The Osprey, Fall 2018

The student magazine of Cal Poly Humboldt.https://digitalcommons.humboldt.edu/theosprey/1011/thumbnail.jp

Adolescent brain cognitive development (ABCD) study: Overview of substance use assessment methods.

One of the objectives of the Adolescent Brain Cognitive Development (ABCD) Study (https://abcdstudy.org/) is to establish a national longitudinal cohort of 9 and 10 year olds that will be followed for 10 years in order to prospectively study the risk and protective factors influencing substance use and its consequences, examine the impact of substance use on neurocognitive, health and psychosocial outcomes, and to understand the relationship between substance use and psychopathology. This article provides an overview of the ABCD Study Substance Use Workgroup, provides the goals for the workgroup, rationale for the substance use battery, and includes details on the substance use module methods and measurement tools used during baseline, 6-month and 1-year follow-up assessment time-points. Prospective, longitudinal assessment of these substance use domains over a period of ten years in a nationwide sample of youth presents an unprecedented opportunity to further understand the timing and interactive relationships between substance use and neurocognitive, health, and psychopathology outcomes in youth living in the United States

No laughing matter : presence, consumption trends, drug awareness, and perceptions of "hippy crack" (nitrous oxide) among young adults in England

In clinical settings, nitrous oxide gas is a safe anesthetic used during childbirth, in dentistry, and to relieve anxiety in emergencies. Colloquially known as “hippy crack”’ or “laughing gas,” it is increasingly taken recreationally for its euphoric and relaxing effects and hallucinogenic properties. Using a self-reported survey, we gathered quantitative and qualitative information on users and non-users of hippy crack among a young population regarding: consumption patterns, knowledge, risk awareness and intentions toward future abuse. Quantitative responses from a total of 140 participants were analyzed for frequencies and relationships, whereas qualitative data were evaluated via identifying the reoccurring themes. Overall, 77.1% (n = 108) had heard of hippy crack and 27.9% (n = 39) admitted to past-year use. Prior users mostly indicated intended future use, had an average low number of past-year uses but some with > 20 occasions, had a varied number of inhalations per occasion (often 1–10) with an effect lasting up to 5 min, and a majority preferred social rather than lone use. For non-users, 79.2% said they would take hippy crack with the vast majority (94%) preferring a social setting. The results show a concerning gap between available evidence and awareness of side effects. Despite serious reported side effects, including psychosis and myeloneuropathy—especially on the young developing brain—only a minority (29.3%) was aware of any side effects. In contrast, in a hypothetical scenario depicting a first social encounter with hippy crack, the qualitative responses were in contrast to qualitative outcomes revealing that participants would try (n = 30)/not try (n = 25) it, would feel under pressure to try it (n = 6) with only 11 opting to exit the situation. In summary, this first report of trends and perceptions of the use of hippy crack among young adults in the England highlights a lack of concern with side effects, coupled to a willingness to partake. Because typical users are young with risks to the still developing brain, education about the nitrous oxide abuse is warranted to prevent impaired brain development. Further studies to investigate the possible effects of nitrous oxide on the developing brain in young adults would advance meaningful prevention

Subacute combined degeneration of the cord secondary to nitrous oxide misuse:No laughing matter

Nitrous oxide (N(2)O) has several traditional uses as a surgical and dental anaesthetic, as well as in aerosol spray propellants. It is the combination of analgesic and euphoric qualities coupled with accessibility as an over-the-counter household item that lends N(2)O to recreational use. Despite increasing evidence that prolonged use of N(2)O both medically and as a drug of abuse can cause disabling neurological side-effects, it remains widely used. We present the case of an 18-year-old male who was diagnosed with subacute combined degeneration of the cord (SCDC) secondary to acute, heavy recreational use of N(2)O. The patient presented with progressive paraesthesia affecting his hands and feet associated with distal weakness. MRI of the cervical spine revealed symmetric bilateral high T2 signal within the dorsal columns extending from the level of C2 to T2 with the inverted ‘V’ sign on axial T(2)-weighted slices indicative of SCDC. Although vitamin B12 levels were within normal range, marked elevation of methylmalonic acid and homocysteine support the diagnosis of B12 inactivation and functional B12 deficiency, which fully resolved with treatment

