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1.
Schizophr Res ; 267: 223-229, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38574562

RESUMO

BACKGROUND: Endothelial inflammation may be involved in the pathogenesis of schizophrenia, and cellular adhesion molecules (CAMs) on endothelial cells may facilitate leukocyte binding and transendothelial migration of cells and inflammatory factors. The aim of the present study was to assess levels of soluble cellular adhesion molecules, including intercellular adhesion molecule (ICAM)-1, vascular adhesion molecule (VCAM)-1, mucosal addressin cell adhesion molecule (MADCAM), junctional adhesion molecule (JAM-A) and neural cadherin (N-CAD) in patients with schizophrenia compared to healthy controls. METHODS: The study population consists of 138 patients with schizophrenia-spectrum disorder, of whom 54 were drug-naïve, compared to 317 general population controls. The potential confounders age, gender, smoking and body mass index (BMI) were adjusted for in linear regression models. RESULTS: The total patient group showed significantly higher levels of ICAM-1 (p < 0.001) and VCAM-1 (p < 0.001) compared to controls. Previously medicated patients showed higher ICAM-1 levels compared to drug-naïve patients (p = 0.042) and controls (p < 0.001), and elevated VCAM-1 levels compared to controls (p < 0.001). Drug-naive patients had elevated levels of VCAM-1 (p = 0.031) compared to controls. CONCLUSIONS: In our study, patients with schizophrenia - including the drug-naïve - have higher levels of soluble CAMs compared to healthy controls. These findings suggest activation of the endothelial system as in inflammation.


Assuntos
Moléculas de Adesão Celular , Molécula 1 de Adesão Intercelular , Esquizofrenia , Molécula 1 de Adesão de Célula Vascular , Humanos , Feminino , Masculino , Esquizofrenia/tratamento farmacológico , Esquizofrenia/sangue , Esquizofrenia/metabolismo , Adulto , Moléculas de Adesão Celular/sangue , Pessoa de Meia-Idade , Molécula 1 de Adesão de Célula Vascular/sangue , Molécula 1 de Adesão Intercelular/sangue , Antipsicóticos/farmacologia , Antipsicóticos/uso terapêutico
2.
Acta Psychiatr Scand ; 149(3): 244-255, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38225748

RESUMO

INTRODUCTION: Associations between psychiatric disorders and mortality have been extensively studied, but limited evidence exists regarding influence of clinical characteristics on mortality risk, at the time of acute psychiatric hospitalization. METHODS: A prospective total-cohort study included all patients consecutively admitted to Haukeland University Hospital's psychiatric acute ward in Bergen, Norway between 2005 and 2014 (n = 6125). Clinical interviews were conducted at the first admission within the study period, and patients were subsequently followed for up to 15 years in the Norwegian Cause of Death Registry. Competing risks regression models were used to investigate associations between clinical characteristics at first admission and the risk of natural and unnatural death during follow-up. RESULTS: The mean age at first admission and at time of death was 42.5 and 62.8 years, respectively, and the proportion of women in the sample was 47.2%. A total of 1381 deaths were registered during follow-up, of which 65.5% had natural, 30.4% unnatural, and 4.1% unknown causes. Higher age, male sex, unemployment, cognitive deficits, and physical illness were associated with increased risk of natural death. Male sex, having no partner, physical illness, suicide attempts, and excessive use of alcohol and illicit substances were associated with increased risk of unnatural death. CONCLUSION: Psychiatric symptoms, except suicide attempts, were unrelated to increased mortality risk. In the endeavor to reduce the increased mortality risk in people with mental disorders, focus should be on addressing modifiable risk factors linked to physical health and excessive use of alcohol and illicit substances.


Assuntos
Hospitalização , Transtornos Mentais , Humanos , Masculino , Feminino , Estudos Prospectivos , Estudos de Coortes , Causas de Morte , Transtornos Mentais/psicologia , Fatores de Risco
4.
J Clin Psychopharmacol ; 43(3): 246-258, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37083542

