Objective: The diversity and potency of cannabis products have increased in recent years, underscoring the importance of understanding which products are being used and why. Patients with substance use disorders (SUDs) use have a high prevalence of risky cannabis use, making it especially important to understand use patterns in this group. We aimed to first describe cannabis product characteristics and then explore reasons for choosing products in our sample.
View Article and Find Full Text PDF: Cannabis use is common among individuals with substance use disorders (SUDs), yet its relationship with mental health characteristics in treatment-seeking populations remains unclear. : This study examined associations between cannabis use and mental health in patients seeking SUD treatment, to understand whether cannabis use relates to clinical characteristics relevant to SUD care. : A cross-sectional online survey was completed by 544 patients in Ontario, Canada seeking treatment for any SUD (including cannabis use disorder).
View Article and Find Full Text PDFCan J Psychiatry
May 2025
BackgroundThis paper reports a pilot trial of culturally adapted CBT (CaCBT) for Canadian South Asians. The primary objective of this study was to assess the feasibility and acceptability of online CaCBT to treat anxiety and depression in Canadian South Asian individuals. The secondary objective was to measure changes in depression, anxiety, and disability.
View Article and Find Full Text PDFWe aimed to describe long-term use trajectories and predictors prior to recreational cannabis legalization in people with HIV in Ontario, Canada. We analysed interview data from the prospective Ontario HIV Treatment Network Cohort Study from 2008 to 2017. We conducted Latent Class Growth Analyses to describe cannabis use trajectories and chi-square tests to identify trajectory group predictors.
View Article and Find Full Text PDFObjectives: Alcohol use is one of the leading causes of death and disability globally; however, access to evidence-based care for alcohol use disorder (AUD) is limited. Although telemedicine-based interventions promise to expand treatment access, there are no validated telemedicine-based interventions for alcohol withdrawal management. In this single-arm study, we sought to determine the feasibility of delivering symptom-triggered alcohol withdrawal management over telemedicine.
View Article and Find Full Text PDFObjectivesChildren with externalizing disorders commonly show emotion dysregulation and callous-unemotional (CU) traits. However, it is unclear whether emotion dysregulation and CU traits share underlying neurobiology that can be predictive of psychosocial treatment outcomes. In this preliminary study, we examined neural correlates of externalizing psychopathology dimensions and their prediction of treatment outcomes.
View Article and Find Full Text PDFUnderstanding the current state of equity, diversity, and inclusion (EDI) within the crisis line sector is essential to enhancing accessibility and acceptability of crisis line services for all. Through an intersectional lens, we examined 9-8-8 crisis line workers' personal and work demographics, training, resources, perceived competencies in supporting diverse populations. We conducted an electronic survey of crisis line responders and leadership in Canada.
View Article and Find Full Text PDFObjective: Since the federal Canadian government legalized cannabis in 2018, cannabis use in the general population has slightly increased. However, little is known about the impact of cannabis legalization on pattens of cannabis use in psychiatric populations.
Method: We studied changes in daily/almost daily and average 30-day cannabis use amongst individuals currently using cannabis who reported past 12-month experiences of specific mental health disorders and among those without past 12-month experiences of any mental health disorder before and after Canadian legalization of recreational cannabis use ( = 13,527).
Background: The onset of the COVID-19 pandemic precipitated a rapid shift to virtual care in health care settings, inclusive of mental health care. Understanding clients' perspectives on virtual mental health care quality will be critical to informing future policies and practices.
Objective: This study aimed to outline the process of redesigning and validating the Virtual Client Experience Survey (VCES), which can be used to evaluate client and family experiences of virtual care, specifically virtual mental health and addiction care.
Transgender people have been experiencing significant advancements in their social visibility, although they continue to face frequent discrimination and exclusion. Among the issues encompassing transgender individuals' health care, the right to reproductive and sexual health have gained traction in the study landscape, necessitating an exploration of fertility preservation options for these patients. This report sheds light on the process of cryopreserving gametes and ovarian tissue after total hysterectomy with bilateral salpingo-oophorectomy for gender reassignment in a transgender man in hormonal masculinization.
View Article and Find Full Text PDFHealthcare (Basel)
November 2024
Background/objectives: In the literature, few instruments have been identified to measure the stigma of health professionals toward people with mental illness. In Brazil, until 2021, the literature did not indicate the validation of an instrument or the construction of an instrument for this purpose. Considering this gap, this study aimed to validate and estimate the reliability of the Mental Illness: Clinicians' Attitudes Scale, version 4 (MICA-4) for the Brazilian context, examining the psychometric properties through the analysis of its internal consistency and factor structure.
View Article and Find Full Text PDFBackground: Atypical sensory reactivity is a cardinal presentation in autism. Within the tactile domain, atypical tactile reactivity (TR) is common, it emerges early, persists into adulthood, and impedes social interaction and daily functioning. Hence, atypical TR is a key target for biological intervention to improve outcomes.
