The role of the psychedelic experience in psilocybin treatment for treatment-resistant depression.

Objective: To determine the relationships between psilocybin dose, psychedelic experiences, and therapeutic outcome in treatment-resistant depression.

Methods: For treatment-resistant depression, 233 participants received a single dose of 25, 10, or 1 mg of COMP360 psilocybin (a proprietary, pharmaceutical-grade synthesized psilocybin formulation, developed by the sponsor, Compass Pathfinder Ltd.) with psychological support.

Trends in Opioid Use Disorder in the Veterans Health Administration, 2005-2022.

Importance: Given the personal and social burdens of opioid use disorder (OUD), understanding time trends in OUD prevalence in large patient populations is key to planning prevention and treatment services.

Objective: To examine trends in the prevalence of OUD from 2005 to 2022 overall and by age, sex, and race and ethnicity.

Design, Setting, And Participants: This serial cross-sectional study included national Veterans Health Administration (VHA) electronic medical record data from the VHA Corporate Data Warehouse.

Neighborhood Factors as Correlates of Alcohol Use in the N2 Cohort Study of Black Sexually Minoritized Men and Transgender Women.

Sexually minoritized men (SMM), transgender women (TW), and particularly Black SMM and Black TW may be disproportionately impacted by alcohol-related problems. Few studies have empirically examined neighborhood factors that may contribute to alcohol use, specifically among these populations. Using data from the N2 longitudinal cohort study in Chicago, IL, survey data from the second wave of longitudinal assessment (n = 126) and GPS mobility data from enrollment were used to evaluate neighborhood alcohol outlet availability, neighborhood disorder, and neighborhood poverty as correlates of individual alcohol use.

Implementing interpersonal psychotherapy globally: a content analysis from 31 countries.

While there is ample evidence for the efficacy of IPT, confirmed through the results of the efficacy review, on the ground implementation factors are less well understood. We compiled a book on the global reach of IPT by requesting contributions from local authors through word-of-mouth methods. This approach resulted in reports from 31 countries across six continents and 15 diverse populations within the US that spanned the age range and types of usage.

A Reference Tissue Implementation of Simultaneous Multifactor Bayesian Analysis (SiMBA) of PET Time Activity Curve Data.

PET analysis is conventionally performed as a two-stage process of quantification followed by analysis. We recently introduced SiMBA (Simultaneous Multifactor Bayesian Analysis), a hierarchical model that performs quantification and analysis for all brain regions of all individuals at once, and in so doing improves both the accuracy of parameter estimation as well as inferential efficiency. However until now, SiMBA has only been implemented for the two-tissue compartment model.

Cross-species RNAi therapy via AAV delivery alleviates neuropathic pain by targeting GCH1.

Tetrahydrobiopterin (BH4) expression is normally strictly controlled; however, its intracellular levels increase considerably following nerve damage. GTP cyclohydrolase I (GCH1) plays a crucial role in regulating BH4 concentration, with an upregulation observed in the dorsal root ganglion in cases of neuropathic pain. In this study, we aimed to develop and evaluate the clinical potential of an RNA interference-based adeno-associated virus (AAV) targeting GCH1 across various species to decrease BH4 levels and, consequently, alleviate neuropathic pain symptoms.

Maternal vitamin B12 during pregnancy and schizophrenia in offspring.

Background: Maternal nutritional deficiency is linked with several adverse outcomes in offspring but the link between maternal vitamin B12 levels and offspring schizophrenia remains unexplored.

Methods: In this nationwide population-based nested case-control design, 1145 schizophrenia cases were born between 1987-1997 and diagnosed by 2017 and each case were matched with a control. Maternal vitamin B12 levels during the first and early second trimesters of pregnancy were measured using chemiluminescence microparticle immunoassay from maternal sera.

Neural Markers of Treatment Response in Pediatric Anxiety and PTSD.

Pediatric anxiety disorders and post-traumatic stress disorder (PTSD) are associated with elevated threat sensitivity and impaired emotion regulation, accompanied by dysfunction in the neural circuits involved in these processes. Despite established treatments like cognitive behavioral therapy (CBT) and selective serotonin reuptake inhibitors, many children do not achieve remission, underscoring the importance of understanding the neurobiological underpinnings of these disorders. This review synthesizes current research on the neural predictors of treatment response and the neurofunctional changes associated with treatment in pediatric anxiety and PTSD during threat and reward processing.

Intestinal Epithelial Serotonin as a Novel Target for Treating Disorders of Gut-Brain Interaction and Mood.

Background & Aims: Mood disorders and disorders of gut-brain interaction (DGBI) are highly prevalent, commonly comorbid, and lack fully effective therapies. Although selective serotonin reuptake inhibitors (SSRIs) are first-line pharmacological treatments for these disorders, they may impart adverse effects, including anxiety, anhedonia, dysmotility, and, in children exposed in utero, an increased risk of cognitive, mood, and gastrointestinal disorders. SSRIs act systemically to block the serotonin reuptake transporter and enhance serotonergic signaling in the brain, intestinal epithelium, and enteric neurons.

