Learning to Trust Yourself: Decision-Making Skills Among Parents of Children With Medical Complexity.

CONTEXT: Children with medical complexity have substantial medical needs and their caregivers must make many challenging decisions about their care. Caregivers often become more involved in decisions over time, but it is unclear what skills they develop that facilitate this engagement. OBJECTIVES: To describe the skills that caregivers developed as they gained experience making medical decisions. METHODS: Eligible caregivers had a child who met referral criteria for their centre's Complex Care program for >1 year, were adults responsible for their child's medical decisions, and spoke English or a language with an available interpreter. We followed a semistructured interview guide to ask caregivers to describe and reflect on two challenging medical decisions that they made for their child-one early and one recent. Guided by interpretive description, we identified and refined themes in an iterative process. RESULTS: We conducted 15 interviews with 16 parents (14 [88%] women, two [13%] men) of a child with medical complexity (aged 1-17 years). Parents described 1) becoming more adept at managing decisional information, 2) recognizing the influence of the decision's context, 3) building stronger relationships with providers, and 4) becoming more effective at guiding their child's care as a decision-maker. As parents built these skills, they developed a greater sense of agency and confidence as decision-makers. CONCLUSION: Parents of children with medical complexity change how they approach decision making over time as they acquire relevant skills. These findings can inform the development of interventions to support skill-building among new caregivers.

A straightforward cell culture insert model to incorporate biochemical and biophysical stromal properties into transplacental transport studies.

Introduction: The placental extracellular matrix (ECM) dynamically remodels over pregnancy and in disease. How these changes impact placental barrier function is poorly understood as there are limited in vitro models of the placenta with a modifiable stromal compartment to mechanistically investigate these extracellular factors. We developed a straightforward method to incorporate uniform hydrogels into standard cell culture inserts for transplacental transport studies. Methods: Uniform polyacrylamide (PAA) gels were polymerized within cell culture inserts by (re)using the insert packaging to create a closed, controllable environmental chamber. PAA pre-polymer solution was added dropwise via a syringe to the cell culture insert and the atmosphere was purged with an inert gas. Transport and cell culture studies were conducted to validate the model. Results: We successfully incorporated and ECM functionalized uniform PAA gels to cell culture inserts enable cell adhesion and monolayer formation. Imaging and analyte transport studies validated gel formation and expected mass transport results and successful cell studies confirmed cell viability, monolayer formation, and that the model could be used transplacental transport studies. Detailed methods and validation protocols are included. Discussion: It is well appreciated that ECM biophysical and biochemical properties impact cell phenotype and cell signaling in many tissues including the placenta. The incorporation of a PAA gel within a cell culture insert enables independent study of placental ECM biophysical and biochemical properties in the context of transplacental transport. These straightforward and low-cost methods to build three dimensional cellular models are readily adoptable by the wider scientific community.

Documenting the Full Value of Vaccination: A Systematic Review of Value Frameworks.

OBJECTIVES: Economic evaluations of vaccination may not fully account for nonhealth patient impacts on families, communities, and society (ie, broader value elements). Omission of broader value elements may reflect a lack of established measurement methodology, lack of agreement over which value elements to include in economic evaluations, and a lack of consensus on whether the value elements included should vary by vaccination type or condition. We conducted a systematic review of value frameworks to identify broader value elements and measurement guidance that may be useful for capturing the full value of vaccination. METHODS: We searched Ovid MEDLINE, PubMed, Embase, and the gray literature to identify value frameworks for all health interventions, and we extracted information on each framework's context, value elements, and any available guidance on how these elements should be measured. We used descriptive statistics to analyze and compare the prevalence of broader value elements in vaccination value frameworks and other healthcare-related value frameworks. RESULTS: Our search identified 62 value frameworks that met inclusion criteria, 9 of which were vaccination specific. Although vaccination frameworks included several broader value elements, such as reduced transmissibility and public health benefits, the elements were represented inconsistently across the frameworks. Vaccination frameworks omitted several value elements included in nonvaccination-specific frameworks, including dosing and administration complexity and affordability. In addition, guidance for measuring broader value elements was underdeveloped. CONCLUSIONS: Future efforts should further evaluate inclusion of broader value elements in economic evaluations of vaccination and develop standards for their subsequent measurement.

Use of Latent Class Analysis to Predict Intensive Care Unit Admission and Mortality in Children with a Major Congenital Anomaly.

