720 results match your criteria: "University of Puerto Rico-Río Piedras Campus.[Affiliation]"

Targeting iron metabolism has emerged as a novel therapeutic strategy for the treatment of cancer. As such, iron chelator drugs are repurposed or specifically designed as anticancer agents. Two important chelators, deferasirox (Def) and triapine (Trp), attack the intracellular supply of iron (Fe) and inhibit Fe-dependent pathways responsible for cellular proliferation and metastasis.

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Is trauma associated with plant-based diet choice?

Appetite

December 2024

VA Boston Healthcare System, 150 South Huntington, Boston, MA, 02130, USA; National Center for PTSD, 150 South Huntington, Boston, MA, 02130, USA; Boston University School of Medicine, 72 East Concord St. Boston, MA, 02118, USA. Electronic address:

Examinations of links between plant-based diets (e.g., vegetarian and vegan diets) and indices of physical and mental health have received increased attention in the scientific literature in recent years.

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Tinoco A-Team Deferasirox (Def), an orally administered iron-chelating drug, has drawn significant interest in repurposing for anticancer application due to the elevated Fe demand by cancer cells. But there are also concerns about its severe off target health effects. Herein Cu(II) binding is studied as a potential off target interaction.

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Objective: Evaluate the relationship between diabetes and hypertension and COVID-19 booster uptake.

Methods: Members of the Community Outreach Group of the Puerto Rico Community Engagement Alliance Against COVID-19 Disparities (PR-CEAL) administered a survey at 229 community events between November 2021 and May 2023. Information on 2,145 participants' sociodemographic information and chronic disease diagnoses was gathered.

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The abuse of psychoactive substances poses a critical public health challenge in Puerto Rico, with far-reaching implications for both individuals and society as a whole. This article provides a comprehensive overview of the patterns and trends associated with drug abuse in Puerto Rico, focusing on alcohol, tobacco, cannabis, benzodiazepines, opioids, and methadone. Recent statistics reveal a concerning increase in substance abuse, particularly among young adults.

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Aqueous trivalent metal batteries are promising options for energy storage, owing to their ability to transfer three electrons during redox reactions. However, advances in this field have been limited by challenges such as incompatible M/M electrode potentials and salt hydrolysis. Herein, we identify the trivalent indium metal as a viable candidate and demonstrate a high-performance indium-Prussian blue hybrid battery using a K/In mixture electrolyte.

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  • Religiosity plays a significant role in promoting human well-being and influencing health, serving both protective and risk factors.
  • The Duke University Religion Index (DUREL) is a widely used tool for measuring various dimensions of religiosity, consisting of five items that evaluate organizational, non-organizational, and intrinsic aspects.
  • A study involving 411 Puerto Rican adults confirmed the DUREL's reliability and validity, establishing it as an effective measure for assessing religiosity within this community.
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Amidst the swift expansion of the electric vehicle industry, the imperative for alternative battery technologies that balance economic feasibility with sustainability has reached unprecedented importance. Herein, we utilized Perovskite-based oxide compounds barium titanate (BaTiO) and strontium titanate (SrTiO) nanoparticles as anode materials for lithium-ion batteries from straightforward and standard carbonate-based electrolyte with 10% fluoroethylene carbonate (FEC) additive [1M LiPF (1:1 EC: DEC) + 10% FEC]. SrTiO and BaTiO electrodes can deliver a high specific capacity of 80 mA h g at a safe and low average working potential of ≈0.

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REVEALS: an open-source multi-camera GUI for rodent behavior acquisition.

Cereb Cortex

October 2024

Neurobiology Section in the Department of Biology, Boston University, Boston, MA, United States.

