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1.
Rev. biol. trop ; Rev. biol. trop;72(1): e55265, ene.-dic. 2024. tab, graf
Artículo en Inglés | SaludCR, LILACS | ID: biblio-1559322

RESUMEN

Abstract Introduction: The Wood Thrush is a migratory bird that has experienced dramatic declines in its populations in recent decades. This species overwinters in forest fragments with intermediate levels of habitat modification in Central America. However, more studies detailing the use of remnant forests through time are needed to elucidate the threats this species faces in the wintering grounds. Objective: To understand the effects of environmental and forest structure variables on the occupancy of Wood Thrush in Northern Costa Rica. Methods: The study area was the Área de Conservación Guanacaste (ACG), located in Northern Costa Rica, in December 2016, and during the 2018-2019 migration season. We estimated Wood Thrush occupancy and detection probability in four locations of ACG (dry forest, cloud forest, and two locations in the wet forest) using single-season occupancy models. We also estimated Wood Thrush occupancy and probability of persistence in different months in three vegetation types (open area, secondary forest, and old-growth forest) in the wet forest of ACG using a multi-season occupancy model approach. Results: Wood Thrush occupancy was best described by precipitation in the four locations of the ACG; the probability of occupancy increased with precipitation. The average occupancy of Wood Thrushes varied with vegetation type: open area with shrubs and forest edge (0.69 ± 0.09), secondary forest (0.46 ± 0.1), and old-growth forest (0.61 ± 0.1). Wood Thrush probability of persistence responded partially to changes in precipitation, with an unexpected increase in persistence when the rainfall continued decreasing in the season. Conclusion: Wood Thrush occupancy was best predicted by changes in precipitation considering a larger spatial scale. Its probability of persistence partially varied with precipitation. An increase in persistence closer to Spring migration might be explained by the start of the breeding season of resident birds, potentially reducing territorial conflicts and conserving energy before migration. The long-term protection of wet forests in Northern Costa Rica is of paramount importance for the conservation of Wood Thrushes in their wintering grounds.


Resumen Introducción: El Zorzal del Bosque es un ave migratoria que ha experimentado caídas dramáticas en sus poblaciones en las últimas décadas. Esta especie pasa el invierno en fragmentos de bosque con niveles intermedios de modificación de hábitat en Centroamérica. Sin embargo, se necesitan más estudios que detallen el uso de los bosques remanentes a lo largo del tiempo para dilucidar las amenazas que enfrenta esta especie en las zonas de invernada. Objetivo: Comprender los efectos de variables ambientales y de estructura del bosque en la ocurrencia del Zorzal del Bosque en el Norte de Costa Rica. Métodos: El área de estudio fue el Área de Conservación Guanacaste (ACG), ubicada en el Norte de Costa Rica, en diciembre de 2016, y en la temporada migratoria 2018-2019. Estimamos la ocurrencia y la probabilidad de detección del Zorzal del Bosque en cuatro ubicaciones de ACG (bosque seco, bosque nuboso y dos ubicaciones en el bosque húmedo) utilizando modelos de ocurrencia de una sola temporada. También estimamos la ocurrencia del Zorzal del Bosque y la probabilidad de persistencia en diferentes meses en tres tipos de vegetación (área abierta, bosque secundario y bosque primario) en el bosque húmedo de ACG utilizando un enfoque de modelo de ocurrencia multi-estacional. Resultados: La ocurrencia del Zorzal del Bosque estuvo mejor descrita por la precipitación en las cuatro localidades del ACG; la probabilidad de ocurrencia aumentó con las precipitaciones. La ocurrencia media de zorzales varió con el tipo de vegetación: área abierta con arbustos y borde de bosque (0.69 ± 0.09), bosque secundario (0.46 ± 0.1) y bosque primario (0.61 ± 0.1). La probabilidad de persistencia del zorzal respondió parcialmente a cambios en la precipitación, con un aumento inesperado en la persistencia cuando las precipitaciones continuaron disminuyendo en la temporada. Conclusión: La ocurrecia del Zorzal del Bosque varió con la precipitación considerando una escala espacial mayor. Su probabilidad de persistencia varió parcialmente con la precipitación. Un aumento en la persistencia más cerca de la migración de primavera podría explicarse por el inicio de la temporada de reproducción de las aves residentes, lo que podría reducir los conflictos territoriales y conservar energía antes de la migración. La protección a largo plazo de los bosques húmedos en el norte de Costa Rica es de suma importancia para la conservación de los Zorzales del Bosque en sus zonas de invernada.