OBJECTIVE: To define major congenital anomaly (CA) subgroups and assess outcome variability based on defined subgroups. STUDY DESIGN: This population-based cohort study used registries in Denmark for children born with a major CA between January 1997 and December 2016, with follow-up until December 2018. We performed a latent class analysis (LCA) using child and family clinical and sociodemographic characteristics present at birth, incorporating additional variables occurring until age of 24 months. Cox proportional hazards regression models estimated hazard ratios (HRs) of pediatric mortality and intensive care unit (ICU) admissions for identified LCA classes. RESULTS: The study included 27 192 children born with a major CA. Twelve variables led to a 4-class solution (entropy = 0.74): (1) children born with higher income and fewer comorbidities (55.4%), (2) children born to young mothers with lower income (24.8%), (3) children born prematurely (10.0%), and (4) children with multiorgan involvement and developmental disability (9.8%). Compared with those in Class 1, mortality and ICU admissions were highest in Class 4 (HR = 8.9, 95% CI = 6.4-12.6 and HR = 4.1, 95% CI = 3.6-4.7, respectively). More modest increases were observed among the other classes for mortality and ICU admissions (Class 2: HR = 1.7, 95% CI = 1.1-2.5 and HR = 1.3, 95% CI = 1.1-1.4, respectively; Class 3: HR = 2.5, 95% CI = 1.5-4.2 and HR = 1.5, 95% CI = 1.3-1.9, respectively). CONCLUSIONS: Children with a major CA can be categorized into meaningful subgroups with good discriminative ability. These groupings may be useful for risk-stratification in outcome studies.

Recurrent Intensive Care Episodes and Mortality Among Children With Severe Neurologic Impairment.

Importance: Children requiring care in a pediatric intensive care unit (PICU) are known to have increased risk of subsequent mortality. Children with severe neurologic impairment (SNI)-who carry neurologic or genetic diagnoses with functional impairments and medical complexity-are frequently admitted to PICUs. Although recurrent PICU critical illness episodes (PICU-CIEs) are assumed to indicate a poor prognosis, the association between recurrent PICU-CIEs and mortality in this patient population is poorly understood. Objective: To assess the association between number of recent PICU-CIEs and survival among children with severe neurologic impairment. Design, Setting, and Participants: This population-based retrospective cohort study used health administrative data from April 1, 2002, to March 31, 2020, on 4774 children born between 2002 and 2019 with an SNI diagnosis code in an Ontario, Canada, hospital record before 16 years of age and a first PICU-CIE from 2002 to 2019. Data were analyzed from November 2021 to June 2023. Exposure: Pediatric intensive care unit critical illness episodes (excluding brief postoperative PICU admissions). Main Outcome and Measures: One-year survival conditioned on the number and severity (length of stay >15 days or use of invasive mechanical ventilation) of PICU-CIEs in the preceding year. Results: In Ontario, 4774 children with SNI (mean [SD] age, 2.1 [3.6] months; 2636 [55.2%] <1 year of age; 2613 boys [54.7%]) were discharged alive between 2002 and 2019 after their first PICU-CIE. Ten-year survival after the initial episode was 81% (95% CI, 79%-82%) for children younger than 1 year of age and 84% (95% CI, 82%-86%) for children 1 year of age or older; the age-stratified curves converged by 15 years after the initial episode at 79% survival (95% CI, 78%-81% for children <1 year and 95% CI, 75%-84% for children ≥1 year). Adjusted for age category and demographic factors, the presence of nonneurologic complex chronic conditions (adjusted hazard ratio [AHR], 1.70 [95% CI, 1.43-2.02]) and medical technology assistance (AHR, 2.32 [95% CI, 1.92-2.81]) were associated with increased mortality. Conditional 1-year mortality was less than 20% regardless of number or severity of recent PICU-CIEs. Among children with high-risk PICU-CIEs, 1-year conditional survival decreased from 90% (95% CI, 89%-91%) after the first PICU-CIE to 81% (95% CI, 77%-86%) after the fourth PICU-CIE. Conclusions and Relevance: This cohort study of children with SNI demonstrated a modest dose-dependent association between PICU-CIEs and short-term mortality. These data did not support the conventional wisdom that recurrent PICU admissions are associated with subsequent high mortality risk.

Being effective and supervising for thesis success in nursing coursework master degrees: A qualitative descriptive study.

