Homelessness, Discrimination, and Violent Victimization in Los Angeles County.

INTRODUCTION: People experiencing homelessness (PEH) are highly vulnerable to discrimination and violence, which impact physical and mental health. The study examines past-month discrimination and violence against PEH in Los Angeles County (LAC). METHODS: 332 PEH in LAC were surveyed about their past-month experiences with discrimination, physical violence, and sexual violence from April-July 2023. Analyses were conducted in 2023. RESULTS: 31.8% of respondents reported experiencing discrimination daily and 53.9% reported it weekly, whereas rates of lifetime discrimination in studies of general populations of minoritized groups range between 13-60%. Nearly half of respondents who reported experiencing discrimination (49.6%) believed that their housing situation was the reason they were targeted. Victimization was also common, with 16.0% of participants experiencing physical violence and 7.5% experiencing sexual violence in the past 30 days. These rates of past-month victimization are high when compared to past-year physical violence (3.0%) and sexual violence (0.24%) among general populations in major U.S. cities. In multivariate regression analyses, discrimination was associated with being unsheltered in a vehicle (p<0.05) or outdoors (p<0.001), weekly illicit drug use (p<0.01), and psychological distress (p<0.001); violent victimization was associated with being sheltered (p<0.05) or unsheltered outdoors (p<0.001), physical health conditions (p<0.05), and psychological distress (p<0.01); and sexual victimization was associated with non-male gender (p<0.05) and being unsheltered outdoors (p<0.05). Discrimination and victimization outcomes were not associated with any race/ethnicity, sexual orientation, or time homeless characteristics. CONCLUSIONS: Study findings highlight the dangers of homelessness in the U.S., particularly for those who are unsheltered outdoors.

Toward Critically Analyzing Whiteness in Immigrant Health.

Assimilation theories dominate immigration scholarship to examine differential life chances, opportunities, and health of immigrants across three waves of immigrants in the United States. Assimilation theories are widely used in public health to explain the health status of immigrants despite the embedded White supremacist ideology while ignoring the role of whiteness. This article reviews and critiques assimilation theories to propose a critical analysis of whiteness in immigrant health scholarship. Critically analyzing whiteness in immigrant health studies allows us to recognize (a) the problematic framing of assimilation theories because of the theories' devotion to a White-European vision of upward mobility and a mainstream characterized as elite and White and (b) how a purportedly colorblind immigration law reinforces White supremacy through possessive investment in whiteness. To highlight whiteness in immigrant health, we examine the anti-immigration rhetoric and anti-immigrant policies and surveillance while providing implications for future research in the scholarship of immigrant health.

Perceptions of COVID-19 risk during the pandemic: perspectives from people seeking medication for opioid use disorder.

INTRODUCTION: The Coronavirus Disease 2019 (COVID-19) pandemic has had devastating consequences for persons with opioid use disorder (OUD). Yet, little is known about how people seeking treatment for OUD perceive the risks of COVID-19 and how their perception interplays with their health behaviours. METHODS: In-depth interviews were conducted from September 2021 to March 2022 with 32 patients seeking medication treatment for OUD (MOUD) in Southern California. All interviews were conducted virtually and lasted between one and two hours. Interviews were recorded and transcribed verbatim. Two qualitative researchers independently conducted a content analysis of the transcripts to identify themes. RESULTS: Three primary themes were identified: (1) perceptions and beliefs about COVID-19 susceptibility and severity; (2) perceptions of COVID-19 risk compared to substance use behaviours; and (3) vaccine hesitancy. Participants were mixed in their beliefs of susceptibility to contracting COVID-19 and the severity of the disease if contracted. Some participants reported taking precautions to mitigate their chances of acquiring COVID-19, and other participants reported that COVID was not a big concern as substance use took priority. For many of the participants, COVID-19 concerns were overshadowed by the risk of overdosing on substances and other risky substance use behaviour. Most of the participants (n = 23; 72%) had received at least one COVID-19 vaccine by the time of the interview, but over half (n = 19; 59%) expressed vaccine hesitancy. Vaccine hesitancy was driven by concerns about the unknown long-term side effects and potential interactions of the vaccine with MOUD. CONCLUSIONS: Our study provides insight into COVID-19 prevention measures as well as vaccination perceptions and hesitancy among people who received treatment for OUD.Key messagesParticipants expressed diverse perceptions of the seriousness of COVID-19, with some taking precautions to mitigate their chances of acquiring COVID-19 and others perceiving that the risk of contracting COVID-19 was less than the risk of overdosing.Substance use, social isolation, vaccine hesitancy and COVID-19 risk behaviours should be studied as co-occurring phenomena that have potentially overlapping relationships that can influence behaviours that impact health and well-being.

