Global Assessment of Palliative Care Need: Serious Health-Related Suffering Measurement Methodology.

CONTEXT: Inequities and gaps in palliative care access are a serious impediment to health systems especially in low- and middle-income countries and the accurate measurement of need across health conditions is a critical step to understanding and addressing the issue. Serious Health-related Suffering (SHS) is a novel methodology to measure the palliative care need and was originally developed by The Lancet Commission on Global Access to Palliative Care and Pain Relief. In 2015, the first iteration - SHS 1.0 - was estimated at over 61 million people worldwide experiencing at least 6 billion days of SHS annually as a result of life-limiting and life-threatening conditions. OBJECTIVES: In this paper, an updated methodology - SHS 2.0 - is presented building on the work of the Lancet Commission and detailing calculations, data requirements, limitations, and assumptions. METHODS AND RESULTS: The updates to the original methodology focus on measuring the number of people who die with (decedents) or live with (non-decedents) SHS in a given year to assess the number of people in need of palliative care across health conditions and populations. Detail on the methodology for measuring the number of days of SHS that was pioneered by the Lancet Commission, is also shared, as this second measure is essential for determining the health system responses that are necessary to address palliative care need and must be a priority for future methodological work on SHS. CONCLUSIONS: The methodology encompasses opportunities for applying SHS to future policy making assessment of future research priorities particularly in light of the dearth of data from low- and middle-income countries, and sharing of directions for future work to develop SHS 3.0.

The development of an advanced diploma program for palliative care leaders in Chile.

Context: The majority of people with serious health-related suffering in low- and middle-income countries lack access to palliative care (PC). Increased access to PC education is greatly needed. Objectives: This paper describes the process to adapt an advanced PC training course for a Chilean context. Methods: A joint team of intercultural PC educators from the US and Chile conducted a series of key informant interviews and a target audience survey to iteratively design a PC training course in Chile. Results: Eight key informant interviews identified a strong need for formal PC education pathways, confirmed the five central learning domains, and helped to identify potential course sub-topics. A target audience survey of 59 PC providers from across Chile confirmed a strong desire to participate in such a course. Conclusion: Our team of intercultural PC educators adapted an advanced PC course to the unique context of Chilean providers.

Objective burden, caregiver psychological distress, and patient religion and quality of life are associated with high-intensity burden of care among caregivers of advanced cancer patients in a Latino population.

OBJECTIVES: Family caregivers (FCs) of cancer patients experience burden of care. The aims of this study are to describe the caregiving phenomenon among FCs of advanced cancer patients in a Latino community and to identify caregiver and patient characteristics associated with high-intensity subjective caregiver burden. METHODS: In this cross-sectional study, advanced cancer patient-caregiver dyads assessed at a Palliative Care Unit in Santiago, Chile, enrolled in a longitudinal observational study were included. FCs completed questions to describe the caregiving phenomenon and surveys to assess burden of care, psychological distress, and perception of patients' symptoms; patients completed surveys to assess physical distress and quality of life (QOL). We explored associations between high-intensity subjective caregiver burden with caregiver and patient variables. RESULTS: Two hundred seven dyads were analyzed. FCs were on average 50 years old and 75% female. Thirty-two percent of FCs experienced high-intensity subjective burden of care. Eighty two percent of FCs took care of the patient daily and 31% took care of the patient alone. In univariate analysis, high-intensity caregiver burden was associated with caregiver depression (59% vs. 27%; p < 0.001), anxiety (86% vs. 67%; p = 0.003), caring for the patient alone (45% vs. 24%; p = 0.002), perception of patient symptom distress, patient religion, and worse patient QOL (mean [standard deviation] 58 [33] vs. 68 [27]; p = 0.03). In multivariate analysis, FC depression (OR [95% confidence interval] 3.07 [1.43-6.60]; p = 0.004), anxiety (3.02 [1.19-7.71]; p = 0.021), caring for the patient alone (2.69 [1.26-5.77]; p = 0.011), caregiver perception of patient's fatigue (1.26 [1.01-1.58]; p = 0.04), and patient's religion (3.90 [1.21-12.61]; p = 0.02) were independently associated with caregiver burden. SIGNIFICANCE OF RESULTS: FCs of advanced cancer patients in a Latino community frequently experience high-intensity burden of care and are exposed to measures of objective burden. High-intensity burden is associated with both caregiver and patient factors. Policies should aim to make interventions on patient-caregiver dyads to decrease caregiving burden among Latinos.

