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HIV infection affects an estimated 38 million people. Approximately 50% of HIV patients exhibit neurocognitive dysfunction termed HIV-Associated Neurocognitive Disorder (HAND). HAND is a consequence of chronic low-level neuroinflammation due to HIV entry into the brain. Initially, monocytes become activated in circulation and traffic to the brain. Monocytes, when activated, become susceptible to infection by HIV and can then carry the virus across the blood brain barrier. Once in the brain, activated monocytes secrete chemokines, which recruit virus-specific CD8+ T cells into the brain to further promote neuroinflammation. HAND is closely linked to systemic inflammation driven, in part, by HIV but is also due to persistent translocation of microorganisms across the GI tract. Persistent anti-viral responses in the GI tract compromise microbial barrier integrity. Indeed, HIV patients can exhibit remarkably high levels of activated (CD16+) monocytes in circulation. Recent studies, including our own, show that HIV patients using medical marijuana exhibit lower levels of circulating CD16+ monocytes than non-cannabis using HIV patients. Cannabis is a known immune modulator, including anti-inflammatory properties, mediated, in part, by ∆9-tetrahydrocannabinol (THC), as well as less characterized minor cannabinoids, such as cannabidiol (CBD), terpenes and presumably other cannabis constituents. The immune modulating activity of THC is largely mediated through cannabinoid receptors (CB) 1 and 2, with CB1 also responsible for the psychotropic properties of cannabis. Here we discuss the anti-inflammatory properties of cannabinoids in the context of HIV and propose CB2 as a putative therapeutic target for the treatment of neuroinflammation. Graphical Abstract HIV-associated neurocognitive disorder is a systemic inflammatory disease leading to activation of plasmacytoid dendritic cells, monocytes and T cells. Monocyte and CD8 T cell migration across the BBB and interaction with astrocytes promotes neurotoxic inflammatory mediators release. CB2 ligands are proposed as therapeutics capable of suppressing systemic and localized inflammation.

CD8+ T cells can contribute to neuroinflammation by secretion of inflammatory cytokines like interferon γ (IFNγ) and tumor necrosis factor α (TNFα). Astrocytes, a glial cell in the brain, can be stimulated by IFNγ and TNFα to secrete the inflammatory cytokines, monocyte chemotactic protein 1 (MCP-1), interleukin 6 (IL-6), and interferon-γ inducible protein 10 (IP-10). Δ9-Tetrahydrocannabinol (THC), the primary psychoactive cannabinoid in Cannabis sativa, possesses potent anti-inflammatory activity. The objective of this investigation was to assess the effects of THC treatment on CD8+ T cell-mediated activation of astrocytes. CD3/CD28/IFNα- stimulated CD8+ T cells were treated with vehicle (0.03% EtOH) or THC and cocultured with U251 astrocytes. IP-10+, MCP-1+, and IL-6+ astrocytes were quantified by flow cytometry. LegendPlex™ was used to measure cytokine secretion by CD8+ T cells and flow cytometry was employed to quantify IFNγ, TNFα, and lysosomal-associated membrane protein 1 (LAMP-1) expression. Recombinant TNFα and IFNγ were used to stimulate MCP-1, IP-10, IL-6 responses in U251 astrocytes, which were measured by flow cytometry. Treatment with THC reduced CD8+ T cell-mediated induction of IP-10 and IL-6 responses in U251 astrocytes but had no effect on MCP-1. THC treatment differentially affected T cell effector functions such that IFNγ and degranulation responses were sensitive to THC-mediated ablation while TNFα was not. Lastly, THC treatment reduced the IFNγ-induced IP-10 response but had no effect on TNFα-induced MCP-1 response in U251 astrocytes. The results suggest that cannabinoid treatment can selectively reduce certain CD8+ T cell responses that contribute to stimulation of astrocytes. Graphical Abstract Treatment with THC can abate CD8+ T cell-dependent neuroinflammatory processes by inhibiting CD8+ cell differentiation into effector cells, suppressing CD8+ effector cell function, and reducing activation of astrocytes by CD8+ T cell-derived inflammatory cytokines.