View Article and Find Full Text PDFBehav Sci (Basel)
September 2024
Cognitive decline is a public health concern affecting about 50 million individuals worldwide. Neuroticism, defined as the trait disposition to experience intense and frequent negative emotions, has been associated with an increased risk of late-life cognitive decline. However, the underlying biological mechanisms of this association remain unknown.
View Article and Find Full Text PDFExternalizing psychopathology in childhood is a predictor of poor outcomes across the lifespan. Children exhibiting elevated externalizing symptoms also commonly show emotion dysregulation and callous-unemotional (CU) traits. Examining cross-sectional and longitudinal neural correlates across dimensions linked to externalizing psychopathology during childhood may clarify shared or distinct neurobiological vulnerability for psychopathological impairment later in life.
View Article and Find Full Text PDFObjective: The aim of this study was to evaluate the success rate and predictors of labor induction using vaginal misoprostol in a low-risk pregnant women population.
Methods: A prospective cohort study was carried out with 196 pregnant women. Groups 2 and 4 of the Robson Classification admitted for induction of labor with vaginal misoprostol (25 μg tablets every 6 h, up to 4 tablets, for a maximum of 24 h).
Given that anxiety disorders (AD) are associated with reduced vagally-mediated heart rate variability (HRV), genetic variants related to HRV may provide insight into anxiety etiology. This study used polygenic risk scores (PRS) to explore the genetic overlap between AD and HRV, and investigated whether HRV-related polymorphisms influence anxiety risk. Resting vagally-mediated HRV was measured using a wearable device in 188 European individuals (AD=101, healthy controls=87).
View Article and Find Full Text PDFBackground: With increases in cannabis use and potency, there is a need to improve our understanding of the impact of use on cognitive function. Previous research indicates long-term cannabis use may have a negative effect on executive function. Few studies have examined persistence of it in protracted abstinence, and there is limited evidence of predictors of worse cognitive function in current and former users.
View Article and Find Full Text PDFBackground: Although genetic and environmental factors are involved in the aetiology of bipolar disorder [BD], studies focused on their interplay are lacking. The current investigation examines interactions and correlations between polygenic risk scores [PRS] for BD and major depressive disorder [MDD] with stressful life events [SLEs] in liability for BD.
Methods: This study used data from 1715 participants (862 bipolar cases and 853 controls) taken from UK and Canadian samples.
Drug Alcohol Depend
February 2024
Background: The impacts of cannabis legalization on driving under the influence of cannabis and driving under the influence of alcohol among adults and adolescents were examined in Ontario, Canada.
Methods: Data were sourced from adult (N=38,479) and adolescent (N=23,216) populations-based surveys (2001-2019). The associations between cannabis legalization and driving within an hour of using cannabis and driving within an hour of drinking two or more drinks of alcohol were quantified using logistic regression, with testing of multiplicative interactions between cannabis legalization and age and sex.
Neuropsychopharmacology
March 2024
While pharmacological, behavioral and psychosocial treatments are available for substance use disorders (SUDs), they are not always effective or well-tolerated. Neuromodulation (NM) methods, including repetitive transcranial magnetic stimulation (rTMS), transcranial direct current stimulation (tDCS) and deep brain stimulation (DBS) may address SUDs by targeting addiction neurocircuitry. We evaluated the efficacy of NM to improve behavioral outcomes in SUDs.
View Article and Find Full Text PDFDelay discounting is a tendency to devalue delayed rewards compared to immediate rewards. Evidence suggests that steeper delay discounting is associated with psychiatric disorders across diagnostic categories, but it is unclear whether steeper delay discounting is a risk factor for these disorders. We examined whether children at higher risk for psychiatric disorders, based on family history, would demonstrate steeper delay discounting behavior using data from the Adolescent Brain Cognitive Development (ABCD) study, a nationally representative sample of 11,878 children.
View Article and Find Full Text PDFEarly adolescence is a crucial time for understanding and detecting the risk factors that may influence youth externalizing/disruptive behaviors and disorders. Previous literature reported evidence that risk factors for disruptive behaviors include ( Val158Met (rs4680) polymorphism and environmental influences. An unanswered question is whether there is a change in these risk factors over stages of youth development.
View Article and Find Full Text PDFIntroduction: Cannabis legalisation was enacted on 17 October 2018 in Canada. Accordingly, the effects of cannabis legalisation on patterns of cannabis consumption were examined among adolescents, including on cannabis initiation, any cannabis use, daily cannabis use and cannabis dependence.
Methods: Data from a biennial population-based, cross-sectional survey of students in Ontario were pooled in a pre-post design (2001-2019; N = 89,238).