Publications by authors named "Nunez R"

With the urge to reduce the use of petroleum-based materials, the aim of this work is to valorize biowaste to develop smart films through a sustainable fabrication way. In this regard, choline chloride/urea (1:2) deep eutectic solvent (DES) at different concentrations (25, 40, 50 and 75 wt%) was used to dissolve cow horn, used as reinforcement agent in soy protein films. The film fabrication was carried out by compression molding, a fast and cost-effective.

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Objective: To explore the association of maternal characteristics, oxygenation, and mechanical ventilatory parameters with fetal and neonatal outcomes.

Methods: The present study was a multicenter, binational (Argentina/Colombia), prospective, cohort study, conducted in 21 intensive care units (ICUs) and including pregnant or postpartum patients with COVID-19 pneumonia requiring advanced respiratory support and their fetuses/neonates. Advanced respiratory support was defined as high-flow nasal cannula (HFNC), non-invasive ventilation (NIV) or invasive mechanical ventilation (IMV).

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Article Synopsis
  • This study evaluated semen quality variations among men seeking fertility evaluation across 12 regions in Spain, analyzing samples from 2,336 participants.
  • Significant differences in semen volume, sperm concentration, motility, and total motile sperm count were found, particularly highlighting Asturias as having the highest values compared to other locations.
  • The findings suggest that the observed variations in semen quality are consistent across the regions and unlikely due to inconsistencies in laboratory testing methods.
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Background: There is a lack of documented cases regarding complications during ECMO transfer in middle-income countries. Using portable ECMO devices facilitates patient transport but entails significantly higher costs, necessitating evidence of their practical utility. This study aims to describe complications during ECMO transfer in Argentina and to compare complication rates between the integrated portable ECMO and non-portable ECMO systems.

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Icosahedral boron clusters-based BODIPY dyes represent a cutting-edge class of compounds that merge the unique properties of boron clusters with the exceptional fluorescence characteristics of BODIPY dyes. These kinds of molecules have garnered substantial interest due to their potential applications across various fields, mainly including optoelectronics, bioimaging, and potential use as boron carriers for Boron Neutron Capture Therapy (BNCT). Carborane clusters are known for their exceptional stability, rigid geometry, and 3D-aromaticity, while BODIPY dyes are renowned for their strong absorption, high fluorescence quantum yields, and photostability.

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Article Synopsis
  • * The study identified TRIM33 as the only bromodomain protein that binds to histone Kla peptides, which suggests that it may help inhibit inflammatory gene expression during macrophage activation.
  • * Using various biophysical techniques, researchers confirmed that TRIM33 has a strong binding affinity for both Kla and acetylated lysine, with a specific glutamic acid residue in its binding pocket crucial for recognizing Kla, highlighting TRIM33's potential role in macrophage polarization and
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Background And Objectives: Trofinetide, the first approved treatment for Rett syndrome (RTT), is primarily excreted unchanged in the urine; therefore, it is important to assess the extent to which the exposure is affected in patients with renal impairment. Pharmacokinetic modeling overcomes the challenge of dose finding in phase 1 studies that include special populations where there is the potential for increased exposure to study drug. The objectives of this phase 1 study were to evaluate trofinetide pharmacokinetics, safety, and tolerability in a population with moderate renal impairment and normal renal function.

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Females of some species improve their reproductive success not only by being choosy and selecting males with certain traits, but also by sequentially mating with multiple males within one reproductive season. However, it is relatively unknown whether females also evaluate parental care during mate choice and, if they do, whether males actively communicate their care status to approaching females. We monitored a natural population of the glassfrog , a species with sequential polyandry and paternal care, to assess the role of parental care and advertisement calling on male mating success.

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Article Synopsis
  • Between 2015 and 2023, over 7 million Venezuelans were displaced globally, leading to a study on prenatal care among Venezuelan refugees in Colombia.
  • Analysis of 917 women with recent pregnancies revealed that 61.5% had four or more prenatal care visits, with irregular migration status and denial of care significantly reducing the likelihood of attending these visits.
  • Recommendations include improving access to prenatal care by raising awareness, supporting navigation through the health system, and reducing discrimination in health facilities for Venezuelan migrants.
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Introduction: Clinical simulation has been used as a teaching strategy for students in health programmes, fostering greater preparedness and confidence in performing procedures.

Objective: This study aimed to analyse the perception of fourth-semester nursing students and teachers regarding the simulated practice methodology implemented in a private university in Cali, Colombia.

Method: A robust mixed-methods approach was used, incorporating quantitative surveys and qualitative interviews with 41 students and 5 teaching nursing faculty members.

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Introduction: Diagnosing moderate haemophilia A (MHA) solely based on deficient FVIII protein levels limits its optimal management and delays the initiation of prophylaxis. Updating protocols and incorporating new variables into its diagnosis could prevent underestimating disease severity, avoiding early arthropathies and impairing patients' quality of life.

Aim: To propose recommendations to improve the comprehensive management of people with MHA.

