Major Depressive Disorder (MDD) is prevalent, often chronic, and requires ongoing monitoring of symptoms to track response to treatment and identify early indicators of relapse. Remote Measurement Technologies (RMT) provide an exciting opportunity to transform the measurement and management of MDD, via data collected from inbuilt smartphone sensors and wearable devices alongside app-based questionnaires and tasks.

To describe the amount of data collected during a multimodal longitudinal RMT study, in an MDD population.

RADAR-MDD is a multi-centre, prospective observational cohort study. People with a history of MDD were provided with a wrist-worn wearable, and several apps designed to: a) collect data from smartphone sensors; and b) deliver questionnaires, speech tasks and cognitive assessments and followed-up for a maximum of 2 years.

A total of 623 individuals with a history of MDD were enrolled in the study with 80% completion rates for primary outcome assessments across all timepoints. 79.8% of people participated for the maximum amount of time available and 20.2% withdrew prematurely. Data availability across all RMT data types varied depending on the source of data and the participant-burden for each data type. We found no evidence of an association between the severity of depression symptoms at baseline and the availability of data. 110 participants had > 50% data available across all data types, and thus able to contribute to multiparametric analyses.

RADAR-MDD is the largest multimodal RMT study in the field of mental health. Here, we have shown that collecting RMT data from a clinical population is feasible.

No significant relationships.

The challenge for psychiatrists is keeping up to date with the latest clinical trial data in managing major depressive disorder (MDD) and psychiatric emergencies.

We evaluated whether an online educational video lecture directed at psychiatrists, could improve knowledge and confidence regarding management of psychiatric emergencies associated with MDD.

Educational effect was assessed using a 3-question repeated pairs, pre/post assessment survey. A paired-samples t-test was conducted to assess overall number correct and confidence change. A McNemar’s test was conducted to assess question-level significance. P values < 0.05 are statistically significant. Cohen’s d test was used to estimate the magnitude of effect of education. The activity launched on 8 April 2021, and preliminary data analysed as of 24 June 2021.

807 psychiatrists participated in the programme, of which 150 completed the pre- and post-assessment test. An average overall correct response rate of 44% pre- increased to 74% post- (67% relative increase, P<0.001; Cohen’s d = 0.91). Knowledge on the burden of suicide and MDD improved from 38% pre- to 85% post- (124% relative increase,P<0.001). Knowledge regarding clinical data for novel therapies for use in psychiatric emergencies improved from 47% pre- to 68% post- (45% relative increase, P<0.01). Knowledge regarding signs of suicidal intent in patients with MDD improved from 49% pre- to 71% (45% relative increase, P<0.001) following education.

This study demonstrates the positive effect of online medical education on psychiatrists’ knowledge in contemporary management of psychiatric emergencies associated with MDD in Europe.

The results of this study were from an educational programme that was developed through independent educational funding from Janssen Neuroscience.

Schizophrenia is a heterogeneous disorder and it is unknown what causes individual variability in symptoms and cognitive ability.

To examine the association between nine clinical predictors measurable at the onset of schizophrenia and five phenotype dimensions: positive, negative (diminished expressivity), negative (motivation and pleasure), disorganised symptoms and cognitive ability.

852 participants (mean age 49 years old) with a diagnosis of schizophrenia or schizoaffective depression were included from the CardiffCOGS cross-sectional sample. Phenotype dimensions were created using confirmatory factor analysis and a 5-factor model. Associations were tested using linear regression, adjusting for age and sex. A Bonferroni correction was applied for (p<1.1x10-3) for multiple testing.

Age of onset of psychosis was significantly associated with positive symptoms (β=-0.18, p=4.0 x10-6). Lower premorbid IQ was associated with diminished expressivity (β=-0.25, p= 7.0x10-13), reduced motivation and pleasure (β=-0.23, p= 4.3x10-11), disorganised symptoms (β=-0.14, p= 7.6x10-5) and reduced cognition (β=0.54, p= 4.8x10-77). Poor premorbid social adjustment held associations with all except positive. Developmental delay was associated with reduced cognition (β=-0.35, p= 4.3x10-5). Cannabis use (year before onset), psychosocial stressors (within 6 months), childhood abuse and family history of schizophrenia held no associations.