Background: Blindness from corneal opacity accounts for 12% of cases of blindness worldwide. There is a severe shortage of corneas for donation worldwide for transplantation and research purposes. One group of individuals who could potentially be donors are those who die within the inpatient palliative care unit. The aims of the study were to 1. determine the frequency of corneal donation discussion; 2. determine whether inpatient palliative care unit patients and clinicians were aware of the potential for corneal donation discussions and 3. explore the attitudes and beliefs of inpatient palliative care unit patients and clinicians about corneal donation. Methods: An exploratory qualitative study was designed where inpatient palliative care unit patients and clinicians were invited to a semi-structured interview. A total of 46 face to face interviews were undertaken involving inpatient palliative care unit patients (20) and clinicians (26) in three major inpatient palliative care units in South Australia. Results: Very few patient participants were asked about corneal donations during their time in palliative care. Most inpatient palliative care unit clinicians did not bring up the topic as they felt other areas of care took precedence. Inpatient palliative care unit patients thought if inpatient palliative care unit clinicians did not raise the topic, then it was not important. Conclusions: Findings suggest that patients are receptive to discussing corneal donations, but few discussions are occurring. There were some differences between patient and clinician views, such as preference about who raises the possibility of donation and when the discussion might occur.

Restrictions, social isolation, and uncertainty related to the global COVID-19 pandemic have disrupted the ways that parents and children maintain family routines, health, and wellbeing. Companion animals (pets) can be a critical source of comfort during traumatic experiences, although changes to family routines, such as those caused by COVID-19, can also bring about challenges like managing undesirable pet behaviours or pet-human interactions. We aimed to examine the relationship between pet attachment and mental health for both parents and their children during the COVID-19 pandemic in Australia. A total of 1,034 parents living with a child under 18 years and a cat or dog completed an online cross-sectional survey between July and October 2020. Path analysis using multivariate linear regression was conducted to examine associations between objective COVID-19 impacts, subjective worry about COVID-19, human-pet attachment, and mental health. After adjusting for core demographic factors, stronger pet-child attachment was associated with greater child anxiety (parent-reported, p < .001). Parent-pet attachment was not associated with self-reported psychological distress (p = .42), however, parents who reported a strong emotional closeness with their pet reported greater psychological distress (p = .002). Findings highlight the role of pets during times of change and uncertainty. It is possible that families are turning to animals as a source of comfort, during a time when traditional social supports are less accessible. Alternatively, strong pet attachment is likely to reflect high levels of empathy, which might increase vulnerability to psychological distress. Longitudinal evidence is required to delineate the mechanisms underpinning pet attachment and mental health.

We describe an improvement on the magnetic scalar potential approach to the design of an electromagnet, which incorporates the need to wind the coil as a helix. Any magnetic field that can be described by a magnetic scalar potential is produced with high fidelity within a Target region; all fields are confined within a larger Return. The helical winding only affects the field in the Return., Comment: 4 pages, 2 figures

Study objective To determine the sensitivity of a highly sensitive bedside leukocyte esterase reagent strip (RS) for detection of spontaneous bacterial peritonitis (SBP) in emergency department (ED) ascites patients undergoing paracentesis. Methods We conducted a prospective, observational cohort study of ED ascites patients undergoing paracentesis at two academic facilities. Two practitioners, blinded to each other's results, did a bedside RS analysis of the peritoneal fluid in each patient and documented the RS reading at 3-min according to manufacturer-specified colorimetric strip reading as either “negative”, “trace”, “small”, or “large”. The primary outcome measure was sensitivity of the RS strip for SBP (absolute neutrophil count ≥ 250 cells/mm3) at the “trace” threshold (positive equals trace or greater). Results There were 330 cases enrolled, with 635 fluid analyses performed. Of these, 40 fluid samples had SBP (6%). Bedside RS had a sensitivity, specificity, positive predictive value, and negative predictive value of 95% (95% CI 82%–99%), 48% (95% CI 44%–52%), 11% (95% CI 10%–11%), and 99% (95% CI 97%–99%) respectively at the “trace” threshold for the detection of SBP. Conclusion Bedside use of the RS in ED ascites patients demonstrated high sensitivity for SBP. Given the wide confidence intervals, we cannot currently recommend it as a stand-alone test. We recommend further study with a larger number of SBP patients, potentially combining a negative RS result with low clinical suspicion to effectively rule out SBP without formal laboratory analysis.

