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1.
Contemp Clin Trials ; 133: 107326, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37652355

RESUMO

BACKGROUND: Major depressive disorder (MDD) is a highly prevalent psychiatric condition associated with significant disability, mortality and economic burden. A large proportion of MDD patients are treated in primary health care in the local community. Attentional Bias Modification (ABM) training in combination with antidepressants could be an effective treatment. Here we test the hypothesis that adding an ABM procedure to regular treatment with antidepressants in primary health care will result in further improvement of symptoms compared to treatment with antidepressants alone (treatment as usual, TAU) and as compared to an active comparison condition. METHODS: A total of 246 patients with a diagnosis of MDD will be included in this study. The study is a three-armed pragmatic randomized controlled trial comparing the efficacy of ABM as add-on to treatment with antidepressants in primary care (ABM condition) compared to standard antidepressant treatment (TAU condition). In a third group participants will complete the same schedule of intermediate assessments as the ABM condition in addition to TAU, but no ABM, thus controlling for the non-training-specific aspects of the ABM condition (Antidepressant active comparison group). DISCUSSION: The clinical outcome of this study may help develop easily accessible, low-cost treatment of depression in primary health care. Moreover, the study aims to broaden our knowledge of optimal treatment for patients with a MDD by providing adjunct treatment to facilitate recovery and long-term gain.

2.
Psychol Serv ; 20(Suppl 2): 61-67, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37261765

RESUMO

Perceived usefulness in the clinical setting is important in the implementation of novel constructs and assessments. The suicide crisis syndrome (SCS) has been proposed and validated as a theoretical framework for assessing acute suicide risk, but clinicians' perceptions of the SCS have not yet been examined. In this study, we evaluated perceived utility of the SCS across several provider locations to assess its perceived value as a clinical tool. A sample of 47 practitioners across three sites who had received education about, but no implementation of, the SCS, and a separate sample of 52 practitioners at a site that had systematically implemented the SCS, completed a survey assessing its feasibility, appropriateness, acceptability, incremental helpfulness, and overall clinical utility. In both samples, clinicians reported favorable ratings for feasibility, appropriateness, acceptability, incremental helpfulness, and overall clinical utility. In Sample 1, clinicians with previous experience using the SCS reported significantly higher ratings for all categories except incremental helpfulness than those without prior SCS use. In Sample 2, there were no significant differences in ratings between participants with or without prior use of SCS. Comparison of the two samples found no significant differences in all categories except acceptability, as those in Sample 2 showed significantly higher ratings. Regardless of implementation, clinicians reported generally favorable perceptions of the SCS, and those from the implementation sample reported significantly higher acceptability of its use. This suggests that clinicians may be supportive of the use and implementation of the SCS in clinical settings. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Suicídio , Humanos , Projetos Piloto , Tentativa de Suicídio , Ideação Suicida , Inquéritos e Questionários
3.
Nord J Psychiatry ; 77(7): 686-695, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37354486

RESUMO

BACKGROUND: Human cells and bacteria secrete extracellular vesicles (EV) which play a role in intercellular communication. EV from the host intestinal epithelium are involved in the regulation of bacterial gene expression and growth. Bacterial EV (bactEV) produced in the intestine can pass to various tissues where they deliver biomolecules to many kinds of cells, including neurons. Emerging data indicate that gut microbiota is altered in patients with psychotic disorders. We hypothesized that the amount and content of blood-borne EV from intestinal cells and bactEV in psychotic patients would differ from healthy controls. METHODS: We analyzed for human intestinal proteins by proteomics, for bactEV by metaproteomic analysis, and by measuring the level of lipopolysaccharide (LPS) in blood-borne EV from patients with psychotic disorders (n = 25), tested twice, in the acute phase of psychosis and after improvement, with age- and sex-matched healthy controls (n = 25). RESULTS: Patients with psychotic disorders had lower LPS levels in their EV compared to healthy controls (p = .027). Metaproteome analyses confirmed LPS finding and identified Firmicutes and Bacteroidetes as dominating phyla. Total amounts of human intestine proteins in EV isolated from blood was lower in patients compared to controls (p = .02). CONCLUSIONS: Our results suggest that bactEV and host intestinal EV are decreased in patients with psychosis and that this topic is worthy of further investigation given potential pathophysiological implications. Possible mechanisms involve dysregulation of the gut microbiota by host EV, altered translocation of bactEV to systemic circulation where bactEV can interact with both the brain and the immune system.