Asunto(s)
Animales , Migración Animal , Passeriformes , Estaciones del Año , Costa Rica
2.
Cad. Ibero-Am. Direito Sanit. (Online) ; 13(3): 26-41, jul.-set.2024.
Artículo en Portugués | LILACS | ID: biblio-1571906

RESUMEN

Objetivo: O presente estudo visa a compreender como a judicialização da saúde se desenvolve como um fenômeno global, com ênfase particular nos contextos da América Latina, considerando Brasil e Colômbia. Metodologia: Adotou-se uma metodologia de revisão de literatura apoiada pela ferramenta Preferred Reporting Items for Systematic Reviews and Meta-Analyses. A pesquisa foi conduzida com descritores específicos e as estratégias de busca foram realizadas nas bases de dados PubMed, MEDLINE, Lilacs, SciELO, CRD, CDSR, BVS e BIREME. Foram selecionados artigos publicados entre 2010 e 2024 que discutem a judicialização da saúde, considerando os idiomas português, espanhol ou inglês. Resultados: A busca resultou em 455 artigos e, destes, 18 artigos atenderam aos critérios de inclusão. A análise dos artigos selecionados revela a necessidade de soluções equilibradas que respeitem os direitos individuais sem comprometer a acessibilidade e qualidade dos cuidados de saúde coletivos. São destacados os desafios impostos pela judicialização, como questões de equidade, sustentabilidade financeira dos sistemas de saúde e priorização de recursos. Conclusão: Conclui-se pela importância de uma abordagem multidisciplinar envolvendo ajustes legislativos, melhorias na gestão dos sistemas de saúde, educação para a saúde e a promoção de políticas públicas equitativas.


Objective: The present study aims to understand how the judicialization of health develops as a global phenomenon, with particular emphasis on Latin American contexts, considering Brazil, and Colombia. Methodology: A literature review methodology supported by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses tool was adopted. The research was conducted using specific descriptors, and search strategies were carried out in the PubMed, MEDLINE, Lilacs, SciELO, CRD, CDSR, BVS, and BIREME databases. Articles published between 2010 and 2024 that discuss the judicialization of health, considering Portuguese, Spanish, or English languages, were selected. Results: The search resulted in 455 articles, of which 18 met the inclusion criteria. The analysis of the selected articles reveals the need for balanced solutions that respect individual rights without compromising the accessibility and quality of collective healthcare. The challenges imposed by judicialization are highlighted, such as issues of equity, financial sustainability of health systems, and resource prioritization. Conclusion: It concludes by emphasizing the importance of a multidisciplinary approach involving legislative adjustments, improvements in health system management, health education, and the promotion of equitable public policies.


Objetivo: El presente estudio tiene como objetivo comprender cómo se desarrolla la judicialización de la salud como un fenómeno global, con un énfasis particular en los contextos de América Latina, considerando Brasil y Colombia. Metodología: Se adoptó una metodología de revisión de literatura respaldada por la herramienta Preferred Reporting Items for Systematic Reviews and Meta-Analyses. La investigación se realizó utilizando descriptores específicos y las estrategias de búsqueda se llevaron a cabo en las bases de datos PubMed, MEDLINE, Lilacs, SciELO, CRD, CDSR, BVS y BIREME. Se seleccionaron artículos publicados entre 2010 y 2024 que discuten la judicialización de la salud, considerando los idiomas portugués, español o inglés. Resultados: La búsqueda resultó en 455 artículos, de los cuales 18 cumplieron con los criterios de inclusión. El análisis de los artículos seleccionados revela la necesidad de soluciones equilibradas que respeten los derechos individuales sin comprometer la accesibilidad y la calidad de la atención sanitaria colectiva. Se destacan los desafíos impuestos por la judicialización, como cuestiones de equidad, sostenibilidad financiera de los sistemas de salud y priorización de recursos. Conclusión: Se concluye sobre la importancia de un enfoque multidisciplinario que involucre ajustes legislativos, mejoras en la gestión de los sistemas de salud, educación para la salud y la promoción de políticas públicas equitativas.


Asunto(s)
Derecho Sanitario
3.
Mol Genet Genomic Med ; 12(8): e2504, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39126233

RESUMEN

BACKGROUND: In this article, we delineate a loosely selected cohort comprising patients with a history of early-onset breast cancer and/or a familial occurrence of cancer. The aim of this study was to gain insights into the presence of breast cancer-related gene variants in a population from a micro-region in southern Brazil, specifically the Metropolitan Region of Curitiba. This area exhibits a highly genetically mixed population, mirroring the general characteristics of the Brazilian people. METHODS: Comprehensive next-generation sequencing (NGS) multigene panel testing was conducted on 12 patients from the region, utilizing three different library preparation methods. RESULTS: Two pathogenic variants and one candidate pathogenic variant were identified: BRCA2 c.8878C>T, p.Gln2960Ter; CHEK2 c.1100del, p.Thr367Metfs15, and BRCA2 c.3482dup, p.Asp1161Glufs3. CONCLUSION: BRCA2 c.3482dup, a novel candidate pathogenic variant, previously unpublished, is reported. The prevalence of pathogenic variants in this small cohort is similar to that described in the literature. All different library preparation methods were equally proficient in enabling the detection of these variants.


