Publications by authors named "Valencia J"

: The evaluation of metabolic syndrome (MetS) is critical among children and adolescents as it can predict cardiovascular disease in adulthood. The TG/HDL-C ratio has the best predictive accuracy among the different lipid ratios. This study aims to evaluate the prevalence and factors associated with a high TG/HDL-C ratio and the predictive accuracy for pediatric MetS.

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  • Hepatitis C virus (HCV) microelimination focuses on detecting and treating hidden infections in vulnerable populations, particularly people experiencing homelessness (PEH) who may suffer from substance use disorders, highlighting the role of point-of-care testing and peer support in infection prevention.
  • A study conducted in Madrid from 2019 to 2023 assessed active HCV infection among PEH, utilizing rapid testing methods and analyzing various risk factors, including substance use and financial instability.
  • Out of 2,709 screened PEH, 13.4% tested positive for HCV antibodies, with a prevalence of 6.3% for active infection; key risk factors identified were injection drug use (IDU) and associated behaviors, leading to
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  • Modern medicine aims to enhance treatment effectiveness while minimizing side effects, with nanoparticles (NPs) offering promising potential for targeted drug delivery and imaging.
  • However, the small size of NPs often leads to quick removal from the bloodstream and limited effectiveness due to challenges in crossing important cell barriers.
  • This research demonstrates a method to exploit endothelial caveolae in the lungs to improve NP delivery, achieving higher lung concentrations than in the bloodstream, which could enhance both diagnostics and therapies in future medical applications.
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The frequency stability of a laser locked to an optical reference cavity is fundamentally limited by thermal noise in the cavity length. These fluctuations are linked to material dissipation, which depends on both the temperature of the optical components and the material properties. Here, the design and experimental characterization of a sapphire optical cavity operated at 10 K with crystalline coatings at 1069 nm is presented.

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Although the human papillomavirus (HPV) vaccine is effective at preventing infection and certain types of cancer, uptake is suboptimal. HPV vaccine requirements for school entry are an underutilized strategy to increase HPV vaccine uptake among adolescents. The purpose of this study was to understand the factors that are predictive of parents' attitudes toward schools requiring the HPV vaccine for entry into middle school.

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Laryngeal hemangiomas are rare vascular tumors, mainly in children, and less common in adults. Giant lesions typically require multiple endoscopic procedures and temporary tracheostomy. Open surgery allows single-procedure removal with fewer complications.

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Climate change associated with human activities alters marine ecosystems and causes imbalances and abrupt changes in sea conditions. Scarce freshwater resources for human consumption often prompt the construction of desalination plants, which discharge significant amounts of brine into the sea, potentially elevating salinity levels. Furthermore, global trade together with higher temperature and pollution can facilitate the spread of parasites.

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Cell fate specification occurs along invariant species-specific trajectories that define the animal body plan. This process is controlled by gene regulatory networks that regulate the expression of the limited set of transcription factors encoded in animal genomes. Here we globally assess the spatial expression of ~90% of expressed transcription factors during sea urchin development from embryo to larva to determine the activity of gene regulatory networks and their regulatory states during cell fate specification.

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BackgroundRecent migration trends have shown a notable entry of Latin American asylum seekers to Madrid, Spain.AimTo characterise the profile of asylum-seeking Latin American migrants who are living with HIV in Spain and to outline the barriers they face in accessing HIV treatment.MethodsA prospective cohort study was conducted between 2022 and 2023 with a 6-month follow-up period.

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  • A study in Madrid, Spain, assessed the trends and risk factors of active hepatitis C virus (HCV) infections among people who use drugs (PWUD) from 2017 to 2023, involving 2,264 participants and extensive data collection.
  • Results showed a significant decline in active HCV infection rates from 23.4% to 6.0% in the overall study population, with a notable reduction among those who inject drugs (PWID) and non-injectors.
  • The findings indicate successful prevention and treatment efforts in Madrid, particularly benefiting PWID, highlighting the effectiveness of public health initiatives in controlling HCV infection rates.
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Background: Cancer patients often have weakened immune systems, resulting in a lower response to vaccines, especially those receiving immunosuppressive oncological treatment (OT). We aimed to assess the impact of OT on the humoral and T-cell response to the B.1 lineage and Omicron variant following COVID-19 vaccination in patients with solid and hematological neoplasms.

