90,102 results match your criteria: "Chile; Hospital Clinico Regional Guillermo Grant Benavente de Concepcion[Affiliation]"

Despite the acknowledged merits of precision oncology (PO) and its increasing global implementation, its full potential for advancing care and prevention remains unrealized. The benefits are currently accessible to only limited patient segments because of multifaceted barriers. Successful implementation hinges on various factors-scientific complexities not limited to technical, clinical, regulatory, economic, administrative, and health care policy-related challenges.

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Introduction: Lung cancer is the leading cause of death by cancer worldwide and has a high lethality. The best treatment for patients with localized disease is anatomical surgical resection, granting good average survival in the long term. We did not find Chilean studies focusing on complications, long term survival or potential association with pathological or clinical factors.

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Altermagnetism in two-dimensional CaRuO perovskite.

Nanoscale

January 2025

Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso, Chile.

We propose and characterize a novel two-dimensional material, 2D-CRO, derived from bulk calcium-based ruthenates (CROs) of the Ruddlesden-Popper family, CaRuO ( = 1 and 2). Using density functional theory, we demonstrate that 2D-CRO maintains structural stability down to the monolayer limit, exhibiting a tight interplay between structural and electronic properties. Notably, 2D-CRO displays altermagnetic behavior, characterized by zero net magnetization and strong spin-dependent phenomena, stabilized through dimensionality reduction.

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Road activities are recognized sources of pollution that affect the hydrochemistry of nearby water bodies. This study evaluated the Water Quality Monitoring Program in the Soberbo and Iconha rivers in the Guapi-Macacu watershed, which is affected by the BR-116 highway. The Rio-Teresópolis Concessionaire from 2009 to 2016 carried out quarterly sampling.

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Background: Rehabilitation is a critical process for enhancing functionality, independence, and quality of life in individuals with disabilities. Grounded in the biopsychosocial model, it addresses physical, emotional, and social dimensions through personalized, evidence-based interventions. By integrating standardized assessments and continuous evaluation, rehabilitation has the potential to promote recovery and support active participation in society.

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Chilean National Sports Talent Detection System: Influence of Biological Age, Sex, and Geographic Area.

J Funct Morphol Kinesiol

December 2024

Integrative Laboratory of Biomechanics and Physiology of Effort, (LIBFE), School of Kinesiology, Faculty of Medicine, Universidad de los Andes, Santiago 7620001, Chile.

Unlabelled: The purpose of this study was to assess the methodology for selecting sports talent in the Chilean Promising Athletes Program (CPAP).

Methods: The standing broad jump (SBJ), medicine ball chest throw (MBCT), thirty-meter running sprint (RS-30), Agility-T (T-test), and height were analyzed in 3060 schoolchildren from Chile, grouped by sex, age, geographical area (north, central and south) and maturity status at peak height velocity (PHV) in pre-, circa- and post-PHV.

Results: Superior differences were found in boys for all age ranges in SBJ, RS-30, T-test, and MBCT ( < 0.

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Purpose: To identify the current status and development of zirconia barriers in bone augmentation procedures in the maxillofacial area of adult human patients.

Materials And Methods: Two independent reviewers conducted an electronic literature search in PubMed/MEDLINE, Web of Science, Scopus, EBSCO, the Cochrane Library, and LILACS databases, as well as a manual search to identify eligible clinical studies up to April 15, 2024. The protocol was designed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines.

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Impairment of the Functional Status and Decrease in Albumin in Frail Older People After a COVID-19 Outbreak: A Descriptive Study in a Long-Term Care Facility in Chile.

Geriatrics (Basel)

December 2024

Laboratorio de Investigación en Salud de Precisión, Departamento de Procesos Diagnósticos y Evaluación, Facultad de Ciencias de la Salud, Universidad Católica de Temuco, Temuco 4780000, Chile.

Frailty is a common condition among older individuals and is associated with increased vulnerability to adverse health outcomes. The COVID-19 pandemic further highlighted the impact of viral infections on frail populations. The present work aimed to determine frailty, functional and cognitive status, and clinical analysis of older persons in a long-term care facility in Chile, before and following the outbreak of COVID-19.

