Psychotropic Research Articles

Clinical profiles and functional outcomes in elderly stroke survivors undergoing neurorehabilitation: a retrospective cohort study

BackgroundThis retrospective study characterizes clinical profiles and evolution of elderly stroke patients undergoing neurorehabilitation. Additionally, it identifies predictors of functional outcomes and hospital length of stay (LOS). For this purpose, patients aged ≥ 60 years admitted for neurorehabilitation within 6 months post-stroke, were recruited between January 2015 and August 2022. Rehabilitation profiles were identified using two-step clustering analysis, including the Modified Rankin Score (mRS), the National Institutes of Health Stroke Scale (NIHSS) and the motor and cognitive Functional Independence Measure (m-FIM and c-FIM) upon admission. FIM-effectiveness was calculated as (FIM-discharge−FIM-admission)/(maximum FIM−FIM-admission). Linear regression analyses were conducted to identify predictors of functional outcomes and LOS (days).ResultsThe study enrolled 104 patients (68 male; mean age = 69.45 ± 6.5 years). Three clusters were identified: “Moderate” [NIHSS = 7.70 ± 3.21, motor-FIM = 59.42 ± 12.24, cognitive-FIM = 26.96 ± 4.69, mRS = 4 (4–4), aphasia = 41.7%, severe dysphagia = 4.2%, LOS = 45 (33.25–59) days]; “Moderate-severe” [NIHS = 10.40 ± 3.23, motor-FIM = 28.00 ± 7.74, cognitive-FIM = 25.92 ± 6.55, mRS = 4 (4–5), aphasia = 13%, severe dysphagia = 6.4%, LOS = 61 (45–92) days]; and “Severe” group [NIHS = 18.76 ± 4.19, motor-FIM = 16.12 ± 6.69, cognitive-FIM = 10.58 ± 4.14, mRS = 5 (5–5), aphasia = 60.6%, severe dysphagia = 42.4%, LOS = 71 (60.5–97.5) days]. The motor and cognitive FIM effectiveness significantly improved in the “Moderate” (m-FIM-effectiveness = 33.70 [12.16–53.54]; c-FIM-effectiveness = 33.3 [0–50.0]) and “Moderate-severe” cluster (m-FIM-effectiveness = 31.15 [10.34–46.55]; c-FIM-effectiveness = 33.3[0–63.16]) compared to the “Severe” cluster (m-FIM-effectiveness = 5.77 [0–18.77]; c-FIM-effectiveness = 4.65 [0–22.30]) (p = 0.001 and p = 0.025), whereas aphasia and dysphagia improved in all groups (p > 0.1). Severe stroke (NIHSS) (β = 0.33, p < 0.001), greater functional dependence (mRS) (β = 0.24, p = 0.013), presenting dysphagia (β = 0.30, p = 0.002), neuropathic pain (β = 0.22, p = 0.02), depression (β = 0.29, p = 0.003) or in-hospital infections (β = 0.23, p = 0.02) predicted higher LOS.ConclusionsPatient clustering proves valuable in identifying distinct stroke rehabilitation profiles. Low FIM on admission, severe dysphagia, in-hospital infections, and psychotropic medication use, predicted poor functional outcomes and longer hospitalization.

Suspicion of needle pricking/spiking in 2022 in Paris, France, an observational study from the Department of Forensic Medicine

BackgroundNeedle pricking, the act of being intentionally pricked by an assailant, and needle spiking, the covert injection of substances using a needle, have historical precedents and recently resurfaced in Europe in 2022. This resurgence presented a challenge for emergency and forensic medicine departments. MethodsWe conducted a retrospective study in the forensic medicine department of Paris, France, including all patients who consulted for suspected needle pricking/spiking in 2022, following a police report. The study aimed to provide epidemiological data on victims, circumstances, and the results of toxicologic and serological analyses. FindingsOf all assault victims in 2022, patients reporting or suspecting needle pricking/spiking represented 1.2 % of the total (171 cases). Most cases involved women (81.9 %) with a median age of 21.75 years. Incidents often occurred in festive contexts (84.8 %). Over a third of the patients didn't report any symptoms (37.5 %). Amnesia, nausea, and dizziness were common symptoms among those who did. Patients reporting alcohol consumption were more likely to experience symptoms (p < 0.05). Over half of the patients displayed physical examinations consistent with needle pricking, with pricks mostly on their arms. Not all patients underwent toxicologic analyses (30.6 %), but all results were negative. Despite most patients not providing follow-up serology results, all received results were negative. InterpretationOverall, our data are more suggestive of needle pricking than spiking. Although women were overrepresented, there was no evidence of sexual motivation on the part of the perpetrators. It's possible that the perpetrators wanted to instill fear in the population without a specific goal. This form of violence necessitates preventive measures in festive venues and enhanced efforts to detect psychoactive substance.