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There is scant knowledge regarding pre-exposure prophylaxis (PrEP) use among female sex workers (FSWs) in Europe. Spain recognized FSWs as a population at high risk of acquiring HIV and granted them subsidized access to PrEP when the medication first became nationally available in 2019. Nevertheless, FSWs represented just 0.

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The study on the adoption of mobile learning in university education reveals a growing interest in mobile technologies to improve the learning process; both the acceptance and rejection of these tools among students have been analyzed. However, there are gaps in the research that require a deeper exploration of the factors that influence the adoption and use of these technologies. Understanding these aspects is crucial to optimize mobile learning strategies and improve the educational experience in the university setting.

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It has been shown that the Medication Regimen Complexity Index (MRCI) is a useful and reliable tool for calculating the complexity of the pharmacotherapeutic regimen (CPR). Furthermore, a high MRCI is associated with lower adherence. However, the MRCI of opioid-dependent patients (ODP) has not been studied.

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This perspective work by academic neonatal providers is written specifically for the audience of newborn care providers and neonatologists involved in neonatal hypoglycemia screening. Herein, we propose adding a screen for congenital hyperinsulinism (CHI) by measuring glucose and ketone (i.e.

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Context Conventional sperm quality tests may not be sufficient to predict the fertilising ability of a given ejaculate; thus, rapid, reliable and sensitive tests are necessary to measure sperm function. Aims This study sought to address whether a cluster analysis approach based on flow cytometry variables could provide more information about sperm function. Methods Spermatozoa were exposed to either isotonic (300mOsm/kg) or hypotonic (180mOsm/kg) media for 5 and 20min, and were then stained with SYBR14 and propidium iodide (PI).

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  • Three unsymmetrical 7-(diethylamino)quinolone chalcones were created through a Claisen-Schmidt reaction, utilizing 7-(diethylamino)quinolone and vanillin as electron donors linked by an α,β-unsaturated carbonyl as the electron acceptor.
  • The photophysical analysis showed significant Stokes shifts and solvatofluorochromism due to intramolecular charge transfer (ICT) and twisted intramolecular charge transfer (TICT), with density functional theory (DFT) calculations supporting these findings.
  • Cytotoxic tests on various cancer cell lines showed moderate activity, particularly against LNCaP cells, and the compounds demonstrated potential as imaging agents with strong emission and good cell permeability,
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Introduction: Interferon-gamma (IFN-γ) is pivotal in orchestrating immune responses during healthy pregnancy. However, its dysregulation, often due to autoimmunity, infections, or chronic inflammatory conditions, is implicated in adverse reproductive outcomes such as pregnancy failure or infertility. Additionally, the underlying immunological mechanisms remain elusive.

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  • * The Birmingham Orthopaedic Oncology Meeting in January 2024 gathered 300 experts from over 50 countries to reach global consensus on chondrosarcoma treatment and address challenges related to periprosthetic joint infection in cancer surgeries.
  • * The meeting aimed to not only resolve current controversies but also to encourage collaboration among specialists for future research that could improve patient outcomes worldwide.
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Although vaccine behaviors differ greatly by gender and age, few studies have examined vaccination at the intersection of gender and age within the Black community. We examined COVID-19 vaccination by gender and age using a survey of over 500 Black adults in Chicago, Illinois, fielded from September 2021 to March 2022. Although 54% had received at least one COVID-19 vaccine, the proportion vaccinated was considerably lower for Black men (28%) and women (37%) under 40 years old than Black men (92%) and women (86%) over 40 years ( < .

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Purpose: Examine trust in sources of COVID-19 information and vaccination status.

Design: Cross-sectional.

Setting: Chicago, Illinois.

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Medical mistrust is associated with poor health outcomes, ineffective disease management, lower utilization of preventive care, and lack of engagement in research. Mistrust of healthcare systems, providers, and institutions may be driven by previous negative experiences and discrimination, especially among communities of color, but religiosity may also influence the degree to which individuals develop trust with the healthcare system. The Black community has a particularly deep history of strong religious communities, and has been shown to have a stronger relationship with religion than any other racial or ethnic group.

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