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Objectives: To examine prevalence trends in the use of smoked tobacco products in 11 South American (SA) countries (i.e., Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Paraguay, Peru, Suriname, Uruguay, and Venezuela) and their association with country-specific socio-demographic index (SDI) over 30 years.

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T cells targeting a KRAS mutation can induce durable tumor regression in some patients with metastatic epithelial cancer. It is unknown whether T cells targeting mutant KRAS that are capable of killing tumor cells can be identified from peripheral blood of patients with pancreatic cancer. We developed an in vitro stimulation approach and identified HLA-A*11:01-restricted KRAS G12V-reactive CD8+ T cells and HLA-DRB1*15:01-restricted KRAS G12V-reactive CD4+ T cells from peripheral blood of 2 out of 6 HLA-A*11:01-positive patients with pancreatic cancer whose tumors expressed KRAS G12V.

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Semiparametric estimator for the covariate-specific receiver operating characteristic curve.

Stat Methods Med Res

January 2025

CITMAga and Department of Statistics and Operations Research, Universidade de Vigo, Vigo, Galicia, Spain.

The study of the predictive ability of a marker is mainly based on the accuracy measures provided by the so-called confusion matrix. Besides, the area under the receiver operating characteristic curve has become a popular index for summarizing the overall accuracy of a marker. However, the nature of the relationship between the marker and the outcome, and the role that potential confounders play in this relationship could be fundamental in order to extrapolate the observed results.

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Assessing muscle mass in critically ill patients remains challenging. This retrospective cohort study explores the potential of phase angle (PA°) derived from bioelectrical impedance analysis (BIA) as a surrogate marker for muscle mass monitoring by associating it with daily creatinine excretion (DCE), a structural and metabolic muscle mass marker. In 20 ICU patients, we observed a linear relationship between PA° and DCE at initial (S1) and follow-up (S2) points, with Rho values of 0.

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This article examines the transformative potential of blockchain technology and its integration with artificial intelligence (AI) in clinical trials, focusing on their combined ability to enhance integrity, operational efficiency, and transparency in the data governance. Through an in-depth analysis of recent advancements, the article highlights how blockchain and AI address critical challenges, including patient data privacy, regulatory compliance, and security. The article also identifies key barriers to adoption in the mentioned integration, such as scalability limitations, association with existing healthcare systems, and high implementation costs.

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A dataset of Antarctic ecosystems in ice-free lands: classification, descriptions, and maps.

Sci Data

January 2025

Centre for Ecosystem Science, School of Biological, Earth, and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia.

Antarctica, Earth's least understood and most remote continent, is threatened by human disturbances and climate-related changes, underscoring the imperative for biodiversity inventories to inform conservation. Antarctic ecosystems support unique species and genetic diversity, deliver essential ecosystem services and contribute to planetary stability. We present Antarctica's first comprehensive ecosystem classification and map of ice-free lands, which host most of the continent's biodiversity.

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Background: Long-gap esophageal atresia (LGEA) can complicate the management of esophageal atresia (EA) with or without a tracheoesophageal fistula (TEF). This series describes a short interval, staged, thoracoscopic internal traction approach for LGEA with distal TEF to manage complex anastomotic tension or an anatomically impossible esophageal anastomosis.

Methods: A retrospective review (2018-2024) was performed across four tertiary centers to identify patients with LGEA and distal TEF, managed with a staged, thoracoscopic internal traction approach.

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Objective: To examine the effects on strength, pain intensity, range of motion (ROM), and functionality of a 12-week dual-task resistance exercise program in patients undergoing rehabilitation from elbow fractures.

Design: Randomized Controlled Trial SETTING: Rehabilitation hospital.

Participants: Individuals undergoing elbow fracture rehabilitation.

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Epidemiological insight into disseminated neoplasia in Mytilus chilensis from southern Chile.