The Lumberjack, February 28, 2024

The student newspaper of Humboldt State University.https://digitalcommons.humboldt.edu/studentnewspaper/3234/thumbnail.jp

Being Safe, Being Me: Results of the Canadian Trans Youth Health Survey

Cette étude a été financée par la subvention no MOP119472 des Instituts de recherche en santé du Canada, Institut de la santé des femmes et des hommes.Disponible en français dans EDUQ.info sous le titre "Être en sécurité, être soi-même : résultats de l’enquête canadienne sur la santé des jeunes trans".A national study by SARAVYC showed that while Canada’s transgender youth face significant physical and mental health issues, strong family, school and community connections help many of them navigate these challenges. The study, funded by the Canadian Institute for Health Research and completed in collaboration with universities and health researchers across Canada, was the first and largest of its kind in Canada, with 923 individuals participating between the ages 14-25. They answered a range of questions in English or French on their home and school life, physical and mental health, access to health care, and gender identity. The report called for measures to improve the well-being of trans youth, including: improved support for families, so they can better understand and support their transgender children; developing safer, more inclusive schools; retooling health care to provide gender-affirming services for trans youth; and reducing health care disparities between provinces

Nitrous oxide misuse and vitamin B12 deficiency

A 36-year-old man presented to hospital with a 5-week history of ascending limb paraesthesiae and balance difficulties. He had no medical or travel history of note, but admitted habitual nitrous oxide (N2O) inhalation. Neurological examination revealed a sensory ataxia with pseudoathetosis in the upper limbs and reduced vibration sensation to the hips bilaterally. Significant investigation results included a low serum vitamin B12 concentration, mild macrocytosis and raised serum homocysteine concentration. T2 MRI of the spinal cord demonstrated increased signal extending from C1 to T11 in keeping with a longitudinal myelitis. The patient was diagnosed with a myeloneuropathy secondary to vitamin B12 deficiency, resulting from heavy N2O inhalation. He was treated with intramuscular vitamin B12 injections and received regular physiotherapy. At discharge, he was able to mobilise short distances with the aid of a zimmer frame, and was independently mobile 8 weeks later

Does nitrous oxide addiction exist?:An evaluation of the evidence for the presence and prevalence of substance use disorder symptoms in recreational nitrous oxide users

BACKGROUND: Prevalence of nitrous oxide (N 2 O) use appears to be increasing in numerous countries worldwide, and excessive use has been associated with physical and mental problems. Because there currently is no consensus whether N 2 O has addictive potential, we aimed to evaluate the evidence for the presence and prevalence of DSM-5 substance use disorder (SUD) symptoms in N 2 O users. ANALYSIS: A literature search was conducted to assess the evidence for the presence of any of the 11 DSM-5 SUD symptoms in N 2 O users and the prevalence experiencing those symptoms. A substantial part of the studied N 2 O users use more than intended (i.e. 46% to 98%) and spend a substantial amount of time using N 2 O. At least some of the studied N 2 O users experience interpersonal problems (i.e. 13% to 80%) and use N 2 O in risky situations, such as driving under the influence. Evidence for the other criteria is either insufficient or inconclusive. CONCLUSIONS: The literature base for the presence and prevalence of DSM-5 substance use disorder (SUD) symptoms in nitrous oxide (N 2 O) users is limited and largely consists of qualitative studies and case studies, but it provides consistent evidence for the presence of at least four SUD criteria in heavy N 2 O users. N 2 O could well be addictive and should be treated as a potentially addictive substance until systematic assessments can provide evidence-based guidance to users, healthcare professionals and legislators. </p