1,688 results on '"Benavente OR"'
Search Results
2. Machine learning techniques for predicting neurodevelopmental impairments in premature infants: a systematic review.
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Ortega-Leon, Arantxa, Urda, Daniel, Turias, Ignacio J., Lubián-López, Simón P., and Benavente-Fernández, Isabel
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- 2025
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3. Incisional Hernia in Cytoreductive Surgery for Advanced-Stage Ovarian Cancer: A Single-Center Retrospective Study.
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Míguez Medina, Marta, Luzarraga, Ana, Catalán, Sara, Acosta, Úrsula, Hernández-Fleury, Alina, Bebia, Vicente, Monreal-Clua, Sonia, Angeles, Martina Aida, Bonaldo, Giulio, Gil-Moreno, Antonio, Pérez-Benavente, Asunción, and Sánchez-Iglesias, Jose Luis
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Simple Summary: The risk of hernia in patients that undergo cytoreductive laparotomic surgery for advanced ovarian cancer is high, ranging from 2 to 22% of cases. This topic is of great interest and has been very little studied. This is especially so with regard to the surgical closure method and the analysis of the specific risk factors for this group of patients. The aim of our study was to analyze the incidence of hernia in advanced ovarian cancer and identify the associated risk factors. Another aim was to evaluate the effectiveness of ERAS programs in reducing the development of hernias, due to the great impact this complication has on our patients. Background/Objectives: An incisional hernia (IH) is a frequent postoperative complication after cytoreductive laparotomic surgery for advanced ovarian cancer (AOC). It occurs in 2–22% of patients in the first two years of follow-up, depending on the series. Although different risk factors have been described for various types of malignancies and surgeries, few studies have analyzed the risk factors for hernia development in ovarian cancer (OC). However, none have examined the role of enhanced recovery after surgery (ERAS) programs. Methods: We performed a retrospective study that included patients with AOC and primary or interval debulking surgery through a median laparotomic approach. This study was conducted in Vall d'Hebron Hospital, Barcelona, Spain, between January 2015 and December 2022. Univariate and multivariate regression analyses were conducted. Results: Of the 156 patients included, 30 (19.2%) presented with an IH. The patients with IHs were smokers in a higher proportion to non-smokers (53.9% vs. 16.1%, p = 0.003) and more frequently presented with wound dehiscence (34.4% vs. 15.0%, p = 0.026). Patients in whom negative pressure wound therapy was applied had a hernia less frequently than those who had not had it (12.5% vs. 26.7%, p = 0.043). Similarly, the incidence of hernia decreased when patients went through an ERAS protocol (10.1% vs. 28.8%, p = 0.008). In the multivariate analysis, smoking was the only independent risk factor (RR 10.84, CI 2.76–42.64), and applying an ERAS protocol was seen to be the sole protective factor (RR 0.22, CI 0.08–0.61) against the development of an IH. Conclusions: The implementation of ERAS is highly recommended due to its numerous benefits, most notably the reduction in hernia incidence. Additionally, the preoperative identification of current smokers provides an opportunity for smoking cessation and targeted respiratory prehabilitation, both of which further contribute to IH reduction. [ABSTRACT FROM AUTHOR]
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- 2025
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4. Psychometric Properties of the School Support Scale (SSS) for a Sample of Chilean Adolescents.
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Chuecas, María Josefina, Benavente, Mariavictoria, Galdames, Alejandra, Alfaro, Jaime, and Ditzel, Ana Loreto
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RESEARCH funding ,SATISFACTION ,RESEARCH methodology evaluation ,MIDDLE school students ,PSYCHOMETRICS ,SCHOOL children ,METROPOLITAN areas ,RESEARCH methodology ,SOCIAL support ,STUDENT attitudes ,FACTOR analysis ,SCHOOL health services ,ADOLESCENCE - Abstract
This study assesses the psychometric properties of the School Support Scale (SSS), part of the CHKS's Resilience Youth Development Module (RYDM; Furlong et al., 2009), among 231 sixth- and seventh-grade students in urban public schools in Chile. Results indicated satisfactory psychometric properties, replicating a unifactorial structure observed in prior research (Hanson & Kim, 2007), where items related to caring relationships and high expectations loaded onto a single factor, school support. Significant correlations were found with measures of life satisfaction and school-related affect. These findings underscore the scale's utility in evaluating student perceptions of school support and highlight avenues for future research to enhance its applicability across diverse educational contexts. [ABSTRACT FROM AUTHOR]
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- 2025
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5. Insights into the origin, hybridisation and adaptation of Candida metapsilosis hybrid pathogens.
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del Olmo, Valentina, Redondo-Río, Álvaro, García, Alicia Benavente, Limtong, Savitree, Saus, Ester, and Gabaldón, Toni
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PATHOGENIC fungi ,GENETIC variation ,COLONIZATION (Ecology) ,GENOMICS ,PHENOTYPES - Abstract
Hybridisation is a source of genetic diversity, can drive adaptation to new niches and has been found to be a frequent event in lineages harbouring pathogenic fungi. However, little is known about the genomic implications of hybridisation nor its impact on pathogenicity-related traits. A common limitation for addressing these questions is the narrow representativity of sequenced genomes, mostly corresponding to strains isolated from infected patients. The opportunistic human pathogen Candida metapsilosis is a hybrid that descends from the crossing between unknown parental lineages. Here, we sequenced the genomes of five new C. metapsilosis isolates, one representing the first African isolate for this species, and four environmental isolates from marine niches. Our comparative genomic analyses, including a total of 29 sequenced strains, shed light on the phylogenetic relationships between C. metapsilosis hybrid isolates and show that environmental strains are closely related to clinical ones and belong to different clades, suggesting multiple independent colonisations. Furthermore, we identify a new diverging clade likely emerging from the same hybridisation event that originated two other previously described hybrid clades. Lastly, we evaluate phenotypes relevant during infection such as drug susceptibility, thermotolerance or virulence. We identify low drug susceptibility phenotypes which we suggest might be driven by loss of heterozygosity events in key genes. We discover that thermotolerance is mainly clade-dependent and find a correlation with the faecal origin of some strains which highlights the adaptive potential of the fungus as commensal. Author summary: Yeast pathogens of the Candida genus are estimated to cause almost a million deaths each year globally. Although most infections are caused by the five most common Candida species, the frequency of more rarely isolated species is increasing in the last few years. This is the case of Candida metapsilosis, a hybrid fungus of uncertain origin. Here we sequenced the genomes of several new strains, including the first African isolate and several environmental ones, to unravel the complex evolutionary history of this species. Our analysis revealed that environmental and clinical strains are closely related, suggesting that this fungus can easily transition between these habitats. We identified several divergent clades of hybrids, and to understand the implications of this genetic diversity, we investigated several traits relevant to infection, such as drug susceptibility and thermotolerance. We found that certain genetic variations can lead to reduced drug susceptibility, while thermotolerance seems to be largely influenced by the strain's evolutionary history. Our findings shed light on the complex biology of C. metapsilosis and its potential for causing infections. This knowledge can contribute to the development of more effective strategies for prevention and treatment. [ABSTRACT FROM AUTHOR]
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- 2025
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6. Characterizing the seismic response and basin structure of Cusco (Peru): implications for the seismic hazard assessment of a World Heritage Site.
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Combey, A., Mercerat, E. D., Díaz, J. E., Benavente, C. L., Perez, F. P., García, B., Palomino, A. R., and Guevara, C. J.
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EARTHQUAKE hazard analysis ,EARTH sciences ,GEOPHYSICAL surveys ,WORLD Heritage Sites ,SEISMIC response ,EARTHQUAKE intensity - Abstract
Known worldwide for its rich and well-preserved pre-Columbian and Spanish architecture, the city of Cusco (Peru) is listed as a World Heritage Site since 1983. However, less well known is the seismic hazard, which represents a major threat to the city's 400,000 inhabitants and its cultural outreach. Despite the moderate magnitudes recorded in the area, macroseismic data inferred from historical earthquakes (1650, 1950) argues for strong amplification effects of the unconsolidated sediments of the Cusco Basin during ground motion. In order to address this aggravating factor for the first time, we conducted a large-scale passive geophysical survey in the historical city center of Cusco, combining Microtremor Horizontal-to-Vertical Spectral Ratio (MHVSR) measurements and Microtremor Array Measurements (MAM). Through joint data inversion, we proposed a subsurface wave velocity model and estimated the depth of the engineering bedrock. The site response analysis not only provides an insight into the thickness of the soft sediment, but also suggests the existence of a strong geological discontinuity beneath the city center of Cusco, consistent with the trace of the Cusco fault. Moreover, the results highlight the complexity of earthquake site amplification assessment in dense urban areas. Our work paves the way for a comprehensive seismic microzonation of the entire Cusco Basin and opens up new perspectives on the potential of the MHVSR method for fault detection. [ABSTRACT FROM AUTHOR]
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- 2025
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7. Use of Modified Activated Carbon in Groundwater Remediation for Human Consumption.
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María Lorena, Cadme-Arévalo, Verónica Cristina, Andrade-Yucailla, Alda, Geijo López, Ronald Oswaldo, Villamar-Torres, Lorena, Campisi Cadme Raisha, Sarah, Arreaga Cadme Thais, Javier, Fernández González, José, Benavente Herrera, Aransiola, Sesan Abiodun, and Maddela, Naga Raju
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ENERGY dispersive X-ray spectroscopy ,ACTIVATED carbon ,RICE hulls ,ATOMIC force microscopy ,WATER purification - Abstract
This study aimed to produce activated carbon from desilicated rice husks using various carbonization and activation methods, including a tube furnace, muffle furnace, and artisanal pyrolysis. The resulting activated carbons were characterized for their adsorptive capacity through the determination of iodine number and methylene blue adsorption; these are key indicators of specific surface area and adsorbent quality. Advanced characterization techniques were employed, such as scanning electron microscopy (SEM), which revealed a highly porous and irregular surface structure, and energy dispersive X-ray spectroscopy (EDS), confirming the effective removal of impurities and optimization of the elemental composition. Atomic force microscopy (AFM) demonstrated favorable surface roughness for adsorption processes. Among the samples, CaDH162-CADH53 exhibited the highest performance, with an iodine number of 1094.8 mg/g and a yield of 93.5%, signifying a high adsorption capacity. The activation treatments with phosphoric acid and calcium carbonate significantly improved the porous structure, further enhancing the material's adsorptive properties. In conclusion, the activated carbons produced in this study demonstrated optimal physicochemical properties for water purification and contaminant treatment applications. These findings highlight the potential of using agricultural waste, such as rice husk, as a sustainable and scalable alternative for industrial-scale activated carbon production. [ABSTRACT FROM AUTHOR]
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- 2025
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8. Peruvian medical residency selection: a portrayal of scores, distribution, and predictors of 28,872 applicants between 2019 and 2023.