The impact of COVID-19 on substance use disorder treatment in California: Service providers' perspectives.

BACKGROUND: The COVID-19 pandemic has had a profound impact on the U.S. health care system, including addiction treatment. The objective of this study is to describe the impact of COVID on the delivery of treatment for substance use disorders (SUDs) from the perspectives of service providers. METHODS: Between May and September 2020, 61 service providers from 16 SUD treatment sites in California participated in virtual focus groups that lasted about an hour. We recorded the discussions and transcribed them verbatim. Two qualitative analysts independently conducted content analysis to identify themes from the transcripts. RESULTS: At the beginning of the pandemic, service providers observed a slight decrease in patient admissions, followed by an uptick in patient flow due to increased mental health issues, alcohol use, and relapse. Many of the clinics adopted flexible service delivery modes, such as curbside dosing and extended take-home medication, to enable social distancing in clinic settings. Approximately half of the clinic encounters offered telemedicime, and a considerable proportion of patients preferred to use telephone-based services rather than video-based services. Internet instability and technical difficulties limited the use of telemedicine among their patients. CONCLUSION: COVID has been challenging for SUD treatment, but health care systems rapidly reacted with adjustments that may result in long-term changes in SUD service delivery. Telemedicine-based services have played a major role in ensuring uninterrupted patient care. Providers need organizational, technical, and logistical support to improve and sustain telemedicine services that increase access to quality care for their patients.

Patient decision aid for medication treatment for opioid use disorder (PtDA-MOUD): Rationale, methodology, and preliminary results.

BACKGROUND AND AIMS: As treatment for opioid use disorder (OUD) expands within general healthcare settings such as primary care, mechanisms to facilitate decision-making processes are increasingly necessary. Decision aids have the capacity to bolster existing resources in diverse treatment settings by increasing knowledge of treatment options and facilitating shared decision making. The aim of this study is to develop and test a patient decision aid for medication treatment for opioid use disorder (PtDA-MOUD) that assists individuals with OUD in making informed decisions about treatment at the time of initial clinical visit. Use of the PtDA-MOUD will be further tested in diverse treatment settings within the California Hub and Spoke System developed under the SAMHSA State Targeted Response to the Opioid Crisis grants. METHODS: The PtDA-MOUD was iteratively developed with input from a scientific expert panel and both patient and provider focus groups, incorporating International Patient Decision Aid Standards. Thirty-six patients with OUD entering treatment pilot tested the PtDA and completed assessments, and results from clinical records were compared with matched controls who did not receive the PtDA. A clinical profile based on assessment data was created for use within the clinical visit. RESULTS: The developed decision aid provides information on MOUD and captures patient characteristics relevant to medication treatment decisions. Feedback indicated that the PtDA-MOUD was feasible to implement and useful. Though the small sample size limited the ability to detect significant differences (p > .05), a greater number of individuals who reviewed the PtDA (37%) were inducted on MOUD than controls (11%) and received MOUD for more days (M = 14.0, SD = 24.7) than controls (M = 8.4; SD = 22.5). Moreover, the difference in means for days receiving MOUD had an approximately medium effect size (r = 0.25). CONCLUSIONS: Patient perceptions of the decision aid were favorable and it showed promise as a tool in the OUD treatment process. Pilot testing results suggested preliminary positive effects on MOUD initiation. Future phases of this study will further investigate the usefulness of this tool. ClinicalTrials.govIdentifier:NCT03394261.

