The prevention of schizophrenia

Diagnostic model development for schizophrenia based on peripheral blood mononuclear cell subtype-specific expression of metabolic markers

A significant proportion of the personal and economic burden of schizophrenia can be attributed to the late diagnosis or misdiagnosis of the disorder. A novel, objective diagnostic approaches could facilitate the early detection and treatment of schizophrenia and improve patient outcomes. In the present study, we aimed to identify robust schizophrenia-specific blood biomarkers, with the goal of developing an accurate diagnostic model. The levels of selected serum and peripheral blood mononuclear cell (PBMC) markers relevant to metabolic and immune function were measured in healthy controls (n = 26) and recent-onset schizophrenia patients (n = 36) using multiplexed immunoassays and flow cytometry. Analysis of covariance revealed significant upregulation of insulin receptor (IR) and fatty acid translocase (CD36) levels in T helper cells (F = 10.75, P = 0.002, Q = 0.024 and F = 21.58, P = 2.8 × 10^-5, Q = 0.0004, respectively), as well as downregulation of glucose transporter 1 (GLUT1) expression in monocytes (F = 21.46, P = 2.9 × 10^-5, Q = 0.0004). The most robust predictors, monocyte GLUT1 and T helper cell CD36, were used to develop a diagnostic model, which showed a leave-one-out cross-validated area under the receiver operating characteristic curve (AUC) of 0.78 (95% CI: 0.66-0.92). The diagnostic model was validated in two independent datasets. The model was able to distinguish first-onset, drug-naïve schizophrenia patients (n = 34) from healthy controls (n = 39) with an AUC of 0.75 (95% CI: 0.64-0.86), and also differentiated schizophrenia patients (n = 22) from patients with other neuropsychiatric conditions, including bipolar disorder, major depressive disorder and autism spectrum disorder (n = 68), with an AUC of 0.83 (95% CI: 0.75-0.92). These findings indicate that PBMC-derived biomarkers have the potential to support an accurate and objective differential diagnosis of schizophrenia.

The sexuality and sexual experiences of forensic mental health patients: An integrative review of the literature

Introduction

Sexuality is an integral aspect of the human experience that defines an individual. Robust research, substantiated by the World Health Organization, demonstrates that healthy sexuality improves mental health and quality of life. Despite this level of global advocacy and clinical evidence, sexuality and sexual health as determinants of health have been largely overlooked in the mental healthcare of patients being treated under the requirements of a forensic order (forensic patients). In this review, the authors have evaluated the literature related to the sexual development, sexual health, sexual knowledge and risks, sexual experiences, sexual behavior and sexual desires of forensic patients to inform policy and clinical practice. Furthermore, the review explored how forensic patients' sexual healthcare needs are managed within a forensic mental healthcare framework. The paper concludes with recommendations for service providers to ensure that sexual health and sexuality are components of mental health policy frameworks and clinical care.

Methods

An integrative review was utilized to summarize empirical and theoretical literature to provide a greater comprehensive understanding of the sexuality and sexual experiences of forensic patients. This included identifying original qualitative, quantitative, or mixed-method research, case reports, case series and published doctoral thesis pertaining to the research topic.

Results

Twenty-one articles were selected for review. We grouped the review findings into three main themes: 1) Forensic patient themes, 2) Forensic mental health staff themes and 3) Forensic mental health organization themes. The review demonstrated scant information on the sexual healthcare needs of forensic patients or how health services manage these needs while the patient is in a hospital or reintegrating into the community.

Conclusion

There is a dearth of evidence-based, individualized or group approaches which clinicians can utilize to assist forensic patients to achieve a healthy sexual life and it is recommended that such services be developed. Before that however, it is essential to have a clear understanding of the sexual healthcare needs of forensic patients to identify areas where this vulnerable population can be supported in achieving optimal sexual health. Urgent changes to clinical assessment are required to incorporate sexual healthcare as a component of routine mental healthcare.

Perceived mental illness stigma among family and friends of young people with depression and its role in help-seeking: a qualitative inquiry

BACKGROUND

Depressive disorders are a serious public health concern. Left untreated, further clinical distress and impairment in important life domains may arise. Yet, the treatment gap remains large. Prior research has shown that individuals with depressive disorders prefer seeking help from informal sources such as family and friends ahead of formal sources. However, this preference has its disadvantages such as experiencing actual, perceived and internalized stigmatizing responses from them which may delay or deter help-seeking. This paper aimed to determine the role of perceived stigma among family and friends in an individual's help-seeking behavior.

METHODS

Data were collected using semi-structured interviews with patients with depressive disorders from a tertiary psychiatric hospital in Singapore to capture individuals' self-reported experience with depression and stigmatization among family and friends. Interviews were audio recorded and transcribed verbatim. Data of 33 young adults (mean age = 26 years, SD =4.6; 18 female, 15 male) were analyzed using thematic analysis.

RESULTS

In all, four broad themes were developed: (1) absence of support, (2) provision of unhelpful support, (3) preference for non-disclosure, and (4) opposition towards formal help-seeking. Lack of awareness of depression and perpetuation of stigma manifests as barriers towards help-seeking in the form of absence of support and provision of unhelpful support which subsequently leads to a preference for non-disclosure, as well as opposition by family and friends towards formal help-seeking.

CONCLUSIONS

Data from this study can contribute to the development of public health programs aimed at improving awareness and support from family and friends and facilitating earlier help-seeking among young people with depressive disorders.

Early magnetic resonance imaging biomarkers of schizophrenia spectrum disorders: Toward a fetal imaging perspective

There is mounting evidence to implicate the intrauterine environment as the initial pathogenic stage for neuropsychiatric disease. Recent developments in magnetic resonance imaging technology are making a multimodal analysis of the fetal central nervous system a reality, allowing analysis of structural and functional parameters. Exposures to a range of pertinent risk factors whether preconception or in utero can now be indexed using imaging techniques within the fetus' physiological environment. This approach may determine the first "hit" required for diseases that do not become clinically manifest until adulthood, and which only have subtle clinical markers during childhood and adolescence. A robust characterization of a "multi-hit" hypothesis may necessitate a longitudinal birth cohort; within this investigative paradigm, the full range of genetic and environmental risk factors can be assessed for their impact on the early developing brain. This will lay the foundation for the identification of novel biomarkers and the ability to devise methods for early risk stratification and disease prevention. However, these early markers must be followed over time: first, to account for neural plasticity, and second, to assess the effects of postnatal exposures that continue to drive the individual toward disease. We explore these issues using the schizophrenia spectrum disorders as an illustrative paradigm. However, given the potential richness of fetal magnetic resonance imaging, and the likely overlap of biomarkers, these concepts may extend to a range of neuropsychiatric conditions.