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Flores-Cohaila, Javier A., Miranda-Chavez, Brayan, Copaja-Corzo, Cesar, Benavente-Chalco, Xiomara C., Rios-García, Wagner, Moreno-Ccama, Vanessa P., Samanez-Obeso, Angel, and Rivarola-Hidalgo, Marco
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RESIDENTS (Medicine) ,LINEAR statistical models ,MEDICAL education ,NATIONAL competency-based educational tests ,MEDICAL schools - Abstract
Background: Residency selection is crucial for enhancing the healthcare workforce. Most research on this topic arises from the global north, leaving a gap from the global south perspective. Hence, this study aimed to evaluate factors associated with the Peruvian National Residency Examination (ENARM) in Peruvian applicants. Methods: A repeated cross-sectional analytical study was conducted using data from applicants to the Peruvian ENARM from 2019 to 2023. The data were sourced from the National Council of Medical Residency's webpage and analyzed using descriptive statistics and linear mixed-effect models. Results: The final population consisted of 28,872 (95.06%) of applicants between 2019 and 2023. The mean ENARM score was 11.69, with a pass rate of 61.6% if a standard setting was set at 11. The highest scores were seen in those who achieved scores above 13 in the ENAM and received honors in medical school, while the lowest in those who applied in the captive modality and did not take the ENAM. Most applicants were concentrated in Lima and applied to Surgery, Pediatrics, and Obstetric-Gynecology. The ENAM score was positively associated with the ENARM in the mixed model when adjusting for receiving, year, setting of application, modality, and application specialty. Conclusions: ENAM scores and honors in medical school were most associated with ENARM; hypothetically, 4 out of 10 applicants would fail the ENARM. Moreover, we portrayed the disparities in Peruvian medical education that point toward the quality of medical education, its centralization in the Peruvian capital, and the power dynamics between specialties. [ABSTRACT FROM AUTHOR]
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- 2025
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9. A comprehensive investigation of Clerodendrum Infortunatum Linn. using LC-QTOF-MS/MS metabolomics as a promising anti-alzheimer candidate.
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Atef, Fatma, Abdelkawy, Mostafa A., Eltanany, Basma M., Pont, Laura, Fayez, Ahmed M., Abdelhameed, Mohamed F., Benavente, Fernando, Younis, Inas Y., and Otify, Asmaa M.
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ORGANIC acids ,SCOPOLAMINE ,TROPANES ,PHENYLPROPANOIDS ,ALZHEIMER'S disease ,FATTY acid derivatives ,BIOACTIVE compounds - Abstract
Alzheimer's disease (AD) poses a global health challenge, demanding innovative approaches for effective treatments. Clerodendrum infortunatum Linn. (Lamiaceae) is a shrub traditionally used as a medicinal plant to treat inflammation, skin diseases, and bronchitis. This study aims to identify the main bioactive metabolites in C. infortunatum using LC-QTOF-MS/MS and investigate its potential in protecting against cognitive decline in rats with scopolamine-induced AD disease. Metabolite profiling was performed on the methanol extract of the plant's aerial parts using LC-QTOF-MS/MS. The inhibitory activity of the acetylcholinesterase enzyme was measured in vitro. To evaluate the cognitive effects, the methanol extract was orally administered at three doses (100, 200, and 400 mg/kg) to scopolamine-induced AD rats, and their cognitive functions were assessed using the novel object recognition test. Additionally, acetylcholinesterase enzyme activity, as well as the levels of acetylcholine, dopamine, noradrenaline, glutathione, malondialdehyde, tumor necrosis factor-α, interleukin-1β, and amyloid-β in the rat hippocampus, were measured using ELISA, followed by histopathological evaluation. A total of 79 metabolites, spanning various chemical classes, such as organic acids, phenolic acids, phenylpropanoids and phenylethanoids, flavonoids, coumarins, other phenolics, and fatty acids and their derivatives, were identified. The results showed that the extract promoted enhanced cognitive functions in the novel object recognition test. Scopolamine administration significantly altered the acetylcholinesterase enzyme activity and biomarker levels in the rat's hippocampus. However, treatment with C. infortunatum at 200 and 400 mg/kg almost restored these neurotransmitter levels to normal, which was further confirmed by histopathological analysis. This study demonstrates the therapeutic potential of C. infortunatum in mitigating cognitive decline in AD, with its first metabolite profiling revealing a range of bioactive compounds. The extract improved cognitive function in scopolamine-induced AD rats, restored acetylcholinesterase activity, normalized neurotransmitter levels, and reduced oxidative stress and inflammation. These findings suggest that C. infortunatum is a promising candidate for the development of natural therapies targeting AD. [ABSTRACT FROM AUTHOR]
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- 2025
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10. Effect of Cerebral Oximetry-Guided Treatment on Brain Injury in Preterm Infants as Assessed by Magnetic Resonance Imaging at Term Equivalent Age: An Ancillary SafeBoosC-III Study.
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Alsina-Casanova, Miguel, Lühr-Hansen, Mathias, Aldecoa-Bilbao, Victoria, Del Rio, Ruth, Maton, Pierre, Sarafidis, Kosmas, Zafra-Rodriguez, Pamela, Vesoulis, Zachary Andrew, Mastretta, Emmanuele, Bresesti, Ilia, Gomez-Chiari, Marta, Rebollo, Mónica, Khamis, Jamil, Baltatzidis, Angelos, Benavente-Fernandez, Isabel, Shimony, Joshua, Morana, Giovanni, Agosti, Massimo, Carreras, Nuria, and Cuaresma, Adriana
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MAGNETIC resonance imaging ,PREMATURE infants ,BRAIN injuries ,INTRACLASS correlation ,NEAR infrared spectroscopy - Abstract
Introduction: The SafeBoosC-III trial investigated the effect of cerebral oximetry-guided treatment in the first 72 h after birth on mortality and severe brain injury diagnosed by cranial ultrasound in extremely preterm infants (EPIs). This ancillary study evaluated the effect of cerebral oximetry on global brain injury as assessed by magnetic resonance imaging (MRI) at term equivalent age (TEA). Methods: MRI scans were obtained between 36 and 44.9 weeks PMA. The Kidokoro score was independently evaluated by two blinded assessors. The intervention effect was assessed using the nonparametric Wilcoxon rank sum test for median difference and 95% Hodges-Lehmann (HL) confidence intervals (CIs). The intraclass correlation coefficient (ICC) was used to assess the agreement between the assessors. Results: A total of 210 patients from 8 centers were included, of whom 121 underwent MRI at TEA (75.6% of alive patients): 57 in the cerebral oximetry group and 64 in the usual care group. There was an excellent correlation between the assessors for the Kidokoro score (ICC agreement: 0.93, 95% CI: 0.91–0.95). The results showed no significant differences between the cerebral oximetry group (median 2, interquartile range [IQR]: 1–4) and the usual care group (median 3, IQR: 1–4; median difference −1 to 0, 95% HLCI: −1 to 0; p value 0.1196). Conclusions: In EPI, the use of cerebral oximetry-guided treatment did not lead to significant alterations in brain injury, as determined by MRI at TEA. The strong correlation between the assessors highlights the potential of the Kidokoro score in multicenter trials. Plain Language Summary: Our study looked at whether monitoring the cerebral oxygenation by a specific tool can help protect the brains of very premature babies. We wanted to see if this tool could reduce the chances of any degree of brain injury in these tiny babies. The SafeBoosC-III was a big multicenter trial that found that using cerebral oximetry did not make a big difference in preventing severe brain injuries or saving lives in these babies. To study in more depth a representative group of babies in this big trial, we used advanced brain scans like MRI to check babies' brain health. Even though we noticed a small improvement in overall brain health when using cerebral oximetry, it was not enough to show a clear benefit. It is important to note that only one baby out of every five had severe brain injuries in the study. Our research shows that while cerebral oximetry is helpful for monitoring brain oxygen levels, it did not lead to noticeable changes in how often brain injuries happened in premature babies. This tells us that we still have more to learn about protecting these fragile babies' brains, and we need to keep looking for better ways to help them. In conclusion, our study highlights the challenges in using cerebral oximetry to prevent brain injuries in very premature babies, urging doctors and researchers to keep exploring new ideas to improve their brain health. [ABSTRACT FROM AUTHOR]
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- 2025
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11. Cognitive Assessment of Very Preterm School-age Children by Chronological vs. Corrected Age.
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Sánchez-Sandoval, Yolanda, Lambrisca, Agustina, Benavente-Fernández, Isabel, Lacalle, Laura, and Martínez-Shaw, Melissa L.
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SCHOOL children ,AGE ,INTELLIGENCE levels ,PREMATURE labor ,SPANIARDS - Abstract
Copyright of Psicologia Educativa is the property of Colegio Oficial de Psicologos de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2025
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12. Developmental anatomy of the thalamus, perinatal lesions, and neurological development.
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Govaert, Paul, Arena, Roberta, Dudink, Jeroen, Steggerda, Sylke, Agut, Thais, Marissens, Gertjan, Hoebeek, Freek, Thais, Agut, Alarcon, Ana, Arnaez, Juan, Bartocci, Marco, Benavente‐Fernández, Isabel, Bravo, Maria Carmen, Cabañas, Fernando, Carreras, Nuria Blesa, Claris, Olivier, Fumagalli, Monica, Garcia‐Alix, Alfredo, Horsch, Sandra, and Lubián‐López, Simón Pedro
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THALAMIC nuclei ,NEWBORN infants ,THALAMUS ,ANATOMY ,NEURONS - Abstract
The thalamic nuclei develop before a viable preterm age. GABAergic neuronal migration is especially active in the third trimester. Thalamic axons meet cortical axons during subplate activation and create the definitive cortical plate in the second and third trimesters. Default higher‐order cortical driver connections to the thalamus are then replaced by the maturing sensory networks, in a process that is driven by first‐order thalamic neurons. Surface electroencephalographic activity, generated first in the subplate and later in the cortical plate, gradually show oscillations based on the interaction of the cortex with thalamus, which is controlled by the thalamic reticular nucleus. In viable newborn infants, in addition to sensorimotor networks, the thalamus already contributes to visual, auditory, and pain processing, and to arousal and sleep. Isolated thalamic lesions may present as clinical seizures. In addition to asphyxia and stroke, infection and network injury are also common. Cranial ultrasound can be used to classify neonatal thalamic injuries based on functional parcelling of the mature thalamus. We provide ample illustration and a detailed description of the impact of neonatal focal thalamic injury on neurological development, and discuss the potential for neuroprotection based on thalamocortical plasticity. [ABSTRACT FROM AUTHOR]
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- 2025
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13. Characterizing the spatial correlation of coseismic slip distributions: a data driven Bayesian approach.
