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https://www.readbyqxmd.com/read/28811079/neuroleptic-free-youth-at-ultrahigh-risk-for-psychosis-evidence-diminished-emotion-reactivity-that-is-predicted-by-depression-and-anxiety
#1
June Gruber, Gregory P Strauss, Laure Dombrecht, Vijay A Mittal
Although abnormalities in emotional response have long been considered a core feature of the chronic phase of schizophrenia, few investigations have examined emotional response in individuals at ultrahigh-risk (UHR) for psychosis. We investigated whether neuroleptic-free UHR (n=29) and healthy control (n=32) participants differed in emotional reactivity and emotion regulation on a laboratory-based task that required reporting levels of positive and negative affect to pleasant, unpleasant, and neutral stimuli...
August 12, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28805566/botulinum-toxin-therapy-for-nonmotor-aspects-of-parkinson-s-disease
#2
Jarosław Sławek, Mariusz Madaliński
The medical treatment of Parkinson's disease (PD) is symptomatic both in terms of motor and nonmotor aspects. The nonmotor symptoms therapy should be taken into account as many of them negatively influence the quality of life and are treatable. Botulinum neurotoxin (BoNT) offers effective treatment for drooling and bladder dysfunctions and alternative treatment for constipation and pain related to parkinsonism. BoNT for drooling is probably the best-documented therapy for nonmotor symptoms by clinical trials...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28805179/psychosis-as-a-risk-factor-for-suicidal-thoughts-and-behaviors-a-meta-analysis-of-longitudinal-studies
#3
X Huang, K R Fox, J D Ribeiro, J C Franklin
BACKGROUND: Research has long noted higher prevalence rates of suicidal thoughts and behaviors among individuals with psychotic symptoms. Major theories have proposed several explanations to account for this association. Given the differences in the literature regarding the operationalization of psychosis and sample characteristics, a quantitative review is needed to determine to what extent and how psychosis confers risk for suicidality. METHODS: We searched PsycInfo, PubMed, and GoogleScholar for studies published before 1 January 2016...
August 14, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28803095/acute-effects-of-smoked-marijuana-in-marijuana-smokers-at-clinical-high-risk-for-psychosis-a-preliminary-study
#4
Nehal P Vadhan, Cheryl M Corcoran, Gill Bedi, John G Keilp, Margaret Haney
Marijuana use is associated with psychosis, but its effects are understudied in individuals with preexisting risk for psychotic disorders. This preliminary study examined the acute psychological and physiological effects of smoked marijuana (0.0% or 5.5% Δ(9)-THC) in marijuana users at clinical high-risk (CHR; n = 6) to develop a psychotic disorder, and those not at risk (n = 6), under controlled laboratory conditions. CHR marijuana users exhibited temporary increases in psychotic-like states and decreases in neurocognitive performance during marijuana intoxication but control marijuana smokers did not...
August 1, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28803039/suicidal-behaviors-and-their-relationship-with-psychotic-like-symptoms-in-children-and-adolescents-at-clinical-high-risk-for-psychosis
#5
Eugene J D'Angelo, Sarah Hope Lincoln, Nicholas Morelli, Kelsey Graber, Sahil Tembulkar, Joseph Gonzalez-Heydrich
BACKGROUND: Previous research has demonstrated elevated rates of suicide attempts and ideation in individuals with psychosis. This study investigated rates and severity of suicidal behavior in youth with and at clinical high risk for psychosis, and examined the positive, negative, and disorganized symptoms associated with suicidal behaviors among the clinical high risk group. METHODS: Eighty-six youth ages 7-18 (n=21 non-clinical controls [NCC], n=40 clinical high risk [CHR], n=25 diagnosed psychotic disorder [PD]) were recruited...
July 20, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28802934/psychosis-in-parkinson-s-disease
#6
Dominic H Ffytche, Dag Aarsland
Although illusions, hallucinations and delusions did not play a prominent role in James Parkinson's original clinical descriptions, the longitudinal view of disease progression he advocated has important lessons for the study of such symptoms today. A focus on longitudinal progression rather than individual symptoms led to the concept of PD psychosis-a spectrum of positive symptoms in Parkinson's disease. The publication of criteria for PD psychosis in 2007 helped unify the disparate set of symptoms, raising their profile and resulting in a rapid expansion of literature focussing on clinical aspects, mechanisms, and treatment...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28802918/genes-and-nonmotor-symptoms-in-parkinson-s-disease
#7
Ee-Wei Lim, Eng-King Tan
Published data on genetic risk factors of nonmotor symptoms (NMS) are relatively lacking since the first mutation responsible for Parkinson's disease (PD) being reported in 1996. This chapter provides a concise summary of genetic links to common individual NMS such as cognitive impairment, depression, psychosis, olfactory dysfunction, pain, and sleep disorders. Although some genetic variants such as apolipoprotein E and glucocerebrosidase demonstrate consistent links with certain NMS, it is difficult to draw definitive conclusions...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28797526/psychotic-experiences-and-disability-findings-from-the-collaborative-psychiatric-epidemiology-surveys
#8
Hans Oh, Ai Koyanagi, Ian Kelleher, Jordan DeVylder
Psychotic experiences are associated with a number of poor clinical outcomes, including multimorbid psychopathology, suicidal behavior, and poor treatment response. We wished to investigate the relationship between psychotic experiences and disability, including the following domains: cognition, mobility, self-care, social interaction, role functioning, and days out of role. We used three nationally representative and racially/ethnically diverse samples of the general US adult population: the National Comorbidity Survey Replication (NCS-R), the National Latino and Asian American Survey (NLAAS), and the National Survey of American Life (NSAL)...