Clinical indicators measurable at schizophrenia onset are associated with lifetime symptom variability. A younger psychosis onset is associated with more severe positive symptoms, suggesting possible age-targeted management. Pre-established links of lower premorbid IQ with poor premorbid social adjustment and negative symptom severity with cognition are strengthened. Further investigation could potentially improve diagnosis and guide treatment choice for aspects of schizophrenia with poor outcomes.

No significant relationships.

Compared to the general population, people living with schizophrenia spectrum disorders (SSD) are more likely to perpetrate acts of violence. When this happens, family members (informal carers) are most commonly the victims. However, family violence by people with SSD is often a taboo topic and largely neglected within public discourse, research, and clinical domains. Consequently, our understanding of families’ experiences and support needs are limited.

To develop a detailed understanding of the subjective experiences, and impact, of patient violence towards family carers.

Individual semi-structured interviews were held with family carers of adults with SSD and a history of violence perpetration towards their family carer. Interview data were subject to thematic analyses using NVivo software.

Twenty-one UK based carers that were predominately White British (90%) and female (81%) were interviewed. Key themes highlight the range of physical and mental injuries endured by carers following patient violence, and speak to carers’ experiences of suffering, living in a constant state of hypervigilance, as well as social isolation in the context of shame, stigma, and an absence of professional and informal support.

Family violence by people living with SSD can and does happen. Yet, too often, carers are left with no option but to continue supporting their relative in the absence of support, even in contexts where this compromises their own safety. The devastating impact of violence is far-reaching, across all levels of the family-system. The findings highlight the danger of neglecting family violence by people with SSD in research and clinical fields.

No significant relationships.

Everyday social interactions are based on Theory of Mind (ToM) or mentalizing, whose complex processes are involved in understanding, representing one’s own and other people’s mental states. ToM is supposed to have two systems. The implicit ToM seems to be a fast, automatic, non-verbal processing. The explicit ToM is characterized by a slower, but more flexible processing, which is mostly verbal, interpretative. Several studies have described explicit ToM deficit in schizophrenic patients. Less research has investigated implicit ToM in patients, however recently, there has been a growing number of articles examining implicit ToM of patients with schizophrenia.

The aim of our systematic review and meta-analysis is to summarize the results of the implicit ToM in schizophrenia.

A systematic search was performed in four major databases. We included 11 publications. 7 studies; and 5 studies were included the quantitative synthesis and the qualitative synthesis, respectively.

We found significant differences in accuracy, reaction time and brain activation patterns during implicit ToM between schizophrenic patients and controls. The systematic review revealed further alterations in visual scanning, cue fixation, face looking time, and difficulties in perspective taking.

Based on our results implicit ToM is affected in schizophrenia in addition to explicit ToM deficit. However, based on these results we cannot exclude the possibility, that implicit ToM or at least some elements of it might be relatively unaffected (e.g. detection of intentionality), however its effectiveness is limited by non-mentalizing deficits (e.g. certain neurocognitive impairments). Our results may have important implications for the remediation of mentalizing skills.

The research is supported by the Hungarian National Excellence Centrum Grant (FIKP II) and Hungarian Brain Research Program (KTIA-13-NAP-A-II/12).

The familiality of intelligence quotient (IQ), understood as its similarity among family members, might be related to different manifestations in first episode of psychosis (FEP) patients.

To estimate the IQ familiality through the intra-family resemblance score (IRS) in FEP patients and their unaffected first-degree relatives; and to analyze if the deviation from the family-IQ is related to the patients’ premorbid, clinical and cognitive characteristics.

Individuals from 129 families participated in this study (129 patients, 143 parents, 97 siblings). For each family, two values were estimated: the family-IQ, obtained by the mean IQ of the patient and his/her relatives (using the WAIS vocabulary subtest); and the IRS, an index previously reported that indicate intra-family heterogeneity (IRS<0) or homogeneity (IRS>0) for a given trait. According to the IRS and the family-IQ, patients were assigned to 6 groups (Figure 1).

FEP patients in families with heterogeneous IQ (IRS<0) had a significantly lower IQ than their relatives (p<0.001). Also, those with low IQ and from heterogeneous families had poorer childhood adjustment (p=0.001). The patients with high IQ belonging to homogenous families showed less positive symptoms at baseline (p=0.009). FEP patients in homogenous families due to low IQ evidenced the lowest neuropsychological performance (Figure 2).