Assuntos
Vesículas Extracelulares , Transtornos Psicóticos , Humanos , Lipopolissacarídeos/metabolismo , Intestinos/microbiologia , Bactérias/metabolismo , Vesículas Extracelulares/metabolismo
4.
Nord J Psychiatry ; 77(3): 266-275, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37039324

RESUMO

PURPOSE: The aim of the present study was to investigate the psychometric validity of the Modular Assessment of Risk for Imminent Suicide (MARIS) questionnaire in relation to recent suicidal ideation and behavior among a sample of patients admitted to an acute psychiatric inpatient department in Norway. METHODS: The MARIS was completed within the first 24 h after admission by 338 patients and their clinicians. Information on recent suicidal ideation and behavior was extracted from patients' medical charts. Two out of four MARIS modules, the Suicide Trigger Scale Short-Form (STS-SF; modified version), and the Therapist Response Questionnaire Short-Form (TRQ-SF) demonstrated good internal consistency. The relationships between the STS-SF, addressing symptoms of the suicide crisis syndrome, and the TRQ-SF, exploring therapist emotional responses, and recent suicidal ideation was investigated by logistic regression analysis. RESULTS: In the logistic regression analysis including pre-selected diagnoses, age, and gender as covariates, both STS-SF and TRQ-SF showed significant associations with recent suicidal ideation (inclusive of suicidal behavior in 27% of the patients with suicidal ideation). CONCLUSION: Both the STS-SF and the TRQ-SF showed concurrent and incremental validity with regard to suicidal ideation. This is the first study showing the cross-cultural validity of the MARIS and supports its clinical utility as a suicide risk assessment tool in inpatient settings. Additionally, this study adds to the literature supporting the value of assessing clinicians' emotional responses to high risk patients.


Assuntos
Ideação Suicida , Suicídio , Humanos , Tentativa de Suicídio/psicologia , Pacientes Internados , Suicídio/psicologia , Inquéritos e Questionários , Fatores de Risco , Medição de Risco
5.
Case Rep Psychiatry ; 2023: 7989712, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36819979

RESUMO

Background: Giant cell arteritis (GCA) is an autoimmune vasculitis affecting medium- and large-sized arteries. Vascular inflammation may lead to narrowing of the arterial lumen, and acute occlusion may result in vision loss and stroke. The classical symptoms include headache, fever, and jaw claudication. However, there is an increasing recognition of atypical presentations. Case Presentation. We report a case of a 70-year-old woman presenting with fluctuating manic symptoms and confusion, in addition to headache and musculoskeletal pain. After diagnosis of GCA, treatment with corticosteroids gradually improved the somatic symptoms. Conclusion: Corticosteroids led to a temporary exacerbation of manic symptoms, which improved after 3 to 4 weeks of continuous treatment, indicating that the symptoms were most likely associated with GCA. The patient manifested with clinical features and a clinical course that has, to our knowledge, not been described or published before. Therefore, GCA may be an underdiagnosed disease in psychiatric populations and should be considered in case of atypical, new-onset psychiatric disorders in the elderly.

6.
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
7.
Biol Psychiatry ; 93(2): 187-196, 2023 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-36182530

RESUMO

BACKGROUND: Cell adhesion molecules (CAMs) orchestrate leukocyte trafficking and could link peripheral and neuroinflammation in patients with severe mental illness (SMI), by promoting inflammatory and immune-mediated responses and mediating signals across blood-brain barrier. We hypothesized that CAMs would be dysregulated in SMI and evaluated plasma levels of different vascular and neural CAMs. Dysregulated CAMs in plasma were further evaluated in vivo in leukocytes and brain tissue and in vitro in induced pluripotent stem cells. METHODS: We compared plasma soluble levels of different vascular (VCAM-1, ICAM-1, P-SEL) and neural (JAM-A, NCAD) CAMs in circulating leukocytes in a large SMI sample of schizophrenia (SCZ) spectrum disorder (n = 895) and affective disorder (n = 737) and healthy control participants (n = 1070) controlling for age, sex, body mass index, C-reactive protein, and freezer storage time. We also evaluated messenger RNA expression of ICAM1 and related genes encoding ICAM-1 receptors in leukocytes using microarray (n = 842) and in available RNA sequencing data from the CommonMind Consortium (CMC) in postmortem samples from the dorsolateral prefrontal cortex (n = 474). The regulation of soluble ICAM-1 in induced pluripotent stem cell-derived neurons and astrocytes was assessed in patients with SCZ and healthy control participants (n = 8 of each). RESULTS: Our major findings were 1) increased soluble ICAM-1 in patients with SMI compared with healthy control participants; 2) increased ITGB2 messenger RNA, encoding the beta chain of the ICAM-1 receptor, in circulating leukocytes from patients with SMI and increased prefrontal cortex messenger RNA expression of ICAM1 in SCZ; and 3) enhanced soluble ICAM-1 release in induced pluripotent stem cell-derived neurons from patients with SCZ. CONCLUSIONS: Our results support a systemic and cerebral dysregulation of soluble ICAM-1 expression in SMI and especially in patients with SCZ.