Is Acetaminophen Beneficial in Patients With Cancer Pain Who are on Strong Opioids? A Randomized Controlled Trial.

CONTEXT: Pain is common among cancer patients. The evidence recommends using strong opioids in moderate to severe cancer pain. No conclusive evidence supports the effectiveness of adding acetaminophen to patients with cancer pain who are already using this regime. OBJECTIVES: To assess the analgesic efficacy of acetaminophen in hospitalized cancer patients with moderate to severe pain receiving strong opioids. METHODS: In this randomized blinded clinical trial, hospitalized cancer patients with moderate or severe acute pain managed with strong opioids were randomized to acetaminophen or placebo. The primary outcome was pain intensity difference between baseline and 48 hours using the Visual Numeric Rating Scales (VNRS). Secondary outcomes included change in morphine equivalent daily dose (MEDD), and patients' perception of improved pain control. RESULTS: Among 112 randomized patients, 56 patients received placebo, 56 acetaminophen. Mean (standard deviation [SD]) decrease in pain intensity (VNRS) at 48 hours were 2.7 (2.5) and 2.3 (2.3), respectively (95% Confidence Interval (CI) [-0.49; 1.32]; P = 0.37). Mean (SD) change in MEDD was 13.9 (33.0) mg/day and 22.4 (57.7), respectively (95% CI [-9.24; 26.1]; P = 0.35). The proportion of patients perceiving pain control improvement after 48 hours was 82% in the placebo and 80% in the acetaminophen arms (P = 0.81). CONCLUSION: Among patients with cancer pain on strong opioid regime, acetaminophen may not improve pain control, or decrease total opioid use. These results add to the current evidence available suggesting not to use acetaminophen as an adjuvant for advanced cancer patients with moderate to severe cancer pain who are on strong opioids.

Bridging gaps to universal palliative care access in Chile: serious health-related suffering and the cost of expanding the package of care services.

Background: The Lancet Commission on Palliative Care (PC) and Pain Relief quantified the burden of serious health-related suffering (SHS), proposing an Essential Package of PC (EPPC) to narrow the global PC divide. We applied the EPPC framework to analyze PC access in Chile, identify gaps in coverage, and provide recommendations to improve PC access. Methods: Total SHS and population in need of PC was estimated using official 2019 government data. We differentiated between cancer and non-cancer related SHS given guaranteed Chilean PC coverage for cancer. We calculated differences between the Chilean PC package and the Lancet Commission EPPC to estimate the cost of expanding to achieve national coverage of palliative care. Findings: In 2019, nearly 105,000 decedent and non-decedent Chileans experienced SHS with a lower-bound estimate of 12.1 million days and an upper-bound estimate of 42.4 million days of SHS. Each individual experienced between 116 and 520 days of SHS per year. People living with a cancer diagnosis had PC access with financial protection, accounting for almost 42% of patients in need. People with non-cancer diagnoses-about 61 thousand patients-lacked PC coverage. Expanding coverage of the EPPC for all patients in need would cost just above $123 million USD, equivalent to 0.47% of Chilean National Health Expenditure. Interpretation: Achieving universal PC access is urgent and feasible for Chile, classified as a high-income country. Expanding PC services and coverage to the EPPC standard are affordable and critical health system responses to ensuring financial protection for patients with SHS. In Chile, this requires closing large gaps in PC coverage pertaining to patients with non-cancer conditions and treatment of symptoms that go beyond pain. Our research provides an empirical approach for applying the Lancet Commission SHS framework to estimate the cost of achieving national universal PC access anchored in a package of health care services. Funding: This research was partially funded by the Chilean Government through the Fondo Nacional de Ciencia y Tecnología (Fondecyt Regular) grant number 1201721, the U.S. Cancer Pain Relief Committee grant AWD-003806 awarded to the University of Miami and by the University of Miami Institute for Advanced Study of the Americas. We acknowledge NIH/NCI award P30CA008748.

Development and Validation of a Tool to Assess the Structural Quality of Palliative Care Services.

