mRNA-LNP HIV-1 trimer boosters elicit precursors to broad neutralizing antibodies.

Germline-targeting (GT) HIV vaccine strategies are predicated on deriving broadly neutralizing antibodies (bnAbs) through multiple boost immunogens. However, as the recruitment of memory B cells (MBCs) to germinal centers (GCs) is inefficient and may be derailed by serum antibody-induced epitope masking, driving further B cell receptor (BCR) modification in GC-experienced B cells after boosting poses a challenge. Using humanized immunoglobulin knockin mice, we found that GT protein trimer immunogen N332-GT5 could prime inferred-germline precursors to the V3-glycan-targeted bnAb BG18 and that B cells primed by N332-GT5 were effectively boosted by either of two novel protein immunogens designed to have minimum cross-reactivity with the off-target V1-binding responses. The delivery of the prime and boost immunogens as messenger RNA lipid nanoparticles (mRNA-LNPs) generated long-lasting GCs, somatic hypermutation, and affinity maturation and may be an effective tool in HIV vaccine development.

Program of All-Inclusive Care for the Elderly: an untapped setting for research to advance pain care in older persons.

The Program of All-Inclusive Care for the Elderly (PACE) is a community-based care model in the United States that provides comprehensive health and social services to frail, nursing home-eligible adults aged 55 years and older. PACE organizations aim to support adequate pain control in their participants, yet few evidence-based pain interventions have been adopted or integrated into this setting. This article provides a roadmap for researchers who are interested in collaborating with PACE organizations to embed and evaluate evidence-based pain tools and interventions. We situate our discussion within the Consolidated Framework for Implementation Research (CFIR), a meta-theoretical framework that considers multi-level influences to implementation and evaluation of evidence-based programs. Within each CFIR domain, we identify key factors informed by our own work that merit consideration by research teams and PACE collaborators. Inner setting components pertain to the organizational culture of each PACE organization, the type and quality of electronic health record data, and availability of staff to assist with data abstraction. Outer setting components include external policies and regulations by the National PACE Association and audits conducted by the Centers for Medicare and Medicaid Services, which have implications for research participant recruitment and enrollment. Individual-level characteristics of PACE organization leaders include their receptivity toward new innovations and perceived ability to implement them. Forming and sustaining research-PACE partnerships to deliver evidence-based pain interventions pain will require attention to multi-level factors that may influence future uptake and provides a way to improve the health and well-being of patients served by these programs.

Interventions for behavioral health comorbidities in the hospice setting: a scoping review.

BACKGROUND: Behavioral health (BH) comorbidities in hospice patients are widespread and impact important outcomes, including symptom burden, quality of life, and caregiver wellbeing. However, evidencebased BH interventions tailored for the hospice setting remain understudied. METHODS: We conducted a scoping review with the objective of mapping studies of interventions for BH comorbidities in the hospice setting. We included empirical studies among hospice patients of interventions with BH outcomes. We abstracted data on study design, intervention type, and patient characteristics. RESULTS: Our search generated 7,672 unique results, of which 37 were ultimately included in our analysis. Studies represented 16 regions, with the United Kingdom (n=13) most represented. The most frequent intervention type was complementary and alternative interventions (n=13), followed by psychotherapeutic interventions (n=12). Most of the studies were either pilot or feasibility investigations. Fifteen studies employed a randomized controlled trial design. The most frequently utilized measurement tools for BH outcomes included the Hospital Anxiety and Depression Scale and the Edmonton Symptom Assessment Scale. Seventeen studies demonstrated statistically significant results in a BH outcome measure. BH conditions prevalent among hospice patients that were the focus of intervention efforts included depression symptoms, anxiety symptoms, and general psychological distress. No study focused on trauma-related disorders or substance use disorders. CONCLUSIONS: This scoping review reveals a concerning gap in research regarding evidence-based BH interventions in hospice settings, especially in the U.S. Despite extensive utilization of hospice care services and the high prevalence of BH conditions among hospice patients, randomized controlled trials focused on improving BH outcomes remain scant. The current BH practices, like the widespread use of benzodiazepines and antipsychotics, may not be rooted in robust evidence, underscoring an urgent need for investment in hospice research infrastructure and tailored clinical trials to test behavioral approaches to mitigate mental health outcomes at the end of life.