RESUMO

BACKGROUND: Depressive symptoms are frequent in schizophrenia and associated with a poorer outcome. Currently, the optimal treatment for depressive symptoms in schizophrenia remains undetermined. Amisulpride, aripiprazole, and olanzapine all have antidepressive pharmacodynamic properties, ranging from serotonergic affinities to limbic dopaminergic selectivity. Consequently, in a 12-month pragmatic, randomized clinical trial, we aimed to investigate differences in antidepressive effectiveness among amisulpride, aripiprazole, and olanzapine as a secondary outcome, measured by change in the Calgary Depression Scale for Schizophrenia sum score in patients within the schizophrenia spectrum. METHODS: Psychotic patients within the schizophrenia spectrum were included, and effectiveness was analyzed with latent growth curve modeling. RESULTS: Of the 144 patients, 51 (35%) were women, the mean age was 31.7 (SD 12.7), and 39% were antipsychotic naive. At inclusion, 68 (47%) participants had a Calgary Depression Scale for Schizophrenia sum score >6, indicating severe depressive symptoms. Across the 12-month follow-up, there was a depressive symptom reduction in all medication groups, but no statistically significant differences between the study drugs. Separate analyses of the subcohort with elevated depressive symptoms at inclusion also failed to find differences in depressive symptom reduction between study drugs. The reduction in depressive symptoms mainly occurred within 6 weeks after randomization. CONCLUSIONS: There was a reduction in depressive symptoms under treatment with amisulpride, aripiprazole, and olanzapine in acutely psychotic patients with schizophrenia spectrum disorder, but no differences between the drugs.


Assuntos
Antipsicóticos , Esquizofrenia , Humanos , Feminino , Adulto , Masculino , Olanzapina/uso terapêutico , Esquizofrenia/tratamento farmacológico , Aripiprazol/uso terapêutico , Amissulprida , Benzodiazepinas/efeitos adversos , Antipsicóticos/efeitos adversos , Antidepressivos/uso terapêutico
5.
Psychol Med ; 53(4): 1479-1488, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-35387700

RESUMO

BACKGROUND: Both neurodegenerative and neurodevelopmental abnormalities have been suggested to be part of the etiopathology of severe mental illness (SMI). Neuron-specific enolase (NSE), mainly located in the neuronal cytoplasm, may indicate the process as it is upregulated after neuronal injury while a switch from non-neuronal enolase to NSE occurs during neuronal maturation. METHODS: We included 1132 adult patients with SMI [schizophrenia (SZ) or bipolar spectrum disorders], 903 adult healthy controls (HC), 32 adolescent patients with SMI and 67 adolescent HC. Plasma NSE concentrations were measured by enzyme immunoassay. For 842 adults and 85 adolescents, we used total grey matter volume (TGMV) based on T1-weighted magnetic resonance images processed in FreeSurfer v6.0. We explored NSE case-control differences in adults and adolescents separately. To investigate whether putative case-control differences in NSE were TGMV-dependent we controlled for TGMV. RESULTS: We found significantly lower NSE concentrations in both adult (p < 0.001) and adolescent patients with SMI (p = 0.007) compared to HC. The results remained significant after controlling for TGMV. Among adults, both patients with SZ spectrum (p < 0.001) and bipolar spectrum disorders (p = 0.005) had lower NSE than HC. In both patient subgroups, lower NSE levels were associated with increased symptom severity. Among adults (p < 0.001) and adolescents (p = 0.040), females had lower NSE concentrations than males. CONCLUSION: We found lower NSE concentrations in adult and adolescent patients with SMI compared to HC. The results suggest the lack of progressive neuronal injury, and may reflect abnormal neuronal maturation. This provides further support of a neurodevelopmental rather than a neurodegenerative mechanism in SMI.


Assuntos
Transtorno Bipolar , Transtornos Mentais , Esquizofrenia , Masculino , Feminino , Humanos , Adulto , Adolescente , Neurônios , Fosfopiruvato Hidratase
6.
Brain Sci ; 12(10)2022 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-36291316

RESUMO

BACKGROUND: Transcranial direct current stimulation (tDCS) is used as treatment for auditory verbal hallucinations (AVH). The theory behind the treatment is that tDCS increases activity in prefrontal cognitive control areas, which are assumed to be hypoactive, and simultaneously decreases activity in temporal speech perception areas, which are assumed to be hyperactive during AVH. We tested this hypofrontal/hypertemporal reversal theory by investigating anatomical, neurotransmitter, brain activity, and network connectivity changes over the course of tDCS treatment. METHODS: A double-blind, randomized controlled trial was conducted with 21 patients receiving either sham or real tDCS treatment (2 mA) twice daily for 5 days. The anode was placed over the left dorsolateral prefrontal cortex (DLPFC) and the cathode over the left temporo-parietal cortex (TPC). Multimodal neuroimaging as well as clinical and neurocognitive functioning assessment were performed before, immediately after, and three months after treatment. RESULTS: We found a small reduction in AVH severity in the real tDCS group, but no corresponding neuroimaging changes in either DLPFCD or TPC. LIMITATIONS: The study has a small sample size. CONCLUSION: The results suggest that the currently leading theory behind tDCS treatment of AVH may need to be revised, if confirmed by studies with larger N. Tentative findings point to the involvement of Broca's area as a critical structure for tDCS treatment.