Article Synopsis
  • Understanding mouse behavior is essential for studying brain functions, but current methods for collecting this data are inadequate and costly.
  • REVEALS (Rodent Behavior Multi-Camera Laboratory Acquisition) is a new software tool that allows researchers to easily record and manage rodent behavior using multiple USB3 cameras.
  • This open-source framework enhances existing data analysis pipelines and improves the collection of large behavioral datasets, helping scientists identify complex behaviors efficiently.
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Silicon (Si) has attracted worldwide attention for its ultrahigh theoretical storage capacity (4200 mA h g), low mass density (2.33 g cm), low operating potential (0.4 V vs.

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  • The discovery of regulated cell death (RCD) transformed chemotherapy, shifting focus from solely targeting caspase-dependent apoptosis to exploring other forms of RCD due to limitations like drug resistance and lack of cancer specificity.
  • Recent findings about ferroptosis, a new iron-dependent cell death pathway, show it has potential as a therapeutic tool against cancer.
  • Research is ongoing to understand how the balance of iron, copper, and zinc affects ferroptosis and how coordination chemistry can be used to enhance this process in cancer treatment.
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  • The NeuroID program, funded by NINDS, has trained many undergraduate Hispanic students at UPR-RP over the last 14 years in neuroscience research.
  • It has successfully prepared these students for graduate programs and enhanced diversity in academia and science.
  • The program focuses on three main objectives: providing research career insights, establishing mentorship networks, and connecting local universities with prestigious research institutions in the U.S.
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  • HIV-1 infects macrophages that release neurotoxic substances like cathepsin B (CATB), leading to cognitive issues, with cocaine enhancing this effect.
  • Treatment with BD1047, a sigma-1 receptor antagonist, prior to cocaine exposure lowers HIV-1 replication and CATB secretion, reducing neuronal cell death.
  • Proteomic analysis revealed that BD1047 dysregulated 80 proteins related to HIV-1, CATB, and mitochondrial functions, suggesting it helps protect cells by improving mitochondrial health and reducing neurotoxicity.
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  • The study examines patient activation, which refers to the willingness of individuals to manage their health, focusing on childhood cancer survivors and its effect on psychological outcomes and health behaviors.
  • Among 2,708 childhood cancer survivors, lower levels of activation were observed compared to the control group, with survivors demonstrating more instances of low activation and fewer high activation levels.
  • The results indicate that higher activation is linked to better mental health, quality of life, and adherence to physical activity guidelines, suggesting that enhancing patient activation could provide significant benefits for survivors' overall well-being.
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  • - Fast-spiking parvalbumin (PV)-positive cells are crucial for regulating activity in pyramidal neurons, and their malfunction is linked to various brain diseases.
  • - Researchers created a transgenic model to study the effects of overexpressing a schizophrenia-related gene in PV cells, revealing gender-specific changes in anxiety behavior and impairments in synaptic function in the prefrontal cortex (PFC).
  • - A computational model showed that these impairments lead to increased neural activity and communication issues, highlighting that disruptions in fast-spiking neurons are particularly harmful for circuits related to anxiety-like behavior.
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  • Tin (Sn) metal is being explored as a better anode for aqueous batteries due to its high capacity, low toxicity, and affordability, but it has issues when used with strong sulfuric acids that cause electrode corrosion and hydrogen gas problems.
  • A new low-acidity tin chloride electrolyte (pH=1.09) is proposed, which avoids harsh acids and allows for effective Sn plating without dendrites, achieving impressive plating efficiency of up to 99.97% under standard test conditions.
  • The research also extends battery life significantly (up to 3064 hours) and presents a solution for preventing Sn2+ oxidation on the cathode, paving the way for more durable Sn||LiMn2O4 hybrid batteries.
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  • Transition metal oxides like CuO are being explored as effective anode materials for high-energy lithium-ion batteries, but optimizing their efficiency when paired with carbon is challenging.
  • This research presents a simple method to create CuO nano powder combined with a carbon matrix, using a CMC-based binder and fluoroethylene carbonate additives, resulting in superior performance compared to traditional binders.
  • The CuO@CMC electrodes achieved a significant capacity of ~1100 mA h g and maintained strong cycling stability, showing potential for future high-energy storage applications.
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Maternal Mental Health in Latinx/Hispanic Women after COVID-19 Pandemic.