Bioinformatic, Biochemical, and Immunological Mining of MHC Class I Restricted T Cell Epitopes for a Marburg Nucleoprotein Microparticle Vaccine.

The Marburg virus (MARV), the virus responsible for Marburg hemorrhagic fever (MHF), is considered a top-priority pathogen for vaccine development. Recent outbreaks in Equatorial Africa have highlighted the urgency of MARV because of its high fatality rate and historical concerns about potential weaponization. Currently, there are no licensed vaccines for MARV. Existing vaccine candidates rely on attenuated recombinant vesicular stomatitis virus carrying MARV glycoprotein (VSVΔG) or the chimpanzee replication-defective adenovirus 3 vector ChAd3-MARV. Although these platforms provide significant protection in animal models, they face challenges because of their limited thermal stability and the need for cold storage during deployment in resource-poor areas. An alternative approach involves using adjuvanted poly (lactic-co-glycolic acid) (PLGA) microparticles loaded with synthetic peptides representing MHC class I-restricted T cell epitopes. This vaccine platform has demonstrated effectiveness in protecting against SARS-CoV-2 and EBoV disease in animal models and has the advantage of not requiring cold storage and remaining stable at room temperature for over six months. This report outlines the design, manufacturing, and in vivo immunogenicity testing of PLGA microparticle human vaccines designed to prevent Marburg hemorrhagic fever.

Association of phenotypic frailty and hand grip strength with telomere length in SLE.

OBJECTIVE: Frailty and objective hand grip strength (one of the components of the frailty phenotype) are both risk factors for worse health outcomes in SLE. Whether telomere length, an established cellular senescence marker, is a biologic correlate of the frailty phenotype and hand grip strength in patients with SLE is not clear. First, we aimed to evaluate differences in telomere length between frail and non-frail women with SLE and then assessed whether frailty or hand grip strength is differentially associated with telomere length after adjusting for relevant confounders. METHODS: Women ≥18 years of age with validated SLE enrolled at a single medical centre. Fried frailty status (which includes hand grip strength), clinical characteristics and telomere length were assessed cross-sectionally. Differences between frail and non-frail participants were evaluated using Fisher's exact or Wilcoxon rank-sum tests. The associations between frailty and hand grip strength and telomere length were determined using linear regression. RESULTS: Of the 150 enrolled participants, 131 had sufficient data for determination of frailty classification; 26% were frail with a median age of 45 years. There was a non-significant trend towards shorter telomere length in frail versus non-frail participants (p=0.07). Hand grip strength was significantly associated with telomere length (beta coefficient 0.02, 95% CI 0.004, 0.04), including after adjustment for age, SLE disease activity and organ damage, and comorbidity (beta coefficient 0.02, 95% CI 0.002, 0.04). CONCLUSIONS: Decreased hand grip strength, but not frailty, was independently associated with shortened telomere length in a cohort of non-elderly women with SLE. Frailty in this middle-aged cohort may be multifactorial rather than strictly a manifestation of accelerated ageing.

Mental Health Service Integration in Hospice Organizations: A National Survey of Hospice Clinicians and Medical Leadership.

