Emerging Trends of Self-Harm Using Sodium Nitrite in an Online Suicide Community: Observational Study Using Natural Language Processing Analysis.

Background: There is growing concern around the use of sodium nitrite (SN) as an emerging means of suicide, particularly among younger people. Given the limited information on the topic from traditional public health surveillance sources, we studied posts made to an online suicide discussion forum, "Sanctioned Suicide," which is a primary source of information on the use and procurement of SN. Objective: This study aims to determine the trends in SN purchase and use, as obtained via data mining from subscriber posts on the forum. We also aim to determine the substances and topics commonly co-occurring with SN, as well as the geographical distribution of users and sources of SN. Methods: We collected all publicly available from the site's inception in March 2018 to October 2022. Using data-driven methods, including natural language processing and machine learning, we analyzed the trends in SN mentions over time, including the locations of SN consumers and the sources from which SN is procured. We developed a transformer-based source and location classifier to determine the geographical distribution of the sources of SN. Results: Posts pertaining to SN show a rise in popularity, and there were statistically significant correlations between real-life use of SN and suicidal intent when compared to data from the Centers for Disease Control and Prevention (CDC) Wide-Ranging Online Data for Epidemiologic Research (⍴=0.727; P<.001) and the National Poison Data System (⍴=0.866; P=.001). We observed frequent co-mentions of antiemetics, benzodiazepines, and acid regulators with SN. Our proposed machine learning-based source and location classifier can detect potential sources of SN with an accuracy of 72.92% and showed consumption in the United States and elsewhere. Conclusions: Vital information about SN and other emerging mechanisms of suicide can be obtained from online forums.

Social support among chronically ill adolescent and young adult patients using a hospital-based online health community as part of a palliative care program: A qualitative study.

OBJECTIVES: Chronically ill adolescent and young adult (AYA) patients experience barriers to accessing psychosocial support/palliative care, increasing their risk for negative psychosocial outcomes. Online health communities (OHCs) have been recommended for AYAs as part of palliative care support programs; however, we lack research investigating palliative care programs targeting AYAs' psychosocial support needs that are delivered virtually and able to engage with patients both during and beyond inpatient admissions. Streetlight is a palliative care program designed for chronically ill AYAs. Developed as a complementary component that extends beyond the hospital setting, Streetlight Gaming and Online Team (SGOT) is an OHC aimed at facilitating social support to influence psychosocial outcomes. We investigated the existence and enactment of social support among chronically ill AYAs using SGOT and compared this to existing online social support categories to determine which support types are present within SGOT. METHODS: This was a qualitative phenomenological study. We performed deductive thematic analysis based on existing online social support categories. Nine semi-structured interviews were conducted with SGOT participants. RESULTS: Social companionship/belonging, esteem/emotional, and informational support were most prevalent within SGOT. Thirteen subthemes emerged representing how social support impacted AYAs' psychosocial wellbeing. Notably, coping with/managing illness, sense of community and normalcy, recommendations and advice, and shared interests unrelated to illnesses were subthemes that resonated with AYAs and added value to their experiences. SIGNIFICANCE OF RESULTS: SGOT is an impactful OHC used to meet AYAs' social support needs. What makes SGOT especially unique is its virtual delivery, wherein AYAs can conveniently maintain beneficial relationships with other chronically ill same-aged peers. AYAs need spaces where they can feel normal and access continuous support, both within and beyond inpatient admissions. This study enhances our understanding of online AYA psychosocial support programs. Findings can be used by healthcare professionals to implement similar palliative care and psychosocial support programs.

Barriers to opioid use disorder treatment: A comparison of self-reported information from social media with barriers found in literature.