P R Health Sci J

September 2024

Department of Psychiatry, University of Puerto Rico, Medical Sciences Campus, San Juan, Puetro Rico; School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, Puetro Rico.

Article Synopsis
  • The COVID-19 pandemic has adversely affected the mental health of many individuals, particularly birthing and postpartum women, as they faced significant changes in their daily lives and access to care.
  • A study in Puerto Rico involving 47 mothers showed that depression and anxiety levels significantly increased from the period of March 2020 to April 2021 (T1) compared to May 2022 to May 2023 (T2).
  • Despite some mothers indicating they no longer view the pandemic as a major stressor, feelings of loneliness, sadness, and worry persist, suggesting the need for further exploration of factors affecting maternal mental health during the perinatal period.
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Introduction: Traumatic brain injury (TBI) can impact language processing, necessitating language-tailored approaches. Telehealth may expand rural Veterans' access but has unknown feasibility for language preferences. This study explored telehealth/Veterans Video Connect satisfaction for Spanish/English TBI screening.

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Alginate-Based UV Sensor: A Simple and Inexpensive Tool for Educational Purposes.

J Chem Educ

August 2024

University of Puerto Rico, Rio Piedras Campus, 17 Ave Universidad STE 1701, San Juan, Puerto Rico, 00925-2537.

This document presents a simple yet highly effective demonstration for creating UV radiation sensors using alginate molecules. This demonstration can easily be aligned with the Next Generation Science Standards (NGSS) for classroom use. Moreover, the demonstration requires only a few easily obtainable materials, and the process involved is straightforward.

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  • The electrochemical CO reduction reaction (CORR) is important for producing chemicals and fuels while supporting clean energy and environmental goals.
  • Decorated single-atom catalysts (D-SACs) have been widely studied for CORR, but new double-atom catalysts (DACs) offer promising advantages, although they are challenging to synthesize.
  • The authors propose a new D-SAC system (M@gra+Cu) that combines a graphene layer and a copper surface, identifying specific metal combinations (Co, Ni, Cu, Rh, Pd) that show potential for improved efficiency in CORR.
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Introduction: In recent decades, Caribbean coral reefs have lost many vital marine species due to diseases. The well-documented mass mortality event of the long-spined black sea urchin in the early 1980s stands out among these collapses. This die-off killed over 90% of changing the reefscape from coral to algal-dominated.

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Iron oxide nanoparticles (IONPs) are recognized for their potential in biomedical applications due to their distinctive physicochemical properties. This study investigates the synthesis of IONPs with various geometric morphologies-cubic, star-like, truncated icosahedron, and spherical-via thermal decomposition to enhance their utility in magnetic resonance imaging (MRI) and targeted drug delivery. X-ray diffraction analysis verified the FeO phase in all nanoparticles, illustrating the synthesis's efficacy.

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  • The text discusses a specific bacterium found in tropical and subtropical regions that can cause severe illnesses in humans and animals; the focus is on synthesizing new acyl homoserine lactones (HSLs) to evaluate their ability to inhibit bacterial communication (quorum sensing).
  • The synthesized HSLs were tested for their effectiveness in reducing the production of specific signaling molecules and biofilms, with the most effective compound being -(2-hexadecynoyl)-l-homoserine lactone, which showed significant activity at various concentrations without being toxic to Vero cells.
  • Molecular docking studies further indicate that this compound interacts favorably with the CviR receptor, suggesting that these novel H
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CienciaPR, a nonprofit that brings together the largest network of Puerto Rican scientists and one of the largest networks of Hispanic/Latine scientists in the world, has collaborated with El Nuevo Día (END), Puerto Rico's newspaper of record, to increase culturally relevant stories in their science section. This Practice Insight quantifies and compares the presence of culturally relevant elements (e.g.

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