7.
Schizophr Res ; 248: 35-41, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35933742

RESUMO

BACKGROUND: Evidence is limited for the associations between use of psychotropic medications and overactive, aggressive, disruptive or agitated behavior (OADA)1 in clinical practice. AIMS: To investigate the associations between risk of readmission with OADA and use of antipsychotics, antidepressants, mood stabilizers and benzodiazepines in patients with schizophrenia. METHOD: A consecutive total cohort diagnosed with schizophrenia (N = 663) after admission to the Haukeland University Hospital psychiatric acute unit in Bergen, Norway, was followed from discharge over a 10-year period. At every following readmission, the level of OADA was assessed using the first item of the Health of the Nation Outcome Scale (HoNOS). Periods of use versus non-use of antipsychotics, antidepressants, mood stabilizers and benzodiazepines were recorded as time-dependent variables in each patient and compared using Cox multiple regression analyses. RESULTS: A total of 161 (24.3 %) patients were readmitted with OADA, and the mean (SD) and median times in years to readmission with OADA were 2.8 (2.6) and 2.1, respectively. We found that the risk of readmission with OADA was negatively associated with use of antipsychotics (adjusted hazard ratio (AHR) = 0.33, p < 0.01, CI: 0.24-0.46) and antidepressants (AHR = 0.57, p = 0.03, CI: 0.34-0.95), positively associated with use of benzodiazepines (AHR = 1.95, p < 0.01, CI: 1.31-2.90) and not significantly associated with use of mood stabilizers. CONCLUSIONS: Use of antipsychotics and antidepressants is associated with reduced risk of readmission with OADA whereas benzodiazepines are associated with an increased risk of readmission with OADA in patients with schizophrenia.


Assuntos
Antipsicóticos , Esquizofrenia , Humanos , Esquizofrenia/tratamento farmacológico , Esquizofrenia/induzido quimicamente , Psicotrópicos/efeitos adversos , Antipsicóticos/efeitos adversos , Benzodiazepinas/efeitos adversos , Antidepressivos/uso terapêutico , Antimaníacos , Anticonvulsivantes
8.
World J Psychiatry ; 12(3): 521-532, 2022 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-35433321

RESUMO

BACKGROUND: Antipsychotic drugs remain the mainstay of schizophrenia treatment; however, their effectiveness has been questioned, and it is not possible to predict the response to a specific antipsychotic drug in an individual patient. Thus, it is important to compare the effectiveness of the various antipsychotics and search for possible response predictors. AIM: To investigate the effectiveness of antipsychotic drugs, we examined response trajectories and predictors for belonging to different trajectory groups. METHODS: The Bergen-Stavanger-Innsbruck-Trondheim (BeSt InTro) trial compared the effectiveness of three atypical antipsychotics-amisulpride, aripiprazole, and olanzapine-in a prospective, semirandomized, rater-blind, head-to-head design. Adult participants with a schizophrenia spectrum disorder diagnosis, according to international classification of diseases, Tenth Revision (ICD-10) F20-29, were included. Participants were followed for a period of 12 mo, with assessments at baseline; after one, three and six weeks; and after three, six, nine and 12 mo. A latent class mixed model was fitted to our data. The three-trajectory model based on the Positive and Negative Syndrome Scale (PANSS) total score reduction was found to have adequate fit, and the study drugs, as well as various demographic and clinical parameters, were tested as predictors for belonging to the different trajectory groups. RESULTS: Overall, 144 participants were included, and 41% completed the 12-mo study period. The largest trajectory group, consisting of 74% of participants, showed a PANSS total score reduction of 59% from baseline to 12 mo (Good response group). A trajectory group comprising 13% of participants had their PANSS total score reduced by 82.5% at 12 mo (Strong response group), while the last response trajectory group comprising 13% of the participants had a PANSS total score reduction of 13.6% (Slight response group). The largest part of the total reduction for the Good and Strong response groups occurred at six weeks of treatment, amounting to 45% and 48% reductions from baseline, respectively. The use of amisulpride predicted belonging to the Strong response group, while unemployment, depression, and negative psychotic symptoms at baseline increased the chance of belonging to the Slight response group, indicating a poor response to antipsychotic drug treatment. CONCLUSION: Most of the participants (87%) had a good outcome after one year. Amisulpride users, more often than aripiprazole and olanzapine users, belonged to the response trajectory group with a strong response.