BACKGROUND: Master's degrees for nurses have various foci including clinical practice, leadership and education, with some programs consisting of coursework, while others offer hybrid study that combines coursework and research. Multiple formats are associated with offering the research component. The research component is often termed the minor thesis. Limited knowledge exists regarding the supervision of the research component. AIM(S): To capture the practices and perspectives of experienced nurse academics regarding effective supervision of the masters-level minor thesis in nursing coursework master degrees. THE STUDY: Design Qualitative descriptive. Methods Semi-structured interviews with 28 experienced nurse academics recruited from 15 Australian and three New Zealand universities linked to the Council of Deans in Australia and New Zealand. Inclusion criteria were having experience of supervising masters-level minor theses and higher degrees. Interviews were face-to-face using the internet platform Zoom©. Thematic analysis was undertaken. Findings The analysis revealed three themes and associated sub-themes: (i) establishing the framework (setting up the student's research; building the student-supervisor relationship; setting clear expectations), (ii) supervisors' knowledge and actions: driving for success (supervisors' knowledge for a satisfactory and timely outcome; supervisors' actions to develop students' capabilities; supervisors' actions of drawing in other expertise) and (iii) supervisor savviness: Attending to the finer points of supervision for student success (using your attributes as a supervisor; being savvy to teach and engage students; creatively seeking a smooth process for student success). CONCLUSION: The findings highlight three themes crucial to effective supervision of masters-level minor theses in nursing: Establishing a strong research framework, emphasizing supervisors' knowledge and proactive engagement and attending to nuanced aspects of supervision for student success. These insights contribute to deeper understanding of the multifaceted nature of supervising minor theses, providing a valuable foundation for refining supervisory practices and enhancing the educational experience within coursework nursing master degree programs. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: The findings highlight the supervisors' pivotal practices in guiding students through the minor thesis. These insights will be useful for inexperienced and experienced supervisors and for degree program directors. The findings should inform supervision training and supervision practices in the future. IMPACT: The study addressed a gap in knowledge about what experienced supervisors do to be effective and achieve success in the research component in a hybrid master degree for registered nurses. Effective supervision for student success in the minor thesis requires supervisors to establish and maintain a project and supervisory framework with appropriate boundaries and that is attuned to both the supervisor and student capabilities and preferences. Supervisors have an active role in directing the focus, scale and scope of a minor theses in keeping with university requirements and the short timeframe. Supervisors pay attention to the development of multiple student literacies (research, academic, professional, feedback and cultural) as core aspects of the masters research journey. Supervisors use their savviness and customize supervision to student contexts and capabilities as they guide development to achieve student success. The research findings have implications for targeted supervisor training and enhancing educational strategies for research supervision of minor thesis students. REPORTING METHOD: COREQ reporting was adhered to as the relevant EQUATOR guideline. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

A randomized controlled trial of oral antipyretic treatment to reduce overheating during exercise in adults with multiple sclerosis.

BACKGROUND: Some people with multiple sclerosis (pwMS) avoid exercise due to overheating. Evidence from a variety of cooling treatments shows benefits for pwMS. OBJECTIVE: Conduct a randomized controlled trial of antipyretic treatment before exercise in pwMS. METHODS: Adults over age 18 diagnosed with relapsing-remitting MS reporting heat sensitivity during exercise were randomly assigned to one of six sequences counterbalancing aspirin, acetaminophen, placebo. At each of three study visits separated by ≥ one week, participants received 650-millograms of aspirin, acetaminophen, or placebo before completing a maximal exercise test. Primary outcomes were body temperature change and total time-to-exhaustion (TTE), secondary outcomes were physiological and patient-reported outcomes (PROs). RESULTS: Sixty participants were enrolled and assigned to treatment sequence; 37 completed ≥ one study visit. After controlling for order effects, we found that body temperature increase was reduced after aspirin (+ 0.006 ± 0.32 degrees Fahrenheit, p < 0.001) and after acetaminophen (+ 0.31 ± 0.35; p = 0.004) compared to placebo (+ 0.68 ± 0.35). TTE after aspirin (331.6 ± 76.6 s) and acetaminophen (578.2 ± 82.1) did not differ significantly from placebo (551.0 ± 78.4; p's > 0.05). Aspirin benefited all secondary outcomes compared to placebo (all p's < 0.001); acetaminophen showed broadly consistent benefits. CONCLUSION: These results support antipyretic treatment as effective for reducing overheating during exercise in pwMS and failed to support antipyretics for increasing TTE in the context of a maximal exercise test. Benefits were shown for physiological markers of exercise productivity and PROs of fatigue, pain, and perceived exertion.