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Marchant-Cáceres, G, Benavente, R, Becerra-Carreño, V, Crempien, J G F, and Morales-Yañez, C
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EARTHQUAKE hazard analysis ,PROBABILITY density function ,AKAIKE information criterion ,EARTHQUAKES ,BAYESIAN field theory ,TSUNAMI warning systems - Abstract
The spatial correlation of coseismic slip is a necessary input for generating stochastic seismic rupture models, which are commonly used in seismic and tsunami hazard assessments. To date, the spatial correlation of individual earthquakes is characterized using finite fault models by finding the combination of parameters of a von Kármán autocorrelation function that best fits the observed autocorrelation function of the finite fault model. However, because a priori spatial correlation conditions (i.e. not in the data) are generally applied in finite fault model generation, the results obtained using this method may be biased. Additionally, robust uncertainty estimates for spatial correlations of coseismic slip are generally not performed. Considering these limitations in the classic method, here, a method is developed based on a Bayesian formulation of Finite Fault Inversion (FFI) with positivity constraints. This method allows for characterizing the spatial correlation of coseismic slip and its uncertainties for an earthquake by using samples of coseismic slip from a posterior probability density function (PDF). Furthermore, a Bayesian model selection criterion called Akaike Bayesian Information Criterion (ABIC) is applied to objectively choose between different prior spatial correlation schemes before computing the posterior, to reduce subjectivity due to this prior condition. The ABIC is calculated using an approximate analytical expression of Bayesian evidence. The method is applied to simulated P waves, demonstrating that model selection allows for objectively estimating the most suitable prior spatial correlation scheme in FFI. Additionally, the target spatial correlation of coseismic slip is accurately recovered using samples from the posterior PDF, as well as their uncertainties. Moreover, in the simulated experiment, it is shown that a non-robust choice of the prior spatial correlation scheme can significantly bias the estimated spatial correlations of coseismic slip. We apply our method to observed P waves from the 2015, Illapel earthquake (|$M_{\rm w} = 8.3$|), finding that the spatial correlation of coseismic slip of this earthquake is better described by a von Kármán ACF, with mean correlation lengths of around 47 km and Hurst parameter of 0.58. We conclude that using our method reduces biases associated with prior spatial correlation conditions and allows for robust estimation of spatial correlations of coseismic slip and their uncertainties. [ABSTRACT FROM AUTHOR]
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- 2025
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14. Detection of Prions in Wild Pigs (Sus scrofa) from Areas with Reported Chronic Wasting Disease Cases, United States.
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Soto, Paulina, Bravo-Risi, Francisca, Benavente, Rebeca, Stimming, Tucker H., Bodenchuk, Michael J., Whitley, Patrick, Turnage, Clint, Spraker, Terry R., Greenlee, Justin, Telling, Glenn, Malmberg, Jennifer, Gidlewski, Thomas, Nichols, Tracy, Brown, Vienna R., and Morales, Rodrigo
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CHRONIC wasting disease ,WILD boar ,PRIONS ,SWINE ,EPIDEMIOLOGY - Abstract
Using a prion amplification assay, we identified prions in tissues from wild pigs (Sus scrofa) living in areas of the United States with variable chronic wasting disease (CWD) epidemiology. Our findings indicate that scavenging swine could play a role in disseminating CWD and could therefore influence its epidemiology, geographic distribution, and interspecies spread. [ABSTRACT FROM AUTHOR]
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- 2025
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15. The Foundation Supporting Future Assessments of Education Program Outcomes Among Providers of Advanced Practice Respiratory Therapy.
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Shaw, Robert, Vines, David, Benavente, Jennifer, and Keene, Shane
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PHYSICIAN supply & demand ,RESPIRATORY therapists ,OUTCOME assessment (Education) ,RESPIRATORY therapy ,EDUCATIONAL standards ,PHYSICIANS' assistants - Abstract
There are physician shortages in the United States including in the cardiopulmonary specialty. Nonphysician advanced practice providers, including nurse practitioners or physician assistants, have been proposed to meet some more routine patient care needs. A supplementary provider called an advanced practice respiratory therapist (APRT) has been proposed. Such personnel start as respiratory therapists followed by training in a graduate degree program. The Commission on Accreditation for Respiratory Care has published a set of standards for such an education program, and one program has begun to train APRTs. The Commission on Accreditation for Respiratory Care requires each accredited program to publish its outcomes. The respiratory therapy credentialing board, the National Board for Respiratory Care, has undertaken stewardship of assessing APRT education program outcomes. The research question asks whether there is national support to develop a standardized assessment of graduates' performances near the end of an APRT education program. This paper describes methods used during this study of the nascent APRT role, which informed decisions of an advisory committee as they considered what content to assess and how to design the measurement instrument. The study exposed a set of survey-derived metrics about potential content signaling whether there was endorsement among physicians, nonphysician advanced practice providers, and APRT graduates. Metrics are described from these and other subgroups plus the committee's decisions are explained about what content to assess and how. Most of the surveyed content was endorsed for being part of the APRT role; therefore, the committee proceeded to make design decisions about the outcome assessment. [ABSTRACT FROM AUTHOR]
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- 2025
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16. Breeding Alnus species for resistance to Phytophthora disease in the Iberian Peninsula.
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Cordeiro, Daniela, Pizarro, Alberto, Vélez, M. Dolores, Guevara, M. Ángeles, de María, Nuria, Ramos, Paula, Cobo-Simón, Irene, Diez-Galán, Alba, Benavente, Alfredo, Ferreira, Verónica, Martín, M. Ángela, Rodríguez-González, Patricia M., Solla, Alejandro, Cervera, M. Teresa, Diez-Casero, Julio Javier, Cabezas, José Antonio, and Díaz-Sala, Carmen
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FOREST management ,NATURAL resources management ,GERMPLASM ,FOREST resilience ,MOLECULAR biology ,ALDER - Abstract
Alders are widely distributed riparian trees in Europe, North Africa and Western Asia. Recently, a strong reduction of alder stands has been detected in Europe due to infection by Phytophthora species (Stramenopila kingdom). This infection causes a disease known as alder dieback, characterized by leaf yellowing, dieback of branches, increased fruit production, and bark necrosis in the collar and basal part of the stem. In the Iberian Peninsula, the drastic alder decline has been confirmed in the Spanish Ulla and Ebro basins, the Portuguese Mondego and Sado basins and the Northern and Western transboundary hydrographic basins of Miño and Sil, Limia, Douro and Tagus. The damaging effects of alder decline require management solutions that promote forest resilience while keeping genetic diversity. Breeding programs involve phenotypic selection of asymptomatic individuals in populations where severe damage is observed, confirmation of tree resistance via inoculation trials under controlled conditions, vegetative propagation of selected trees, further planting and assessment in areas with high disease pressure and different environmental conditions and conservation of germplasm of tolerant genotypes for reforestation. In this way, forest biotechnology provides essential tools for the conservation and sustainable management of forest genetic resources, including material characterization for tolerance, propagation for conservation purposes, and genetic resource traceability, as well as identification and characterization of Phytophthora species. The advancement of biotechnological techniques enables improved monitoring and management of natural resources by studying genetic variability and function through molecular biology methods. In addition, in vitro culture techniques make possible large-scale plant propagation and long-term conservation within breeding programs to preserve selected outstanding genotypes. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Experimental Myopia Results in Peripapillary Ganglion Cell and Astrocyte Reorganization with No Functional Implications During Early Development.
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Ablordeppey, Reynolds Kwame, Lin, Carol Ren, Srinivas, Miduturu, and Benavente-Perez, Alexandra
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GLIAL fibrillary acidic protein ,CALLITHRIX jacchus ,OPTICAL coherence tomography ,NERVE fibers ,MYOPIA ,RETINAL ganglion cells - Abstract
Myopic eye growth induces mechanical stretch, which can lead to structural and functional retinal alterations. Here, we investigated the effect of lens-induced myopic growth on the distribution of retinal ganglion cells (RGCs), glial fibrillary acidic protein (GFAP) expression and intensity, and peripapillary retinal nerve fiber layer (ppRNFL) thickness in common marmosets (Callithrix jacchus) induced with myopia continuously for six months, using immunohistochemistry and spectral-domain optical coherence tomography. We also explored the relationship between cellular structural parameters and the photopic negative response (PhNR) using full-field electroretinography. Marmosets induced with myopia for six months developed axial myopia, had a thinner ppRNFL, reduced peripapillary ganglion cell (≈20%) and astrocyte density (≈42%), increased panretinal GFAP expression (≈42%) and nasal mid-periphery staining intensity (≈81%) compared to age-matched controls. Greater degrees of myopia and vitreous elongation were associated with reduced peripapillary RGCs and astrocyte density, and increased GFAP expression and intensity. These cellular structural changes did not show a significant relationship with the features of the PhNR, which remained unchanged. The outcomes of this study suggest that myopia induces a reorganization of the peripapillary inner retina at the cellular level that may not result in measurable functional repercussions at this stage of myopia development. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Securing the Future of Railway Systems: A Comprehensive Cybersecurity Strategy for Critical On-Board and Track-Side Infrastructure.
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Ibadah, Nisrine, Benavente-Peces, César, and Pahl, Marc-Oliver
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CYBER physical systems ,INFRASTRUCTURE (Economics) ,ARTIFICIAL intelligence ,RAILROAD safety measures ,LEGACY systems - Abstract
The growing prevalence of cybersecurity threats is a significant concern for railway systems, which rely on an extensive network of onboard and trackside sensors. These threats have the potential to compromise the safety of railway operations and the integrity of the railway infrastructure itself. This paper aims to examine the current cybersecurity measures in use, identify the key vulnerabilities that they address, and propose solutions for enhancing the security of railway infrastructures. The report evaluates the effectiveness of existing security protocols by reviewing current standards, including IEC62443 and NIST, as well as case histories of recent rail cyberattacks. Significant gaps have been identified, especially where modern and legacy systems need to be integrated. Weaknesses in communication protocols such as MVB, CAN and TCP/IP are identified. To address these challenges, the paper proposes a layered security framework specific to railways that incorporate continuous monitoring, risk-based cybersecurity modeling, AI-assisted threat detection, and stronger authentication methodologies. The aim of these recommendations is to improve the resilience of railway networks and ensure a safer, more secure infrastructure for future operations. [ABSTRACT FROM AUTHOR]
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- 2024
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19. A Practical Clinical Approach to Navigate Pulmonary Embolism Management: A Primer and Narrative Review of the Evolving Landscape.