The analysis of the IQ familiality and the concordance/discordance of the patients’ and relatives’ IQ, offers a new approach for the characterization of different premorbid, clinical and cognitive profiles in FEP patients. The relationship between deviation from the family-IQ and poor premorbid childhood adjustment supports the neurodevelopmental hypothesis of schizophrenia.

No significant relationships.

There is a growing consensus on brain networks that it is not immutable but rather a dynamic complex system for adapting environment. The neuroimaging research studying how brain regions work collaboratively with dynamic methods had demonstrated its effectiveness in revealing the neural mechanisms of schizophrenia.

To investigate altered dynamic brain functional topology in first-episode untreated schizophrenia patients (SZs) and establish classification models to find objective brain imaging biomarkers.

Resting-state-functional magnetic resonance data for SZs and matched healthy controls were obtained(Table1).

Power-264-template was used to extract nodes and sliding-window approach was carried out to establish functional connectivity matrices. Functional topology was assessed by eigenvector centrality(EC) and node efficiency and its time-fluctuating was evaluated with coefficient of variation(CV). Group differences of dynamic topology and correlation analysis between Positive and Negative Syndrome Scale(PANSS) scores and topology indices showing group differences, which also were used in establishing classification models, was examed.

The CV of node efficiency in angular and paracingulate gyrus was larger in SZs. There are 13 nodes assigned into several brain networks displaying altered CV of EC between groups(Figure1.A). Fluctuation of EC of the node in DMN, which was lower in SZs, showed negative correlation with PANSS total scores(Figure1.B). Dynamic functional topology of above nodes was used to train classification models and demonstrated 80% and 71% accuracy for support vector classification(SVC) and random forest(RF), respectively(Figure2).

Dynamic functional topology illustrated a capability in identifying SZs. Aberrated dynamics of DMN relevant to severity of patient’s symptoms could reveal the reason why it contributed to classification.

No significant relationships.

Social contact-based video interventions effectively reduce stigma toward individuals with psychosis.

We recently demonstrated the efficacy of a 90-second social contact–based video intervention in reducing stigma. The current randomized controlled study presents four briefer videos differing in presenter’s gender and race, with baseline, postintervention, and 30-day follow-up assessments. The study aimed to examine whether people changing their attitudes following the intervention.

Using a crowdsourcing platform (CloudResearch), we recruited and assigned 1,993 race and gender-balanced participants ages 18–35 years to one of four brief video-based interventions (Black female, White female, Black male, and White male presenters) or a nonintervention control condition. In the videos, a young presenter with psychosis humanized their illness through an evocative description of living a meaningful and productive life.

Five-by-three ANOVA showed a significant group-by-time interaction for the total score of all five stigma domains: social distance, stereotyping, separateness, social restriction, and perceived recovery. A one-way ANOVA showed greater reductions in video intervention groups than control at post-intervention and 30-day follow-up, but no differences between video groups.

This randomized controlled study replicated and extended previous research findings by showing stigma reduction across videos that differ in the presenter’s gender and race, thus enhancing generalizability. The videos described the experience of psychosis and reduced stigma, suggesting their potential utility on social media platforms to increase the likelihood of seeking services and ultimately may improve access to care among young individuals with psychosis. Future research should address intersectional stigma experienced by culturally tailoring the narrative.

No significant relationships.

Growing old with schizophrenia is a profound challenge. However, impact and course of the disorder vary widely among individuals. The recovery concept has inspired outcome evaluation. In older schizophrenia patients, research on recovery is limited and mainly cross-sectional.

To compare 5-year outcome of clinical recovery (symptomatic remission and adequate community functioning) with outcome of subjective well-being (as a key element of personal recovery).

Our catchment-area based study sample consisted of 73 older Dutch schizophrenia patients (mean age 65.9 years; SD 5.4), including both community living and institutionalized patients regardless of the age of onset of their disorder.

At baseline (T1) 5.5% of participants qualified for clinical recovery, while at five-year follow-up (T2) this rate was 12.3% (p=0.18, exact McNemar’s test). Subjective well-being was reported by 20.5% of participants at T1, and by 27.4% at T2 (p=0.27, exact McNemar’s test). Concurrent clinical recovery and subjective well-being was exceptional, being present in only one participant at T1 and in two participants at T2. Clinical recovery and subjective well-being were not correlated at T1 (p=0.82; phi=0.027), nor at T2 (p=0.71; phi= -0.044).