Endocannabinoid system in trauma and psychosis: distant guardian of mental stability

Central endocannabinoid system (eCBS) is a neuromodulatory system that inhibits potentially harmful, excessive synaptic activation. Endocannabinoid receptors are abundant among brain structures pivotal in different mental disorders development (for example, hippocampus, amygdala, medial-prefrontal cortex, hypothalamus). Here, we review eCBS function in etiology of psychosis, emphasizing its role in dealing with environmental pressures such as traumatic life events. Moreover, we explore eCBS as a guard against hypothalamic-pituitary-adrenal axis over-activation, and discuss its possible role in etiology of different psychopathologies. Additionally, we review eCBS function in creating adaptive behavioral patterns, as we explore its involvement in the memory formation process, extinction learning and emotional response. We discuss eCBS in the context of possible biomarkers of trauma, and in preclinical psychiatric conditions, such as at-risk mental states and clinical high risk states for psychosis. Finally, we describe the role of eCBS in the cannabinoid self-medication-theory and extinction learning.

Computerized Adaptive Testing for Schizotypal Personality Disorder: Detecting Individuals at Risk

As schizotypal personality disorder (SPD) increasingly prevails in the general population, a rapid and comprehensive measurement instrument is imperative to screen individuals at risk for SPD. To address this issue, we aimed to develop a computerized adaptive testing for SPD (CAT-SPD) using a non-clinical Chinese sample (N = 999), consisting of a calibration sample (N₁ = 497) and a validation sample (N₂ = 502). The item pool of SPD was constructed from several widely used SPD scales and statistical analyses based on the item response theory (IRT) via a calibration sample using a graded response model (GRM). Finally, 90 items, which measured at least one symptom of diagnostic criteria of SPD in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) and had local independence, good item fit, high slope, and no differential item functioning (DIF), composed the final item pool for the CAT-SPD. In addition, a simulated CAT was conducted in an independent validation sample to assess the performance of the CAT-SPD. Results showed that the CAT-SPD not only had acceptable reliability, validity, and predictive utility but also had shorter but efficient assessment of SPD which can save significant time and reduce the test burden of individuals with less information loss.

A qualitative study exploring how Practitioners within Early Intervention in Psychosis Services engage with Service Users' experiences of voice hearing?

WHAT IS KNOWN ON THE SUBJECT?: The experience of hearing distressing voices is commonly reported by service users with a diagnosis of first-episode psychosis, but their access to formal conversations about voices in the form of psychological therapies can be limited. Service users within Early Intervention in Psychosis (EIP) services can benefit from informal opportunities to talk about their voice hearing experiences. However, they can be reluctant to engage with these conversations. Little is known about the experiences of EIP practitioners as they try to engage service users in conversations about their voices. WHAT DOES THE PAPER ADD TO EXISTING KNOWLEDGE?: Despite EIP Services specializing in the treatment of the symptoms of psychosis such as voice hearing, practitioners can still be reluctant to initiate and continue informal conversations about voices. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: EIP practitioners may benefit from the introduction of interview guides and brief interventions to assist them with the initiation and continuation of conversations about voices. ABSTRACT: Introduction Hearing voices is a common and distressing symptom of first-episode psychosis. Formal and informal conversations about voices are helpful, but service users within Early Intervention in Psychosis (EIP) Services can be reluctant to discuss their voice hearing experiences. There is currently no literature that explores the experiences of EIP practitioners as they try to facilitate conversations about distressing voices. Aim/Question A qualitative methodology was used to investigate how EIP practitioners work with service users who hear voices. Ten practitioners were interviewed, and interviews were analysed using template analysis. Results Two themes that offer novel insights are presented: "starting a conversation about voices" and "continuing the conversation about voices." Discussion Starting and continuing a conversation about voices was considered important but not all practitioners were confident in this respect. The initiation and continuation of these conversations may need to be systematically supported. Implications for practice To support the initiation of informal conversations, a standardized interview guide for voice hearing could be introduced and systematically utilized. The continuation of these conversations could be supported by practitioners being given the opportunity to receive training in and the opportunity to deliver brief symptom-specific therapies for distressing voices.

Basic Symptoms Are Associated With Age in Patients With a Clinical High-Risk State for Psychosis: Results From the PRONIA Study

In community studies, both attenuated psychotic symptoms (APS) and basic symptoms (BS) were more frequent but less clinically relevant in children and adolescents compared to adults. In doing so, they displayed differential age thresholds that were around age 16 for APS, around age 18 for perceptive BS, and within the early twenties for cognitive BS. Only the age effect has previously been studied and replicated in clinical samples for APS. Thus, we examined the reported age effect on and age thresholds of 14 criteria-relevant BS in a patient sample at clinical-high risk of psychosis (N = 261, age 15-40 yrs.), recruited within the European multicenter PRONIA-study. BS and the BS criteria, "Cognitive Disturbances" (COGDIS) and "Cognitive-perceptive BS" (COPER), were assessed with the "Schizophrenia Proneness Instrument, Adult version" (SPI-A). Using logistic regressions, prevalence rates of perceptive and cognitive BS, and of COGDIS and COPER, as well as the impact of social and role functioning on the association between age and BS were studied in three age groups (15-18 years, 19-23 years, 24-40 years). Most patients (91.2%) reported any BS, 55.9% any perceptive and 87.4% any cognitive BS. Furthermore, 56.3% met COGDIS and 80.5% COPER. Not exhibiting the reported differential age thresholds, both perceptive and cognitive BS, and, at trend level only, COPER were less prevalent in the oldest age group (24-40 years); COGDIS was most frequent in the youngest group (15-18 years). Functional deficits did not better explain the association with age, particularly in perceptive BS and cognitive BS meeting the frequency requirement of BS criteria. Our findings broadly confirmed an age threshold in BS and, thus, the earlier assumed link between presence of BS and brain maturation processes. Yet, age thresholds of perceptive and cognitive BS did not differ. This lack of differential age thresholds might be due to more pronounced the brain abnormalities in this clinical sample compared to earlier community samples. These might have also shown in more frequently occurring and persistent BS that, however, also resulted from a sampling toward these, i.e., toward COGDIS. Future studies should address the neurobiological basis of CHR criteria in relation to age.

Development of an implementation guide to facilitate the roll-out of early intervention services for psychosis

AIM

Our aim was to develop an implementation guide that was informed by an analysis of context-specific barriers and enablers, behaviour change theory, as well as evidence about the effects of implementation interventions, for the establishment and scaling up of an early intervention model for psychosis (called Early Psychosis Prevention and Intervention Centre (EPPIC)).

METHODS

We used a systematic approach involving four steps. First, the target behaviours of the EPPIC model for implementation were specified. Second, a consultation was undertaken to explore the barriers and enablers to undertaking these priority minimum standard clinical behaviours. Third, an implementation strategy that included a range of behaviour change techniques tailored to address the identified barriers was developed. Finally, a tool to assess whether those implementing the EPPIC model maintained fidelity to the implementation strategy was designed.

