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1.
Front Psychiatry ; 15: 1248963, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38654727

RESUMO

Background: The influence of mindfulness-based intervention (MBI) programs on behavioural problems among community youth is largely understudied. While technology continues to evolve and the prevalence of screen-based activities is rising, limited studies have accounted for screen time when examining the efficacy of an MBI. Accordingly, this study investigated the impact of MBI on conduct problems and hyperactivity among community youth, accounting for sociodemographic characteristics and four types of screen time. Method: Linear regression models were used to investigate 1) the association between four types of screen time and behavioural problems (i.e., conduct problems and hyperactivity) and 2) the efficacy of online mindfulness programs in reducing behavioural problems among community youth. The data were collected at baseline, intervention completion and 1-month follow-up (Spring 2021 to Spring 2022) in Ontario, Canada (n=117, mean age=16.82, male=22%, non-White=21%). Results: The average score for conduct problems was within the normal range, while the average score for hyperactivity was considered borderline at baseline. Accounting for other types of screen time, time spent playing video games was significantly associated with increased conduct problems (ß= 1.75, p=.03), albeit rendering non-significant after correcting for multiple comparisons. The online mindfulness program was significantly associated with reduced hyperactivity, controlling for baseline mental health, age, sex and screen time. Conclusion: The current findings suggest a 12-week online mindfulness program may play a positive role in reducing hyperactivity even when accounting for screen time. Our findings advocate the evidence base on the efficacy of MBI in managing hyperactivity.

2.
PLoS One ; 19(4): e0302164, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38626126

RESUMO

While COVID-19 impacted all aspects of health care and patient treatment, particularly for patients with mental health/substance use (MH/SU) concerns, research has suggested a concerning increase in the use of restraint and seclusion (R/S) interventions, although results vary depending on facility type and patient population. Thus, the present study sought to explore COVID-related changes in the use of R/S interventions among patients presenting to Ontario emergency departments (EDs) with MH/SU complaints. To determine whether temporal and clinical factors were associated with changes in R/S use during COVID, binary logistic regression models were computed using data from the National Ambulatory Care Reporting System database. We then compared both prevalence rates and probability of an R/S event occurring during an ED visit in Ontario before and after the onset of COVID. The number of ED visits during which an R/S event occurred for patients presenting with MH/SU concerns increased by 9.5%, while their odds of an R/S event occurring during an ED visit increased by 23% in Ontario after COVID onset. Similarly, R/S event probability increased for patients presenting with MH/SU concerns after COVID onset (0.7% - 21.3% increase), particularly during the first wave, with the greatest increases observed for concerns associated with increased restraint risk pre-COVID. R/S intervention use increased substantially for patients presenting to Ontario EDs with MH/SU concerns during the first wave of COVID when the strain on healthcare system and uncertainty about the virus was arguably greatest. Patients with concerns already associated with increased R/S risk also showed the largest increases in R/S probability, suggesting increased behavioural issues during treatment among this population after COVID onset. These results have the potential to inform existing policies to mitigate risks associated with R/S intervention use during future public health emergencies and in general practice.


Assuntos
COVID-19 , Transtornos Relacionados ao Uso de Substâncias , Humanos , Ontário/epidemiologia , Pandemias , COVID-19/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Serviço Hospitalar de Emergência
3.
Neuropsychobiology ; : 54-59, 2023 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-37984346

RESUMO

INTRODUCTION: An increased proclivity towards violence is often associated with those diagnosed with schizophrenia (SCZ), despite contradictory findings from prior studies exploring the association between violence and SCZ. Evidence has shown that certain comorbidities, specifically the presence of a substance use disorders, can result in increased aggression in those with SCZ. Copy number variation (CNV) load has also previously been implicated in the genetic vulnerability of individuals with SCZ. For this study, we aimed to determine whether CNV load correlates with increased violence in SCZ. METHODS: Community-dwelling patients diagnosed with SCZ spectrum disorders (n = 203) were recruited from a non-forensic population. The assessment for aggression was completed using a cross-sectional and retrospective design, and CNV analysis was conducted analysing genomic DNA using the Illumina Omni 2.5 array. RESULTS: No correlation between the number of CNV events (either deletion or duplication) and the severity of the physical violence episode index was found. However, there was a significant association between larger deletion events across the violent behaviours under investigation. DISCUSSION: These results need to be confirmed in more extensive studies using standardized tools developed for non-forensic populations, such as the Brown-Goodwin Scale of Aggression.