Dome formation can occur in cultured tubular epithelial cells originating from various tissues, including the mammary gland and the kidney. The isolation and characterization of normal kidney epithelial stem cells that give rise to dome-forming tubular cells have never been reported. We attempted to isolate and characterize canine kidney epithelial stem cells using a simple cell culture method that we have previously used to isolate other adult human stem cells. Dome-forming kidney epithelial cells were derived from dissociated adult canine kidney tissues that were cultured in a modified keratinocyte serum-free medium supplemented with N-acetyl-l-cysteine, l-ascorbic acid 2-phosphate, nicotinamide, and fetal bovine serum. These cells exhibited high self-renewal capacity in long-term culture (growth for >13 months and 30 cumulative population doublings) and exhibited characteristics of stem cells, including (1) deficiency in gap junctional intercellular communication, (2) anchorage-independent growth, (3) expression of stem cell markers octamer-binding transcription factor 4 and SRY (sex determining region Y)-box 2, (4) expression of cell surface markers CD24 and CD133, and (5) multipotent differentiation into osteoblasts, adipocytes, chondrocytes, and dome-forming tubular cells. Most of these characteristics are shared by the well-known canine renal tubule-derived immortalized Madin-Darby Canine Kidney cell line. Furthermore, the putative canine kidney stem cells developed in this study formed budding tubule-like organoids on Matrigel and required high cell density (>4,000 cells/cm2) for sustained growth and confluency for dome formation. The signal transducer and activator of transcription-3 (STAT3) phosphorylation inhibitor, AG490, inhibited colony-forming efficiency and dome formation, whereas lipopolysaccharide, an activator of STAT3, increased colony-forming efficiency in a dose-dependent manner. These results are consistent with the hypothesis that high cell density induces STAT3 expression, which promotes both stem cell self-renewal and differentiation into tubular cells. Our novel cell culture method should be useful for the future development of normal human kidney stem cells for clinical applications and for studying mechanisms of nephrotoxicity.

Purpose To provide evidence-based recommendations on the management of malignant bowel obstruction (MBO) for patients with advanced cancer. Methods The Multinational Association for Supportive Care in Cancer (MASCC) MBO study group conducted a systematic review of databases (inception to March 2021) to identify studies about patients with advanced cancer and MBO that reported on the following outcomes: symptom management, bowel obstruction resolution, prognosis, overall survival, and quality of life. The review was restricted to studies published in English, but no restrictions were placed on publication year, country, and study type. As per the MASCC Guidelines Policy, the findings were synthesized to determine the levels of evidence to support each MBO intervention and, ultimately, the graded recommendations and suggestions. Results The systematic review identified 17,656 published studies and 397 selected for the guidelines. The MASCC study group developed a total of 25 evidence-based suggestions and recommendations about the management of MBO-related nausea and vomiting, bowel movements, pain, inflammation, bowel decompression, and nutrition. Expert consensus-based guidance about advanced care planning and psychosocial support is also provided. Conclusion This MASCC Guideline provides comprehensive, evidence-based recommendations about MBO management for patients with advanced cancer.