RESULTS

We identified a range of barriers that could act to dilute the core components of the EPPIC model and compromise its implementation. An implementation strategy using theory and evidence-based strategies for behaviour change was designed to address these barriers.

CONCLUSIONS

The process we used in the development of the implementation strategy provided a unique opportunity to consider the essential areas to cover, how to make information easily understandable and accessible while noting the complexity of issues involved in not only implementation, but also the scaling up of the EPPIC model for services.

Recent advances in the prevention of mental disorders

PURPOSE

Prevention of mental disorders is a rapidly growing area of research with substantial potential benefits for population health. This paper reviews the evidence base for prevention of depression, anxiety, and schizophrenia.

METHODS

We synthesized evidence from recent systematic reviews and meta-analyses published between 2013 and 2018 on prevention of depression, anxiety, and first-episode psychosis. We included reviews of randomized controlled trials testing psychological, psychosocial, and pharmacological preventive interventions.

RESULTS

There is good evidence that depression and anxiety can be prevented, although effect sizes are generally small. Indicated prevention of first-episode psychosis appears promising. Economic evaluations provide support for prevention of depression, anxiety, and first-episode psychosis, but more studies evaluating costs and benefits are needed to strengthen the knowledge base, particularly regarding long-term outcomes, which include chronicity of the prevented disorder, as well as later occurence of important comorbid mental and physical health problems. Promising areas for further development include internet- or computer-based prevention strategies, mindfulness-based interventions, and integration of prevention programs within occupational settings.

CONCLUSIONS

A number of interventions to prevent mental disorders are efficacious. While intervention effect sizes are generally small for prevention of depression and anxiety, they may nonetheless be of significant population benefit. Using the growing evidence base to inform policy and dissemination of evidence-based prevention programs is critical for moving prevention science into real-world settings.

"That little doorway where I could suddenly start shouting out": Barriers and enablers to the disclosure of distressing voices

Hearing distressing voices is a key feature of psychosis. The time between voice onset and disclosure may be crucial as voices can grow in complexity. This study aimed to investigate barriers and enablers to early voice disclosure. In total, 20 voice hearers were interviewed, and Thematic Analysis was used to identify themes. Beliefs about the effect of disclosure on self and others acted as a barrier and enabler to voices being discussed. Voice hearing awareness should be increased among young people, the public, and care services. To support earlier disclosure, measures should be taken to increase skill among those likely to be the recipients of disclosure.

Ethical considerations in preventive interventions for bipolar disorder

AIM

Early intervention and prevention of serious mental disorders such as bipolar disorder has the promise of decreasing the burden associated with these disorders. With increasing early and preventive intervention efforts among cohorts such as those with a familial risk for bipolar disorder, there is a need to examine the associated ethical concerns. The aim of this review was to examine the ethical issues underpinning the clinical research on pre-onset identification and preventive interventions for bipolar disorder.

METHODS

We undertook a PubMed search updated to November 2014 incorporating search terms such as bipolar, mania, hypomania, ethic*(truncated), early intervention, prevention, genetic and family.

RESULTS

Fifty-six articles that were identified by this method as well as other relevant articles were examined within a framework of ethical principles including beneficence, non-maleficence, respect for autonomy and justice. The primary risks associated with research and clinical interventions include stigma and labelling, especially among familial high-risk youth. Side effects from interventions are another concern. The benefits of preventive or early interventions were in the amelioration of symptoms as well as the possibility of minimizing disability, cognitive impairment and progression of the illness. Supporting the autonomy of individuals and improving access to stigma-free care may help moderate the potential challenges associated with the risks of interventions.

CONCLUSIONS

Concerns about the risks of early identification and pre-onset interventions should be balanced against the potential benefits, the individuals' right to choice and by improving availability of services that balance such dilemmas.

Pupillometer-based neurofeedback cognitive training to improve processing speed and social functioning in individuals at clinical high risk for psychosis

OBJECTIVE

Among individuals at clinical high risk (CHR) for psychosis, processing speed (PS) has been related to social and role functioning regardless of conversion to schizophrenia. This information processing dysfunction is a gateway to broader behavioral deficits such as difficulty executing social behaviors. We examined the feasibility of improving information processing relevant to social situations in CHR, including its sustainability at 2-month follow-up, and its association with concurrent social function.

METHOD

This was a double-blind RCT in which 62 CHR participants were randomized to Processing Speed Training (PST) or an active control matched for training format and the same dose and duration of treatment. PST is a tablet-based program that uses pupillometry-based neurofeedback to continually adjust training parameters for an optimal neurocognitive load and to improve visual scanning efficiency by inhibiting selection of nonessential targets and discriminating figure-ground details.

RESULTS

The PST group showed faster motoric and nonmotoric PS at post training and 2-month follow-up. At 2 month follow-up, the PST group reported better overall social adjustment. Changes in PS from baseline to 2 months were correlated with overall social adjustment and social avoidance in the entire sample.

CONCLUSIONS AND IMPLICATIONS FOR PRACTICE

This is the first study to test focal neurofeedback-based cognitive training for PS deficits in the putatively prodromal phase of schizophrenia to address associated social morbidity. Targeting PS appears to be a promising pathway to decreasing comorbidity and mitigating a risk factor for psychosis. (PsycINFO Database Record

Demographic correlates of attenuated positive psychotic symptoms

It is now well established that the utilization of standardized clinical criteria can enhance prediction of psychosis. These criteria are primarily concerned with the presence and severity of attenuated positive symptoms. Because these symptom criteria are used to derive algorithms for designating clinical high risk (CHR) status and for maximizing prediction of psychosis risk, it is important to know whether the symptom ratings vary as a function of demographic factors that have previously been linked with symptoms in diagnosed psychotic patients. Using a sample of 356 CHR individuals from the NAPLS-II multi-site study, we examined the relation of three sex, age, and educational level, with the severity of attenuated positive symptom scores from the Scale of Prodromal Symptoms (SOPS). Demographic factors accounted for little of the variance in symptom ratings (5-6%). Older CHR individuals manifested more severe suspiciousness, and female CHR participants reported more unusual perceptual experiences than male participants. Contrary to prediction, higher educational level was associated with more severe ratings of unusual thought content, but less severe perceptual abnormalities. Overall, sex, age and education were modestly related to unusual thought content and perceptual abnormalities, only, suggesting minimal implication for designating CHR status and predicting psychosis-risk.

Early intervention in psychosis: obvious, effective, overdue

Early intervention for potentially serious disorder is a fundamental feature of healthcare across the spectrum of physical illness. It has been a major factor in the reductions in morbidity and mortality that have been achieved in some of the non-communicable diseases, notably cancer and cardiovascular disease. Over the past two decades, an international collaborative effort has been mounted to build the evidence and the capacity for early intervention in the psychotic disorders, notably schizophrenia, where for so long deep pessimism had reigned. The origins and rapid development of early intervention in psychosis are described from a personal and Australian perspective. This uniquely evidence-informed, evidence-building and cost-effective reform provides a blueprint and launch pad to radically change the wider landscape of mental health care and dissolve many of the barriers that have constrained progress for so long.