4.
Transl Psychiatry ; 13(1): 330, 2023 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-37884552

RESUMO

The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), published in 2013, includes an alternative model of personality disorders (AMPD) focusing on a maladaptive trait model utilized to diagnose several personality disorders. Borderline personality disorder (BPD) and antisocial personality disorder (ASPD) are two conditions categorized by AMPD that exhibit high rates of violence and aggression. Several of the traits outlined in the AMPD, including hostility, impulsivity, risk-taking, and callousness, have been previously linked to aggression in BPD and ASPD. However, to the best of our knowledge, there has never been a synthesis of neuroimaging studies that have investigated links between these traits and aggression in BPD and ASPD. To overcome this gap, we conducted a systematic review under the PRISMA framework to locate neuroimaging articles published since the release of AMPD linking trait anger/hostility, impulsivity, risk-taking, and callousness to aggression in BPD and ASPD. Key findings included the following: i) anger/hostility, associated with alterations in the interplay between prefrontal and subcortical regions (primarily the amygdala), may be a common factor explaining aggressive reactions to response to interpersonal threat or provocation; ii) alterations of fronto-temporal-limbic regions and serotonergic and endocannabinoid signaling systems may link impulsivity to aggression in BPD and ASPD; iii) weaker cortico-striatal connectivity could relate to greater risk taking and greater proclivity for violence. Insufficient evidence from neuroimaging articles was discerned to describe a relationship between callousness and aggression. Overall, results of this review reveal a relative paucity of neuroimaging studies examining AMPD traits relevant to aggression in BPD and ASPD. In addition to encouraging further investigation of neuroimaging markers of AMPD traits linked to aggression, we recommend multi-methodological designs, including the incorporation of other biomarkers, such as hormones and indices of physiological arousal, to fully expand our understanding of aggression in BPD and ASPD.


Assuntos
Agressão , Transtorno da Personalidade Borderline , Humanos , Agressão/fisiologia , Ira , Transtorno da Personalidade Antissocial , Transtorno da Personalidade Borderline/diagnóstico por imagem , Manual Diagnóstico e Estatístico de Transtornos Mentais
5.
BJPsych Open ; 9(5): e171, 2023 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-37724335

RESUMO

BACKGROUND: Public stigma and fear are heightened in cases of extreme violence perpetrated by persons with serious mental illness (SMI). Prevention efforts require understanding of illness patterns and treatment needs prior to these events unfolding. AIMS: To examine mental health service utilisation by persons who committed homicide and entered into forensic care, to investigate the adequacy of mental healthcare preceding these offences. METHOD: Forensic patients across two mental health hospitals in Ontario with an admitting offence of homicide between 2011 and 2021 were identified (n = 112). Sociodemographic, clinical and offence-related variables were coded from the health record and reports prepared for the forensic tribunal. RESULTS: Most patients (75.7%) had mental health contacts preceding the homicide, with 28.4% having a psychiatric in-patient admission in the year prior. For those with service contacts in the year preceding, 50.9% had had only sporadic contact and 70.7% were non-adherent with prescribed medications. Victims were commonly known to the individual (35.7%) and were often family members in care-providing roles (55.4%). Examination of age at onset of illness and offending patterns suggested that most persons admitted to forensic care for homicide act in the context of illness and exhibit a low frequency of pre-homicide offending. CONCLUSIONS: Many individuals admitted to forensic care for homicide have had inadequate mental healthcare leading up to this point. Effective responses to reduce and manage risk should encompass services that proactively address illness-related (e.g. earlier access and better maintenance in care) and criminogenic (e.g. substance use treatment, employment and psychosocial supports) domains.

