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1.
ANZ J Surg ; 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38553885

RESUMEN

Evaluation is a vital part of any learning activity and is essential to optimize and improve educational programmes. It should be considered and prioritized prior to the implementation of any learning activity. However, comprehensive programme evaluation is rarely conducted, and there are numerous barriers to high-quality evaluation. This review provides a framework for conducting outcome evaluation of simulation-based education programmes in low and middle-income countries (LMICs). The basis of evaluation, including core ideas of theory, purpose and structure are outlined, followed by an examination of the levels and healthcare applications of the Kirkpatrick model of evaluation. Then, methods of conducting evaluation of simulation-based education in LMICs are discussed through the lens of a successful surgical simulation programme in Myanmar, a lower-middle-income country. The programme involved the evaluation of 11 courses over 4 years in Myanmar and demonstrated evaluation at the highest level of the Kirkpatrick model. Reviewing this programme provides a bridge between evaluation theory and practical implementation. A range of evaluation methods are outlined, including surveys, interviews, and clinical outcome measurement. The importance of a mixed-methods approach, enabling triangulation of quantitative and qualitative analysis, is highlighted, as are methods of analysing data, including statistical and thematic analysis. Finally, issues and challenges of conducting evaluation are considered, as well as strategies to overcome these barriers. Ultimately, this review informs readers about evaluation theory and methods, grounded in a practical application, to enable other educators in low-resource settings to evaluate their own activities.

2.
Conserv Biol ; 38(1): e14108, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37144480

RESUMEN

Identifying locations of refugia from the thermal stresses of climate change for coral reefs and better managing them is one of the key recommendations for climate change adaptation. We review and summarize approximately 30 years of applied research focused on identifying climate refugia to prioritize the conservation actions for coral reefs under rapid climate change. We found that currently proposed climate refugia and the locations predicted to avoid future coral losses are highly reliant on  excess heat metrics, such as degree heating weeks. However, many existing alternative environmental, ecological, and life-history variables could be used to identify other types of refugia that lead to the desired diversified portfolio for coral reef conservation. To improve conservation priorities for coral reefs, there is a need to evaluate and validate the predictions of climate refugia with long-term field data on coral abundance, diversity, and functioning. There is also the need to identify and safeguard locations displaying resistance toprolonged exposure to heat waves and the ability to recover quickly after thermal exposure. We recommend using more metrics to identify a portfolio of potential refugia sites for coral reefs that can avoid, resist, and recover from exposure to high ocean temperatures and the consequences of climate change, thereby shifting past efforts focused on avoidance to a diversified risk-spreading portfolio that can be used to improve strategic coral reef conservation in a rapidly warming climate.


Diversificación de los tipos de refugio necesarios para asegurar el futuro de los arrecifes de coral sujetos al cambio climático Resumen Una de las principales recomendaciones para la adaptación al cambio climático es identificar los refugios de los arrecifes de coral frente al estrés térmico del cambio climático y mejorar su gestión. Revisamos y resumimos ∼30 años de investigación aplicada centrada en la identificación de refugios climáticos para priorizar las acciones de conservación de los arrecifes de coral bajo un rápido cambio climático. Descubrimos que los refugios climáticos propuestos actualmente y las ubicaciones que pueden evitarlos dependen en gran medida de métricas de exceso de calor, como las semanas de calentamiento en grados (SCG). Sin embargo, existen muchas variables alternativas de historia vital, ambientales y ecológicas que podrían utilizarse para identificar otros tipos de refugios que resulten en el acervo diversificado que se desea para la conservación de los arrecifes de coral. Para mejorar las prioridades de conservación de los arrecifes de coral, es necesario evaluar y validar las predicciones sobre refugios climáticos con datos de campo a largo plazo sobre abundancia, diversidad y funcionamiento de los corales. También es necesario identificar y salvaguardar lugares que muestren resistencia a la exposición climática prolongada a olas de calor y la capacidad de recuperarse rápidamente tras la exposición térmica. Recomendamos utilizar más métricas para identificar un acervo de posibles lugares de refugio para los arrecifes de coral que puedan evitar, resistir y recuperarse de la exposición a las altas temperaturas oceánicas y las consecuencias del cambio climático, para así desplazar los esfuerzos pasados centrados en la evitación hacia un acervo diversificado de riesgos que pueda utilizarse para mejorar la conservación estratégica de los arrecifes de coral en un clima que se calienta rápidamente.


