406 results match your criteria: "Pontifical Catholic University of Chile.[Affiliation]"

Article Synopsis
  • - The study analyzed the thermal performance curve (TPC) of five species of amphibia (Eupsophus) in southern Chile, focusing on how temperature affects their locomotor abilities under different environmental conditions.
  • - Results indicated that these species have relatively consistent thermal responses, showing narrow thermal windows for activity compared to other local species, while also exhibiting significant individual differences in performance across varying temperatures.
  • - The research suggested a trade-off between thermal tolerance and locomotor performance, hinting that species with broader temperature ranges may experience reduced performance, and these traits are influenced by body size, raising ecological questions.
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Disturbed remodeling of the extracellular matrix (ECM) is frequently observed in several high-prevalence pathologies that include fibrotic diseases of organs such as the heart, lung, periodontium, liver, and the stiffening of the ECM surrounding invasive cancers. In many of these lesions, matrix remodeling mediated by fibroblasts is dysregulated, in part by alterations to the regulatory and effector systems that synthesize and degrade collagen, and by alterations to the functions of the integrin-based adhesions that normally mediate mechanical remodeling of collagen fibrils. Cell-matrix adhesions containing collagen-binding integrins are enriched with regulatory and effector systems that initiate localized remodeling of pericellular collagen fibrils to maintain ECM homeostasis.

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Spastic wrist flexion deformities both limit the functional use of the hand for grasp and pinch producing a stigmatizing appearance. Tendon transfers and total wrist arthrodesis are treatment options for this condition depending on the patient's characteristics, the latter the most commonly used in patients with severe wrist flexion deformities. Tendon transfers alone in this scenario have the tendency for recurrent deformity due to tenorrhaphy failure or soft tissue creep and resultant loss of tension.

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On the art of audio description: Naomi Kawase's .

Med Humanit

August 2024

Faculty of Literature and Linguistics, Pontifical Catholic University of Chile, Santiago, Chile.

Audio description improves access to visual culture for people who are unable to fully participate in it due to visual impairments. Because of this direct benefit to disabled people, it is usually defined as an accommodation or inclusion service. Rather than adopting this view, we see disability as a creative force, arguing that it can engender a new dimension of art: audio description as a form of cinematic ekphrasis.

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Relevant Aspects of Combined Protocols for Prevention of N(M)AFLD and Other Non-Communicable Diseases.

Mol Nutr Food Res

April 2024

Cellular Physiology and Bioenergetic Laboratory, School of Chemistry and Pharmacy, Faculty of Chemistry and Pharmacy, Pontifical Catholic University of Chile, Santiago, 7820436, Chile.

Obesity is a global health issue characterized by the excessive fat accumulation, leading to an increased risk of chronic noncommunicable diseases (NCDs), including metabolic dysfunction-associated fatty liver disease (MAFLD), which can progress from simple steatosis to steatohepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma. Currently, there are no approved pharmacological protocols for prevention/treatment of MAFLD, and due the complexity lying beneath these mechanisms, monotherapies are unlikely to be efficacious. This review article analyzes the possibility that NCDs can be prevented or attenuated by the combination of bioactive substances, as they could promote higher response rates, maximum reaction results, additive or synergistic effects due to compounds having similar or different mechanisms of action and/or refraining possible side effects, related to the use of lower doses and exposures times than monotherapies.

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Background: Open reduction and internal fixation with plate is one of the most widely used treatments for distal third humeral shaft fractures. The purpose of this study was to report the outcomes of the treatment of distal third humeral shaft fractures with posterior minimally invasive plate osteosynthesis (MIPO) with segmental isolation of the radial nerve.

Methods: We performed an observational, retrospective, consecutive, monocentric, continuous multioperator study.

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The genes encoding for estrogen receptor () and follicle-stimulating hormone receptor () play crucial roles in ovarian follicular development. This study aimed to determine the expression levels of miRNAs predicted against and mRNAs in follicular cells related to their target genes during the estrous cycle in canines. Antral follicles were dissected from 72 ovaries following ovariohysterectomies.

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Article Synopsis
  • * A systematic review and meta-analysis were conducted, including eight articles, where biofeedback showed significant benefits in improving knee extension and balance, with two out of three studies indicating better quadriceps strength in the biofeedback group.
  • * While biofeedback appeared helpful for strength and functionality, there was no significant difference in pain levels or the Lysholm score between patients using biofeedback and those in the standard rehabilitation group.
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Family honour, protecting and upholding the family name, is central to familism. Yet, it has been somewhat neglected by scholarship on Latin American and Latino families. Familism involves prioritising the family over the individual.

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Santiago, Chile is a very segregated city, with higher childhood obesity rates observed in vulnerable areas. We compared the counts and proximity of unhealthy food outlets (UFOs) around a 400 m buffer of 443 public schools (municipal and subsidized) located in socioeconomically diverse neighborhoods in 14 municipalities of Santiago. This was a cross-sectional study in which the socioeconomic status (SES) of the population living inside the buffer was classified as middle-high, middle, and low.

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LooplessFluxSampler: an efficient toolbox for sampling the loopless flux solution space of metabolic models.

BMC Bioinformatics

January 2024

Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Building 75, Cnr College Rd and Cooper Rd, Brisbane, Australia.

