Publications by authors named "Osorio D"

Aims: European Systematic Coronary Risk Assessment 2 for Older Persons (SCORE2-OP) model has shown modest performance when externally validated in selected cohorts. We aim to investigate its predictive performance and clinical utility for 10-years cardiovascular (CV) risk in an unbiased and representative cohort of older people of a low CV risk country. Furthermore, we explore whether other clinical or echocardiographic features could improve its performance.

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Background: To enhance the quality of care available for children with central nervous system (CNS) tumors across the world, a systematic evaluation of capacity is needed to identify gaps and prioritize interventions. To that end, we created the pediatric neuro-oncology (PNO) resource assessment aid (PANORAMA) tool.

Methods: The development of PANORAMA encompassed 3 phases: operationalization, consensus building, and piloting.

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Introduction: Ependymoma is the third most frequent central malignant nervous system tumor in the pediatric age group. There is scarce data in the literature on survival of these patients, especially in upper and lower middle-income countries. We aimed to describe the clinical and demographic characteristics, treatment, and outcome of pediatric patients with ependymoma admitted to a public cancer hospital.

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Unfolded protein response (UPR) is a central stress response pathway that is hijacked by tumor cells for their survival. Here, we find that IRE1α signaling, one of the canonical UPR arms, is increased in prostate cancer (PCa) patient tumors. Genetic or small molecule inhibition of IRE1α in syngeneic mouse PCa models and an orthotopic model decreases tumor growth.

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We identified a novel mouse plasmacytoid dendritic cell (pDC) lineage derived from the common lymphoid progenitors (CLPs) that is dependent on expression of . These CLP-derived pDCs, which we refer to as 'B-pDCs', have a unique gene expression profile that includes hallmark B cell genes, normally not expressed in conventional pDCs. Despite expressing most classical pDC markers such as SIGLEC-H and PDCA1, B-pDCs lack IFN-α secretion, exhibiting a distinct inflammatory profile.

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Choroid plexus carcinomas (CPC) are early childhood cancers characterized by loss of function and poor survival. We are analyzing data on status, survival, and second cancers from the largest cohort of CPC receiving chemotherapy followed by consolidation with marrow-ablative chemotherapy (HDCx). Additionally, we discuss the rationale for targeted therapies for CPC patients.

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Background: Primary central nervous system germ cell tumors (GCT) are rare neoplasms in pediatrics. Treatment depends on the histological subtype and extent of the disease. Overall survival (OS) is above 90% for germinomas and 70%-80% for nongerminomatous GCT (NGGCT) in high-income countries (HIC) while data are usually lacking for patients in Low-Middle Income country (LMIC).

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Inductive generalization is adaptive in novel contexts for both biological and artificial intelligence. Spontaneous generalization in inexperienced animals raises questions on whether predispositions (evolutionarily acquired biases, or priors) enable generalization from sparse data, without reinforcement. We exposed neonate chicks to an artificial social partner of a specific color, and then looked at generalization on the red-yellow or blue-green ranges.

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Introduction: Data on medulloblastoma outcomes and experiences in low- and middle-income countries, especially in Latin America, is limited. This study examines challenges in Mexico's healthcare system, focusing on assessing outcomes for children with medulloblastoma in a tertiary care setting.

Methods: A retrospective analysis was conducted, involving 284 patients treated at 21 pediatric oncology centers in Mexico.

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Objective: To evaluate the effectiveness of a nutritional strategy based on two components and adapted for the public health system on blood pressure, cardiometabolic features, self-care, qualify of life and diet quality in individuals with hypertension.

Methods: NUPRESS was an open-label, parallel-group, superiority randomized controlled clinical trial in which participants at least 21 years with hypertension and poorly controlled blood pressure were randomly assigned (1 : 1 allocation ratio) to either an individualized dietary prescription according to nutritional guidelines (control group, n  = 205); or a two-component nutrition strategy, including a goal-directed nutritional counseling and mindfulness techniques (NUPRESS [intervention] group, n  = 205). Primary outcomes were SBP (mmHg) after 24 weeks of follow up and blood pressure control, defined as either having SBP more than 140 mmHg at baseline and achieving 140 mmHg or less after follow-up or having SBP 140 mmHg or less at baseline and reducing the frequency of antihypertensive drugs in use after follow-up.

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Purpose: Acetaminophen is the most common drug used to treat acute pain in the pediatric population, given its wide safety margin, low cost, and multiple routes for administration. We sought to determine the most efficacious route of acetaminophen administration for postoperative acute pain relief in the pediatric surgical population.

Methods: We conducted a systematic review of randomized controlled trials (RCTs) that included children aged between 30 days and 17 yr who underwent any type of surgical procedure and that evaluated the analgesic efficacy of different routes of administration of acetaminophen for the treatment of postoperative pain.