August 7, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28797004/-lanthanic-presentation-in-first-episode-psychosis-predicts-long-service-delay-the-challenge-of-detecting-masked-psychosis
#9
Erling Inge Kvig, Beate Brinchmann, Cathrine Moe, Steinar Nilssen, Tor Ketil Larsen, Knut Sørgaard
BACKGROUND/AIMS: Studies of pathways to care in first-episode psychosis have documented a substantial treatment delay occurring after patients enter mental health services. An initial presentation with neurotic rather than psychotic symptoms is common in first-episode psychosis. The term "lanthanic patient" has been used to refer to patients presenting with a reason for help-seeking that is unrelated to the underlying pathology. The aim of this study is to explore whether a lanthanic presentation is related to prolonged service delay...
August 11, 2017: Psychopathology
https://www.readbyqxmd.com/read/28794975/altered-structural-network-architecture-is-predictive-of-the-presence-of-psychotic-symptoms-in-patients-with-22q11-2-deletion-syndrome
#10
Maria C Padula, Elisa Scariati, Marie Schaer, Corrado Sandini, Marie Christine Ottet, Maude Schneider, Dimitri Van De Ville, Stephan Eliez
22q11.2 deletion syndrome (22q11DS) represents a homogeneous model of schizophrenia particularly suitable for the search of neural biomarkers of psychosis. Impairments in structural connectivity related to the presence of psychotic symptoms have been reported in patients with 22q11DS. However, the relationships between connectivity changes in patients with different symptomatic profiles are still largely unknown and warrant further investigations. In this study, we used structural connectivity to discriminate patients with 22q11DS with (N = 31) and without (N = 31) attenuated positive psychotic symptoms...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28792130/perceptual-abnormalities-in-an-ultra-high-risk-for-psychosis-population-relationship-to-trauma-and-co-morbid-disorder
#11
Karen O' Connor, Barnaby Nelson, Mary Cannon, Alison Yung, Andrew Thompson
AIMS: The aims of this study were 3-fold. We wished to investigate whether at baseline entry to an ultra-high risk (UHR) clinic whether: (1) perceptual abnormalities are more prevalent in those young people with co-morbid psychiatric diagnoses, (2) perceptual abnormalities are more prevalent in those young people with histories of childhood adversity (childhood trauma, bullying) and (3) perceptual abnormality type is associated with co-morbid psychiatric diagnoses or histories of childhood adversity...
August 9, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28792113/the-role-of-a-family-history-of-psychosis-for-youth-at-clinical-high-risk-of-psychosis
#12
Grace Georgopoulos, Jacqueline Stowkowy, Lu Liu, Kristin S Cadenhead, Tyrone D Cannon, Barbara A Cornblatt, Thomas H McGlashan, Diana O Perkins, Larry J Seidman, Ming T Tsuang, Elaine F Walker, Scott W Woods, Carrie E Bearden, Daniel H Mathalon, Jean Addington
AIM: On average, there is a 10% to 12% likelihood of developing a psychotic disorder solely based on being at familial high risk. However, the introduction of the criteria for clinical high risk (CHR) of psychosis suggested for CHR individuals, 20% to 30% will go on to develop a full-blown psychotic illness within 3 years. Several studies suggest a role for family history in conversion to psychosis among those at CHR. However, we know very little about those who meet the CHR criteria and have a positive family history for psychosis compared to those at CHR with no known family history...
August 9, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28783382/development-of-metabolic-syndrome-in-drug-naive-adolescents-after-12-months-of-second-generation-antipsychotic-treatment
#13
Christina Power Sjo, Anne Dorte Stenstrøm, Anders Bo Bojesen, Jacob Stampe Frølich, Niels Bilenberg
OBJECTIVES: Mental illness is often accompanied by poor physical health and shorter life expectancy. Second-generation antipsychotics (SGAs) are suspected of increasing cardiovascular risk, possibly through development of metabolic syndrome (MetS), and the risk of adverse outcome is even higher if obesity or metabolic aberration starts in childhood or adolescence. METHODS: Drug-naive adolescents were recruited after contact with an outpatient Psychosis Team. Changes relative to baseline in body mass index (BMI), waist circumference (WC), blood pressure (BP), fasting blood glucose (FBG), triglycerides (TG), and high-density lipoprotein (HDL) cholesterol were determined through regular follow-ups...