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Benavente, Kevin, Fujiuchi, Bradley, Virk, Hafeez Ul Hassan, Kavali, Pavan K., Ageno, Walter, Barnes, Geoffrey D., Righini, Marc, Alam, Mahboob, Rosovsky, Rachel P., and Krittanawong, Chayakrit
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PULMONARY embolism ,ORAL medication ,INTEGRATED health care delivery ,THROMBECTOMY ,THROMBOLYTIC therapy ,EXTRACORPOREAL membrane oxygenation - Abstract
Advances in imaging, pharmacological, and procedural technologies have rapidly expanded the care of pulmonary embolism. Earlier, more accurate identification and quantification has enhanced risk stratification across the spectrum of the disease process, with a number of clinical tools available to prognosticate outcomes and guide treatment. Direct oral anticoagulants have enabled a consistent and more convenient long-term therapeutic option, with a greater shift toward outpatient treatment for a select group of low-risk patients. The array of catheter-directed therapies now available has contributed to a more versatile and nuanced armamentarium of treatment options, including ultrasound-facilitated thrombolysis and mechanical thrombectomy. Research into supportive care for pulmonary embolism have explored the optimal use of vasopressors and volume resuscitation, as well as utilization of various devices, including right ventricular mechanical support and extracorporeal membrane oxygenation. Even in the realm of surgery, outcomes have steadily improved in experienced centers. This rapid expansion in diagnostic and therapeutic data has necessitated implementation of pulmonary embolism response teams to better interpret the available evidence, manage the utilization of advanced therapies, and coordinate multidisciplinary care. We provide a narrative review of the risk stratification and management of pulmonary embolism, with a focus on structuralizing the multidisciplinary approach and organizing the literature on new and emerging therapies. [ABSTRACT FROM AUTHOR]
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- 2024
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20. Therapeutic perspectives for prion diseases in humans and animals.
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Benavente, Rebeca and Morales, Rodrigo
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CHRONIC wasting disease ,SMALL interfering RNA ,CREUTZFELDT-Jakob disease ,PRION diseases ,CHEMICAL libraries ,SCRAPIE ,CELL culture ,PRIONS - Abstract
The article published in PLoS Pathogens discusses therapeutic perspectives for prion diseases in humans and animals. Prion diseases are neurodegenerative disorders caused by misfolded prion proteins. The research focuses on developing anti-prion therapies targeting different aspects of the protein misfolding process, including strategies to reduce the expression of prion proteins and inhibit the conversion of normal prion proteins into disease-associated forms. Various approaches have been explored, but significant challenges remain in developing effective treatments due to the complexity of prion strains and the lack of sensitive detection methods for early diagnosis. [Extracted from the article]
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- 2024
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21. Clinical effects of re-evaluating a lung SBRT failure mode and effects analysis in a radiotherapy department.
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Benavente, Sergi, Giraldo, Alexandra, Seoane, Alejandro, Ramos, Mónica, and Vergés, Ramona
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Purpose: The increasing complexity of radiation treatments can hinder its clinical success. This study aimed to better understand evolving risks by re-evaluating a Failure Mode and Effects Analysis (FMEA) in lung SBRT. Methods: An experienced multidisciplinary team conducted an FMEA and made a reassessment 3 years later. A process map was developed with potential failure modes (FMs) identified. High-risk FMs and their possible causes and corrective actions were determined. The initial FMEA analysis was compared to gain a deeper perspective. Results: We identified 232 FMs. The high-risk processes were plan approval, target contouring, and patient evaluation. The corrective measures were based on stricter standardization of plan approval, pre-planning peer review, and a supporting pretreatment checklist, which substantially reduced the risk priority number in the revised FMEA. In the FMEA reassessment, we observed that the increased complexity and number of patients receiving lung SBRT conditioned a more substantial presence of human factors and communication errors as causal conditions and a potential wrong dose as a final effect. Conclusions: Conducting a lung SBRT FMEA analysis has identified high-risk conditions that have been effectively mitigated in an FMEA reanalysis. Plan approval has shown to be a weak link in the process. The increasing complexity of treatments and patient numbers have shifted causal factors toward human failure and communication errors. The potential of a wrong dose as a final effect augments in this scenario. We propose that digital and artificial intelligence options are needed to mitigate potential errors in high-complexity and high-risk RT scenarios. [ABSTRACT FROM AUTHOR]
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- 2024
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22. Cerebral Doppler imaging in neonates: A guide for clinical application and diagnosis.
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Horsch, Sandra, Schwarz, Simone, Arnaez, Juan, Steggerda, Sylke, Arena, Roberta, Govaert, Paul, Agut, Thais, Alarcon, Ana, Bartocci, Marco, Benavente‐Fernández, Isabel, Bravo, Maria Carmen, Cabañas, Fernando, Carreras, Nuria Blesa, Claris, Olivier, Dudink, Jeroen, Fumagalli, Monica, Garcia‐Alix, Alfredo, Lubián‐López, Simón Pedro, Mühlbacher, Tobias, and Parodi, Alessandro
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MAGNETIC resonance angiography ,MAGNETIC resonance imaging ,NEONATAL intensive care units ,DOPPLER ultrasonography ,MAGNETIC resonance - Abstract
Cranial ultrasound reliably diagnoses many neonatal brain disorders. Adding Doppler imaging expands the spectrum by providing information on the status of the vasculature and haemodynamics that may guide further diagnostic and clinical management. Doppler imaging may identify neonates with congenital or acquired vascular abnormalities such as perinatal stroke, sinuvenous thrombosis, vein of Galen malformation, dural sinus malformation, sinus pericranii, and developmental venous anomaly. These entities may need further investigation with complementary imaging modalities such as magnetic resonance imaging and magnetic resonance angiography, or conventional angiography. This review aims to help clinicians to improve their Doppler sonography knowledge and skills in order to use this helpful tool in neonates with neurological symptoms or suspected cerebral vascular abnormalities admitted to the neonatal intensive care unit. [ABSTRACT FROM AUTHOR]
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- 2024
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23. Quantifying Methane Emissions Using Satellite Data: Application of the Integrated Methane Inversion (IMI) Model to Assess Danish Emissions.
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Vara-Vela, Angel Liduvino, Rojas Benavente, Noelia, Nielsen, Ole-Kenneth, Nascimento, Janaina Pinto, Alves, Rafaela, Gavidia-Calderon, Mario, and Karoff, Christoffer
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COVID-19 pandemic ,SPRING ,METROPOLITAN areas ,AUTUMN ,METHANE - Abstract
After stabilizing in the mid-2000s, atmospheric methane (CH
4 ) levels have accelerated over the past decade. In response, satellite-based inversion techniques have been employed to meet the increasing demands of the climate community. In this study, the Integrated Methane Inversion (IMI) model, a novel approach based on the TROPOspheric Monitoring Instrument (TROPOMI), is used to quantify CH4 emissions across Denmark. Over 900,000 TROPOMI observations from spring to early autumn of 2018–2022 were used to inform the inversions. Overall, TROPOMI CH4 concentrations within the inversion domain showed an upward trend of approximately 12.71 ppb per year, reflecting the global trend. Excluding 2022, which included only four months of data, the inversions suggest an underestimation of emissions by 190(160–215) × 103 tonnes, or 66(56–75)% of prior estimates. Northern and southern Jutland, along with the Copenhagen metropolitan area, were identified as key sources of CH4 emissions. Additionally, the inversions indicated a decline in emissions during the COVID-19 pandemic, despite stable activity data. This study demonstrates the feasibility of using the IMI model to monitor CH4 emissions in small countries like Denmark, offering a satellite-based perspective to better identify and mitigate these emissions. [ABSTRACT FROM AUTHOR]- Published
- 2024
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24. Aceptación, Respeto y Aprecio por la Diversidad: Análisis Psicométrico de una Escala de Tolerancia en Chile.
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Sirlopú, David, Pérez-Salas, Claudia, Cuadrado Guirado, Isabel, and Benavente, Mariavictoria
- Abstract
Copyright of Revista Iberoamericana de Diagncstico y Evaluacicn Psicolcgica is the property of Asociacion Iberoamericana de Diagnostico y Evaluacion Psicologica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2024
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25. System Genetics Analysis Reveals Sex Differences in Human Aortic Smooth Muscle Gene Expression.
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Meng, Sarah L, Anane-Wae, Rita, Benavente, Ernest Diez, and Aherrahrou, Redouane
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GENE expression ,CORONARY artery disease ,ATHEROSCLEROTIC plaque ,MYOCARDIAL infarction ,TRAFFIC accidents - Abstract
Background: Coronary artery disease (CAD) is one of the leading causes of death worldwide. The buildup of atherosclerotic plaque, including lipids and cellular waste, characterizes this disease. Smooth muscle cells (SMCs) can migrate and proliferate to form a fibrous cap that stabilizes the atherosclerotic plaque in response to plaque buildup. However, in some severe cases, the fibrous cap is unable to prevent plaque rupture, which can lead to a thrombotic event causing a stroke or myocardial infarction. Studies have been conducted to identify genes associated with this disease. However, the influence of sex on CAD risk is poorly understood due to the complexity of the disease and the lack of women in clinical studies. Methods: This study is investigated with a unique collection of human aortic smooth muscle cells (huASMCs) derived from 118 male and 33 female individuals who either underwent a heart transplant or were victims of motor vehicle accidents. In this investigation, we explore differentially expressed genes between males and females related to atherosclerosis using a unique RNAseq dataset of human aortic SMCs. Results: Our study identified 8 genes (CHST1, DKK2, DLL4, EIF1AXP1, GALNT13, NOTCH4, SELL, SPARCL1) that exhibit sex-biased effects in SMCs. Of these, 6 genes were found in the Athero-Express dataset and 5 of them were associated with atherosclerosis-relevant phenotypes. We discovered a novel NOTCH4/DLL4 pathway that plays a role in the differential expression of these genes between males and females. This pathway is linked to coronary artery physiology and may play a role in the pathophysiology of coronary artery disease that differs between the sexes. Conclusions: Overall, this investigation shows that differentially expressed genes between males and females in human aortic SMCs exist. [ABSTRACT FROM AUTHOR]
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- 2024
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26. NeoVault: empowering neonatal research through a neonate data hub.
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Pigueiras-del-Real, Janet, Ruiz-Zafra, Angel, Benavente-Fernández, Isabel, Lubián-López, Simón P., Shah, Syed Adil Hussain, Shah, Syed Taimoor Hussain, and Gontard, Lionel C.