9.
Acta Neuropsychiatr ; 34(5): 282-288, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35260218

RESUMO

OBJECTIVE: Akathisia is among the most unpleasant side effects related to antipsychotic drug (AP) use, and possible associations between akathisia and agitation, depression and suicidal behaviour, respectively, have been described in previous literature. New generation antipsychotics are however regarded less prone to induce this particular adverse effect compared to older drugs, but evidence is incomplete and in need of confirmation from clinically relevant samples and settings. We, therefore, aim to investigate akathisia at hospital discharge for patients consecutively admitted with acute-phase psychosis and treated with atypical antipsychotics according to guideline-concordant clinical practice. METHODS: This exploratory study is part of a naturalistic randomised controlled study in patients admitted with acute phase psychosis (N = 109). We report cross-sectional data at discharge/first follow-up after acute psychiatric hospital admission for patients with schizophrenia and related psychotic disorders. RESULTS: There were statistically significant positive associations between akathisia and the following; suicidality in men (Beta 0.306, p = 0.048), but not in women; agitation in those previously unexposed to antipsychotics (Beta 0.288, p = 0.047) and depression in those exposed to antipsychotics before hospital admittance (Beta 0.375, p = 0.031). CONCLUSION: Main findings were that akathisia is still a prevalent side effect in a clinically relevant sample of patients treated with atypical antipsychotics. Our results suggest that akathisia is significantly associated with depression, suicidality and agitation in different subgroups of patients receiving APs. Akathisia can be detrimental and the relations between akathisia and depression, suicidality and agitation should be investigated further in prospective, hypothesis-testing studies with larger samples.


Assuntos
Antipsicóticos , Suicídio , Masculino , Humanos , Feminino , Antipsicóticos/efeitos adversos , Agitação Psicomotora , Ideação Suicida , Estudos Prospectivos , Estudos Transversais , Depressão
10.
Brain Behav Immun ; 99: 299-306, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34758379

RESUMO

BACKGROUND: Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental illnesses (SMI) that are part of a psychosis continuum, and dysregulated innate immune responses have been suggested to be involved in their pathophysiology. However, disease-specific immune mechanisms in SMI are not known yet. Recently, dyslipidemia has been linked to systemic inflammasome activation, and elevated atherogenic lipid ratios have been shown to correlate with circulating levels of inflammatory biomarkers in SMI. It is, however, not yet known if increased systemic cholesterol load leads to inflammasome activation in these patients. METHODS: We tested the hypothesis that patients with SCZ and BD display higher circulating levels compared to healthy individuals of key members of the IL-18 system using a large patient cohort (n = 1632; including 737 SCZ and 895 BD), and healthy controls (CTRL; n = 1070). In addition, we assessed associations with coronary artery disease risk factors in SMI, focusing on relevant inflammasome-related, neuroendocrine, and lipid markers. RESULTS: We report higher baseline levels of circulating IL-18 system components (IL-18, IL-18BPA, IL-18R1), and increased expression of inflammasome-related genes (NLRP3 and NLRC4) in the blood of patients relative to CTRL. We demonstrate a cholesterol dyslipidemia pattern in psychotic disorders, and report correlations between levels of blood cholesterol types and the expression of inflammasome system elements in SMI. CONCLUSIONS: Based on these results, we suggest a role for inflammasome activation/dysregulation in SMI. Our findings further the understanding of possible underlying inflammatory mechanisms and may expose important therapeutic targets in SMI.


Assuntos
Transtornos Psicóticos , Esquizofrenia , Humanos , Inflamassomos/metabolismo , Interleucina-18 , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo
11.
Schizophr Bull ; 48(1): 37-46, 2022 01 21.
Artigo em Inglês | MEDLINE | ID: mdl-34499169