Tides and Earth-Moon system evolution are coupled over geological time. Tidal energy dissipation on Earth slows Earth's rotation rate, increases obliquity, lunar orbit semi-major axis and eccentricity, and decreases lunar inclination. Tidal and core-mantle boundary dissipation within the Moon decrease inclination, eccentricity and semi-major axis. Here we integrate the Earth-Moon system backwards for 4.5Ga with orbital dynamics and explicit ocean tide models that are "high-level" (i.e., not idealized). To account for uncertain plate tectonic histories, we employ Monte Carlo simulations, with tidal energy dissipation rates (normalized relative to astronomical forcing parameters) randomly selected from ocean tide simulations with modern ocean basin geometry and with 55, 116, and 252Ma reconstructed basin paleogeometries. The normalized dissipation rates depend upon basin geometry and Earth's rotation rate. Faster Earth rotation generally yields lower normalized dissipation rates. The Monte Carlo results provide a spread of possible early values for the Earth-Moon system parameters. Of consequence for ocean circulation and climate, absolute (un-normalized) ocean tidal energy dissipation rates on the early Earth may have exceeded today's rate due to a closer Moon. Prior to ∼3Ga , evolution of inclination and eccentricity is dominated by tidal and core-mantle boundary dissipation within the Moon, which yield high lunar orbit inclinations in the early Earth-Moon system. A drawback for our results is that the semi-major axis does not collapse to near-zero values at 4.5Ga, as indicated by most lunar formation models. Additional processes, missing from our current efforts, are discussed as topics for future investigation.

BACKGROUND: Management of juxta-renal abdominal aortic aneurysms (JRAAA) remains challenging. Both open surgical and endovascular options are feasible, however, there is lack of level 1 evidence to support one modality over the other. Operative interventions frequently necessitate either open repair with a suprarenal clamp positioning (ORSRC) or complex endovascular repair (EVAR) with fenestrated (fEVAR) or parallel stent grafts (chEVAR). AIM: The aim of this study was to compare the renal function deterioration and mortality between ORSRC and fEVAR in patients who were operated on for unruptured JRAAA at a tertiary centre. DESIGN: This was a retrospective observational study of patients. SETTING: Tertiary vascular unit in the United Kingdom. POPULATION: Patients with unruptured juxta-renal AAA. METHODS: A retrospective review of prospectively collected data was performed on patients who underwent repair for unruptured JRAAA between March 2008 and October 2019. Analysis of short and mid-term outcomes after ORSRC (occlusion of the aorta above at least one of the main renal arteries) and fEVAR was conducted. Patients who underwent open repair of JRAAA with an infrarenal clamp were excluded. Procedural data as well as data regarding complications was noted. Acute kidney injury (AKI) and chronic kidney disease were defined using the KDIGO criteria (Kidney Disease: Improving Global Outcomes). Renal impairment data up to 1 year and mortality up to 5 years was recorded. RESULTS: During the study period, 162 patients who underwent JRAAA repair met the inclusion criteria (60.5% of them having ORSRC). Approximately, 85.8% of the population were males (80.6% in the open group compared to 93.7% in the endovascular group; p=0.019). The mean age for patients in the open group was 74.0 (SD=±5.5) years compared to 76.1 (SD=±7.2) years in the fEVAR group (p=0.035). More patients in the ORSRC group were symptomatic (18.4% versus 6.3% in the fEVAR group; p=0.028) and they also had larger aneurysms compared to the fEVAR group (66.9 (±12.7) mm versus 62.6 (±8.6) mm, respectively; p=0.021). In the ORSRC group, all patients required suprarenal clamping, with clamping above only one of the main renal arteries carried out in 43 patients (44.3%) of cases. At baseline, 37.0% and 44.5% of patients had CKD stage 3 or worse in ORSRC and fEVAR groups, respectively (p=0.759). Approximately 47.6% of patients having ORSRC had evidence of acute renal impairment on post-operative day 3 compared to 12.7% of those in the endovascular group (p

