Publications by authors named "JA Lopez"

Article Synopsis
  • The study focuses on understanding apolipoprotein B (apoB) levels in the Hispanic/Latino community and their relationship to cardiovascular disease risk.
  • Participants were part of the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), which included a diverse range of individuals across four major US cities.
  • Results indicated that the average apoB concentration was higher in males compared to females, highlighting potential gender differences in cardiovascular risk among Hispanic or Latino populations.
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The following document details low-cost hardware and open-source available software tools that can be combined to support active teaching methodologies like Problem-Based Learning (PBL) and incorporate work-oriented technological skills in students. This proposal presents a prototype of Open Educational Resources (OER) that integrates software and hardware tools for the specific purpose of facilitating instruction in Artificial Intelligence. The hardware consists of affordable electronic devices, including an Arduino board, servo motors, sensors, a relay and a motor, all integrated into a scaled conveyor belt.

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Specialized or secondary metabolites are small molecules of biological origin, often showing potent biological activities with applications in agriculture, engineering and medicine. Usually, the biosynthesis of these natural products is governed by sets of co-regulated and physically clustered genes known as biosynthetic gene clusters (BGCs). To share information about BGCs in a standardized and machine-readable way, the Minimum Information about a Biosynthetic Gene cluster (MIBiG) data standard and repository was initiated in 2015.

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  • The Zika virus (ZIKV), primarily spread by mosquitoes, poses significant health challenges, especially in impoverished tropical areas; understanding its spread is crucial for control efforts.
  • This study utilized unsupervised machine learning techniques, particularly Random Forest and various dimensional reduction methods, to analyze ZIKV protein data and identify patterns without prior training information.
  • Results revealed distinct host and geographical clusters for ZIKV, with UMAP being particularly effective; these methods could help track viral pathogens and could be adapted for studying other viruses like dengue.
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A series of 1,5-disubstituted tetrazole-indole hybrids were synthesized via a high-order multicomponent reaction consisting of an Ugi-azide/Pd/Cu-catalyzed hetero-annulation cascade sequence. This operationally simple one-pot protocol allowed high bond-forming efficiency and creating six new bonds (two C-C, three C-N, and one N-N). Additionally, the products were evaluated against breast cancer MCF-7 cells, finding moderate activity in the compounds substituted with fluorine and chlorine.

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  • * Between 2004 and 2022, MRI awarded scholarships to 405 individuals, and those who received funding had significantly lower dropout rates compared to national averages: 0% for graduate students and 2.2% for medical students.
  • * The initiative also showed that awardees were more likely to stay in the hematology-oncology field than national minority averages, with 14.4% of medical students and 88.5% of early-career
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  • Ongoing research is essential for tracking and understanding the emergence of new SARS-CoV-2 variants, particularly as diagnostic testing declines in Australia during the COVID-19 pandemic.
  • In 2023, collaborations with pathology and genomics teams allowed for the monitoring of SARS-CoV-2 variants in New South Wales through various methods, including viral culture and analysis of immune responses from a large pool of blood donations.
  • Findings indicated that while existing antibodies generally neutralized many variants, specific mutations in emerging strains, particularly JN.1, suggested future challenges in controlling their spread due to enhanced transmissibility.
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The first systematic, concise and target-directed gold(I)-catalyzed synthesis of a family of 2,2'-biindoles containing different substitution patterns is described. The developed protocol involves the synthesis of 1,3-diyne-anilines followed by a one-pot gold(I)-catalyzed double cycloisomerization, giving rise to an efficient, broad and general protocol to get different 2,2'-biindoles under mild reaction conditions. Due to the methodological restriction of present methods for accessing this class of compounds, herein we present our synthetic proposal which allowed the preparation of several examples of 2,2'-biindoles.

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  • Human immune responses to infections like malaria are influenced by genetics, environment, and past infections, but the role of latent cytomegalovirus (CMV) in malaria immunity is not well understood.
  • Research examined how CMV affects immune responses to malaria using samples from prior clinical trials, revealing that CMV seropositivity leads to lower production of specific antibodies after malaria infection and vaccination, and alters Tfh cell responses.
  • The study indicates that individuals with CMV are less likely to develop protective antibodies against malaria, highlighting the need for further research in malaria-endemic areas to understand how CMV might affect immunity in children.
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  • The IA polymorphism is linked to both the Ankyrin Repeat and Kinase Domain-containing I gene (ANKK1) and the D2 dopamine receptor gene, posing challenges in understanding its role in addictions and psychiatric disorders due to unclear ANKK1 functions.
  • Research using SH-SY5Y neuroblastoma models shows that ANKK1 interacts with FARP1, a synapse protein, contributing to neuronal maturation and the activation of the Wnt/PCP pathway while promoting neuritogenesis.
  • Interactions between ANKK1 and WGEF are crucial for regulating RhoGTPases during neuronal differentiation, indicating that ANKK1 may play a significant role in organizing the brain's structural response related to IA-associated
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The human gut contains diverse communities of bacteriophage, whose interactions with the broader microbiome and potential roles in human health are only beginning to be uncovered. Here, we combine multiple types of data to quantitatively estimate gut phage population dynamics and lifestyle characteristics in human subjects. Unifying results from previous studies, we show that an average human gut contains a low ratio of phage particles to bacterial cells (~1:100), but a much larger ratio of phage genomes to bacterial genomes (~4:1), implying that most gut phage are effectively temperate (e.