O PARADOXO DO SOBREDIAGNÓSTICO DO TDAH E SUAS CONSEQUÊNCIAS

Attention Deficit Hyperactivity Disorder (ADHD) is defined as a psychomotor developmental disorder that is characterized by a persistent pattern of inattention and/or hyperactivity and/or impulsivity. Currently, it is observed that discrete signs of psychological distress tend to be classified as pathological, initiating the early use of psychotropic drugs. In this sense, given that the increase in medicalization becomes alarming in adults, the scenario becomes even more serious in the children’s situation, in view of the child’s motor and neuropsychic immaturity. The present study aims to analyze and discuss the increase in the diagnosis of ADHD in the last decade and the consequent hypermedicalization of children. The methodology used was a literature review of a quantitative nature, through searches in PubMed, Scielo and Google Scholar, with publication date from 2010. Regarding the results, it was observed: increase in overdiagnosis and overmedicalization in around 25% of the evaluated studies; approximately 40% of the articles highlighted the importance of carrying out training projects for health professionals to make more accurate diagnoses and more effective treatments; around 25% of the articles concluded that methylphenidate, from the amphetamine group, has benefits and that it increases quality of life, even though it has side effects. Finally, it is concluded that it is necessary to analyze and propose training strategies for health professionals, in addition to implementing a more efficient multidisciplinary work together with family educators, in order to assess the real need for the diagnosis, performing it in a more efficient way. efficient and avoid unnecessary medicalization of children and adolescents who do not fit the ideal diagnostic criteria for ADHD.

A novel open-access artificial-intelligence-driven platform for CNS drug discovery utilizing adult zebrafish

BackgroundAlthough zebrafish are increasingly utilized in biomedicine for CNS disease modelling and drug discovery, this generates big data necessitating objective, precise and reproducible analyses. The artificial intelligence (AI) applications have empowered automated image recognition and video-tracking to ensure more efficient behavioral testing. New methodCapitalizing on several AI tools that most recently became available, here we present a novel open-access AI-driven platform to analyze tracks of adult zebrafish collected from in vivo neuropharmacological experiments. For this, we trained the AI system to distinguish zebrafish behavioral patterns following systemic treatment with several well-studied psychoactive drugs - nicotine, caffeine and ethanol. ResultsExperiment 1 showed the ability of the AI system to distinguish nicotine and caffeine with 75 % and ethanol with 88 % probability and high (81 %) accuracy following a post-training exposure to these drugs. Experiment 2 further validated our system with additional, previously unexposed compounds (cholinergic arecoline and varenicline, and serotonergic fluoxetine), used as positive and negative controls, respectively. Comparison with existing methodsThe present study introduces a novel open-access AI-driven approach to analyze locomotor activity of adult zebrafish. ConclusionsTaken together, these findings support the value of custom-made AI tools for unlocking full potential of zebrafish CNS drug research by monitoring, processing and interpreting the results of in vivo experiments.

Responding to existential distress at the end of life: Psychedelics and psychedelic experiences and/ as medicine

This essay engages with the (re)emergence of psychedelic medicine and the idea of psychedelics drugs and the experiences they induce as a developing therapeutic modality. It does so in the context of the provision of psychedelics to terminally ill patients experiencing existential distress as they approach the end of their lives. Reflecting on such suggestions facilitates an examination of a specific aspect of psychedelics and/ as medicine (or palliative care), namely questions of meaning and meaninglessness. Understood as impacting one’s ability to make or realise meaning in life, existential distress commonly entails a degree of demoralisation. In some cases, individuals can be thought of as inhabiting (and being inhabited by) a sense of meaninglessness. In contrast, the experiences psychedelics seem to induce are often imbued with a great deal of meaning, a sense of which seems to continue long after the psychoactive effects of such drugs have ceased. Whilst briefly considering whether or not meaning can properly be thought of as a matter for healthcare or a medical concern, this paper seeks to highlight some of the implications that the advent of psychedelic medicine might have. By way of a conclusion, I enjoin bioethics in recognising itself as a meaningful cultural discourse that is implicated in the future(s) of medicine, psychedelics and being human.

