4,969,729 results match your criteria: "CO; Rocky Mountain Regional VA Medical Center[Affiliation]"

Spinal cord injury (SCI) leads to acute tissue damage that disrupts the microenvironmental homeostasis of the spinal cord, inhibiting cell survival and function, and thereby undermining treatment efficacy. Traditional stem cell therapies have limited success in SCI, due to the difficulties in maintaining cell survival and inducing sustained differentiation into neural lineages. A new solution may arise from controlling the fate of stem cells by creating an appropriate mechanical microenvironment.

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The Biological Properties of Co-Doped Monetite Are Influenced by Thermal Treatment.

J Biomed Mater Res B Appl Biomater

February 2025

Bioassays and Cellular Dynamics Lab, Department of Chemical and Biological Sciences, Institute of Biosciences, UNESP: São Paulo State University, São Paulo, Brazil.

Calcium phosphates, notably monetite, are valued biomaterials for bone applications owing to their osteogenic properties and rapid uptake by bone cells. This study investigates the enhancement of these properties through Cobalt doping, which is known to induce hypoxia and promote bone cell differentiation. Heat treatments at 700°C, 900°C, and 1050°C are applied to both monetite and Cobalt-doped monetite, facilitating the development of purer, more crystalline phases with varied particle sizes and optimized cellular responses.

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Electrochemically grown copper nanoclusters (CuNCs: < 3 nm) from single-atom catalysts have recently attracted intensive attention as electrocatalysts for CO2 and CO reduction reaction (CO2RR/CORR) because they exhibit distinct product selectivity compared with conventional Cu nanoparticles (typically larger than 10 nm). Herein, we conducted a detailed investigation into the size dependence of CuNCs on selectivity for multicarbon (C2+) production in CORR. These nanoclusters were electrochemically grown from single Cu atoms dispersed on covalent triazine frameworks (Cu-CTFs).

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Modulating Electronic Density of Single-Atom Ni Center by Heteroatoms for Efficient CO Electroreduction.

Small

January 2025

CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.

Single-atom catalysts (SACs) with unique geometric and electronic configurations have triggered great interest in many important reactions. However, controllably modulating the electronic structure of metal centers to enhance catalytic performance remains a challenge. Here, the electronic structure of Ni centers over Ni-NC SACs by introducing electron-rich phosphorus or electron-deficient boron for electrochemical CO reduction (CORR) is systematically tailored.

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Aims: To develop a transformer-based generative adversarial network (trans-GAN) that can generate synthetic material decomposition images from single-energy CT (SECT) for real-time detection of intracranial hemorrhage (ICH) after endovascular thrombectomy.

Materials: We retrospectively collected data from two hospitals, consisting of 237 dual-energy CT (DECT) scans, including matched iodine overlay maps, virtual noncontrast, and simulated SECT images. These scans were randomly divided into a training set (n = 190) and an internal validation set (n = 47) in a 4:1 ratio based on the proportion of ICH.

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This study aimed to assess the correlation between estimated pulse wave velocity (ePWV) and mortality rates related to all-cause and cardiovascular disease (CVD) among individuals diagnosed with chronic kidney disease (CKD) in the United States. A total of 4669 participants with CKD were identified from the National Health and Nutrition Examination Survey conducted between 1999 and 2018. We calculated the incidence of CKD using an estimated glomerular filtration rate (eGFR) of < 60 mL/min/1.

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Background: Care bundles are evidence-based practices intended to improve patient outcomes and have become a significant focus in intensive care.

Aim: This study aims to identify research trends, key topics, leading researchers, and significant collaborations in care bundle research within ıntensive care units by mapping the conceptual and intellectual structure of the field.

Study Design: Data were collected from the Web of Science database, covering publications from 2010 to 2024.

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Corneal substitutes with structural and compositional characteristics resembling those of natural corneas have attracted considerable attention. However, biomimicking the complex hierarchical organization of corneal stroma is challenging. In this study, humanized corneal stroma-like adhesive patches (HCSPs) are prepared through a multi-step process.

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Purpose: To evaluate the intraocular pressure (IOP) lowering effect and success rate of Paul glaucoma implant (PGI) in refractory glaucoma after changing practice pattern from Ahmed and Baerveldt tubes to PGI.

Methods: A prospective observational study of the first 50 consecutive PGI surgeries at a single Danish tertiary centre from January 2022 to October 2023. Primary endpoints were IOP and success rates after 12 months.

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A20 as a Potential Therapeutic Target for COVID-19.

Immun Inflamm Dis

January 2025

State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.

Background: Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a major concern due to its astonishing prevalence and high fatality rate, especially among elderly people. Patients suffering from COVID-19 may exhibit immunosuppression in the initial stage of infection, while a cytokine storm can occur when the disease progresses to a severe stage. This inopportune immune rhythm not only makes patients more susceptible to the virus but also leads to numerous complications resulting from the excessive production of inflammatory factors.

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Turning Waste into Treasure: Functionalized Biomass-Derived Carbon Dots for Superselective Visualization and Eradication of Gram-Positive Bacteria.

Adv Sci (Weinh)

January 2025

State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, 211189, P. R. China.

Gram-positive bacteria pose significant threats to human health, necessitating the development of targeted bacterial detection and eradication strategies. Nevertheless, current approaches often suffer from poor targeting specificity. Herein, the study utilizes purple rice lixivium to synthesize biomass carbon dots (termed BCDs) with wheat germ agglutinin-like residues for precisely targeting Gram-positive bacteria.

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Interface Engineering and Modulation of Nickel Oxide for High Air-Stable p-Type Crystalline Silicon Solar Cells.