Asunto(s)
Antozoos , Arrecifes de Coral , Animales , Ecosistema , Refugio de Fauna , Cambio Climático , Conservación de los Recursos Naturales
3.
Conserv Biol ; 37(6): e14156, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37728514

RESUMEN

Understanding the relative effectiveness and enabling conditions of different area-based management tools is essential for supporting efforts that achieve positive biodiversity outcomes as area-based conservation coverage increases to meet newly set international targets. We used data from a coastal social-ecological monitoring program in 6 Indo-Pacific countries to analyze whether social, ecological, and economic objectives and specific management rules (temporal closures, fishing gear-specific, species-specific restrictions) were associated with coral reef fish biomass above sustainable yield levels across different types of area-based management tools (i.e., comparing those designated as marine protected areas [MPAs] with other types of area-based management). All categories of objectives, multiple combinations of rules, and all types of area-based management had some sites that were able to sustain high levels of reef fish biomass-a key measure for coral reef functioning-compared with reference sites with no area-based management. Yet, the same management types also had sites with low biomass. As governments advance their commitments to the Kunming-Montreal Global Biodiversity Framework and the target to conserve 30% of the planet's land and oceans by 2030, we found that although different types of management can be effective, most of the managed areas in our study regions did not meet criteria for effectiveness. These findings underscore the importance of strong management and governance of managed areas and the need to measure the ecological impact of area-based management rather than counting areas because of their designation.


Efectos de las reglas y objetivos de manejo sobre los resultados de conservación marina Resumen Es esencial entender la efectividad relativa y las condiciones habilitantes de las diferentes herramientas de manejo basadas en el área para respaldar los esfuerzos que brindan resultados positivos para la biodiversidad conforme aumenta la cobertura de la conservación basada en el área para alcanzar los objetivos internacionales recién establecidos. Usamos los datos de un programa de monitoreo socioeconómico costero en seis países del Indo-Pacífico para analizar si los objetivos sociales, ecológicos y económicos y las reglas específicas de manejo (cierres temporales, restricciones de equipo de pesca, vedas de especies) se asociaban con la biomasa de los peces de arrecife de coral por encima de los niveles de producción sustentable en diferentes tipos de herramientas de manejo basadas en el área (es decir, comparar aquellas designadas como áreas marinas protegidas[AMP] con otros tipos de manejo basado en el área). Todas las categorías de objetivos, las múltiples combinaciones de reglas y todos los tipos de manejo basado en el área tuvieron algunos sitios capaces de mantener los niveles altos de biomasa de peces de arrecife-una medida importante para el funcionamiento de los arrecifes-en comparación con los sitios de referencia sin manejo basado en el área. Sin embargo, los mismos tipos de manejo también tuvieron sitios con baja biomasa. Conforme los gobiernos avanzan en sus compromisos con el Marco Global de Biodiversidad de Kunming-Montreal y hacia el objetivo de conservar el 30% del suelo y los océanos del planeta para el 2030, descubrimos que, aunque diferentes tipos de manejo pueden ser efectivos, la mayoría de las áreas manejadas en nuestras regiones de estudio no cumplieron con los criterios de efectividad. Este descubrimiento enfatiza la importancia de una gestión y un gobierno sólidos de las áreas manejadas y la necesidad de medir el impacto ecológico del manejo basado en el área en lugar de contar las áreas por su designación.


Asunto(s)
Biodiversidad , Conservación de los Recursos Naturales , Animales , Arrecifes de Coral , Océanos y Mares , Peces
4.
BMC Proc ; 17(Suppl 5): 12, 2023 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-37488551

RESUMEN

The World Health Assembly resolution 68.15 recognised emergency and essential surgery as a critical component of universal health coverage. The first session of the three-part virtual meeting series on Strategic Planning to Improve Surgical, Obstetric, Anaesthesia, and Trauma Care in the Asia-Pacific Region focused on the current status of surgical care and opportunities for improvement. During this session, Ministries of Health and World Health Organization (WHO) Regional Directors shared country- and regional-level progress in surgical system strengthening. The WHO Western Pacific Regional Office (WPRO) has developed an Action Framework for Safe and Affordable Surgery, whilst the WHO South-East Asia Regional Office (SEARO) highlighted their efforts in emergency obstetric care, workforce strengthening, and blood safety. Numerous countries have begun developing and implementing National Surgical, Obstetric, and Anaesthesia Plans (NSOAPs). Participants agreed surgical system strengthening is an integral component of universal health coverage, pandemic preparedness, and overall health system resilience. Participants discussed common challenges, such as the COVID-19 pandemic, climate change, workforce capacity building, and improving access for hard-to-reach populations. They generated and shared common solutions, including strengthening surgical care capacity in first-level hospitals, anaesthesia task-shifting, remote training, and integrating surgical care with public health, preventive care, and emergency preparedness. Moving forward, participants committed to developing and implementing NSOAPs and agreed on the need to raise political awareness, build a broad-based movement, and form intersectoral collaborations.