6.
Front Psychiatry ; 14: 1165217, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37426093

RESUMO

Introduction: Increased screen time coupled with public safety restrictions may pose a serious challenge to adequate social-emotional development in youth during the pandemic. Social-emotional competence (resilience, self-esteem, and self-compassion) are essential for youth to adapt to the "new normal" in the prolonged pandemic timeline. The current study investigated the efficacy of a mindfulness-based intervention on youth social-emotional capacity while accounting for screen time. Methods: One hundred and seventeen youth participated in a 12-week, online mindfulness-based program and completed pre-, post- and follow-up surveys across five cohorts during the COVID-19 pandemic (spring 2021 to spring 2022). Changes in youths' resilience (RS), self-esteem (SE), and self-compassion (SC) between the three-time points were examined using linear regression analyses (unadjusted, partially adjusted for screen time, and fully adjusted for demographic and screen time variables). The regression models accounted for demographic (age, sex), baseline mental health status, and screen time (passive, social media, video games, and educational types of screen-based behaviours) factors. Results: In an unadjusted regression model, resilience [ß = 3.68, 95%CI = 1.78-5.50, p < 0.001], self-compassion [ß = 0.50, 95%CI = 0.34-0.66, p < 0.001], and self-esteem [ß = 2.16, 95%CI = 0.98-3.34, p < 0.001] significantly increased after the mindfulness program, and the effects were maintained in the follow-up. The efficacy of the mindfulness program persisted after controlling for five types of screen time [RS: ß = 2.73, 95%CI = 0.89-4.57, p < 0.01; SC: ß = 0.50, 95%CI = 0.32-0.67, p < 0.001; SE: ß = 1.46, 95%CI = 0.34-2.59, p < 0.01] and in a fully adjusted model which additionally accounted for the baseline mental health status and demographic factors [RS: ß = 3.01, 95%CI = 1.20, p < 0.01; SC: ß = 0.51, 95%CI = 0.33-0.68, p < 0.001; SE: ß = 1.64, 95%CI = 0.51-2.77, p < 0.01] and maintained its impact in the follow-up. Discussion: Our findings reinforce the evidence base on the efficacy of mindfulness and support the use of online mindfulness programs in building social-emotional competencies (i.e., self-compassion, self-esteem, and resilience) among youth exposed to screens during the pandemic.

7.
J Psychopharmacol ; 37(9): 920-927, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37497695

RESUMO

BACKGROUND: Bipolar disorder (BD) and cannabis use are each associated with neurocognitive deficits in adolescents. However, little is known regarding the association of neurocognition with cannabis use among adolescents with BD. Therefore, we examined this topic in a sample of adolescents with BD and healthy control (HC) adolescents. METHODS: Participants included 121 adolescents (n = 32 with BD and lifetime cannabis use (BDCB+), n = 31 with BD and no lifetime cannabis use (BDCB-), n = 58 HC with no lifetime cannabis use), aged 14-20 years. Five neurocognitive subtests of the computerized CANTAB battery were assessed. Groups were compared using an analysis of covariance (ANCOVA) covarying for age, sex, and intelligence quotient. RESULTS: The three groups differed significantly on tests of visuospatial working memory (F = 4.41, p = 0.014, ηp2=0.07) and sustained attention (F = 5.15, p = 0.007, ηp2=0.08). Post hoc analyses revealed working memory scores were significantly worse in BDCB+ versus HC (p = 0.04, d = 0.59), and sustained attention was significantly worse in BDCB- versus HC (p = 0.006, d = 0.70). CONCLUSION: These preliminary findings suggest that cannabis use among adolescents with BD is associated with working memory deficits. Future studies in larger samples are warranted to evaluate causation versus predisposition to cannabis use, and to evaluate duration, quantity, and potency of cannabis on neurocognition among adolescents with BD.


Assuntos
Transtorno Bipolar , Cannabis , Humanos , Adolescente , Transtorno Bipolar/complicações , Transtorno Bipolar/psicologia , Cannabis/efeitos adversos , Memória de Curto Prazo , Transtornos da Memória , Atenção , Testes Neuropsicológicos
8.
Artigo em Inglês | MEDLINE | ID: mdl-37420032

RESUMO

Schizophrenia (SCZ) is a severe psychotic disorder associated with premature mortality and aging. Moreover, the symptoms and progression of psychiatric disorders in general are associated with decreased lifespan, biological aging, and poorer medical outcomes. In this study, we investigated the relationship between several epigenetic clocks and scanned the entire genome for association in a cohort of SCZ individuals (n = 107). Biological age was computed from blood DNA methylation (DNAm) and tested for association against  common  variants across the genome using general linear models. Genes affecting epigenetic age acceleration in our cohort were found mainly when using the telomeric length clock rather than the other biological clocks. These findings pair with existing evidence that there are some genes associated with longevity and suggest further investigations of  putative biological mechanisms for morbidity and premature mortality, not only in patients with SCZ but also in the general population.