CONTEXT: The current gap in access to palliative care requires the expansion of palliative care services worldwide. There is little information about the structural components required by palliative care services to provide adequate end-of-life care. No specific tools have been developed to assess the structural quality of these services. OBJECTIVE: To develop and validate a tool to assess the structural quality of palliative care services. METHODS: A scoping review of literature was performed to identify structural quality indicators of palliative care services. National experts participated in a two-round Delphi method to reach consensus regarding the importance and measurement feasibility of each proposed indicator. Consensus was reached for each indicator if 60% or more considered them both important and feasible. The selected indicators were tested among Chilean palliative care services to assess instrument psychometric characteristics. RESULTS: Thirty-one indicators were identified. Thirty-five experts participated in a two-round Delphi survey. Twenty-one indicators reached consensus and were included in the structural quality of palliative care services tool (SQPCS-21). This instrument was applied to 201 out of 250 palliative care services in Chile. Achievement for each indicator varied between 8% and 96% (mean 52%). The total SQPCS-21 score varied between 3 and 21 points (mean 11 points). CONCLUSION: The SQPCS-21 tool to assess structural quality of palliative care services, has good content and construct validity and its application provides information about institutions at the individual and aggregated level. This tool can provide guidance to monitor the structural quality of palliative care worldwide.

Optical pulse labeling studies reveal exogenous seeding slows α-synuclein clearance.

The accumulation of α-synuclein (α-syn) in intracellular formations known as Lewy bodies (LBs) is associated with several neurodegenerative diseases including Parkinson's disease and Lewy Body Dementia. There is still limited understanding of how α-syn and LB formation is associated with cellular dysfunction and degeneration in these diseases. To examine the clearance and production dynamics of α-syn we transduced organotypic murine brain slice cultures (BSCs) with recombinant adeno-associated viruses (rAAVs) to express Dendra2-tagged human wild-type (WT) and mutant A53T α-syn, with and without the addition of exogenous α-syn fibrillar seeds and tracked them over several weeks in culture using optical pulse labeling. We found that neurons expressing WT or mutant A53T human α-syn show similar rates of α-syn turnover even when insoluble, phosphorylated Ser129 α-syn has accumulated. Taken together, this data reveals α-syn aggregation and overexpression, pSer129 α-syn, nor the A53T mutation affect α-syn dynamics in this system. Prion-type seeding with exogenous α-syn fibrils significantly slows α-syn turnover, in the absence of toxicity but is associated with the accumulation of anti-p62 immunoreactivity and Thiazin Red positivity. Prion-type induction of α-syn aggregation points towards a potential protein clearance deficit in the presence of fibrillar seeds and the ease of this system to explore precise mechanisms underlying these processes. This system facilitates the exploration of α-syn protein dynamics over long-term culture periods. This platform can further be exploited to provide mechanistic insight on what drives this slowing of α-syn turnover and how therapeutics, other genes or different α-syn mutations may affect α-syn protein dynamics.

Furthering Palliative Care Training in Latin America: Development and Assessment of an Advanced Diploma Course in Palliative Care in Chile.

CONTEXT: The vast majority of people with serious health-related suffering in low- and middle-income countries lack access to palliative care (PC). In Latin America, this shortage is critical, and PC education is greatly needed. OBJECTIVES: This study aims to assess the effects of an advanced PC diploma course in Chile through assessment of participants' satisfaction, knowledge, behavior, and self-efficacy. METHODS: We developed and implemented a 12-day, hybrid-setting, advanced PC diploma course for Latin American clinicians and collected and analyzed pre course, immediate post course, and 6-month post course quantitative and qualitative data on satisfaction, knowledge, behaviors, and self-efficacy. RESULTS: Thirteen Latin American doctors participated in this advanced PC diploma course. Overall knowledge and self-efficacy increased post course. One hundred percent of participants described the course as "very high quality" or "high quality," described the course's teaching methods as "very easy to understand" or "easy to understand," and ranked role-play as a "very useful" tool. CONCLUSION: There is a critical shortage of PC in Latin America where PC education is greatly needed. The lessons learned from this pilot advanced PC diploma course will inform further PC educational development in Latin America. The results of our course assessments show that an advanced diploma course can increase participants' PC knowledge, behaviors, and self-efficacy with a goal of leveraging the Train the Trainer model to increase PC educational leadership and enable training at participants' home institutions.