5.
Lancet Reg Health West Pac ; 39: 100830, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37484709

RESUMEN

Background: Pacific Island Countries (PICs) face unique challenges in providing surgical care. We assessed the surgical care capacity of five PICs to inform the development of National Surgical, Obstetric and Anaesthesia Plans (NSOAP). Methods: We conducted a cross-sectional survey of 26 facilities in Fiji, Tonga, Vanuatu, Cook Islands, and Palau using the World Health Organization - Program in Global Surgery and Social Change Surgical Assessment Tool. Findings: Eight referral and 18 first-level hospitals containing 39 functioning operating theatres, 41 post-anaesthesia care beds, and 44 intensive care unit beds served a population of 1,321,000 across the five countries. Most facilities had uninterrupted access to electricity, water, internet, and oxygen. However, CT was only available in 2/8 referral hospitals, MRI in 1/8, and timely blood transfusions in 4/8. The surgical, obstetric, and anaesthetist specialist density per 100,000 people was the highest in Palau (49.7), followed by Cook Islands (22.9), Tonga (9.9), Fiji (7.1), and Vanuatu (5.0). There were four radiologists and 3.5 pathologists across the five countries. Surgical volume per 100,000 people was the lowest in Vanuatu (860), followed by Fiji (2,247), Tonga (2,864), Cook Islands (6,747), and Palau (8,606). The in-hospital peri-operative mortality rate (POMR) was prospectively monitored in Tonga and Cook Islands but retrospectively measured in other countries. POMR was below 1% in all five countries. Interpretation: Whilst PICs share common challenges in providing specialised tertiary services, there is substantial diversity between the countries. Strategies to strengthen surgical systems should incorporate both local contextualisation within each PIC and regional collaboration between PICs. Funding: None.

6.
Artículo en Inglés | MEDLINE | ID: mdl-37093871

RESUMEN

ABSTRACT: Sudden cardiac death (SCD) is defined as death from cardiac causes with loss of consciousness occurring within 1 hour of a change in cardiovascular status. As subset, SCD associated with physical exertion (SCD/E) can be defined as a cardiac event whose symptoms start during or within 1 hour of physical exertion. The US military represents a unique opportunity for studying SCD/E because of medical screening at recruitment, mandatory physical training, an active surveillance system, and centralized autopsy services. Because of medical screening, recruits are presumed healthy, but significant conditions can go undetected. We present 4 diverse cases of SCD/E in the military setting. Sudden cardiac death associated with physical exertion is often the first indication of a serious occult cardiac pathology. Postmortem genetic testing revealed a causative pathogenic mutation in 1 of 4 cases, enabling genetic testing of family members to prevent similar catastrophic loss of life, underscoring the importance of postmortem evaluation including genetic testing. Further investigations will help direct screening and prevention to capture those at risk for SCD. The cases presented in this series are a sample of the diverse etiologies and contexts surrounding SCD/E in the military setting that have been captured by Armed Forces Medical Examiner System.

7.
Glob Chang Biol ; 28(16): 4751-4764, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35451154

RESUMEN

Recent warm temperatures driven by climate change have caused mass coral bleaching and mortality across the world, prompting managers, policymakers, and conservation practitioners to embrace restoration as a strategy to sustain coral reefs. Despite a proliferation of new coral reef restoration efforts globally and increasing scientific recognition and research on interventions aimed at supporting reef resilience to climate impacts, few restoration programs are currently incorporating climate change and resilience in project design. As climate change will continue to degrade coral reefs for decades to come, guidance is needed to support managers and restoration practitioners to conduct restoration that promotes resilience through enhanced coral reef recovery, resistance, and adaptation. Here, we address this critical implementation gap by providing recommendations that integrate resilience principles into restoration design and practice, including for project planning and design, coral selection, site selection, and broader ecosystem context. We also discuss future opportunities to improve restoration methods to support enhanced outcomes for coral reefs in response to climate change. As coral reefs are one of the most vulnerable ecosystems to climate change, interventions that enhance reef resilience will help to ensure restoration efforts have a greater chance of success in a warming world. They are also more likely to provide essential contributions to global targets to protect natural biodiversity and the human communities that rely on reefs.