9.
Front Psychiatry ; 14: 1029082, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37342172

RESUMO

Background: Current literature indicates that safety measures, including lockdowns during the COVID-19 pandemic, severely disrupted our lifestyle, marked by increased screen time. The increased screen time is mostly associated with exacerbated physical and mental wellbeing. However, the studies that examine the relationship between specific types of screen time and COVID-19-related anxiety among youth are limited. Methods: We examined the usage of passive watching, social media, video games, and educational screen time and COVID-19-related anxiety at the 5-time points (Early-Spring 2021, Late-Spring 2021, Fall 2021, Winter 2022, and Spring 2022) among youth in Southern Ontario, Canada (N = 117, mean age = 16.82, male = 22%, non-White = 21%) and investigated the role of 4 types of screen time in COVID-19 related anxiety. COVID-related anxiety was measured using the Coronavirus Anxiety Scale (CAS). Descriptive statistics examined the binary relationships between demographic factors, screen time, and COVID-related anxiety. Also, partially adjusted and fully adjusted binary logistic regression analyses were conducted to examine the association between the types of screen time and COVID-19-related anxiety. Results: During the late Spring of 2021, when the provincial safety restrictions were most stringent, screen time was the highest among the 5 data collection time points. Further, adolescents experienced the highest COVID-19-related anxiety during this period. On the other hand, young adults experienced the highest COVID-19-related anxiety during Spring 2022. In a partially adjusted model (accounting for other types of screen time), engaging in 1-5 h per day on social media increased the likelihood of experiencing COVID-19-related anxiety compared to those who spend less than 1 h per day (OR = 3.50, 95%CI = 1.14-10.72, p < 0.05). Other types of screen time was not significantly associated with COVID-19-related anxiety. In a fully adjusted model (accounting for age, sex and ethnicity besides four types on screen time), 1-5 h per day of social media remained significantly associated with COVID-19-related anxiety (OR = 4.08, 95%CI = 1.22-13.62, p < 0.05). Conclusion: Our findings suggest that COVID-19-related anxiety is associated with youth engagement in social media during the COVID-19 pandemic. Clinicians, parents, and educators should work collaboratively to provide developmentally appropriate approaches to reduce the negative social media impact on COVID-19-related anxiety and promote/foster resiliency in our community during the recovery period.