J Invertebr Pathol

January 2025

Centro Acuícola y Pesquero de Investigación Aplicada Facultad de Recursos Naturales y Medicina Veterinaria Universidad Santo Tomás Chile.

This study investigates the prevalence and characteristics of disseminated neoplasia (DN) in Mytilus chilensis in the Los Lagos Region of southern Chile. DN is a malignant proliferative disease that has been described in several species of the genus Mytilus. More than 4.

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Most circadian texts begin by stating that clocks are pervasive throughout the tree of life. Indeed, clock mechanisms have been described from cyanobacteria to humans, representing a notable example of convergent evolution: yet, there are several phyla in animals, protists or within fungi and bacteria, in which homologs of some-or all-known clock components seem to be absent, posing inevitable questions about the evolution of circadian systems. Moreover, as we move away from model organisms, there are several taxa in which core clock elements can be identified at the genomic levels.

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Impacts of different intensities of commercial Sphagnum moss extraction on CO fluxes in a northern Patagonia peatland.

Sci Total Environ

January 2025

Department of Forest Sciences, Faculty of Agricultural and Environmental Sciences, Universidad de La Frontera, Temuco, Chile.

Peatlands are key ecosystems for global climate regulation because they provide the most efficient carbon sink on the planet. Despite this, they have been widely degraded by various anthropogenic disturbances, causing imbalances in their ecological functioning. A more recent type of disturbance corresponds to the commercial extraction of Sphagnum mosses, which has been carried out in temperate peatlands distributed in Australasia and Patagonia.

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MITOCDNB DECREASES PLATELET ACTIVATION THROUGH ITS SELECTIVE ACTION ON MITOCHONDRIAL THIOREDOXIN REDUCTASE.

Biomed Pharmacother

January 2025

Thrombosis and Healthy Aging Research Center, MIBI: Interdisciplinary Group on Mitochondrial Targeting and Bioenergetics, Medical Technology School, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile. Electronic address:

Platelet inhibition is a fundamental objective to prevent and treat thrombus formation. Platelet activation depends on mitochondrial function. This study aims to identify a new mitochondria-targeting compound with antiplatelet activity at safe concentrations in vitro.

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High diversity of fungal ecological groups from ice-free pristine and disturbed areas in the Fildes Peninsula, King George Island, Antarctica.

PLoS One

January 2025

Departamento de Química, Laboratorio de Química Aplicada y Sustentable (LabQAS), Universidad del Bío-Bío, Concepción, Chile.

Ice-free areas are habitats for most of Antarctica's terrestrial biodiversity. Although fungal communities are an important element of these habitats, knowledge of their assemblages and ecological functions is still limited. Herein, we investigated the diversity, composition, and ecological functionality of fungal communities inhabiting sediments from ice-free areas across pristine and anthropogenically impacted sites in the Fildes Peninsula on King George Island, Antarctica.

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The Satisfaction With Life Scale (SWLS) is a widely used self-report measure of subjective well-being, but studies of its measurement invariance across a large number of nations remain limited. Here, we utilised the Body Image in Nature (BINS) dataset-with data collected between 2020 and 2022 -to assess measurement invariance of the SWLS across 65 nations, 40 languages, gender identities, and age groups (N = 56,968). All participants completed the SWLS under largely uniform conditions.

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Pandemic antigones: The role of women in shaping funeral practices in Chile.

Death Stud

January 2025

Social Sciences Faculty, Universidad de Chile, Santiago, Chile.

This study, conducted in 2020, investigates the impact of health restrictions on funeral rites during the COVID-19 pandemic in Chile, based on the experience of women who took part in these rites. Using Antigone's tragedy as a theoretical framework, it explores the tension between the moral law of honoring the deceased and the universal law manifested in pandemic-related restrictions-four semi-structured online interviews with women in Santiago who engaged in adapted funeral practices. The qualitative analysis revealed that participants developed innovative rituals to maintain the dignity of farewells and reintegrate the deceased into public and symbolic spheres, such as virtual gatherings and personalized tributes.

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