Asunto(s)
Proteína BRCA2 , Neoplasias de la Mama , Quinasa de Punto de Control 2 , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Proteína BRCA2/genética , Femenino , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Quinasa de Punto de Control 2/genética , Brasil , Persona de Mediana Edad , Adulto , Secuenciación de Nucleótidos de Alto Rendimiento/métodos , Pruebas Genéticas/métodos , Pruebas Genéticas/normas , Predisposición Genética a la Enfermedad
4.
Cien Saude Colet ; 29(8): e03892023, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39140529

RESUMEN

This article aims to examine the effects of weekend admission on in-hospital mortality for patients with acute myocardial infarction (AMI) in Brazil. Information from the Hospital Information System of the Unified Health System (SIH/SUS) of urgently admitted patients diagnosed with acute myocardial infarction (AMI) between 2008 and 2018 was used, made available through the Hospital Admission Authorization (AIH). Multivariable logistic regression models, controlling for observable patient characteristics, hospital characteristics and year and hospital-fixed effects, were used. The results were consistent with the existence of the weekend effect. For the model adjusted with the inclusion of all controls, the chance of death observed for individuals hospitalized on the weekend is 14% higher. Our results indicated that there is probably an important variation in the quality of hospital care depending on the day the patient is hospitalized. Weekend admissions were associated with in-hospital AMI mortality in Brazil. Future research should analyze the possible channels behind the weekend effect to support public policies that can effectively make healthcare equitable.


Asunto(s)
Mortalidad Hospitalaria , Hospitalización , Infarto del Miocardio , Brasil/epidemiología , Humanos , Infarto del Miocardio/mortalidad , Infarto del Miocardio/epidemiología , Masculino , Factores de Tiempo , Femenino , Persona de Mediana Edad , Hospitalización/estadística & datos numéricos , Anciano , Calidad de la Atención de Salud , Programas Nacionales de Salud/organización & administración , Admisión del Paciente/estadística & datos numéricos , Modelos Logísticos , Sistemas de Información en Hospital , Anciano de 80 o más Años
5.
Ciênc. Saúde Colet. (Impr.) ; Ciênc. Saúde Colet. (Impr.);29(8): e03892023, ago. 2024. tab
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1569043

RESUMEN

Abstract This article aims to examine the effects of weekend admission on in-hospital mortality for patients with acute myocardial infarction (AMI) in Brazil. Information from the Hospital Information System of the Unified Health System (SIH/SUS) of urgently admitted patients diagnosed with acute myocardial infarction (AMI) between 2008 and 2018 was used, made available through the Hospital Admission Authorization (AIH). Multivariable logistic regression models, controlling for observable patient characteristics, hospital characteristics and year and hospital-fixed effects, were used. The results were consistent with the existence of the weekend effect. For the model adjusted with the inclusion of all controls, the chance of death observed for individuals hospitalized on the weekend is 14% higher. Our results indicated that there is probably an important variation in the quality of hospital care depending on the day the patient is hospitalized. Weekend admissions were associated with in-hospital AMI mortality in Brazil. Future research should analyze the possible channels behind the weekend effect to support public policies that can effectively make healthcare equitable.


Resumo O objetivo deste artigo é examinar os efeitos da internação no final de semana na mortalidade hospitalar de pacientes com infarto agudo do miocárdio (IAM) no Brasil. Foram utilizadas informações do Sistema de Informação Hospitalar do Sistema Único de Saúde (SIH/SUS) de pacientes internados em urgência com diagnóstico de infarto agudo do miocárdio (IAM) entre 2008 e 2018, disponibilizados por meio da Autorização de Internação Hospitalar (AIH). Foram usados modelos de regressão logística multivariada, controlando as características observáveis ​​do paciente, características do hospital e efeitos fixos de ano e hospital. Os resultados foram consistentes com a existência do efeito fim de semana. Para o modelo ajustado com a inclusão de todos os controles, a chance de óbito observada para indivíduos internados no final de semana é 14% maior. Nossos resultados indicaram que provavelmente existe uma variação importante na qualidade da assistência hospitalar dependendo do dia em que o paciente fica internado. Internações em finais de semana foram associadas à mortalidade por IAM intra-hospitalar no Brasil. Pesquisas futuras devem analisar os possíveis canais por trás do weekend effect para subsidiar políticas públicas que possam efetivamente tornar o atendimento equitativo.

6.
JPEN J Parenter Enteral Nutr ; 48(7): 827-832, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38963146

RESUMEN

BACKGROUND: Among the anthropometric measurements, calf circumference has been widely used as a simple and practical method to diagnose low muscle mass and sarcopenia. However, the association between this measurement and clinical outcomes in people receiving home enteral nutrition is still unknown. Therefore, this study aimed to investigate the association of calf circumference with mortality, discharge from home enteral nutrition, continuity in home enteral nutrition, and new hospitalizations in adult and older adult people. METHODS: This retrospective cohort study used secondary data, including people aged ≥18 years receiving home enteral nutrition. The association between calf circumference and the outcomes of mortality, discharge from home enteral nutrition, and continuity in home enteral nutrition was analyzed using multinomial logistic regression. The association between calf circumference and the occurrence of new hospitalizations was investigated using binary logistic regression. RESULTS: Among the 899 people included in the study, 470 were men (52.3%), the median age was 72 years (interquartile range, 56.5-82), and 850 had inadequate calf circumference (94.5%). As calf circumference increased, the odds of mortality decreased and the probability of discharge from home enteral nutrition and continuity in home enteral nutrition increased. Furthermore, in people with oncologic diagnoses, the odds of new hospitalizations were reduced by 71.9% for each additional centimeter in calf circumference. CONCLUSION: These findings underline the importance of using calf circumference as part of the nutrition assessment because it is a simple, easy, and cost-effective method that can also be used as a tool to predict clinical outcomes.