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PREMATURE infants ,NEONATAL intensive care ,THIRD-party software ,MEDICAL personnel ,NEWBORN infants - Abstract
Background: Stability during early postnatal life in preterm infants is related to better outcomes. Although vital signs are monitored continuously in Neonatal Intensive Care Unites, this monitoring does not include all physiological parameters nor data such as movement patterns. Although there are scattered sources of data, there is no centralized data hub for neonates information. Results: We have created the first neonate data hub for easy and interactive access to upload or download postural, physiological, and medical data of neonates: NeoVault. NeoVault is a platform that provides access to information through two interfaces: 1) via a Web interface (designed for medical personnel, data scientists, researchers); and 2) via a RESTful API (Application Programming Interfaces) -designed for developers-, aiming to integrate access to information into third-party applications. The web access allows searching and filtering according to specific parameters, visualization of data through graphs and images, and generation of datasets in CSV format. Access through the RESTful API is described in OpenAPI, enabling access to information from any device, facilitating it in an interoperable format. Currently, it contains nearly 800,000 postural records and 3.000 physiological data entries. The physiological and postural data stored for each neonate in NeoVault are collected through the NRP (Neonates Recording Platform) tool, which allows for the automatic and reliable collection of data. Conclusion: NeoVault is an open platform for simple access to postural, physiological, and medical data of neonates that can be utilized by researchers, data scientists, medical personnel, and programmers. It enables integration into third-party applications and the generation of customized datasets. [ABSTRACT FROM AUTHOR]
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- 2024
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27. An Initial Exploratory Examination of the Sensitivity and Specificity of MyCog Mobile Using the Mini-Cog as a Proxy for Suspected Cognitive Impairment.
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Young, Stephanie Ruth, Dworak, Elizabeth, Byrne, Greg, Shono, Yusuke, Zhang, Manrui, Yoshino Benavente, Julia, Yao, Lihua, Bass, Mike, Curtis, Laura, Varela Diaz, Maria, Jones, Callie, Gershon, Richard, Wolf, Michael, and Nowinski, Cindy
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COGNITION disorders diagnosis ,MOBILE apps ,PREDICTION models ,RESEARCH funding ,PRIMARY health care ,LOGISTIC regression analysis ,EXECUTIVE function ,QUESTIONNAIRES ,DESCRIPTIVE statistics ,RESEARCH ,NEUROPSYCHOLOGICAL tests ,MEDICAL screening ,EARLY diagnosis ,COMPARATIVE studies ,MEDICAL care for older people ,DATA analysis software ,SENSITIVITY & specificity (Statistics) ,OLD age - Abstract
Objectives: To help promote early detection of cognitive impairment in primary care, MyCog Mobile was designed as a cognitive screener that can be self-administered remotely on a personal smartphone. We explore the potential utility of MyCog Mobile in primary care by comparing MyCog Mobile to a commonly used screener, Mini-Cog. Methods: A sample of 200 older adults 65+ years (mean age = 72.56 years), completed the Mini-Cog and MyCog Mobile, which includes 2 memory measures and 2 executive functioning measures. A logistic regression model was conducted to predict failing Mini-Cog scores (≤2) based on MyCog Mobile measures. Results: A total of 20 participants earned a Mini-Cog score ≤2. MyCog Mobile demonstrated an AUC of 0.83 (95% bootstrap CI [0.75, 0.95]), sensitivity of 0.76 (95% bootstrap CI [0.63, 0.97]), and specificity of.88 (95% bootstrap CI [0.63, 0.10]). The subtest Name Matching from MyFaces and MySorting were the only significant predictors of failed Mini-Cogs. Conclusions: MyCog Mobile demonstrated sensitivity and specificity to identify participants who failed the Mini-Cog, and may show promise as a screening tool for cognitive impairment in older adults. Further research is necessary to establish the clinical utility of MyCog Mobile in a larger sample using documented clinical diagnoses. [ABSTRACT FROM AUTHOR]
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- 2024
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28. Synergistic use of Unplanned Reoperation and Hospital Readmission rates for quality monitoring in pediatric surgical care.
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Margarita, Galindo, Catalina, Contreras, Ana, Benavente, Bélgica, Cancino, and Sandra, Montedonico
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SURGICAL emergencies ,PATIENT readmissions ,THERAPEUTICS ,PEDIATRIC surgery ,INTRA-abdominal infections - Abstract
Introduction: Unplanned reoperation (URO) and unplanned hospital readmission (UHR) are key quality indicators used to assess healthcare quality improvement. The aim of this study was to describe, quantify, analyze and compare both indicators in a Pediatric Surgery Department. Methodology: An observational study was conducted reviewing the medical records of pediatric patients who underwent unplanned reoperation and unplanned hospital readmission over a six-year period in a pediatric surgical unit. The incidence, indications, and causes of reoperations and readmissions were analyzed. Results: A total of 6,376 surgeries were performed over a six-year period. During this time, there were 37 (0.58%) URO and 20 (0.31%) UHR. There were 23/2,437(0.94%) URO and 14/2,437(0.57%) UHR among emergency surgeries. In contrast, there were 14/3,939(0.35%) URO and 6/3,939(0.15%) UHR among elective surgeries (p < 0.05). Outpatient surgeries had 3/1,639 (0.18%) URO and 1/1,639 (0.06%) UHR compared to inpatient surgeries that had 11/2,300(0.47%) URO and 5/2,300 (0.21%) UHR respectively (p = ns). A total of 1,570 appendectomies were performed during the study period, with 8/1,570(0.5%) patients requiring either a URO or a UHR. The most frequent indication for both URO and UHR were intra-abdominal infections. The main cause of URO was a technical error during surgery (70%), while the main cause of UHR was an error in the medical treatment (35%). Conclusion: In our practice, URO are more frequent than UHR. Emergency surgeries have a higher risk of undergoing an URO or a UHR. Acute appendicitis is the most common diagnosis associated with the need for an URO or a UHR. The majority of unplanned reoperation cases are due to technical errors during surgery. [ABSTRACT FROM AUTHOR]
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- 2024
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29. Effect of Curing Time and Ferric Chloride on a Copper Concentrate with a High Arsenic Content.
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Quezada, Víctor, Zepeda, Stephano, Benavente, Oscar, Hernández, María Cecilia, and Melo, Evelyn
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COPPER sulfide ,FERRIC chloride ,COPPER chlorides ,COPPER ,ACYL chlorides ,SULFIDE minerals - Abstract
As a result of changes in copper mineralogy, various treatment options for copper sulfides have been explored, including pretreatment processes aimed at enhancing material permeability and improving the dissolution of valuable minerals. Despite its significance, this topic has only recently gained attention. In this research, a copper concentrate with a high arsenic content was studied, with enargite (Cu
3 AsS4 ) as the main mineral phase. The objective was to evaluate the effect of pretreatment on copper extraction efficiency prior to leaching. Three key variables were investigated: curing time (0, 5, 10, and 15 days), H2 SO4 dosage (0, 70, 140, and 210 kg/t), and FeCl3 concentration (0, 0.5, 1, and 1.5 M). The sample was characterized both before and after pretreatment, revealing the formation of new species such as CuSO4 ·5H2 O and Cu2 Cl(OH)3 under optimal conditions of 15 days curing time, 70 kg/t of H2 SO4 , and 1 M FeCl3 . Copper extraction solely through curing reached 20.79%. The analysis suggests that curing time is the most influential factor in the process, accounting for 46% of the overall contribution. In comparison, sulfuric acid and ferric chloride contribute less, with 20% and 10% contributions, respectively. [ABSTRACT FROM AUTHOR]- Published
- 2024
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30. Exploring the Impact of Resistance Training at Moderate Altitude on Metabolic Cytokines in Humans: Implications for Adipose Tissue Dynamics.
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Pérez-Regalado, Sergio, Leon, Josefa, Padial, Paulino, Benavente, Cristina, Almeida, Filipa, Bonitch-Góngora, Juan, de la Fuente, Blanca, and Feriche, Belén
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RESISTANCE training ,BODY composition ,VASTUS lateralis ,ADIPOSE tissues ,IRISIN - Abstract
Hypobaric hypoxia (HH) limits oxygen supply to tissues and increases metabolic demands, especially during exercise. We studied the influence of HH exposure on the subcutaneous adipose tissue (SAT) thickness and circulating metabolic-related cytokines levels after a resistance training (R
T ) program. Twenty trained men participated in a traditional hypertrophy RT for 8 weeks (three sessions/week) under intermittent terrestrial HH (2320 m) or normoxia (N, 690 m) conditions. Before, at week 6, and after the RT , SAT, and vastus lateralis (VL) muscle thickness were measured by ultrasound. Blood samples were taken to analyse serum cytokines (IL-6, IL-15, irisin, and myostatin) by multiplex immunoassay. Our findings revealed a moderate reduction in IL-6 and irisin in HH following the RT (ES < −0.64; p < 0.05). Additionally, RT in HH promoted serum IL-15 release (ES = 0.890; p = 0.062), which exhibited a trivial inverse association with the reductions observed on SAT (−17.69%; p < 0.001) compared with N. RT in HH explained ~50% of SAT variance (p < 0.001). These results highlight the benefit of stressor factors linked to RT in HH on SAT through the modulation of serum metabolic cytokine profiles, suggesting a potential effect on overall body composition. [ABSTRACT FROM AUTHOR]- Published
- 2024
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31. Chemical activation of ABA signaling in grapevine through the iSB09 and AMF4 ABA receptor agonists enhances water use efficiency.
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Bono, Mar, Ferrer‐Gallego, Raul, Pou, Alicia, Rivera‐Moreno, Maria, Benavente, Juan L., Mayordomo, Cristian, Deis, Leonor, Carbonell‐Bejerano, Pablo, Pizzio, Gaston A., Navarro‐Payá, David, Matus, José Tomás, Martinez‐Zapater, Jose Miguel, Albert, Armando, Intrigliolo, Diego S., and Rodriguez, Pedro L.
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WATER efficiency ,EVAPOTRANSPIRATION ,ABSCISIC acid ,FRUIT ripening ,GRAPE growing ,CLIMBING plants ,VITIS vinifera - Abstract
Grapevine (Vitis vinifera L.) is the world's third most valuable horticultural crop, and the current environmental scenario is massively shifting the grape cultivation landscape. The increase in heatwaves and drought episodes alter fruit ripening, compromise grape yield and vine survival, intensifying the pressure on using limited water resources. ABA is a key phytohormone that reduces canopy transpiration and helps plants to cope with water deficit. However, the exogenous application of ABA is impractical because it suffers fast catabolism, and UV‐induced isomerization abolishes its bioactivity. Consequently, there is an emerging field for developing molecules that act as ABA receptor agonists and modulate ABA signaling but have a longer half‐life. We have explored the foliar application of the iSB09 and AMF4 agonists in the two grapevine cultivars cv. 'Bobal' and 'Tempranillo' to induce an ABA‐like response to facilitate plant adaptation to drought. The results indicate that iSB09 and AMF4 act through the VviPYL1‐like, VviPYL4‐like, and VviPYL8‐like ABA receptors to trigger stomatal closure, reduce plant transpiration, and increase water use efficiency. Structural and bioinformatic analysis of VviPYL1 in complex with ABA or these agonists revealed key structural determinants for efficient ligand binding, providing a mechanistic framework to understand receptor activation by the ligands. Physiological analyses further demonstrated that iSB09 has a more sustained effect on reducing transpiration than ABA, and agonist spraying of grapevine leaves protected PSII during drought stress. These findings offer innovative approaches to strengthen the vine's response to water stress and reduce plant consumptive water use under limited soil water conditions. [ABSTRACT FROM AUTHOR]
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- 2024
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32. Diffuse alveolar hemorrhage in patients with systemic lupus erythematosus: data from the Spanish society of rheumathology Lupus Register (RELESSER).
