following measures of gamma oscillations were extracted: resting power, evoked power, induced power, connectivity and peak frequency...
April 12, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29652769/schizophrenia-and-criminal-responsibility-a-systematic-review
#15
Georgios Tsimploulis, Gérard Niveau, Ariel Eytan, Panteleimon Giannakopoulos, Othman Sentissi
The significant progress of psychiatry in the 20th century provided a sophisticated theoretical framework to analyze the complex relationships between crime and mental illness. Schizophrenia has been traditionally associated with severe cognitive and affective deficits that heavily influence empathy, judgment capacities, but also control of impulsiveness. Although there is an association between psychotic disorders and absence or decrease of legal responsibility, their relationship is also determined by sociodemographic, developmental, and clinical factors...
May 2018: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/29649948/women-s-sexual-dysfunction-associated-with-psychiatric-disorders-and-their-treatment
#16
Rosemary Basson, Thea Gilks
Impairment of mental health is the most important risk factor for female sexual dysfunction. Women living with psychiatric illness, despite their frequent sexual difficulties, consider sexuality to be an important aspect of their quality of life. Antidepressant and antipsychotic medication, the neurobiology and symptoms of the illness, past trauma, difficulties in establishing relationships and stigmatization can all contribute to sexual dysfunction. Low sexual desire is strongly linked to depression. Lack of subjective arousal and pleasure are linked to trait anxiety: the sensations of physical sexual arousal may lead to fear rather than to pleasure...
January 2018: Women's Health
https://www.readbyqxmd.com/read/29649252/prevalence-of-psychotic-disorders-and-its-association-with-methodological-issues-a-systematic-review-and-meta-analyses
#17
Berta Moreno-Küstner, Carlos Martín, Loly Pastor
OBJECTIVES: The purpose of this study is to provide an updated systematic review to identify studies describing the prevalence of psychosis in order to explore methodological factors that could account for the variation in prevalence estimates. METHODS: Studies with original data related to the prevalence of psychosis (published between 1990 and 2015) were identified via searching electronic databases and reviewing manual citations. Prevalence estimates were sorted according to prevalence type (point, 12-months and lifetime)...
2018: PloS One
https://www.readbyqxmd.com/read/29643358/polygenic-risk-for-schizophrenia-and-measured-domains-of-cognition-in-individuals-with-psychosis-and-controls
#18
Rebecca Shafee, Pranav Nanda, Jaya L Padmanabhan, Neeraj Tandon, Ney Alliey-Rodriguez, Sreeja Kalapurakkel, Daniel J Weiner, Raquel E Gur, Richard S E Keefe, Scot K Hill, Jeffrey R Bishop, Brett A Clementz, Carol A Tamminga, Elliot S Gershon, Godfrey D Pearlson, Matcheri S Keshavan, John A Sweeney, Steven A McCarroll, Elise B Robinson
Psychotic disorders including schizophrenia are commonly accompanied by cognitive deficits. Recent studies have reported negative genetic correlations between schizophrenia and indicators of cognitive ability such as general intelligence and processing speed. Here we compare the effect of polygenetic risk for schizophrenia (PRSSCZ ) on measures that differ in their relationships with psychosis onset: a measure of current cognitive abilities (the Brief Assessment of Cognition in Schizophrenia, BACS) that is greatly reduced in psychotic disorder patients, a measure of premorbid intelligence that is minimally affected by psychosis onset (the Wide-Range Achievement Test, WRAT); and educational attainment (EY), which covaries with both BACS and WRAT...
April 12, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29643331/electroencephalographic-delta-alpha-frequency-activity-differentiates-psychotic-disorders-a-study-of-schizophrenia-bipolar-disorder-and-methamphetamine-induced-psychotic-disorder
#19
REVIEW
Fleur M Howells, Hendrik S Temmingh, Jennifer H Hsieh, Andrea V van Dijen, David S Baldwin, Dan J Stein
Electroencephalography (EEG) has been proposed as a neurophysiological biomarker to delineate psychotic disorders. It is known that increased delta and decreased alpha, which are apparent in psychosis, are indicative of inappropriate arousal state, which leads to reduced ability to attend to relevant information. On this premise, we investigated delta/alpha frequency activity, as this ratio of frequency activity may serve as an effective neurophysiological biomarker. The current study investigated differences in delta/alpha frequency activity, in schizophrenia (SCZ), bipolar I disorder with psychotic features and methamphetamine-induced psychosis...
April 12, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29628970/acute-kidney-injury-in-pediatric-patients-with-rhabdomyolysis
#20
Young Shin Lim, Heeyeon Cho, Sang Taek Lee, Yeonhee Lee
Purpose: This study aimed to evaluate the clinical findings in pediatric rhabdomyolysis and the predictive factors for acute kidney injury (AKI) in Korean children. Methods: Medical records of 39 Korean children, who were newly diagnosed with rhabdomyolysis from January 2008 to December 2015, were retrospectively analyzed. The diagnosis was made from the medical history, elevated serum creatinine kinase level >1,000 IU/L, and plasma myoglobin level >150 ng/mL...
March 2018: Korean Journal of Pediatrics
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