10.
JAMA Psychiatry ; 80(8): 787-795, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-37256580

RESUMO

Importance: Persistent depressive symptoms, often accompanied by cognitive symptoms, commonly occur after COVID-19 illness (hereinafter termed COVID-DC, DC for depressive and/or cognitive symptoms). In patients with COVID-DC, gliosis, an inflammatory change, was suspected, but measurements of gliosis had not been studied in the brain for this condition. Objective: To determine whether translocator protein total distribution volume (TSPO VT), a marker of gliosis that is quantifiable with positron emission tomography (PET), is elevated in the dorsal putamen, ventral striatum, prefrontal cortex, anterior cingulate cortex, and hippocampus of persons with COVID-DC. Design, Setting, and Participants: This case-control study conducted at a tertiary care psychiatric hospital in Canada from April 1, 2021, to June 30, 2022, compared TSPO VT of specific brain regions in 20 participants with COVID-DC with that in 20 healthy controls. The TSPO VT was measured with fluorine F 18-labeled N-(2-(2-fluoroethoxy)benzyl)-N-(4-phenoxypyridin-3-yl)acetamide ([18F]FEPPA) PET. Main Outcomes and Measures: The TSPO VT was measured in the dorsal putamen, ventral striatum, prefrontal cortex, anterior cingulate cortex, and hippocampus. Symptoms were measured with neuropsychological and psychological tests, prioritizing outcomes related to striatal function. Results: The study population included 40 participants (mean [SD] age, 32.9 [12.3] years). The TSPO VT across the regions of interest was greater in persons with COVID-DC (mean [SD] age, 32.7 [11.4] years; 12 [60%] women) compared with healthy control participants (mean [SD] age, 33.3 [13.9] years; 11 [55%] women): mean (SD) difference, 1.51 (4.47); 95% CI, 0.04-2.98; 1.51 divided by 9.20 (17%). The difference was most prominent in the ventral striatum (mean [SD] difference, 1.97 [4.88]; 95% CI, 0.36-3.58; 1.97 divided by 8.87 [22%]) and dorsal putamen (mean difference, 1.70 [4.25]; 95% CI, 0.34-3.06; 1.70 divided by 8.37 [20%]). Motor speed on the finger-tapping test negatively correlated with dorsal putamen TSPO VT (r, -0.53; 95% CI, -0.79 to -0.09), and the 10 persons with the slowest speed among those with COVID-DC had higher dorsal putamen TSPO VT than healthy persons by 2.3 (2.30 divided by 8.37 [27%]; SD, 2.46; 95% CI, 0.92-3.68). Conclusions and Relevance: In this case-control study, TSPO VT was higher in patients with COVID-DC. Greater TSPO VT is evidence for an inflammatory change of elevated gliosis in the brain of an individual with COVID-DC. Gliosis may be consequent to inflammation, injury, or both, particularly in the ventral striatum and dorsal putamen, which may explain some persistent depressive and cognitive symptoms, including slowed motor speed, low motivation or energy, and anhedonia, after initially mild to moderate COVID-19 illness.


Assuntos
COVID-19 , Doenças Neuroinflamatórias , Humanos , Feminino , Adulto , Masculino , Microglia/metabolismo , Gliose/metabolismo , Estudos de Casos e Controles , COVID-19/complicações , COVID-19/metabolismo , Encéfalo/diagnóstico por imagem , Encéfalo/metabolismo , Tomografia por Emissão de Pósitrons/métodos , Cognição , Receptores de GABA/metabolismo
11.
J Am Acad Psychiatry Law ; 51(2): 236-246, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36997278

RESUMO

Previous studies aiming to establish a correlation between schizophrenia (SCZ) and aggressive behavior have resulted in contradictory results. Despite this, a certain degree of evidence suggests a potential underlying genetic component to aggression in SCZ. Polygenic risk score (PRS) analysis is a novel technique to estimate the combined effect of multiple genetic influences on aggression. Our objective was to investigate whether PRS could determine a proclivity toward aggressive behavior in patients with SCZ. Community-dwelling patients diagnosed with a schizophrenia spectrum disorder (n = 205) were recruited from a nonforensic outpatient sample. Participants were assessed for aggression using a cross-sectional and retrospective design, and PRS was calculated using genomic DNA and the Illumina Omni 2.5 array. We did not detect any associations between lifetime physical aggression (P = 32), verbal aggression (P = 24), or aggression against property (P = 24) and the PRS for SCZ risk. There may be several reasons to explain our null findings. We recommend that future interaction analyses of PRSs in SCZ that investigate violence focus on forensic psychiatric patients with higher base rates of violence and use participant interviews to assess aggression.


Assuntos
Esquizofrenia , Humanos , Esquizofrenia/genética , Esquizofrenia/diagnóstico , Estudos Retrospectivos , Estudos Transversais , Agressão/psicologia , Fatores de Risco
12.
J Eval Clin Pract ; 29(3): 447-458, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36752167

