Strategic insights from a Delphi study: enhancing employment for multiply marginalized people with disabilities.

Introduction: The employment landscape for multiply marginalized people with disabilities presents significant challenges, exacerbated by intersecting identities such as race/ethnicity, sexual orientation, gender identity, poverty, and geography. Recent studies highlight the compounded employment disparities faced by this group, including discriminatory hiring practices, inadequate accommodations, and uneven gains in employment during the COVID-19 public health emergency. Methods: Our study employed a three-round Delphi process with 20 diverse experts across 14 states across the United States (U.S.) to formulate recommendations for improving employment experiences for multiply marginalized people with disabilities. The panel's insights were gathered through surveys administered online, with each round designed to refine the collective recommendations. This iterative process aimed to build a consensus on the most effective policy and practice recommendations for improving employment outcomes within this population. Results: The Delphi study identified key areas for strategic focus, including emergency preparedness, education and training, transportation, assistive technology, workplace accommodations, and combating discrimination and stigma. Notable recommendations included improving emergency preparedness training, enhancing employment education, increasing funding for accessible transportation and assistive technology, and promoting inclusive hiring practices. The study also emphasized the need for policies supporting telework and simplifying disability-related benefits. Discussion: The findings highlight the critical role of tailored strategies to address employment challenges faced by people with disabilities from marginalized communities. Meaningfully and fully implementing these recommendations would create a more inclusive environment that improves employment outcomes for multiply marginalized people with disabilities.

Environmental toxicants modulate disease severity in pediatric metabolic dysfunction-associated steatohepatitis.

OBJECTIVES: Metabolic dysfunction-associated steatotic liver disease (MASLD) is common in children. We hypothesized environmental toxins could drive progression to metabolic dysfunction-associated steatohepatitis (MASH), and assayed serum toxins and metabolites in children with histologically characterized MASLD/MASH. METHODS: Environmental chemicals, common in household items, perfluoroalkyl substances (PFAS), brominated flame retardants (PBDEs), and metabolic profiles were assayed in children enrolled in the multicenter NASH Clinical Research Network Pediatric Database 2. Mixture models, using repeated holdout weighted quantile sum regression (WQSrh) were run in addition to single chemical/metabolite logistic regression. For metabolomic analyses, random subset version of WQSrh was used for the large number of predictors versus participants. Nominal and false discovery rate (FDR) p-values (two-sided) were computed. RESULTS: Four hundred and thirty-five children distributed across MASH (n = 293) and MASLD (n = 142), with 304 (69.9%) males. Mean (standard deviation) for Nonalcoholic Steatohepatitis Score (NAS) and alanine aminotransferase (ALT) for MASLD were 3.1 (1.0), 67.9 (43.4), and for MASH 4.2 (1.4), 144 (121). There was an inverse association between PFAS/PBDE mixture and MASH versus MASLD, lobular inflammation (p = 0.026), NAS (p = 0.009, FDR p = 0.04), and log-transformed ALT (p = 0.005, FDR p = 0.025) driven by perfluorohexane sulfonate (PFHxS). Metabolites from positive hydrophilic interaction liquid chromatography mode, biliverdin (p = 0.002) and 1-methylhistidine (associated with meat ingestion, p = 0.02) and reverse phase negative mode, hippuric acid (solvent exposure, p = 0.022) significantly associated with MASH. CONCLUSIONS: Significant negative PFAS/PBDE mixture effect and odds of MASH were dominated by PHFXS. Several metabolites are significantly associated with MASH which inform mechanistic pathways and could drive key therapeutic and diagnostic strategies in children.

Comparison of Researcher-Led versus Teacher-Led effectiveness and fidelity: A Hybrid Type 1 study of Kids SIPsmartER in Appalachia middle schools.

