Publications by authors named "Arranz A"

Article Synopsis
  • The study explores using electrodeposited copper (Cu) and tin (Sn) in electrocatalysts to efficiently reduce atmospheric CO and produce valuable products while integrating with renewable energy.
  • The research focuses on different configurations of Cu and Sn, finding that a catalyst with Sn over a thin layer of Cu performs best, demonstrating promising durability in initial tests.
  • Optimized Sn and Cu-based catalysts yield over 60% organic products, mainly CO, at low energy costs (under 3 V), highlighting the process's economic viability.
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Background: The viability of the liver pre-transplant depends on the type of donor, age, medical history, circumstances of death, result of analytics, and complementary exploration of the abdominal cavity. Abdominal ultrasound is the initial option for the assessment of previously unknown liver disease, such as the qualitative determination of hepatic steatosis . The presence of hepatic steatosis is considered a risk factor for graft failure after liver transplantation, therefore, at the time of clinical assessment of the donor or its presence in the macroscopic assessment in the operating room can be cause for rejection of the organ by the transplant teams.

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The major genetic risk factor for Alzheimer's disease (AD), APOE4, accelerates beta-amyloid (Aβ) plaque formation, but whether this is caused by APOE expressed in microglia or astrocytes is debated. We express here the human APOE isoforms in astrocytes in an Apoe-deficient AD mouse model. This is not only sufficient to restore the amyloid plaque pathology but also induces the characteristic transcriptional pathological responses in Apoe-deficient microglia surrounding the plaques.

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Objective: The postpartum period represents a vulnerable time for women's mental health, especially for those with complications and prematurity. This study aims to explore the evolution of depression and anxiety levels during the 12 weeks postpartum in mothers of premature babies.

Design: Prospective study of two parallel cohorts.

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Introduction: We investigated whether structured maternal lifestyle interventions based on Mediterranean diet or stress reduction influence fetal-infant neurodevelopment detected by detailed fetal neurosonography and Ages and Stages Questionnaires 3rd edition (ASQ) at 12 months old.

Methods: This was a secondary analysis of a randomized clinical trial (2017-2020), including 1,221 singleton pregnancies at high risk for small-for-gestational age. Participants were randomized into three groups at 19-23 weeks' gestation: Mediterranean diet intervention, stress reduction program, or usual care.

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The hippocampus is a brain area linked to cognition. The mechanisms that maintain cognitive activity in humans are poorly understood. Centenarians display extreme longevity which is generally accompanied by better quality of life, lower cognitive impairment, and reduced incidence of pathologies including neurodegenerative diseases.

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Introduction: Lung cancer (LC) screening detects tumors early. The prospective GESIDA 8815 study was designed to assess the usefulness of this strategy in HIV + people (PLHIV) by performing a low-radiation computed tomography (CT) scan.

Patients And Methods: 371 heavy smokers patients were included (>20 packs/year), >45 years old and with a CD4+ <200 mm nadir.

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Today, diabetes mellitus is one of the most common diseases that affects the population on a worldwide scale. Patients suffering from this disease are required to control their blood-glucose levels several times a day through invasive methods such as piercing their fingers. Our NaGdF: 5% Er, 3% Nd nanoparticles demonstrate a remarkable ability to detect D-glucose levels by analysing alterations in their red-to-green ratio, since this sensitivity arises from the interaction between the nanoparticles and the OH groups present in the D-glucose molecules, resulting in discernible changes in the emission of the green and red bands.

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Article Synopsis
  • The study aimed to explore how the pulmonary blood vessels behave in fetuses that are growth restricted (FGR) compared to normally grown fetuses, both at baseline and after the mother received extra oxygen.
  • A cohort of 97 FGR and 111 normal fetuses was examined using ultrasound Doppler to capture blood flow data between 24 and 37 weeks of pregnancy, and advanced machine learning and computational modeling were applied to analyze this data.
  • Results showed that FGR fetuses had a lower pulmonary blood flow measurement at baseline and exhibited significant changes in response to oxygen treatment compared to controls, indicating the potential for Doppler ultrasound in managing FGR cases in the future.
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Background: Maternal suboptimal nutrition and high stress levels are associated with adverse fetal and infant neurodevelopment.

Objective: This study aimed to investigate if structured lifestyle interventions involving a Mediterranean diet or mindfulness-based stress reduction during pregnancy are associated with differences in fetal and neonatal brain development.

Study Design: This was a secondary analysis of the randomized clinical trial Improving Mothers for a Better Prenatal Care Trial Barcelona that was conducted in Barcelona, Spain, from 2017 to 2020.

