keyword
https://read.qxmd.com/read/38716988/beyond-the-grace-acs-score-do-we-need-a-different-model-for-men-and-women-after-stemi
#21
JOURNAL ARTICLE
José Sergio Nascimento Silva, Isly Maria Lucena de Barros, Jorge Augusto Nunes Guimarães, Davide Cao, Sílvia Marinho Martins, Tawanna Xavier Marques de Carvalho, Rayssa Santana de Farias, Viviana Lemke, Roxana Mehran, Rodrigo Pedrosa
BACKGROUND: Women, in comparison to men, experience worse outcomes after acute coronary syndrome (ACS). However, whether the female sex per se is an independent predictor of such adverse events remains unclear. OBJECTIVE: This study aims to assess the association between the female sex and in-hospital mortality after ST-elevation myocardial infarction (STEMI). METHODS: We conducted a retrospective cohort study by enrolling consecutive STEMI patients admitted to a tertiary hospital from January 2018 to February 2019...
April 2024: Arquivos Brasileiros de Cardiologia
https://read.qxmd.com/read/38709957/magnetic-anisotropy-and-relaxation-in-four-coordinate-cobalt-ii-single-ion-magnets-with-a-co-ii-o-4-core
#22
JOURNAL ARTICLE
Hui-Hui Cui, Hongjuan Xu, Tengkun Zhang, Qiukai Chen, Shuchang Luo, Miao Wang, Jin Wang, Lei Chen, Mingxing Zhang, Yanfeng Tang
A mononuclear four-coordinate Co(II) complex with a [CoII O4 ] core, namely, PPN[Li(MeOH)4 ][Co(L)2 ] ( 1 ) (PPN = bis(phosphoranediyl)iminium; H2 L = perfluoropinacol), has been studied by X-ray crystallography, magnetic characterization, and theoretical calculations. This complex presents a severely distorted coordination geometry. The O-Co-O bite angle is 83.42°/83.65°, and the dihedral twist angle between the O-Co-O chelate planes is 55.6°. The structural distortion results in a large easy-axis magnetic anisotropy with D = -104(1) cm-1 and a transverse component with | E | = +4(2) cm-1 ...
May 6, 2024: Inorganic Chemistry
https://read.qxmd.com/read/38709515/time-is-ripe-for-targeting-per-and-polyfluoroalkyl-substances-induced-hormesis-global-aquatic-hotspots-and-implications-for-ecological-risk-assessment
#23
JOURNAL ARTICLE
Tao Sun, Chenglong Ji, Fei Li, Huifeng Wu
Globally implemented ecological risk assessment (ERA) guidelines marginalize hormesis, a biphasic dose-response relationship characterized by low-dose stimulation and high-dose inhibition. The present study illuminated the promise of hormesis as a scientific dose-response model for ERA of per- and polyfluoroalkyl substances (PFAS) represented by perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). A total of 266 hormetic dose-response relationships were recompiled from 1237 observations, covering 30 species from nine representative taxonomic groups...
May 6, 2024: Environmental Science & Technology
https://read.qxmd.com/read/38708282/an-isolated-perfused-rat-liver-model-simultaneous-lc-ms-quantification-of-pitavastatin-coproporphyrin-i-and-coproporphyrin-iii-levels-in-the-rat-liver-and-bile
#24
JOURNAL ARTICLE
Nihan Izat, Ozan Kaplan, Mustafa Çelebier, Selma Sahin
The isolated perfused rat liver (IPRL) model provides a mechanistic understanding of the organic-anion-transporting polypeptide (OATP/Oatp)-mediated pharmacokinetics in the preclinical evaluation, which often requires the use of control substrates (i.e., pitavastatin) and monitoring endogenous biomarkers (coproporphyrin I and III). This study aimed to develop and validate an LC-MS method allowing the simultaneous quantification of pitavastatin, coproporphyrin I (CPI), and coproporphyrin III (CPIII) in rat liver perfusion matrices (perfusate, liver homogenate, bile)...
April 30, 2024: ACS Omega
https://read.qxmd.com/read/38708206/adapting-fabric-phase-sorptive-extraction-as-an-innovative-multitool-for-sample-transfer-and-extraction-in-pharmacokinetic-analysis-followed-by-lc-ms-determination-of-levofloxacin-in-plasma-samples
#25
JOURNAL ARTICLE
Yasemin Ekin Dolaksız, Mustafa Sinan Kaynak, Abuzar Kabir, Kenneth G Furton, Mustafa Çelebier
Fabric phase sorptive extraction (FPSE) is a simple microextraction technique that allows analytes to be rescued from matrix components while using a small volume of samples to analyze complex biological systems. This study used FPSE as a microextraction tool and a sample storage and transfer device. Levofloxacin as a model molecule was applied intravenously (IV) to New Zealand male rabbits. The samples were simultaneously extracted by using FPSE and protein precipitation methods. The final solutions were analyzed using LC-MS equipped with an ACE C18 LC Column (150 mm × 4...