The efficacy of targeted health agents education to reduce the duration of untreated psychosis in a rural population

The duration of untreated psychosis (DUP) is a key determinant in the severity of symptoms in patients with schizophrenia. DUP is a modifiable factor that if reduced can improve patient outcome and treatment response. We sought to decrease DUP in rural Argentina by instituting annual training of local health agents to better identify signs of mental illness and offer earlier intervention. DUP was estimated using Schedules of Clinical Assessment in Neuropsychiatry (SCAN). Ongoing training was correlated with a reduction in DUP. Reducing DUP through better screening can decrease the psychosocial burden of disease and improve the trajectory of psychosis.

Towards indicated prevention of psychosis: using probabilistic assessments of transition risk in psychosis prodrome

The concept of indicated prevention has proliferated in psychiatry, and accumulating evidence suggests that it may indeed be possible to prevent or delay the onset of a first episode of psychosis though adequate interventions in individuals deemed at clinical high risk (CHR) for such an event. One challenge undermining these efforts is the relatively poor predictive accuracy of clinical assessments used in practice for CHR individuals, often leading to diagnostic and therapeutic uncertainty reflected in clinical guidelines promoting a 'watch and wait' approach to CHR patients. Using data from published studies, and employing predictive models based on the odds-ratio form of Bayes' rule, we simulated scenarios where clinical interview, neurocognitive testing, structural magnetic resonance imaging and electrophysiology are part of the initial assessment process of a CHR individual (extended diagnostic approach). Our findings indicate that for most at-risk patients, at least three of these assessments are necessary to arrive at a clinically meaningful differentiation into high- intermediate-, and low-risk groups. In particular, patients with equivocal results in the initial assessments require additional diagnostic testing to produce an accurate risk profile forming part of the comprehensive initial assessment. The findings may inform future research into reliable identification and personalized therapeutic targeting of CHR patients, to prevent transition to full-blown psychosis.

Universal prevention of schizophrenia and surrogate endpoints at population level

Despite significant progresses in our knowledge of the risk factors for schizophrenia, we still are several steps short of implementing effective prevention strategies. Universal prevention strategies have several theoretical advantages but their implementation has been limited to date by their costs and lack of methods to assess their efficiency. To overcome this limitation, we suggest, based on research from therapeutic trials at individual level, the use of surrogate endpoints (SEs) at population level. We further suggest that subclinical measures of psychosis at population level are good SEs candidates for assessing universal measures for schizophrenia prevention.

Duration of untreated illness (DUI) and schizophrenia sub-types: a collaborative study between the universities of Milan and Moscow

BACKGROUND

Several studies show an association between a long duration of untreated illness (DUI) and poor outcome in schizophrenic patients. DUI, in turn, may be influenced by different variables including specific illness-related factors as well as access to local psychiatric services.

AIMS

The purposes of the present study were to detect differences in terms of DUI among schizophrenics coming from different geographic areas and to evaluate differences in DUI across diagnostic sub-types.

METHOD

One hundred and twenty-five (125) schizophrenic patients of the Psychiatric Clinic of Milan (n = 51) and Moscow (n = 74) were enrolled. SCID-I was administered to all patients and information about DUI was obtained by consulting clinical charts and health system databases, and by means of clinical interviews with patients and their relatives. DUI was defined as the time between the onset of illness and the administration of the first antipsychotic drug. One-way analyses of variance (ANOVAs) were performed to find eventual differences in terms of DUI across diagnostic sub-types.

RESULTS

Italian patients showed a longer DUI (M = 4.14 years, SD = 4.95) than Russians (M = 1.16 years, SD = 1.43) (F = 24.03, p < .001). DUI was found to be longer in paranoid schizophrenics (M = 3.47 years, SD = 4.19) compared to catatonic patients (M = 0.96 years, SD = 0.94) (F = 3.56, p = .016).

CONCLUSIONS

The results of the present study suggest that the different schizophrenic sub-types may differ in terms of DUI, likely due to different clinical severity and social functioning. Studies with larger samples are needed to confirm the data of the present study.

Development of a computerized adaptive test for Schizotypy assessment

BACKGROUND

Schizotypal traits in adolescents from the general population represent the behavioral expression of liability for psychotic disorders. Schizotypy assessment in this sector of population has advanced considerably in the last few years; however, it is necessary to incorporate recent advances in psychological and educational measurement.

OBJECTIVE

The main goal of this study was to develop a Computerized Adaptive Test (CAT) to evaluate schizotypy through "The Oviedo Questionnaire for Schizotypy Assessment" (ESQUIZO-Q), in non-clinical adolescents.

METHODS

The final sample consisted of 3,056 participants, 1,469 males, with a mean age of 15.9 years (SD=1.2).

RESULTS

The results indicated that the ESQUIZO-Q scores presented adequate psychometric properties under both Classical Test Theory and Item Response Theory. The Information Function estimated using the Gradual Response Model indicated that the item pool effectively assesses schizotypy at the high end of the latent trait. The correlation between the CAT total scores and the paper-and-pencil test was 0.92. The mean number of presented items in the CAT with the standard error fixed at ≤ 0.30 was of 34 items.

CONCLUSION

The CAT showed adequate psychometric properties for schizotypy assessment in the general adolescent population. The ESQUIZO-Q adaptive version could be used as a screening method for the detection of adolescents at risk for psychosis in both educational and mental health settings.

Help-seeking and pathways to care in the early stages of psychosis

PURPOSE

Delay in the treatment of a first psychotic episode can have a negative influence on the future course of the disease. In this context, it is important to examine pathways to care to understand factors contributing to delay in access to adequate care.

METHODS

Using the Basel Interview for Psychosis, we examined the help-seeking behaviour of 61 individuals with an at-risk mental state for psychosis and 37 patients with a first episode of psychosis in a low threshold health care system as part of the Basel early detection of psychosis study.

RESULTS

The median duration of untreated illness was 3.4 years, of untreated psychosis 12 months. Eighty-six percent of all individuals sought help of some kind before reaching our specialised early detection outpatient clinic, with a mean number of help-seeking contacts of 1.5 prior to referral. The most frequent first help-seeking contacts were family members or relatives n = 24 (26.7 %), close friends n = 17 (17.9 %), psychiatrists in private practice n = 13 (14.4 %) or general practitioners n = 11 (12.2 %). Most patients consulted other health professionals in the early course of the illness before reaching our specialised service; help-seeking with non-medical institutions was rare. Women had more help-seeking contacts than men before contact with our early detection clinic.