The implementation of school-based obesity-prevention programs is understudied. Kids SIPsmartER is a 6-month, school-based, behavioral intervention for Appalachian middle school students and includes a teacher implementation strategy. Kids SIPsmartER effectively reduced students' sugar-sweetened beverages (SSB) when Researcher-Led. However, Teacher-Led effectiveness and fidelity are unknown. To explore the relative SSB effects when Kids SIPsmartER was Researcher-Led versus Teacher-Led and to examine teacher fidelity. This study of secondary outcomes used a quasi-experimental analytic approach of a Hybrid Type 1 effectiveness-implementation and cluster randomized controlled tria (RCT) of Kids SIPsmartER. Student SSB behaviors and teacher self-rated fidelity were assessed, respectively, with the validated Beverage Intake Questionnaire (BEVQ-15) and lesson-specific checklists. Analyses included descriptive statistics and modified two-part models with time-fixed effects and school-year cohort cluster controls. The analytic sample included students from six control schools (n = 220), six Researcher-Led intervention schools (n = 306), and five Teacher-Led intervention schools (n = 218), as well as eight teachers. Teacher-Led intervention students decreased SSB by -14.3 ounces/day (95% confidence interval = -15.4, -13.2; P < .001). Relative to control and to Researcher-Led intervention, the Teacher-Led treatment effect among students was -11.6 ounces SSB/day (P < .001, effect size = 0.75) and -4.3 (P = .004, effect size = 0.25), respectively. Teachers returned fidelity checklists for 90% of planned lessons. Fidelity averaged 94% (SD = 4.0%) among returned forms and 85% (SD = 18.9%) when missing forms were counted as zeros. Teachers can implement Kids SIPsmartER with high fidelity and produce statistically and clinically meaningful improvements in students' SSB behaviors. Findings have implications for the sustained implementation of Kids SIPsmartER and other school-based obesity-prevention programs. Clinical Trial information: NCT03740113.

Numerous evidence-based behavioral interventions related to obesity prevention have been established in schools, yet relatively few have been replicated or successfully implemented by teachers. Kids SIPsmartER is a school-based, behavioral intervention for Appalachian middle school students that effectively reduced students' sugar-sweetened beverages (SSB) when delivered by researchers. This study describes the implementation strategies bundle for teachers. The purpose of this study was to explore SSB effects among students when Kids SIPsmartER was delivered by teachers versus delivered by researchers and relative to control students. Teacher fidelity to the program was also examined. Students decreased their SSB more when teachers delivered Kids SIPsmartER, compared with when the researcher delivered the program and to control students. Teachers also taught the intervention with high program fidelity. In sum, teachers can implement Kids SIPsmartER with high fidelity and can produce meaningful improvements in students' SSB behaviors. Findings have implications for the sustained implementation of Kids SIPsmartER among teachers as well as for other school-based programs.

Counting everyone: evidence for inclusive measures of disability in federal surveys.

The US Census Bureau has used the American Community Survey six-question set (ACS-6) to identify disabled people since 2008. In late 2023, the Census Bureau proposed changes to these questions that would have reduced disability prevalence estimates by 42%. Because these estimates inform funding and programs that support the health and independence of people with disabilities, many disability researchers and advocates feared this change in data collection would lead to reductions in funding and services. While the Census has paused-but not ruled out-the proposed changes, it is critical that alternate, more inclusive disability questions be identified and tested. We used data from the 2023/2024 National Survey on Health and Disability to explore alternative questions to identify disabled people in national surveys. A single broad question about conditions identified 11.2% more people with disabilities, and missed significantly fewer people with psychiatric disabilities compared to the current ACS-6 questions. A combination of a broad question and the existing ACS-6 questions may be necessary to more accurately and inclusively identify people with disabilities.

Long COVID Among People With Preexisting Disabilities.

Objectives. To document the prevalence of long COVID among a sample of survey respondents with long-term disabilities that existed before 2020 and to compare the prevalence among this group with that among the general population. Methods. We conducted a cross-sectional, descriptive study using data from the 2022 National Survey on Health and Disability (n = 2262) and comparative data for the general population from the federal Household Pulse Survey (HPS). Results. The prevalence of long COVID was higher among people with preexisting disabilities than in the general population (40.6% vs 18.9%). Conclusions. People with preexisting disabilities experienced and continue to experience increased exposure to COVID-19 and barriers to accessing health care, COVID-19 vaccines, and COVID-19 tests. These barriers, combined with long-standing health disparities in this population, may have contributed to the greater prevalence of long COVID among people with disabilities. Public Health Implications. The needs of people with disabilities must be centered in the response to the COVID-19 pandemic and future pandemics. (Am J Public Health. 2024;114(11):1261-1264. https://doi.org/10.2105/AJPH.2024.307794).

A large net carbon loss attributed to anthropogenic and natural disturbances in the Amazon Arc of Deforestation.

