89,862 results match your criteria: "Chile; Centre for Molecular and Functional Ecology in Agroecosystems[Affiliation]"

Introduction: Childhood obesity is a major global public health issue globally and in Brazil. The impacts of childhood obesity include higher risk of disease during childhood and of obesity and non-communicable diseases in adulthood and represent an important epidemiological and economic burden to countries. This study aims to analyze the trends and to estimate the direct healthcare costs of childhood and adolescent obesity to the National Health System from 2013 to 2022.

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Intercellular mitochondria transfer is an evolutionarily conserved process in which one cell delivers some of their mitochondria to another cell in the absence of cell division. This process has diverse functions depending on the cell types involved and physiological or disease context. Although mitochondria transfer was first shown to provide metabolic support to acceptor cells, recent studies have revealed diverse functions of mitochondria transfer, including, but not limited to, the maintenance of mitochondria quality of the donor cell and the regulation of tissue homeostasis and remodelling.

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Objective: Behavioral or conduct problems (BCPs) are common co-occurring conditions in children with special health care needs (CSHCNs), affecting their developmental and functional milestones. The role of family resilience in mitigating BCPs among these children and how adverse childhood experiences (ACEs) affect this dynamic remain largely unclear. The aim of the study was to disentangle the complex interplay between family resilience, ACEs, and BCPs by examining how ACEs moderate the relationship between family resilience and BCPs.

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Maximal strength, sprint and jump performance in elite kumite karatekas.

BMC Sports Sci Med Rehabil

January 2025

Exercise and Rehabilitation Sciences Institute, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago, Chile.

Background: Both maximal muscle strength and muscle power are independently important for karatekas. However, the relationship between strength and power in elite male kumite karatekas is under researched. This study aimed to determine the relationship between back-leg-chest (BLC) isometric muscle strength with sprint and jump variables in elite male karatekas.

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Vitamin D deficiency in a pediatric population with sickle cell disease.

Pediatr Hematol Oncol

January 2025

Department of Pediatrics - Division of Pediatric Hematology, Universidade Federal de São Paulo, Sao Paulo, Brazil.

Pediatric patients with sickle cell disease and vitamin D deficiency have worse clinical and laboratory outcomes. This study aims to quantify the prevalence of vitamin D deficiency in this population and identify possible risk factors for hypovitaminosis D by performing a cross-sectional study with children aged 3-18 years old with sickle cell disease. Sixty patients were evaluated, with a mean age of 10.

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Background: Pain is a common symptom of multiple sclerosis (MS). The reliability of outcome measures for pain and the accuracy of screening tools are essential for treatment purposes.

Objectives: This study investigated the test-retest reliability of Neuropathic Pain Scale (NPS), Neuropathic Pain Symptom Inventory (NPSI), Brief Pain Inventory-Short Form (BPI-SF), Nordic Musculoskeletal Questionnaire (NMQ), Douleur Neuropathique 4 (DN4), and painDETECT, and the accuracy of DN4 and painDETECT.

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Introduction. Middle-ear ventilation tubes are commonly placed in pediatric patients because of the high frequency of otitis media. Although avoidance of water activity has been recommended to prevent otorrhea, studies indicate that exposure to water does not increase these episodes.

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Nonpharmacological interventions to promote sleep in the adult critical patients unit: A scoping review.

Aust Crit Care

January 2025

Intensive Care Medicine Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Intensive Care, Erasmus MC University Medical Centre, Rotterdam, the Netherlands.

Background: Sleep and circadian rhythms are markedly altered in intensive care unit (ICU) patients. Numerous factors related to the patient and the ICU environment affect the ability to initiate and maintain sleep. Therefore, nonpharmacological interventions could play an essential role in improving sleep and circadian rhythm.

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This analysis article aimed to identify and analyze all articles published on the post-COVID-19 condition in Latin America and the Caribbean, focusing on epidemiology, clinical characteristics, and risk of bias. We did a systematic survey of the literature with broad inclusion criteria. The only exclusion criteria were articles referring to post-acute COVID-19 sequelae after an intensive care unit stay, which we distinguish from the post-COVID-19 condition.

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Computational exploration of the electrochemical oxidation mechanism of thiocyanate catalyzed by cobalt-phthalocyanines.

Phys Chem Chem Phys

January 2025

Departamento de Química, Facultad de Ciencias, Universidad de Chile, P. O. Box 653, Las Palmeras 3425, Ñuñoa, Santiago, Chile.

In this study, we focused on the mechanism of the electrocatalytic oxidation of thiocyanate, which in traditional electrodes typically requires high overpotentials. As models for reducing these overpotentials and catalyzing the reaction, we used a set of modified cobalt phthalocyanines (CoPc), known as electrocatalysts. Using DFT calculations, we explored how modifications to CoPc by adding electron-donating and withdrawing groups and the coordination of 4-amino thiophenol impact the oxidation process.

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Background: Cardiovascular (CV) disease is a leading cause of death in pregnant women globally, especially in low- and middle-income countries including Latin America (LATAM), where there is lack of data on how cardiologists are trained in cardio-obstetrics (CO) and the practice patterns in the care of pregnant patients.

Objectives: The authors aimed to identify CO competency and practice patterns among LATAM general cardiologists.

Methods: An anonymous cross-sectional Google-based electronic survey was sent via email to clinical cardiologists through local American College of Cardiology chapters and CV societies.

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Complications in anterior cruciate ligament reconstruction.

J Clin Orthop Trauma

February 2025

Department of Traumatology, Knee and Arthroscopy Unit, Clínica Alemana, Universidad Del Desarrollo, Santiago, Chile.