RESUMO

BACKGROUND: Immune dysfunction has been implicated in the pathogenesis of schizophrenia and other nonaffective psychosis (SCZ), bipolar spectrum disorder (BIP) and major depressive disorder (MDD). The cytokines B cell-activating factor (BAFF) and A proliferation-inducing ligand (APRIL) belong to the tumor necrosis factor (TNF) super family and are essential in orchestrating immune responses. Abnormal levels of BAFF and APRIL have been found in autoimmune diseases with CNS affection. METHODS: We investigated if plasma levels of BAFF and APRIL differed between patients with SCZ, BIP, and MDD with psychotic symptoms (n = 2009) and healthy control subjects (HC, n = 1212), and tested for associations with psychotic symptom load, controlling for sociodemographic status, antipsychotic and other psychotropic medication, smoking, body-mass-index, and high sensitivity CRP. RESULTS: Plasma APRIL level was significantly lower across all patient groups compared to HC (P < .001; Cohen's d = 0.33), and in SCZ compared to HC (P < .001; d = 0.28) and in BIP compared to HC (P < .001; d = 0.37). Lower plasma APRIL was associated with higher psychotic symptom load with nominal significance (P = .017), but not with any other clinical characteristics. Plasma BAFF was not significantly different across patient groups vs HC, but significantly higher in BIP compared to HC (P = .040; d = 0.12) and SCZ (P = .027; d = 0.10). CONCLUSIONS: These results show aberrant levels of BAFF and APRIL and association with psychotic symptoms in patients with SCZ and BIP. This suggest that dysregulation of the TNF system, mediated by BAFF and APRIL, is involved in the pathophysiology of psychotic disorders.


Assuntos
Transtornos Psicóticos Afetivos/sangue , Fator Ativador de Células B/sangue , Transtorno Bipolar/sangue , Transtorno Depressivo Maior/sangue , Esquizofrenia/sangue , Membro 13 da Superfamília de Ligantes de Fatores de Necrose Tumoral/sangue , Adulto , Transtornos Psicóticos Afetivos/fisiopatologia , Transtorno Bipolar/fisiopatologia , Estudos Transversais , Transtorno Depressivo Maior/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Esquizofrenia/fisiopatologia
12.
Schizophr Res ; 235: 29-35, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34303258

RESUMO

BACKGROUND: In society at large, it is debated whether use of antipsychotic drugs is associated with increased or decreased mortality among patients with schizophrenia. Large register studies have demonstrated an increased mortality risk associated with non-use of antipsychotic drugs, but prospective studies are missing. AIMS: To investigate the association between mortality and non-use of antipsychotics in patients with schizophrenia. METHOD: An open cohort study included and followed all patients with a discharge-diagnosis of schizophrenia consecutively admitted to a psychiatric acute unit at Haukeland University Hospital, Bergen, Norway during a 10 year period (n = 696). Cox multiple regression analyses were conducted with use of antipsychotic drugs as a time dependent variable, and periods of use and non-use were compared within individual patients. Adjustments were made for gender, age at index admission, number of acute psychiatric hospital admissions, excessive use of alcohol and illicit substances and use of benzodiazepines and antidepressants. RESULTS: A total of 68 (9.8%) deaths were registered during follow-up. Of these, 40 (59%) had natural causes, whereas 26 (38%) had unnatural causes. Non-use of antipsychotics was associated with 2.15 (p = .01, CI: 1.24-3.72) times higher mortality risk compared to use of antipsychotics. The difference in mortality risk between use and non-use of antipsychotic drugs was age dependent, with the largest risk difference in young patients. CONCLUSIONS: Non-use of antipsychotic drugs was associated with twofold increased mortality risk in patients with schizophrenia.


Assuntos
Antipsicóticos , Esquizofrenia , Antipsicóticos/efeitos adversos , Benzodiazepinas/uso terapêutico , Estudos de Coortes , Humanos , Estudos Prospectivos , Esquizofrenia/tratamento farmacológico , Esquizofrenia/epidemiologia
13.
J Clin Psychopharmacol ; 41(4): 389-396, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33938520

RESUMO

BACKGROUND: Most studies investigating antipsychotic effectiveness report either total psychopathology or symptom cluster findings. Studies focusing on a separate symptom, such as hallucinations, a hallmark symptom in schizophrenia, are scarce.Therefore, the current study aims to compare the antihallucinatory effectiveness of 3 pharmacologically different antipsychotics: olanzapine, amisulpride, and aripiprazole. METHODS: The present study is part of the Bergen-Stavanger-Innsbruck-Trondheim study, a 12-month prospective, randomized, pragmatic antipsychotic drug trial in active-phase schizophrenia spectrum disorders. The primary outcome of the present study was change of hallucinations as measured by item P3 (hallucinatory behavior) from the Positive and Negative Syndrome Scale in the subgroup with hallucinations at baseline. Primary analyses were intention to treat. RESULTS: A total of 144 participants were included in the study, where 105 (72%) had a score of 3 or more on the Positive and Negative Syndrome Scale P3 item at baseline, indicating the presence of hallucinations (HALL subgroup).In the HALL subgroup, a significantly less reduction of hallucinations was revealed for participants using olanzapine in weeks 12, 26, 39, and 52 when compared with amisulpride and in weeks 26 and 52 when compared with aripiprazole. In subanalyses for participants never exposed to antipsychotic drugs (antipsychotic-naive) and those who had used antipsychotics before entering the study, antihallucinatory differences were revealed only in the latter group. CONCLUSIONS: A differential antihallucinatory effect of the 3 study drugs was present. The inferior effect of olanzapine seems to be driven by the subgroup of participants exposed to antipsychotic treatment before entering the study.


