Neuromelanin-Sensitive MRI as Candidate Marker for Treatment Resistance in First-Episode Schizophrenia

OBJECTIVE

Markers for treatment resistance in schizophrenia are needed to reduce delays in effective treatment. Nigrostriatal hyperdopaminergic function plays a critical role in the pathology of schizophrenia, yet antipsychotic nonresponders do not show increased dopamine function. Neuromelanin-sensitive MRI (NM-MRI), which indirectly measures dopamine function in the substantia nigra, has potential as a noninvasive marker for nonresponders. Increased NM-MRI signal has been shown in psychosis, but has not yet been assessed in nonresponders. In this study, the authors investigated whether nonresponders show lower NM-MRI signal than responders.

METHODS

NM-MRI scans were acquired in 79 patients with first-episode psychosis and 20 matched healthy control subjects. Treatment response was assessed at a 6-month follow-up. An a priori voxel-wise analysis within the substantia nigra tested the relation between NM-MRI signal and treatment response in patients.

RESULTS

Fifteen patients were classified as nonresponders and 47 patients as responders. Seventeen patients were excluded, primarily because of medication nonadherence or change in diagnosis. Voxel-wise analysis revealed 297 significant voxels in the ventral tier of the substantia nigra that were negatively associated with treatment response. Nonresponders and healthy control subjects had significantly lower NM-MRI signal than responders. Receiver operating characteristic curve analysis showed that NM-MRI signal separated nonresponders with areas under the curve between 0.62 and 0.85. In addition, NM-MRI signal in patients did not change over 6 months.

CONCLUSIONS

These findings provide further evidence for dopaminergic differences between medication responders and nonresponders and support the potential of NM-MRI as a clinically applicable marker for treatment resistance in schizophrenia.

The relationship between bullying and symptom presentation in first-episode psychosis

Multiple recent studies have indicated that adverse psycho-traumatic experiences are particularly significant, if not the most significant, among the environmental factors that participate in the aetiology of schizophrenic spectrum disorders. The prevalence of bullying in the adolescent population has increased dramatically compared to earlier reports. This may be related to the recent development of communication technology and the use of social media, which have expanded the means by which bullying can be practiced. The present study aims to investigate the association between bullying victimisation and psychotic symptoms in First-Episode Psychosis (FEP) patients, hypothesising that patients who have a bullying history may have increased psychotic symptoms and a more unfavourable early trajectory after treatment as usual compared to patients who do not have a bullying history. Research data were collected from a sample of men and women of the Greek general population aged between 16 and 45 (N=225) who experienced a FEP in the context of the Athens First-Episode Psychosis (FEP) Study. The assessment of bullying was performed using the Retrospective Bullying Questionnaire (RBQ). Assessment of positive and negative psychotic symptoms and general psychopathology was performed using the corresponding subscales of the Positive and Negative Syndrome Scale (PANSS) at baseline and after 4 weeks of treatment as usual. Clinical remission was assessed based on the baseline and follow-up values of the PANSS and on Andreasen's symptomatic criteria. Methodologically, Pearson's chi-square test was used to compare the history of bullying between men and women, while linear and logistic regression models were used to check the correlations between history of bullying and symptom severity at baseline and 4-week follow-up, as well as the correlation between history of bullying and remission. The prevalence of bullying history in our sample of patients (N:225) with a FEP was 51.4% (114/225). Bullying was recorded in our study participants with equal frequency in women and men. According to the analysis results, the patients who had experienced bullying did not present at baseline with significantly increased psychotic symptoms compared to the patients who did not have a history of bullying. In addition, bullying was not associated with reduced remission according to Andreasen's criteria. However, the patients who had experienced bullying were found to have significantly increased negative symptoms (B=1.66; SE=0.70; p=0.018) and increased PANSS total score (B=4.81; SE=2.34; p=0.041) at 4-week follow-up. Our results highlight the persistence of negative and overall symptoms as an impact of bullying on the development of the FEP and align with studies that support the consideration of a history of bullying during both the diagnostic and therapeutic processes.