Introduction: Medications such as buprenorphine and methadone are effective for treating opioid use disorder (OUD), but many patients face barriers related to treatment and access. We analyzed two sources of data-social media and published literature-to categorize and quantify such barriers. Methods: In this mixed methods study, we analyzed social media (Reddit) posts from three OUD-related forums (subreddits): r/suboxone, r/Methadone, and r/naltrexone. We applied natural language processing to identify posts relevant to treatment barriers, categorized them into insurance- and non-insurance-related, and manually subcategorized them into fine-grained topics. For comparison, we used substance use-, OUD- and barrier-related keywords to identify relevant articles from PubMed published between 2006 and 2022. We searched publications for language expressing fear of barriers, and hesitation or disinterest in medication treatment because of barriers, paying particular attention to the affected population groups described. Results: On social media, the top three insurance-related barriers included having no insurance (22.5%), insurance not covering OUD treatment (24.7%), and general difficulties of using insurance for OUD treatment (38.2%); while the top two non-insurance-related barriers included stigma (47.6%), and financial difficulties (26.2%). For published literature, stigma was the most prominently reported barrier, occurring in 78.9% of the publications reviewed, followed by financial and/or logistical issues to receiving medication treatment (73.7%), gender-specific barriers (36.8%), and fear (31.5%). Conclusion: The stigma associated with OUD and/or seeking treatment and insurance/cost are the two most common types of barriers reported in the two sources combined. Harm reduction efforts addressing barriers to recovery may benefit from leveraging multiple data sources.

Evaluating a novel hospital-based online health community to address palliative and psychosocial care factors for chronically ill adolescent and young adult patients.

OBJECTIVES: Chronically ill adolescent and young adult (AYA) patients experience barriers to accessing psychosocial care. AYAs who receive palliative and psychosocial care experience numerous benefits from these services. However, we still lack research investigating age-appropriate programs targeting AYAs' psychosocial needs that are delivered virtually and extend beyond the hospital setting. Streetlight is a palliative care program designed for chronically ill AYAs that offers the Streetlight Gaming League (SGL), an online health community (OHC) combining peer-based support, online gaming, and community events. We evaluated the usefulness, acceptability, and potential effectiveness of SGL through an assessment of chronically ill AYAs' lived experiences. METHODS: We used a qualitative evaluation approach grounded in hermeneutic phenomenology. Questionnaires and interviews were conducted with 9 chronically ill AYAs to elicit in-depth accounts of their lived experiences of using SGL. Descriptive statistical analysis was performed on questionnaire data. Phenomenological data analysis, informed by hermeneutic analysis, was used to analyze interviews. RESULTS: AYAs reported positive experiences with SGL and valued the ability to engage in various content while having few participation expectations. They also described psychosocial benefits, including reprieve from illness, sense of community, and solidarity through mutual understandings and shared experiences. SIGNIFICANCE OF THE RESULTS: Findings highlight the usefulness and acceptability of a virtual palliative psychosocial care program for chronically ill AYAs. Findings also suggest the effectiveness of SGL and support using an OHC to meet the psychosocial needs of AYAs. This study can guide future programming and implementation of online palliative psychosocial care programs in other hospital settings, resulting in similar beneficial and meaningful experiences.

Capturing in-field root system dynamics with RootTracker.

Optimizing root system architecture offers a promising approach to developing stress tolerant cultivars in the face of climate change, as root systems are critical for water and nutrient uptake as well as mechanical stability. However, breeding for optimal root system architecture has been hindered by the difficulty in measuring root growth in the field. Here, we describe the RootTracker, a technology that employs impedance touch sensors to monitor in-field root growth over time. Configured in a cylindrical, window shutter-like fashion around a planted seed, 264 electrodes are individually charged multiple times over the course of an experiment. Signature changes in the measured capacitance and resistance readings indicate when a root has touched or grown close to an electrode. Using the RootTracker, we have measured root system dynamics of commercial maize (Zea mays) hybrids growing in both typical Midwest field conditions and under different irrigation regimes. We observed rapid responses of root growth to water deficits and found evidence for a "priming response" in which an early water deficit causes more and deeper roots to grow at later time periods. Genotypic variation among hybrid maize lines in their root growth in response to drought indicated a potential to breed for root systems adapted for different environments. Thus, the RootTracker is able to capture changes in root growth over time in response to environmental perturbations.

Inhibition of interleukin 6 signalling and renal function: A Mendelian randomization study.