Background: Unmet mental health needs are associated with a range of negative consequences for individuals at the end of life. Despite the high prevalence of mental health needs among individuals enrolled in hospice, there is a paucity of data describing mental health service integration in hospices in the United States. Objectives: 1. To identify patterns of mental health service integration in hospice organizations nationally; 2. To characterize gaps in mental health service delivery in hospice settings as perceived by hospice clinicians and medical leadership. Methods: A cross-sectional survey querying hospice clinicians and hospice medical leadership nationally. Results: A total of 279 surveys were included. Clinically significant mental health symptoms were common among hospice patients; the most frequently encountered symptom groups were depression, anxiety, dementia, and delirium. A minority of hospices maintained relationships with psychiatrists (23%, n = 60), psychiatric nurse practitioners (22%, n = 56), or psychologists (19%, n = 49). Only 38% (n = 99) of respondents were satisfied with their patients' access to services and only 45% (n = 118) were satisfied with the quality of these services. Common limitations to providing adequate mental health services included lack of specialist services, short length of stay for patients, and reluctance of patients to engage in these services. Conclusions: Significant mental health symptoms are common among hospice patients, and hospice organizations perceive these needs are not being met. Further research is needed to better understand the current treatment landscape and design interventions to address these needs.

Adaptive Care Planning: A paradigm shift.

A key challenge of implementing advance care planning lies in the fact that decisions made in advance require patients and their family members to imagine what their clinical picture will look like rather than knowing or experiencing the clinical circumstances as they unfold. Even more important is the acknowledgment of the unpredictability of a given clinical course. This type of situation requires adaptiveness and flexibility in decision-making that frequently occurs in the moment(s) triggered by changes in health state(s). We describe an alternative frameshifting approach called "Adaptive Care Planning (AdaptCP)," which features an evolving communication between physicians and patients/families with ongoing incorporation of the patient's/family's perspective. This process continues iteratively until each decision can be reached in a way that is both harmonious with the patient's/family's perspective and is consistent with medical treatment options that are actionable for the healthcare team. We include a table of tools drawn from the literature that can help clinicians when implementing AdaptCP.

Population genomic structure of a widespread, urban-dwelling mammal: The eastern grey squirrel (Sciurus carolinensis).

Urbanization is a persistent and widespread driver of global environmental change, potentially shaping evolutionary processes due to genetic drift and reduced gene flow in cities induced by habitat fragmentation and small population sizes. We tested this prediction for the eastern grey squirrel (Sciurus carolinensis), a common and conspicuous forest-dwelling rodent, by obtaining 44K SNPs using reduced representation sequencing (ddRAD) for 403 individuals sampled across the species' native range in eastern North America. We observed moderate levels of genetic diversity, low levels of inbreeding, and only a modest signal of isolation-by-distance. Clustering and migration analyses show that estimated levels of migration and genetic connectivity were higher than expected across cities and forested areas, specifically within the eastern portion of the species' range dominated by urbanization, and genetic connectivity was less than expected within the western range where the landscape is fragmented by agriculture. Landscape genetic methods revealed greater gene flow among individual squirrels in forested regions, which likely provide abundant food and shelter for squirrels. Although gene flow appears to be higher in areas with more tree cover, only slight discontinuities in gene flow suggest eastern grey squirrels have maintained connected populations across urban areas in all but the most heavily fragmented agricultural landscapes. Our results suggest urbanization shapes biological evolution in wildlife species depending strongly on the composition and habitability of the landscape matrix surrounding urban areas.

Assessing the feasibility, acceptability, and preliminary efficacy of a novel symptom management care delivery intervention for caregivers receiving home hospice care: The I-HoME protocol.

BACKGROUND: Terminally ill patients experience high symptom burden at the end of life (EoL), even when receiving hospice care. In the U.S., family caregivers play a critical role in managing symptoms experienced by patients receiving home hospice services. Yet, most caregivers don't receive sufficient support or formal training in symptom management. Therefore, providing additional visits and education to caregivers could potentially improve outcomes for both patient and caregiver. In response, we developed the Improving Home hospice Management of End-of-life issues through technology (I-HoME) intervention, a program designed for family caregivers of home hospice patients. This paper describes the intervention, study design, and protocol used to evaluate the intervention. METHODS: The I-HoME study is a pilot randomized controlled trial aimed at reducing patient symptom burden through weekly tele-visits and education videos to benefit the patient's family caregiver. One hundred caregivers will be randomized to hospice care with (n = 50) or without (n = 50) the I-HoME intervention. Primary outcomes include intervention feasibility (e.g., accrual, attrition, use of the intervention) and acceptability (e.g., caregivers' comfort accessing the tele-visits and satisfaction). We will also examine preliminary efficacy using validated patient symptom burden and caregiver outcome measures (i.e., burden, depression, anxiety, satisfaction). CONCLUSION: The trial is evaluating a novel symptom management intervention that supports caregivers of patients receiving home hospice services. The intervention employs a multi-pronged approach that provides needed services at a time when close contact and support is crucial. This research could lead to advances in how care gets delivered in the home hospice setting.

