Nurses Must Consider the Impact of Anticholinergic Medications in Schizophrenia Spectrum Disorders

2021 ◽  
Vol 42 (9) ◽  
pp. 887-889
Author(s):  
Jeremy Mills,
2020 ◽  
Vol 62 ◽  
pp. e020014
Author(s):  
Monica de Freitas Frias Chaves ◽  
Cilene Rodrigues

High levels of linguistic referential failures are associated with liability to develop schizophrenia-spectrum disorders, and it has been shown that these failures can differentiate healthy subjects, high-schizotypal and schizophrenics groups. Nevertheless, few investigations have focused on whether or not schizotypal traits in nonclinical populations can also impact linguistic reference. In Brazilian Portuguese, only one previous study (acceptability judgements task) had been conducted, and its results suggest association between schizotypal traits and a more rigid preference for assignment of specific readings to definite singular DPs. Here, we present another experimental study in Brazilian Portuguese,  a comprehension task designed to examine possible effects of schizotypal personality traits on the interpretation of definite singular DPs. The findings, in line with the previous results, support the conclusion that schizotypy does affect the interpretation of definite singular DPs in Brazilian Portuguese. Together, these two experiments suggest that schizotypal personality traits impact the integration of linguistic contextual information into the semantic meaning of definite DPs. This is  consistent with the general hypothesis that schizotypy, similarly to schizophrenia, is associated with pragmatic difficulties. Yet, our results emphasize that the impact of schizotypal traits on pragmatics can be observed even in healthy (nonclinical) speakers.


2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Kristen R Dwyer ◽  
Alexandra M Andrea ◽  
Christina L G Savage ◽  
Ryan D Orth ◽  
LeeAnn Shan ◽  
...  

Abstract Prior studies examining the impact of oxytocin on negative symptoms in schizophrenia have yielded mixed results. The current study explored whether oxytocin can improve more proximal indicators of social affiliation as indicated by changes in behavior, language and subjective indices of social affiliation among individuals with schizophrenia spectrum disorders during a role-play designed to elicit affiliative responses. We tested the hypothesis that daily intranasal oxytocin administered for 6 weeks would improve social affiliation as manifested by increased social skill ratings, use of positive, affiliative, and social words, and subjective responses from a previously published randomized controlled trial. Forty outpatients with schizophrenia or schizoaffective disorder were randomized to the oxytocin, galantamine, or placebo group and completed affiliative role-plays and self-report questionnaires of affect, reactions to the affiliative confederate, and willingness to interact at baseline and post-treatment. Results demonstrated that oxytocin was not effective at improving behavioral or subjective indicators of social affiliation. This study adds to a growing literature that the prosocial effects of oxytocin in schizophrenia are limited or null.


2020 ◽  
pp. 1-9
Author(s):  
Jayati Das-Munshi ◽  
Chin-Kuo Chang ◽  
Alex Dregan ◽  
Stephani L. Hatch ◽  
Craig Morgan ◽  
...  

Abstract Background Across international contexts, people with serious mental illnesses (SMI) experience marked reductions in life expectancy at birth. The intersection of ethnicity and social deprivation on life expectancy in SMI is unclear. The aim of this study was to assess the impact of ethnicity and area-level deprivation on life expectancy at birth in SMI, defined as schizophrenia-spectrum disorders, bipolar disorders and depression, using data from London, UK. Methods Abridged life tables to calculate life expectancy at birth, in a cohort with clinician-ascribed ICD-10 schizophrenia-spectrum disorders, bipolar disorders or depression, managed in secondary mental healthcare. Life expectancy in the study population with SMI was compared with life expectancy in the general population and with those residing in the most deprived areas in England. Results Irrespective of ethnicity, people with SMI experienced marked reductions in life expectancy at birth compared with the general population; from 14.5 years loss in men with schizophrenia-spectrum and bipolar disorders, to 13.2 years in women. Similar reductions were noted for people with depression. Across all diagnoses, life expectancy at birth in people with SMI was lower than the general population residing in the most deprived areas in England. Conclusions Irrespective of ethnicity, reductions in life expectancy at birth among people with SMI are worse than the general population residing in the most deprived areas in England. This trend in people with SMI is similar to groups who experience extreme social exclusion and marginalisation. Evidence-based interventions to tackle this mortality gap need to take this into account.


