Proceso que vive el paciente quirúrgico abdominal al recibir soporte nutricional artificial

Introducción: La persona en postoperatorio de cirugía abdominal puede llegar a presentar complicaciones a causa de la patología quirúrgica de base o por la cirugía, impidiendo iniciar o tolerar la vía oral. Una medida que se toma para prevenir o tratar la desnutrición hospitalaria es el manejo con soporte nutricional artificial, evento que transforma la forma de percibir y vivir el proceso de alimentación. Objetivo: comprender el proceso que vive la persona adulta al recibir soporte nutricional artificial en el postoperatorio de cirugía abdominal. Materiales y métodos: se empleó la metodología cualitativa, teoría fundamentada, según postulados de Corbin y Strauss. Se realizaron entrevistas a profundidad a 21 personas adultas en postoperatorio de cirugía abdominal y manejo con soporte nutricional artificial. Resultados: del análisis de los datos se establecieron 4 etapas del proceso: presentando dificultad para alimentarse, estando desnutrido o en riesgo nutricional, recibiendo el soporte nutricional artificial y anhelando recuperar la normalidad de la vida. Conclusiones: el proceso tiene un punto de inicio, determinado por las manifestaciones de la enfermedad, luego el paciente pasa a recibir soporte de nutrición artificial, situación que les genera miedo y ansiedad, continúa con la aceptación y el reconocimiento de los beneficios de la nutrición artificial y finaliza con el inicio de la vía oral

Érase una vez la Transición española: un nuevo relato a través del análisis fílmico feminista del cine de Cecilia Bartolomé

Esta disertación examina, mediante un análisis diegético y formal, la enunciación fílmica innovadora, discrepante, irreverente y transgresora, que, desde una posición marginal y a contracorriente, articula y utiliza la directora de cine Cecilia Bartolomé en la Transición española (sensu lato décadas 1960-1980). Con sus elecciones narrativas y estéticas, expone, reta, problematiza y cuestiona toda una industria y práctica cinematográfica androcéntrica hegemónica que explotó el cuerpo de las mujeres, llegando a naturalizar la violencia verbal y física hacia ellas, y que creó y distribuyó una identidad de las mujeres interesada y política, construyendo un relato limitado y unidireccional del periodo transicional que, desde la perspectiva exclusiva de los hombres, impuso una mirada patriarcal que excluyó a la mitad de la población. Esta tesis es heredera de y está en deuda con la teoría y práctica feminista que realizó una crítica cultural de los símbolos que se utilizan para representar a las mujeres en la imagen y en el lenguaje como parte de las necesarias transformaciones sociales y políticas. A partir del estudio de dos obras realizadas por Bartolomé, demuestro cómo esta desestabiliza un sistema de valores, como es el patriarcado, que propone al hombre como lo universal, lo neutro y lo normativo, y proyecta unas mujeres protagonistas alternativas a las imágenes dominantes y las inserta en el devenir histórico español. Utilizando el feminismo, la teoría fílmica feminista y una perspectiva de género como marco teórico, con autoras como Pilar Aguilar, Barbara Zecchi, Celia Amoros y Amelia Valcárcel, entre otras muchas, expongo la necesidad de incluir esas teorías en los análisis de los sistemas de significación que impregnan nuestro imaginario individual y social y que perpetúan las desigualdades de género. Ya que, por su demostrada capacidad de subvertir interpretaciones privilegiadas desde el punto de vista patriarcal, son herramientas válidas para desarrollar una actitud crítica de estas narrativas que se imponen sobre cualquier acontecimiento histórico o hecho cultural.Doctor of Philosoph