Assuntos
Amissulprida , Aripiprazol , Alucinações , Olanzapina , Esquizofrenia , Adulto , Amissulprida/administração & dosagem , Amissulprida/efeitos adversos , Antipsicóticos/administração & dosagem , Antipsicóticos/efeitos adversos , Aripiprazol/administração & dosagem , Aripiprazol/efeitos adversos , Sintomas Comportamentais/diagnóstico , Sintomas Comportamentais/psicologia , Monitoramento de Medicamentos/métodos , Feminino , Alucinações/diagnóstico , Alucinações/tratamento farmacológico , Alucinações/etiologia , Humanos , Masculino , Olanzapina/administração & dosagem , Olanzapina/efeitos adversos , Gravidade do Paciente , Escalas de Graduação Psiquiátrica , Esquizofrenia/diagnóstico , Esquizofrenia/tratamento farmacológico , Resultado do Tratamento
14.
Diagnostics (Basel) ; 11(1)2021 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-33477803

RESUMO

The relation between auditory verbal hallucinations (AVH) and white matter has been studied, but results are still inconsistent. This inconsistency may be related to having only a single time-point of AVH assessment in many studies, not capturing that AVH severity fluctuates over time. In the current study, AVH fluctuations were captured by utilizing a longitudinal design and using repeated (Positive and Negative Symptoms Scale) PANSS questionnaire interviews over a 12 month period. We used a Magnetic Resonance Diffusion Tensor Imaging (MR DTI) sequence and tract-based spatial statistics (TBSS) to explore white matter differences between two subtypes of schizophrenia patients; 44 hallucinating (AVH+) and 13 non-hallucinating (AVH-), compared to 13 AVH- matched controls and 44 AVH+ matched controls. Additionally, we tested for hemispheric fractional anisotropy (FA) asymmetry between the groups. Significant widespread FA-value reduction was found in the AVH+ group in comparison to the AVH- group. Although not significant, the extracted FA-values for the control group were in between the two patient groups, for all clusters. We also found a significant difference in FA-asymmetry between the AVH+ and AVH- groups in two clusters, with significantly higher leftward asymmetry in the AVH- group. The current findings suggest a possible qualitative difference in white matter integrity between AVH+ and AVH- patients. Strengths and limitations of the study are discussed.

15.
J Clin Psychopharmacol ; 40(6): 534-540, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33136922

RESUMO

BACKGROUND: Remission in schizophrenia is difficult to achieve. Antipsychotic drugs are critical in the treatment of schizophrenia. International guidelines for the pharmacological treatment of schizophrenia recommend a 3-step algorithm with clozapine being the third-line antipsychotic agent. This study investigated the 1-year outcome and the application of the guidelines for the pharmacological treatment of nonremitted first-episode schizophrenia (FES) patients during the first year of follow-up. METHODS: A sample of 78 FES patients from the Norwegian TIPS (Early Treatment and Intervention in Psychosis) 2 study was assessed at the end of the first year of follow-up. The symptom remission criteria were those defined by the Remission in Schizophrenia Working Group. The adherence to the pharmacological guidelines was assessed by reading the medical files and by a digital search of the words "clozapine," "klozapin," and "Leponex" in the hospital electronic data system. RESULTS: The majority (n = 53, 67.9%) of the patients included were nonremitted at the 1-year follow-up. The majority of the nonremitted patients received either none (7.5%), one (56.6%), or 2 types (15.1%) of antipsychotic drugs during the first year of follow-up. Only 2 (3.8%) received treatment with clozapine, and 3 (5.7%) in total were offered it. CONCLUSIONS: For our FES sample, there was a low 1-year remission rate and a poor adherence to the pharmacological guidelines. Higher adherence to treatment guidelines with a more intensified antipsychotic treatment, which in some cases will include clozapine, will enhance the quality of treatment and may enhance the rates of remission for schizophrenia.