Asunto(s)
Antozoos , Arrecifes de Coral , Animales , Antozoos/fisiología , Cambio Climático , Conservación de los Recursos Naturales , Ecosistema , Humanos
8.
JMIR Res Protoc ; 11(3): e35700, 2022 Mar 23.
Artículo en Inglés | MEDLINE | ID: mdl-35319467

RESUMEN

BACKGROUND: Posttransplant metabolic syndrome (PTMS) is a common contributor to morbidity and mortality among solid organ transplant recipients in the late posttransplant period (≥1 year). Patients diagnosed with PTMS are at a higher risk of cardiovascular disease and frequently experience decreased physical function and health-related quality of life (HRQL). Studies in the early posttransplant period (<1 year) have shown the benefits of facility-based exercise training on physical function and HRQL, but have not evaluated the effects on metabolic risk factors. It remains unclear whether home-based exercise programs are feasible and can be delivered at a sufficient exercise dose to have effects on PTMS. This protocol outlines the methodology of a randomized controlled trial of a partly supervised home-based exercise program in lung transplant (LTx) and orthotopic liver transplant (OLT) recipients. OBJECTIVE: This study aims to evaluate the feasibility (ie, recruitment rate, program adherence, attrition, safety, and participant satisfaction) of a 12-week individualized, home-based aerobic and resistance training program in LTx and OLT recipients initiated 12 to 18 months after transplantation, and to assess estimates of intervention efficacy on metabolic risk factors, exercise self-efficacy, and HRQL. METHODS: In total, 20 LTx and 20 OLT recipients with ≥2 cardiometabolic risk factors at 12 to 18 months after transplantation will be randomized to an intervention (home-based exercise training) or control group. The intervention group will receive an individualized exercise prescription comprising aerobic and resistance training, 3 to 5 times a week for 12 weeks. Participants will meet on a weekly basis (via videoconference) with a qualified exercise professional who will supervise exercise progression, provide support, and support exercise self-efficacy. Participants in both study groups will receive a counseling session on healthy eating with a dietitian at the beginning of the intervention. For the primary aim, feasibility will be assessed through recruitment rate, program adherence, satisfaction, attrition, and safety parameters. Secondary outcomes will be measured at baseline and 12 weeks, including assessments of metabolic risk factors (ie, insulin resistance, abdominal obesity, blood pressure, and cholesterol), HRQL, and exercise self-efficacy. Descriptive statistics will be used to summarize program feasibility and effect estimates (means and 95% CIs) for sample size calculations in future trials. RESULTS: Enrollment started in July 2021. It is estimated that the study period will be 18 months, with data collection to be completed by December 2022. CONCLUSIONS: A partly supervised home-based, individually tailored exercise program that promotes aerobic and resistance training and exercise self-efficacy may be an important intervention for improving the metabolic profile of LTx and OLT recipients with cardiometabolic risk factors. Thus, characterizing the feasibility and effect estimates of home-based exercise constitutes the first step in developing future clinical trials designed to reduce the high morbidity associated with PTMS. TRIAL REGISTRATION: ClinicalTrials.gov NCT04965142; https://clinicaltrials.gov/ct2/show/NCT04965142. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/35700.

9.
Am J Forensic Med Pathol ; 43(3): 249-252, 2022 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-35315374

RESUMEN

ABSTRACT: Autoerotic death is defined as an accidental death that occurs when some type of apparatus is used to enhance sexual stimulation and causes an unintended death. We present the case of an atypical autoerotic death of a 23-year-old man found deceased in a bathroom. An electrical cord with a standard wall plug on one end and exposed wires twisted into loops on the other end was on the floor near his body. Minute black burns were present on each nipple. The outlet was protected by a ground fault circuit interrupter that was demonstrated to be in working order. An electrical consultant concluded that the cause of death could not be electrocution. Ground fault circuit interrupters work by detecting differences in current within a circuit. If a ground fault occurs, the circuit is broken to prevent a fatal electrocution. In the present case, the ground fault circuit interrupter did not shut off because the decedent had wired himself in parallel with the circuit. This, with the other scene findings, indicated this to be a case of atypical autoerotic death. Autoerotic deaths by means other than asphyxiation are rare. This case serves to illustrate the circumstances of an atypical autoerotic death by means of electrocution.


Asunto(s)
Trastornos Parafílicos , Adulto , Asfixia/etiología , Humanos , Masculino , Trastornos Parafílicos/complicaciones , Adulto Joven
10.
Lancet Reg Health West Pac ; 22: 100407, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35243461

RESUMEN

Five billion people lack access to surgical care worldwide; climate change is the biggest threat to human health in the 21st century. This review studies how climate change could be integrated into national surgical planning in the Western Pacific region. We searched databases (PubMed, Web of Science, and Global Health) for articles on climate change and surgical care. Findings were categorised using the modified World Health Organisation Health System Building Blocks Framework. 220 out of 2577 records were included. Infrastructure: Operating theatres are highly resource-intensive. Their carbon footprint could be reduced by maximising equipment longevity, improving energy efficiency, and renewable energy use. Service delivery Tele-medicine, outreaches, and avoiding desflurane could reduce emissions. Robust surgical systems are required to adapt to the increasing burden of surgically treated diseases, such as injuries from natural disasters. Finance: Climate change adaptation funds could be mobilised for surgical system strengthening. Information systems: Sustainability should be a key performance indicator for surgical systems. Workforce: Surgical providers could change clinical, institutional, and societal practices. Governance: Planning in surgical care and climate change should be aligned. Climate change mitigation is essential in the regional surgical care scale-up; surgical system strengthening is also necessary for adaptation to climate change.