Mitos y creencias acerca de la violencia contra las mujeres rurales

Objetivo: Interpretar los mitos y las creencias acerca de la violencia contra la mujer en un grupo de mujeres del área rural del municipio de Aquitania- Boyacá. Materiales y métodos: Estudio cualitativo con método microetnográfico. La selección de las 12 participantes se hizo una vez la investigadora estuvo inmersa en el contexto social y teniendo en cuenta el principio de pertinencia. La recolección de la información se llevó a cabo en el año 2021, durante la pandemia de la Covid -19, a través de la observación participante, entrevistas en profundidad y notas de campo, para lo cuales, se tuvo la aprobación de la comunidad, aval de comité de ética y firma del consentimiento informado. Para el análisis de los datos teóricos se siguió la técnica de categorización de Corbin y Strauss. Resultados: se establecieron cinco categorías: legitimando la violencia, viviendo el maltrato, papel de la familia, tomando medidas para mitigar el maltrato y comenzando a vivir una nueva vida, las tres primeras categorías simbolizan los mitos y las dos últimas representan las creencias. Estos elementos conceptuales permitieron explicar la violencia contra la mujer como un fenómeno repetitivo, permitido y normalizado, pero en situaciones extremas donde la vida se pone en riesgo, la mujer denuncia o abandona el hogar. Conclusiones: La violencia contra la mujer está determinada por factores culturales, sociales y económicos, es ejercida principalmente por el cónyuge y/o los padres y, genera problemas psicosociales y físicos en la mujer

Synthesis and antifungal activity of novel oxazolidin-2-one linked-1,2,3-triazole derivatives

Artículo IndizadoNovel oxazolidin-2-one-linked 1,2,3-triazole derivatives (4a–k) were synthesized by straightforward and versatile azide–enolate (3 + 2) cycloaddition. The series of compounds was screened for antifungal activity against four filamentous fungi as well as six yeast species of Candida spp. According to their efficiency and breadth of scope, they can be ordered as 4k > 4d > 4h > 4a, especially in relation to the activity displayed against Candida glabrata ATCC-34138, Trichosporon cutaneum ATCC-28592 and Mucor hiemalis ATCC-8690, i.e. compounds 4d, 4h and 4k showed excellent activity against C. glabrata (MIC 0.12, 0.25 and 0.12 μg mL−1, respectively), better than that of itraconazole (MIC 1 μg ml−1). The activity of compound 4d (MIC = 2 μg mL− 1) was higher than that observed for the standard antifungal drug (MIC = 8 μg mL−1) against Trichosporon cutaneum, while compound 4k displayed an excellent antimycotic activity against Mucor hiemalis (MIC = 2 μg mL−1 vs. 4 μg mL−1 for itraconazole). In addition, we describe herein a novel mild and eco-friendly synthetic protocol for obtaining β-ketosulfones (adducts to afford compounds 4a–k) from α-brominated carbonyls in an aqueous nanomicellar medium at room temperature.CONACYT, Secretaría de Investigación de Estudios Avanzados de la UAE

Disentangling signatures of selection before and after European colonization in latin Americans

Throughout human evolutionary history, large-scale migrations have led to intermixing (i.e., admixture) between previously separated human groups. Although classical and recent work have shown that studying admixture can yield novel historical insights, the extent to which this process contributed to adaptation remains underexplored. Here, we introduce a novel statistical model, specific to admixed populations, that identifies loci under selection while determining whether the selection likely occurred post-admixture or prior to admixture in one of the ancestral source populations. Through extensive simulations, we show that this method is able to detect selection, even in recently formed admixed populations, and to accurately differentiate between selection occurring in the ancestral or admixed population. We apply this method to genome-wide SNP data of ∼4,000 individuals in five admixed Latin American cohorts from Brazil, Chile, Colombia, Mexico, and Peru. Our approach replicates previous reports of selection in the human leukocyte antigen region that are consistent with selection post-admixture. We also report novel signals of selection in genomic regions spanning 47 genes, reinforcing many of these signals with an alternative, commonly used local-ancestry-inference approach. These signals include several genes involved in immunity, which may reflect responses to endemic pathogens of the Americas and to the challenge of infectious disease brought by European contact. In addition, some of the strongest signals inferred to be under selection in the Native American ancestral groups of modern Latin Americans overlap with genes implicated in energy metabolism phenotypes, plausibly reflecting adaptations to novel dietary sources available in the Americas

A pan-European epidemiological study reveals honey bee colony survival depends on beekeeper education and disease control