Asunto(s)
Nutrición Enteral , Servicios de Atención de Salud a Domicilio , Pierna , Humanos , Estudios Retrospectivos , Masculino , Femenino , Anciano , Persona de Mediana Edad , Nutrición Enteral/métodos , Anciano de 80 o más Años , Servicios de Atención de Salud a Domicilio/estadística & datos numéricos , Sarcopenia/mortalidad , Hospitalización/estadística & datos numéricos , Antropometría , Alta del Paciente/estadística & datos numéricos
7.
Sensors (Basel) ; 24(14)2024 Jul 18.
Artículo en Inglés | MEDLINE | ID: mdl-39066062

RESUMEN

Marker-less hand-eye calibration permits the acquisition of an accurate transformation between an optical sensor and a robot in unstructured environments. Single monocular cameras, despite their low cost and modest computation requirements, present difficulties for this purpose due to their incomplete correspondence of projected coordinates. In this work, we introduce a hand-eye calibration procedure based on the rotation representations inferred by an augmented autoencoder neural network. Learning-based models that attempt to directly regress the spatial transform of objects such as the links of robotic manipulators perform poorly in the orientation domain, but this can be overcome through the analysis of the latent space vectors constructed in the autoencoding process. This technique is computationally inexpensive and can be run in real time in markedly varied lighting and occlusion conditions. To evaluate the procedure, we use a color-depth camera and perform a registration step between the predicted and the captured point clouds to measure translation and orientation errors and compare the results to a baseline based on traditional checkerboard markers.

8.
Dent J (Basel) ; 12(7)2024 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-39056989

RESUMEN

Purpose: To evaluate, in vitro, the efficiency of a novel apparatus to test the adherence and penetration of bacteria on different membranes for guided regeneration. Methodology: To create the 3D device, Computer Aided Design/Computer Aided Manufacturing (CAD/CAM) systems were used. Three types of biomaterials were tested (n = 6): (DT) a collagen membrane; (DS) a polymer membrane; and (LP) a dense polytetrafluoroethylene barrier. The biomaterials were adapted to the apparatuses and challenged with two different monospecies bacterial culture of A. actinomycetemcomitans b and S. mutans. After 2 h, bacterial adherence and penetration were quantified by counting the number of colony-forming units (CFUs). Two specimens from each group were used for image analysis using Confocal Laser Scanning Microscopy. Statistical analysis was performed. Findings: The DS group had a higher adherence of S. mutans compared to A. actinomycetemcomitans b (p = 0.05). There was less adherence of A. actinomycetemcomitans b in the DS group, compared to the LP (p = 0.011) and DT (p < 0.001) groups. Only the membranes allowed penetration, which was blocked by barriers. The DT group allowed a greater penetration of S. mutans to occur compared to A. actinomycetemcomitans b (p = 0.009), which showed a higher penetration into the DS membranes compared to S. mutans (p = 0.016). The penetration of A. actinomycetemcomitans b through DS was higher compared to its penetration through DT and LP (p < 0.01 for both). DT and DS allowed a greater penetration of S. mutans to occur compared to LP, which prevented both bacterial species from penetrating. Conclusion: The apparatus allowed for the settlement and complete sealing of the biomaterials, enabling standardization.