11.
Conserv Biol ; 36(3): e13866, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34811801

RESUMEN

Localized stressors compound the ongoing climate-driven decline of coral reefs, requiring natural resource managers to work with rapidly shifting paradigms. Trait-based adaptive management (TBAM) is a new framework to help address changing conditions by choosing and implementing management actions specific to species groups that share key traits, vulnerabilities, and management responses. In TBAM maintenance of functioning ecosystems is balanced with provisioning for human subsistence and livelihoods. We first identified trait-based groups of food fish in a Pacific coral reef with hierarchical clustering. Positing that trait-based groups performing comparable functions respond similarly to both stressors and management actions, we ascertained biophysical and socioeconomic drivers of trait-group biomass and evaluated their vulnerabilities with generalized additive models. Clustering identified 7 trait groups from 131 species. Groups responded to different drivers and displayed divergent vulnerabilities; human activities emerged as important predictors of community structuring. Biomass of small, solitary reef-associated species increased with distance from key fishing ports, and large, solitary piscivores exhibited a decline in biomass with distance from a port. Group biomass also varied in response to different habitat types, the presence or absence of reported dynamite fishing activity, and exposure to wave energy. The differential vulnerabilities of trait groups revealed how the community structure of food fishes is driven by different aspects of resource use and habitat. This inherent variability in the responses of trait-based groups presents opportunities to apply selective TBAM strategies for complex, multispecies fisheries. This approach can be widely adjusted to suit local contexts and priorities.


Grupos de Atributos como Entidades de Manejo en una Pesquería de Arrecife Compleja y Multiespecie Resumen Los estresantes localizados agravan la continua declinación de los arrecifes de coral causada por el clima, lo que requiere que los administradores de recursos naturales trabajen con paradigmas en constante cambio. El manejo adaptativo basado en caracteres (TBAM, en inglés) es un marco de trabajo nuevo que ayuda a enfrentar las condiciones cambiantes mediante la selección e implementación de acciones de manejo específicas para grupos de especies que comparten atributos, vulnerabilidades y respuestas al manejo esenciales. En el TBAM, el mantenimiento de los ecosistemas funcionales está balanceado con el suministro para la subsistencia humana. Identificamos mediante un agrupamiento jerárquico los grupos basados en atributos de peces para la alimentación en un arrecife de coral del Pacífico. Al plantear que los grupos basados en atributos que desempeñan funciones comparables responden similarmente a los estresantes y las acciones de manejo, determinamos los impulsores biofísicos y socioeconómicos de la biomasa de un grupo de atributos y evaluamos sus vulnerabilidades mediante modelos aditivos generalizados. Identificamos siete grupos de atributos a partir de 131 especies. Los grupos respondieron a diferentes impulsores y desplegaron vulnerabilidades divergentes; las actividades humanas aparecieron como predictores importantes de la estructuración de la comunidad. La biomasa de las especies solitarias asociadas al arrecife incrementó con la distancia desde puertos importantes de pesca y los piscívoros solitarios de gran tamaño exhibieron una declinación en la biomasa junto con la distancia desde un puerto. La biomasa de los grupos también varió en respuesta a los diferentes tipos de hábitat, la presencia o ausencia reportada de actividad pesquera con dinamita y la exposición a la energía del oleaje. Las vulnerabilidades diferenciales de los grupos de atributos revelaron cómo la estructura de la comunidad de peces para la alimentación está impulsada por aspectos diferentes del uso de recursos y del hábitat. Esta variabilidad inherente en las respuestas de los grupos basados en atributos presenta la oportunidad de aplicar estrategias selectivas de manejo basado en atributos en las pesquerías complejas y multiespecie. Este enfoque puede ajustarse abiertamente para adaptarse a los contextos y las prioridades locales.