The Amazon forest contains globally important carbon stocks, but in recent years, atmospheric measurements suggest that it has been releasing more carbon than it has absorbed because of deforestation and forest degradation. Accurately attributing the sources of carbon loss to forest degradation and natural disturbances remains a challenge because of the difficulty of classifying disturbances and simultaneously estimating carbon changes. We used a unique, randomized, repeated, very high-resolution airborne laser scanning survey to provide a direct, detailed, and high-resolution partitioning of aboveground carbon gains and losses in the Brazilian Arc of Deforestation. Our analysis revealed that disturbances directly attributed to human activity impacted 4.2% of the survey area while windthrows and other disturbances affected 2.7% and 14.7%, respectively. Extrapolating the lidar-based statistics to the study area (544,300 km2), we found that 24.1, 24.2, and 14.5 Tg C y-1 were lost through clearing, fires, and logging, respectively. The losses due to large windthrows (21.5 Tg C y-1) and other disturbances (50.3 Tg C y-1) were partially counterbalanced by forest growth (44.1 Tg C y-1). Our high-resolution estimates demonstrated a greater loss of carbon through forest degradation than through deforestation and a net loss of carbon of 90.5 ± 16.6 Tg C y-1 for the study region attributable to both anthropogenic and natural processes. This study highlights the role of forest degradation in the carbon balance for this critical region in the Earth system.

Antifungal, molecular docking and cytotoxic effect of the essential oil of Cymbopogon citratus (DC) Stapf. and Cymbopogon nardus (L.) Rendle against Candida albicans.

Brazil is renowned for its extensive plant biodiversity, with emphasis on Cymbopogon, C. citratus and C. nardus, with broad antimicrobial potential. Candidemias caused by Candida albicans are highly prevalent in immunosuppressed individuals and are associated with infections by biofilms on medical devices. The aim of this study was to evaluate the antimicrobial potential of essential oils C. citratus and C. nardus against C. albicans in planktonic and biofilm forms. Essential oils were obtained by hydrodistillation and chemical composition evaluated by GC-FID and GC-MS. The minimum inhibitory concentration was determined by the broth microdilution method and the synergy effect of essential oils and amphotericin B were evaluated by the checkerboard test. Biofilm activity was determined by the XTT assay. Cytotoxicity assays performed with VERO cells and molecular docking were performed to predict the effect of oil interaction on the SAP-5 enzyme site. The results showed activity of essential oils against planktonic cells and biofilm of C. albicans. Furthermore, the oils had a synergistic effect, and low cytotoxicity. Molecular docking showed interaction between Cadinene, Caryophyllen oxide, Germacrene D with SAP-5. The results indicate that Cymbopogon spp. studied are anti-Candida, with potential for further application in therapy against infections caused by C. albicans.

Screening for Pelvic Floor Disorders and Sexual Dysfunction in Postpartum Women: A Retrospective Cohort Study.

Objectives This study assesses the screen rate and prevalence of postpartum pelvic floor disorders and sexual dysfunction (PFDs/SD) within the first year of delivery. Methods This is a retrospective review of postpartum women seen in a university clinic who delivered at the associated hospital and had postpartum visits from June 1, 2020, to April 15, 2022. Charts were reviewed from delivery to one year postpartum. Demographic and clinical characteristics were compared between women with and without postpartum screening. Results Three hundred thirty-four women met inclusion criteria. Two hundred twenty (65.9%) were screened for PFDs/SD. Compared to women who were not screened, women who were screened were older (32.6 vs 31.3 years, p=0.02). Women with a cesarean delivery (73% vs. 58% vaginal, p=0.004), delivered by an attending or resident (70% vs 60% midwife, p=0.06), first postpartum visit at less than six weeks after delivery (76% vs. 43% 6-12 weeks, p<0.001), and three or more postpartum visits (80% vs. 65% two visits, 50% one visit, p<0.001) were more likely to be screened. In an adjusted model, only timing of the first postpartum visit remained significant. Urinary incontinence and fecal incontinence were the most common PFDs diagnosed. Of the 41 women who had PFDs and/or SD, 31 (75.6%) were referred to pelvic floor physical therapy (PFPT) and/or urogynecology. Discussion In this retrospective cohort study, we found a low rate of postpartum screening for PFDs/SDs. This deficiency highlights critical gaps in care for postpartum women.

Development and Validation of Electronic Health Record Measures of Safety Planning Practices as Part of Zero Suicide Implementation.