Assuntos
Molécula 1 de Adesão Intercelular , Esquizofrenia , Humanos , Doenças Neuroinflamatórias , Moléculas de Adesão Celular/metabolismo , Molécula 1 de Adesão de Célula Vascular , RNA Mensageiro/metabolismo
8.
Schizophr Bull ; 49(3): 635-645, 2023 05 03.
Artigo em Inglês | MEDLINE | ID: mdl-36462169

RESUMO

BACKGROUND AND HYPOTHESIS: Gut microbiota alterations have been reported in severe mental illness (SMI) but fewer studies have probed for signs of gut barrier disruption and inflammation. We hypothesized that gut leakage of microbial products due to intestinal inflammation could contribute to systemic inflammasome activation in SMI. STUDY DESIGN: We measured plasma levels of the chemokine CCL25 and soluble mucosal vascular addressin cell adhesion molecule-1 (sMAdCAM-1) as markers of T cell homing, adhesion and inflammation in the gut, lipopolysaccharide binding protein (LBP) and intestinal fatty acid binding protein (I-FABP) as markers of bacterial translocation and gut barrier dysfunction, in a large SMI cohort (n = 567) including schizophrenia (SCZ, n = 389) and affective disorder (AFF, n = 178), relative to healthy controls (HC, n = 418). We assessed associations with plasma IL-18 and IL-18BPa and leukocyte mRNA expression of NLRP3 and NLRC4 as markers of inflammasome activation. STUDY RESULTS: Our main findings were: (1) higher levels of sMAdCAM-1 (P = .002), I-FABP (P = 7.6E-11), CCL25 (P = 9.6E-05) and LBP (P = 2.6E-04) in SMI compared to HC in age, sex, BMI, CRP and freezer storage time adjusted analysis; (2) the highest levels of sMAdCAM-1 and CCL25 (both P = 2.6E-04) were observed in SCZ and I-FABP (P = 2.5E-10) and LBP (3) in AFF; and (3), I-FABP correlated with IL-18BPa levels and LBP correlated with NLRC4. CONCLUSIONS: Our findings support that intestinal barrier inflammation and dysfunction in SMI could contribute to systemic inflammation through inflammasome activation.


Assuntos
Inflamassomos , Esquizofrenia , Humanos , Inflamação
9.
J Clin Psychiatry ; 84(1)2022 12 12.
Artigo em Inglês | MEDLINE | ID: mdl-36516321

RESUMO

Objective: To prospectively investigate the predictive value of diagnosis, suicidal behavior, and subjectively experienced depressed mood for imminent risk of suicide death.Methods: This prospective study included a representative and diagnostically mixed sample of 7,000 acutely hospitalized psychiatric patients between May 2005 and July 2014 in a Norwegian catchment area of 400,000 inhabitants. Suicide deaths were registered at 1 and 2 weeks and at 1, 6, and 12 months following admission. Survival and hazard functions were estimated, and Cox regression was used to estimate the predictive values of suicidal ideation, suicide attempts, a diagnosis of depressive disorder, and severely depressed mood. Assessments were conducted at admission and included ICD-10 diagnosis, clinical interview in the form of the Health of the Nation Outcome Scales, and qualitative assessments of suicidal ideation and suicide attempts during the past week.Results: During 1-year follow-up, 101 patients (1.4%) died by suicide, of whom almost 70% were men. Only severely depressed mood, including inappropriate self-blame and guilt, predicted suicide within the first week after admission (hazard ratio [HR] = 7.3; 95% confidence interval [CI], 1.4-37.1; P = .01). Suicidal ideation predicted death by suicide at 2 weeks (HR = 3.8; 95% CI, 1.2-12.8; P = .02) and all follow-up time points after, whereas a recent suicide attempt predicted suicide from the 1-month follow-up (HR = 7.3; 95% CI, 2.2-23.7; P < .001) onward.Conclusions: We recommend thoroughly examining severity of depressed mood during assessment of imminent suicide risk.