Systematic development of ionizable lipid nanoparticles for placental mRNA delivery using a design of experiments approach.

Ionizable lipid nanoparticles (LNPs) have gained attention as mRNA delivery platforms for vaccination against COVID-19 and for protein replacement therapies. LNPs enhance mRNA stability, circulation time, cellular uptake, and preferential delivery to specific tissues compared to mRNA with no carrier platform. However, LNPs are only in the beginning stages of development for safe and effective mRNA delivery to the placenta to treat placental dysfunction. Here, we develop LNPs that enable high levels of mRNA delivery to trophoblasts in vitro and to the placenta in vivo with no toxicity. We conducted a Design of Experiments to explore how LNP composition, including the type and molar ratio of each lipid component, drives trophoblast and placental delivery. Our data revealed that utilizing C12-200 as the ionizable lipid and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) as the phospholipid in the LNP design yields high transfection efficiency in vitro. Analysis of lipid molar composition as a design parameter in LNPs displayed a strong correlation between apparent pKa and poly (ethylene) glycol (PEG) content, as a reduction in PEG molar amount increases apparent pKa. Further, we present one LNP platform that exhibits the highest delivery of placental growth factor mRNA to the placenta in pregnant mice, resulting in synthesis and secretion of a potentially therapeutic protein. Lastly, our high-performing LNPs have no toxicity to both the pregnant mice and fetuses. Our results demonstrate the feasibility of LNPs as a platform for mRNA delivery to the placenta, and our top LNP formulations may provide a therapeutic platform to treat diseases that originate from placental dysfunction during pregnancy.

Effects of landscape simplicity on crop yield: A reanalysis of a global database.

Ecological theory on diversity suggests that agriculture requires sufficient biodiversity, ecological function, and critical ecosystem services to remain sustainable and resilient. As such, research related to the effect of ecosystem services and diversity on crop yields has increased significantly in the past decade. One such study by Dainese and colleagues that presented a global synthesis of a compiled database of 1,475 crop experiments related to pollination and pest control ecosystem services and crop yields quickly garnered attention in the literature with more than 540 citations since its publication in 2019. Given the strong influence of this study on the research on diversity and agricultural production, we conduct a reanalysis on the publicly available dataset from the global synthesis study to test the robustness of findings to modeling approach and assumptions. In our reanalysis we apply ordinary least squares regression methods rather than Bayesian path analysis to the same data to examine the robustness of observed field-scale landscape diversity-ecosystem services-crop yield relationships. The result of our reanalysis supports the findings of Dainese and colleagues, illustrating the robustness of findings that suggest that increasing landscape simplicity is associated with lower rates of pollination and pest control ecosystem service provisioning and lower crop yields. However, our analyses also suggest that provisioning of pollination and pest control services account for only a small fraction of the total effect of landscape simplicity on crop yields. Furthermore, we find that management and soil health may mediate the effects of landscape simplicity on ecosystem services and crop yields. While our results complement previous findings for landscape simplicity and ecosystem services, they also indicate that above and below ground ecosystem services are not mutually exclusive but concurrently contribute to support crop production in agriculture.

Severe Respiratory Disease Among Children With and Without Medical Complexity During the COVID-19 Pandemic.