OBJECTIVE: Safety planning for suicide prevention is an important quality metric for Zero Suicide implementation. We describe the development, validation, and application of electronic health record (EHR) programs to measure uptake of safety planning practices across six integrated healthcare systems as part of a Zero Suicide evaluation study. METHODS: Safety planning was documented in narrative notes and structured EHR templates using the Stanley Brown Safety Planning Intervention (SBSPI) in response to a high-risk cutoff score on the Columbia Suicide Severity Rating Scale (CSSRS). Natural Language Processing (NLP) metrics were developed and validated using chart review to characterize practices documented in narrative notes. We applied NLP to measure frequency of documentation in the narrative text and standard programming methods to examine structured SBSPI templates from 2010-2022. RESULTS: Chart reviews found three safety planning practices documented in narrative notes that were delivered to at least half of patients at risk: professional contacts, lethal means counseling for firearms, and lethal means counseling for medication access/storage. NLP methods were developed to identify these practices in clinical text with high levels of accuracy (Sensitivity, Specificity, & PPV ≥ 82%). Among visits with a high-risk CSSRS, 40% (Range 2-73% by health system) had an SBSPI template within 1 year of implementation. CONCLUSIONS: This is one of the first reports describing development of measures that leverage electronic health records to track use of suicide prevention safety plans. There are opportunities to use the methods developed here in future evaluations of safety planning.

Measuring safety planning delivery in real-world systems to understand quality of suicide prevention care is challenging.Natural Language Processing (NLP) methods effectively identified some safety planning practices in electronic health records (EHR) from all notes ensuring a comprehensive measurement, but NLP will require updates/testing for local documentation practices.Structured safety planning templates in the EHR using the Stanley Brown Safety Planning Intervention improve ease and accuracy of measurement but may be less comprehensive than NLP for capturing all instances of safety planning documentation.

Postsurgical Pain Risk Stratification to Enhance Pain Management Workflow in Adult Patients: Design, Implementation, and Pilot Evaluation.

BACKGROUND: Exposure to opioids after surgery is the initial contact for some people who develop chronic opioid use disorder. Hence, effective postoperative pain management, with less reliance on opioids, is critical. The Perioperative Opioid Quality Improvement (POQI) program developed (1) a digital health platform leveraging patient-survey-reported risk factors and (2) a postsurgical pain risk stratification algorithm to personalize perioperative care by integrating several commercially available digital health solutions into a combined platform. Development was reduced in scope by the COVID-19 pandemic. OBJECTIVE: This pilot study aims to assess the screening performance of the risk algorithm, quantify the use of the POQI platform, and evaluate clinicians' and patients' perceptions of its utility and benefit. METHODS: A POQI platform prototype was implemented in a quality improvement initiative at a Canadian tertiary care center and evaluated from January to September 2022. After surgical booking, a preliminary risk stratification algorithm was applied to health history questionnaire responses. The estimated risk guided the patient assignment to a care pathway based on low or high risk for persistent pain and opioid use. Demographic, procedural, and medication administration data were extracted retrospectively from the electronic medical record. Postoperative inpatient opioid use of >90 morphine milligram equivalents per day was the outcome used to assess algorithm performance. Data were summarized and compared between the low- and high-risk groups. POQI use was assessed by completed surveys on postoperative days 7, 14, 30, 60, 90, and 120. Semistructured patient and clinician interviews provided qualitative feedback on the platform. RESULTS: Overall, 276 eligible patients were admitted for colorectal procedures. The risk algorithm stratified 203 (73.6%) as the low-risk group and 73 (26.4%) as the high-risk group. Among the 214 (77.5%) patients with available data, high-risk patients were younger than low-risk patients (age: median 53, IQR 40-65 years, vs median 59, IQR 49-69 years, median difference five years, 95% CI 1-9; P=.02) and were more often female patients (45/73, 62% vs 80/203, 39.4%; odds ratio 2.5, 95% CI 1.4-4.5; P=.002). The risk stratification was reasonably specific (true negative rate=144/200, 72%) but not sensitive (true positive rate=10/31, 32%). Only 39.7% (85/214) patients completed any postoperative quality of recovery questionnaires (only 14, 6.5% patients beyond 60 days after surgery), and 22.9% (49/214) completed a postdischarge medication survey. Interviewed participants welcomed the initiative but noted usability issues and poor platform education. CONCLUSIONS: An initial POQI platform prototype was deployed operationally; the risk algorithm had reasonable specificity but poor sensitivity. There was a significant loss to follow-up in postdischarge survey completion. Clinicians and patients appreciated the potential impact of preemptively addressing opioid exposure but expressed shortcomings in the platform's design and implementation. Iterative platform redesign with additional features and reevaluation are required before broader implementation.