2021 ◽  
Vol 12 (1) ◽  
pp. 7
Author(s):  
Dorota Frydecka ◽  
Błażej Misiak ◽  
Patryk Piotrowski ◽  
Tomasz Bielawski ◽  
Edyta Pawlak ◽  
...  

Schizophrenia spectrum disorders (SZ) are characterized by impairments in probabilistic reinforcement learning (RL), which is associated with dopaminergic circuitry encompassing the prefrontal cortex and basal ganglia. However, there are no studies examining dopaminergic genes with respect to probabilistic RL in SZ. Thus, the aim of our study was to examine the impact of dopaminergic genes on performance assessed by the Probabilistic Selection Task (PST) in patients with SZ in comparison to healthy control (HC) subjects. In our study, we included 138 SZ patients and 188 HC participants. Genetic analysis was performed with respect to the following genetic polymorphisms: rs4680 in COMT, rs907094 in DARP-32, rs2734839, rs936461, rs1800497, and rs6277 in DRD2, rs747302 and rs1800955 in DRD4 and rs28363170 and rs2975226 in DAT1 genes. The probabilistic RL task was completed by 59 SZ patients and 95 HC subjects. SZ patients performed significantly worse in acquiring reinforcement contingencies during the task in comparison to HCs. We found no significant association between genetic polymorphisms and RL among SZ patients; however, among HC participants with respect to the DAT1 rs28363170 polymorphism, individuals with 10-allele repeat genotypes performed better in comparison to 9-allele repeat carriers. The present study indicates the relevance of the DAT1 rs28363170 polymorphism in RL in HC participants.


2018 ◽  
Vol 54 ◽  
pp. 124-144 ◽  
Author(s):  
Brendon Stubbs ◽  
Davy Vancampfort ◽  
Mats Hallgren ◽  
Joseph Firth ◽  
Nicola Veronese ◽  
...  

AbstractPhysical activity (PA) may be therapeutic for people with severe mental illness (SMI) who generally have low PA and experience numerous life style-related medical complications. We conducted a meta-review of PA interventions and their impact on health outcomes for people with SMI, including schizophrenia-spectrum disorders, major depressive disorder (MDD) and bipolar disorder. We searched major electronic databases until January 2018 for systematic reviews with/without meta-analysis that investigated PA for any SMI. We rated the quality of studies with the AMSTAR tool, grading the quality of evidence, and identifying gaps, future research needs and clinical practice recommendations. For MDD, consistent evidence indicated that PA can improve depressive symptoms versus control conditions, with effects comparable to those of antidepressants and psychotherapy. PA can also improve cardiorespiratory fitness and quality of life in people with MDD, although the impact on physical health outcomes was limited. There were no differences in adverse events versus control conditions. For MDD, larger effect sizes were seen when PA was delivered at moderate-vigorous intensity and supervised by an exercise specialist. For schizophrenia-spectrum disorders, evidence indicates that aerobic PA can reduce psychiatric symptoms, improves cognition and various subdomains, cardiorespiratory fitness, whilst evidence for the impact on anthropometric measures was inconsistent. There was a paucity of studies investigating PA in bipolar disorder, precluding any definitive recommendations. No cost effectiveness analyses in any SMI condition were identified. We make multiple recommendations to fill existing research gaps and increase the use of PA in routine clinical care aimed at improving psychiatric and medical outcomes.