Background Advance care planning involves the discussion and documentation of an individual’s values and preferences to guide their future healthcare should they lose capacity to make or communicate treatment decisions. Advance care planning can involve the individual’s completion of an Advance Care Directive (ACD), a legislated and common-law instrument which may include appointment of a substitute decision-maker and binding refusals of treatment. In South Australia, ACDs intersect in the acute-care context with the Resuscitation Plan 7-Step Pathway (7-SP), an integrated care plan written for and by clinicians, designed to organise and improve patients’ end-of-life care through the use of structured documentation. Here, we examine the perspectives of healthcare professionals (HCPs) within a hospital setting on the practical integration of ACDs and the 7-SP, exploring the perceived role, function, and value of each as they intersect to guide end-of-life care in an Australian hospital setting. Methods Qualitative data were collected via eight focus groups with a total of 74 HCPs (acute care, and oncology specialists; medical intern; general and emergency nurses; social workers) across two hospitals. Audio recordings were transcribed and thematically analysed. Results HCPs viewed ACDs as a potentially valuable means of promoting patient autonomy, but as rarely completed and poorly integrated into hospital systems. Conversely, the process and documentation of the 7-SP was perceived as providing clarity about clinicians’ responsibilities, and as a well-understood, integrated resource. Participants sometimes exhibited uncertainty around which document takes precedence if both were present. Sometimes, the routinisation of the 7-SP meant it was understood as the ‘only way’ to determine patient wishes and provide optimal end-of-life care. When this occurs, the perceived authority of ACDs, or of patients’ choice not to participate in end-of-life discussions, may be undermined. Conclusions The intersection of ACDs and the 7-SP appears problematic within acute care. Clinicians’ uncertainty as to whether an ACD or 7-SP takes precedence, and when it should do so, suggests a need for further clarity and training on the roles of these documents in guiding clinical practice, the legislative context within which specific documentation is embedded, and the dynamics associated with collaborative decision-making in end-of-life care.

In palliative care (PC), the term ‘end of life’ (EoL) is commonly used but inconsistently defined.1 This European Society for Medical Oncology (ESMO) Clinical Practice Guideline (CPG) refers to EoL as care for people with advanced disease once they have reached a point of rapid physical decline, typically the last few weeks or months before an inevitable death as a natural result of a disease. This guideline will only consider the last weeks and days of life for the adult patient with advanced cancer. At EoL, the goal of care is focused towards comfort, offering a tailored and individualised management of quality of life (QoL) and approaching death of the patient. Thus, early integration of supportive care and PC in oncology is essential.2 Comfort care is holistic and person-centred, focusing on the interrelationship between physical, psychosocial and spiritual issues (Figure 1). This warrants the cessation of cancer-modifying treatments and disproportionate interventions, focusing on symptom relief and ‘whole person’ or ‘total care’. It is well documented that PC teams improve symptom control, satisfaction and psychological support for patients and families in hospitals, hospices and community settings, particularly at EoL.3 In the absence of multiprofessional PC teams, and to enhance better collaboration, oncologists need skills to intervene beyond oncological therapies. Communication with the patient and their family becomes a priority to ascertain the therapeutic choices available. Furthermore, the care setting at EoL needs careful evaluation so that monitoring of overall well-being enables the best QoL and a dignified death. EoL provides specific challenges in clinical management of oncology patients, which can be addressed through a multiprofessional and collaborative approach. Oncologists have a responsibility to ensure the smooth transition of the patient and family from living to dying and to coordinate the necessary resources for effective and timely intervention. Open in a separate window Figure 1 Total care of the adult cancer patient at the end of life. Turquoise: combination of treatments or other systemic treatments; white: other aspects of management. MDT, multidisciplinary team.

Examining and addressing unmet care needs is integral to improving the provision and quality of cancer services. This review explored the prevalence of unmet supportive care needs, and factors associated with unmet need, in adults with advanced cancers (solid and hematological malignancies) and their caregivers. Electronic databases (PubMed, CINAHL, EMBASE) were searched, producing 85 papers representing 81 included studies. People with advanced cancer reported the highest unmet needs in financial, health system and information, psychological, and physical and daily living domains, whereas caregivers reported the highest unmet needs in psychological, and patient care and support domains. Distress, depression, and anxiety were associated with higher unmet needs across all unmet need domains for people with advanced cancer and their caregivers. Substantial heterogeneity in study populations and methods was observed. Findings from this review can inform targeted strategies and interventions to address these unmet needs in people with advanced cancer.