1-Benzhydryl-piperazine: Isolation, structure determination, and in silico studies for a novel potential narcotic agent detected in sports supplements

Adulteration of sports supplements poses significant health risks, necessitating stringent regulatory oversight. This study investigates deceptive practices by manufacturers, including concealment of formulations and manipulation of label information, impacting a wide demographic beyond elite athletes. Cinnarizine (CIN), and its degradation product, 1-benzhydryl-piperazine (BHP), which has amphetamine-like effects, are detected for the first time in 8 out of 41 sports supplements. An HPTLC method was developed to quantify CIN, and validated with specificity, linearity, the limit of detection (LOD), the limit of quantification (LOQ), accuracy, and precision studies. The linear range was between 50–800 ng spot−1. LOD and LOQ were 15 and 50 ng spot−1, respectively. The average recovery was calculated as 88.32 %, and %RSD values were less than 4 %. CIN’s degradation products were detected using GC-MS. CIN's decomposition into BHP also was confirmed via NMR analysis. Molecular docking studies revealed BHP's superior binding affinity and stability compared to 1-benzyl-piperazine (BZP), a prohibited narcotic agent, for dopamine and serotonin receptors, indicating potent psychoactive effects. Molecular dynamics simulations further elucidated interaction patterns, highlighting BHP's robust binding and potential for abuse, necessitating regulatory scrutiny and potential reevaluation of its legal status. It is also the first in silico study to compare BHP with BZP in terms of receptor interactions, which makes it pioneering. This study emphasizes the critical need for regulatory vigilance in the sports supplement industry to ensure consumer safety. Methodologies developed here for detecting adulterants provide foundational tools for future research aimed at enhancing public health protections against adulterated supplements. Regulatory collaboration and enhanced quality controls are essential to mitigate risks associated with deceptive practices and ensure the well-being of consumers.

Challenging behaviour, the application of restrictive measures and psychotropic drug prescription in people with intellectual disabilities

BackgroundPrescribing of psychotropic drugs (PDs) and applying restrictive measures are both frequently used in managing challenging behaviour of people with intellectual disabilities (ID), which is not always according to guidelines or good clinical practice. AimsThis study aimed to investigate the potential triangular relationship between challenging behaviour, the application of restrictive measures and PD prescription. Methods and proceduresIn this cross-sectional study, data on challenging behaviour, PD prescription and restrictive measures were collected. We defined and compared four mutually exclusive groups of participants. Outcomes and resultsChallenging behaviour in the group in whom one or more PD were prescribed as a restrictive measures (PDRM) was more severe than in the other three groups. More severe challenging behaviour, a higher number of antipsychotics, antidepressants and anxiolytics/hypnotics prescriptions, a lower dosage, and more application of domotics as restrictive measure was shown in the PDRM compared to the group in whom PDs were prescribed according to guidelines (PDNRM). Conclusions and implicationsWe did not find indications for a triangular relationship of challenging behaviour, the application of restrictive measures and PD prescriptions. Future longitudinal research is needed to better understand this complex relationship and should investigate the indication and the effect of treatment. What this paper adds?This study is a first exploration of the potential triangular relationship between symptoms of challenging behaviour, psychotropic drug (PD) prescription, and the application of restrictive measures. Prescribing PDs and applying restrictive measures are two interventions which are commonly used to manage challenging behaviour in people with intellectual disabilities. Both have been subject of research separately in recent years. However, it is conceivable that the PD prescription in treatments for challenging behaviour could be a substitute for another form of a restrictive measure, for example a physical or mechanical restraint. For this purpose, we defined and compared four mutually exclusive groups of participants. We found no indication for this triangular relationship. On the other hand, we found the highest severity of challenging behaviour in the group who used PDs as restrictive measure next to other restrictive measures. Our results may suggest that both prescribing PDs and applying non-pharmacological restrictive measures are used simultaneously in managing challenging behaviour, are not sufficiently implemented or effective.