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  • * The rise of MDR is linked to factors like frequent medication use, limited drug variations, and self-medication, marking it as a major medical and social challenge.
  • * Research has identified genes and proteins responsible for MDR, with efforts to reverse this resistance focusing on maleimide synthesis and its potential in the co-administration of drugs to enhance treatment efficacy.
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  • Skeletal muscle is essential for movement and maintaining metabolic health, and this study focuses on understanding the role of p38α in mitochondrial metabolism, which is important for muscle-related diseases.
  • Using male mice and muscle cell cultures, researchers analyzed various biological parameters and genetic expressions to explore how p38α affects mitochondrial function.
  • The study revealed that p38α is crucial for regulating mitochondrial health, and its absence leads to significant changes that impact muscle strength, highlighting potential therapeutic targets for improving conditions related to muscle weakness.
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Two different hard-radiation phenomena are known to originate from thunderclouds: terrestrial gamma-ray flashes (TGFs) and gamma-ray glows. Both involve an avalanche of electrons accelerated to relativistic energies but are otherwise different. Glows are known to last for one to hundreds of seconds, have moderate intensities and originate from quasi-stationary thundercloud fields.

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Thunderstorms emit fluxes of gamma rays known as gamma-ray glows, sporadically observed by aircraft, balloons and from the ground. Observations report increased gamma-ray emissions by tens of percent up to two orders of magnitude above the background, sometimes abruptly terminated by lightning discharges. Glows are produced by the acceleration of energetic electrons in high-electric-field regions within thunderclouds and contribute to charge dissipation.

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  • Some babies with a specific mutation in the IL7R gene have a serious immune problem called SCID, where they lack a certain type of immune cells called T cells, but still have normal B and NK cells.
  • In a study of 6 adults who have a similar genetic issue, they showed low levels of T cells but had relatively normal levels of other immune cells, indicating a more specific problem in T cell development.
  • Even though their T cells didn’t grow well in the lab, the study hints that there might be another way T cells can develop that doesn’t depend solely on the IL-7 cytokine.
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  • Scientists studied how exercise affects tumors in mice with a type of aggressive cancer found in kids called neuroblastoma.
  • They put 14 male mice into two groups: one group exercised a lot for 5 weeks, and the other group did nothing.
  • The results showed that exercise changed many proteins in the tumors, helping us understand how working out might fight cancer better, especially by affecting energy use and how the body controls tumor growth.
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Introduction: The International Neuromodulation Society convened a multispecialty group of physicians based on expertise with international representation to establish evidence-based guidance on using intrathecal drug delivery in chronic pain treatment. This Polyanalgesic Consensus Conference (PACC)® project's scope is to provide evidence-based guidance for clinical pharmacology and best practices for intrathecal drug delivery for cancer pain.

Materials And Methods: Authors were chosen on the basis of their clinical expertise, familiarity with the peer-reviewed literature, research productivity, and contributions to the neuromodulation literature.

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Background: Current definition of chronic kidney disease (CKD) identifies only advanced stages, but effective management demands early detection. Urinary albumin-to-creatinine ratio (ACR) 30 mg/g is a cut-off point for CKD clinical diagnosis. Patients with lower values (normoalbuminuria) and eGFR > 60 mL/min/1.

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  • HIV-associated neurocognitive impairment (HIV-NCI) affects a significant percentage of people with HIV, even those receiving effective antiretroviral therapy, indicating that the condition remains a serious concern.
  • The study identified that the movement of specific immune cells (CD14+CD16+ monocytes) across the blood-brain barrier contributes to cognitive issues by damaging neurons and activating harmful responses in the brain.
  • It was found that people with HIV-NCI have increased transmigration of these monocytes compared to those with normal cognition, and factors like hypertension and diabetes may influence this relationship, highlighting the need for targeted treatments.
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Achieving sustainable resource use is a priority to meet future challenges. The Gulf of Cádiz, located in the Atlantic waters of southern Europe, is home to a significant fishing fleet due to the richness and diversity of its ecosystems. Managing this area is complex due to the diversity of variables, including social, ecological, and oceanographic factors.

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Ventricular fibrillation (VF) is a leading immediate cause of sudden cardiac death. There is a strong association between aging and VF, although the mechanisms are unclear, limiting the availability of targeted therapeutic interventions. Here we found that the stress kinases p38γ and p38δ are activated in the ventricles of old mice and mice with genetic or drug-induced arrhythmogenic conditions.

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Platelets are critical mediators of hemostasis and thrombosis. Platelets circulate as discs in their resting form but change shape rapidly upon activation by vascular damage and/or soluble agonists such as thrombin. Platelet shape change is driven by a dynamic remodeling of the actin cytoskeleton.

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