Patient perceptions of treatment with medication treatment for opioid use disorder (MOUD) in the Vermont hub-and-spoke system.

In 2013, Vermont leaders implemented the "hub-and-spoke" (H & S) system to increase access to medication treatment for opioid use disorder (MOUD). "Hubs" are licensed specialty opioid treatment programs (OTPs) with the authority to dispense buprenorphine/naloxone and methadone. "Spokes" are primary care practices that provide office-based opioid treatment, primarily with buprenorphine/naloxone. This report describes the qualitative component of an evaluation of the H&S system, conducted in 2016. The qualitative data collection assessed patient perspectives about the positive and negative aspects of treatment in the H & S system. The data collected included 80 responses to five open-ended questions and 24 in-depth interviews. Five open-ended questions were completed with hub (n = 40) and spoke (n = 40) participants. In-depth qualitative interviews were conducted with different hub (n =12) and spoke (n =12) participants. Findings from both data collection approaches suggest positive perceptions about treatment overall by patients treated in both settings. Participants treated in spokes reported a positive treatment environment, minimal stigma, and few obstacles to treatment and a strong positive relationship with their prescriber. Hub patients valued the MOUD and expressed gratitude for having access to MOUD, but reported the treatment environment was somewhat challenging, with long lines and drug talk in the clinic, high staff turnover and "cookie cutter" treatment. There appear to be some differences in patient perceptions of MOUD treatment between patients treated in primary care settings and specialized OTP settings.

Identification of C-Terminal Binding Protein 1 as a Novel NMDA Receptor Interactor.

A new N-methyl D aspartate neurotransmitter receptor interacting protein has been identified by yeast two-hybrid screening of a mouse brain cDNA library. C-terminal binding protein 1 (CtBP1) was shown to associate with the intracellular C-terminal regions of the N-methyl D aspartate receptor subunits GluN2A and GluN2D but not with GluN1-1a cytoplasmic C-terminal region. In yeast mating assays using a series of GluN2A C-terminal truncations, it was demonstrated that the CtBP1 binding domain was localized to GluN2A 1157-1382. The GluN2A binding domain was identified to lie within the CtBP1 161-224 region. CtBP1 co-immunoprecipitated with assembled GluN1/GluN2A receptors expressed in mammalian cells and also, in detergent extracts of adult mouse brain. Co-expression of CtBP1 with GluN1/GluN2A resulted in a significant decrease in receptor cell surface expression. The family of C-terminal binding proteins function primarily as transcriptional co-repressors. However, they are also known to modulate intracellular membrane trafficking mechanisms. Thus the results reported herein describe a putative role for CtBP1 in the regulation of cell surface N-methyl D aspartate receptor expression.

Assessment of medication for opioid use disorder as delivered within the Vermont hub and spoke system.