9.
Open Vet J ; 14(6): 1384-1393, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-39055759

RESUMEN

Background: There is no evidence of peptides-probiotics symbiosis as supplements in aquafeeds. Aim: To evaluate the effect of peptides and probiotics supplementation via diet on blood parameters and growth performance of juvenile Piaractus brachypomus, an Amazonian fish, during the growth-out phase. Methods: 120 juvenile P. brachypomus (242.77 g) were placed into twelve 200-l tanks (10 fish/tank), housed in an indoor open system with constant water renovation (flow rate:1.50 l/minute). The experiment used a completely randomized design with a 4 × 5 factorial arrangement [4 doses of supplementation (CD: commercial diet; PepD: CD+1.50% of peptides per CD weight; ProD: CD+40.00 ml of activated probiotics per kg of diet (Lactobacillus spp., Rhodopseudomonas spp., Saccharomycetes spp.); PepProD: CD+Pep+Pro); 5 sampling times (zero, second, fourth, sixth, and eighth week); n = 3]. Fish were fed twice a day at a feeding rate of 1% of body weight. At each sampling time, blood was collected and fish were measured for growth performance analysis. Data were analyzed by using two-way ANOVA and Tukey's test (p < 0.05). Results: The values of hematocrit (18.31%), leukocytes (1,216.67 mm3), neutrophils (81.27%), lymphocytes (18.73%), albumin (1.08 g/dl), relative growth rate (1.002%/day), and the Fulton allometric condition factor (2.03) remained constant throughout the experiment (p > 0.05). Plasma glucose decreased for all fish in the second week (59.56 mg/dl); then, that level increased in fish fed with the CD (89.00 mg/dl), while fish fed with PepD, ProD, and PepProD showed constant values (57.22 mg/dl). The plasma protein levels were constant in fish fed with the PepD and PepProD, (p > 0.05), while fish fed with the CD and ProD showed non-constant and higher values. At the end of the trial, fish fed with the PepProD showed the highest weight gain and the lowest feed conversion rate (39.66 g; 0.97). Conclusion: It is possible to maintain the stability of plasma glucose and plasma protein by supplementing diets with peptides, but the peptides-probiotics symbiosis administrated via diet contributes to maintaining the stability of plasma glucose and plasma protein and to improve the growth performance of juvenile P. brachypomus during the growth-out phase.


Asunto(s)
Alimentación Animal , Dieta , Suplementos Dietéticos , Péptidos , Probióticos , Animales , Probióticos/administración & dosificación , Probióticos/farmacología , Alimentación Animal/análisis , Dieta/veterinaria , Péptidos/administración & dosificación , Distribución Aleatoria
10.
Front Vet Sci ; 11: 1384802, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39015105

RESUMEN

This study assessed qualitative and quantitative leukocyte evaluation as potential broiler chicken welfare indicators, contributing to the limited literature on white blood cell (WBC) morphology as a diagnostic tool for welfare. Broiler chicken welfare within four poultry houses (PH) 1 to 4, each on a different farm, was assessed using on-field indicators of affective states and health, and WBC morphology was examined. Affective states were evaluated using the Qualitative Behavior Assessment (QBA), with 25 behavioral expressions scored on a visual analogue scale (VAS) and grouped into two categories. Health indicators included assessments of lameness, footpad dermatitis, dermatitis on the breast and abdominal areas, hock burn, and feather cleaning. Blood samples were collected, differential leukocyte counts were performed, and a cell score was created for the recognition, classification, and interpretation of morphologic diversity of heterophils and lymphocytes. The heterophil to lymphocyte ratio (H/L) was also determined. Descriptive statistics and generalized linear models for binomial responses were used to analyze the results. PH4 differed from the other farms, showing a higher frequency of birds within QBA group 1 ('Attentive'to 'Desperate'), while birds in PH1, PH2, and PH3 were more frequent in QBA group 2 ('Relaxed' to 'Positively occupied'). Elevated proportions of heterophils in birds from PH4 (0.61, CI95%: 0.58; 0.64) and PH3 (0.60, CI95%: 0.57; 0.63) suggested higher stress levels and inflammatory responses. Birds in PH2 and PH4 exhibited higher frequencies of health issues such as dermatitis and lameness, and higher proportions of abnormalities in WBC number and morphology. PH3 and PH4 exhibited higher H/L ratios of 3.03 and 2.58, respectively, consistent with the on-field health and behavioral indicators. Blood samples from birds in PH2 and PH4 showed a proportion of 90% toxic change in heterophils, while in PH1 and PH3 it was 70%, indicating high levels of abnormal WBC morphology across all PHs. The findings emphasize the multifactorial nature of welfare impairments, including environmental conditions, health, and affective states. This highlights the need for indicators that reflect multiple welfare impacts, such as WBC counts and morphological alterations, which can serve as powerful tools in the complex task of assessing animal welfare.

11.
Sci Rep ; 14(1): 16706, 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-39030294

RESUMEN

Paramos, unique and biodiverse ecosystems found solely in the high mountain regions of the tropics, are under threat. Despite their crucial role as primary water sources and significant carbon repositories in Colombia, they are deteriorating rapidly and garner less attention than other vulnerable ecosystems like the Amazon rainforest. Their fertile soil and unique climate make them prime locations for agriculture and cattle grazing, often coinciding with economically critical deposits such as coal which has led to a steady decline in paramo area. Anthropic impact was evaluated using multispectral images from Landsat and Sentinel over 37 years, on the Guerrero and Rabanal paramos in central Colombia which have experienced rapid expansion of mining and agriculture. Our analysis revealed that since 1984, the Rabanal and Guerrero paramos have lost 47.96% and 59.96% of their native vegetation respectively, replaced primarily by crops, pastures, and planted forests. We detected alterations in the spectral signatures of native vegetation near coal coking ovens, indicating a deterioration of paramo health and potential impact on ecosystem services. Consequently, human activity is reducing the extent of paramos and their efficiency as water sources and carbon sinks, potentially leading to severe regional and even global consequences.