Interventions for Family Caregivers of Patients Receiving Palliative/Hospice Care at Home: A Scoping Review.

There is a need for understanding the breadth of interventions for caregivers of individuals receiving hospice care at home, given the important role caregivers play in caring and the negative outcomes (e.g., depression) associated with their caregiving. Previous reviews were limited in scope to certain types of interventions or patient populations. The objective of this scoping review was to broadly examine the interventions targeting caregivers who provide care to terminally ill patients in home, with the purpose of (1) describing the characteristics of these interventions, (2) discussing key outcomes, limitations, and knowledge gaps, (3) highlighting intervention strengths, and (4) proposing future research directions. We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). Intervention studies that met the inclusion criteria and that were published up until October 2022 were obtained from the following databases: Ovid MEDLINE, Ovid EMBASE, CINAHL (EBSCO), and The Cochrane Library (Wiley). We analyzed 76 studies describing 55 unique interventions that took place in 14 countries. Interventions were largely delivered by nurses (n = 18, 24%), followed by an interdisciplinary team (n = 16, 21%), a health care provider (n = 10, 13%), research staff (n = 10, 13%), social worker (n = 5, 7%), and others (n = 11, 15%). Six interventions (8%) were self-administered. The most measured outcome was caregiver quality of life (n = 20, 26%), followed by anxiety (n = 18, 24%) and burden (n = 15, 20%). Missing data on patient and caregiver characteristics (i.e., age, gender) were common, and less than half of studies (n = 32, 42%) reported race/ethnicity data. Our review highlighted the current state of interventions for caregivers of patients receiving hospice care at home. Many of the interventions were in the early phases of development, raising the need for future studies to look at efficacy, effectiveness, and the ability to implement interventions in real-world settings.

Prevalence Estimates of Arthritis and Activity-Limiting Pain Among Family Caregivers to Older Adults.

BACKGROUND AND OBJECTIVES: Little is known about the prevalence of physical pain among family caregivers to older adults. We used national survey data to assess the relative prevalence of caregivers' arthritis and activity-limiting bothersome pain by caregiver and care-recipient characteristics to identify which caregivers may be at a higher risk for physical pain. RESEARCH DESIGN AND METHODS: We analyzed data collected from 1,930 caregivers who participated in the National Study on Caregiving (2017). We utilized modified Poisson models to estimate adjusted associations of caregiver and care-recipient characteristics with the relative prevalence of arthritis and bothersome pain. RESULTS: Forty percent of caregivers had a lifetime diagnosis of arthritis. Seventy-five percent of caregivers with arthritis reported bothersome pain, nearly 30% of whom endorsed bothersome pain that limited their activities on most or every day of the previous month (i.e., activity-limiting bothersome pain). Regardless of whether they had arthritis, 51% of the sample reported bothersome pain in the previous month, 24% of whom indicated activity-limiting bothersome pain. Caregivers who were older or more highly educated had a higher prevalence of arthritis. Black caregivers had a lower prevalence of arthritis and activity-limiting bothersome pain compared to White caregivers. Caregivers with physical difficulty providing care had a higher prevalence of arthritis and activity-limiting bothersome pain than caregivers without physical difficulty providing care. DISCUSSION AND IMPLICATIONS: Arthritis and activity-limiting bothersome pain are highly prevalent among caregivers. Given increased prevalence of pain among certain caregivers, it may be efficient to target these groups for pain management interventions.