Opioid overdose deaths in the United States have risen dramatically in the past decade. In response to this public health crisis, Vermont created an innovative system called the "hub-and-spoke" (H & S) system, initiated in January 2013. The H & S system has 7 regional "hubs" that offer methadone and buprenorphine, as well as intensive support, and 77 local "spokes" (primary care settings) that offer buprenorphine (and naltrexone to a much lesser extent). Questionnaires were administered to 80 participants in the H & S system (stratified by geographic region, treatment site, and gender) and 20 participants with opioid use disorder not currently in treatment. Data included demographics, drug and alcohol use; opioid use; injection use; education/employment; criminal justice involvement; family and relationship functioning; health and healthcare utilization; multiple areas of mental health functioning; opioid overdose; satisfaction with life areas; stigma; and perceived treatment effectiveness. In-treatment group participants reported use and functioning for the 90 days prior to the date of the interview (T2) and, retrospectively, a comparable 90-day period prior to treatment entry (T1). Out-of-treatment group participants were queried about functioning at the time of the interview (T2) and 12 months earlier (T1). Individuals not in treatment showed no meaningful changes in any domain from T1 to T2. Conversely, participants currently in treatment in the H & S system showed large reductions in substance use, overdoses, emergency department visits, police contacts, and family conflict, and improvements in mood and satisfaction with all areas of life, except work/school participation. Additionally, 85% of in-treatment participants reported 90-day abstinence from opioid use compared to 0% of out-of-treatment participants at T2. These findings illustrate that medication for opioid use disorders, as delivered in the H & S system in Vermont, is highly effective for reducing opioid use and overdose and improving functioning in many life domains.

The Los Angeles County hub-and-provider network for promoting the sustained use of extended-release naltrexone (XR-NTX) in Los Angeles County (2010-2015).

Extended-release naltrexone (XR-NTX) is a medication-assisted treatment (MAT) that is used in conjunction with psychosocial treatment for substance use disorder. It is associated with a reduction in the number of days that patients use alcohol or opioids, in cravings and drug-seeking behaviors, and in healthcare utilization costs, as well as improved medication adherence rates for patients in substance use disorder (SUD) treatment programs and improved quality of life. Despite the clinical effectiveness of XR-NTX, its clinical use has been slow to develop. There is little research describing the utilization of XR-NTX over time at the treatment-system level and few documented attempts to promote MAT by creating a system to explicitly promote and sustain MAT use. This study examines changes between April 1, 2010, and March 30, 2015, in the utilization patterns of XR-NTX for SUDs as promoted and delivered in a system of "medication hubs," comprised of community providers and a medication coordinating center, and training efforts. This system was implemented as part of a large demonstration project that was designed to provide access to XR-NTX in Los Angeles County. Our findings indicated an increase in the initiation of XR-NTX (59% increase) and subsequent doses (89% increase) from Year 1 to Year 5 of the project (p<0.001). These findings suggest that it is possible to improve MAT utilization (in this case XR-NTX) through the use of a system of care that minimizes MAT payment issues for providers and patients, provides an infrastructure (medication hubs and SUD treatment providers), promotes system coordination, and educates providers.

Effectiveness of extended release naltrexone to reduce alcohol cravings and use behaviors during treatment and at follow-up.

Changes in cravings to drink alcohol and alcohol use behaviors were examined among 337 patients who were administered extended-release naltrexone (XR-NTX) in conjunction with psychosocial treatment in community-based substance use disorder treatment programs. Cravings and use behaviors were assessed at multiple time points (baseline; weeks 1, 2, and 3 after the first dose; monthly after the first four assessments; and at 30- and 60-days after the last dose). A total of 863 doses (M=2.6, SD=1.8) were administered and the majority of patients (65%) took more than one dose. Alcohol craving scores decreased from 19 to 5.7 after the first dose of XR-NTX. Days of primary alcohol use at admission (M=10.5, SD=10.1) were reduced at discharge (M=to 1.2, SD=4.6). At the first follow-up, 79.8% reported no alcohol use and 77.8% reported no alcohol use at the second follow-up. The expected side effects were reported but the medication was well tolerated and there was no relationship between side effects and subsequent dose. Unexamined or unaccounted for variables (e.g., motivation, external pressures to remain in treatment) are "real world" consequences that may have impacted the outcome of this study. Results indicated that use of the antagonist medication XR-NTX may be related to significant decreases in alcohol craving and use while a patient is in treatment, as well as at 30- and 60-days after the final dose.

Gender differences in treatment and clinical characteristics among patients receiving extended release naltrexone.