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This study presents the successful synthesis of two perylenediimide (PDI)-based -carborane (-carborane) derivatives, PDI-CB1 and PDI-CB2, through the insertion of decaborane into alkyne-terminated PDIs (PDI1 and PDI2). The introduction of -carborane groups did not alter the optical properties of the PDI units in solution compared to their carborane-free counterparts, maintaining excellent fluorescence quantum yields of around 100% in various solvents. This was achieved by using a methylene linker to minimize electronic interaction between PDI and -carborane, and by incorporating bulky -carborane groups at imide- position to enhance solubility and prevent π-π stacking-induced aggregation.

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Introduction: The value of gene therapies for haemophilia needs to be assessed holistically.

Aim: To determine the value of etranacogene dezaparvovec (ED) compared to current extended half-life (EHL) recombinant factors (rFIX), using multi-criteria decision analysis (MCDA).

Method: MCDA EVIDEM methodology adapted to orphan drugs was used, with nine quantitative criteria and four contextual criteria.

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Spontaneous filling and voiding cycles represent a key dynamical feature of the healthy lower urinary tract. Some urinary tract dysfunctions, such as over-flow incontinence, may alter the natural occurrence of these cycles. As the function of the lower urinary tract arises from the interplay of a multitude of factors, it is difficult to determine which of them can be modulated to regain spontaneous cycles.

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An individual's likelihood of developing non-communicable diseases is often influenced by the types, intensities and duration of exposures at work. Job exposure matrices provide exposure estimates associated with different occupations. However, due to their time-consuming expert curation process, job exposure matrices currently cover only a subset of possible workplace exposures and may not be regularly updated.

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Article Synopsis
  • Donation after circulatory death (DCD) liver allografts, when recovered using advanced techniques like thoracoabdominal normothermic regional perfusion (TA-NRP), show promising results in reducing complications compared to traditional methods.
  • A study from 8 centers found that despite some donors having extended warm ischemic times, no instances of primary non-function (PNF) or ischemic cholangiopathy (IC) occurred in the recipients.
  • Overall, DCD liver allografts post-TA-NRP demonstrated favorable early outcomes, with manageable complications and reasonable length of stay in ICU and hospitals.
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The design of photovoltaic modules for vehicle-integrated photovoltaics (VIPVs) must consider specific operating conditions like partial shading. Module cell interconnection topology must demonstrate resilience to such conditions to maximize energy generation without compromising shadow-free performance, manufacturing complexity, or cost. This study presents a modeling tool for VIPV, calculating effective irradiance on the VIPV surface using Light Detection And Ranging (LiDAR) point clouds to estimate the direct component and sky images for the diffuse irradiance.

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Purpose Of Review: Drug allergy is responsible for a huge burden on public healthcare systems, representing in some instances a threat for patient's life. Diagnosis is complex due to the heterogeneity of clinical phenotypes and mechanisms involved, the limitations of in vitro tests, and the associated risk to in vivo tests. Predictive models, including those using recent advances in artificial intelligence, may circumvent these drawbacks, leading to an appropriate classification of patients and improving their management in clinical settings.

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Different vegetable species and topsoils were collected from different urban gardens of Seville, Cordoba, and Huelva (South Spain) and from two small towns in a mining area (Riotinto), together with topsoil close to the plants. The concentration of potentially toxic elements (PTEs) (As, B, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb, and Zn) was evaluated in edible plant parts and in the soils. The same species were also purchased from Seville local markets and from a peri-urban area (domestic garden in a rural area) and also analyzed.

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Background: Immunopathology in food allergy is characterized by an uncontrolled type 2 immune response and specific-IgE production. Recent studies have determined that group 2 innate lymphoid cells (ILC2) participate in the food allergy pathogenic mechanism and their severity. Our objective was to investigate the role of ILC2 in peach-allergic patients due to non-specific lipid transfer protein (Pru p 3) sensitization.

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Inhibition of the bromodomain and extraterminal domain (BET) protein family is a potential strategy to prevent and treat diabetes; however, the clinical use of BET bromodomain inhibitors (BETis) is associated with adverse effects. Here, we explore a strategy for targeting BETis to β cells by exploiting the high-zinc (Zn) concentration in β cells relative to other cell types. We report the synthesis of a novel, Zn-chelating derivative of the pan-BETi (+)-JQ1, (+)-JQ1-DPA, in which (+)-JQ1 was conjugated to dipicolyl amine (DPA).

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Advanced neuroendocrine tumors (NETs) are associated with a poor prognosis. A regimen of 4 cycles of Lu-DOTATATE has been shown to improve both progression-free survival (PFS) and overall survival (OS) in patients with advanced NETs. To the best of our knowledge, this is the first study in the United States to evaluate the effectiveness and safety of additional cycles of Lu-DOTATATE therapy in patients with progressive NETs.

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The polybromo, brahma-related gene 1-associated factors (PBAF) chromatin remodeling complex subunit polybromo-1 (PBRM1) contains six bromodomains that recognize and bind acetylated lysine residues on histone tails and other nuclear proteins. PBRM1 bromodomains thus provide a link between epigenetic posttranslational modifications and PBAF modulation of chromatin accessibility and transcription. As a putative tumor suppressor in several cancers, PBRM1 protein expression is often abrogated by truncations and deletions.

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