Navigating new normals: the influence of COVID-19 policies on community access and well-being of people with mobility disabilities in everyday life.

Context: This study explores the influence of COVID-19 public health mandates on people with mobility disabilities in the United States in their everyday lives. It highlights the intersection of disability with social determinants of health, emphasizing the need for a comprehensive policy response. Methods: Qualitative data were collected through 76 semi-structured interviews with people with mobility disabilities. Interviews focused on experiences with COVID-19 mandates and community access, analyzed using thematic analysis and coded for emergent subthemes. Results: The relationship between community participation and COVID-19 compliance was complex for people with disabilities. Inaccessible environments and inflexible policies made it difficult for people with disabilities to practice good safety measures, while widespread noncompliance by community members limited their community participation. The findings revealed additional mixed lived experiences of COVID-19 policies on community participation, accessibility, and access to resources and support. While technology facilitated some aspects of community participation, issues with accessibility, public transportation, and personal assistance services were exacerbated. Conclusion: COVID-19 policies have complex implications for people with mobility disabilities. Findings suggest a need for inclusive policymaking, improved disability awareness, and continued support for accessible technology and services. Future research should further explore these dynamics to inform policy and practice.

Renal impairment is prevalent in pediatric NAFLD/MASLD and associated with disease severity.

OBJECTIVES: Renal impairment is prevalent in adults with nonalcoholic fatty liver disease (NAFLD/metabolic dysfunction associated steatotic liver disease [MASLD]) and is associated with increased mortality. Pediatric data are limited. Our objective was to determine the prevalence of hyperfiltration or chronic kidney disease (CKD) in children with NAFLD/MASLD and determine links with liver disease severity. METHODS: Data from children who had previously participated in prospective, multicenter, pediatric studies by the Nonalcoholic Steatohepatitis Clinical Research Network (NASH-CRN) were collected. Renal function was determined using the calculated glomerular filtration rate (cGFR). Hyperfiltration was defined as cGFR > 135 mL/min/1.73m2, while CKD stage 2 or higher as cGFR < 90 mL/min/1.73 m2. Renal dysfunction progression was defined as transition from normal to hyperfiltration or to CKD stage ≥ 2, or change in CKD by ≥1 stage. Multinomial logistic regression models were used to determine the prevalence of CKD and independent associations between CKD and liver disease severity. RESULTS: The study included 1164 children (age 13 ± 3 years, 72% male, 71% Hispanic). The median cGFR was 121 mL/min/1.73 m2; 12% had CKD stage 2-5, while 27% had hyperfiltration. Hyperfiltration was independently associated with significant liver fibrosis (odds ratio: 1.45). Baseline renal function was not associated with progression in liver disease over a 2-year period (n = 145). Renal dysfunction worsened in 19% independently of other clinical risk factors. Progression of renal impairment was not associated with change in liver disease severity. CONCLUSIONS: Renal impairment is prevalent in children with NAFLD/MASLD and hyperfiltration is independently associated with significant liver fibrosis. Almost 1/5 children have evidence of progression in renal dysfunction over 2 years, not associated with change in liver disease severity. Future assessments including additional renal impairment biomarkers are needed.

Measuring disability among U.S. adolescents and young adults: A survey measurement experiment.

Objective: Disability is identified in surveys using various question sets, with little understanding of reliability across these measures, nor how these estimates may vary across age groups, including adolescents and young adults (AYA). The purpose of this study was to assess AYA prevalence of disability using two disability question sets and reliability of these measures. Methods: AYA participants in the Policy and Communication Evaluation (PACE) Vermont Study completed a single-item disability question used in the National Survey on Health and Disability (NSHD) and Urban Institute's Health Reform Monitoring Survey (HRMS) and a six-item set on functioning (Washington Group-Short Set, WG-SS) from the National Health Interview Survey (NHIS) and National Survey on Drug Use and Health (NSDUH) in 2021. Prevalence was estimated for any disability and each disability domain in adolescents (ages 12-17) and young adults (ages 18-25) and compared with U.S. national estimates in NHIS and NSDUH. Results: Using the WG-SS, the prevalence of any disability was 17.0 % in PACE Vermont adolescents and 22.0 % in young adults, consistent with the national prevalence of adolescents in NSDUH (17.9 %) but higher than estimates of young adults in NHIS (3.9 %) and NSDUH (12.9 %). The single-item question provided lower estimates of disability (adolescents: 6.9 %; young adults: 18.5 %) than the WG-SS, with low positive agreement between measures. Discussion: The prevalence of disability in AYAs varies depending on measures used. To improve disability surveillance, it may be necessary to validate new disability questions, including among AYAs, to capture a broader range of disability domains.