Transitions over time confirm a dynamic course of schizophrenia in later life, with room for improvement. In our sample, we found no linkage between clinical recovery and subjective well-being. Results suggest that while clinical recovery is relatively rare in older individuals with schizophrenia it is not a prerequisite to experience subjective well-being. In spite of ongoing symptoms a substantial number of older schizophrenia patients report subjective well-being and thus may find ‘wellness within illness’.

No significant relationships.

Despite of the heightened risks and burdens of physical comorbidities across the entire schizophrenia spectrum disorders (SSD), relatively little is known about physical multimorbidity (CPM) in this population. The study’s main objective was to explore the differences in the CPM prevalence between SSD patients and the general population (GEP).

The primary outcome was to explore the difference in CPM prevalence in the younger SSD and GEP groups (<35 years).The secondary outcome was the number of psychiatric readmissions.

This nested cross-sectional study enrolled 343 SSD patients and 620 GEP participants.

Younger SSD patients had more than three-fold higher odds for CPM than GEP. We also demonstrated an association between the presence of CPM and the number of psychiatric admissions in the SSD population independently of possible confounders. We did not observe significant interaction of CPM and age in the prediction of clozapine use. Younger women with SSD had statistically significant, almost four-fold higher odds of CPM than women from GEP.

This study suggests that women with SSD are at increased physical comorbidity risk compared to men, particularly early in the course of psychiatric illness. Our results highlight the importance of addressing physical health from the first contact with a mental health service to preserve general health, and provide the best possible treatment outcome. Treatment of SSD must be customized to meet the needs of patients with different physical multimorbidity patterns.

No significant relationships.

Many forms of mental disorders, especially psychotic disorders are characterized also by a worsening of sexual functioning. Sexual dysfunction has been shown to significantly correlate with a longer duration of untreated psychosis and with heavier psychotic symptomatology.

The aim of this study is to validate the Italian version of the Arizona Sexual Experience (ASEX), a very handy and reliable tool to assess sexual dysfunction, in a population of people suffering from psychotic spectrum disorders.

Seventy-three psychiatric patients were recruited and assessed for mental illness and sexual functioning. We administered the Italian version of ASEX, adequately translated by two expert bilinguals. After 15 days we administered once again the test for test-retest reliability.

Validation of ASEX revealed Cronbach’s coefficients >0.70 in both single items as in the total score. In addition, the test-retest reliability revealed Pearson’s coefficients >0.50 in the various domains. Confirmatory factor analysis revealed good fit indexes for the two factors model of ASEX (SRMR=0.54; CFI=0.974; RMSEA=0.135).

This study represents the first validation in the Italian psychiatric context of a very useful specific tool for the sexual assessment in people suffering from mental illness. Our analysis revealed good psychometric characteristics in terms of confirmatory factor analysis, internal consistency, and test-retest reliability.

No significant relationships.

Long-acting injectable (LAI) antipsychotics and community treatment orders (CTOs) are used in patients with schizophrenia to improve treatment effectiveness through adherence.

Understanding healthcare resource utilization (HRU) and associated costs, and medication adherence in patients with schizophrenia overall and by CTO status before and after second generation antipsychotic (SGA) LAI initiation may guide strategies to optimize health.

A retrospective observational single-arm study using administrative data from Alberta was performed. Adults with schizophrenia who initiated SGA-LAI (index date) were included. Medication possession ratio (MPR) was determined; paired t-tests were used to examine differences in HRU and costs ($CDN) between the 2-year pre-index period and 2-year post-index period. Stratified analysis by presence or absence of an active CTO during the pre-post periods was performed.

Among 1,211 patients who initiated SGA-LAIs, MPR was greater post-index (0.84) compared with pre-index (0.45; 95% confidence interval [CI] 0.36, 0.41). All-cause and mental health-related HRU and costs were lower post-index versus pre-index (p<0.001); total all-cause HRU costs were $33,788 lower post- versus pre-index ($40,343 [standard deviation, SD $68,887] versus $74,131 [SD $75,941], 95% CI [-$38,993, -$28,583]), and total mental health-related HRU costs were $34,198 lower post- versus pre-index ($34,205 [SD $63,428] CDN versus $68,403 [SD $72,088] CDN, 95%CI [-$39,098, -$29,297]). Forty-three percent had ≥1 active CTO during the study period; HRU and costs varied according to CTO status.