Inhibition of interleukin 6 (IL-6) signalling has been proposed as a potential cardioprotective strategy for patients with chronic kidney disease (CKD), but the direct effects of IL-6 inhibition on renal function are not known. A Mendelian randomization (MR) study was performed to investigate the association of genetically proxied inhibition of IL-6 signalling with estimated glomerular filtration rate (eGFR), CKD and blood urea nitrogen (BUN). Inverse-variance weighted MR was used as the main analysis, with sensitivity analyses performed using simple median, weighted median and MR-Egger methods. There was no evidence for an association of genetically proxied inhibition of IL-6 signalling (scaled per standard deviation unit decrease in C-reactive protein) with log eGFR (0.001, 95% confidence interval -0.004-0.007), BUN (0.009, 95% confidence interval -0.003-0.021) and CKD (odds ratio 0.948, 95% confidence interval 0.822-1.094). These findings do not raise concerns for IL-6 signalling having large adverse effects on renal function.

Specificity of children's arithmetic learning.

Among adults, arithmetic training-transfer studies have documented a high degree of learning specificity. Provided that there is a delay of at least 1day between training and testing, performance gains do not transfer to untrained problems, nor do they transfer to complement operation-inverted problems (e.g., gains for 4+7=__ do not transfer to the complement subtraction problem, 11-4=__, or vice versa). Here we demonstrate the same degree of learning specificity among 6- to 11-year-old children. These results appear to rule out, for the current training paradigm, operation-level procedural learning as well as any variant of complement problem mediation that would predict transfer. Results are consistent with either or both of two types of learning: (a) item-level procedural learning and (b) a shift to memory-based performance as predicted by the elemental elements model. These results suggest a developmental pattern such that specificity of learning among children is similar to that among adults. Educational implications are noted.

Hierarchical encoding makes individuals in a group seem more attractive.

In the research reported here, we found evidence of the cheerleader effect-people seem more attractive in a group than in isolation. We propose that this effect arises via an interplay of three cognitive phenomena: (a) The visual system automatically computes ensemble representations of faces presented in a group, (b) individual members of the group are biased toward this ensemble average, and (c) average faces are attractive. Taken together, these phenomena suggest that individual faces will seem more attractive when presented in a group because they will appear more similar to the average group face, which is more attractive than group members' individual faces. We tested this hypothesis in five experiments in which subjects rated the attractiveness of faces presented either alone or in a group with the same gender. Our results were consistent with the cheerleader effect.

Who's funny: gender stereotypes, humor production, and memory bias.

It has often been asserted, by both men and women, that men are funnier. We explored two possible explanations for such a view, first testing whether men, when instructed to be as funny as possible, write funnier cartoon captions than do women, and second examining whether there is a tendency to falsely remember funny things as having been produced by men. A total of 32 participants, half from each gender, wrote captions for 20 cartoons. Raters then indicated the humor success of these captions. Raters of both genders found the captions written by males funnier, though this preference was significantly stronger among the male raters. In the second experiment, male and female participants were presented with the funniest and least funny captions from the first experiment, along with the caption author's gender. On a memory test, both females and males disproportionately misattributed the humorous captions to males and the nonhumorous captions to females. Men might think men are funnier because they actually find them so, but though women rated the captions written by males slightly higher, our data suggest that they may regard men as funnier more because they falsely attribute funny things to them.

Can pure fruit and vegetable juices protect against cancer and cardiovascular disease too? A review of the evidence.

While it is widely accepted that fruit and vegetables (F&V) lower the risk of cancer, and cardiovascular disease (CVD), the role of pure fruit and vegetable (PFV) juices is often downplayed. This review poses two questions: Are the protective benefits of F&V dependent upon constituents lacking in PFV juices (e.g. fibre)? Do PFV juices impact on disease risk when considered separately from F&V? Studies comparing the effects of fibre and antioxidants were reviewed, yielding the finding that the impact of F&V may relate more strongly to antioxidants, than to fibre. For the second question, high-quality published studies that considered PFV juices were reviewed. The impact of PFV juices on cancer risk was weakly positive, although a lack of human data and contradictory findings hampered conclusions. For CVD, there was convincing evidence from epidemiological and clinical studies that PFV juices reduced risk via a number of probable mechanisms. It was concluded that the view that PFV juices are nutritionally inferior to F&V, in relation to chronic disease risk reduction, is unjustified.