A new objective method for determining exercise gas exchange thresholds by respiratory frequency in middle-aged men.

PURPOSE: To evaluate the agreement between the two Gas Exchange Thresholds (GETs = GET1 and GET2), identified by the conventional V-Slope method, and two Respiratory Frequency Thresholds (fRTs = fRT1 and fRT2) obtained from a novel, low-cost, and simple method of breakpoint determination. METHODS: Fifty middle-aged males (age: 50-58 years; V ˙ o2peak: 37.5 ± 8.6 mL·Kg-1·min-1), either healthy or with chronic illnesses, underwent an incremental cycle exercise test to determine maximal oxygen uptake ( V ˙ o2max/ V ˙ o2peak), GETs and fRTs. RESULTS: There were no statistical differences [P > 0.05; ES: 0.17 to 0.32, small] between absolute and relative (56-60% V ˙ o2peak) oxygen uptake ( V ˙ o2) values at GET1 with those obtained at fRT1, nor between V ˙ o2 values at GET2 with those at fRT2 (76-78% V ˙ o2peak). Heart rate (HR) at fRT1, and V ˙ o2 and HR at fRT2 showed very large correlations (r = 0.75-0.82; P < 0.001) and acceptable precision (SEE < 7-9%) in determination of their corresponding values at GET1 and GET2. The precision in the estimation of V ˙ o2 at GET1 from fRT1 was moderate (SEE = 15%), while those of power output at GET1 (SEE = 23%) and GET2 (SEE = 12%) from their corresponding fRTs values were very poor to moderate. CONCLUSION: HR at fRT1 and V ˙ o2 and HR at fRT2, determined using a new objective and portable approach, may potentially serve as viable predictors of their respective GETs. This method may offer a simplified, cost-effective, and field-based approach for determining exercise threshold intensities during graded exercise.

Latin-American guidelines of recommendations at discharge from an acute coronary syndrome.

The diagnostic criteria, treatments at the time of admission, and drugs used in patients with acute coronary syndrome are well defined in countless guidelines. However, there is uncertainty about the measures to recommend during patient discharge planning. This document brings together the most recent evidence and the standardized and optimal treatment for patients at the time of discharge from hospitalization for an acute coronary syndrome, for comprehensive and safe care in the patient's transition between care from the acute event to the outpatient care, with the aim of optimizing the recovery of viable myocardium, guaranteeing the most appropriate secondary prevention, reducing the risk of a new coronary event and mortality, as well as the adequate reintegration of patients into daily life.

Los criterios diagnósticos, los tratamientos en el momento de la admisión y los fármacos utilizados en pacientes con síndrome coronario agudo están bien definidos en innumerables guías. Sin embargo, existe incertidumbre acerca de las medidas para recomendar durante la planificación del egreso de los pacientes. Este documento reúne las evidencias más recientes y el tratamiento estandarizado y óptimo para los pacientes al momento del egreso de una hospitalización por un síndrome coronario agudo, para un cuidado integral y seguro en la transición del paciente entre la atención del evento agudo y el cuidado ambulatorio, con el objetivo de optimizar la recuperación de miocardio viable, garantizar la prevención secundaria más adecuada, reducir el riesgo de un nuevo evento coronario y la mortalidad, así como la adecuada reinserción de los pacientes en la vida cotidiana.

The impact of yeast-encapsulated orange oil in Aedes aegypti oviposition.