Further research is needed to investigate real-world acceptability of extended-release naltrexone for alcohol and opioid use disorders, and potential gender differences. This study examines treatment and clinical characteristics among men and women receiving extended-release naltrexone in a large, publicly funded substance use disorder treatment system (N = 465; 52% female). Patient demographics, treatment characteristics, and the number of extended-release naltrexone doses received were collected from administrative data and treatment program staff. Additionally, patients provided information on experiences with extended-release naltrexone in an open-ended format at 1, 2, and 3 weeks following their first injection. For a subsample of patients (N = 220), alcohol/opioid cravings and specific adverse effects were also assessed. Compared to men, women reported experiencing a higher rate and mean number of adverse effects. Overall, craving scores showed substantial reductions over time. However, among patients taking extended-release naltrexone for alcohol use, women showed a significantly greater reduction in craving scores compared to men. No gender differences were observed in the number of extended-release naltrexone doses received. Although women may have a greater need for additional support in managing early adverse effects, extended-release naltrexone as an adjunct to psychosocial treatment may be an acceptable and promising treatment approach for both men and women, and particularly for women prescribed extended-release naltrexone for alcohol use. This study contributes further information on patients' experiences during the early course of extended-release naltrexone treatment in real-world settings. Understanding these experiences may assist policy makers and treatment providers in addressing challenges of implementing this treatment into wider practice.

Predictors of Continued Use of Extended-Released Naltrexone (XR-NTX) for Opioid-Dependence: An Analysis of Heroin and Non-Heroin Opioid Users in Los Angeles County.

Extended-release naltrexone (XR-NTX) is associated with an increased number of opioid-free days, improved adherence rates in substance use disorder treatment programs, and reduced cravings and drug-seeking behaviors. There is little evidence on the predictive associations between baseline characteristics of opioid-dependent patients and XR-NTX utilization. Some studies have demonstrated better pharmacotherapy adherence and/or retention rates among non-heroin opioid users compared to heroin users. This study examines predictive associations between characteristics of patients and XR-NTX utilization, as well as participants' urge to use opiates. Our findings suggest that XR-NTX may contribute to decreases in urges to use among both heroin and non-heroin opioid users. Non-heroin opioid users and heroin users were retained in XR-NTX treatment for comparable periods of time. However, those who identified as homeless, injected opioids (regardless of opioid-type), or were diagnosed with a mental illness were less likely to be retained in treatment with XR-NTX.

Electronic health record solutions to reduce central line-associated bloodstream infections by enhancing documentation of central line insertion practices, line days, and daily line necessity.

BACKGROUND: Central line-associated bloodstream infections (CLABSIs) continue to cause preventable morbidity and mortality, but methods for tracking and ensuring consistency of CLABSI-prevention activities remain underdeveloped. METHODS: We created an integrated electronic health record solution to prompt sterile central venous catheter (CVC) insertion, CVC tracking, and timely line removal. The system embedded central line insertion practices (CLIP) elements in inserter procedure notes, captured line days and new lines, matching each with its CLIP form and feeding back compliance, and enforced daily documentation of line necessity in physician progress notes. We examined changes in CLIP compliance and form submission, number of new line insertions captured, and necessary documentation. RESULTS: Standard reporting of CLIP compliance, which measures compliance per CLIP form received, artificially inflated CLIP compliance relative to compliance measured using CVC placements as the denominator; for example, 99% per CLIP form versus 55% per CVC placement. This system established a higher threshold for CLIP compliance using this denominator. Identification of CVCs increased 35%, resulting in a decrease in CLABSI rates. The system also facilitated full compliance with daily documentation of line necessity. CONCLUSIONS: Integrated electronic health records systems can help realize the full benefit of CLABSI prevention strategies by promoting, tracking, and raising the standard for best practices behavior.

Surgery for the resolution of symptoms in malignant bowel obstruction in advanced gynaecological and gastrointestinal cancer.