Objective In youth, a preoccupation with weight and the desire to be thinner, or drive for thinness, might persist into adulthood and predict reward-based compulsive eating and greater weight status. Methods A total of 623 women were enrolled from a prospective cohort study starting at 10 years old and assessed up to 20 years later. Drive for thinness was measured five times during adolescence. In adulthood (mean age = 39.5), drive for thinness, reward-based eating drive, and BMI were measured. Results Structural equation modeling found cumulative adolescent drive for thinness predicted higher scores for both adult drive for thinness and reward-based eating drive. Youth drive for thinness was not directly associated with adult BMI but rather indirectly through adult drive for thinness. Reward-based eating drive was not associated with adult BMI. Conclusions Drive for thinness during the critical developmental years may exert long-term effects on adulthood eating behaviors tied to greater weight gain, potentially reflecting an important early target of intervention.

Hemp (Cannabis sativa L.) has recently become an important crop due to the growing market demands for products containing cannabinoids. Unintended cross-pollination of C. sativa crops is one of the most important threats to cannabinoid production and has been shown to reduce cannabinoid yield. Ploidy manipulation has been used in other crops to improve agronomic traits and reduce fertility, however, little is known about the performance of C. sativa polyploids. In this study, colchicine was applied to two proprietary, inbred diploid C. sativa inbred lines, ‘TS1-3’ and ‘P163’, to produce the tetraploids ‘TS1-3 (4x)’ and ‘P163 (4x)’. The diploid, triploid, and tetraploid F1 hybrids from ‘TS1-3’ × ‘P163’, ‘TS1-3 (4x)’ × ‘P163’, and ‘TS1-3 (4x)’ × ‘P163 (4x)’ were produced to test their fertilities, crossing compatibilities, and yields. The results indicated a reduction in fertility in the triploids and the tetraploids, relative to their diploid counterparts. When triploids were used as females, seed yields were less than 2% compared to when diploids were used as females, thus, triploids were determined to be female infertile. The triploids resulting from the crosses made herein displayed increases in biomass and inflorescence weight compared to the diploids created from the same parents in a field setting. Statistical increases in cannabinoid concentrations were not observed. Lastly, asymmetric crossing compatibility was observed between the diploids and the tetraploids of the genotypes tested. The results demonstrate the potential benefits of triploid C. sativa cultivars in commercial agriculture.

Cannabis is widely used in the United States, with an estimated prevalence of 9.5%. Certain cannabinoids in Cannabis sativa, Δ9-tetrahydrocannabinol (THC) in particular, possess immune-modulating and anti-inflammatory activity. Depending on the context, the anti-inflammatory activity of cannabinoids may be beneficial (e.g., in treating inflammatory diseases) or detrimental to normal immune defense against pathogens. The potential beneficial effect of cannabinoids on chronic neuroinflammation has gained recent attention. Monocyte migration to the brain has been implicated as a key event in chronic neuroinflammation and in the etiology of central nervous system diseases including viral infection (e.g., human immunodeficiency virus-associated neurocognitive disorder). In the brain, monocytes can contribute to neuroinflammation through interactions with astrocytes, including inducing astrocyte secretion of cytokines and chemokines. In a human coculture system, monocyte-derived interleukin (IL)-1β due to Toll-like receptor 7 (TLR7) activation has been identified to promote astrocyte production of monocyte chemoattractant protein (MCP)-1 and IL-6. THC treatment of the TLR7-stimulated coculture suppressed monocyte secretion of IL-1β, resulting in decreased astrocyte production of MCP-1 and IL-6. Furthermore, THC displayed direct inhibition of monocytes, as TLR7-stimulated monocyte monocultures treated with THC also showed suppressed IL-1β production. The cannabinoid receptor 2 (CB2) agonist, JWH-015, impaired monocyte IL-1β production similar to that of THC, suggesting that THC acts, in part, through CB2. THC also suppressed key elements of the IL-1β production pathway, including IL1B mRNA levels and caspase-1 activity. Collectively, this study demonstrates that the anti-inflammatory properties of THC suppress TLR7-induced monocyte secretion of IL-1β through CB2, which results in decreased astrocyte secretion of MCP-1 and IL-6. SIGNIFICANCE STATEMENT: Because cannabis use is highly prevalent in the United States and has putative anti-inflammatory properties, it is important to investigate the effect of cannabinoids on immune cell function. Furthermore, cannabinoids have garnered particular interest due to their potential beneficial effects on attenuating viral-induced chronic neuroinflammation. This study utilized a primary human coculture system to demonstrate that the major psychotropic cannabinoid in cannabis, Δ9-tetrahydrocannabinol, and a cannabinoid receptor-2 selective agonist suppress specific monocyte-mediated astrocyte inflammatory responses.