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Neuronal cell loss is a defining feature of Alzheimer's disease (AD), but the underlying mechanisms remain unclear. We xenografted human or mouse neurons into the brain of a mouse model of AD. Only human neurons displayed tangles, Gallyas silver staining, granulovacuolar neurodegeneration (GVD), phosphorylated tau blood biomarkers, and considerable neuronal cell loss.

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Lee et al. report that loss of the Alzheimer's disease risk factor SORL1 results in neuron-specific reduction in APOE and CLU, altered lipid homeostasis, and increased Aβ levels and phosphorylated Tau, both rescued by stabilizing retromer or enhancing autophagy.

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Importance: Maternal suboptimal nutrition and high stress levels are associated with adverse fetal and childhood neurodevelopment.

Objective: To test the hypothesis that structured interventions based on a Mediterranean diet or mindfulness-based stress reduction (MBSR) during pregnancy improve child neurodevelopment at age 2 years.

Design, Setting, And Participants: This was a prespecified analysis of the parallel-group Improving Mothers for a Better Prenatal Care Trial Barcelona (IMPACT BCN) randomized clinical trial, which was conducted at a university hospital in Barcelona, Spain, from February 2017 to March 2020.

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The α4β1 integrin regulates the trafficking of multiple myeloma (MM) cells and contributes to MM disease progression. MicroRNAs (miRNAs) can have both tumor suppressor and oncogenic roles and thus are key controllers of tumor evolution, and have been associated with different phases of MM pathogenesis. Using small RNAseq analysis, we show here that α4β1-dependent MM cell adhesion regulates the expression of forty different miRNAs, therefore expanding our current view of the α4β1 involvement in MM cell biology.

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In the present work, CuS nanoparticles were biorecovered from a real acid mine drainage (AMD) and its photocatalytic and antibacterial activities were studied. CuS were formed by delivering biogenic HS produced by a continuous sulfidogenic bioreactor to an off-line vessel containing the AMD. The main physico-chemical properties of CuS nanoparticles were analyzed by UV-vis spectroscopy, TEM, FE-SEM, XRD and XPS.

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The use of sulfidogenic bioreactors is a biotechnology trend to recover valuable metals such as copper and zinc as sulfide biominerals from mine-impacted waters. In the present work, ZnS nanoparticles were produced using "green" HS gas generated by a sulfidogenic bioreactor. ZnS nanoparticles were physico-chemically characterized by UV-vis and fluorescence spectroscopy, TEM, XRD and XPS.

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The evolution of the nervous system progressed through cellular diversification and specialization of functions. Conceptually, the nervous system is composed of electrically excitable neuronal networks connected by chemical synapses and nonexcitable glial cells that provide for homeostasis and defense. The evolution of neuroglia began with the emergence of the centralized nervous system and proceeded through a continuous increase in their complexity.

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SARS-CoV-2 is a new coronavirus characterized by a high infection and transmission capacity. A significant number of patients develop inadequate immune responses that produce massive releases of cytokines that compromise their survival. Soluble factors are clinically and pathologically relevant in COVID-19 survival but remain only partially characterized.

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Objective: To identify the prevalence of pre-pregnancy overweight/obesity in pregnant women and its relationship with socio-demographic factors and to describe the maternal and perinatal outcomes in a Barcelona hospital (Spain).

Method: A descriptive cross-association study, with retrospective data collection, was performed Barcelona Hospital. The data of 5447 pregnant women who delivered at >=23 weeks of gestation were included.

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Background: Women who are pregnant and have obesity and excessive gestational weight gain (GWG) present a higher risk of maternal and perinatal complications. The use of mobile apps and a wristband during pregnancy may contribute to promoting healthy lifestyles and, thus, improving maternal and neonatal health.

Objective: This study aims to evaluate the effectiveness of a complex digital health intervention, using a smartband and app with midwife counseling, on GWG and physical activity (PA) in women who are pregnant and have obesity and analyze its impact on maternal and perinatal outcomes.

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The Toll-like receptor 4 (TLR4)/myeloid differentiation protein-2 (MD-2) complex is considered the major receptor of the innate immune system to recognize lipopolysaccharides (LPSs). However, some atypical LPSs with different lipid A and core saccharide moiety structures and compositions than the well-studied enterobacterial LPSs can induce a TLR2-dependent response in innate immune cells. , an opportunistic pathogen, presents an atypical LPS.

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Objective: To describe the capacity of a broad spectrum of cytokines and growth factors to predict ICU admission and/or death in patients with severe COVID-19.

Design: An observational, analytical, retrospective cohort study with longitudinal follow-up.

Setting: Hospital Universitario Príncipe de Asturias (HUPA).

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