BACKGROUND: This is an update of the original Cochrane review published in Issue 4, 2000. Intestinal obstruction commonly occurs in progressive advanced gynaecological and gastrointestinal cancers. Management of these patients is difficult due to the patients' deteriorating mobility and function (performance status), the lack of further chemotherapeutic options, and the high mortality and morbidity associated with palliative surgery. There are marked variations in clinical practice concerning surgery in these patients between different countries, gynaecological oncology units and general hospitals, as well as referral patterns from oncologists under whom these patients are often admitted. OBJECTIVES: To assess the efficacy of surgery for intestinal obstruction due to advanced gynaecological and gastrointestinal cancer. SEARCH METHODS: We searched the following databases for the original review in 2000 and again for this update in June 2015: CENTRAL (2015, Issue 6); MEDLINE (OVID June week 1 2015); and EMBASE (OVID week 24, 2015).We also searched relevant journals, bibliographic databases, conference proceedings, reference lists, grey literature and the world wide web for the original review in 2000; we also used personal contact. This searching of other resources yielded very few additional studies. The Cochrane Pain, Palliative and Supportive Care Review Group no longer routinely handsearch journals. For these reasons, we did not repeat the searching of other resources for the June 2015 update. SELECTION CRITERIA: As the review concentrates on the 'best evidence' available for the role of surgery in malignant bowel obstruction in known advanced gynaecological and gastrointestinal cancer we kept the inclusion criteria broad (including both prospective and retrospective studies) so as to include all studies relevant to the question. We sought published trials reporting on the effects of surgery for resolving symptoms in malignant bowel obstruction for adult patients with known advanced gynaecological and gastrointestinal cancer. DATA COLLECTION AND ANALYSIS: We used data extraction forms to collect data from the studies included in the review. Two review authors extracted the data independently to reduce error. Owing to concerns about the risk of bias we decided not to conduct a meta-analysis of data and we have presented a narrative description of the study results. We planned to resolve disagreements by discussion with the third review author. MAIN RESULTS: In total we have identified 43 studies examining 4265 participants. The original review included 938 patients from 25 studies. The updated search identified an additional 18 studies with a combined total of 3327 participants between 1997 and June 2015. The results of these studies did not change the conclusions of the original review.No firm conclusions can be drawn from the many retrospective case series so the role of surgery in malignant bowel obstruction remains controversial. Clinical resolution varies from 26.7% to over 68%, though it is often unclear how this is defined. Despite being an inadequate proxy for symptom resolution or quality of life, the ability to feed orally was a popular outcome measure, with success rates ranging from 30% to 100%. Rates of re-obstruction varied, ranging from 0% to 63%, though time to re-obstruction was often not included. Postoperative morbidity and mortality also varied widely, although again the definition of both of these surgical outcomes differed between many of the papers. There were no data available for quality of life. The reporting of adverse effects was variable and this has been described where available. Where discussed, surgical procedures varied considerably and outcomes were not reported by specific intervention. Using the 'Risk of bias' assessment tool, most included studies were at high risk of bias for most domains. AUTHORS' CONCLUSIONS: The role of surgery in malignant bowel obstruction needs careful evaluation, using validated outcome measures of symptom control and quality of life scores. Further information could include re-obstruction rates together with the morbidity associated with the various surgical procedures.Currently, bowel obstruction is managed empirically and there are marked variations in clinical practice by different units. In order to compare outcomes in malignant bowel obstruction, there needs to be a greater degree of standardisation of management.Since the last version of this review none of the new included studies have provided additional information to change the conclusions.

A demonstration project implementing extended-release naltrexone in Los Angeles County.