Il-10 signaling reduces survival in mouse models of synucleinopathy.

Parkinson's disease (PD) and related synucleinopathies are characterized by chronic neuroinflammation leading to the premise that anti-inflammatory therapies could ameliorate synucleinopathy and associated sequelae. To test this idea, we used recombinant adeno-associated viruses (AAV) to express the anti-inflammatory cytokine, Interleukin (Il)-10, in Line M83 transgenic mice that expresses the PD-associated A53T mutant human α-synuclein (αSyn). Contrary to our expectations, we observed that intraspinal Il-10 expression initiated at birth upregulated microgliosis and led to early death in homozygous M83+/+ mice. We further observed that Il-10 preconditioning led to reduced lifespan in the hemizygous M83+/- mice injected with preformed αSyn aggregates in hindlimb muscles. To determine the mechanistic basis for these adverse effects, we took advantage of the I87A variant Il-10 (vIl-10) that has predominantly immunosuppressive properties. Sustained intraspinal expression of vIl-10 in preformed αSyn-aggregate seeded M83+/- mice resulted in earlier death, accelerated αSyn pathology, pronounced microgliosis, and increased apoptosis compared to control mice. AAV-vIl-10 expression robustly induced p62 and neuronal LC3B accumulation in these mice, indicating that Il-10 signaling mediated preconditioning of the neuraxis can potentially exacerbate αSyn accumulation through autophagy dysfunction in the neurons. Together, our data demonstrate unexpected adverse effects of both Il-10 and its immunosuppressive variant, vIl-10, in a mouse model of PD, highlighting the pleiotropic functions of immune mediators and their complex role in non-cell autonomous signaling in neurodegenerative proteinopathies.

Photodynamic studies reveal rapid formation and appreciable turnover of tau inclusions.

Accumulation of the tau protein in fibrillar intracellular aggregates is a defining feature of multiple neurodegenerative diseases collectively referred to as tauopathies. Despite intensive study of tau, there is limited information on the formation and clearance dynamics of tau inclusions. Using rAAV vectors to mediate expression of Dendra2-tagged human wild-type, P301L and pro-aggregant P301L/S320F tau proteins, with and without the addition of exogenous tau fibrillar seeds, we evaluated tau inclusion dynamics in organotypic brain slice culture (BSC) models using long-term optical pulse labeling methodology. Our studies reveal that tau inclusions typically form in 12-96 h in tauopathy BSC models. Unexpectedly, we demonstrate appreciable turnover of tau within inclusions with an average half-life of ~ 1 week when inclusions are newly formed. When BSCs with inclusions are aged in culture for extended periods, tau inclusions continue to turnover, but their half-lives increase to ~ 2 weeks and ~ 3 weeks after 1 and 2 months in culture, respectively. Individual tau inclusions can be long-lived structures that can persist for months in these BSC models and for even longer in the human brain. However, our data indicate that tau inclusions, are not 'tombstones', but dynamic structures with appreciable turnover. Understanding the cellular processes mediating this inclusion turnover may lead to new therapeutic strategies that could reverse pathological tau inclusion formation.

Anti-tau scFvs Targeted to the Cytoplasm or Secretory Pathway Variably Modify Pathology and Neurodegenerative Phenotypes.

Immunotherapies designed to treat neurodegenerative tauopathies that primarily engage extracellular tau may have limited efficacy as tau is primarily intracellular. We generated tau-targeting single-chain variable fragments (scFvs) and intrabodies (iBs) from the phosphorylated tau-specific antibodies CP13 and PHF1 and the pan-tau antibody Tau5. Recombinant adeno-associated virus (rAAV) was utilized to express these antibody fragments in homozygous JNPL3 P301L tau mice. Two iBs (CP13i, PHF1i) and one scFv (PHF1s) abrogated tau pathology and delayed time to severe hindlimb paralysis. In a second tauopathy model (rTg4510), CP13i and PHF1i reduced tau pathology, but cognate scFvs did not. These data demonstrate that (1) disease-modifying efficacy does not require antibody effector functions, (2) the intracellular targeting of tau with phosphorylated tau-specific iBs is more effective than extracellular targeting with the scFvs, and (3) robust effects on tau pathology before neurodegeneration only resulted in modest disease modification as assessed by delay of severe motor phenotype.