Asunto(s)
Ecosistema , Explotaciones Pesqueras , Animales , Biomasa , Conservación de los Recursos Naturales , Arrecifes de Coral , Peces
12.
Anal Chem ; 94(2): 1060-1069, 2022 01 18.
Artículo en Inglés | MEDLINE | ID: mdl-34962767

RESUMEN

Characterization of mucin-type O-glycans linked to serine/threonine of glycoproteins is technically challenging, in part, due to a lack of effective enzymatic tools that enable their analysis. Recently, several O-glycan-specific endoproteases that can cleave the protein adjacent to the appended glycan have been described. Despite significant progress in understanding the biochemistry of these enzymes, known O-glycoproteases have specificity constraints, such as inefficient cleavage of glycoproteins bearing sialylated O-glycans, high selectivity for certain types of glycoproteins, or protein sequence bias. These factors limit their analytical application. In this study, we examined the capabilities of an immunomodulating metalloprotease (IMPa) from Pseudomonas aeruginosa. Peptide sequence selectivity and its impact on IMPa activity were interrogated using an array of synthetic peptides and their glycoforms. We show that IMPa has no specific P1 residue preference and can tolerate most amino acids at the P1 position, except aspartic acid. The enzyme does not cleave between two adjacent O-glycosites, indicating that O-glycosylated serine/threonine is not allowed at position P1. Glycopeptides with as few as two amino acids on either side of an O-glycosite were cleaved by IMPa. Finally, IMPa efficiently cleaved peptides and proteins carrying sialylated and asialylated O-glycans of varying complexity. We present the use of IMPa in a one-step O-glycoproteomic workflow for glycoprofiling of the purified glycoproteins granulocyte colony-stimulating factor and receptor-type tyrosine-protein phosphatase C without the need for glycopeptide enrichment. In these examples, IMPa enabled both the identification of O-glycosites and the range of complex O-glycan structures at each site.


Asunto(s)
Glicopéptidos , Espectrometría de Masas en Tándem , Glicopéptidos/química , Glicoproteínas/química , Glicosilación , Polisacáridos
14.
Methods Mol Biol ; 2271: 273-280, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33908014

RESUMEN

The use of sequential exoglycosidase digestion of oligosaccharides followed by LC-FLD, LC-MS or CE analysis provides detailed carbohydrate structural information. Highly specific exoglycosidases cleave monosaccharides from the nonreducing end of an oligosaccharide and yield information about the linkage, stereochemistry and configuration of the anomeric carbon. Here we use combinations of exoglycosidases to precisely characterize glycans on the Fc domain of therapeutic antibodies and dimeric fusion proteins. The workflow described includes glycan release with Rapid™ PNGase F (NEB #P0710), direct labeling of released glycans with procainamide (PCA) or 2-aminobenzamide (2AB), cleanup of labeled glycans and a 3 h enzymatic digestion with exoglycosidases. This protocol is designed for completion within an 8 h time frame to allow for subsequent LC-FLD, LC-MS, or CE analysis overnight.


Asunto(s)
Anticuerpos Monoclonales/análisis , Glicoproteínas/análisis , Glicósido Hidrolasas/metabolismo , Péptido-N4-(N-acetil-beta-glucosaminil) Asparagina Amidasa/metabolismo , Polisacáridos/análisis , Procesamiento Proteico-Postraduccional , Conformación de Carbohidratos , Cromatografía Líquida de Alta Presión , Colorantes Fluorescentes/química , Fluorometría , Glicosilación , Hidrólisis , Espectrometría de Masas , Procainamida/química , Proteínas Recombinantes de Fusión/análisis , Proyectos de Investigación , Especificidad por Sustrato , Flujo de Trabajo , ortoaminobenzoatos/química
15.
Pediatrics ; 147(5)2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33911029

RESUMEN

BACKGROUND AND OBJECTIVES: Presence of a syndrome (or association) is predictive of poor survival in esophageal atresia (EA). However, most reports rely on historical patient outcomes, limiting their usefulness when estimating risk for neonates born today. We hypothesized improved syndromic EA survival due to advances in neonatal care. METHODS: A retrospective single-center review of survival in 626 consecutive patients with EA from 1980 to 2017 was performed. Data were collected for recognized risk factors: preterm delivery; birth weight <1500 g; major cardiac disease; vertebral defects, anal atresia, cardiac defects, tracheoesophageal fistula, renal anomalies, and limb abnormalities (VACTERL); and non-VACTERL syndromes. Cox proportional hazards regression models were used to evaluate temporal trends in survival with respect to year of birth and syndromic EA. RESULTS: Overall, 87% of 626 patients with EA survived, ranging from 82% in the 1980s to 91% in the 2010s. After adjusting for confounders, syndromic EA survival did not improve during the study, with no association found between year of birth and survival (hazard ratio [HR] 0.98, 95% confidence interval [CI]: 0.95-1.01). Aside from lethal non-VACTERL syndromes, patients with nonlethal non-VACTERL syndromes (HR 6.85, 95% CI: 3.50-13.41) and VACTERL syndrome (HR 3.02, 95% CI: 1.66-5.49) had a higher risk of death than those with nonsyndromic EA. CONCLUSIONS: Survival of patients with syndromic EA has not improved, and patients with non-VACTERL syndromes have the highest risk of death. Importantly, this is independent of syndrome lethality, birth weight, and cardiac disease. This contemporary survival assessment will enable more accurate perinatal counseling of parents of patients with syndromic EA.