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Garcia-Villanueva, María Jesús, Garrote-Corral, Sandra, Pego-Reigosa, Jose María, Jiménez Otero, Norman, Uriarte Isazelaia, Esther, Olivé Marqué, Alejandro, Sangüesa Gómez, Clara, Freire González, Mercedes, Aurrecoechea Aguinaga, Elena, Raya Álvarez, Enrique, Tomero Muriel, Eva, Montilla Morales, Carlos, Galindo Izquierdo, María, Calvo-Alén, Jaime, Menor-Almagro, Raúl, Serrano Benavente, Belén, Martinez-Barrio, Julia, Hernández-Beriain, Jose Angel, Ibañez Barceló, Mónica, and Bonilla Hernan, Gema
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SYSTEMIC lupus erythematosus ,INTRAVENOUS immunoglobulins ,LUPUS nephritis ,TOBACCO use ,HOSPITAL admission & discharge - Abstract
Introduction: Diffuse alveolar hemorrhage (DAH) is a rare complication with high mortality in patients with systemic lupus erythematosus (SLE). Early diagnosis and treatment are essential to improve patient prognosis. To determine the characteristics of patients with DAH and their mortality in a Spanish cohort of patients with SLE. Methods: Patients from the RELESSER (Spanish Society of Rheumatology Lupus Register) who had had at least one confirmed episode of DAH were included. Epidemiological, clinical, and laboratory characteristics were analyzed. Results: 4024 patients were included in the RELESSER register, 37 (0.9%), had at least one recorded episode of DAH. Only further data for 14 patients could be analyzed. In total, 92.9% were women, and for 4 (28.6%) DAH coincided with the debut of SLE. More than 80% of patients had renal involvement and thrombocytopenia. The most frequent manifestations were dyspnea (85.7%) and hypoxemia (100%), with the classic triad of hemoptysis, anemia and pulmonary infiltrates, appearing in 6 (46.2%) patients. The most frequently used treatments were glucocorticoids (85.7%) and cyclophosphamide (69.2%); plasmapheresis was utilized in 5 patients (35.7%) and 8, (57.1%) received intravenous immunoglobulins; 12 (85.7%) patients required admission to the ICU and 5 (35.7%) died. Tobacco use, history of lupus nephritis (LN), concomitant infection, and treatment with cyclophosphamide were more frequent in patients who died. Conclusions: DAH is rare in patients with SLE; in up to one-third of patients, it may appear at the onset of the disease. Some factors, such as smoking, a history of LN, treatment with cyclophosphamide, or concomitant infection, are more prevalent in patients with an unfavorable outcome. [ABSTRACT FROM AUTHOR]
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- 2024
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33. Advances in Limnogeology: The lake‐basin‐type model revisited 25 years after...anomalies, conundrums and upgrades.
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Benavente, Cecilia A. and Bohacs, Kevin M.
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BODIES of water ,WATER supply ,ROCK texture ,PALEONTOLOGY ,WATER depth ,PONDS - Abstract
The lake‐basin‐type model classified the stratigraphic record of ancient lake systems according to rates of potential accommodation relative to sediment + water supply. The model convolved all modes and paths of water supply (direct fall, surficial, subsurface) with amounts and types of sediment supply (clastic, biogenic, chemical) into a single basin‐filling volume term (sediment + water); its major strength was its widespread applicability. This was supported by subsequent investigations confirming the utility of this approach, but it also revealed some important limitations due to simplifications in the original model. The model has been expanded here to address all inland waters (lakes, ponds, wetlands, playas) as well as adding two major subdivisions of the sediment + water term: (1) water supply paths and (2) the volume of water supply relative to sediment supply. Water supply flow paths in the subsurface are subdivided into 'throughflow', 'recharge' and 'discharge'. Each of these groundwater hydrology states can be defined quite precisely by the ratio of net outflow to inflow, from persistently open to consistently closed. These paths can be deciphered using stable carbonate and oxygen isotope composition of primary lacustrine limestones, detailed sedimentology, stratigraphy, palaeontology and mineralogy. Distinguishing water supply paths provides additional insights into playa systems and the occurrence and character of evaporites and carbonates. The volume ratio of water to sediment supply most directly influences the water depths of lakes, ponds and wetlands, which affect water body hydrodynamics and ecosystem behaviour as well as the details of stratal stacking and depositional sequences. It helps fine‐tune estimates of the distribution of sediment texture, bedding, composition and organic matter content. The aim of this contribution is to address questions about the fundamental types of inland water bodies and to explain the new lake‐basin subtypes and provide examples that illustrate their potential to enable higher‐resolution, robust analysis of inland water systems and their stratigraphic records. [ABSTRACT FROM AUTHOR]
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- 2024
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34. Uncovering the therapeutic potential of green pea waste in breast cancer: a multi-target approach utilizing LC-MS/MS metabolomics, molecular networking, and network pharmacology.
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Khalil, Asmaa M., Sabry, Omar M., El-Askary, Hesham I., El Zalabani, Soheir M., Eltanany, Basma M., Pont, Laura, Benavente, Fernando, Mohamed, Ahmed F., and Fayek, Nesrin M.
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BREAST tumor treatment ,PHARMACEUTICAL chemistry ,FLAVONOIDS ,ISOFLAVONES ,MEDICAL wastes ,FOOD industry ,PLANT extracts ,CELL lines ,ESTROGEN receptors ,HOUSEHOLD supplies ,LIQUID chromatography ,ELECTROSPRAY ionization mass spectrometry ,DOXORUBICIN ,AMINO acids ,METABOLOMICS ,MOLECULAR biology ,FATTY acids ,LEGUMES ,POLYPHENOLS - Abstract
Background Pisum sativum: (PS) is a universal legume plant utilized for both human and animal consumption, particularly its seeds, known as green peas. The processing of PS in food industries and households produces a significant amount of waste that needs to be valorized. Methods: In this study, the metabolite profiles of the 70% ethanolic extracts of PS wastes, namely peels (PSP) and a combination of leaves and stems (PSLS), were investigated by liquid chromatography-electrospray ionization-quadrupole time-of-flight tandem mass spectrometry (LC-ESI-QTOF-MS/MS) followed by molecular networking. Results: Different classes of metabolites were identified, being flavonoids and their derivatives, along with phenolic acids, the most abundant categories. Additionally, a comprehensive network pharmacology strategy was applied to elucidate potentially active metabolites, key targets, and the pathways involved in cytotoxic activity against breast cancer. This cytotoxic activity was investigated in MCF-7 and MCF-10a cell lines. Results revealed that PSLS extract exhibited a potent cytotoxic activity with a good selectivity index (IC
50 = 17.67 and selectivity index of 3.51), compared to the reference drug doxorubicin (IC50 = 2.69 µg/mL and selectivity index of 5.28). Whereas PSP extract appeared to be less potent and selective (IC50 = 32.92 µg/mL and selectivity index of 1.62). A similar performance was also observed for several polyphenolics isolated from the PSLS extract, including methyl cis p-coumarate, trans p-coumaric acid, and liquiritigenin/ 7-methyl liquiritigenin mixture. Methyl cis p-coumarate showed the most potent cytotoxic activity against MCF-7 cell line and the highest selectivity (IC50 = 1.18 µg/mL (6.91 µM) and selectivity index of 27.42). The network pharmacology study revealed that the isolated compounds could interact with several breast cancer-associated protein targets including carbonic anhydrases 1, 2, 4, 9, and 12, as well as aldo-keto reductase family 1 member B1, adenosine A3 receptor, protein tyrosine phosphatase non-receptor type 1, and estrogen receptor 2. Conclusion: The uncovered therapeutic potential of PSLS and its metabolite constituents pave the way for an efficient and mindful PS waste valorization, calling for further in-vitro and in-vivo research. [ABSTRACT FROM AUTHOR]- Published
- 2024
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35. Nasal exudate for diagnosis of stroke: fundamental studies through iron fractionation, total iron, and targeted protein determinations.
- Author
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Marina-Latorre, Marta, Lobo, Lara, García-Cabo, Carmen, Benavente-Fernández, Lorena, Calleja-Puerta, Sergio, Fernández-Abedul, M. Teresa, González-Iglesias, Héctor, and Pereiro, Rosario
- Subjects
GEL permeation chromatography ,ISOTOPE dilution analysis ,HEMORRHAGIC stroke ,ISCHEMIC stroke ,IRON proteins ,FERRITIN - Abstract
During the last years, there has been an increasing research interest in the analysis of biological fluids requiring non-invasive sampling for biomedical and clinical applications. In this work, we have focused on the nasal exudate with the aim of investigating the potential use of this fluid to know the role of iron in stroke and also for diagnosis. Potential differences in the nasal exudate, collected in swabs, from diagnosed hemorrhagic stroke, ischemic stroke, and control groups were investigated with regard to total iron by inductively coupled plasma-mass spectrometry, iron fractionation studies by size exclusion chromatography together with post-column isotope dilution analysis, and four proteins containing iron (ferritin, transferrin, lactoferrin, and ferroportin) with ELISA kits. All these analyses represent an analytical challenge, considering the rather limited amount of sample (10–40 mg) available, being the nasal exudate extracted from the swab with 300 µL 10 mM Tris/HCl, pH = 7.4. Studies to obtain reliable analytical information, such as the blank contribution of the sampling step, evaluation of the extraction efficiency of the nasal exudate from the swab, and normalization strategies for data treatment, have been carried out. Results showed that despite the limited number of investigated samples, fractionation studies as well as the concentrations of ferritin and ferroportin obtained with ELISA kits showed a differential behavior between the different cohorts. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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36. Modelling the Uptake of 226 Ra and 238 U Stable Elements in Plants during Summer in the Vicinity of Tailings from an Abandoned Copper Mine.