RESUMO

RATIONALE: Coronavirus (COVID-19)-related stressors precipitated the mental health crisis and increased substance use in Canada and worldwide. As the pandemic continues to evolve, monitoring and updating substance use-related ED visit trends is essential to ensure the stability and quality of ED services under the prolonged pandemic timeline. AIMS AND OBJECTIVES: This study examined the trends and characterization of substance use-related ED visits during the pandemic among adolescents and young adults (aged 13-25 years) in Ontario, Canada. METHODS: Descriptive statistics and binary logistic regression analyses were conducted using population-based, repeated cross-sectional data. The volume, patient characteristics (age and sex) and hospital/ED visit features (triage to end time, timing of the visit, triage level and referral source) were compared before (2019) and during COVID-19 (2020 and 2021) by each substance type (alcohol, opioid, cannabis, sedatives, cocaine, stimulants and multiple psychoactive substances). RESULTS: Substance use-related ED visits decreased by 1.5 times during the pandemic compared to the prepandemic level. However, opioid-related ED visits continued to show an increasing trend and did not recover to the prepandemic level in 2021. Moreover, a significant increase in emergent/life-threatening triage levels (Canadian Triage and Acuity Scales 1 and 2) in substance-related ED visits is alarming (2019 = 36.8%, 2020 = 38.7% and 2021 = 38.4%). We also found a general decrease in weekend visits, overnight visits and visits on statutory holidays, and substance use-related ED patients tended to stay longer (over 6 h) in the ED during the pandemic. CONCLUSION: Our findings indicate unmet substance use treatment needs due to the limited accessibility and heightened threshold for ED visits during the pandemic. Providing access to substance treatment/programs outside ED is critical to reducing substance use-related complications presenting in the ED. Also, policies addressing the pandemic-related complexities in the ED and Health Human Resource challenges are warranted.


Assuntos
COVID-19 , Transtornos Relacionados ao Uso de Substâncias , Humanos , Adulto Jovem , Adolescente , Analgésicos Opioides , Estudos Transversais , Ontário , Serviço Hospitalar de Emergência
13.
PLoS One ; 18(2): e0282056, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36812221

RESUMO

Emergency Department (ED) visits for substance-related concerns among young people have been increasing in recent years. Understanding the factors related to repeated ED visits (two or more ED visits per year) for substance use concerns among young people is critical to developing a more efficient mental healthcare system that does not overburden ED and that provides efficient care for substance use patients. This study examined trends of substance use-related ED visits and factors related to repeated ED visits (two or more ED visits per year, in comparison to one ED visit per year) among adolescents and young adults (aged 13 to 25 years) in the province of Ontario, Canada. Binary logistic regression models were conducted to examine associations between hospital-related factors (hospital size, urbanicity, triage level, ED wait time) and visit status (2+ vs 1 ED visit/year), controlling for patient characteristics (age/sex). A population-based, repeated cross-sectional data over a 10-year period (2008, 2013, and 2018) was used. The proportion of substance use-related repeated ED visits significantly and consistently increased in the year 2013 and 2018 compared to 2008 (2008 = 12.52%, 2013 = 19.47%, 2018 = 20.19%). Young adult, male, medium-sized hospital, urban location, wait times longer than 6 hours, and symptom severity was associated with increased numbers of repeated ED visits. Furthermore, polysubstance use, opioid use, cocaine use, and stimulant use were strongly associated with repeated ED visits compared with the use of substances such as cannabis, alcohol and sedatives. Current findings suggest that repeated ED visits for substance use concerns could be reduced by policies that reinforce evenly distributed mental health and addiction treatment services across the provinces in rural areas and small hospitals. These services should put special efforts into developing specific (e.g., withdrawal/treatment) programming for substance-related repeated ED patients. The services should target young people using multiple psychoactive substances, stimulants and cocaine.


Assuntos
Saúde Mental , Transtornos Relacionados ao Uso de Opioides , Humanos , Masculino , Adulto Jovem , Adolescente , Estudos Transversais , Serviço Hospitalar de Emergência , Ontário
14.
Can J Psychiatry ; 68(6): 453-460, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36537143