12.
Biochem Pharmacol ; 226: 116339, 2024 08.
Artículo en Inglés | MEDLINE | ID: mdl-38848781

RESUMEN

Sleep is a fundamental state for maintaining the organism homeostasis. Disruptions in sleep patterns predispose to the appearance of memory impairments and mental disorders, including depression. Recent pre-clinical studies have highlighted the antidepressant-like properties of the synthetic compound 2-phenyl-3-(phenylselanyl)benzofuran (SeBZF1). To further investigate the neuromodulatory effects of SeBZF1, this study aimed to assess its therapeutic efficacy in ameliorating neurobehavioral impairments induced by sleep deprivation (SD) in mice. For this purpose, a method known as multiple platforms over water was used to induce rapid eye movement (REM) SD. Two hours after acute SD (24 h), male Swiss mice received a single treatment of SeBZF1 (5 mg/kg, intragastric route) or fluoxetine (a positive control, 20 mg/kg, intraperitoneal route). Subsequently, behavioral tests were conducted to assess spontaneous motor function (open-field test), depressive-like behavior (tail suspension test), and memory deficits (Y-maze test). Brain structures were utilized to evaluate oxidative stress markers, monoamine oxidase (MAO) and acetylcholinesterase (AChE) activities. Our findings revealed that SD animals displayed depressive-like behavior and memory impairments, which were reverted by SeBZF1 and fluoxetine treatments. SeBZF1 also reverted the increase in lipoperoxidation levels and glutathione peroxidase activity in the pre-frontal cortex in mice exposed to SD. Besides, the increase in hippocampal AChE activity induced by SD was overturned by SeBZF1. Lastly, cortical MAO-B activity was reestablished by SeBZF1 in mice that underwent SD. Based on the main findings of this study, it can be inferred that the compound SeBZF1 reverses the neurobehavioral alterations induced by sleep deprivation in male Swiss mice.


Asunto(s)
Benzofuranos , Privación de Sueño , Animales , Masculino , Ratones , Privación de Sueño/tratamiento farmacológico , Benzofuranos/farmacología , Benzofuranos/uso terapéutico , Conducta Animal/efectos de los fármacos , Depresión/tratamiento farmacológico , Compuestos de Organoselenio/farmacología , Compuestos de Organoselenio/uso terapéutico , Trastornos de la Memoria/tratamiento farmacológico , Antidepresivos/farmacología , Antidepresivos/uso terapéutico , Aprendizaje por Laberinto/efectos de los fármacos , Estrés Oxidativo/efectos de los fármacos
13.
Neotrop Entomol ; 53(4): 703-714, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38874655

RESUMEN

The leafroller Argyrotaenia sphaleropa (Meyrick) is an important pest of temperate fruits. Its biology and population dynamics are strongly influenced by temperature. In this context, this study aims to select a mathematical model that accurately describes the temperature-dependent development rate of A. sphaleropa and applies this model to predict the impact of climate change on the number of annual generations (voltinism) of the pest in southern Brazil. Nine mathematical models were employed to fit the species' developmental rate at different constant temperatures. Voltinism was projected using climate data from the current period (1994-2013) and projections for 2050 and 2070. The Brière-1 model (D(T) = aT(T-TL)(TH-T)1/2) provided the best fit for the temperature-dependent developmental rate of A. sphaleropa. According to this model, the regions with the highest voltinism under current climatic conditions are the northern and central areas of Paraná, the western and northeastern regions of Santa Catarina, and northwestern Rio Grande do Sul. The model also predicts a rise in A. sphaleropa voltinism as a consequence of climate change, especially in the mountainous regions of Santa Catarina and Rio Grande do Sul, with projected increases of up to 25.1%. These regions encompass most areas where temperate fruits used as hosts by the leafroller are cultivated. This study represents a significant advancement in understanding the implications of global warming on A. sphaleropa voltinism and suggests that forthcoming climatic conditions will likely favor the species across much of southern Brazil.


Asunto(s)
Cambio Climático , Frutas , Brasil , Animales , Modelos Teóricos , Hemípteros , Temperatura , Dinámica Poblacional
14.
Eur J Hum Genet ; 2024 Jun 22.
Artículo en Inglés | MEDLINE | ID: mdl-38909121

RESUMEN

Exome and genome sequencing (ES/GS) are routinely used for the diagnosis of genetic diseases in developed countries. However, their implementation is limited in countries from Latin America. We aimed to describe the results of GS in patients with suspected rare genetic diseases in Colombia. We studied 501 patients from 22 healthcare sites from January to December 2022. GS was performed in the index cases using dried blood spots on filtercards. Ancestry analysis was performed under iAdmix. Multiomic testing was performed when needed (biomarker, enzymatic activity, RNA-seq). All tests were performed at an accredited genetic laboratory. Ethnicity prediction data confirmed that 401 patients (80%) were mainly of Amerindian origin. A genetic diagnosis was established for 142 patients with a 28.3% diagnostic yield. The highest diagnostic yield was achieved for pathologies with a metabolic component and syndromic disorders (p < 0.001). Young children had a median of 1 year of diagnostic odyssey, while the median time for adults was significantly longer (15 years). Patients with genetic syndromes have spent more than 75% of their life without a diagnosis, while for patients with neurologic and neuromuscular diseases, the time of the diagnostic odyssey tended to decrease with age. Previous testing, specifically karyotyping or chromosomal microarray were significantly associated with a longer time to reach a definitive diagnosis (p < 0.01). Furthermore, one out of five patients that had an ES before could be diagnosed by GS. The Colombian genome project is the first Latin American study reporting the experience of systematic use of diagnostic GS in rare diseases.