Anterior cruciate ligament reconstruction (ACLR), despite its effectiveness in restoring knee stability and function, can have associated morbidity. The most frequent complications are technical errors, which have been described during graft harvesting, tunnel placement or graft fixation. The most serious complications are neurovascular injuries, arthrofibrosis and infections.

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Background: In the clinic, the primary conventional treatments of advanced non-small cell lung cancer (NSCLC) are surgery, radiation therapy, and chemotherapy. In recent years, immune checkpoint inhibitors (ICIs) have shown promise in optimizing therapeutic benefits when combined with other immunotherapies or standard therapies. However, effective biomarkers for distant metastasis or recurrence have yet to be identified, making it difficult to determine the best therapeutic approaches.

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Alpha-Lipoic Acid-Mediated Inhibition of LTB Synthesis Suppresses Epithelial-Mesenchymal Transition, Modulating Functional and Tumorigenic Capacities in Non-Small Cell Lung Cancer A549 Cells.

Curr Ther Res Clin Exp

November 2024

Laboratorio de Oncología Celular y Molecular. Departamento de Oncología Básico-Clínica. Facultad de Medicina. Universidad de Chile, Santiago, Chile.

Background: Leukotriene B (LTB) plays a crucial role in carcinogenesis by inducing epithelial-mesenchymal transition (EMT), a process associated with tumor progression. The synthesis of LTB is mediated by leukotriene A hydrolase (LTAH), and it binds to the receptors BLT and BLT. Dysregulation in LTB production is linked to the development of various pathologies.

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Climate change and epigenetics: Unraveling the role of methylation in response to thermal instability in the Antarctic plant Colobanthus quitensis.

Physiol Plant

January 2025

Centro de Ecología Integrativa (CEI), Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile.

Low temperatures are one of the critical conditions affecting the performance and distribution of plants. Exposure to cooling results in the reprogramming of gene expression, which in turn would be mediated by epigenetic regulation. Antarctica is known as one of the most severe ecosystems, but several climate models predict an increase in average temperature, which may positively impact the development of Antarctic plants; however, under warmer temperatures, plants' vulnerability to damages from low-temperature events increases.

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Background: Research on post-secondary training for individuals with intellectual disabilities has generally focused on programs, with little consideration of the structures and mechanisms that give rise to them. This article adopts a critical realist perspective to comparatively analyse and theorise about the contextual structures contributing to the introduction of post-secondary training programs in universities for individuals with intellectual disabilities.

Method: Six stages in critical realist explanatory research were followed.

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Probiotics in inflammatory bowel disease: microbial modulation and therapeutic prospects.

Trends Mol Med

January 2025

Millennium Institute of Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile; Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile. Electronic address:

Inflammatory bowel disease (IBD) is a chronic inflammatory disorder that represents a significant public health challenge worldwide. This multifactorial condition results from complex interactions among genetic, environmental, immune, and microbial factors. Some beneficial microbes, known as probiotics, have been identified as promising therapeutic agents for inflammatory conditions, such as IBD.

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Effects of high-intensity laser therapy in patients with De Quervain's tenosynovitis: A systematic review and meta-analysis.

J Hand Ther

January 2025

Physiotherapeutic Resources Research Laboratory, Department of Physical Therapy, Federal University of São Carlos (UFSCar), São Paulo, Brazil; Department of Rehabilitation Sciences, University of Hartford, West Hartford, CT, USA.

Background: De Quervain's tenosynovitis (QT) is common among individuals performing repetitive manual tasks and significantly affects daily activities due to pain. While traditional treatments often provide limited relief, high-intensity laser therapy (HILT) shows as a potential analgesic resource.

Purpose: This systematic review aimed to evaluate the analgesic effects of HILT in patients with QT.

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Introduction: Whether the implementation of a multimodal prehabilitation program is effective and safe for high-risk heart or lung transplantation candidates, whose condition prevents hospital discharge, is unclear.

Methods: We conducted a retrospective study at a cardiothoracic transplant center in Chile. Two cohorts of hospitalized patients listed for heart or lung transplant were studied: the first underwent traditional (historical) and nonstructured prehabilitation, and the second underwent protocol-driven multimodal prehabilitation (MP).

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Background: Child sexual exploitation (CSE) involves using a child or youth as a sexual object in exchange for remuneration, reward, or favors, meeting their survival needs, and also serving the perpetrator's aims for sexual, social, or economic gain.

Objective: The present study addresses the prevalence of CSE in Spain.

Participants: A representative sample of 4024 secondary school adolescents from 14 to 17 years old (M = 15.

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Pervasive Games for Sexual Health Promotion: Scoping Literature Review.

JMIR Serious Games

January 2025

Department of Interactive Visualization and Virtual Reality, Faculty of Engineering, University of Talca, Talca, Chile.

Background: Serious games play a fundamental role in promoting safe sexual behaviors. This medium has great potential for promoting healthy behaviors that prevent potential risk factors, such as sexually transmitted infections, and promote adherence to sexual health treatments, such as antiretroviral therapy. The ubiquity of mobile devices enhances access to such tools, increasing the effectiveness of video games as agents of change.

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Background: Perihilar cholangiocarcinoma presents unique challenges in perioperative management, requiring a comprehensive approach to optimize patient outcomes.

Aims: This case study focuses on the multidisciplinary management and innovative interventions performed in the perioperative care of a patient with hilar cholangiocarcinoma.

Methods: A comprehensive assessment and treatment strategy involving neoadjuvant therapy and interventional radiology techniques were implemented.

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