Variations in Dispensing Psychotropic Drugs to Adolescents Depending on School Periods: A French Nationwide Retrospective Study.

Seasonality patterns are reported for various psychiatric disorders. Concerning adolescents, there is an increased frequency of general emergency department visits for mental health disorders observed between March and May, as well as in October and November. We conducted a retrospective cohort study using the French health insurance medico-administrative database. We extracted psychotropic drug deliveries occurring between 2015 and 2019 for patients aged between 12 and 18 years old. Each drug delivery was classified as occurring during a school period (Sc), the summer holidays (SumH) or other shorter holidays periods (ShH). We compared the number of distinct patients, as well as the proportion of new consumers, according to week status. Anxiolytics and hypnotics were more frequently dispensed during the school periods and short breaks than during the summer holidays. Conversely, antidepressants were more commonly dispensed during the short breaks rather than school periods and summer holidays. The stressful effects induced by schooling appear to be addressed in the first line by anxiolytics and hypnotics, while antidepressants are more frequently introduced during school holidays.

Oral health knowledge, attitudes, and practices of people living with mental illness: a mixed-methods systematic review

People living with mental illness experience poorer oral health outcomes compared to the general population, yet little is known about their oral health knowledge, attitudes, and practices. The aim of this mixed-methods systematic review was to synthesise evidence regarding oral health knowledge, attitudes, and practices of people living with mental illness to inform preventative strategies and interventions. Database searches were conducted in PubMed, MEDLINE, PsycINFO, CINAHL, ProQuest, and Scopus with no limitations placed on the year of study. All studies available in the English language, that explored the oral health knowledge, attitudes, and/or practices of people with a mental illness were included. Articles were excluded if they primarily pertained to intellectual disability, behavioural and psychological symptoms of dementia, drug and alcohol or substance use, or eating disorders. A thematic synthesis was undertaken of 36 studies (26 high-moderate quality), resulting in 3 themes and 9 sub-themes. Study participants ranged from n = 7 to n = 1095 and aged between 15–83 years with most having a diagnosis of schizophrenia, schizoaffective, or bipolar affective disorder. People diagnosed with a mental illness were found to have limited oral health knowledge, particularly regarding the effects of psychotropic medication. Various barriers to oral health care were identified, including high dental costs, the negative impact of mental illness, dental fears, lack of priority, and poor communication with dental and health care providers. Study participants often displayed a reduced frequency of tooth brushing and dental visits. The findings highlight the potential for mental health care providers, oral health and dental professionals, mental health consumers, and carers to work together more closely to improve oral health outcomes for people with mental illness. The systematic review protocol is registered with the International Prospective Register of Systematic Reviews (PROSPERO), (registration ID CRD42022352122).

Patterns and Emerging Trends in Acute Poisoning with Substances of Abuse Used for Recreational Purposes in Adolescents: A Six-Year Multicentre Study.

This six-year multicentre study investigated acute intentional poisoning with substances of abuse in adolescents to identify changes and patterns in substance use. Data from 562 adolescents were collected from three paediatric poison centres in Romania between January 2017 and December 2022. This study analysed the epidemiological and sociodemographic characteristics of the adolescents, including age, gender, place of residence, history of substance abuse, psychiatric history, and history of institutionalised care. The findings revealed that cannabis and new psychoactive substances (NPSs) are the most commonly implicated substances, each with distinct profiles among adolescents. Cannabis was involved in 46.1% of cases, with a significant association with urban residency. NPSs were identified as the second most prevalent substance, accounting for 39.3% of cases. These were more prevalent in rural areas and among patients with psychiatric disorders. Cannabis and NPSs were also the most commonly implicated substances in acute intentional poisoning cases with substances of abuse. These substances have distinct profiles among adolescents, including age, gender, residency area, history of substance abuse, psychiatric history, and institutional care. These findings underscore the necessity of targeted public health interventions and integrated care approaches to address substance use and related mental health issues in adolescents.

Psychological Factors Influencing Healthcare Utilization in Breast Cancer Survivors with Pain.