The yeast-encapsulated orange oil (YEOO) is a novel larvicide under development against vector mosquitoes. Despite its efficiency against Aedes aegypti (L.) in small scale experiments, its applicability in vector control can be influenced by other effects on mosquito behaviour or physiology. For this reason, the impact of YEOO particles in mosquito oviposition was evaluated in laboratory and semi-field conditions. Oviposition assays with one gravid Aedes aegypti female were carried under laboratory and semi-field conditions with natural light and temperature fluctuation. For all ovitraps, the number of eggs was manually counted in the wooden paddle and in the solution of each ovitrap. The proportion of eggs between substrates (wooden paddle and solution) varied between conditions, with females in laboratory presenting a lower preference to lay eggs in paddles when compared with studies in semi-field. This behaviour shifts in laboratory can create challenges to extrapolate results from laboratory to the field. Here, studies in both conditions indicate a similar impact of YEOO particles in Aedes aegypti oviposition. The potential treatment concentration of YEOO particles presents a strong repellent/deterrent effect (-0.559 > OAI > -0.760) within the initial 72h of application when compared with water, and weak repellent/deterrent signal (OAI = -0.220) when compared against inactivated yeast. Control ovitraps with water were more positive for egg presence than treated ovitraps, while ovitraps with YEOO particles and inactivated yeast present similar number of positive ovitraps. It is possible that the repellent/deterrent action is partially driven by the delivery system, since most times Citrus sinensis EO oviposition repellent/deterrent signal is weak, and it seem influenced by solvent/delivery used. However, it is unclear how the yeast wall that protect/surrounds the orange oil will negatively affect oviposition since live yeast are normally consider an attractant for mosquito oviposition.

Characteristics, clinical laboratory, histopathology, and outcomes of glycogenic hepatopathy in children.

Introduction: Glycogenic hepatopathy (GH) is a rare complication of type I diabetes mellitus (DM1), resulting in abnormal deposition of glycogen in the liver due to poor glycemic control. Clinical characteristics and natural history of GH are not completely understood in children. In this study, we investigated clinical, biochemical, histologic parameters and outcomes in children with GH. Method: This was a retrospective review of patients less than 18 years old diagnosed with GH and DM. GH was confirmed on liver biopsy. Medical records were reviewed for clinical presentation, laboratory tests, and clinical outcomes. Liver biopsy findings were reviewed by a pediatric pathologist (I. A. G.). Results: Nine children were diagnosed with GH and type 1 DM. The median age at diagnosis of GH was 16 (IQR 14.5-17) years. Duration of diagnosis of DM until GH diagnosis was 7 (IQR 5-11) years. The median frequency of diabetic ketoacidosis before GH diagnosis was three times (IQR 2-5.25). Peak Aspartate transaminase (AST) and Alanine transaminase (ALT) ranged from 115 to 797, and 83-389 units/L, respectively. Only two children had mild fibrosis. Seven of nine had steatosis without steatohepatitis. There was no correlation between glycosylated hemoglobin (HbA1c), or other laboratory tests and liver fibrosis on biopsy. HbA1c was 11.2 (IQR 10.2-12.8) at GH diagnosis and 9.8 (IQR 9.5-10.8) with normalization of liver enzymes. Conclusion: GH appears to be related to poor glycemic control in teenagers with long-term diabetes. GH presents with high to very high aminotransferase especially AST > ALT and resolves with modestly improved glycemic control. Diffuse hepatocyte swelling, steatosis, minimal fibrosis without hepatocyte ballooning or lobular inflammation are most common histological features.

Wave-Function Tomography of Topological Dimer Chains with Long-Range Couplings.

The ability to tailor with a high accuracy the intersite connectivity in a lattice is a crucial tool for realizing novel topological phases of matter. Here, we report the experimental realization of photonic dimer chains with long-range hopping terms of arbitrary strength and phase, providing a rich generalization of the Su-Schrieffer-Heeger model which, in its conventional form, is limited to nearest-neighbor couplings only. Our experiment is based on a synthetic dimension scheme involving the frequency modes of an optical fiber loop platform. This setup provides direct access to both the band dispersion and the geometry of the Bloch wave functions throughout the entire Brillouin zone allowing us to extract the winding number for any possible configuration. Finally, we highlight a topological phase transition solely driven by a time-reversal-breaking synthetic gauge field associated with the phase of the long-range hopping, providing a route for engineering topological bands in photonic lattices belonging to the AIII symmetry class.

Exploring biorepository donation patterns, experiences, and recommendations: a mixed-methods study among Appalachian adults enrolled in a sugary drink reduction program.