Importance: Severe respiratory disease declined during the COVID-19 pandemic, partially due to decreased circulation of respiratory pathogens. However, the outcomes of children with higher risk have not been described using population-based data. Objective: To compare respiratory-related hospitalizations, intensive care unit (ICU) admissions, and mortality during the pandemic vs prepandemic, among children with medical complexity (CMC) and without medical complexity (non-CMC). Design, Setting, and Participants: This population-based repeated cross-sectional study used Canadian health administrative data of children aged younger than 18 years in community and pediatric hospitals during a pandemic period (April 1, 2020, to February 28, 2022) compared with a 3-year prepandemic period (April 1, 2017, to March 31, 2020). The pandemic period was analyzed separately for year 1 (April 1, 2020, to March 31, 2021) and year 2 (April 1, 2021, to February 28, 2022). Statistical analysis was performed from October 2022 to April 2023. Main Outcomes and Measures: Respiratory-related hospitalizations, ICU admissions, and mortality before and during the pandemic among CMC and non-CMC. Results: A total of 139 078 respiratory hospitalizations (29 461 respiratory hospitalizations for CMC and 109 617 for non-CMC) occurred during the study period. Among CMC, there were fewer respiratory hospitalizations in both 2020 (rate ratio [RR], 0.44 [95% CI, 0.42-0.46]) and 2021 (RR, 0.55 [95% CI, 0.51-0.62]) compared with the prepandemic period. Among non-CMC, there was an even larger relative reduction in respiratory hospitalizations in 2020 (RR, 0.18 [95% CI, 0.17-0.19]) and a similar reduction in 2021 (RR, 0.55 [95% CI, 0.54-0.56]), compared with the prepandemic period. Reductions in ICU admissions for respiratory illness followed a similar pattern for CMC (2020: RR, 0.56 [95% CI, 0.53-0.59]; 2021: RR, 0.66 [95% CI, 0.63-0.70]) and non-CMC (2020: RR, 0.22 [95% CI, 0.20-0.24]; RR, 0.65 [95% CI, 0.61-0.69]). In-hospital mortality for these conditions decreased among CMC in both 2020 (RR, 0.63 [95% CI, 0.51-0.77]) and 2021 (RR, 0.72 [95% CI, 0.59-0.87]). Conclusions and Relevance: This cross-sectional study found a substantial decrease in severe respiratory disease resulting in hospitalizations, ICU admissions, and mortality during the first 2 years of the pandemic compared with the 3 prepandemic years. These findings suggest that future evaluations of the effect of public health interventions aimed at reducing circulating respiratory pathogens during nonpandemic periods of increased respiratory illness may be warranted.

Unintended consequences of disseminating behavioral health evidence to policymakers: Results from a survey-based experiment.

Background: Communication research demonstrates that messages often have unintended consequences, but this work has received limited attention in implementation science. This dissemination experiment sought to determine whether state-tailored policy briefs about the behavioral health consequences of adverse childhood experiences (ACEs), compared to national policy briefs on the topic, increased state legislators'/staffers' perceptions of the policy brief relevance and parental blame for the consequences of ACEs, and whether effects differed between Democrats and Republicans. Method: A preregistered, web-based survey experiment with U.S. state legislators/staffers was conducted in 2021 (n = 133). Respondents were randomized to view a policy brief about the behavioral health consequences of ACEs that included state-tailored data (intervention condition) or national data (control condition) and then answered survey questions. Dependent variables were perceived policy brief relevance and parental blame for the consequences of ACEs. Results: The mean policy brief relevance score was 4.1% higher in the intervention than in the control condition (p = .24), but the mean parental blame score was 16.5% higher (p = .02). When outcomes were dichotomized, 61.2% of respondents in the intervention condition rated parents as "very much to blame" for the consequences of ACEs compared to 37.1% in the control condition (p = .01). When the sample was stratified by political affiliation, the effect of the state-tailored policy brief on parental blame was larger in magnitude among Democrats and not significant among Republicans. The intervention policy brief increased the mean parental blame score by 22.8% among Democrats relative to the control policy brief (p = .007) and doubled the proportion rating parents as "very much to blame" (52.2% vs. 26.1%, p = .03). Conclusions: Despite limited statistical power, state-tailored policy briefs significantly increased state legislators'/staffers' perceptions of parental blame for the behavioral health consequences of ACEs, relative to a policy brief with national data. Unintended messaging effects warrant greater attention in dissemination research and practice.

Prior studies have tested the effects of dissemination strategies on policymakers' engagement with research evidence. However, little research has assessed the potential unintended consequences of disseminating evidence to policymakers. This knowledge gap is important because a large body of communication research has found that messages often have negative and unintended effects. This paper adds to the literature on disseminating evidence about behavioral health issues to policymakers. A web-based survey experiment was conducted in which U.S. state legislators/staffers were randomized to view a policy brief about adverse childhood experiences (ACEs) that was tailored to present data from their state (intervention condition) or a policy brief that presented national data and then completed a survey. Legislators/staffers who viewed the state-tailored policy brief perceived the brief as slightly more relevant, but also rated parents as being significantly more to blame for the behavioral health consequence of ACEs. The effect of the state-tailored policy brief on parental blame is an unintended messaging effect that signals cause for caution when disseminating evidence about ACEs to policymakers and other practice audiences. More broadly, the findings highlight a need to consider unintended messaging effects in dissemination research and practice.

Intensity of end-of-life care among children with life-threatening conditions: a national population-based observational study.