20-Year Prospective, Sequential Follow-Up Study of Heterogeneity in Associations of Duration of Untreated Psychosis With Symptoms, Functioning, and Quality of Life Following First-Episode Psychosis

OBJECTIVE

Determining the extent to which relationships between duration of untreated psychosis (DUP) and outcome endure longitudinally across the lifetime course of psychotic illness requires prospective, systematic studies of epidemiologically representative incidence cohorts across decades. Transience, persistence, or heterogeneity in associations between DUP and distinct outcome domains are yet to be investigated over such time frames.

METHODS

Prospective, sequential follow-up studies of an epidemiologically representative first-episode psychosis incidence cohort in Ireland were conducted at 6 months and 4, 8, 12, and 20 years (N=171). Linear mixed-model analyses were applied to determine whether prospective associations of DUP with symptoms, functioning, and quality of life were consistent or varied across psychotic illness trajectory over a 20-year period. Evaluations included time, DUP quartile, and DUP quartile-by-time interaction effects.

RESULTS

Prospective, sequential follow-ups showed positive and negative symptoms, function, and quality of life to exhibit distinct trajectories of improvement in relation to shorter DUP. Despite heterogeneity in course and relationship to premorbid features, associations between shorter DUP and greater improvement were still evident 20 years after the first psychotic episode. Across the long-term course of psychotic illness, trajectories of association between shorter DUP and better outcome differed between domains of psychopathology, functionality, and quality of life. Nevertheless, such associations with shorter DUP were sustained for at least 20 years.

CONCLUSIONS

These profiles indicate that while associations between DUP and long-term outcome can vary according to the domain of outcome, they are sustained across decades in a manner that could not be fully accounted for in terms of premorbid features or lead-time bias.

Sustained Effect of a Brief Video in Reducing Public Stigma Toward Individuals With Psychosis: A Randomized Controlled Trial of Young Adults

OBJECTIVE

Public stigma is a barrier to care and increases the duration of untreated psychosis among individuals with first-episode psychosis. The authors recently demonstrated the efficacy of a 90-second social contact-based video intervention in reducing such stigma. That proof-of-concept study was the first to employ so brief an antistigma intervention in a sample of young adults. The authors now present a randomized controlled replication study with baseline, postintervention, and 30-day follow-up assessments. The authors aimed to replicate their previous findings and to show a persisting benefit for the video intervention.

METHODS

Using a crowdsourcing platform (Amazon Mechanical Turk), the authors recruited and assigned 1,055 participants ages 18-30 years to a brief video-based intervention, to a written vignette intervention containing the same material, or to a nonintervention control condition. In the 90-second video, a 22-year-old African American woman with schizophrenia humanized the illness through her emotional description of living a meaningful and productive life.

RESULTS

A three-by-three group-by-time multivariate analysis of variance showed a significant group-by-time interaction for the total scores of all five stigma-related domains: social distance, stereotyping, separateness, social restriction, and perceived recovery. Post hoc pairwise tests showed greater reductions in the video group compared with the vignette and control groups at the postintervention and 30-day follow-up assessments, while the vignette group differed from the control group at the postintervention assessment but not at the 30-day assessment.

CONCLUSIONS

This randomized controlled study replicated and strengthened the authors' earlier findings, further showing month-long sustained stigma reduction in the social contact-based video intervention arm. A 90-second video sufficed to humanize schizophrenia and reduce stigma. Further research should examine longer-term sustainability, assess changes in behavior, and determine optimal effective video length.