BJPsych Open ◽  
2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Naista Zhand ◽  
Ridha Joober

Background COVID-19 was declared a pandemic in March 2020, by the World Health Organization. The pandemic has had unprecedented worldwide implications, in particular on marginalized populations. Aims The aim of this study is to review the impact of the pandemic on patients with schizophrenia spectrum disorders. Method A number of databases were searched for this review, including PubMed, EMBASE, PsycINFO and Google Scholar. Search terms included psychosis and COVID-19, schizophrenia and COVID-19, and severe mental illness and COVID-19. We included all English language papers and preprints. The final search was done on 15 July 2020. Results Forty-seven relevant studies were identified and included in this review. Studies were summarised into five main subcategories: potential impact of the COVID-19 pandemic on physical health outcomes of patients with schizophrenia spectrum disorders, impact on mental health outcomes, review of case reports and case series to date, treatment recommendation guidelines and risk of increased prevalence of psychosis. Conclusions Patients with schizophrenia spectrum disorders may be vulnerable to the effects of the COVID-19 pandemic. This patient population has a number of risk factors, including psychosocial adversities and illness related factors. Continuous monitoring and long-term studies of the impact of the pandemic on this patient population are required.


2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Pasquale Caponnetto ◽  
Riccardo Polosa ◽  
Deborah Robson ◽  
Linda Bauld

This narrative review focuses on the topic of tobacco smoking amongst people with schizophrenia spectrum disorders. We searched PubMed, PsycInfo and Scopus databases for schizophrenia spectrum disorders and smoking and included articles about the epidemiology of tobacco smoking in people with schizophrenia spectrum disorders, examining the relationship between smoking and mental health. This narrative review describes that a higher prevalence, frequency and impact of both high nicotine dependence and its harmful effects in patients with schizophrenia spectrum disorders compared with those in the general population. Despite several existent theories, the reasons for high smoking rates, the high dependence on nicotine and severity of nicotine withdrawal symptoms are not fully understood. The main aim of this paper is to inform mental health personnel and particularly clinical and health psychologists about the impact and role of tobacco smoking for smokers with schizophrenia spectrum disorders.


2017 ◽  
Vol 41 (S1) ◽  
pp. s833-s834
Author(s):  
A. Russo ◽  
N. Verdolini ◽  
G. Menculini ◽  
P. Moretti ◽  
R. Quartesan ◽  
...  

IntroductionThe “schizophrenia spectrum” concept allowed better identifying the psychopathology underpinning disorders including schizophrenia, schizoaffective disorder (SZA) and cluster A personality disorders (PD).AimsTo compare the clinical portrait of the schizophrenia spectrum disorders, focusing on the impact of the affective dimension.MethodsInpatients at the acute psychiatric ward of Perugia (Umbria-Italy) were evaluated with the structured clinical interview for DSM-IV Axis I and Axis II disorders and diagnosed with a “schizophrenia spectrum” disorder according to DSM-IV-TR. The clinical evaluation was conducted using the positive and negative syndrome scale (PANSS). Pearson correlations of the different subscales in the three groups and between the negative scales with the affective symptom “depression” were conducted.ResultsThe sample consisted of 72 inpatients (schizophrenia 55.6%, SZA 20% and cluster A PD 19.4%). The negative and the general psychopathology scales directly correlated at different degrees in the three groups (schizophrenia: r = 0.750; P < 0.001; SZA: r = 0.625, P = 0.006; cluster A PD: r = 0.541, P = 0.046). The symptom “depression” directly correlated with 5 out of 7 negative symptoms: blunted affect (r = 0.616, P < 0.001), emotional withdrawal (r = 0.643, P < 0.001), poor rapport (r = 0.389, P = 0.001), passive/apathetic social withdrawal (r = 0.538, P < 0.001), lack of spontaneity & flow of conversation (r = 0.399, P = 0.001).ConclusionsOur study confirmed the existence of the “schizophrenia spectrum” with combined different disorders lying on a continuum in which negative symptoms mainly correlated with the psychopathological functioning. Noteworthy, the symptoms of the negative scale strongly correlated with the “depression” symptom, underlying the impact of the affective symptoms on the severity of the “schizophrenia spectrum” disorders.Disclosure of interestThe authors have not supplied their declaration of competing interest.


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