Reports of honey bee population decline has spurred many national efforts to understand the extent of the problem and to identify causative or associated factors. However, our collective understanding of the factors has been hampered by a lack of joined up trans-national effort. Moreover, the impacts of beekeeper knowledge and beekeeping management practices have often been overlooked, despite honey bees being a managed pollinator. Here, we established a standardised active monitoring network for 5 798 apiaries over two consecutive years to quantify honey bee colony mortality across 17 European countries. Our data demonstrate that overwinter losses ranged between 2% and 32%, and that high summer losses were likely to follow high winter losses. Multivariate Poisson regression models revealed that hobbyist beekeepers with small apiaries and little experience in beekeeping had double the winter mortality rate when compared to professional beekeepers. Furthermore, honey bees kept by professional beekeepers never showed signs of disease, unlike apiaries from hobbyist beekeepers that had symptoms of bacterial infection and heavy Varroa infestation. Our data highlight beekeeper background and apicultural practices as major drivers of honey bee colony losses. The benefits of conducting trans-national monitoring schemes and improving beekeeper training are discussed

Disentangling Signatures of Selection Before and After European Colonization in Latin Americans

Throughout human evolutionary history, large-scale migrations have led to intermixing (i.e., admixture) between previously separated human groups. Although classical and recent work have shown that studying admixture can yield novel historical insights, the extent to which this process contributed to adaptation remains underexplored. Here, we introduce a novel statistical model, specific to admixed populations, that identifies loci under selection while determining whether the selection likely occurred post-admixture or prior to admixture in one of the ancestral source populations. Through extensive simulations, we show that this method is able to detect selection, even in recently formed admixed populations, and to accurately differentiate between selection occurring in the ancestral or admixed population. We apply this method to genome-wide SNP data of ∼4,000 individuals in five admixed Latin American cohorts from Brazil, Chile, Colombia, Mexico, and Peru. Our approach replicates previous reports of selection in the human leukocyte antigen region that are consistent with selection post-admixture. We also report novel signals of selection in genomic regions spanning 47 genes, reinforcing many of these signals with an alternative, commonly used local-ancestry-inference approach. These signals include several genes involved in immunity, which may reflect responses to endemic pathogens of the Americas and to the challenge of infectious disease brought by European contact. In addition, some of the strongest signals inferred to be under selection in the Native American ancestral groups of modern Latin Americans overlap with genes implicated in energy metabolism phenotypes, plausibly reflecting adaptations to novel dietary sources available in the Americas

Integrative epigenomics in Sjögren´s syndrome reveals novel pathways and a strong interaction between the HLA, autoantibodies and the interferon signature

Primary Sjögren's syndrome (SS) is a systemic autoimmune disease characterized by lymphocytic infiltration and damage of exocrine salivary and lacrimal glands. The etiology of SS is complex with environmental triggers and genetic factors involved. By conducting an integrated multi-omics study, we confirmed a vast coordinated hypomethylation and overexpression effects in IFN-related genes, what is known as the IFN signature. Stratified and conditional analyses suggest a strong interaction between SS-associated HLA genetic variation and the presence of Anti-Ro/SSA autoantibodies in driving the IFN epigenetic signature and determining SS. We report a novel epigenetic signature characterized by increased DNA methylation levels in a large number of genes enriched in pathways such as collagen metabolism and extracellular matrix organization. We identified potential new genetic variants associated with SS that might mediate their risk by altering DNA methylation or gene expression patterns, as well as disease-interacting genetic variants that exhibit regulatory function only in the SS population. Our study sheds new light on the interaction between genetics, autoantibody profiles, DNA methylation and gene expression in SS, and contributes to elucidate the genetic architecture of gene regulation in an autoimmune population

Global Retinoblastoma Presentation and Analysis by National Income Level.