Pain is a prevalent side-effect seen in breast cancer survivors (BCS). Psychological factors are known role-players in pain mechanisms. Both pain and psychological factors contribute to or interact with healthcare use (HCU). However, the association between psychological factors and HCU has never been investigated in BCS with pain, which is aimed in this study. Belgian BCS with pain (n = 122) were assessed by the Medical Consumption Questionnaire, Injustice Experienced Questionnaire, Pain Catastrophizing Scale, Pain Vigilance and Awareness Questionnaire, Brief Illness Perceptions Questionnaire, and the Depression, Anxiety and Stress Scale. Associations were analyzed using logistic and Poisson regressions. Opioid use was related to more catastrophizing and less psychological distress. Psychotropic drug was related to more psychological distress. Endocrine therapy related to less vigilance and awareness. Psychological distress related to all types of healthcare provider (HCP), with psychological distress negatively related to physiotherapy, psychology, and other primary HCP visits, and positively with visiting a general practitioner and secondary HCP. Catastrophizing related to more visiting behavior in primary HCP, except to a general practitioner. Perceived injustice related to more general practitioner and other primary HCP visits, but to fewer psychology visits. Illness perceptions are only related to visiting other primary HCP. Vigilance and awareness was related to more psychologist and secondary HCP visits. Our findings underscore the complex interplay between HCU and psychological factors in BCS with pain. Psychological distress was overall the most important psychological factor related to HCU, whether catastrophizing and perceived injustice were the most relevant related to HCP visits.

Prevalence of polypharmacy and factors impacting psychotropic prescribing patterns in women of childbearing potential at inpatient mental health services in Qatar.

Women may experience unique mental disorders due to hormone shifts. Rates of schizophrenia and bipolar disorder are similar between genders, but onset and symptoms may differ. Women tend to use more psychotropic drugs due to limited therapeutic options. This study was aimed to estimate the prevalence of psychotropic polypharmacy among females of childbearing potential and factors impacting prescribing patterns. This was a quantitative retrospective chart review for patients admitted to inpatient units at the Mental Health Hospital in Qatar. SPSS® Statistics was used for data analysis. In addition to descriptive statistics applied, linear regression and binary logistic regression models were used to examine the clinical and sociodemographic factors associated with polypharmacy and full therapeutic response upon discharge, respectively. An alpha value of 0.05 was used. Of the 347 patients, 52.7% of the patients received a prescription of at least two psychotropic drugs upon discharge. Around two-thirds (63.1%) were prescribed at least one antipsychotic. Potential predictors of polypharmacy were age (p = 0.027), longer hospital stay (p = 0.003), family history (p < 0.001), absence of suicidal history (p = 0.005), and a diagnosis of a mood disorder (p = 0.009), or a diagnosis of a psychotic disorder (p = 0.015). A full response upon discharge was less likely to occur in patients with a longer stay (OR = 0.940; p = 0.029) and in those with a substance use disorder (OR = 0.166; p = 0.035). There is a notably high prevalence of total polypharmacy upon discharge. Some identified factors are modifiable. Evidence-based prescription practices through hospital guidelines and education should be emphasized to avoid unreasonable polypharmacy.

USO DE SUBSTÂNCIAS PSICOATIVAS E EFEITOS ADVERSOS: DISTÚRBIOS DECORRENTES DO USO DE ÁLCOOL, CAFEÍNA, CANNABIS, COCAÍNA E NICOTINA.

Introduction: Introduction: The frequent use of psychoactive substances causes harm to the health and quality of life of users, due to the activation of the brain’s reward system by such drugs. Objective: Identify the adverse effects caused by the use of the following substances: alcohol, caffeine, cannabis, crack and nicotine. Methodology: This is an integrative review of the literature, with studies published between 2017 and 2023, in Portuguese and English. Results and Discussion: Thirty articles were selected that addressed the effects resulting from the use of the five substances studied, and several damages to the human body were verified with the continuous consumption of these substances. Several adverse reactions were identified, with recurrence of the effects between the different substances. The presence of disorders was found in seven different body systems, and the most affected systems are the nervous, vascular, cardiac, gastrointestinal and respiratory systems, in addition to skin disorders and gestational disorders. Final Considerations: The study made it possible to expand knowledge on the subject, understand the adverse effects resulting from the use of psychoactive substances and how this understanding is of great help to nursing professionals, since they have close contact with patients and can identify symptoms early.