BACKGROUND: Extended-released naltrexone (XR-NTX) is a Food and Drug Administration (FDA)-approved medication associated with higher rates of abstinence, reduced cravings, and delayed relapse to use. However, there is a dearth of literature on real-world implementation of XR-NTX. The Los Angeles County Department of Public Health, in collaboration with UCLA Integrated Substance Abuse Programs, developed a demonstration project to increase access to XR-NTX. This article describes that project, along with data on the expansion of XR-NTX service delivery and patient uptake. METHODS: A secondary descriptive data analysis of demographics, substance use history, current substance use behaviors, health-related variables, and dosing records was conducted on 609 patients who received XR-NTX from Los Angeles County substance use disorder (SUD) treatment facilities from April 2010 through July 2013. A geographic information system approach mapped the distribution of XR-NTX-referring agencies across Los Angeles County. RESULTS: Of the 609 records analyzed, a majority of patients (64%) obtained more than 1 dose of XR-NTX. Most XR-NTX patients reported alcohol use disorder (71.9%; n = 438). Compared with the general Los Angeles County substance use disorder patients, XR-NTX recipients reported more severe substance use histories. Finally, XR-NTX was accessed by providers in 6 of the 8 Service Planning Areas of Los Angeles County. CONCLUSIONS: These findings reflect a higher XR-NTX cessation rate and a lower average number of doses, in contrast to similar demonstration projects in community settings with patients on parole or probation. However, this study shows that it is feasible to engage treatment providers in the use XR-NTX among their patients with alcohol or opioid use disorders. Several implications for future research and implementation are discussed.

APLP1 and APLP2, members of the APP family of proteins, behave similarly to APP in that they associate with NMDA receptors and enhance NMDA receptor surface expression.

The function of amyloid precursor protein (APP) is unknown, although the discovery that it contributes to the regulation of surface expression of N-methyl-D-aspartate (NMDA) receptors has afforded new insights into its functional significance. Since APP is a member of a gene family that contains two other members, amyloid precursor-like proteins 1 and 2 (APLP1 and APLP2), it is important to determine if the related APP proteins possess the same properties as APP with respect to their interactions with NMDA receptors. Following expression in mammalian cells, both APLP1 and APLP2 behaved similarly to APP in that they both co-immunoprecipitated with the two major NMDA receptor subtypes, GluN1/GluN2A and GluN1/GluN2B, via interaction with the obligatory GluN1 subunit. Immunoprecipitations from detergent extracts of adult mammalian brain showed co-immunoprecipitation of APLP1 and APLP2 with GluN2A- and GluN2B-containing NMDA receptors. Furthermore, similarly to APP, APLP1 and APLP2 both enhanced GluN1/GluN2A and GluN1/GluN2B cell surface expression. Thus, all the three members of the APP gene family behave similarly in that they each contribute to the regulation of cell surface NMDA receptor homoeostasis. Amyloid precursor protein (APP) has been shown to associate with N-methyl-d-aspartate (NMDA) receptors and to enhance their cell surface expression. Here, we show that the other members of the APP family, APLP1 and APLP2, behave similarly to APP in that they both associate with assembled NMDA receptors in the endoplasmic reticulum via their interaction with the NMDA receptor subunit, GluN1 and, they enhance receptor cell surface expression. Alternative scenarios are depicted since it is to be determined if respective associations are direct.

Automated tracking and ordering of precautions for multidrug-resistant organisms.

BACKGROUND: The transmission and infection risk associated with multidrug-resistant organism (MDRO) carriers necessitates surveillance and tracking to provide proper contact precautions. As MDROs increase in scope, automated electronic health record (EHR) systems may help with surveillance demands. METHODS: We created a system for MDROs and Clostridium difficile tracking that automated the following 3 main surveillance and tracking activities: monitoring of microbiology results and initiation of chart-based flags, ordering of contact precautions on admission, and ensuring appropriate removal of precautions. RESULTS: Automation saved 43 infection preventionist hours per 1,000 admissions, in addition to previously unquantified hours spent reviewing MDRO history for every admission. Automatic retiring of certain MDRO flags ensured removal of contact precautions after a specified time. A point-prevalence assessment for eligibility for discontinuation found that all precautions were appropriate, with none eligible for removal. By integrating microbiology data, EHR tracking flags, and automated orders, this system assured rapid and comprehensive placement of patients into contact precautions without requiring oversight by infection prevention personnel. CONCLUSION: We show that automated systems embedded within EHRs can ensure tracking and application of appropriate contact precautions while simultaneously producing tremendous time savings for infection prevention programs.