Impact of the first Covid-19 pandemic wave on first episode psychosis in Milan, italy

The ongoing Corona Virus Disease 2019 (COVID-19) pandemic appears to increase risk for mental illness, either directly due to inflammation caused by the virus or indirectly due to related psychosocial stress, resulting in the development of both anxious-depressive and psychotic symptoms. The purpose of the present study was to assess the frequency and characteristics of all patients with First Episodes Psychosis (FEP) without COVID-19 infection hospitalized in the first four months since lockdown in Milan. We recruited sixty-two patients hospitalized between March 8 to July 8, 2020 versus those first  hospitalized in the same period in 2019. The two subgroups were compared for sociodemographic variables and clinical characteristics of the episodes. Patients with FEP in 2020 were significantly older than patients with FEP in 2021, and presented with significantly less substances abuse. Interestingly, patients presenting with FEP in 2020 were significantly older than patients with FEP in 2019. These data are compatible with the greater vulnerability to stressful factors during the pandemic, as well as with the greater concern regarding a possible COVID-19 infection producing brain damage causing the FEP.

Estimated Staff Time Effort, Costs, and Medicaid Revenues for Coordinated Specialty Care Clinics Serving Clients With First-Episode Psychosis

As coordinated specialty care for first-episode psychosis is implemented nationally, questions arise regarding financial sustainability. To address this, New York State undertook a time study in which 13 coordinated specialty care sites reported all activities provided to 75 randomly selected Medicaid clients with first-episode psychosis over a 2-week period. The average estimated cost was $1,375 per client per month, yet under optimal billing conditions, estimated revenues were only $662 per client per month, or 48% of the costs. These results underscore the need for continued subsidies and novel payment schemes for coordinated specialty care.

Digital Trajectories to Care in First-Episode Psychosis

OBJECTIVE

The emphasis on reducing the duration of untreated psychosis (DUP) has highlighted complex barriers to accessing appropriate services. Internet and social media use by individuals with first-episode psychosis (FEP) was examined to explore how these platforms might be used to facilitate treatment initiation.

METHODS

Participants ages 15-35 were interviewed with the Pathways to Care for Psychosis Questionnaire, an 81-item instrument designed to explore online activity during symptom emergence.

RESULTS

Of 112 participants, 90% used the Internet and social media daily. The Internet was listed as the most used resource (62%) for information while symptoms were emerging. A minority (19%) shared concerns via social media, and 76% responded favorably to the possibility of receiving online mental health support.

CONCLUSIONS

The Internet and social media were part of daily life for participants with FEP. Activity continued throughout the DUP, offering the prospect of earlier intervention. Participants expressed positive attitudes toward Internet-based outreach and engagement efforts.

Effectiveness of Early Psychosis Intervention: Comparison of Service Users and Nonusers in Population-Based Health Administrative Data

OBJECTIVE

Early psychosis intervention (EPI) programs improve clinical and functional outcomes for people with first-episode psychosis. Less is known about the impact of these programs on the larger health care system. The authors sought to compare indicators of health service use, self-harm, suicide, and mortality between people with first-episode psychosis who were using EPI services and a propensity-matched group of concurrent control subjects who were not accessing EPI services.

METHOD

A retrospective cohort of incident cases of nonaffective psychosis in the catchment area of the Prevention and Early Intervention Program for Psychoses in London, Ontario, between 1997 and 2013 was constructed using health administrative data. This cohort was linked to primary data from the same program to identify people who used EPI services. Outcomes for people who used EPI services and those who did not were compared using Cox proportional hazards models.

RESULTS

People who used EPI services had substantially lower rates of all-cause mortality in the 2-year period after EPI program admission (hazard ratio=0.24, 95% CI=0.11-0.53), although a significant difference in self-harm (hazard ratio=0.86, 95% CI=0.18-4.24) and suicide (hazard ratio=0.73, 95% CI=0.29-1.80) between the two groups was not observed. Those who used EPI services also had lower rates of emergency department presentation (hazard ratio=0.71, 95% CI=0.60-0.83) but higher rates of hospitalization (hazard ratio=1.42, 95% CI=1.18-1.71). These benefits were not observed after 2 years, when EPI care is typically stepped down to medical management.

CONCLUSIONS

People with first-episode psychosis who used EPI services had mortality rates that were four times lower than those with first-episode psychosis who did not use these services, as well as better outcomes across several health care system indicators. These findings support the effectiveness of EPI services for the treatment of first-episode psychosis in the larger context of the overall health care system.