15.
Braz J Infect Dis ; 28(3): 103768, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38851212

RESUMEN

We report an autochthonous case of mild unifocal chronic pulmonary paracoccidioidomycosis in a 48-year-old previously healthy woman with no history of possible environmental exposures in endemic rural areas, supposedly resulting from reactivation of a latent pulmonary focus secondary to the use of methotrexate for the control of Chikungunya arthropathy. Laboratory investigation ruled out other immunosuppression. Her only symptoms were a dry cough and chest pain. Diagnosis confirmed by needle lung biopsy. There were no abnormalities on physical examination nor evidence of central nervous system involvement. MRI of the total abdomen showed no involvement of other organs. Computed chest tomography showed a favorable evolution under the use of itraconazole (200 mg/day). Different tomographic presentations findings are highlighted when performed before and after treatment. CONCLUSIONS: PCM should be considered even in a woman without a history of consistent environmental exposure and in a non-endemic geographic area.


Asunto(s)
Enfermedades Pulmonares Fúngicas , Metotrexato , Paracoccidioidomicosis , Humanos , Femenino , Paracoccidioidomicosis/tratamiento farmacológico , Persona de Mediana Edad , Metotrexato/uso terapéutico , Metotrexato/efectos adversos , Enfermedades Pulmonares Fúngicas/tratamiento farmacológico , Enfermedad Crónica , Itraconazol/uso terapéutico , Tomografía Computarizada por Rayos X , Antifúngicos/uso terapéutico , Inmunosupresores/efectos adversos , Inmunosupresores/uso terapéutico
17.
MethodsX ; 12: 102762, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38826795

RESUMEN

This article addresses the impact of transient pressure anomalies in hydraulic systems, triggered by the opening or closing of valves or pumps, instantly disturbing the line of hydraulic gradient (LGH). This variation in pressure has significant consequences both in hydraulic and structural terms for water networks. Most of the existing techniques to detect transients in water distribution systems use asynchronous methods, generating timeless information that limits the response capacity in critical situations. Therefore, an automatic transient detection system based on the Internet of Things (IoT) is proposed, capable of identifying overpressure or underpressure pulses in soft real-time, activating alarms to facilitate decision-making. This approach helps maintain the safety of the water distribution system and prevent leaks in the network. Furthermore, a model of the transient behavior of pressure and flow is presented by linearizing the water hammer equations from the Laplace transform, thus generating a transfer function that describes the algebraic relationship between the outlet and inlet of the hydraulic system.•The transient analysis of the hydraulic system prototype underscores its high sensitivity to initial conditions, attributed to turbulence. This observation suggests the possible presence of a dynamic strange attractor related to water hammer phenomena in pressure pipes.•The methodology involving transfer functions and state-space models enables the assessment of how leaks impact the transient responses of the system, including the magnitude, duration, and frequency of disturbances generated by them.•The proposed method introduces a dynamic transfer function capable of identifying instantaneous changes over time in terms of flow and pressure.

18.
Heliyon ; 10(11): e31958, 2024 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-38868046

RESUMEN

Multi-drug resistant ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) are a global health threat. The severity of the problem lies in its impact on mortality, therapeutic limitations, the threat to public health, and the costs associated with managing infections caused by these resistant strains. Effectively addressing this challenge requires innovative approaches to research, the development of new antimicrobials, and more responsible antibiotic use practices globally. Antimicrobial peptides (AMPs) are a part of the innate immune system of all higher organisms. They are short, cationic and amphipathic molecules with broad-spectrum activity. AMPs interact with the negatively charged bacterial membrane. In recent years, AMPs have attracted considerable interest as potential antibiotics. However, AMPs have low bioavailability and short half-lives, which may be circumvented by chemical modification. This review presents recent in vitro and in silico strategies for the modification of AMPs to improve their stability and application in preclinical experiments.