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In many animals, ultraviolet (UV) vision guides navigation, foraging, and communication, but few studies have addressed the contribution of UV signals to colour vision, or measured UV discrimination thresholds using behavioural experiments. Here, we tested UV colour vision in an anemonefish (Amphiprion ocellaris) using a five-channel (RGB-V-UV) LED display. We first determined that the maximal sensitivity of the A.

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Article Synopsis
  • Single-cell technologies allow detailed studies of how specific molecules define cell traits, but challenges like sparse data and cell differences make it tough to model biological variability.
  • SCORPION is introduced as a new tool that reconstructs gene regulatory networks from single-cell RNA-sequencing data, providing reliable comparisons across different populations.
  • In tests, SCORPION outperformed existing techniques and effectively identified differences in regulatory networks related to cancer, helping to reveal important factors that could affect patient survival.
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The decolorization of the Basic violet I (BVI) dye when interacted with a corona discharge is studied in the present work, taking in account two systems, batch and flux. The current and voltage were measured during the whole process in which a corona plasma was generated, with an applied power of 51.9 and 167.

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Malaria remains a major public health concern worldwide. Malaria is endemic in Mozambique, with seasonal fluctuations throughout the country. Although the number of malaria cases in Mozambique have dropped by 11% from 2020 to 2021, there are still hotspots in the country with persistent high incidence and low insecticide-treated bed net usage.

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Background: Mozambique has high rates of cervical cancer and cancer-related deaths among women. A high rate of refusal and low acceptance of treatment is observed among cervical cancer patients. The extent of their knowledge of the disease is unknown.

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Article Synopsis
  • Brainstem injury can develop in up to 2% of children after receiving radiation therapy to the posterior fossa, potentially occurring months or even years post-treatment.
  • Young age (under 5 years) and pre-existing health issues like cerebrovascular disease, diabetes, and hypertension increase the risk of this injury.
  • Radiation necrosis, which can be serious and fatal, has been linked to a specific genetic mutation (RNF213) that is also associated with moyamoya disease, hinting at a genetic predisposition to this complication.
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In this My word Daniel Osorio explains why cephalopod molluscs were protected by a European Union directive on laboratory animal legislation in 2013, and how the scientific community responded to the challenges posed by this development.

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  • Inner ear development involves coordinating various cell types from different origins, but many details about human development are still unclear despite advancements from animal studies.
  • The researchers created a 3D in vitro model using pluripotent stem cells to study human inner ear organogenesis, focusing on the growth of a sensorineural circuit with hair cells and neurons.
  • Through single-cell RNA sequencing over 36 days, they mapped the differentiation timeline, identifying many cell types and establishing the Inner Ear Organoid Developmental Atlas (IODA) to enhance understanding of human inner ear biology and tissue differentiation.
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  • During cytokinesis, a contractile ring made of filamentous actin and myosin II constricts the cell, which is crucial for cell division.
  • In the absence of formin, which is necessary for creating unbranched F-actin, Caenorhabditis elegans can still undergo furrow ingression thanks to the restoration effect of depleting septin.
  • Researchers found that ANI-1 forms a meshwork of aligned structures with non-muscle myosin II, enabling furrow ingression without the typical actin ring, highlighting a compensatory mechanism in cell division.
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In vertebrate vision, early retinal circuits divide incoming visual information into functionally opposite elementary signals: On and Off, transient and sustained, chromatic and achromatic. Together these signals can yield an efficient representation of the scene for transmission to the brain via the optic nerve. However, this long-standing interpretation of retinal function is based on mammals, and it is unclear whether this functional arrangement is common to all vertebrates.

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Atmospheric Particulate Matter (PM) is a pollutant with diverse origins, exhibiting varying chemical compositions, and undergoes several molecular transformations in the atmosphere. In this study, PM samples (PM, PM and TSP) were collected in five Brazilian cities (Camboriú-SC; Catalão-GO; Florianópolis-SC; Limeira-SP and Novo Hamburgo-RS) during the four seasons of the year. Analysis of Variance (ANOVA) was used to evaluate the differences between each city and season in PM concentration.

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Canonical splice site variants affecting the 5' GT and 3' AG nucleotides of introns result in severe missplicing and account for about 10% of disease-causing genomic alterations. Treatment of such variants has proven challenging due to the unstable mRNA or protein isoforms that typically result from disruption of these sites. Here, we investigate CRISPR-Cas9-mediated adenine base editing for such variants in the cystic fibrosis transmembrane conductance regulator () gene.

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Article Synopsis
  • - The study investigates the effectiveness of four biomarkers (procalcitonin, C-reactive protein, interleukin-6, and presepsin) in predicting mortality in critically ill adults with sepsis, addressing inconsistencies found in previous research.
  • - A systematic review and meta-analysis of 60 studies involving over 15,000 patients revealed a high risk of bias in more than 60% of assessments for these biomarkers as prognostic indicators.
  • - The findings indicate that baseline measurements of these biomarkers do not reliably predict mortality outcomes, suggesting that their role in sepsis prognosis may be limited.
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