CONCLUSIONS

Family, close friends and medical professionals play an important role in help-seeking leading to specialised psychiatric care. Men seek help less often; specific strategies for encouraging young, at-risk men to seek help should be developed.

A systematic review of help-seeking interventions for depression, anxiety and general psychological distress

BACKGROUND

Depression and anxiety are treatable disorders, yet many people do not seek professional help. Interventions designed to improve help-seeking attitudes and increase help-seeking intentions and behaviour have been evaluated in recent times. However, there have been no systematic reviews of the efficacy or effectiveness of these interventions in promoting help-seeking. Therefore, this paper reports a systematic review of published randomised controlled trials targeting help-seeking attitudes, intentions or behaviours for depression, anxiety, and general psychological distress.

METHODS

Studies were identified through searches of PubMed, PsycInfo, and the Cochrane database in November 2011. Studies were included if they included a randomised controlled trial of at least one intervention targeting help-seeking for depression or anxiety or general psychological distress, and contained extractable data on help-seeking attitudes or intentions or behaviour. Studies were excluded if they focused on problems or conditions other than the target (e.g., substance use, eating disorder).

RESULTS

Six published studies of randomised controlled trials investigating eight different interventions for help-seeking were identified. The majority of trials targeted young adults. Mental health literacy content was effective (d = .12 to .53) in improving help-seeking attitudes in the majority of studies at post-intervention, but had no effect on help-seeking behaviour (d = -.01, .02). There was less evidence for other intervention types such as efforts to destigmatise or provide help-seeking source information.

CONCLUSIONS

Mental health literacy interventions are a promising method for promoting positive help-seeking attitudes, but there is no evidence that it leads to help-seeking behaviour. Further research investigating the effects of interventions on attitudes, intentions, and behaviour is required.

Palliative models of care for later stages of mental disorder: maximizing recovery, maintaining hope, and building morale

BACKGROUND

The concept of staging of disease in psychiatry has developed over the past years. A neglected component of this model pertains to people in the advanced stages of a mental illness, who remain symptomatic and functionally impaired despite treatment. These patients are often high service utilizers, receiving complex multimodal treatments where the balance of risk and benefit shifts perceptibly. In this paper, we argue the need to adopt 'palliative' models of care for some individuals, and consider changing the therapeutic goals to follow care pathways similar to those used in other chronic and refractory medical illnesses.

METHOD

Data was sourced by a literature search using Medline and a hand search of scientific journals. Relevant articles were selected.

RESULTS

Clinical staging can help us better define subgroups of patients who will benefit from different goals and treatment. In the most advanced stage group, we find patients with persistent symptoms and treatment resistance. In these situations, it may be preferable to follow some of the principles of palliative care, which include the setting of attainable goals, reduction of side-effects, limited symptom control, targeting identified psychological and social problems, and attempting to attain the best quality of life for these patients and their families.

CONCLUSIONS

It is in the interest of those in the advanced phases of a disorder that clinicians acknowledge the limitations of treatment and actively attempt to plan treatment utilizing alternate models. It is essential to be clear that such approaches do not equate to the abandonment of care, but rather to the reconceptualizing of feasible and personalized treatment goals, a rebalancing of the risks and benefits of intervention, the management of illness behaviour, and the approaches that allow the patient to live gainfully within their limitations.

Movement abnormalities and psychotic-like experiences in childhood: markers of developing schizophrenia?

BACKGROUND

Both involuntary dyskinetic movements and psychotic-like experiences (PLEs) are reported to be antecedents of schizophrenia that may reflect dysfunctional dopaminergic activity in the striatum. The present study compared dyskinetic movement abnormalities displayed by children with multiple antecedents of schizophrenia (ASz), including speech and/or motor developmental lags or problems, internalising/externalising problems in the clinical range, and PLEs, with those displayed by children with no antecedents (noASz).

METHOD

The sample included 21 ASz and 31 noASz children, aged 9-12 years old. None had taken psychotropic medication or had relatives with psychosis. The antecedents of schizophrenia were assessed using questionnaires completed by children and caregivers. A trained rater, blind to group status, coded dyskinetic movement abnormalities using a validated tool from videotapes of interviews with the children.

RESULTS

ASz children reported, on average, 'certain experience' of 2.5 PLEs, while noASz children, by definition, reported none. The ASz children, as compared with noASz children, displayed significantly more dyskinetic movement abnormalities in total, and in the facial and the upper-body regions, after controlling for sex and age. Receiver operator characteristics analyses yielded high area under the curve values for the total score (0.94), facial score (0.91) and upper-body score (0.86), indicating that these scores distinguished between the ASz and noASz children with great accuracy.

CONCLUSIONS

Brief questionnaires identified children with multiple antecedents of schizophrenia who displayed significantly more involuntary dyskinetic movement abnormalities than children without antecedents. The presence of PLEs and dyskinesias could reflect early disruption of striatal dopamine circuits.

A systematic meta-review grading the evidence for non-genetic risk factors and putative antecedents of schizophrenia

INTRODUCTION

Identifying the relative strength of evidence associated with non-genetic risk factors and putative antecedents of schizophrenia will guide research and may inform the design of early detection and intervention strategies.

AIMS

To present and quality assess current evidence for non-genetic risk factors and putative antecedents derived from well-conducted systematic reviews that report pooled data.

METHOD

Medline, Embase, CINAHL, Current Contents, and PsycINFO databases were searched systematically, and supplemented by hand searching. Review reporting quality was assessed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist, review methodology was assessed using the Assessment of Multiple Systematic Reviews (AMSTAR) checklist, and evidence quality was assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.

RESULTS

Twenty-four reviews met inclusion criteria. The risk factors with the highest quality evidence, reporting medium effect sizes, were advanced paternal age, obstetric complications, and cannabis use. The strongest evidence among the putative antecedents was identified for motor dysfunction and low IQ.

CONCLUSIONS

More research is required that applies sound methodological practices, taking into consideration specificity for schizophrenia and possible confounding factors, to robustly identify the non-genetic risk factors and putative antecedents of schizophrenia.

Psychosocial risk factors for inconsistent condom use in young people with first episode psychosis

There is evidence of high rates of unprotected sex among young people with first episode psychosis compared to their peers. Little research has explored factors associated with condom use in this population. The current study examined the association between previously identified psychosocial risk factors and condom use in young people with early psychosis and their peers. Sixty-seven sexually active young people with first episode psychosis and 48 sexually active control participants matched on a number of sociodemographic factors completed a self-report survey. Increased probability of inconsistent condom use was associated with clinical status, younger age, unemployment, and the absence of peer support for condom use. Psychological distress, self-esteem, social support, substance use, and impulsivity were not associated with condom use. The results suggest that sexual risk-reduction interventions for young people with psychosis should target peer norms, particularly among those who are younger and unemployed.