RESUMO

BACKGROUND: Acquired brain injury (ABI) is a serious problem that disproportionately affects individuals in correctional services, but relatively little is known about ABI risks and correlates in forensic psychiatric services. METHODS: We conducted a retrospective chart review of all admissions to a high secure forensic hospital in Ontario, Canada from January 2009 to December 2012 (n = 637) and collected data on ABI, psychiatric diagnoses, developmental disadvantage, criminal offending, and in-hospital aggression. A k-means cluster analysis was employed to assess risk factors by which men with ABI could be identified and multivariate general linear models were used to identify ABI-related differences in offending history and in-hospital aggression. RESULTS: One-fifth of the men had a documented ABI indicator. Based on our cluster analysis, ABI was more likely to be identified by greater adverse childhood experiences (ACEs), more health problems from pregnancy to childhood, and lower socioeconomic status, suggesting that ABI within the forensic context is associated with greater developmental disadvantage. Men with ABI had more serious pre-admission offences, but not more serious admission offences or in-hospital aggression. Men with ABI were more likely than those without to have higher scores on the Violence Risk Appraisal Guide or to be diagnosed with mood and personality disorders, and less likely to have a schizophrenia diagnosis, suggesting an association between ABI and general mental health pathologies but not with psychotic illness. CONCLUSIONS: The disadvantage of ABI among men in forensic psychiatric hospitals is most likely evinced in antisocial behaviour rather than serious mental illness. Given that ACEs are likely to precede or co-occur with ABI, strategies that mitigate ACEs hold promise for ABI prevention.


Assuntos
Experiências Adversas da Infância , Lesões Encefálicas , Transtornos Mentais , Masculino , Humanos , Hospitais Psiquiátricos , Estudos Retrospectivos , Transtornos Mentais/epidemiologia , Ontário/epidemiologia
16.
Psychiatr Genet ; 32(6): 214-220, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-35837683

RESUMO

OBJECTIVE: Schizophrenia (SCZ) is a debilitating disease with a complex genetic cause in which age at onset may reflect genetic vulnerability. Though there has been some association between genetic polymorphisms and age of onset, there has been little exploration of the role of epigenetic processes. We sought to explore the influence of DNA methylation, a key epigenetic mechanism, and its association with the age of onset of illness. METHODS: One hundred thirty-eight participants aged 18-75 years and previously diagnosed with SCZ spectrum disorders by the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders (SCID DSM-5) were recruited. Venous blood was collected and genome-wide DNA methylation was quantified using the Illumina Infinium HumanMethylation450 BeadChip array. Individual CpG sites and regions of differential methylation were explored by the age of onset; covariates included age, sex, as well as white blood cell composition. RESULTS: Binary grouping (early vs. late onset) revealed four intergenic CpG sites on chromosome 2 that were above the expected P-value threshold, with hypermethylation of the CpG site cg10392614 most strongly associated with early-onset SCZ. The four most strongly associated CpG sites, including cg 10392614, were intergenic. Continuous analysis revealed the top CpG site to be cg11723066 , which is linked to the JAM3 gene, with hypomethylation associated with earlier onset; however, results were below the expected P-value threshold. CONCLUSION: Studies on DNA methylation in the first-episode psychosis population may help further our understanding of the role of epigenetics in the age of onset of SCZ.


Assuntos
Esquizofrenia , Humanos , Ilhas de CpG/genética , Esquizofrenia/genética , Metilação de DNA/genética , Epigenômica , Regiões Promotoras Genéticas , Epigênese Genética , Estudo de Associação Genômica Ampla
17.
Int J Mol Sci ; 23(9)2022 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-35562885

RESUMO

An emerging body of literature demonstrates differences in the gut microbiome (GMB) of patients with major depressive disorder (MDD) compared to healthy controls (HC), as well as the potential benefits of prebiotic, probiotic, and synbiotic treatment. We conducted a systematic review of 24 observational studies (n = 2817), and 19 interventional trials (n = 1119). We assessed alpha diversity, beta diversity, and taxa abundance changes in patients with MDD relative to HC, as well as the effect of prebiotics, probiotics, and synbiotics on depressive symptoms in individuals with clinical or subclinical depression. We observed no significant differences in alpha diversity but a significant difference in beta diversity between patients with MDD and HC. There were fluctuations in the abundance of specific taxa in patients with MDD relative to HC. Probiotic and synbiotic, but not prebiotic, treatment showed a modest benefit in reducing depressive symptoms in patients with MDD over four to nine weeks. The GMB profiles of patients with MDD differ significantly from HC, but further studies are needed to elucidate the benefits of prebiotic, probiotic and synbiotic treatments relative to antidepressants and over longer follow-up before these therapies are implemented into clinical practice.