Assuntos
Pacientes Internados , Tentativa de Suicídio , Masculino , Humanos , Feminino , Estudos Prospectivos , Tentativa de Suicídio/psicologia , Ideação Suicida , Modelos de Riscos Proporcionais , Fatores de Risco
10.
Tidsskr Nor Laegeforen ; 142(15)2022 10 25.
Artigo em Norueguês | MEDLINE | ID: mdl-36286562
11.
Tidsskr Nor Laegeforen ; 142(13)2022 09 27.
Artigo em Norueguês | MEDLINE | ID: mdl-36164791
13.
BMC Med Ethics ; 23(1): 60, 2022 06 16.
Artigo em Inglês | MEDLINE | ID: mdl-35710552

RESUMO

BACKGROUND: The aim of the present survey was to investigate newly discharged hospital patients' opinions on secondary use of their hospital data and biospecimens within the context of health research in general and, more specifically, on genetic research, data sharing across borders and cooperation with the health industry. METHODS: A paper questionnaire was sent to 1049 consecutive newly discharged hospital patients. RESULTS: The vast majority of the respondents preferred to be informed (passive consent) or to receive no notification at all for secondary research on their health data and biospecimens (88% and 91% for data and biospecimens respectively). The rest wanted to be asked for active consent. The same trend applied for the other aspects also. 81% of respondents were positive towards genetic research without active consent. 95% were positive towards cooperating with the health industry, and 90% were positive towards data sharing. CONCLUSIONS: These results suggest that hospital patients generally are very positive to secondary research and support the concept of opting out rather than opting in.


Assuntos
Disseminação de Informação , Consentimento Livre e Esclarecido , Humanos , Inquéritos e Questionários
14.
BMC Psychiatry ; 22(1): 286, 2022 04 21.
Artigo em Inglês | MEDLINE | ID: mdl-35449039

RESUMO

BACKGROUND: The use of standard screening methods could improve the detection rate of unhealthy alcohol use in patients admitted to psychiatric acute and emergency departments. The aim of the present study was to investigate the ability of the alcohol biomarker phosphatidylethanol (PEth) to identify patients with high levels of alcohol consumption prior to admission. METHODS: The data were prospectively collected at admittance to an acute psychiatric department in the period January 2016 to June 2017. A blood sample for the analysis of PEth was available from 177 patients. We compared the PEth concentrations with the Alcohol Use Disorders Identification Test (AUDIT) scores during the hospital stay, and psychiatric diagnoses at discharge. RESULTS: A total of 45.8% of the patients had a PEth concentration ≥ 0.03 µmol/L, indicating significant alcohol consumption. AUDIT scores consistent with unhealthy alcohol use were present in 51.7%. There was a significant positive correlation between PEth concentrations and AUDIT scores (r = 0.631, p < 0.001). PEth was above the detection limit of 0.03 µmol/L in 19% of those reporting an average daily intake of zero alcohol units per day during the last week before admission. PEth concentrations were significantly higher among those with an alcohol diagnosis than among those without such a diagnosis (0.82 µmol/L vs. 0.09 µmol/L, p = 0.001). CONCLUSION: PEth provides supplementary information on recent alcohol consumption in a psychiatric population and would be particularly helpful in patients unable or unwilling to give such information at admission.