BACKGROUND: Children with life-threatening conditions frequently experience high intensity care at the end of life, though most of this research only focused on children with cancer. Some research suggests inequities in care provided based on age, disease type, socioeconomic status, and distance that the child lives from a tertiary hospital. We examined: 1) the prevalence of indicators of high intensity end-of-life care (e.g., hospital stays, intensive care unit [ICU] stays, death in ICU, use of cardiopulmonary resuscitation [CPR], use of mechanical ventilation) and 2) the association between demographic and diagnostic factors and each indicator for children with any life-threatening condition in Canada. METHODS: We conducted a population-based retrospective cohort study using linked health administrative data to examine care provided in the last 14, 30, and 90 days of life to children who died between 3 months and 19 years of age from January 1, 2008 to December 31, 2014 from any underlying life-threatening medical condition. Logistic regression was used to model the association between demographic and diagnostic variables and each indicator of high intensity end-of-life care except number of hospital days where negative binomial regression was used. RESULTS: Across 2435 child decedents, the most common diagnoses included neurology (51.1%), oncology (38.0%), and congenital illness (35.9%), with 50.9% of children having diagnoses in three or more categories. In the last 30 days of life, 42.5% (n = 1035) of the children had an ICU stay and 36.1% (n = 880) died in ICU. Children with cancer had lower odds of an ICU stay (OR = 0.47; 95% CI = 0.36-0.62) and ICU death (OR = 0.37; 95%CI = 0.28-0.50) than children with any other diagnoses. Children with 3 or more diagnoses (vs. 1 diagnosis) had higher odds of > 1 hospital stay in the last 30 days of life (OR = 2.08; 95%CI = 1.29-3.35). Living > 400 km (vs < 50 km) from a tertiary pediatric hospital was associated with higher odds of multiple hospitalizations (OR = 2.09; 95%CI = 1.33-3.33). CONCLUSION: High intensity end of life care is prevalent in children who die from life threatening conditions, particularly those with a non-cancer diagnosis. Further research is needed to understand and identify opportunities to enhance care across disease groups.

Delivery and short-term maternal and fetal safety of vaginally administered PEG-PLGA nanoparticles.

At the onset of pregnancy, people with preexisting conditions face additional challenges in carrying their pregnancy to term, as the safety of the developing fetus and pregnant person is a significant factor of concern. Nanoparticle (NP)-based therapies have displayed success against various conditions and diseases in non-pregnant patients, but the use of NPs in maternal-fetal health applications needs to be better established. Local vaginal delivery of NPs is a promising administration route with the potential to yield high cargo retention in the vagina and improved therapeutic efficacy compared to systemic administration that results in rapid NP clearance by the hepatic first-pass effect. In this study, we investigated the biodistribution and short-term toxicity of poly(ethylene glycol)-poly(lactic-co-glycolic acid) (PEG-PLGA) NPs in pregnant mice following vaginal delivery. The NPs were either loaded with DiD fluorophores for tracking cargo distribution (termed DiD-PEG-PLGA NPs) or included Cy5-tagged PLGA in the formulation for tracking polymer distribution (termed Cy5-PEG-PLGA NPs). DiD-PEG-PLGA NPs were administered at gestational day (E)14.5 or 17.5, and cargo biodistribution was analyzed 24 h later by fluorescence imaging of whole excised tissues and histological sections. No gestational differences in DiD distribution were observed, so Cy5-PEG-PLGA NPs were administered at only E17.5 to evaluate polymer distribution in the reproductive organs of pregnant mice. Cy5-PEG-PLGA NPs distributed to the vagina, placentas, and embryos, whereas DiD cargo was only observed in the vagina. NPs did not impact maternal, fetal, or placental weight, suggesting they display no short-term effects on maternal or fetal growth. The results from this study encourage future investigation into the use of vaginally delivered NP therapies for conditions affecting the vagina during pregnancy.

Self-management for sickle cell disease among patients and parents: A qualitative study.

OBJECTIVE: This study aimed to explore self-management practices among patients and parents of children with sickle cell disease (SCD). METHODS: The qualitative descriptive design was employed. The study involved 19 participants comprising adult SCD patients ≥16 years, and nine parents of SCD children ≤ 15 years. Purposive sampling was conducted to select participants from a teaching hospital and SCD association. Data was collected using one-on-one interviews, transcribed verbatim, and analysed using qualitative content analysis. RESULTS: Self-management was reported through four categories including preventive health, self-monitoring, self-diagnosis, and self-treatment. Hydration, nutrition, activity limitation, avoidance of cold temperatures, and supportive medications were the most common preventive health actions. Regarding self-monitoring and self-diagnosis, the parents emphasized objective indicators such as changes in urine and eye colour compared to the adults who utilize subjective indicators such as feeling unwell and easy fatigue. Pharmacological and non-pharmacological measures were reported by both groups for treating painful episodes, fever, leg ulcers, priapism, and unspecified symptoms. DISCUSSION: The participants in this study practice several self-management actions with some differences in application between adults and children. Tailored self-management services may be helpful for adults and children when developing services for SCD patients.