Aß40 displays amyloidogenic properties in the non-transgenic mouse brain but does not exacerbate Aß42 toxicity in Drosophila.

BACKGROUND: Self-assembly of the amyloid-ß (Aß) peptide into aggregates, from small oligomers to amyloid fibrils, is fundamentally linked with Alzheimer's disease (AD). However, it is clear that not all forms of Aß are equally harmful and that linking a specific aggregate to toxicity also depends on the assays and model systems used (Haass et al., J Biol. Chem 269:17741-17748, 1994; Borchelt et al., Neuron 17:1005-1013, 1996). Though a central postulate of the amyloid cascade hypothesis, there remain many gaps in our understanding regarding the links between Aß deposition and neurodegeneration. METHODS: In this study, we examined familial mutations of Aß that increase aggregation and oligomerization, E22G and ΔE22, and induce cerebral amyloid angiopathy, E22Q and D23N. We also investigated synthetic mutations that stabilize dimerization, S26C, and a phospho-mimetic, S8E, and non-phospho-mimetic, S8A. To that end, we utilized BRI2-Aß fusion technology and rAAV2/1-based somatic brain transgenesis in mice to selectively express individual mutant Aß species in vivo. In parallel, we generated PhiC31-based transgenic Drosophila melanogaster expressing wild-type (WT) and Aß40 and Aß42 mutants, fused to the Argos signal peptide to assess the extent of Aß42-induced toxicity as well as to interrogate the combined effect of different Aß40 and Aß42 species. RESULTS: When expressed in the mouse brain for 6 months, Aß42 E22G, Aß42 E22Q/D23N, and Aß42WT formed amyloid aggregates consisting of some diffuse material as well as cored plaques, whereas other mutants formed predominantly diffuse amyloid deposits. Moreover, while Aß40WT showed no distinctive phenotype, Aß40 E22G and E22Q/D23N formed unique aggregates that accumulated in mouse brains. This is the first evidence that mutant Aß40 overexpression leads to deposition under certain conditions. Interestingly, we found that mutant Aß42 E22G, E22Q, and S26C, but not Aß40, were toxic to the eye of Drosophila. In contrast, flies expressing a copy of Aß40 (WT or mutants), in addition to Aß42WT, showed improved phenotypes, suggesting possible protective qualities for Aß40. CONCLUSIONS: These studies suggest that while some Aß40 mutants form unique amyloid aggregates in mouse brains, they do not exacerbate Aß42 toxicity in Drosophila, which highlights the significance of using different systems for a better understanding of AD pathogenicity and more accurate screening for new potential therapies.

The central role of provider training in implementing resource-stratified guidelines for palliative care in low-income and middle-income countries: Lessons from the Jamaica Cancer Care and Research Institute in the Caribbean and Universidad Católica in Latin America.

Individuals in low-income and middle-income countries (LMICs) account for approximately two-thirds of cancer deaths worldwide, and the vast majority of these deaths occur without access to essential palliative care (PC). Although resource-stratified guidelines are being developed that take into account the actual resources available within a given country, and several components of PC are available within health care systems, PC will never improve without a trained workforce. The design and implementation of PC provider training programs is the lynchpin for ensuring that all seriously ill patients have access to quality PC services. Building on the Breast Health Global Initiative's resource-stratified recommendations for provider education in PC, the authors report on efforts by the Jamaica Cancer Care and Research Institute in the Caribbean and the Universidad Católica in successfully developing and implementing PC training programs in the Caribbean and Latin America, respectively. Key aspects of this approach include: 1) fostering strategic academic partnerships to bring additional expertise and support to the effort; 2) careful adaptation of the curriculum to the local context and culture; 3) early identification of feasible metrics to facilitate program evaluation and future outcomes research; and 4) designing PC training programs to meet local health system needs.

Utilizing minimally purified secreted rAAV for rapid and cost-effective manipulation of gene expression in the CNS.