Assuntos
Alcoolismo , Consumo de Bebidas Alcoólicas/epidemiologia , Alcoolismo/psicologia , Biomarcadores , Glicerofosfolipídeos , Humanos , Autorrelato
15.
Nord J Psychiatry ; 76(8): 602-609, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35200088

RESUMO

PURPOSE: Cardiometabolic disease in patients with severe mental illness is a major cause of shortened life expectancy. There is sparse evidence of real-world clinical risk prevention practice. We investigated levels of assessments of cardiometabolic risk factors and risk management interventions in patients with severe mental illness in the Norwegian mental health service according to an acknowledged international standard. METHODS: We collected data from 264 patients residing in six country-wide health trusts for: (a) assessments of cardiometabolic risk and (b) assessments of levels of risk reducing interventions. Logistic regressions were employed to investigate associations between risk and interventions. RESULTS: Complete assessments of all cardiometabolic risk variables were performed in 50% of the participants and 88% thereof had risk levels requiring intervention according to the standard. Smoking cessation advice was provided to 45% of daily smokers and 4% were referred to an intervention program. Obesity was identified in 62% and was associated with lifestyle interventions. Reassessment of psychotropic medication was done in 28% of the obese patients. Women with obesity were less likely to receive dietary advice, and use of clozapine or olanzapine reduced the chances for patients with obesity of getting weight reducing interventions. CONCLUSIONS: Nearly nine out of the ten participants were identified as being at cardiometabolic high risk and only half of the participants were adequately screened. Women with obesity and patients using antipsychotics with higher levels of cardiometabolic side effects had fewer adequate interventions. The findings underscore the need for standardized recommendations for identification and provision of cardiometabolic risk reducing interventions in all patients with severe mental illness.


Assuntos
Doenças Cardiovasculares , Transtornos Mentais , Humanos , Feminino , Fatores de Risco Cardiometabólico , Saúde Mental , Transtornos Mentais/epidemiologia , Transtornos Mentais/terapia , Transtornos Mentais/psicologia , Obesidade/epidemiologia , Obesidade/terapia , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Fatores de Risco
16.
Death Stud ; 46(8): 1823-1831, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33586630

RESUMO

The study explored how common non-disclosure of suicidal ideation is in a sample of adult psychiatric inpatients (N = 171) plus associated patient characteristics. A large percentage (51.5%) withheld some information on suicidal ideation during admission. In multivariable analyses, correlates of non-disclosure included a diagnosis of emotionally unstable personality disorder, low satisfaction with stay, and symptoms of the suicide crisis syndrome. In univariate analyses, therapists' emotional response to the patient was also a correlate. Findings indicate that among acute psychiatric inpatients, non-disclosure of suicidal ideation is quite common, requiring awareness from clinicians relying on this parameter in suicide risk assessments.


Assuntos
Ideação Suicida , Suicídio , Adulto , Humanos , Pacientes Internados/psicologia , Fatores de Risco , Suicídio/psicologia , Tentativa de Suicídio/psicologia
17.
BMC Psychiatry ; 21(1): 626, 2021 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-34911471

RESUMO

BACKGROUND: It is well known that patients with epilepsy have a high rate of psychiatric comorbidity. However, studies exploring epilepsy in psychiatric cohorts are scarce. The aim of this study was to examine the prevalence of seizure disorders in acute psychiatric inpatients. METHODS: This is a cross-sectional study performed in a catchment-area based acute psychiatric department. All patients (age > 18) admitted during September 2011 - March 2012 were eligible for inclusion. Consenting patients were screened for a life-time history of epilepsy or seizures using self-reported questionnaire data and diagnostic codes for epilepsy in hospital and National registries. Patients scoring positive to one or more of these screening criteria underwent a thorough diagnostic validation (chart review), and the seizure disorders were classified as epilepsy, acute symptomatic seizures and/or psychogenic non-epileptic seizures according to current definitions. RESULTS: A total of 380 out of 591 (64.3%) consecutively admitted patients consented to participate in the study. Eighty-nine patients (23.4%) scored positive to one or more screening criteria. Fifteen (3.9%) were classified with epilepsy, 21 (5.5%) with acute symptomatic seizures and 9 (2.4%) with psychogenic non-epileptic seizures. CONCLUSIONS: This is the first study to report on the prevalence of seizure disorders in acute psychiatric inpatients. The life-time prevalence of epilepsy in this cohort of patients is five - six times as high as reports in the general population. These findings underscore the need for the clinical psychiatrist to have comprehensive knowledge on the interface between epileptology and psychiatry. TRIALS REGISTRATION: ClinicalTrials.gov identifier NCT01415323 .