Emergency medicine physicians must receive training in chest tube placement. This life-saving skill must be completed quickly and competently to prevent morbidity and mortality. Training on live patients is no longer an appropriate or acceptable practice. Current training devices have been noted to be costly, may be difficult to store, or may require time-consuming cleanup or setup.Fifteen Chest tube High-feedback Educational Simulation Trainers were created. Frames were made from wood and PVC, and soft tissue layers were designed using silicone and polyurethane foam. Nine training sites volunteered to test the model and provided feedback on the acceptability of the task trainer for skill training.Survey findings demonstrated that the model was realistic for teaching, portable, and was easy to use and maintain. In our model, the outer skin was noted to tear easily, thus limiting its use for suture training. Overall programs reported that they would use this model if it was available for the same or lower cost than current models.An inexpensive task trainer was created that was easy to store, quick to set up, durable, easy to clean, and rated as effective at training the skill of chest tube insertion.

BACKGROUND Health professionals' bereavement practices, including funeral attendance, have attracted relatively little attention from researchers. There may be a number of motivations and perceived benefits for health professionals to attend patient funerals. There are no published data comparing different groups of health professionals' perceptions of and practices in attending the funerals of their patients. OBJECTIVE To understand the attitudes and practices of health professionals toward attendance at patient funerals. DESIGN Cross-sectional nationwide online survey of attitudes and practices toward attendance at patient funerals based upon data from interviews with health professionals. PARTICIPANTS Australian health practitioners from medicine, nursing, psychology, social work, and other allied health professions (n = 1098). RESULTS Attendance at patient funerals was predicted by age, telling colleagues about own funeral attendance practices, having discussions with colleagues about funeral attendance, having long relationships with patients, and having a majority of patients at the end of life. Nonattendance was predicted by believing that if they cannot attend all funerals, they prefer not to attend any, feeling that colleagues disapprove of funeral attendance, believing that attending funerals is crossing the line between the personal and the professional, and being a psychologist. CONCLUSIONS Our findings emphasize the need for more open discussions and reflection among individuals and groups of health practitioners regarding attendance at funerals. Understanding the motivations of physicians, nurses, social workers, and other allied health practitioners to attend or not attend patient funerals is an important first step in working toward policies, protocols, and guidelines to support best practice.

Plasmacytoid dendritic cells (pDC) compose 0.2–0.5% of circulating leukocytes but play a significant role in mounting host immune responses. Elevated and chronic activation of pDC are implicated in autoimmune disease like systemic lupus erythematosus and rheumatoid arthritis. Δ(9)-tetrahydrocannabinol (THC) is a well characterized cannabinoid with potent anti-inflammatory activity, but acceptance of THC as a treatment for autoimmune disorders has been hindered due to psychotropic activity. The psychotropic effects of THC are mediated through cannabinoid receptor 1 (CB1) expressed in the central nervous system while the immunomodulatory effects of THC result from THC binding to CB1 and CB2 on immune cells. Synthetic CB2-selective agonists have been developed to explore immune modulation by cannabinoids in the absence of psychotropic effects. The goal of these studies was to determine if the CB2-selective agonists, JWH-015 and JWH-133, have comparable efficacy to THC in modulating IFNα and TNFα responses by primary human pDC. Treatment with JWH-133 and JWH-015 inhibited CpG-induced IFNα and TNFα responses by pDC. Further, the phosphorylation of IRF7, TBK1, NFκB, and IKKγ, key events in pDC activation, were suppressed by THC, JWH-133, and JWH-015. Likewise, the phosphorylation of AKT at the S473 and T308 residues were differentially modulated by treatment with THC and both JWH compounds. Collectively, these results demonstrate the potential for CB2 targeted therapeutics for treatment of inflammatory conditions involving aberrant pDC activity.