Asunto(s)
Atresia Esofágica/mortalidad , Femenino , Humanos , Recién Nacido , Masculino , Estudios Retrospectivos , Tasa de Supervivencia/tendencias , Síndrome
16.
J Environ Manage ; 277: 111384, 2021 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-33059325

RESUMEN

Climate change is causing the decline of coral reef ecosystems globally. Recent research highlights the importance of reducing CO2 emissions in combination with implementing local management actions to support reef health and recovery, particularly actions that protect sites which are more resilient to extreme events. Resilience assessments quantify the ecological, social, and environmental context of reefs through the lens of resilience, i.e., the capacity of a system to absorb or withstand stressors such that the system maintains its structure and functions and has the capacity to adapt to future disturbances and changes. Resilience assessments are an important tool to help marine managers and decision makers anticipate changes, identify areas with high survival prospects, and prioritize management actions to support resilience. While being widely implemented, however, there has not yet been an evaluation of whether resilience assessments have informed coral reef management. Here, we assess the primary and gray literature and input from coral reef managers to map where resilience assessments have been conducted. We explore if and how they have been used to inform management actions and provide recommendations for improving the likelihood that resilience assessments will result in management actions and positive conservation outcomes. These recommendations are applicable to other ecosystems in which resilience assessments are applied and will become increasingly important as climate impacts intensify and reduce the window of opportunity for protecting natural ecosystems.


Asunto(s)
Antozoos , Arrecifes de Coral , Animales , Cambio Climático , Conservación de los Recursos Naturales , Ecosistema , Probabilidad
17.
Surg Case Rep ; 6(1): 312, 2020 Dec 08.
Artículo en Inglés | MEDLINE | ID: mdl-33289853

RESUMEN

BACKGROUND: Ehlers-Danlos syndrome (EDS) type IV is a rare subtype of EDS, but has important surgical implications. Case presentation Here, we present a case of a spontaneous sigmoid perforation in a 14-year-old boy. He was initially treated with laparotomy, oversew of the sigmoid perforation and a diverting ileostomy. He developed a complete wound dehiscence and enteroatmospheric fistulae. These were managed with a combination of negative pressure wound therapy and Eakin (TG Eakin™) pouch changes. We discuss the clinical features and presentation of EDS type IV, the surgical implications of managing patients with the condition, and the challenges in management of enteroatmospheric fistulae in children. CONCLUSIONS: Ehlers-Danlos syndrome type IV should be considered as a cause of any spontaneous colonic perforation in children.

18.
World J Surg ; 44(12): 3986-3992, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32920705

RESUMEN

PURPOSE: To estimate proportion of Myanmar paediatric population at risk of impoverishment and catastrophic expenditure due to emergency surgical intervention. METHODS: Prospective data were collected at two tertiary surgical centres including income, household expenses, expenses related to surgery. Data analysis was performed to estimate out-of-pocket (OOP) direct medical costs and OOP total costs. Catastrophic expenditure: expense exceeded 10% of household income. Risk of impoverishment: net income drops were below an impoverishment threshold (PPP-purchasing power parity): I$ 2.00 PPP/day, I$ 1.25/day PPP, national poverty line. Distribution of income was estimated using a gamma distribution. Comparison to an adult cohort was performed using Chi-square test with a p value of <0.05 being significant. RESULTS: A total of 145 surveys were collected, and 119 (82.1%) contained sufficient data: Paediatric Centre (n = 99) and Adult Centre (n = 20). Overall average per patient direct medical and non-medical OOP costs was I$493: Centre 1: I$540 PPP (range I$41-6,588 PPP) and Centre 2: I$437 PPP (range I$ 36-1,405 PPP). 64% experienced catastrophic expense. There is no significant difference between the centres in the risks of impoverishment or catastrophic expenditure (p = 0.05). Up to 44% are at risk of catastrophic expenditure should surgery be required. Most of the risk (90%) is derived from direct non-medical costs. A high proportion were at the national poverty line threshold (36.1%). Seeking surgical treatment would imperil up to 37% at the national poverty line threshold, and up to 5.7% at the I$2 PPP per day limit. CONCLUSIONS: A large proportion of the Myanmar population are at risk of impoverishment or catastrophic expenditure should they require surgery. Financial risk protection mechanisms are needed.