The Reliability of Assessing Gender Minority Status Based on Gender Identity and Sex Assigned at Birth in the African Context: Findings from the HIV Prevention Trials Network 075 Study.

This study evaluated the reliability of assessing transgender status in African populations using questions about current gender identification and sex assigned at birth. Data were obtained from the HIV Prevention Trials Network 075, a study designed to assess the feasibility of recruiting and retaining 400 men who have sex with men (MSM) in a 1-year prospective cohort study in Kenya, Malawi, and South Africa and conducted from 2015 to 2017. We compared responses of 401 participants to questions about gender identity obtained at the screening and enrollment visits and, for a subset of participants, in open interviews 6-9 months after enrollment.

Researchers' agency and the boundaries of global mental health: perspectives from and about Latin America.

The decolonise global health movement has critically reassessed the field's historical and political underpinnings, urging researchers to recognise biases and power imbalances through reflexivity and action. Genuine change is seen as the outcome of the researcher's self-awareness, often leaving the underlying structures of global health-and global mental health (GMH)-in the background. Here, we problematise how expectations around agency and change have been mobilised in discussions around decolonisation, highlighting the gradual and contingent nature of international collaboration in GMH.

Prenatal exposure to selective serotonin reuptake inhibitors and risk of disorders of gut-brain interaction in children.

Preclinical data suggest that gestational exposure to selective serotonin reuptake inhibitors (SSRI) alter gut innervation, and delays colonic motility. In this study we investigated associations between gestational SSRI exposure and offspring disorders of gut-brain interaction (DGBI). Using population-based registries, we included all single-birth Danish children born 1997-2015 with follow-up until outcome occurrence, age 15 years, death, emigration, or December 2018.

A conceptual framework for assessing implementation strategy integrity.

Background: The outcomes of planned implementation efforts have been mixed, with some applications failing to achieve the desired change or impact. While reasons for mixed findings in implementation research are multifaceted (e.g.

Translation and cross-cultural adaptation of a portuguese version of the eating disorder assessment for DSM-5 (EDA-5) for Brazil and Portugal.

The EDA-5 was translated from English to Portuguese, followed by a cross-cultural adaptation for use in Brazil and Portugal. Two independent translators worked on the Brazilian and European Portuguese versions, which were then reviewed to create a harmonized version. This version was back-translated into English and approved by the original author.

A Preliminary Pharmacokinetic Comparison of Δ-9 Tetrahydrocannabinol and Cannabidiol Extract Versus Oromucosal Spray in Healthy Men and Women.

Few studies have directly compared the bioavailability of different cannabinoid formulations. Our goal was to assess the pharmacokinetic parameters and relative bioavailability of two Δ9-tetrahydrocannabinol:cannabidiol (THC:CBD) formulations: orally administered THC:CBD extract and oromucosally administered nabiximols. This pilot crossover study counterbalanced (1) 1 mL of orally administered THC:CBD extract (10 mg/mL each of THC and CBD in grapeseed oil) and (2) oromucosally administered nabiximols (four sprays of 2.

Siblings' similarity in neural responses to loss reflects mechanisms of familial transmission for depression.

Having a depressed first-degree relative is one of the most replicated risk factors for depression. Research on the familial transmission of depression, however, has largely ignored siblings, even though sibling relationships are commonplace and characterized by frequent and intense emotions. It has been suggested that frequent contacts in close relationships lead to similarities in emotions and cognitions over time, a process underpinned by biobehavioral synchrony.

Sex Differences in Antidepressant Acceptability According to Filled Prescription Sequences in a Nationwide Cohort Study.

The prevalence of depressive and anxiety disorders is higher in women than in men. In contrast, there is still no clear consensus on the existence of sex-related differences in the effectiveness of antidepressant treatments for these disorders. This real-world study used filled prescription sequences to compare antidepressant medications between women and men at a medication level according to their acceptability (ie, combination of efficacy and tolerability).

Venlafaxine treatment is associated with improved mood, but not decreased cocaine self-administration, in depressed people who use cocaine.

Individuals seeking treatment for their cocaine use often report depressive systems and nearly half meet criteria for major depressive disorder (MDD). This descriptive study aimed to assess the effects of the antidepressant venlafaxine alone and in combination with gabapentin on depressive symptoms, subjective effects of cocaine, and cocaine self-administration in depressed and non-depressed people who use cocaine. The effects of medication condition on mood and on the effects of smoked cocaine were compared between a group of clinically depressed people who use cocaine (n = 5) and a control group of non-depressed people who use cocaine (n = 5) using laboratory-based measures.