Mental Health Integration and Delivery in the Hospice and Palliative Medicine Setting: A National Survey of Clinicians.

CONTEXT: Mental health comorbidities among individuals with serious illness are prevalent and negatively impact outcomes. Mental healthcare is a core domain of palliative care, but little is known about the experiences of palliative care clinicians delivering such care. OBJECTIVES: This national survey aimed to characterize the frequency with which palliative care providers encounter and manage common psychiatric comorbidities, evaluate the degree of mental health integration in their practice settings, and prioritize strategies to meet the mental health needs of palliative care patients. METHODS: A e-survey distributed to the American Academy of Hospice and Palliative Medicine membership. RESULTS: Seven hundred eight palliative care clinicians (predominantly physicians) were included in the analysis. Mood, anxiety, and neurocognitive disorders were frequently encountered comorbidities that many respondents felt comfortable managing. Respondents felt less comfortable with other psychiatric comorbidities. Eighty percent of respondents noted that patients' mental health status impacted their comfort delivering general palliative care at least some of the time. Mental health screening tool use varied and access to specialist referral or to integrated psychiatrists/psychologists was low. Respondents were unsatisfied with mental health training opportunities. CONCLUSION: Palliative care clinicians play a crucial role in addressing mental health comorbidities, but gaps exist in care. Integrated mental health care models, streamlined referral systems, and increased training opportunities can improve mental healthcare for patients with serious illness.

Geriatric Psychiatrists' Perspectives on Palliative Care: Results From A National Survey.

OBJECTIVES: Older adults with psychiatric illnesses often have medical comorbidities that require symptom management and impact prognosis. Geriatric psychiatrists are uniquely positioned to meet the palliative care needs of such patients. This study aims to characterize palliative care needs of geriatric psychiatry patients and utilization of primary palliative care skills and subspecialty referral among geriatric psychiatrists. METHODS: National, cross-sectional survey study of geriatrics psychiatrists in the United States. RESULTS: Respondents (n = 397) reported high palliative care needs among their patients (46-73% of patients). Respondents reported using all domains of palliative care in their clinical practice with varied comfort. In multivariate modeling, only frequency of skill use predicted comfort with skills. Respondents identified that a third of patients would benefit from referral to specialty palliative care. CONCLUSIONS: Geriatric psychiatrists identify high palliative care needs in their patients. They meet these needs by utilizing primary palliative care skills and when available referral to subspecialty palliative care.

Feasibility, Acceptability, and Preliminary Efficacy of a Positive Affect Skills Intervention for Adults With Fibromyalgia.

Background and Objectives: To examine the feasibility, acceptability, and preliminary efficacy of a positive affect skills intervention for middle-aged and older adults with fibromyalgia syndrome (FMS). Research Design and Methods: Ninety-five participants with FMS aged 50 and older (94% female) were randomized to 1 of 2 conditions: (a) Lessons in Affect Regulation to Keep Stress and Pain UndeR control (LARKSPUR; n = 49) or (b) emotion reporting/control (n = 46). LARKSPUR included 5 weeks of skill training that targeted 8 skills to help foster positive affect, including (a) noticing positive events, (b) savoring positive events, (c) identifying personal strengths, (d) behavioral activation to set and work toward attainable goals, (e) mindfulness, (f) positive reappraisal, (g) gratitude, and (h) acts of kindness. Outcome data were collected via online surveys at baseline, postintervention, and 1-month follow-up. Results: Completion rates (88%) and satisfaction ratings (10-point scale) were high (LARKSPUR: M = 9.14, standard deviation (SD) = 1.49; control: M = 8.59, SD = 1.97). Improvements were greater in LARKSPUR participants compared with control participants on measures of positive affect (Cohen's d = 0.19 [0.15, 0.24]), negative affect (Cohen's d = -0.07 [-0.11, -0.02]), and pain catastrophizing (Cohen's d = -0.14 [-0.23, -0.05]). Improvements in positive affect (Cohen's d = 0.17 [0.13, 0.22]) and negative affect (Cohen's d = -0.11 [-0.15, -0.06]) were maintained at 1-month follow-up. Dose-response analyses indicated that intervention engagement significantly predicted pre-to-post and post-to-follow-up reductions in pain catastrophizing. Discussion and Implications: The current preliminary findings add to existing literature and highlight the specific potential of internet-delivered positive affect skills programs for adults with FMS. Clinical Trial Registration: NCT04869345.