Asunto(s)
Enfermedad Catastrófica/economía , Financiación Personal/estadística & datos numéricos , Gastos en Salud/estadística & datos numéricos , Política de Salud/economía , Pobreza/estadística & datos numéricos , Adulto , Niño , Composición Familiar , Femenino , Financiación Personal/economía , Humanos , Mianmar , Embarazo , Estudios Prospectivos , Factores de Riesgo
19.
Ethn Dis ; 30(2): 357-364, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32346282

RESUMEN

Objective: To examine incidence and survival of testicular cancer in New Mexico, overall and separately for border and non-border counties. Methods: Incidence and 5-year survival rates for testicular cancer were obtained from the SEER18 database using the SEER*Stat program following established NCI protocols. Incidence data were compared using Student's t-test. Age-adjusted 5-year survival and Kaplan-Meier method were used to estimate survival. Log-rank tests were used to compare survival for New Mexico to the remaining17 geographical areas of the SEER 18 and for the New Mexico border counties to the New Mexico non-border counties. Odds ratios were used to compare testicular stage at diagnosis. Cox proportional hazards regression was performed to account for race/ethnicity, and border status. Results: From 2000-2015, New Mexico had a testicular cancer incidence rate of 6.3 per 100,000 people, significantly higher than SEER18 (P<.001). The 5-year survival rate in New Mexico did not differ significantly from the SEER18 (P=.3). Border Hispanics had a lower survival rate than border non-Hispanic populations (P=.03). From 2000-2018, New Mexico had a significantly higher proportion of distant cancers than the SEER18 (OR: 1.29, 95% CI: 1.08 to 1.53, P=.005). Conclusions: The higher incidence of testicular cancer in New Mexico does not appear to have a clear explanation based on the current understanding of risk factors; however, the increased incidence in New Mexico does not appear to be associated with increased mortality. The higher proportion of advanced testicular cancers in New Mexico may represent a delay in diagnosis. The increased mortality rate seen in Hispanic border populations may be due in part to barriers to care.


Asunto(s)
Diagnóstico Tardío , Neoplasias Testiculares , Diagnóstico Tardío/prevención & control , Diagnóstico Tardío/estadística & datos numéricos , Hispánicos o Latinos/estadística & datos numéricos , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , New Mexico/epidemiología , Factores de Riesgo , Programa de VERF/estadística & datos numéricos , Tasa de Supervivencia , Neoplasias Testiculares/etnología , Neoplasias Testiculares/patología
20.
J Pediatr Surg ; 55(11): 2329-2334, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32143903

RESUMEN

AIM: To describe the burden of esophageal dilatations in patients following esophageal atresia (EA) repair. METHOD: A retrospective review was performed at The Royal Children's Hospital, Melbourne, of all neonates undergoing operative repair for EA over a 17-year period (1999-2015). Stricture was defined by radiological and/or intra-operative findings of narrowing at the esophageal anastomosis. Data recorded included EA type, perinatal details, operative approach, esophageal anastomosis outcome, dilatation requirement, and survival. Key endpoints were anastomotic leakage and tension, esophageal dilatation technique, dilatation frequency, fundoplication, and complications. RESULTS: During the study period, 287 newborn EA patients were admitted, of which 258 underwent operative repair and survived to primary discharge. Excluding 11 patients with isolated tracheoesophageal fistula, 247 patients were included in the final analysis. Intra-operative anastomotic tension was documented in 41/247 (16.6%), anastomotic leak occurred in 48/247 (19.4%), and fundoplication was performed in 37/247 (15.0%). Dilatations were performed in 149/247 (60.3%). Techniques included bougie-alone (92/149, 61.7%), combination of bougie and balloon (51/149, 34.2%), and balloon-alone (6/149, 4.0%). These patients underwent 1128 dilatations; median number of dilatations per patient was 4 (interquartile range 2-8). Long-gap EA and anastomotic tension were risk factors (p < 0.01) for multiple dilatations. Complications occurred in 13/1128 (1.2%) dilatation episodes: 11/13 esophageal perforation, 2/13 clinically significant aspiration. Perforations were rare events in both balloon (6/287, 2.1%) and bougie dilatations (4/841, 0.5%); one patient had a perforation from guidewire insertion. CONCLUSIONS: Esophageal dilatation occurred in a majority of EA patients. Long-gap EA was associated with an increased burden of esophageal dilatation. Perforations were rare events in balloon and bougie dilatations. TYPE OF STUDY: Original article - retrospective review. LEVEL OF EVIDENCE: II.


Asunto(s)
Dilatación , Atresia Esofágica , Estenosis Esofágica , Esofagoplastia , Anastomosis Quirúrgica , Atresia Esofágica/cirugía , Estenosis Esofágica/epidemiología , Estenosis Esofágica/etiología , Humanos , Recién Nacido , Complicaciones Posoperatorias/epidemiología , Estudios Retrospectivos , Resultado del Tratamiento
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