A New Machine Learning Framework for Understanding the Link Between Cannabis Use and First-Episode Psychosis

Lately, several studies started to investigate the existence of links between cannabis use and psychotic disorders. This work proposes a refined Machine Learning framework for understanding the links between cannabis use and 1st episode psychosis. The novel framework concerns extracting predictive patterns from clinical data using optimised and post-processed models based on Gaussian Processes, Support Vector Machines, and Neural Networks algorithms. The cannabis use attributes' predictive power is investigated, and we demonstrate statistically and with ROC analysis that their presence in the dataset enhances the prediction performance of the models with respect to models built on data without these specific attributes.

Incomes and Outcomes: Social Security Disability Benefits in First-Episode Psychosis

OBJECTIVE

Social Security Administration (SSA) disability benefits are an important source of income for people with psychoses and confer eligibility for health insurance. The authors examined the impact of coordinated specialty care on receipt of such benefits in first-episode psychosis, along with the correlates and consequences of receiving them.

METHOD

The Recovery After an Initial Schizophrenia Episode-Early Treatment Program (RAISE-ETP) study, a 34-site cluster-randomized trial, compared NAVIGATE, a coordinated specialty care program, to usual community care over 2 years. Receipt of SSA benefits and clinical outcomes were assessed at program entry and every 6 months for 2 years. Piecewise regression analysis was used to identify relative change in outcome trajectories after receipt of disability benefits.

RESULTS

Among 399 RAISE-ETP participants, 36 (9%) were receiving SSA disability benefits at baseline; of the remainder, 124 (34.1%) obtained benefits during the 2-year study period. The NAVIGATE intervention improved quality of life, symptoms, and employment but did not significantly reduce the likelihood of receiving SSA disability benefits. Obtaining benefits was predicted by more severe psychotic symptoms and greater dysfunction and was followed by increased total income but fewer days of employment, reduced motivation (e.g., sense of purpose, greater anhedonia), and fewer days of intoxication.

CONCLUSIONS

A 2-year coordinated specialty care intervention did not reduce receipt of SSA disability benefits. There were some advantages for those who obtained SSA disability benefits over the 2-year treatment period, but there were also some unintended adverse consequences. Providing income supports without impeding recovery remains an important policy challenge.

The Relative Importance of Family History, Gender, Mode of Onset, and Age at Onsetin Predicting Clinical Features of First-Episode Psychotic Disorders

OBJECTIVE

Family history of psychosis, gender, mode of onset, and age at onset are considered prognostic factors important to clinicians evaluating first-episode psychosis; yet, clinicians have little guidance as to how these four factors differentially predict early-course substance abuse, symptomatology, and functioning. We conducted a "head-to-head comparison" of these four factors regarding their associations with key clinical features at initial hospitalization. We also assessed potential interactions between gender and family history with regard to age at onset of psychosis and symptom severity.

METHODS

Consecutively admitted first-episode patients (n=334) were evaluated in two studies that rigorously assessed a number of early-course variables. Associations among variables of interest were examined using Pearson correlations, χ² tests, Student's t-tests, and 2×2 factorial analyses of variance.

RESULTS

Substance (nicotine, alcohol, and cannabis) abuse and positive symptom severity were predicted only by male gender. Negative symptom severity and global functioning impairments were predicted by earlier age at onset of psychosis. General psychopathology symptom severity was predicted by both mode of onset and age at onset. Interaction effects were not observed with regard to gender and family history in predicting age at onset or symptom severity.

CONCLUSIONS

The four prognostic features have differential associations with substance abuse, domains of symptom severity, and global functioning. Gender and age at onset of psychosis appear to be more predictive of clinical features at the time of initial evaluation (and thus presumably longer term outcomes) than the presence of a family history of psychosis and a more gradual mode of onset.