SGA-LAIs are associated with improved adherence, and lower HRU and costs however the latter vary according to CTO status.

The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this abstract: SD and MS have no competing interest to declare. LR, SK, KW, and KM are members of the Real-World Evidence

Ageing is accompanied by the development of low-grade systemic inflammation which may promote changes in the neural systems predisposing to geriatric depression via the hypothalamic-pituitary-adrenal (HPA) axis.

The aim of this study was to investigate the longitudinal associations between baseline values and conditional changes in immune-endocrine biomarkers and mental health status in a population-based cohort of older adults.

Data from 347 subjects(200 men, 147 women) who participated in the Hertfordshire Ageing Study at baseline(mean age 67.3 years) and at 9-year follow-up were analysed. Serum samples for analysis of inflammatory and endocrinological measures were collected at baseline and follow-up. At follow-up, depression (Hospital Anxiety and Depression Scale) and mental health(Short Form-36 questionnaire) were assessed. Baseline values and changes in biomarkers in relation to risk of high depression scores and low mental health scores were examined using logistic regression.

Lower baseline cortisol was related to greater risk of high depression scores; higher baseline cortisol: Dehydroepiandrosterone Sulphate ratio(men only) and higher baseline CRP(women only) were related to greater risk of poor mental health scores. In addition, greater decline in cortisol was related to increased risk of high depression scores among men. These relationships were robust(p<0.05) after controlling for sex, age, BMI, smoking, alcohol consumption and number of systems medicated.

This study provides further evidence of the role of the HPA and inflammation in older adults with poor mental health. In addition, the findings highlight sex differences where increased inflammation in women and declines in cortisol in men was linked to poorer mental health.

No significant relationships.

Biomarkers in CSF could provide etiological clues and diagnostic tools for psychotic disorders. However, an overview of all CSF findings in individuals with psychotic disorders compared to healthy controls is lacking.

To analyse CSF findings from individuals with psychotic disorders compared to healthy controls.

PubMed, EMBASE, Cochrane Library, Web of Science, ClinicalTrials.gov, and PsycINFO were searched November 3rd, 2021. Case-control studies including patients with non-affective, psychotic disorder compared to healthy controls measuring at least one biomarker in CSF are included. Standardized Mean Differences (SMD) and random-effects analyses were used.

141 studies, covering 192 biomarkers, were included. 161 biomarkers have not previously been included in meta-analyses. Most markers measured showed no significant differences, including the dopamine metabolites HVA and DOPAC. Patients with psychotic disorders showed increased CSF levels of noradrenaline (SMD, 0.53; 95% CI, 0.15-0.90), MHPG (SMD, 0.30; 95% CI, 0.05-0.55), 5-HIAA (SMD, 0.11; 95 % CI, 0.01-0.21), kynurenic acid (SMD, 1.58; 95% CI, 0.26-2.91), kynurenine (SMD, 1.00; 95% CI, 0.58-1.42), IL-6 (SMD, 0.58; 95% CI, 0.39-0.77), IL-8 (SMD, 0.47; 95% CI, 0.18-0.77), anandamide (SMD, 0.78; 95% CI, 0.53-1.02), albumin ratio (SMD, 0.53; 95% CI, 0.10-0.96), total protein (SMD, 0.31; 95% CI, 0.14-0.48), and glucose (SMD, 0.57; 95% CI, 0.08-1.06). Neurotensin (SMD, -0.67; 95% CI, -0.89 to -0.46) and GABA (SMD, -0.29; 95% CI, -0.50 to -0.09) were decreased.

These findings suggest that dysregulation of the immune and adrenergic system and blood-brain barrier dysfunction might play a role in the pathophysiology of psychotic disorders.

No significant relationships.

Social connectedness might positively influence the course of clinical symptoms in people with psychotic disorders.

This study examines satisfaction with social connectedness (SSC) as predictor of positive and negative symptoms in people with a psychotic disorder.