Assuntos
Epilepsia , Pacientes Internados , Adulto , Comorbidade , Estudos Transversais , Epilepsia/epidemiologia , Humanos , Pessoa de Meia-Idade , Convulsões/epidemiologia
18.
Front Psychiatry ; 11: 816, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33013492

RESUMO

The primary aim of the study was to explore the post discharge standardized mortality ratio of patients from an acute psychiatric department in Norway. The secondary aims were to explore if the standardized mortality ratio is still increasing and to examine the causes of death in the defined population. We conducted a 5-year prospective study among patients admitted to an acute psychiatric department with catchment area responsibilities. A total of 380 patients were included in the study, and the number and causes of deaths were obtained from the Norwegian Cause of Death Registry. Excess mortality was found for the patient group. The standardized mortality ratio for all causes of death was 6.7 (95% CI, 4.6-8.8). The study finds an increased standardized mortality ratio relative to a previous corresponding study in Norway, and the suicide risk was especially elevated the first 2 years after discharge.

19.
PeerJ ; 8: e9714, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32995075

RESUMO

Extracellular vesicles (EVs) are cell-derived structures that transport proteins, lipids and nucleic acids between cells, thereby affecting the phenotype of the recipient cell. As the content of EVs reflects the status of the originating cell, EVs can have potential as biomarkers. Identifying EVs, including their cells of origin and their cargo, may provide insights in the pathophysiology of psychosis. Here, we present an in-depth analysis and proteomics of EVs from peripheral blood in patients (n = 25) during and after the acute phase of psychosis. Concentration and protein content of EVs in psychotic patients were twofold higher than in 25 age- and sex-matched healthy controls (p < 0.001 for both concentration and protein content), and the diameter of EVs was larger in patients (p = 0.02). Properties of EVs did not differ significantly in blood sampled during and after the acute psychotic episode. Proteomic analyses on isolated EVs from individual patients revealed 1,853 proteins, whereof 45 were brain-elevated proteins. Of these, five proteins involved in regulation of plasticity of glutamatergic synapses were significantly different in psychotic patients compared to controls; neurogranin (NRGN), neuron-specific calcium-binding protein hippocalcin (HPCA), kalirin (KALRN), beta-adducin (ADD2) and ankyrin-2 (ANK2). To summarize, our results show that peripheral EVs in psychotic patients are different from those in healthy controls and point at alterations on the glutamatergic system. We suggest that EVs allow investigation of blood-borne brain-originating biological material and that their role as biomarkers in patients with psychotic disorders is worthy of further exploration.

20.
PLoS One ; 14(9): e0222242, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31509578

RESUMO

BACKGROUND: Different psychiatric diagnostic groups have been reported to have cytokine levels deviating from healthy controls. In acute clinical settings however, the specific challenging symptoms and signs are more important than a diagnostic group. Thus, exploration of cytokines and immune activity and their role in specific symptoms is important. Reports in this field so far are sparse. OBJECTIVE: In the present study, we aimed to examine the association between immune activity measured as levels of cytokines and agitation (independent of diagnostic group) in patients admitted to an acute psychiatric inpatient department. METHODS: A total of 316 patients admitted to an acute psychiatric inpatient department were included. Thirty-nine patients with psychosis were subject to subgroup analyses. Agitation was assessed by the Positive and Negative Syndrome Scale, Excitement Component (PANSS-EC). Based on PANNS-EC patients were stratified into two groups: 67 agitated patients and 249 non-agitated patients. Serum concentrations of the following immune markers were measured: interleukin (IL) -1ß, IL-4, IL-6, IL-10, tumor necrosis factor (TNF) -α, interferon (IFN) -γ and transforming growth factor (TGF) -ß. RESULTS: Serum levels of TNF-α were significantly higher in patients with agitation compared to those without, both when all patients were included in the analyses (p = 0.004) and in the psychosis group (p = 0.027). After correcting for multiple testing, only the findings in the total population remained significant. CONCLUSIONS: Our findings suggest an association between TNF-α and agitation in an acute psychiatric population. A similar trend was reproduced to the psychosis subgroup. This suggests that agitation might be an independent entity associated with cytokines across different diagnostic groups.


Assuntos
Ansiedade/imunologia , Transtornos Psicóticos/imunologia , Fator de Necrose Tumoral alfa/metabolismo , Adulto , Ansiedade/psicologia , Biomarcadores/sangue , Estudos Transversais , Citocinas/análise , Citocinas/metabolismo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Noruega , Agitação Psicomotora/diagnóstico , Agitação Psicomotora/metabolismo , Transtornos Psicóticos/psicologia , Fator de Necrose Tumoral alfa/análise , Fator de Necrose Tumoral alfa/sangue
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