Life and treatment goals of individuals hospitalized for first-episode nonaffective psychosis

First-episode psychosis typically emerges during late adolescence or young adulthood, interrupting achievement of crucial educational, occupational, and social milestones. Recovery-oriented approaches to treatment may be particularly applicable to this critical phase of the illness, but more research is needed on the life and treatment goals of individuals at this stage. Open-ended questions were used to elicit life and treatment goals from a sample of 100 people hospitalized for first-episode psychosis in an urban, public-sector setting in the southeastern United States. Employment, education, relationships, housing, health, and transportation were the most frequently stated life goals. When asked about treatment goals, participants' responses included wanting medication management, reducing troubling symptoms, a desire to simply be well, engaging in counseling, and attending to their physical health. In response to queries about specific services, most indicated a desire for both vocational and educational services, as well as assistance with symptoms and drug abuse. These findings are interpreted and discussed in light of emerging or recently advanced treatment paradigms-recovery and empowerment, shared decision-making, community and social reintegration, and phase-specific psychosocial treatment. Integration of these paradigms would likely promote recovery-oriented tailoring of early psychosocial interventions, such as supported employment and supported education, for first-episode psychosis.

IQ trajectory, cognitive reserve, and clinical outcome following a first episode of psychosis: a 3-year longitudinal study

Comparison of current and estimated premorbid IQ in schizophrenia suggests that there are subgroups with low IQ, deteriorated IQ (DIQ), or preserved IQ and that this is established by psychosis onset. There are no controlled studies examining the trajectory of these IQ subgroups longitudinally or their relationship with clinical and social outcomes. Of 129 individuals with first-episode schizophrenia or schizoaffective disorder, 25% showed stable low IQ, 31% showed stable IQ in the average/high range, and 44% demonstrated intellectual deterioration by 10 points or more. Patients in the low and deteriorated groups were equally impaired on tests of memory and executive function compared with the preserved average/high-IQ group and controls and showed more negative and disorganization symptoms than the preserved average/high-IQ group. Sixty patients and 27 controls were assessed again 1 and 3 years later. There was no evidence that those with IQ deterioration at baseline continued on a declining cognitive trajectory or that those with preserved average/high IQ experienced subsequent IQ decline. The low IQ group showed no change in IQ, whereas both the DIQ and the preserved IQ groups improved. However, the rate of improvement of these 2 subgroups was no greater than that of the healthy controls, suggesting that this reflected practice effects. Both the low and the deteriorated groups had longer index admissions, more core negative symptoms, and worse occupational outcomes at 3 years. These data suggest that following psychosis onset, IQ is stable and that it is IQ at psychosis onset rather than premorbid IQ predicts a more severe illness.

Effect of an education program on improving knowledge of schizophrenia among parents of junior and senior high school students in Japan

BACKGROUND

Early detection and intervention in schizophrenia are important in improving quality of life after treatment and are major issues in psychiatric care. Therefore, it is necessary to increase knowledge of schizophrenia among the general public. Among parents of junior and senior high school students in Japan, we compared rates of correct answers for items on knowledge of schizophrenia and ability to discriminate this psychosis from other disorders on questionnaires given before and after viewing a web-based education program.

METHODS

Questionnaires were distributed to 2,690 parents. The program was developed to help parents obtain a basic understanding of schizophrenia and to emphasize the necessity of early detection.

RESULTS

Before the program, the rate of correct answers was 77% for items concerning basic knowledge of schizophrenia, 47% for "discrimination of schizophrenia symptoms," and 30% for "discrimination of prodromal symptoms." The program resulted in an improvement in basic knowledge of schizophrenia, discrimination of schizophrenia symptoms, and discrimination of prodromal symptoms (P < 0.001 for all).

CONCLUSIONS

Our web-based education program was useful in helping parents acquire a basic knowledge of schizophrenia and discriminate correctly the symptoms of schizophrenia.

Transition to adulthood: the critical period for pre-emptive, disease-modifying care for schizophrenia and related disorders

There is an urgent need and a global opportunity to rethink not only the dominant research paradigms in etiological research but also to invest in less constrained strategies which cut across the existing diagnostic silos to seek out common risk factors, late as well as early neurodevelopmental processes, pathophysiologies, and novel treatment strategies. The high-quality research presented in this special issue of Schizophrenia Bulletin makes a compelling case for such a rethink. While there is still a genuine disconnect between our understanding of the complex and dramatic brain changes that occur during the transition to adulthood and the concurrent surge in incidence of mental ill-health, there is no doubt that a much more serious focus on the perionset stage of clinical disorders in young people with their rapidly evolving brains, social environments, and life trajectories could be extremely productive. Research access to these early stages of illness would be catalyzed by the widespread construction of engaging stigma-free portals and clinical scaffolding appropriate for young people in the 21st century. The latter are urgently required to supersede traditional models of care, which have served both patients and families so poorly, and equally have failed to unlock a deeper understanding of the origins and progression of potentially serious mental disorders.

Reducing sexually-transmitted infection risk in young people with first-episode psychosis

There is emerging evidence that young people with first-episode psychosis are at greater risk of sexually-transmitted infections (STI) than their peers. Theoretical constructs central to behavioural change theories, broadly defined as sexual health-related knowledge, attitudes, and beliefs, have guided most sexual risk-reduction interventions in other at-risk populations. The role of these constructs in the sexual risk behaviour of young people with early psychosis remains unknown. A convenience sample of 67 young people with first-episode psychosis and 48 healthy controls matched on a number of sociodemographic characteristics was recruited. Participants completed a survey assessing their sexual behaviour and sexual health-related knowledge, attitudes, and beliefs. Group differences and the role of these constructs in the condom-use behaviour of these young people were examined. Although some differences emerged, group similarities were prominent. Inconsistent condom use was predicted by clinical status, unemployment, and the absence of peer support for condom use. These results support previous findings that young people with psychosis have greater needs for STI prevention due to increased rates of unprotected sex. Risk-reduction interventions that target peer influence are important. Inquiry into a broader range of psychosocial factors could further our understanding of STI infection risk in early psychosis.

Associations between psychotic-like symptoms and inattention/hyperactivity symptoms

OBJECTIVE

Our aim was to study the association between psychotic-like symptoms and inattention/hyperactivity symptoms in a general adolescent population.

SUBJECTS AND METHODS

The sample is based on a population-based prospective mother-child birth cohort, the Northern Finland Birth Cohort 1986. In the 15-16-year follow-up survey, the adolescents completed the Youth Self-Report questionnaire as well as the PROD-Screen questionnaire that addressed prodromal symptoms of psychosis. Meanwhile, their parents assessed inattention and hyperactive symptoms of their offspring by completing the Strengths and Weaknesses of ADHD Symptoms and Normal Behaviors questionnaire (N = 5,318). The cross-sectional associations between psychotic-like symptoms and inattention/hyperactivity symptoms were studied with logistic regression models.