Assuntos
Antipsicóticos/uso terapêutico , Clozapina/uso terapêutico , Fidelidade a Diretrizes/normas , Guias de Prática Clínica como Assunto/normas , Padrões de Prática Médica/normas , Esquizofrenia/tratamento farmacológico , Psicologia do Esquizofrênico , Adolescente , Adulto , Algoritmos , Antipsicóticos/efeitos adversos , Tomada de Decisão Clínica , Clozapina/efeitos adversos , Feminino , Seguimentos , Humanos , Masculino , Noruega , Indução de Remissão , Esquizofrenia/diagnóstico , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
16.
Artigo em Inglês | MEDLINE | ID: mdl-32859549

RESUMO

BACKGROUND: Schizophrenia (SZ) and bipolar disorder (BD) share substantial neurodevelopmental components affecting brain maturation and architecture. This necessitates a dynamic lifespan perspective in which brain aberrations are inferred from deviations from expected lifespan trajectories. We applied machine learning to diffusion tensor imaging (DTI) indices of white matter structure and organization to estimate and compare brain age between patients with SZ, patients with BD, and healthy control (HC) subjects across 10 cohorts. METHODS: We trained 6 cross-validated models using different combinations of DTI data from 927 HC subjects (18-94 years of age) and applied the models to the test sets including 648 patients with SZ (18-66 years of age), 185 patients with BD (18-64 years of age), and 990 HC subjects (17-68 years of age), estimating the brain age for each participant. Group differences were assessed using linear models, accounting for age, sex, and scanner. A meta-analytic framework was applied to assess the heterogeneity and generalizability of the results. RESULTS: Tenfold cross-validation revealed high accuracy for all models. Compared with HC subjects, the model including all feature sets significantly overestimated the age of patients with SZ (Cohen's d = -0.29) and patients with BD (Cohen's d = 0.18), with similar effects for the other models. The meta-analysis converged on the same findings. Fractional anisotropy-based models showed larger group differences than the models based on other DTI-derived metrics. CONCLUSIONS: Brain age prediction based on DTI provides informative and robust proxies for brain white matter integrity. Our results further suggest that white matter aberrations in SZ and BD primarily consist of anatomically distributed deviations from expected lifespan trajectories that generalize across cohorts and scanners.


Assuntos
Transtorno Bipolar , Esquizofrenia , Substância Branca , Transtorno Bipolar/diagnóstico por imagem , Encéfalo/diagnóstico por imagem , Imagem de Tensor de Difusão , Humanos , Esquizofrenia/diagnóstico por imagem , Substância Branca/diagnóstico por imagem
17.
BJPsych Open ; 6(4): e63, 2020 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-32552924

RESUMO

BACKGROUND: The common recommendation that adults with onset of mental illness after the age of 65 should receive specialised psychogeriatric treatment is based on limited evidence. AIMS: To compare factors related to psychiatric acute admission in older adults who have no previous psychiatric history (NPH) with that of those who have a previous psychiatric history (PPH). METHOD: Cross-sectional cohort study of 918 patients aged ≥65 years consecutively admitted to a general adult psychiatric acute unit from 2005 to 2014. RESULTS: Patients in the NPH group (n = 526) were significantly older than those in the PPH group (n = 391) (77.6 v. 70.9 years P < 0.001), more likely to be men, married or widowed and admitted involuntarily. Diagnostic prevalence in the NPH and PPH groups were 49.0% v. 8.4% (P < 0.001) for organic mental disorders, 14.6% v. 30.4% (P < 0.001) for psychotic disorders, 30.2% v. 55.5% (P < 0.001) for affective disorders and 20.7% v. 13.3% (P = 0.003) for somatic disorders. The NPH group scored significantly higher on the Health of the Nation Outcome Scale (HoNOS) items agitated behaviour; cognitive problems; physical illness or disability and problems with activities of daily living, whereas those in the PPH group scored significantly higher on depressed mood. Although the PPH group were more likely to report suicidal ideation, those in the NPH group were more likely to have made a suicide attempt before the admission. CONCLUSIONS: Among psychiatric patients >65 years, the subgroup with NPH were characterised by more physical frailty, somatic comorbidity and functional and cognitive impairment as well as higher rates of preadmission suicide attempts. Admitting facilities should be appropriately suited to manage their needs.