Importance: Early diagnosis of retinoblastoma, the most common intraocular cancer, can save both a child's life and vision. However, anecdotal evidence suggests that many children across the world are diagnosed late. To our knowledge, the clinical presentation of retinoblastoma has never been assessed on a global scale. Objectives: To report the retinoblastoma stage at diagnosis in patients across the world during a single year, to investigate associations between clinical variables and national income level, and to investigate risk factors for advanced disease at diagnosis. Design, Setting, and Participants: A total of 278 retinoblastoma treatment centers were recruited from June 2017 through December 2018 to participate in a cross-sectional analysis of treatment-naive patients with retinoblastoma who were diagnosed in 2017. Main Outcomes and Measures: Age at presentation, proportion of familial history of retinoblastoma, and tumor stage and metastasis. Results: The cohort included 4351 new patients from 153 countries; the median age at diagnosis was 30.5 (interquartile range, 18.3-45.9) months, and 1976 patients (45.4%) were female. Most patients (n = 3685 [84.7%]) were from low- and middle-income countries (LMICs). Globally, the most common indication for referral was leukocoria (n = 2638 [62.8%]), followed by strabismus (n = 429 [10.2%]) and proptosis (n = 309 [7.4%]). Patients from high-income countries (HICs) were diagnosed at a median age of 14.1 months, with 656 of 666 (98.5%) patients having intraocular retinoblastoma and 2 (0.3%) having metastasis. Patients from low-income countries were diagnosed at a median age of 30.5 months, with 256 of 521 (49.1%) having extraocular retinoblastoma and 94 of 498 (18.9%) having metastasis. Lower national income level was associated with older presentation age, higher proportion of locally advanced disease and distant metastasis, and smaller proportion of familial history of retinoblastoma. Advanced disease at diagnosis was more common in LMICs even after adjusting for age (odds ratio for low-income countries vs upper-middle-income countries and HICs, 17.92 [95% CI, 12.94-24.80], and for lower-middle-income countries vs upper-middle-income countries and HICs, 5.74 [95% CI, 4.30-7.68]). Conclusions and Relevance: This study is estimated to have included more than half of all new retinoblastoma cases worldwide in 2017. Children from LMICs, where the main global retinoblastoma burden lies, presented at an older age with more advanced disease and demonstrated a smaller proportion of familial history of retinoblastoma, likely because many do not reach a childbearing age. Given that retinoblastoma is curable, these data are concerning and mandate intervention at national and international levels. Further studies are needed to investigate factors, other than age at presentation, that may be associated with advanced disease in LMICs

Global Retinoblastoma Presentation and Analysis by National Income Level

Importance: Early diagnosis of retinoblastoma, the most common intraocular cancer, can save both a child's life and vision. However, anecdotal evidence suggests that many children across the world are diagnosed late. To our knowledge, the clinical presentation of retinoblastoma has never been assessed on a global scale. Objectives: To report the retinoblastoma stage at diagnosis in patients across the world during a single year, to investigate associations between clinical variables and national income level, and to investigate risk factors for advanced disease at diagnosis. Design, Setting, and Participants: A total of 278 retinoblastoma treatment centers were recruited from June 2017 through December 2018 to participate in a cross-sectional analysis of treatment-naive patients with retinoblastoma who were diagnosed in 2017. Main Outcomes and Measures: Age at presentation, proportion of familial history of retinoblastoma, and tumor stage and metastasis. Results: The cohort included 4351 new patients from 153 countries; the median age at diagnosis was 30.5 (interquartile range, 18.3-45.9) months, and 1976 patients (45.4%) were female. Most patients (n = 3685 [84.7%]) were from low- A nd middle-income countries (LMICs). Globally, the most common indication for referral was leukocoria (n = 2638 [62.8%]), followed by strabismus (n = 429 [10.2%]) and proptosis (n = 309 [7.4%]). Patients from high-income countries (HICs) were diagnosed at a median age of 14.1 months, with 656 of 666 (98.5%) patients having intraocular retinoblastoma and 2 (0.3%) having metastasis. Patients from low-income countries were diagnosed at a median age of 30.5 months, with 256 of 521 (49.1%) having extraocular retinoblastoma and 94 of 498 (18.9%) having metastasis. Lower national income level was associated with older presentation age, higher proportion of locally advanced disease and distant metastasis, and smaller proportion of familial history of retinoblastoma. Advanced disease at diagnosis was more common in LMICs even after adjusting for age (odds ratio for low-income countries vs upper-middle-income countries and HICs, 17.92 [95% CI, 12.94-24.80], and for lower-middle-income countries vs upper-middle-income countries and HICs, 5.74 [95% CI, 4.30-7.68]). Conclusions and Relevance: This study is estimated to have included more than half of all new retinoblastoma cases worldwide in 2017. Children from LMICs, where the main global retinoblastoma burden lies, presented at an older age with more advanced disease and demonstrated a smaller proportion of familial history of retinoblastoma, likely because many do not reach a childbearing age. Given that retinoblastoma is curable, these data are concerning and mandate intervention at national and international levels. Further studies are needed to investigate factors, other than age at presentation, that may be associated with advanced disease in LMICs