August 7, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28782490/unmet-needs-in-schizophrenia
#14
Maurizio Pompili, Herbert Y Meltzer
The objectives of this article are to describe current trends in the treatment of schizophrenia and the most interesting new approaches to optimizing outcome and fostering the development of new schizophrenia treatments. RESULTS: Increasing utilization of diverse types of atypical antipsychotic drugs (AAPDs), e.g. clozapine-type serotonin (5-HT)2A and weak dopamine (DA) D2 antagonist, amisulpride, a D2/D3/5-HT7 antagonist, and cariprazine, a D3 partial agonist with additional neurotransmitter targets, is occurring as their advantages in efficacy, especially for cognitive impairment and mood symptoms, and side effects is becoming appreciated...
August 3, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28782283/psychosis-risk-screening-in-different-populations-using-the-prodromal-questionnaire-a-systematic-review
#15
REVIEW
Mark Savill, Jennifer D'Ambrosio, Tyrone D Cannon, Rachel L Loewy
AIM: Diagnosing individuals at ultra high risk (UHR) for psychosis can improve early access to treatment, and a two-stage model utilizing self-report screening followed by a clinical interview can be accurate and efficient. However, it is currently unclear which screening cut-offs to adopt with different populations. METHODS: A systematic review of diagnostic accuracy studies evaluating the Prodromal Questionnaire (PQ) as a preliminary screener for UHR and psychosis was conducted to examine screening effectiveness in different contexts...
August 6, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/28779867/neurological-complications-of-childhood-cancer
#16
Lauren Weaver, Ayman Samkari
Though the treatment of pediatric cancers has come a long way, acute and chronic effects of cancer are still affecting the life of many children. These effects may be caused not only by the malignancy itself but also by the interventions used for the purpose of treatment. This article focuses primarily on the indirect effects of pediatric cancers and their treatment on the central and peripheral nervous system. Chemotherapy, radiation, and stem cell transplantation cause an immune-compromised state and place the patient at risk of infection, the leading cause of mortality in pediatric cancer...
February 2017: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/28779853/preliminary-psychometric-properties-of-the-brief-negative-symptom-scale-in-youth-at-clinical-high-risk-for-psychosis
#17
Gregory P Strauss, Hannah C Chapman
Preliminary psychometric properties of an adapted version of the Brief Negative Symptom Scale (BNSS) are reported in youth at Clinical High-Risk for psychosis (CHR). Participants included 29 CHR youth who met criteria for a prodromal syndrome on the Structured Interview for Prodromal Syndromes (SIPS). The adapted BNSS demonstrated excellent internal consistency, convergent validity, and discriminant validity, suggesting that the BNSS has utility for assessing negative symptoms in a CHR population.
August 2, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28777032/suicidal-ideation-in-an-egyptian-sample-of-hospitalized-patients-with-acute-psychosis
#18
Maha Ftouh, El-Sayed Gad, Mohammad A Seleem, Sameh Saada, Ahmed A Mubarak
BACKGROUND: Suicide mortality is 12 times higher in psychotic patients compared to the general population. Identifying characteristic of suicidal patients among this group might help in preventing such behavior. AIMS: To assess the predictors of suicidal risk in patients hospitalized due to acute psychosis. METHODS: One hundred and fifty patients (age 18 - 60 years) admitted with acute psychotic features were recruited. Patients were evaluated clinically by The Arabic version of Mini International Neuropsychiatric Interview (M...
August 4, 2017: Clinical Schizophrenia & related Psychoses
https://www.readbyqxmd.com/read/28777028/preliminary-validation-of-a-clinical-staging-model-in-schizophrenia-and-related-disorders
#19
Amy Tedja, Eva Velthorst, Mirjam van Tricht, Lieuwe de Haan
Clinical staging for schizophrenia and related disorders might provide an ideal means to overcome some limitations of the current diagnostic system and to facilitate early intervention. This study aims to retrospectively explore 1) the validity of a staging model 2) the stability of staging over time, and 3) the clinical factors associated with transition to more chronic stages. Data were derived from the Genetic Risk and Outcome of Psychosis study, a large cohort study of patients with a schizophrenia spectrum disorder...
August 4, 2017: Clinical Schizophrenia & related Psychoses
https://www.readbyqxmd.com/read/28772136/glutamatergic-metabolites-among-adolescents-at-risk-for-psychosis
#20
Caroline Demro, Laura Rowland, S Andrea Wijtenburg, James Waltz, James Gold, Emily Kline, Elizabeth Thompson, Gloria Reeves, L Elliot Hong, Jason Schiffman
Proton-Magnetic Resonance Spectroscopy ((1)H-MRS) may serve as an important tool for identifying biomarkers that aid the understanding of early psychosis, as development of this condition may be associated with metabolite concentration changes that reflect an alteration in glutamatergic mechanisms. The current study explored (1)H-MRS metabolite concentrations in the striatum and anterior cingulate cortex (ACC) as potential biomarkers of psychosis-risk symptom severity. In a sample of 12 adolescents at clinical high-risk for psychosis, the subclinical symptom of grandiosity significantly correlated with glutamate in the ACC...
July 24, 2017: Psychiatry Research
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