Matrix metalloproteinase activity during methamphetamine cued relapse.

Relapse to drug seeking involves transient synaptic remodelling that occurs in response to drug-associated cues. This remodelling includes activation of matrix metalloproteinases (MMPs) to initiate catalytic signalling in the extracellular matrix in the nucleus accumbens core (NAcore). We hypothesized that MMP activity would be increased in the NAcore during cue-induced methamphetamine (meth) seeking in a rat model of meth use and relapse. Male and female rats had indwelling jugular catheters and bilateral intracranial cannula targeting the NAcore surgically implanted. Following recovery, rats underwent meth or saline self-administration (6 h/day for 15 days) in which active lever responding was paired with a light + tone stimulus complex, followed by home cage abstinence. Testing occurred after 7 or 30 days of abstinence. On test day, rats were microinjected with a fluorescein isothiocyanate (FITC)-quenched gelatin substrate that fluoresces following cleavage by MMP-2,9, allowing for the quantification of gelatinase activity during cued-relapse testing. MMP-2,9 activity was significantly increased in the NAcore by meth cues presentation after 7 and 30 days of abstinence, indicating that remodelling by MMPs occurs during presentation of meth associated cues. Surprisingly, although cue-induced seeking increased between Days 7 and 30, MMP-2,9 activity did not increase. These findings indicate that although MMP activation is elicited during meth cue-induced seeking, MMP activation did not parallel the meth seeking that occurs during extended drug abstinence.

Endometriosis: Cell Death and Cell Signaling Machinery.

Endometriosis is an estrogen-dependent disorder defined as the deposition and growth of endometrial tissue outside the uterus, including but not limited to the pelvic peritoneum, rectovaginal septum, and ovaries. Endometriosis is a substantial contributor to pelvic pain and subfertility and has been associated with an increased incidence of certain cancers, including ovarian. Appropriate treatment of endometriosis can reduce morbidity, but generally is used only to address symptoms, since no cure currently exists. Multifactorial etiologies for endometriosis have been proposed, with significant evidence for genetic, immune, and environmental causes. Recent advances suggest that molecular signaling and programmed cell death pathways are involved in endometriosis, suggesting avenues for future curative treatments. The goal of this review is to examine the pathologic processes of endometriosis, focusing on cell signaling and cell death pathways, stem cells, treatment regimens, and future directions surrounding this gynecologic disorder.

Location of death among children with life-threatening conditions: a national population-based observational study using the Canadian Vital Statistics Database (2008-2014).

BACKGROUND: Patterns in location of death among children with life-threatening conditions (e.g., cancer, genetic disorders, neurologic conditions) may reveal important inequities in access to hospital and community support services. We aimed to identify demographic, socioeconomic and geographic factors associated with variations in location of death for children across Canada with life-threatening conditions. METHODS: We used a retrospective observational cohort design and the Canadian Vital Statistics Database to identify children aged 19 years or younger who died from a life-threatening condition between Jan. 1, 2008, and Dec. 31, 2014. We used multivariable logistic regression to determine predictors of in-hospital death for children aged 1 month to 19 years, and for neonates younger than 1 month. RESULTS: Overall, 13 115 decedents younger than 19 years had life-threatening conditions. Of 5250 children and 7865 neonates, 74.2% and 98.1%, respectively, died in hospital. Among children, we found a higher proportion of hospital deaths in the lowest (v. highest) income quintile (odds ratio [OR] 1.59, 95% confidence interval [CI] 1.28-1.97), and a lower proportion among children living more than 400 km (v. < 50 km) from a pediatric hospital (OR 0.73, 95% CI 0.65-0.86). Compared with Ontario, hospital death was most common in Quebec (OR 1.38, 95% CI 1.14-1.67) and least common in British Columbia (OR 0.43, 95% CI 0.34-0.53). Compared with an oncologic cause of death, all causes except neurologic and metabolic conditions had significantly higher odds of dying in hospital. INTERPRETATION: In addition to demographics, we identified socioeconomic and geographic differences in location of death, suggesting potential inequities in access to high-quality care at the end of life. Health care policies and practices must ensure equitable access to services for children across Canada, particularly at the end of their life.