Electronic solutions to enhance tracking and compliance with mandatory influenza vaccination for all hospital staff.

In implementing a hospital mandatory influenza vaccination policy, we developed an automated, real-time tracking and reminder system. Of 6,957 policy-covered individuals automatically identified, automated reminders left only 5 requiring counseling. This decreased Occupational Health workload in contacting noncompliant individuals and hosting vaccination events while simultaneously facilitating a 96% vaccination rate.

Neto1 associates with the NMDA receptor/amyloid precursor protein complex.

Neuropilin tolloid-like 1 (Neto1), is a CUB domain-containing transmembrane protein that was recently identified as a novel component of the NMDA receptor complex. Here, we have investigated the possible association of Neto1 with the amyloid precursor protein (APP)695/GluN1/GluN2A and APP695/GluN1/GluN2B NMDA receptor trafficking complexes that we have previously identified. Neto1(HA) was shown to co-immunoprecipitate with assembled NMDA receptors via GluN2A or GluN2B subunits; Neto1(HA) did not co-immunoprecipitate APP695(FLAG) . Co-immunoprecipitations from mammalian cells co-transfected with APP695(FLAG) , Neto1(HA) and GluN1/GluN2A or GluN1/GluN2B revealed that all four proteins co-exist within one macromolecular complex. Immunoprecipitations from native brain tissue similarly revealed the existence of a GluN1/GluN2A or GluN2B/APP/Neto1 complex. Neto1(HA) caused a reduction in the surface expression of both NMDA receptor subtypes, but had no effect on APP695(FLAG) - or PSD-95α(c-Myc) enhanced surface receptor expression. The Neto1 binding domain of GluN2A was mapped using GluN1/GluN2A chimeras and GluN2A truncation constructs. The extracellular GluN2A domain does not contribute to association with Neto1(HA) but deletion of the intracellular tail resulted in a loss of Neto-1(HA) co-immunoprecipitation which was paralleled by a loss of association between GluN2A and SAP102. Thus, Neto1 is concluded to be a component of APP/NMDA receptor trafficking complexes.

An analysis of relapse prevention factors and their ability to predict sustained abstinence following treatment completion.

BACKGROUND & OBJECTIVES: This study assessed the role of 14 specific relapse-prevention activities and their underlying factors in maintaining abstinence among subjects (N = 302) completing outpatient treatment for stimulant dependence. METHODS: We examined what broader dimensions might subsume the 14 items constituting the Drug Avoidance Activities checklist (Farabee et al. J Subst Abuse Treat 2002;23:343-350), and how well these derived factors predicted concurrent drug use at baseline and again 3 and 12 months later. RESULTS: Although four factors were identified consistently for the three time points, only avoidance strategies had sufficient internal consistency to be retained for further analysis. Controlling for age, gender, and ethnicity, the avoidance subscale was a significant predictor of UA results at all time periods: a one-point increase in the avoidance strategies scale was associated with an 86% increase in odds of a negative UA at baseline (OR = 1.86, 95% CI = 1.37-2.53, p < .001), a 77% increase at 3-month follow-up (OR = 1.77, CI = 1.37-2.29, p < .001), and a 37% increase at 12-month follow-up (OR = 1.37, CI = 1.04-1.81, p = .026). CONCLUSIONS: Although correlations of individual items with UA results showed statistically significant (p < .05) results for 8 of 14 items at one or more observation points, avoidance-related behaviors showed the strongest associations with sustained abstinence.