- Author
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Expósito-Suárez, Víctor Manuel, Suárez-Navarro, José Antonio, Morales-Quijano, Miguel, Gómez-Mancebo, María Belén, Barragan, Marta, Cortecero, Miriam, and Benavente, José Francisco
- Subjects
FUEL cycle ,ARID regions climate ,COPPER mining ,NATURAL radioactivity ,ABANDONED mines - Abstract
Transfer factors (TFs) are widely used tools for assessing the uptake of radionuclides by plants. The literature contains numerous studies on TFs in tropical and temperate climates; however, the existing data on TFs in arid and semi-arid climates are very scarce. Furthermore, the current trend in nuclear energy expansion in countries with this type of climate necessitates knowledge of the mechanisms of radionuclide incorporation by plants as well as the TF values. For this reason, this work investigates the TFs of
238 U and226 Ra in plants in a study area during the summer period under conditions equivalent to a semi-arid climate. The selected plants were Scolymus hispanicus L., Eryngium campestre L., Chenopodium vulvaria L., and Chenopodium album L., which were collected in the vicinity of a waste dump from an abandoned copper mine. The selected study area has radionuclide levels above the global average, in addition to heavy metals, as it is a waste dump from an abandoned copper mine. The range of transfer factors for238 U varied between 1.5 × 10−4 kg−1 kg−1 and 7.8 × 10−3 kg−1 kg−1 , while for226 Ra, the range was between 1.8 × 10−4 kg−1 kg−1 and 4.0 × 10−2 kg−1 kg−1 . The correlations found with PCA were (i)238 U with Fe and Al, and (ii)226 Ra with S, Ti, Ca, and Sr. A transfer model of238 U and226 Ra was created using multiple linear regression analysis. The model showed how238 U was related to the presence of Al, while226 Ra was related to Al, Fe, and Ti. The results obtained have allowed us to propose a model for the incorporation of238 U and226 Ra, taking into account the chemical composition of the soil. The results obtained indicate that both Scolymus hispanicus L. and Eryngium campestre L. could be utilized in phytoremediation for soils contaminated by natural radionuclides in semi-arid climates. The TFs, as well as the proposed model, allow us to expand the knowledge of the absorption of natural radionuclides by plants in regions with arid and semi-arid climates, which is necessary for the radiological risk assessment of future nuclear fuel cycle facilities. [ABSTRACT FROM AUTHOR]- Published
- 2024
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- View/download PDF
37. Thermoluminescent Response of Ce- and Li-Doped CaF2 Phosphor to Gamma and UV Irradiation.
- Author
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Cano, Nilo F., Aqquepucho, Ruben R. M., Mosqueira-Yauri, Jessica, Turpo-Huahuasoncco, Klinton V., Rocca, René R., Benavente, J. F., Rondan-Flores, L. M., Chubaci, J. F. D., and Ayala-Arenas, Jorge S.
- Abstract
In this work, Ce- and Li-doped CaF
2 phosphor (CaF2 :Ce,Li) was synthesized by the combustion technique. Structural and morphological analysis of the synthesized material has been carried out by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The XRD pattern reveals the formation of a pure phase of the CaF2 crystal with a crystallite size of 717 nm. The luminescence properties were investigated by the thermoluminescence (TL) technique. The effect of sintering temperature on the TL glow curve of the pellets has been investigated for different temperatures (450, 500, 525, 550, and 575 °C). Pellets sintered at 525 °C and 550 °C presented higher sensitivity in their TL responses for gamma and UV irradiation, respectively. Samples irradiated with gamma radiation show two intense TL peaks centered at 172 °C and 275 °C. On the other hand, samples irradiated with UV radiation show two peaks centered at 195 and 280 °C. The intensity of the TL peaks increases with gamma radiation dose and UV irradiation time. The kinetic parameters of the glow curve peaks were determined through the combined analysis of the results obtained by the Tm-Tstop and deconvolution methods. [ABSTRACT FROM AUTHOR]- Published
- 2024
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- View/download PDF
38. The potential application of Czenspinskia transversostriata in biological control.
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Vangansbeke, Dominiek, Duarte, Marcus V. A., Merckx, Jonas, Benavente, Alfredo, Stevens, Ian, Debie, Heidi, Viaene, Nikolaas, Guilbaud, Manon, Pijnakker, Juliette, Steel, Hanne, and Wäckers, Felix
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PREDATORY mite ,CUCUMBER growing ,POWDERY mildew diseases ,MITE control ,PHYTOSEIIDAE ,CUCUMBERS - Abstract
Phytoseiid predatory mites are one of the most important groups of biocontrol agents, commonly used in biological control. The ability to produce these predatory mites economically, at high density on cheap factitious food sources, is a major contributor to their success. Astigmatid mites are the most widely used factitious food for this purpose. In this study, we investigated the potential application of the leaf-dwelling astigmatid mite Czenspinskia transversostriata (Oudemans) (Acari: Winterschmidtiidae) as a prey mite in biological control. We tested whether C. transversostriata is a suitable food source for the predatory mite Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae), both in the laboratory and on cucumber plants. Based on a reproduction trial, C. transversostriata proved to be an equally good food source compared to both pollen of Typha angustifolia L. (Poales: Typhaceae) and a frequently used prey mite Carpoglyphus lactis L. (Acari: Carpoglyphidae). In a pre-establishment trial on cucumber plants, populations of A. swirskii reached equally high densities when supplemented with C. transversostriata, compared to C. lactis. Lastly, we show that C. transversostriata is capable of feeding and reproducing on powdery mildew growing on cucumber plants, thereby slowing down the development of the pathogenic fungus. Results derived from this study show that C. transversostriata may have multiple potential applications in biological control programs. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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39. Empleo de Filtralite para eliminar Ni en aguas de escorrentía urbana: una modelación numérica para la gestión sostenible del agua en las ciudades.
- Author
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Mederos, Marlon, Pla, Concepcion, Valdes-Abellan, Javier, and Benavente, David
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URBAN runoff ,HEAVY metals ,MUNICIPAL water supply ,SYSTEMS design ,URBANIZATION ,URBAN runoff management - Abstract
Copyright of Ingeniería del Agua is the property of Universidad Politecnica de Valencia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
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40. Enhanced Spatial Fuzzy C-Means Algorithm for Brain Tissue Segmentation in T1 Images.
- Author
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Jafrasteh, Bahram, Lubián-Gutiérrez, Manuel, Lubián-López, Simón Pedro, and Benavente-Fernández, Isabel
- Abstract
Magnetic Resonance Imaging (MRI) plays an important role in neurology, particularly in the precise segmentation of brain tissues. Accurate segmentation is crucial for diagnosing brain injuries and neurodegenerative conditions. We introduce an Enhanced Spatial Fuzzy C-means (esFCM) algorithm for 3D T1 MRI segmentation to three tissues, i.e. White Matter (WM), Gray Matter (GM), and Cerebrospinal Fluid (CSF). The esFCM employs a weighted least square algorithm utilizing the Structural Similarity Index (SSIM) for polynomial bias field correction. It also takes advantage of the information from the membership function of the last iteration to compute neighborhood impact. This strategic refinement enhances the algorithm's adaptability to complex image structures, effectively addressing challenges such as intensity irregularities and contributing to heightened segmentation accuracy. We compare the segmentation accuracy of esFCM against four variants of FCM, Gaussian Mixture Model (GMM) and FSL and ANTs algorithms using four various dataset, employing three measurement criteria. Comparative assessments underscore esFCM's superior performance, particularly in scenarios involving added noise and bias fields.The obtained results emphasize the significant potential of the proposed method in the segmentation of MRI images. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
41. Comparison of AmpliSens® HCV genotype-FRT-g-1-6 PCR kit with Abbott® Real Time HCV genotype II assay for hepatitis C virus genotyping.
- Author
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Maldonado-Barrueco, Alfredo, Sanz-González, Claudia, Avellón, Ana, Montero-Vega, Dolores, Vidales-Míguez, Cristina, Carisimo-Benavente, Laura, and Falces-Romero, Iker
- Subjects
HEPATITIS C virus ,LOW-income countries ,GENETIC variation ,POLYMERASE chain reaction ,HEPATITIS C - Published
- 2025
- Full Text
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42. Mediterranean Diet Prior to Ischemic Stroke and Potential Circulating Mediators of Favorable Outcomes.
- Author
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Castañón-Apilánez, María, García-Cabo, Carmen, Martin-Martin, Cristina, Prieto, Belén, Cernuda-Morollón, Eva, Rodríguez-González, Pablo, Pineda-Cevallos, Daniela, Benavente, Lorena, Calleja, Sergio, and López-Cancio, Elena
- Abstract
Background/Objectives. A Mediterranean diet (MD) has been associated with neuroprotective effects. We aimed to assess the MD's association with stroke prognosis and the potential mediators involved. Methods. Seventy patients with acute anterior circulation ischemic stroke were included. Dietary patterns were evaluated using the MEDAS scale, a food-frequency questionnaire, and a 24 h recall. Circulating biomarkers including insulin resistance (HOMA index), adipokines (resistin, adiponectin, leptin), choline pathway metabolites (TMAO, betaine, choline), and endothelial progenitor cells (EPCs) were measured. Early neurological improvement (ENI) at 24 h, final infarct volume, and functional outcome at 3 months were assessed. Results. Adherence to MD and olive oil consumption were associated with a lower prevalence of diabetes and atherothrombotic stroke, and with lower levels of fasting glycemia, hemoglobinA1C, insulin resistance, and TMAO levels. Monounsaturated fatty acids and oleic acid consumption correlated with lower resistin levels, while olive oil consumption was significantly associated with EPC mobilization. Multivariate analysis showed that higher MD adherence was independently associated with ENI and good functional prognosis at 3 months. EPC mobilization, lower HOMA levels, and lower resistin levels were associated with ENI, a smaller infarct volume, and good functional outcome. Conclusions. MD was associated with better prognosis after ischemic stroke, potentially mediated by lower insulin resistance, increased EPC mobilization, and lower resistin levels, among other factors. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. TRATAMIENTO DE LA BETA TALASEMIA. ¿SE PUEDE CURAR LA TALASEMIA?
- Author
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Martínez, Ana Villegas, González Fernández, Ataúlfo Fernando, Gradilla, Paloma Ropero, Nieto, Jorge Martínez, and Cuesta, Celina Benavente
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- 2024
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44. The interdependence between rhinovirus cycle threshold values, viral co‐detections, and clinical disease severity in children with and without comorbidities.