Dangerous Intersection of Alcoholism and Othello Syndrome: A Comprehensive Review of Delusional Jealousy and Treatment Strategies.

The modern pace of life, increased susceptibility to stressors, and easy access to psychoactive substances have contributed to the increase in the number of people addicted to alcohol. Alcoholism has serious and life-threatening consequences, one of which is brain damage causing morbid jealousy, otherwise known as Othello syndrome. The disease, currently classified as a subtype of delusional disorder, manifests itself in groundless and dangerous judgments about a partner's sexual infidelity. People with Othello syndrome constantly believe in their partner's infidelity despite inadequate evidence of it. Patients become aggressive toward their partners as well as themselves, which is why in a fit of anger they can commit murder or suicide. Othello syndrome can occur as a symptom of an underlying mental illness, but it is most often associated with brain damage caused by chronic alcohol use. Antipsychotic drugs and serotonin reuptake inhibitors are used in pharmacotherapy. Targeted treatment using the neuropeptide oxytocin, which modulates the transmitter systems responsible for disease symptoms, is also being considered. The use of oxytocin seems groundbreaking, but it remains at the research stage. The treatment of addictions and primary diseases, as well as long-term cognitive-analytic psychotherapy, also have a huge impact. Othello syndrome is a life-threatening disease with an insidious course and serious consequences. This article aims to review the manifestations of morbid jealousy, including delusional disorder, and the association with alcoholism.

Lifetime Psychotropic Medication Use Among Service Members and Veterans With and Without History of Mild Traumatic Brain Injury: A Pilot Study.

Military Service Members, Veterans, and other patient populations who experience traumatic brain injury (TBI) may have increased risk of early neurodegenerative diseases relative to those without TBI history. Some evidence suggests that exposure to psychotropic medications may play a role in this association. The Long-term Impact of Military-relevant Brain Injury Consortium-Chronic Effects of Neurotrauma Consortium (LIMBIC-CENC) prospective longitudinal study provides an ideal setting to examine the effects of psychotropic medication exposure on long-term neurological health of those with and without mild TBI history. In this study, we sought to develop and pilot test a self-report electronic survey instrument to measure participants' psychotropic medication histories for use across LIMBIC-CENC study sites. We developed a new survey instrument measuring psychotropic medication history and fielded it among Service Members and Veterans enrolled in a single site of the LIMBIC-CENC study to evaluate response rates and patterns, and to compare survey responses to prescription data extracted from participants' Veterans Affair (VA) records. Descriptive statistics estimated survey respondents' lifetime psychotropic medication exposures by their TBI history and other demographic and clinical characteristics of interest. We also compared survey responses to participants' VA outpatient prescription records to estimate sensitivity and negative predictive values (NPVs) for participants' self-reported medication exposures relative to this single prescription data source. Among 310 Veterans enrolled at the study site, 249 completed the survey (response rate = 80%), of whom 248 also had VA health records and were included in the analysis. Most (69%) had a history of mild TBI. Over three-fourths of survey respondents (78%) reported ever having used prescription opioids, 26% reported benzodiazepines, 50% reported muscle relaxants, 42% reported antidepressants, 13% reported non-benzodiazepine sedative-hypnotics, 15% reported stimulants, 7% reported mood stabilizers, and 6% reported antipsychotics. Veterans with, versus without, a history of mild TBI were more likely to self-report psychotropic medication history as well as have confirmed receipt of VA prescriptions for each medication class. Using VA records as a criterion standard, the sensitivity of the survey for detecting VA prescriptions ranged from 19% to 84%, while the NPVs ranged from 64% to 97%. Sensitivity and NPVs were similar for participants with, versus without, mild TBI history. Service Members and Veterans may receive psychotropic medications from multiple sources over their lifetimes. Valid methods to examine and quantify these exposures among those with a history of TBI are important, particularly as we evaluate causes of neurodegenerative disorders in this population over time. The measurement of Veterans' lifetime psychotropic medication exposures using a self-report survey, in combination with health care records, holds promise as a valid approach, but further testing and refinement are needed.

Novel harm reduction measures at music festivals in Australia: Pilot implementation of the Emerging Drugs Network of Australia-Victoria toxicosurveillance methodology.