18.
Nord J Psychiatry ; 74(7): 497-504, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32242498

RESUMO

Introduction: Psychosis is a multifaceted clinical phenomenon in which the various symptoms may show a differential response to treatment. Important information may be lost when heterogeneous symptoms are grouped together in global sum scores when studying treatment effects.Aims: The aim of this study was to compare the level and rate of change in the two separate symptoms hallucinations and delusions during the acute psychotic phase, and to explore whether potential temporal differences depend on diagnosis or patients being previously medicated with antipsychotics or not.Method: Patients admitted with active symptoms of schizophrenia or related psychotic disorders were included in the Bergen Psychosis Project (BPP) (N = 226), a prospective, pragmatic, study of four second-generation antipsychotics. The Positive and Negative Syndrome Scale were assessed at baseline, one, three and six months.Results: Over the total follow-up period, latent growth curve models showed greater reductions in delusions than in hallucinations. However, the percentage of the total reduction was found to be larger in hallucinations than that of delusions in the first interval (91% vs. 64%). The levels and changes in these variables were dependent on diagnosis and whether or not patients had a life-time history of antipsychotic use.Conclusion: Focusing on separate symptoms rather than general symptom clusters could offer clinicians a useful approach when evaluating the early response of antipsychotics.ClinicalTrials.gov ID: NCT00932529; URL: http://www.clinicaltrials.gov/.


Assuntos
Antipsicóticos , Transtornos Psicóticos , Antipsicóticos/efeitos adversos , Delusões/tratamento farmacológico , Alucinações/induzido quimicamente , Alucinações/tratamento farmacológico , Humanos , Estudos Prospectivos , Transtornos Psicóticos/tratamento farmacológico
19.
Nord J Psychiatry ; 73(4-5): 211-218, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31070510

RESUMO

Background: As a result of deinstitutionalization of psychiatric treatment and care, many people with severe mental illness have been offered supported accommodation. However, research on this costly intervention in Norway has been scarce. Aims: The aim of this study was to prospectively investigate the clinical and demographic factors associated with allocation to supported accommodation for people with schizophrenia. Methods: The study was a prospective cohort study of 334 people with schizophrenia acutely admitted to Haukeland University Hospital between 2005 and 2010. Information concerning allocation to supported accommodation in their residential municipalities was collected retrospectively. Univariate and multivariate statistical methods were used to assess the association of clinical and demographical variables with allocation to supported accommodation. Results: Supported accommodation was allocated to 29.6% of the participants during the study period. Age, gender, implementation of compulsory mental health care, substance abuse, symptom burden and suicidality were not associated with allocation to supported accommodation. Functional impairment, especially difficulties with activities of daily living, experiencing exacerbation in the course of chronic disease, being medicated and of Norwegian origin, favoured supported accommodation. Conclusions: Our results supported the hypothesis that people with severe mental illness presenting the greatest need for supported accommodation, based on functional difficulties and exacerbation of chronic disease were allocated supported accommodation. Symptom burden was not associated with allocation. Clinical implications: Further research is needed to examine the impact of supported accommodation on the outcomes for people with schizophrenia.


Assuntos
Atividades Cotidianas/psicologia , Esquizofrenia/terapia , Psicologia do Esquizofrênico , Apoio Social , Adulto , Estudos de Coortes , Desinstitucionalização/métodos , Feminino , Habitação , Humanos , Masculino , Pessoa de Meia-Idade , Noruega/epidemiologia , Estudos Prospectivos , Estudos Retrospectivos , Esquizofrenia/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Transtornos Relacionados ao Uso de Substâncias/terapia
20.
Psychiatry Res ; 261: 481-487, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29360053

RESUMO

The prevalence of childhood trauma (CT) in schizophrenia spectrum disorders (SSDs) and substance abuse disorders (SUDs) is high. Direct comparisons of CT in these disorders are lacking, and it is not known whether there are differences in self-reported CT in SSDs as compared to SUDs. We aimed to compare the frequency, severity and types of CT in SDDs and SUDs. Patients with SSDs (n = 57) and SUDs (n = 57) were matched for age and gender. Overall levels of CT and CT subtypes were measured retrospectively by the Childhood Trauma Questionnaire Short-Form (CTQ-SF), and grouped into none/low and moderate/severe levels of CT. Group differences in CTQ-SF sum score and subscale scores, as well as differences in the severity of overall CT and CT subtypes were all non-significant. In both groups, 64.9% reported ≥ 1 subtypes of CT above cut-off. Of those who reported CT above the cut-off, 13.5% in the psychosis group reported ≥ 4 subtypes, as compared to 2.7% in the substance abuse group. We did not find statistically significant differences between SSDs and SUDs in terms of exposure to CT frequency or severity, all effect sizes were small (r < 0.15).


Assuntos
Adultos Sobreviventes de Eventos Adversos na Infância/psicologia , Transtornos Psicóticos/epidemiologia , Esquizofrenia/epidemiologia , Psicologia do Esquizofrênico , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Prevalência , Transtornos Psicóticos/psicologia , Autorrelato , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adulto Jovem
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