Background: Under-represented subgroups in biomarker research linked to behavioral health trials may impact the promise of precision health. This mixed methods study examines biorepository donations across an Appalachian sample enrolled in a sugary drink reduction intervention trial. Methods: Participants enrolled in the behavioral trial were asked to join an optional biomarker study and were tracked for enrollment and biospecimen returns (stool and/or buccal sample). At 6 months, participants completed a summative interview on decision-making process, experiences collecting samples, and recommendations to encourage biospecimen donation. Return rates were analyzed across demographics (i.e., age, gender, race, education, income, health literacy status, and rurality status) using chi-squares. Qualitative data were content coded with differences compared by biomarker study enrollment and donation choices. Results: Of the 249 invited participants, 171 (61%) enrolled, and 63% (n = 157) returned buccal samples and 49% (n = 122) returned stool samples. Metro residing participants were significantly more likely (56%) to return stool samples compared to non-metro (39%) counterparts [x2(1) = 6.61; p = 0.01]. Buccal sample return had a similar trend, 67 and 57%, respectively for metro vs. non-metro [x2(1) = 2.84; p = 0.09]. An additional trend indicated that older (≥40 years) participants were more likely (55%) to donate stool samples than younger (43%) participants [x2(1) = 3.39; p = 0.07]. No other demographics were significantly associated with biospecimen return. Qualitative data indicated that societal (66-81%) and personal (41-51%) benefits were the most reported reasons for deciding to donate one or both samples, whereas mistrust (3-11%) and negative perceptions of the collection process (44-71%) were cited the most by those who declined one or both samples. Clear instructions (60%) and simple collection kits (73%) were donation facilitators while challenges included difficult stool collection kits (16%) and inconveniently located FedEx centers (16%). Recommendations to encourage future biorepository donation were to clarify benefits to science and others (58%), provide commensurate incentives (25%), explain purpose (19%) and privacy protections (20%), and assure ease in sample collection (19%). Conclusion: Study findings suggest the need for biomarker research awareness campaigns. Researchers planning for future biomarker studies in medically underserved regions, like Appalachia, may be able to apply findings to optimize enrollment.

[Characteristics of cardiologist training in Latin America: a survey of the Interamerican Society of Cardiology]. / Características de la formación de los cardiólogos en América Latina: una encuesta de la Sociedad Interamericana de Cardiología.

Objectives: Describe the characteristics of the different cardiology medical residencies in Latin America. Method: Cross-sectional study that aims to evaluate the characteristics of cardiology residencies in Spanish-speaking countries of Latin America, through self-administered electronic surveys. Results: Three hundred seven residents of 147 residences were surveyed. Mean age was 31 years and 63% were male. Ninety eight percent carry out their training in the capital city. The average total training time is 4.8 years. Forty four percent complete their residency in internal medicine prior to starting cardiology, and 10% have no prior training. In cardiology training is 3 years in most countries. Fifty four percent present academic activities every day and 16% only once or less, consisting of theoretical classes (93%), clinical cases (85%), bibliographic workshops (69%), and writing scientific papers (68%). Supervision is carried out by the chief resident (45%), resident coordinator (44%), resident instructor (27%) or the department head (54%), while 2.6% do not present supervision. The main rotations were echocardiography (99%), hemodynamics (96%), coronary unit (93%), and electrophysiology (92%). Residents highlighted the need to improve academic activities (23%) and scientific production (12%). Conclusions: There are important differences in the academic and practical training between the residences of the different countries of America.

Objetivos: Describir las características de las diferentes residencias médicas de cardiología de Latinoamérica. Método: Estudio de corte transversal que tiene como objetivo evaluar las características de las residencias de cardiología en países hispanohablantes de América Latina, mediante encuestas electrónicas autoadministradas. Resultados: Se encuestó a 307 residentes de 147 residencias. La mediana de edad fue 31 años y el 63% era de sexo masculino. El 98% realiza su formación en la ciudad capital. El tiempo de formación total promedio es de 4.8 años. El 44% realiza la residencia completa en medicina interna previo al inicio de cardiología, y el 10% no tiene formación previa. En cardiología la formación es de tres años en la mayoría de los países. El 54% presenta actividades académicas todos los días y el 16% solo una vez o menos, consistente en clases teóricas (93%), casos clínicos (85%), ateneos bibliográficos (69%) y redacción de trabajos científicos (68%). La supervisión es realizada por el jefe de residentes (45%), coordinador de residentes (44%), instructor de residentes (27%) o el jefe de servicio (54%), mientras que el 2.6% no presenta supervisión. Las rotaciones principales fueron ecocardiografía (99%), hemodinamia (96%), unidad coronaria (93%) y electrofisiología (92%). El 23% resaltó la necesidad de mejorar las actividades académicas y 12% la producción científica. Conclusiones: Existen importantes diferencias en la formación académica y práctica entre las residencias de los diferentes países de América.