BACKGROUND: Recombinant adeno-associated virus (rAAV) is widely used in the neuroscience field to manipulate gene expression in the nervous system. However, a limitation to the use of rAAV vectors is the time and expense needed to produce them. To overcome this limitation, we evaluated whether unpurified rAAV vectors secreted into the media following scalable PEI transfection of HEK293T cells can be used in lieu of purified rAAV. METHODS: We packaged rAAV2-EGFP vectors in 30 different wild-type and mutant capsids and subsequently collected the media containing secreted rAAV. Genomic titers of each rAAV vector were assessed and the ability of each unpurified virus to transduce primary mixed neuroglial cultures (PNGCs), organotypic brain slice cultures (BSCs) and the mouse brain was evaluated. RESULTS: There was ~ 40-fold wide variance in the average genomic titers of the rAAV2-EGFP vector packaged in the 30 different capsids, ranging from a low ~ 4.7 × 1010 vector genomes (vg)/mL for rAAV2/5-EGFP to a high of ~ 2.0 × 1012 vg/mL for a capsid mutant of rAAV2/8-EGFP. In PNGC studies, we observed a wide range of transduction efficiency among the 30 capsids evaluated, with the rAAV2/6-EGFP vector demonstrating the highest overall transduction efficiency. In BSC studies, we observed robust transduction by wild-type capsid vectors rAAV2/6, 2/8 and 2/9, and by capsid mutants of rAAV2/1, 2/6, and 2/8. In the in vivo somatic brain transgenesis (SBT) studies, we found that intra-cerebroventricular injection of media containing unpurified rAAV2-EGFP vectors packaged with select mutant capsids resulted in abundant EGFP positive neurons and astrocytes in the hippocampus and forebrain of non-transgenic mice. We demonstrate that unpurified rAAV can express transgenes at equivalent levels to lysate-purified rAAV both in vitro and in vivo. We also show that unpurified rAAV is sufficient to drive tau pathology in BSC and neuroinflammation in vivo, recapitulating previous studies using purified rAAV. CONCLUSIONS: Unpurified rAAV vectors secreted into the media can efficiently transduce brain cells in vitro and in vivo, providing a cost-effective way to manipulate gene expression. The use of unpurified virus will greatly reduce costs of exploratory studies and further increase the utility of rAAV vectors for standard laboratory use.

Intracerebral Expression of AAV-APOE4 Is Not Sufficient to Alter Tau Burden in Two Distinct Models of Tauopathy.

Apolipoprotein E4 (APOE4) is the major genetic risk factor for sporadic Alzheimer's disease (AD), which is characterized by amyloid ß (Aß) plaques and tau tangles. Though the role of APOE4 in Aß pathogenesis has been mechanistically defined in rodent models, much less is known regarding the relationship of APOE4 to tau pathogenesis. Recent studies have indicated a possible correlation between APOE isoform-dependent alterations in tau pathology and neurodegeneration. To explore whether neuronal expression of APOE4 triggers tauopathy, here we delivered adeno-associated viruses (AAV) expressing human APOE4 in two different models of tauopathy-rTg4510 and PS19 lines. Intracerebroventricular delivery of AAV-APOE4 in neonatal rTg4510 and PS19 mice resulted in increased APOE4 protein in neurons but did not result in altered phosphorylated tau burden, pretangle tau pathology, or silver-positive tangle pathology. Biochemical analysis of synaptic proteins did not reveal substantial alterations. Our results indicate that over-expression of APOE4 in neurons, using an AAV-mediated approache, is not sufficient to accelerate or otherwise alter the inherent tau pathology that occurs in mice overexpressing mutant human tau.

Intra- and extracellular ß-amyloid overexpression via adeno-associated virus-mediated gene transfer impairs memory and synaptic plasticity in the hippocampus.

Alzheimer's disease (AD), the most common age-related neurodegenerative disorder, is currently conceptualized as a disease of synaptic failure. Synaptic impairments are robust within the AD brain and better correlate with dementia severity when compared with other pathological features of the disease. Nevertheless, the series of events that promote synaptic failure still remain under debate, as potential triggers such as ß-amyloid (Aß) can vary in size, configuration and cellular location, challenging data interpretation in causation studies. Here we present data obtained using adeno-associated viral (AAV) constructs that drive the expression of oligomeric Aß either intra or extracellularly. We observed that expression of Aß in both cellular compartments affect learning and memory, reduce the number of synapses and the expression of synaptic-related proteins, and disrupt chemical long-term potentiation (cLTP). Together, these findings indicate that during the progression AD the early accumulation of Aß inside neurons is sufficient to promote morphological and functional cellular toxicity, a phenomenon that can be exacerbated by the buildup of Aß in the brain parenchyma. Moreover, our AAV constructs represent a valuable tool in the investigation of the pathological properties of Aß oligomers both in vivo and in vitro.