Harm reduction strategies at music festivals seek to create a safer environment for patrons. The Emerging Drugs Network of Australia-Victoria (EDNAV) project is a state-wide toxicosurveillance network that derives drug intelligence from a sample of patients presenting to hospital with illicit drug-related toxicity. This publication describes the preliminary outcomes of conducting toxicosurveillance for critically unwell festival patrons within on-site medical facilities. Blood samples were collected from patrons who presented with severe illicit drug-related toxicity across three festivals (2022/2023). Blood samples were analysed via liquid chromatography-tandem mass spectrometry for over 700 pharmaceutical and illicit drugs. There were 1603 individual medical encounters across the festivals, 228 of which were illicit drug related. A blood sample was collected for 24 patients, with a median age of 22 years (range 18-39 years). A median of two drugs (range 1-5 drugs) were reported and four drugs (range 0-8 drugs) were analytically confirmed per patient. The most frequently reported exposures were congruent with analytical results, 3,4-methylenedioxymethamphetamine (reported n = 17, detected n = 20), ketamine (reported n = 9, detected n = 13) and cocaine (reported n = 9, detected n = 12). An unreported illicit drug and/or new psychoactive substance (NPS) was detected in 18 patients, including methylamphetamine (n = 10), a cathinone (n = 7), benzodiazepine-type NPS (n = 6), N-ethylamphetamine (n = 1), 3-hydroxyphencyclidine (n = 1) and/or 4-hydroxy-N-methyl-N-isopropyltryptamine (n = 1). EDNAV toxicosurveillance serves as an additional tool within a multi-faceted approach to harm reduction at festivals. Continued data collection will allow for the characterisation of high-risk drug use patterns to provide evidence-based messaging to festival patrons and key stakeholders.

A Baseline Model of PTSD From the ACES Cohort.

Post-traumatic stress disorder (PTSD) is a primary military psychiatric condition with complex etiology including strong genetic and/or environmental influences. Environmental influences and demographics can play a role in supporting underlying genetic traits for clinical utility evaluation as risk modifying factors. We are undertaking an IRB approved study to evaluate polygenic scores of PTSD risk in the adverse childhood experience and serotonin (ACES) transporter cohort. Baseline demographic characteristics and statistical modeling of 291 active duty service members from ACES cohort were used and excluded individuals with traumatic brain injury-induced loss of consciousness, pre-deployment PTSD or anxiety disorder, and pre-deployment prescription of antidepressants or psychoactive medications. Summary of categorical and numerical variables were evaluated using chi-square and t-test, respectively. We model PTSD risk and associated scores using linear and logistic regressions. The ACES subset was 79.1% males, multi-ancestry, and mean age of 38.3 years. Most PTSD individuals received behavioral therapy (89.6%) and/or prescribed antidepressants (67%) had higher scores in ACES, combat exposure scales, PTSD checklist military version, neurobehavioral symptom inventory, Pittsburg sleep quality index, insomnia severity index, and composite autonomic symptom score surveys and were less likely to expect future deployment. A positive correlation between age, total months deployed, ACES, CES, PCL-M, and positive-PTSD diagnosis were consistent but not in older individuals, who were more likely and frequently deployed although increasing risk for combat exposure. Demographic characteristics of the ACES cohort fit a coherent model of risk for PTSD to evaluate polygenic scores. Additional research is merited to understand PTSD effects on these confounding factors.

Extraction of Substance Use Information From Clinical Notes: Generative Pretrained Transformer-Based Investigation.