RESULTS

The association between negative psychotic-like symptoms and inattention symptoms, especially the dreamy type of inattention symptoms (e.g., difficulties in organizing tasks, losing things, being forgetful), was statistically significant for both genders. Psychotic-like symptoms, however, were not associated with hyperactivity symptoms.

CONCLUSIONS

The present findings demonstrate that an association between psychotic-like symptoms and attentional dysfunction, which has been found in clinical samples, is also present in a general adolescent population.

An evidence map of interventions across premorbid, ultra-high risk and first episode phases of psychosis

The onset of psychotic disorders peaks in adolescence and young adulthood. Early interventions during the ultra-high risk and first episode stages of illness are increasingly emphasised given the greater opportunities for clinical and functional recovery during these early phases. As a large volume of such research now exists, there is a need to summarise the extent and distribution of research to ascertain what is, and is not yet known about the evidence-base for preventing and treating early psychotic disorders.

METHODS

An 'evidence mapping' methodology was used to systematically search for intervention studies published post-1980 in English (participant mean age: 6-30 years). Studies were restricted to systematic reviews, meta-analyses and controlled trials. The Cochrane Central Register of Controlled Trials, PSYCHINFO, MEDLINE and EMBASE were searched. Studies were screened according to these criteria and mapped on pre-defined study characteristics, including intervention types, stage of illness and type of study.

RESULTS

Fifty-eight controlled trials and 8 systematic reviews were identified. The majority pertained to the first episode stage of illness (n=37), indicated prevention (n=9) and relapse prevention (n=9). Most studies involved biological (n=32) or psychological (n=17) interventions. Antipsychotic medication (n=27) and cognitive behavioural therapy (CBT; n=10) were the most common intervention modalities.

CONCLUSIONS

The extant research is dominated by trials examining intervention for first episode psychosis with antipsychotic medication. Biological interventions other than antipsychotics are sparse for patients with established psychotic disorders. For at-risk populations, there is a need for high-quality prevention studies of pharmaceutical treatments (e.g. neuroprotective agents) and a broad range of psychosocial interventions, including, but not limited to, CBT.

Schizophrenia, "just the facts" 5. Treatment and prevention. Past, present, and future

The introduction of second-generation antipsychotics and cognitive therapies for schizophrenia over the past two decades generated considerable optimism about possibilities for recovery. To what extent have these developments resulted in better outcomes for affected individuals? What is the current state of our science and how might we address the many unmet needs in the prevention and treatment of schizophrenia? We trace the evolution of various treatments for schizophrenia and summarize current knowledge about available pharmacological and psychosocial treatments. We consider the widely prevalent efficacy-effectiveness gap in the application of available treatments and note the significant variability in individual treatment response and outcome. We outline an individualized treatment approach which emphasizes careful monitoring and collaborative decision-making in the context of ongoing benefit-risk assessment. We note that the evolution of both pharmacological and psychosocial treatments thus far has been based principally on serendipity and intuition. In view of our improved understanding of the etiology and pathophysiology of schizophrenia, there is an opportunity to develop prevention strategies and treatments based on this enhanced knowledge. In this context, we discuss potential psychopathological treatment targets and enumerate current pharmacological and psychosocial development efforts directed at them. Considering the stages of schizophrenic illness, we review approaches to prevent progression from the pre-symptomatic high-risk to the prodrome to the initial psychotic phase to chronicity. In view of the heterogeneity of risk factors, we summarize approaches towards targeted prevention. We evaluate the potential contribution of pharmacogenomics and other biological markers in optimizing individual treatment and outcome in the future.

Research in people with psychosis risk syndrome: a review of the current evidence and future directions

After decades of research, schizophrenia and related psychotic disorders are still among the most debilitating disorders in medicine. The chronic illness course in most individuals, greater treatment responsiveness during the first episode, progressive gray matter decline during early disease stages, and retrospective accounts of 'prodromal' or early illness signs and symptoms formed the basis for research on the psychosis risk syndrome (PRS), known variably as 'clinical high risk' (CHR), or 'ultra-high risk' (UHR), or 'prodromal'. The pioneering era of research on PRS focused on the development and validation of specific assessment tools and the delineation of high risk criteria. This was followed by the examination of conversion rates in psychosis risk cohorts followed naturalistically, identification of predictors of conversion to psychosis, and investigation of interventions able to abort or delay the development of full psychosis. Despite initially encouraging results concerning the predictive validity of PRS criteria, recent findings of declining conversion rates demonstrate the need for further investigations. Results from intervention studies, mostly involving second-generation antipsychotics and cognitive behavioral therapy, are encouraging, but are currently still insufficient to make treatment recommendations for this early, relatively non-specific illness phase. The next phase of research on PRS, just now beginning, has moved to larger, 'multisite' projects to increase generalizability and to ensure that sufficiently large samples at true risk for psychosis are included. Emphasis in these emerging studies is on: 1) identification of biomarkers for conversion to psychosis; 2) examination of non-antipsychotic, neuroprotective and low-risk pharmacologic and non-pharmacologic interventions; 3) testing of potentially phase-specific interventions; 4) examination of the relationship between treatment response during PRS and prognosis for the course of illness; 5) follow-up of patients who developed schizophrenia despite early interventions and comparison of illness trajectories with patients who did not receive early interventions; 6) characterization of individuals with outcomes other than schizophrenia-spectrum disorders, such as bipolar disorder and remission from PRS, including false positive cases; and 7) assessment of meaningful social and role functioning outcomes. While the research conducted to date has already yielded crucial information, the translation of the concept of a clinically identifiable PRS into clinical practice does not seem justified at this point.

Narrowing the boundaries of the genetic architecture of schizophrenia

Genetic architecture of a disease comprises the number, frequency, and effect sizes of genetic risk alleles and the way in which they combine together. Before the genomic revolution, the only clue to underlying genetic architecture of schizophrenia came from the recurrence risks to relatives and the segregation patterns within families. From these clues, very simple genetic architectures could be rejected, but many architectures were consistent with the observed family data. The new era of genome-wide association studies can provide further clues to the genetic architecture of schizophrenia. We explore models of genetic architecture by description rather than the mathematics that underpins them. We conclude that the new genome-wide data allow us to narrow the boundaries on the models of genetic architecture that are consistent with the observed data. A genetic architecture of many common variants of moderate (relative risk > approximately 1.2) can be excluded, yet there is evidence that current generation genome-wide chips do tag an important proportion of the genetic variation for schizophrenia and that the underlying causal variants will include common variants of small effect as well as rarer variants of larger effect. Together, these observations imply that the total number of genetic variants is very large--of the order of thousands. The first generation of studies have generated hypotheses that should be testable in the near future and will further narrow the boundaries on genetic architectures that are consistent with empirical data.