- Author
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Sánchez Códez, María Isabel, Benavente Fernández, Isabel, Moyer, Katherine, Leber, Amy L., Ramilo, Octavio, and Mejias, Asuncion
- Subjects
VIRAL load ,MIXED infections ,JUVENILE diseases ,RESPIRATORY infections ,RHINOVIRUSES - Abstract
Rhinoviruses (RVs) are a leading cause of acute respiratory infections (ARI) in children. The relationship between RV viral loads (VL), RV/viral‐co‐detections and disease severity, is incompletely understood. We studied children and adolescents ≤21 years with RV‐ARI that were identified as inpatients or outpatients using a PCR panel from 2011‐2013. RV VL were stratified according to cycle threshold (CT) values in high (≤25), intermediate (26‐32) and low (>32). Adjusted analyses were performed to assess the role RV VL and RV/viral codetections on hospital admission, oxygen requirement, PICU care, and length of stay. Of 1,899 children with RV‐ARI, 78% had chronic comorbidities and 24% RV/viral co‐detections. Single RV vs RV/viral co‐detections was associated with higher VL (24.74 vs 26.62 CT; p = 0.001) and older age (14.9 vs 9.5 months; p = 0.0001). Frequency of RV/viral co‐detections were inversely proportional to RV loads: 32% with low; 28% with intermediate, and 19% with high VL, p = 0.0001. Underlying conditions were independently associated with all clinical outcomes, high VL with PICU care, and single RV‐ARI with higher odds of hospitalization. In summary, single RV vs RV/viral co‐detections were associated with higher VL and older age. Underlying diseases, rather than RV loads or RV/viral co‐detections, consistently predicted worse clinical outcomes. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
45. Study of the Chemical Recovery and Selectivity against U in the Radiochemical Separation of Th with Tri-n-butyl Phosphate by Varying the Proportion of Xylene and HCl Concentration.
- Author
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Expósito-Suárez, Víctor Manuel, Suárez-Navarro, José Antonio, and Benavente, José Francisco
- Subjects
FUEL cycle ,CHEMICAL yield ,COMPLEX matrices ,ENVIRONMENTAL sciences ,THORIUM ,THORIUM isotopes ,LIQUID-liquid extraction - Abstract
Thorium is a radionuclide used in various environmental studies such as dating, sediment movement, soil–plant transfer studies, and contamination of waste from the natural fuel cycle. The liquid–liquid extraction method using tri-n-butyl phosphate (TBP) allows for the separation of Th from the accompanying actinides. However, the separation of Th and U present in the same sample is not trivial. This separation is influenced by the starting acid (HCl or HNO
3 ), the concentration of TBP in an organic solvent, and the concentration of the acid used for re-extracting Th, which is typically HCl. Therefore, it is necessary to study these factors to ensure that the method has sufficient chemical yield and selectivity in complex matrices. This study presents a systematic investigation of the aforementioned parameters, making the necessary variations to select an optimal method for the radiochemical separation of Th. The ideal conditions were obtained using 4 M HCl as the acid prior to extraction, a 1:4 solution of TBP in xylene, and 4 M HCl as the re-extracting agent. The accuracy and precision were studied in four intercomparison exercises conducted in quadruplicate, using the parameters Enumbers , RB(%), and RSD(%) for232 Th and230 Th. The sensitivity of the method was experimentally studied and the limit of detection (LoD) was determined according to ISO 11929:2005. Additionally, the linearity of the method showed that the experimental and theoretical activity concentrations of232 Th and230 Th had slopes of 1 with an intercept close to 0. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
46. Neurodevelopmental Impairments Prediction in Premature Infants Based on Clinical Data and Machine Learning Techniques.
- Author
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Ortega-Leon, Arantxa, Gucciardi, Arnaud, Segado-Arenas, Antonio, Benavente-Fernández, Isabel, Urda, Daniel, and Turias, Ignacio J.
- Subjects
MACHINE learning ,PREMATURE infants ,FEATURE selection ,NEURAL development ,FORECASTING ,PREMATURE labor - Abstract
Preterm infants are prone to NeuroDevelopmental Impairment (NDI). Some previous works have identified clinical variables that can be potential predictors of NDI. However, machine learning (ML)-based models still present low predictive capabilities when addressing this problem. This work attempts to evaluate the application of ML techniques to predict NDI using clinical data from a cohort of very preterm infants recruited at birth and assessed at 2 years of age. Six different classification models were assessed, using all features, clinician-selected features, and mutual information feature selection. The best results were obtained by ML models trained using mutual information-selected features and employing oversampling, for cognitive and motor impairment prediction, while for language impairment prediction the best setting was clinician-selected features. Although the performance indicators in this local cohort are consistent with similar previous works and still rather poor. This is a clear indication that, in order to obtain better performance rates, further analysis and methods should be considered, and other types of data should be taken into account together with the clinical variables. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. Efficient Operation of Metropolitan Corridors: Pivotal Role of Lane Management Strategies.
- Author
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Rivadeneira, Ana Maria, Benavente, Juan, and Monzon, Andres
- Subjects
METROPOLITAN areas ,TRAFFIC lanes ,CORRIDORS ,TRAFFIC congestion ,EMISSION control - Abstract
Lane management strategies are vital for solving traffic congestion and improving transportation efficiency in metropolitan corridors. These corridors, which facilitate economic and social interactions by connecting major urban areas, face significant challenges such as congestion, environmental concerns, and the need for sustainable growth. Effective lane management involves techniques such as HOV lanes, HOT lanes, reversible lanes, and dynamic toll pricing, which have been implemented worldwide. This study addresses the questions 'What are the benefits and limitations of lane management strategies in metropolitan corridors?' and 'When should decision-makers consider implementing lane management strategies in a metropolitan corridor?' This paper aims to evaluate lane management strategies to increase the multimodal efficiency of metropolitan corridors. A systematic literature review of case studies reveals that while these strategies significantly reduce congestion and emissions, they also face road safety, compliance, and public resistance issues. In addition, gaps in existing research on metropolitan corridors and lane management will be identified, and areas for future research are proposed. The impacts of new societal trends and evolving urban planning concepts are examined. The study highlights the need for adaptive planning and innovative solutions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. 2D/2D Heterojunctions of Layered TiO 2 and (NH 4) 2 V 3 O 8 for Sunlight-Driven Methylene Blue Degradation.
- Author
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Aliaga, Juan, Alegria, Matías, Donoso, J. Pedro, Magon, Claudio J., Silva, Igor D. A., Lozano, Harold, Molins, Elies, Benavente, Eglantina, and González, Guillermo
- Subjects
METHYLENE blue ,INDUSTRIAL wastes ,CHEMICAL stability ,SOLAR spectra ,ABSORPTION spectra - Abstract
Photocatalysis based on titanium dioxide (TiO
2 ) has become a promising method to remediate industrial and municipal effluents in an environmentally friendly manner. However, the efficiency of TiO2 is hampered by problems such as rapid electron–hole recombination and limited solar spectrum absorption. Furthermore, the sensitization of TiO2 through heterojunctions with other materials has gained attention. Vanadium, specifically in the form of ammonium vanadate ((NH4 )2 V3 O8 ), has shown promise as a photocatalyst due to its ability to effectively absorb visible light. However, its use in photocatalysis remains limited. Herein, we present a novel synthesis method to produce lamellar (NH4 )2 V3 O8 as a sensitizer in a supramolecular hybrid photocatalyst of TiO2 –stearic acid (SA), contributing to a deeper understanding of its structural and magnetic characteristics, expanding the range of visible light absorption, and improving the efficiency of photogenerated electron–hole separation. Materials, such as TiO2 –SA and (NH4 )2 V3 O8 , were synthesized and characterized. EPR studies of (NH4 )2 V3 O8 demonstrated their orientation-dependent magnetic properties and, from measurements of the angular variation of g-values, suggest that the VO2 + complexes are in axially distorted octahedral sites. The photocatalytic results indicate that the 2D/2D heterojunction layered TiO2 /vanadate at a ratio (1:0.050) removed 100% of the methylene blue, used as a model contaminant in this study. The study of the degradation mechanism of methylene blue emphasizes the role of reactive species such as hydroxyl radicals (• OH) and superoxide ions (O2 •− ). These species are crucial for breaking down contaminant molecules, leading to their degradation. The band alignment between ammonium vanadate ((NH4 )2 V3 O8 ) and TiO2 –SA, shows effective separation and charge transfer processes at their interface. Furthermore, the study confirms the chemical stability and recyclability of the TiO2 –SA/(NH4 )2 V3 O8 photocatalyst, demonstrated that it could be used for multiple photocatalytic cycles without a significant loss of activity. This stability, combined with its ability to degrade organic pollutants under solar irradiation, means that the TiO2 –SA/(NH4 )2 V3 O8 photocatalyst is a promising candidate for practical environmental remediation applications. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
49. Measurement of GFAP in Nasal Exudate in the Differential Diagnosis between Ischemic Stroke and Intracerebral Hemorrhage.
- Author
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García-Cabo, Carmen, Rioboó-Legaspi, Pablo, Benavente-Fernández, Lorena, Costa-Rama, Estefanía, Fernández-Abedul, María Teresa, and Calleja-Puerta, Sergio
- Subjects
HEMORRHAGIC stroke ,GLIAL fibrillary acidic protein ,BRAIN tomography ,ISCHEMIC stroke ,CEREBRAL hemorrhage - Abstract
Background: Differential diagnosis between ischemic stroke (IS) and intracerebral hemorrhage (ICH) is a great challenge. Recently, the discovery of cerebral lymphatic drainage toward the nostrils suggested nasal exudate (NE) as a new source for measuring biomarkers from neural damage. Objectives: In this study, we sought to confirm whether glial fibrillary acidic protein (GFAP) levels in NE could identify ICH. Methods: GFAP in nasal exudate (nGFAP) was studied in 5 IS and 5 ICH patients. All patients underwent neurological examination, brain computed tomography, laboratory tests, and measurement of nGFAP and serum GFAP. Results: We found higher concentrations in ICH patients (p = 0.02). The area under the ROC curve for IS/ICH discrimination was 0.840, with a cut-off point of 0.06 pg/mg for 100% sensitivity and 80% specificity. Conclusions: These findings suggest that nGFAP could be a useful biomarker for differential diagnosis between IS and ICH and opens a potential field of study for other biomarkers in NE in neurological disorders. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. Oncogenic Roles of UHRF1 in Cancer.
- Author
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Kim, Ahhyun and Benavente, Claudia A.
- Subjects
ONCOGENIC proteins ,DNA repair ,DNA methylation ,LUNG cancer ,BREAST cancer - Abstract
Ubiquitin-like with PHD and RING finger domains 1 (UHRF1) is an essential protein involved in the maintenance of repressive epigenetic marks, ensuring epigenetic stability and fidelity. As an epigenetic regulator, UHRF1 comprises several functional domains (UBL, TTD, PHD, SRA, RING) that are collectively responsible for processes like DNA methylation, histone modification, and DNA repair. UHRF1 is a downstream effector of the RB/E2F pathway, which is nearly universally deregulated in cancer. Under physiological conditions, UHRF1 protein levels are cell cycle-dependent and are post-translationally regulated by proteasomal degradation. Conversely, UHRF1 is overexpressed and serves as an oncogenic driver in multiple cancers. This review focuses on the functional domains of UHRF1, highlighting its key interacting proteins and oncogenic roles in solid tumors including retinoblastoma, osteosarcoma, lung cancer, and breast cancer. Additionally, current therapeutic strategies targeting UHRF1 domains or its interactors are explored, providing an insight on potential clinical applications. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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