Clinical Correlates of Initial Treatment Disengagement in First-Episode Psychosis

AIM

Early engagement in care is thought to reduce disabling social losses related to the duration of untreated psychosis (DUP), such as school dropout, homelessness, and incarceration, which contribute to chronic disability. Early-intervention services that promote recovery will not be effective if eligible persons drop out of treatment after an initial hospitalization for a psychotic disorder. We had the unique opportunity to examine the treatment disengagement rate of patients with early psychosis after an initial hospitalization.

METHODS

In a predominantly male, African-American, and socioeconomically disadvantaged group of 33 participants with first-episode psychosis assessed at initial hospitalization and six months after discharge, we compared clinical characteristics (medication adherence attitudes and behaviors, knowledge about schizophrenia, insight, symptom severity, and persistence of alcohol and drug use) among those who disengaged and people who engaged in care.

RESULTS

More than half (18, 54.5%) attended <3 outpatient appointments in the six months after hospital discharge and, of those, nearly all (15, 83.3%) attended no outpatient appointments. Disengaged people were much less adherent to medications in the past month and six months, and scored lower on medication adherence attitudes, knowledge about psychosis, and insight. They had greater positive symptom severity and a higher likelihood of continuing drug use. Clinical Relevancy: Initial treatment disengagement is very common among young people with first-episode psychosis and is associated with poorer clinical status. More research is needed on the causes of disengagement during this critical period and ways to improve initial treatment engagement among people with first-episode psychosis.

Relatives׳ illness attributions mediate the association of expressed emotion with early psychosis symptoms and functioning

The mechanisms underlying the association between expressed emotion (EE) and the prognosis in early psychosis are still not well understood. Based on the attributional model, this study investigated the association of criticism and Emotional Over-Involvement (EOI) with symptoms and functioning in At-Risk Mental State (ARMS) and First-Episode Psychosis (FEP) patients, and whether these associations were mediated by relatives׳ attributions of control and blame. Forty-four patients (20 ARMS and 24 FEP) and their relatives were included. Findings indicated that relatives׳ criticism was associated with positive, negative, and general symptoms. EOI was related to negative and general symptoms. Both indices were related with impaired functioning. Most of the relations between EE indices and illness severity were mediated by relatives׳ attributions of blame toward the patient. Relatives׳ self-blaming attributions and attributions of control over the disorder by either relatives or patients were not associated with patients׳ variables or EE. Findings highlight the importance of family emotional environment in the early stages of psychosis, as well as the mediating role that relatives׳ beliefs can exert in those relationships. Family interventions aimed to assist relatives to change attributions that blame patient should be included in clinical protocols in order to prevent the entrenchment of high-EE.

Psychiatric morbidity, functioning and quality of life in young people at clinical high risk for psychosis

OBJECTIVE

Recent studies suggest that psychotic-like experiences may also act as markers for non-psychotic psychiatric disorders, which may indicate that the focus of research in individuals at high risk (HR) for psychosis needs updating. In this study we thoroughly examined the clinical and functional characteristics of a consecutive cohort of young people at HR for psychosis and compared them to a matched sample of healthy volunteers.

METHOD

Between February 2010 and September 2012 60 help-seeking HR individuals, aged 16-35, were recruited from CAMEO Early Intervention in Psychosis Service, Cambridgeshire, UK. Forty-five age- and gender-matched healthy volunteers were randomly recruited from the same geographical area. Sociodemographic, psychiatric morbidity, functioning and quality of life measures were compared between both groups.

RESULTS

HR individuals suffered a wide range of DSM-IV psychiatric disorders, mainly within the affective and anxiety diagnostic spectra. In comparison to healthy volunteers, young people at HR reported more suicidal ideation/intention, depressive and anxiety symptoms and presented with remarkably poor functioning and quality of life.

CONCLUSION

The presence of co-morbid moderate or severe depressive and anxiety symptoms was common in our sample of young people at enhanced risk for psychosis. A HR mental state may be associated not only with an increased risk for psychosis, but also other psychiatric disorders. Our findings may have implications for the future implementation of therapeutic interventions that this population could benefit from.