Efficacy of using cognitive status in predicting psychosis: a 7-year follow-up

BACKGROUND

Despite extensive early detection research in schizophrenic psychoses, methods for identifying at-risk individuals and predicting their transition to psychosis are still unreliable. Moreover, there are sparse data on long-term prediction. We therefore investigated long-term psychosis transition in individuals with an At Risk Mental State (ARMS) and examined the relative efficacy of clinical and neuropsychological status in optimizing the prediction of transition.

METHODS

Sixty-four individuals with ARMS for psychosis were identified from all referrals to our early detection clinic between March 1, 2000 and February 29, 2004. Fifty-three (83%) were followed up for up to 7 (mean 5.4) years.

RESULTS

Twenty-one of the 53 staying in follow-up developed psychosis, corresponding to a transition rate of .34 (Kaplan-Meier estimates). Median time to transition was 10 months (range <1-55). Six of all transitions (29%) occurred only after 12 months from referral. Best transition predictors within this population were selected attenuated psychotic symptoms (suspiciousness), negative symptoms (anhedonia/asociality), and cognitive deficits (reduced speed of information processing). With these predictors in an integrated model for predicting transition to psychosis, the overall predictive accuracy was 80.9% with a sensitivity of 83.3% and a specificity of 79.3%.

CONCLUSIONS

Follow-up of ARMS subjects should exceed the usual 12 months. Prediction of transitions could be improved by a stronger weighting of certain early symptoms and by introducing neurocognitive tests into a stepwise risk assessment. Confirmatory research will hopefully further improve risk algorithm, including psychopathology and neuropsychological performance, for clinical application in early detection clinics.

A new ethics of psychiatry: neuroethics, neuroscience, and technology

Neuroethics is a new subset of bioethics that addresses ethical issues pertaining to the brain, primarily in the fields of neuroscience, cognitive science, and neuroradiology. Research in brain science is progressing at a phenomenal rate and, as a result, the acquisition and application of knowledge and technology raises ethical questions of a practical and philosophical nature. While neuroethics is developing as a distinct field of study, one area that should be addressed in greater depth is the relevance and potential impact of neurotechnology in psychiatry. New knowledge in the mind-brain conundrum and increasingly sophisticated techniques for imaging and intervening in human cognition, emotion, and behavior pose ethical issues at the intersection of technology and psychiatry. This article presents a broad survey of the new directions in neuroethics, neuroscience, and technology and considers the implications of technological advances for the practice of psychiatry in the new millennium. (Journal of Psychiatric Practice 2009;15:391-401).

Ethical considerations in psychiatric genetics

Ethical considerations in psychiatric genetics are highly complex and fluid. This review introduces the reader to the wide range of ethical considerations in this field by examining four characteristics of genetic information. First, genetic information may, to a greater or lesser extent, predict a person's future health. Second, learning about one's genotype may have profound psychosocial consequences. Third, genetic information pertains to a person's biological relatives and thus can affect family members, communities, and population groups. Finally, psychiatric genetics is a rapidly evolving field. None of these characteristics is necessarily "exceptional" or unique to genetics, but they provide a useful framework for teasing apart a complex set of ethical considerations. This article reviews conceptual and empirical data that speak to these four characteristics and then presents a set of conceptual frameworks that can be used to systematically analyze the ethics of psychiatric genetic research and clinical genotyping. Finally, directions for future study are described--including the urgent need to gather data on actual risks and benefits of psychiatric genetic research and clinical applications, so that their utility can be assessed and appropriate ethical safeguards identified.

Initial medical work-up of first-episode psychosis: a conceptual review

AIM

To help clinicians carry out a comprehensive, medical diagnostic assessment in first-episode patients who are suspected of developing schizophrenia.

METHODS

Conceptual review of the published work with emphasis on the diagnostic goals of excluding medical causes of psychosis and establishing a medical baseline.

RESULTS

There is no agreed-upon standard for the initial medical work-up of first-episode cases. Excluding secondary causes of schizophrenia requires consideration of likelihood of disease; laboratory test performance; and relevance of positive test results.

CONCLUSIONS

We propose a medical work-up for first-episode psychosis that combines: (i) broad screening; (ii) exclusion of specific diseases informed by treatability and epidemiology; and (iii) medical baseline measures.

Early intervention in psychosis: concepts, evidence and future directions

The rise of the early intervention paradigm in psychotic disorders represents a maturing of the therapeutic approach in psychiatry, as it embraces practical preventive strategies which are firmly established in mainstream health care. Early intervention means better access and systematic early delivery of existing and incremental improvements in knowledge rather than necessarily requiring dramatic and elusive breakthroughs. A clinical staging model has proven useful and may have wider utility in psychiatry. The earliest clinical stages of psychotic disorder are non-specific and multidimensional and overlap phenotypically with the initial stages of other disorders. This implies that treatment should proceed in a stepwise fashion depending upon safety, response and progression. Withholding treatment until severe and less reversible symptomatic and functional impairment have become entrenched represents a failure of care. While early intervention in psychosis has developed strongly in recent years, many countries have made no progress at all, and others have achieved only sparse coverage. The reform process has been substantially evidence-based, arguably more so than other system reforms in mental health. However, while evidence is necessary, it is insufficient. It is also a by-product as well as a catalyst of reform. In early psychosis, we have also seen the evidence-based paradigm misused to frustrate overdue reform. Mental disorders are the chronic diseases of the young, with their onset and maximum impact in late adolescence and early adult life. A broader focus for early intervention would solve many of the second order issues raised by the early psychosis reform process, such as diagnostic uncertainty despite a clear-cut need for care, stigma and engagement, and should be more effective in mobilizing community support. Early intervention represents a vital and challenging project for early adopters in global psychiatry to consider.

Indicated prevention of schizophrenia

INTRODUCTION

Despite recent advances in their treatment, schizophrenic disorders are still among the diseases that most severely impair patients' quality of life. For this reason, centers for the early recognition of schizophrenic disorders have come into existence worldwide. In these centers, much effort is devoted to the development and testing of suitable preventive strategies.

METHODS

In this article, we selectively review the literature on the currently available means of assessing the individual risk of becoming ill with schizophrenia and of preventing the imminent onset of the disease.

RESULTS

The currently recognized neurobiological and psychosocial risk factors are not predictive enough to enable the development and application of selective prevention measures for asymptomatic persons at risk. The imminent onset of schizophrenia can be predicted with high accuracy, however, in cases where an initially non-psychotic patient develops early cognitive symptoms that imply a risk of schizophrenia and then, later on in the prodrome of the disease (which typically lasts about five years), goes on to develop high-risk symptoms with mild psychosis. At this point, a differential strategy of indicated prevention can be put into action, including cognitive behavioral therapy, atypical antipsychotics in low doses, and neuroprotective agents.

DISCUSSION

The current state of knowledge in this innovative field of research leads us to expect that it will soon be possible to offer individually tailored preventive measures to persons seeking medical help and advice because of the early warning signs of schizophrenia.