Newspaper Coverage of Adverse Childhood Experiences and Toxic Stress in the United States, 2014-2020: Consequences, Causes, and Solutions.

News media can shape public opinion about child adversity and influence the translation of research into public policy. Research about adverse childhood experiences (ACEs) and toxic stress has increased dramatically in recent years, but little is known about how these concepts are covered in news media. We reviewed how newspapers in the United States have portrayed the consequences of, causes of, and solutions to address ACEs and toxic stress, examined trends in newspaper coverage, and assessed differences in coverage of ACEs versus toxic stress. Quantitative content analysis was conducted of 746 newspaper articles mentioning "adverse childhood experience(s)" and/or "toxic stress" published in 25 U.S. newspapers between January 1, 2014, and May 30, 2020. κ statistics of interrater reliability were calculated, and variables with κ ≥ .60 were retained for quantitative analysis. We found that newspaper coverage of ACEs and toxic stress increased dramatically between 2014 and 2018 and then sharply declined. Only 13.3% of articles mentioned both ACEs and toxic stress. There were many statistically significant (p < .05) differences in the causes, consequences, and solutions identified in articles focused on ACEs versus toxic stress. Coverage of both concepts predominantly focused on consequences for individuals, not society. However, 54.6% of articles identified a structural cause of ACEs and/or toxic stress. Increased volume in newspaper coverage about ACEs and toxic stress could increase public awareness about the relationship between childhood adversity and adult outcomes. There is a need to portray ACEs and toxic stress as complementary concepts more coherently in news media.

Clinical characteristics of children with severe neurologic impairment: A scoping review.

OBJECTIVE: The aim of this study is to extrapolate the clinical features of children with severe neurologic impairment (SNI) based on the functional characteristics and comorbidities described in published studies. METHODS: Four databases were searched. We included studies that describe clinical features of a group of children with SNI (≥20 subjects <19 years of age with >1 neurologic diagnosis and severe functional limitation) using data from caregivers, medical charts, or prospective collection. Studies that were not written in English were excluded. We extracted data about functional characteristics, comorbidities, and study topics. RESULTS: We included 102 studies, spanning 5 continents over 43 years, using 41 distinct terms for SNI. The terms SNI and neurologic impairment (NI) were used in 59 studies (58%). Most studies (n = 81, 79%) described ≥3 types of functional characteristics, such as technology assistance and motor impairment. Studies noted 59 comorbidities and surgeries across 10 categories. The most common comorbidities were related to feeding, nutrition, and the gastrointestinal system, which were described in 79 studies (77%). Most comorbidities (76%) were noted in <10 studies. Studies investigated seven clinical topics, with "Gastrointestinal reflux and feeding tubes" as the most common research focus (n = 57, 56%). The next most common topic, "Aspiration and respiratory issues," included 13 studies (13%). Most studies (n = 54, 53%) were retrospective cohorts or case series; there were no clinical trials. CONCLUSIONS: Despite the breadth of described comorbidities, studies focused on a narrow set of clinical topics. Further research is required to understand the prevalence, clinical impact, and interaction of the multiple comorbidities that are common in children with SNI.

Nurses' Lived Experiences of Caring for Patients with COVID-19 in Nigeria.

Introduction: Since the beginning of the COVID-19 pandemic, nurses have been on the frontline providing care for patients with COVID-19. Caring for patients with COVID-19 can be a rewarding experience for nurses, but research also suggests that nurses experience numerous challenges on the frontline. Objectives: This study aims to explore the experiences of frontline nurses caring for patients with COVID-19 in Nigeria. Methods: Ten nurse volunteers working in a COVID-19 isolation center were purposively recruited. Data were collected with a semi-structured interview guide, and a template analysis approach was used to analyze the transcribed interviews. Results: The participants volunteered at the isolation center for safety reasons, professional gain, and concern for humanity. Working at the isolation center was accompanied by changes in working hours, work dynamics, care context and care tools. These changes resulted in personal, professional, and work-related challenges for nurses. However, team spirit, positive patient outcomes, gratitude and family support helped the nurses cope with the challenges. Conclusions: This research highlighted that working on the frontline of COVID-19 is associated with multiple and complex challenges that can impact nurses' personal and professional life. Thus, a tailored approach to support is needed to address the challenges faced by frontline nurses.