19.
ABCS health sci ; 49: e024210, 11 jun. 2024. tab
Artículo en Inglés | LILACS | ID: biblio-1555524

RESUMEN

INTRODUCTION: The prevalence of anxiety and depression symptoms has significantly increased in Brazil since the beginning of the COVID-19 pandemic. However, the studies investigating the prevalence of these symptoms in school-aged in Brazil are scanty. OBJECTIVE: To identify the prevalence of moderate or severe symptoms of depression and anxiety and the associated factors among students in southern Brazil. METHODS: This was a census study with all 14 sites of the Federal Institute Sul-riograndense. We used a self-administered, online instrument to assess biological, sociodemographic, health, nutrition, and behavior-related variables. The Hospital Anxiety and Depression Scale assessed depression and anxiety. RESULTS: The sample consisted of 5,112 students. The prevalence of students who presented moderate or severe symptoms of anxiety and depression was 34.3% and 24.3%, respectively. In the fully adjusted analysis, factors associated with anxiety and depression symptoms were female sex, low income, screen time at work, worse health perception, unhealthy diet, poor sleep quality, smoking, alcohol consumption, and medication use. Early age and students whose family members or friends died from COVID-19 were associated with anxiety. Married and having less screen time during leisure was a protective factor for depression. Physical activity reduced by 18% and 33% the likelihood of moderate or severe symptoms of anxiety and depression, respectively. CONCLUSION: Public policies to improve the health care of Brazilian students during the return to face-to-face activities are required.


INTRODUÇÃO: No Brasil, a prevalência de sintomas de ansiedade e depressão aumentaram significativamente desde o início da pandemia de COVID-19. No entanto, há uma lacuna no número de estudos que investigaram a prevalência destes sintomas em estudantes de idade escolar no Brasil. OBJETIVO: Identificar a prevalência de depressão e ansiedade e seus fatores associados em estudantes no sul do Brasil. MÉTODOS: Foi realizado um censo em todos os 14 campi do Instituto Federal Sul-rio-grandense através de um instrumento on-line, auto preenchido, com variáveis biológicas, sociodemográficas, de saúde, nutricionais e comportamentais. A saúde mental foi coletada através da Hospital Anxiety and Depression Scale. RESULTADOS: Participaram do estudo 5.112 estudantes com prevalência de sintomas moderados ou severos de ansiedade e depressão de 34,3% e 24,3%, respectivamente. Após a análise ajustada, ser mulher, ter renda baixa, maior tempo de tela no trabalho, pior percepção de saúde, maior consumo de alimentos não saudáveis, baixa qualidade de sono, ser fumante, consumir bebidas alcoólicas e usar medicamentos foram fatores de risco para ansiedade e depressão. Foram associadas somente a ansiedade, ser mais jovem e ter tido familiar/amigo morto por COVID-19. Ser casado e ter menor tempo de tela no lazer foi fator protetor para depressão. Praticar atividade física reduziu 18% e 33% a probabilidade de apresentar sintomas mais severos de ansiedade e depressão, respectivamente. CONCLUSÃO: É importante a implementação de políticas de gestão no cuidado da saúde dos estudantes nas escolas durante o retorno as atividades presenciais.


Asunto(s)
Humanos , Masculino , Adolescente , Adulto , Adulto Joven , Ansiedad/epidemiología , Instituciones Académicas , Estudiantes/psicología , Depresión/epidemiología , Conductas Relacionadas con la Salud , Factores de Riesgo , Determinantes Sociales de la Salud , Dados Estadísticos , Factores Sociodemográficos , Estilo de Vida
20.
Phytopathology ; 114(8): 1802-1809, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38748545

RESUMEN

Citrus canker disease, caused by Xanthomonas citri subsp. citri, poses a significant threat to global citrus production. The control of the disease in the field relies mainly on the use of conventional tools such as copper compounds, which are harmful to the environment and could lead to bacterial resistance. This scenario stresses the need for new and sustainable technologies to control phytopathogens, representing a key challenge in developing studies that translate basic into applied knowledge. During infection, X. citri subsp. citri secretes a transcriptional activator-like effector that enters the nucleus of plant cells, activating the expression of the canker susceptibility gene LATERAL ORGAN BOUNDARIES 1 (LOB1). In this study, we explored the use of antisense oligonucleotides (ASOs) with phosphorothioate modifications to transiently inhibit the gene expression of CsLOB1 in Citrus sinensis. We designed and validated three potential ASO sequences, which led to a significant reduction in disease symptoms compared with the control. The selected ASO3-CsLOB1 significantly decreased the expression level of CsLOB1 when delivered through two distinct delivery methods, and the reduction of the symptoms ranged from approximately 15 to 83%. Notably, plants treated with ASO3 did not exhibit an increase in symptom development over the evaluation period. This study highlights the efficacy of ASO technology, based on short oligonucleotide chemically modified sequences, as a promising tool for controlling phytopathogens without the need for genetic transformation or plant regeneration. Our results demonstrate the potential of ASOs as a biotechnological tool for the management of citrus canker disease.


Asunto(s)
Resistencia a la Enfermedad , Silenciador del Gen , Oligonucleótidos Antisentido , Enfermedades de las Plantas , Xanthomonas , Enfermedades de las Plantas/microbiología , Enfermedades de las Plantas/prevención & control , Xanthomonas/fisiología , Xanthomonas/genética , Resistencia a la Enfermedad/genética , Oligonucleótidos Antisentido/genética , Citrus/microbiología , Citrus sinensis/microbiología , Proteínas de Plantas/genética , Regulación de la Expresión Génica de las Plantas
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