Data from the Pharmacotherapy Monitoring and Outcome Survey (PHAMOUS, 2014-2019) was used from patients diagnosed with a psychotic disorder (N=2109). Items about social connectedness of the Manchester short assessment of Quality of Life (ManSA) were used to measure SSC. Linear mixed models were used to estimate the association of SSC with the Positive and Negative Syndrome Scale (PANSS) after one and two years against α=0.01. Analyses were adjusted for symptoms, time since onset, gender and age. Additionally, fluctuation of positive and negative symptom scores over time was estimated.

Mean duration of illness of the sample was 18.8 years (SD 10.7) with >65% showing only small variation in positive and negative symptoms over a two to five-year time period. After adjustment for covariates, SSC showed to be negatively associated with positive symptoms after one year (β=-0.47, p<0.001, 95% CI=-0.70,-0.25) and two years (β =-0.59, p<0.001, 95% CI = -0.88,-0.30), and for negative symptoms after one year (β=-0.52, p<0.001, 95% CI = -0.77,-0.27). The prediction of negative symptoms was not significant at two years.

This research indicates that interventions on SSC might positively impact mental health for people with psychosis. SSC is a small and robust predictor of future levels of positive symptoms. Negative symptoms could be predicted by SSC at one year.

No significant relationships.

Functional deficits, that is, problems in fulfilling appropriate social roles in daily life, are very common in people with a psychotic disorder. In recent years, Virtual Reality (VR) has emerged as a potential tool to improve SCT. Our research group has developed an immersive VR-SCT (‘Dynamic Interactive Social Cognition Training in Virtual Reality’: ‘DiSCoVR’).

To evaluate to effects of a VR-based social cognition training (SCT) for people with a psychotic disorder.

This intervention was compared the an active VR-control condition in a multicenter RCT. Both interventions contained sixteen individual 45-60-minute on-site sessions, administered twice a week. Main study outcomes are social cognition and social functioning in daily life assessed with experience sampling.

From baseline to post-treatment (n=72), none of the time*group interactions were significant, indicating an absence of treatment effects. A significant effect of time was observed for the SERS total score (b=9.84, 95% CI=3.81-15.87, p=.002), indicating overall improvement in self-esteem.

We did not find any significant treatment effects. An effect of time on self-esteem was found at post-treatment, but not follow-up, suggesting a temporary improvement in self-esteem in both groups. One way to interpret these results is that, contrary to other SCT interventions, DiSCoVR does not improve social cognition or social functioning. This could be due to characteristics of the treatment protocol. Another possibility is that, contrary to the premise of VR-SCT, our VR environments inadequately simulated reality. Adapting an established protocol to VR, could further elucidate the merit of VR as a training method.

No significant relationships.

While alcohol-induced psychotic disorder (AIPD) is a well-recognised clinical disorder, relativery little is known about aspects such as epidemiology, course and treatment of the condition. Current evidence suggests AIPD can be clinically distinguised from alcohol-withdrawal delirium and schizophrenia. AIPD is associated with high comorbidity with other psychiatric disorders, high re-hospitalization and mortality rate, namely suicidal behaviour.

The objetive of the study was to examine the correlates, clinical features, psycopathology, and short-term response in an inpatient sample with alcohol-induced psychotic disorder, predominant hallucinations (ICD-10 F10.52) admitted to Centro Hospitalar Psiquiátrico de Lisboa.

We collected retrospectively data from all admitted patients to our Alcohol Unit between January 2010 and January 2020 with the diagnosis of AIPD. The exclusion criteria were: presence of preexisting psychotic disorder, delirium, or other substance use disorders. We characterized our sample in Demographic categories, Clinical categories, Treatment and Short-term course.

A total of 113 subjects were included in the study. The prevalance of alcoholic hallucinosis was found to be 1.3% of all patients who received inpatient treatment. Most individuals reported auditory hallucinations, that iniciated when they decrease their alcohol intake, and 1 in 4 had past episodes of AIPD.

There are specific challenges in studiyng AIPD, such as the relatively rarity of the disorder, its often transient nature and high levels of comorbidity. A high degree of recurrence and morbidity indicates a need to prevent, and intervene early with an abstinent-oriented management goal.

No significant relationships.