Understanding the multifaceted nature of health outcomes requires a comprehensive examination of the social, economic, and environmental determinants that shape individual well-being. Among these determinants, behavioral factors play a crucial role, particularly the consumption patterns of psychoactive substances, which have important implications on public health. The Global Burden of Disease Study shows a growing impact in disability-adjusted life years due to substance use. The successful identification of patients' substance use information equips clinical care teams to address substance-related issues more effectively, enabling targeted support and ultimately improving patient outcomes. Traditional natural language processing methods face limitations in accurately parsing diverse clinical language associated with substance use. Large language models offer promise in overcoming these challenges by adapting to diverse language patterns. This study investigates the application of the generative pretrained transformer (GPT) model in specific GPT-3.5 for extracting tobacco, alcohol, and substance use information from patient discharge summaries in zero-shot and few-shot learning settings. This study contributes to the evolving landscape of health care informatics by showcasing the potential of advanced language models in extracting nuanced information critical for enhancing patient care. The main data source for analysis in this paper is Medical Information Mart for Intensive Care III data set. Among all notes in this data set, we focused on discharge summaries. Prompt engineering was undertaken, involving an iterative exploration of diverse prompts. Leveraging carefully curated examples and refined prompts, we investigate the model's proficiency through zero-shot as well as few-shot prompting strategies. Results show GPT's varying effectiveness in identifying mentions of tobacco, alcohol, and substance use across learning scenarios. Zero-shot learning showed high accuracy in identifying substance use, whereas few-shot learning reduced accuracy but improved in identifying substance use status, enhancing recall and F1-score at the expense of lower precision. Excellence of zero-shot learning in precisely extracting text span mentioning substance use demonstrates its effectiveness in situations in which comprehensive recall is important. Conversely, few-shot learning offers advantages when accurately determining the status of substance use is the primary focus, even if it involves a trade-off in precision. The results contribute to enhancement of early detection and intervention strategies, tailor treatment plans with greater precision, and ultimately, contribute to a holistic understanding of patient health profiles. By integrating these artificial intelligence-driven methods into electronic health record systems, clinicians can gain immediate, comprehensive insights into substance use that results in shaping interventions that are not only timely but also more personalized and effective.

Mapping functional traces of opioid memories in the rat brain.

Addiction to psychoactive substances is a maladaptive learned behaviour. Contexts surrounding drug use integrate this aberrant mnemonic process and hold strong relapse-triggering ability. Here, we asked where context and salience might be concurrently represented in the brain during retrieval of drug-context paired associations. For this, we developed a morphine-conditioned place preference protocol that allows contextual stimuli presentation inside a magnetic resonance imaging scanner and investigated differences in activity and connectivity at context recall. We found context-specific responses to stimulus onset in multiple brain regions, namely, limbic, sensory and striatal. Differences in functional interconnectivity were found among amygdala, lateral habenula, and lateral septum. We also investigated alterations to resting-state functional connectivity and found increased centrality of the lateral septum in a proposed limbic network, as well as increased functional connectivity of the lateral habenula and hippocampal 'cornu ammonis' 1 region, after a protocol of associative drug-context. Finally, we found that pre- conditioned place preference resting-state connectivity of the lateral habenula and amygdala was predictive of inter-individual conditioned place preference score differences. Overall, our findings show that drug and saline-paired contexts establish distinct memory traces in overlapping functional brain microcircuits and that intrinsic connectivity of the habenula, septum, and amygdala likely underlies the individual maladaptive contextual learning to opioid exposure. We have identified functional maps of acquisition and retrieval of drug-related memory that may support the relapse-triggering ability of opioid-associated sensory and contextual cues. These findings may clarify the inter-individual sensitivity and vulnerability seen in addiction to opioids found in humans.

Analysis of remissions in patients with combined addiction to psychostimulants and other psychoactive substances and comorbid psychiatric pathology after rehabilitation

Despite the annual increase in the number of patients with psychostimulant addiction and the presence of comorbid psychiatric pathology, the question of finding effective therapies for these disorders remains open. When developing therapeutic remission, specialists often do not take into account the peculiarities of its duration and quality in these patients. The purpose of the study is to assess the duration and quality of therapeutic remissions in patients with addiction to psychostimulants, combined use of other psychoactive substances, and comorbid psychiatric pathology. Materials and methods. 325 patients with psychostimulant addiction, who underwent a course of medical and social rehabilitation in the Moscow Research and Practical Centre for Narcology of the Moscow Healthcare Department, were examined. Methods: clinical-psychopathological, psychometric ("Addiction Severity Index: Treatnet Version"), anamnestic, catamnestic, and statistical. The results of the study. It was found that the longest remissions were noted in patients only with psychostimulant addiction. Patients with combined addiction to psychostimulants and the presence of comorbid psychiatric pathology are characterized by short remissions. Patients only with psychostimulant addiction have the best dynamics of remission quality. Conclusion. The revealed clinical features of patients, together with quantitative and qualitative features of remissions, will help to increase the effectiveness of care for these patients.