Assuntos
Transtorno Depressivo Maior , Microbioma Gastrointestinal , Probióticos , Simbióticos , Depressão/terapia , Transtorno Depressivo Maior/tratamento farmacológico , Humanos , Prebióticos , Probióticos/uso terapêutico
18.
Behav Sci Law ; 40(2): 331-350, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35575169

RESUMO

Individuals with borderline personality disorder (BPD) or antisocial personality disorder (ASPD) are overrepresented in forensic settings. Yet, despite the burden these disorders place on healthcare and criminal justice systems, there remains a lack of evidence-based pharmacological treatments. Epidemiological data have shown that comorbid cannabis use disorders are common in BPD and ASPD. ∆9 -Tetrahydrocannabinol, the primary psychoactive constituent of cannabis, is an exogenous cannabinoid that stimulates the endocannabinoid system (ECS). Hence, an investigation of the ECS in these conditions is warranted. This scoping review screened 105 records and summarized the extant research on the ECS in ASPD (n = 69) and BPD (n = 61) participants. Preliminary results suggest that alterations of the ECS may be present in these disorders. Although research examining the ECS in personality disorders is still in its infancy, more research is warranted given initial positive findings.


Assuntos
Transtorno da Personalidade Borderline , Transtornos Relacionados ao Uso de Substâncias , Transtorno da Personalidade Antissocial/epidemiologia , Transtorno da Personalidade Borderline/epidemiologia , Transtorno da Personalidade Borderline/terapia , Comorbidade , Endocanabinoides , Humanos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia
19.
Int J Law Psychiatry ; 82: 101780, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35279456

RESUMO

Health care organizations are obligated to provide safe and effective treatment to their patients and also protect the safety of their workers. This paper analyzes the tensions arising from legislative regimes that, respectively, protect privacy and workplace safety, using a large, tertiary high-secure forensic psychiatric hospital in Ontario, Canada, as an example. In Ontario, the Personal Health Information Protection Act (PHIPA) prohibits personal health information (PHI) from being disclosed to individuals who fall outside the "circle of care," including nonclinical employees who have direct involvement with patients and may be at risk of violence. PHIPA permits the disclosure of information where there is a risk of violence, but the statute's scheme for privacy protection was not designed to address, and may not be compatible with, the operations and requirements of high-secure forensic and other psychiatric hospitals. At the same time, the Occupational Health and Safety Act (OHSA) creates a regulatory framework that sets health and safety standards, including an employer's duty to disclose the risk of violence. OHSA prosecutions and proceedings demonstrate how these duties have been enforced against psychiatric hospitals. We examine this regulatory backdrop, explaining that PHIPA provides little guidance to psychiatric hospitals, where the risk of violence is elevated. We also discuss issues of dual compliance that arise from a hospital's legal obligations under PHIPA and OHSA. Finally, we turn to the ongoing clinical and operational challenges, suggesting strategies for increasing staff safety. These include strengthening the therapeutic alliance and providing patients with the option of consenting to disclosure of PHI to those outside the circle of care.


Assuntos
Hospitais Psiquiátricos , Privacidade , Humanos , Ontário , Local de Trabalho
20.
Healthc Policy ; 17(3): 49-64, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35319444

RESUMO

BACKGROUND: Notably higher rates of mental health issues have been reported among healthcare providers (HCPs) during the COVID-19 pandemic. Concerns over the impact of policy decisions on the well-being of HCPs is growing, yet it remains underexplored in the literature. METHOD: HCPs from a 301-bed mental health hospital and a 408-bed acute care community hospital, both located in central Ontario, participated in interviews (N = 30) and answered open-ended questionnaires (N = 88) to provide their experiences with the COVID-19 pandemic. RESULTS: Using interpretive description methods, we found that public health policies and other strategies intended to mitigate COVID-19 transmission variably impacted HCP well-being and professional practice. DISCUSSION: Pandemic-related policies contributed to HCP stress by changing the healthcare environment and clinical practice. Understanding HCP experiences is key for leaders, policy makers and health system planners to deal with the current state, recovery and preparation for future pandemics. Direct input into policy development, implementation and evaluation from HCPs may support their well-being.


Assuntos
COVID-19 , Pandemias , COVID-19/epidemiologia , Pessoal de Saúde/psicologia , Humanos , Políticas , Formulação de Políticas
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