Background: Uniform random sampling of mass-balanced flux solutions offers an unbiased appraisal of the capabilities of metabolic networks. Unfortunately, it is impossible to avoid thermodynamically infeasible loops in flux samples when using convex samplers on large metabolic models. Current strategies for randomly sampling the non-convex loopless flux space display limited efficiency and lack theoretical guarantees.

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Gut epithelial Interleukin-17 receptor A signaling can modulate distant tumors growth through microbial regulation.

Cancer Cell

January 2024

Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Gastrointestinal Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Immunology, University of Texas MD Anderson Cancer Center, Houston, TX, USA. Electronic address:

Microbes influence cancer initiation, progression and therapy responsiveness. IL-17 signaling contributes to gut barrier immunity by regulating microbes but also drives tumor growth. A knowledge gap remains regarding the influence of enteric IL-17-IL-17RA signaling and their microbial regulation on the behavior of distant tumors.

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Angiotensin-(1-7) improves skeletal muscle regeneration.

Eur J Transl Myol

December 2023

Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile; Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences. Universidad Andres Bello, Santiago.

Skeletal muscle possesses regenerative potential via satellite cells, compromised in muscular dystrophies leading to fibrosis and fat infiltration. Angiotensin II (Ang-II) is commonly associated with pathological states. In contrast, Angiotensin (1-7) [Ang-(1-7)] counters Ang-II, acting via the Mas receptor.

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Global Burden of Cardiovascular Diseases and Risks, 1990-2022.

J Am Coll Cardiol

December 2023

Department of Health Metrics Sciences, Institute for Health Metrics and Evaluation, School of Medicine, University of Washington, Seattle, Washington, USA; Division of Cardiology, Department of Medicine, University of Washington, Seattle, Washington, USA. Electronic address:

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The health impacts of intimate partner violence against women and childhood sexual abuse are not fully understood. Here we conducted a systematic review by comprehensively searching seven electronic databases for literature on intimate partner violence-associated and childhood sexual abuse-associated health effects. Following the burden of proof methodology, we evaluated the evidence strength linking intimate partner violence and/or childhood sexual abuse to health outcomes supported by at least three studies.

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Background: Straight antegrade humeral nailing (SAHN) is associated with excellent clinical results in proximal humerus fractures. The optimal entry point is the top of the humeral head. However, the anatomy is variable, and the entry point can affect supraspinatus tendon footprint (SSP-F) or fracture reduction.

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Children's right to play in times of war.

Bioethics

January 2025

Center for Bioethics, Faculty of Law, Falculty of Medicine, Pontifical Catholic University of Chile, Santiago, Chile.

This paper discusses children's right to play and its bioethical importance for children affected by war. Against the background of the current military conflicts, it analyses physical, psychological, and institutional factors that limit children's right to play in a situation involving armed conflict. Considering that the lack of institutional support of play for children affected by war constitutes a failure to fulfil our societal and political obligation under Article 31 of the United Nations Convention on the Rights of the Child, this paper analyses the understanding of play adopted in this legal instrument.

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Introduction: Long-term pulmonary dysfunction (L-TPD) is one of the most critical manifestations of long-COVID. This lung affection has been associated with disease severity during the acute phase and the presence of previous comorbidities, however, the clinical manifestations, the concomitant consequences and the molecular pathways supporting this clinical condition remain unknown. The aim of this study was to identify and characterize L-TPD in patients with long-COVID and elucidate the main pathways and long-term consequences attributed to this condition by analyzing clinical parameters and functional tests supported by machine learning and serum proteome profiling.

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Human teaching is a key behavior for the socialization of cultural knowledge. Previous studies suggest that human teaching behavior would support the development of executive and ToM skills, which in turn would refine the teaching behavior. Given this connection, it raises the question of whether subjects with professional training in teaching also have more efficient executive and ToM systems.

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Reliability and Validity of the Spanish Adaptation of the Stanford Proxy Test for Delirium in Two Clinical Spanish-Speaking Communities.

J Acad Consult Liaison Psychiatry

April 2024

Division of Medical Psychiatry, Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Stanford, CA. Electronic address:

Background: Delirium is the most prevalent neuropsychiatric syndrome experienced by patients admitted to inpatient clinical units, occurring in at least 20% of medically hospitalized patients and up to 85% of those admitted to critical care units. Although current guidelines recommend the implementation of universal prevention strategies, the use of management strategies largely depends on constant surveillance and screening. This allows for the timely diagnosis and correction of its underlying causes and implementation of management strategies.

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Introduction: Multiple Sclerosis (MS) is a chronic disease affecting around 2.8 million people worldwide. Two-thirds are women, and the mean age at diagnosis is about 30 years old.

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Small cryptic plasmids have no clear effect on the host fitness and their functional repertoire remains obscure. The naturally competent cyanobacterium Synechocystis sp. PCC 6803 harbours several small cryptic plasmids; whether their evolution with this species is supported by horizontal transfer remains understudied.

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Purpose: The most popular knee posterolateral corner (PLC) reconstruction techniques describe that a common peroneal nerve (CPN) neurolysis must be done to safely address the posterolateral aspect of the knee. The purpose of this study was to measure the distance between the CPN and the fibular insertion of the FCL in different degrees of knee flexion in cadaveric specimens, to identify if tunnel drilling could be done anatomically and safely without a CPN neurolysis.

Methods: Ex vivo experimental analytical study.

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