Establishing the Feasibility and Acceptability of a Caregiver Targeted Intervention to Improve Pain Assessment Among Persons With Dementia.

Background and Objectives: Despite its prevalence and impact, pain is underdetected and undermanaged in persons with dementia. Family caregivers are well positioned to detect pain and facilitate its management in their care recipients, but they lack training in symptom recognition and communication. This study reports findings from a pilot trial evaluating the Pain Identification and Communication Toolkit (PICT), a multicomponent intervention that provides training in observational pain assessment and coaching in pain communication techniques. Research Design and Methods: Family caregivers of persons with comorbid pain and moderate-to-advanced dementia were randomly assigned to PICT (n = 19) or a control condition (n = 15). Caregivers in the PICT group participated in four weekly sessions delivered by telephone with a trained interventionist; caregivers in the control group received an information pamphlet about pain and dementia. All participants completed surveys at baseline and 12 weeks. Caregivers in the intervention group also completed semistructured interviews at 12 weeks. Quantitative data were analyzed using descriptive statistics and t tests; qualitative data were analyzed using content analysis. Results: All participants (100%) in the PICT group completed the intervention and most completed the 12-week assessment (94%). PICT randomized caregivers reported that the intervention helped them to feel more confident in their ability to recognize (67%) and communicate about pain symptoms (83%). At 12 weeks, caregivers in the PICT group showed a statistically significant improvement in self-efficacy in pain-related communication. In qualitative interviews, caregivers emphasized the utility of PICT's components, including pain assessment tools, and offered considerations for future enhancements, such as technology-based adaptations and integration within care delivery systems. Discussion and Implications: This pilot trial demonstrates that PICT is feasible to implement, acceptable to caregivers, and has the potential to improve confidence in recognizing and communicating about pain. Results support conducting a fully powered efficacy trial, an important step toward future integration into real-world care delivery. Clinical Trial Registration Number: NCT03853291.

Dietary Inflammatory Potential and the Risk of Serrated and Adenomatous Colorectal Polyps.

Studies of dietary inflammation potential and risks of colorectal cancer precursors are limited, particularly for sessile serrated lesions (SSLs). This study examines the association using the energy-adjusted dietary inflammatory index (E-DIITM), a measure of anti- and/or pro-inflammatory diet, in a large US colonoscopy-based case-control study of 3246 controls, 1530 adenoma cases, 472 hyperplastic polyp cases, and 180 SSL cases. Odds ratios (ORs) and 95% confidence intervals (CIs) were derived from logistic regression models. Analyses were stratified by participant characteristics, and urinary prostaglandin E2 metabolite (PGE-M) and high-sensitivity plasma C-reactive protein (hs-CRP) levels, inflammation biomarkers. Highest E-DII™ intake was associated with significantly increased risks of colorectal adenomas (OR 1.36, 95% CI 1.11, 1.67), and hyperplastic polyps (OR 1.43, 95% CI 1.06, 1.98), compared with participants consuming the lowest E-DII™ quartile. A similar, but non-significant, increased risk was also observed for SSLs (OR 1.41, 95% CI 0.82, 2.41). The positive association was stronger in females (pinteraction <0.001), normal weight individuals (ptrend 0.01), and in individuals with lower inflammatory biomarkers (ptrend 0.02 and 0.01 for PGE-M and hs-CRP, respectively). A high E-DII™ is associated with colorectal polyp risk, therefore promoting an anti-inflammatory diet may aid in preventing colorectal polyps.