An anti-CRF antibody suppresses the HPA axis and reverses stress-induced phenotypes.

Hypothalamic-pituitary-adrenal (HPA) axis dysfunction contributes to numerous human diseases and disorders. We developed a high-affinity monoclonal antibody, CTRND05, targeting corticotropin-releasing factor (CRF). In mice, CTRND05 blocks stress-induced corticosterone increases, counteracts effects of chronic variable stress, and induces other phenotypes consistent with suppression of the HPA axis. CTRND05 induces skeletal muscle hypertrophy and increases lean body mass, effects not previously reported with small-molecule HPA-targeting pharmacologic agents. Multiorgan transcriptomics demonstrates broad HPA axis target engagement through altering levels of known HPA-responsive transcripts such as Fkbp5 and Myostatin and reveals novel HPA-responsive pathways such as the Apelin-Apelin receptor system. These studies demonstrate the therapeutic potential of CTRND05 as a suppressor of the HPA axis and serve as an exemplar of a potentially broader approach to target neuropeptides with immunotherapies, as both pharmacologic tools and novel therapeutics.

rAAV-based brain slice culture models of Alzheimer's and Parkinson's disease inclusion pathologies.

It has been challenging to produce ex vivo models of the inclusion pathologies that are hallmark pathologies of many neurodegenerative diseases. Using three-dimensional mouse brain slice cultures (BSCs), we have developed a paradigm that rapidly and robustly recapitulates mature neurofibrillary inclusion and Lewy body formation found in Alzheimer's and Parkinson's disease, respectively. This was achieved by transducing the BSCs with recombinant adeno-associated viruses (rAAVs) that express α-synuclein or variants of tau. Notably, the tauopathy BSC model enables screening of small molecule therapeutics and tracking of neurodegeneration. More generally, the rAAV BSC "toolkit" enables efficient transduction and transgene expression from neurons, microglia, astrocytes, and oligodendrocytes, alone or in combination, with transgene expression lasting for many months. These rAAV-based BSC models provide a cost-effective and facile alternative to in vivo studies, and in the future can become a widely adopted methodology to explore physiological and pathological mechanisms related to brain function and dysfunction.

Spiritual Pain Is Associated with Decreased Quality of Life in Advanced Cancer Patients in Palliative Care: An Exploratory Study.

Background: Improving quality of life (QOL) is important in cancer palliative care (PC) patients. "Spiritual pain" (SP) is common in this population, but it is unknown how it affects QOL. Objective: To study the associations between SP and QOL in cancer patients in PC. Design: Cross-sectional. Settings/Subjects: Cancer patients assessed at a PC clinic in Puente Alto, Chile, were enrolled in a longitudinal study to characterize patients' end of life. Inclusion criteria included age ≥18, a primary caregiver, not having delirium, and a Karnofsky performance status (KPS) ≤80. Measurements: After consenting patients completed baseline surveys that included demographics, single-item questions to assess SP (0-10), financial distress, spirituality-related variables and questionnaires to assess QOL (0-100), and physical (Global distress score-physical) and psychological distress (Hospital Anxiety and Depression Scale), baseline data analyses to explore associations between SP and QOL were adjusted for potential confounders. Results: Two hundred and eight patients were enrolled: mean age was 64, 50% were female, and 67% had SP. In univariate analysis, SP was significantly associated with lower QOL (coefficient [95% confidence interval]: -1.88 [-2.93 to -0.84], p < 0.001). Lower QOL was also associated with being younger, lower KPS, higher physical distress, having anxiety or depression, and decreased religiosity and religious coping. In the multivariate analysis, QOL remained independently associated with SP (-1.25 [-2.35; to -0.15], p < 0.026), religious coping (11.74 [1.09 to 22.38], p < 0.031), and physical distress (-0.52 [-0.89 to -0.16], p < 0.005). Conclusions: SP is associated with QOL in cancer patients in PC. SP should be regularly assessed to plan for interventions that could impact QOL. More research is needed.