Small

January 2025

Anhui Soltrend New Energy Technology Co., Ltd, Lujiang County, Hefei, 230000, China.

Dopant-free passivating contact crystalline silicon solar cells hold the potential of higher efficiency and cost down. In the hole-transport terminal, one still faces the challenge of trade-off between efficiency and stability. In this work, a H-AlO/NiO/Ni stacked hole-transport layer is proposed, where the H-AlO standing for H-rich AlO film can effectively reduce the interfacial defects and the high work function Ni metal results in a low contact resistance of 47.

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Objectives: To compare postoperative complication rates of patients with metabolic syndrome (MetS) with patients without MetS after holmium laser enucleation of the prostate (HoLEP) for management of benign prostatic hyperplasia (BPH).

Patients And Methods: We retrospectively reviewed patients aged >40 years who underwent HoLEP at our institution from 2007 to 2022. Criteria for MetS were diagnoses of at least three of the following: diabetes mellitus, hypertension, hyperlipidaemia, or obesity (body mass index ≥30 kg/m).

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Preeclampsia (PE) is a pregnancy-specific disorder characterized by an unclearly understood pathogenesis and poses a great threat to maternal and fetal safety. Cuproptosis, a novel form of cellular death, has been implicated in the advancement of various diseases. However, the role of cuproptosis and immune-related genes in PE is unclear.

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Background: Pulsed field ablation (PFA) is gaining recognition as a nonthermal, tissue-specific technique for the treatment of atrial fibrillation (AF). The preclinical evaluation of the investigated novel PFA system from Insight Medtech Co. Ltd has demonstrated feasibility, safety, and 30-day efficacy for pulmonary vein isolation (PVI) in the swine model.

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Natural Killer Cell Education in Women With Recurrent Pregnancy Loss.

Am J Reprod Immunol

February 2025

GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands.

Problem: Natural killer (NK) cells undergo education for full functionality via interactions between killer immunoglobulin-like receptors (KIRs) or NKG2A and human leukocyte antigen (HLA) ligands. Presumably, education is important during early pregnancy as insufficient education has been associated with impaired vascular remodeling and restricted fetal growth in mice. NK cell education is influenced by receptor co-expression patterns, human cytomegalovirus (CMV), the HLA-E107 dimorphism, and HLA-B leader peptide variants.

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Microalgae-bacteria systems present a promising approach for CO reduction in wastewater treatment. The effect of inoculation bacteria-algae ratio on performance was investigated in this study. Different inoculation ratios (bacteria: algae 1:2, 1:1, 1:0.

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Purpose: This study explores the effects of anthracycline chemotherapy (AC) on breast cancer patients, focusing on changes in body composition, advanced echocardiographic parameters at rest and during exercise, and biomarkers; and subsequently assesses whether these parameters are associated with impaired cardiorespiratory fitness (CRF).

Methods: In this prospective study, we evaluated women with early-stage breast cancer undergoing AC at three visits: before AC, 1 month after, and 6 months post-AC.

Results: The study included 32 women with breast cancer, with functional disability increasing from 9.

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Very High-Power Short-Duration Ablation for Atrial Fibrillation in Adults With Congenital Heart Disease.

J Cardiovasc Electrophysiol

January 2025

Department of Electrophysiology, German Heart Center Munich, TUM University Hospital, Munich, Bavaria, Germany.

Introduction: Data regarding safety and long-term outcome of very high-power-short duration (vHPSD) ablation in adult congenital heart disease (ACHD) patients with paroxysmal or persistent atrial fibrillation (AF) are lacking.

Methods: Retrospective observational single-center study. The data of 66 consecutive ACHD patients (mean age 60 ± 12.

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Advances in next-generation sequencing technology have enabled the high-throughput profiling of metagenomes and accelerated microbiome studies. Recently, there has been a rise in quantitative studies that aim to decipher the microbiome co-occurrence network and its underlying community structure based on metagenomic sequence data. Uncovering the complex microbiome community structure is essential to understanding the role of the microbiome in disease progression and susceptibility.

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The first-in-human, Phase 1 Study 101 showed antitumor activity and a tolerable safety profile of farletuzumab ecteribulin in Japanese patients with platinum-resistant ovarian and non-small cell lung cancer. A pharmacometric assessment evaluated farletuzumab ecteribulin pharmacokinetics and exposure-response (E-R) relationships for efficacy and safety to support dose optimization. Patients received 0.

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Ultrastructure expansion microscopy: Enlarging our perspective on apicomplexan cell division.

J Microsc

January 2025

Laboratory of Apicomplexan Biology, Institut Pasteur Montevideo, Montevideo, Uruguay.

Apicomplexans, a large phylum of protozoan intracellular parasites, well known for their ability to invade and proliferate within host cells, cause diseases with major health and economic impacts worldwide. These parasites are responsible for conditions such as malaria, cryptosporidiosis, and toxoplasmosis, which affect humans and other animals. Apicomplexans exhibit complex life cycles, marked by diverse modes of cell division, which are closely associated with their pathogenesis.

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Malaria and HIV co-infection are prevalent in sub-Saharan Africa causing significant drug interactions with co-treatment. We previously reported a 30%-70% reduction in exposure to the standard 3-day (6-dose) artemether-lumefantrine (AL) treatment for malaria when given with efavirenz-based HIV therapy, impacting malaria reinfection risk. We conducted a prospective, randomized study comparing the 3-day regimen to an extended 5-day (10-dose) regimen with pharmacokinetic sampling for artemether, dihydroartemisinin, lumefantrine, and desbutyl-lumefantrine (DBL) over 42 days.

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