Power spectral analysis is the most common method of quantitative electroencephalogram (qEEG) techniques and enables investigation of the microstructure of insomnia. Previous spectral analysis studies on insomnia have shown inconsistent results due to their heterogeneity and small sample sizes.

We compared the difference of electroencephalogram (EEG) spectral power during sleep among participants without insomnia, insomniacs with no hypnotic use, hypnotic users with no insomnia complaints, and hypnotic users with insomnia complaints.

We used the Sleep Heart Health Study data, which is large sample size and has good quality control. The fast Fourier transformation was used to calculate the EEG power spectrum for total sleep duration within contiguous 30-second epochs of sleep. For 1,985 participants, EEG spectral power was compared among the groups while adjusting for potential confounding factors that could affect sleep EEG.

The power spectra during total sleep differed significantly among the groups in all frequency bands (p corr < 0.001). We found that quantitative EEG spectral power in the beta and sigma bands of total sleep differed (p corr < 0.001) between participants without insomnia and hypnotic users with insomnia complaints after controlling for potential confounders. The higher beta and sigma power were found in the hypnotic users with insomnia complaints than in the non-insomnia participants.

This study suggests differences in the microstructures of polysomnography-derived sleep EEG between the insomnia groups.

No significant relationships.

The association between CYP2C19 poor metabolizer status, depressive symptom severity and hippocampal volume in humans is controversial. Progress in understanding not only the pathophysiology of depression but also potential protective mechanisms is important both for daily clinical practice and for the development of new antidepressant therapies.

To test and validate previous findings regarding the impact of CYP2C19 status on depressive symptoms and to examine whether it could influence hippocampus subregions and brain tissue microstructure.

A total of 4152 individuals from the Longitudinal cohort in the community-dwelling adult population - Colaus|PsyCoLaus in Lausanne, Switzerland were included. They have participated in at least one psychiatric evaluation. Brain anatomy patterns using a comprehensive set of psychometry, water diffusion- and relaxometry-based magnetic resonance imaging data were analysed in a subset of the cohort (BrainLaus, n=1187).

In this population-based cohort study, better lifetime global assessment of functioning scores were observed in poor metabolizers when compared to other metabolizers, this result was mainly driven by female participants (ß=3.9, P=0.01). Examination of brain imaging data revealed that higher right hippocampal subiculum volume was related to poor metabolizer status (ß=0.03, P=0.006). In addition, associations were observed between metabolizer status and white matter microstructure in the left uncinate fasciculus (ß=-0.01, P=0.01) and the left cingulum bundle (ß=-0.01, P=0.01).

CYP2C19 status is associated with modifications in lifetime global functioning, and brain anatomy. Such differences in brain structures can contribute to explain the protective effect of CYP2C19 poor metabolizer status.

No significant relationships.

Suppressor of cytokine signaling (SOCS) proteins are the critical negative regulators of immune responses that exert their effects by inhibiting the Jak/Stat signaling pathway.

To investigate quantitative detection of methylated SOCS-1 in schizophrenia and bipolar disorder considering SOCS-1 -1478CA/del polymorphism and clinical parameters.

114 patients with SCZ, 86 patients with BD, and 80 healthy volunteers were included in the case-control study. The patients were consecutively admitted to the outpatient clinic for three months and were evaluated with some scales for clinical parameters. To measure the methylation level of the SOCS-1 gene, bisulfite-converted DNA samples were analyzed using the real-time quantitative methylation-specific PCR method. SOCS-1 -1478CA/del gene polymorphism was evaluated by using the PCR-RFLP.

The SOCS-1 promoter methylation levels of SCZ (p = .001) and BD (p = .024) were found to be significantly different from the control group. SOCS-1 methylation was significantly different between SCZ groups due to the age of onset (p = .009). Again, SOCS-1 methylation was significantly different between BD groups due to YMRS scale scores (p = .027). While the SOCS-1 genotype distributions of SCZ patients were not found to be statistically different from the control group, a significant difference in genotype distribution between BD patients and healthy controls was found (p = .013).

The methylated SOCS-1 quantity in DNA samples of both SCZ and BD patients was significantly lower than in control samples. Whereas the SOCS-1 -1478CA/del polymorphism was not related to SCZ, it may be associated with the BD.

No significant relationships.