April 30, 2024: ACS Omega
https://read.qxmd.com/read/38700032/impact-of-society-guidelines-on-trends-in-use-of-newer-p2y-12-inhibitors-for-patients-with-acute-coronary-syndromes-undergoing-percutaneous-coronary-intervention
#26
JOURNAL ARTICLE
Mohamed O Mohamed, Evangelos Kontopantelis, Mirvat Alasnag, Leila Abid, Amitava Banerjee, Andrew S P Sharp, Christos Bourantas, Alex Sirker, Nick Curzen, Mamas A Mamas
BACKGROUND: Over the past decade, major society guidelines have recommended the use of newer P2Y12 inhibitors over clopidogrel for those undergoing percutaneous coronary intervention for acute coronary syndrome. It is unclear what impact these recommendations had on clinical practice. METHODS AND RESULTS: All percutaneous coronary intervention procedures (n=534 210) for acute coronary syndrome in England and Wales (April 1, 2010, to March 31, 2022) were retrospectively analyzed, stratified by choice of preprocedural P2Y12 inhibitor (clopidogrel, ticagrelor, and prasugrel)...
May 3, 2024: Journal of the American Heart Association
https://read.qxmd.com/read/38695619/outlining-the-hidden-curriculum-perspectives-on-successfully-navigating-scientific-conferences
#27
REVIEW
Eduardo J Caro-Diaz, Marcy J Balunas, Lesley-Ann Giddings, Sandra Loesgen, Brian T Murphy, C Benjamin Naman, Christine E Salomon, Kevin J Tidgewell, Jaclyn M Winter
Scientific conferences and meetings are valuable opportunities for researchers to network, communicate, and develop knowledge. For early career scientists, conferences can also be intimidating, confusing, and overwhelming, especially without having adequate preparation or experience. In this Perspective, we provide advice based on previous experiences navigating scientific meetings and conferences. These guidelines outline parts of the hidden curriculum around preparing for and attending meetings, navigating conference sessions, networking with other scientists, and participating in social activities while upholding a recommended code of conduct...
May 2, 2024: Journal of Natural Products
https://read.qxmd.com/read/38690845/improved-data-acquisition-settings-on-q-exactive-hf-x-and-fusion-lumos-tribrid-orbitrap-based-mass-spectrometers-for-proteomic-analysis-of-limited-samples
#28
JOURNAL ARTICLE
Michal Greguš, Antonius Koller, Somak Ray, Alexander R Ivanov
Deep proteomic profiling of complex biological and medical samples available at low nanogram and subnanogram levels is still challenging. Thorough optimization of settings, parameters, and conditions in nanoflow liquid chromatography-tandem mass spectrometry (MS)-based proteomic profiling is crucial for generating informative data using amount-limited samples. This study demonstrates that by adjusting selected instrument parameters, e.g., ion injection time, automated gain control, and minimally altering the conditions for resuspending or storing the sample in solvents of different compositions, up to 15-fold more thorough proteomic profiling can be achieved compared to conventionally used settings...
May 1, 2024: Journal of Proteome Research
https://read.qxmd.com/read/38690765/polymer-coatings-affect-transport-and-remobilization-of-colloidal-activated-carbon-in-saturated-sand-columns-implications-for-in-situ-groundwater-remediation
#29
JOURNAL ARTICLE
Xun Guan, Lingchen Kong, Chenwei Liu, Dimin Fan, Bridget Anger, William P Johnson, Gregory V Lowry, Guangbin Li, Anthony Danko, Xitong Liu
Colloidal activated carbon (CAC) is an emerging technology for the in situ remediation of groundwater impacted by per- and polyfluoroalkyl substances (PFAS). In assessing the long-term effectiveness of a CAC barrier, it is crucial to evaluate the potential of emplaced CAC particles to be remobilized and migrate away from the sorptive barrier. We examine the effect of two polymer stabilizers, carboxymethyl cellulose (CMC) and polydiallyldimethylammonium chloride (PolyDM), on CAC deposition and remobilization in saturated sand columns...
May 1, 2024: Environmental Science & Technology
https://read.qxmd.com/read/38684131/unveiling-pharmacokinetics-and-drug-interaction-of-linagliptin-and-pioglitazone-hcl-in-rat-plasma-using-lc-ms-ms
#30
JOURNAL ARTICLE
Heba Aref, Sherin Hammad, Khaled M Darwish, Mohamed S Elgawish
The linagliptin (LIN) and pioglitazone HCl (PIO) combination, currently undergoing phase III clinical trials for diabetes mellitus treatment, demonstrated significant improvements in glycemic control. However, the absence of an analytical method for simultaneous determination in biological fluids highlights a crucial gap. This underscores the pressing need for sensitive bioanalytical methods, emphasizing the paramount importance of developing such tools to advance diabetes management strategies and enhance patient care...
April 29, 2024: Chemical Research in Toxicology
https://read.qxmd.com/read/38680319/antimicrobial-preservative-and-hazard-assessments-from-eight-chemical-classes
#31
JOURNAL ARTICLE
Lauren Lynn, Rachel C Scholes, Jong H Kim, Jennifer H Wilson-Welder, William J Orts, William M Hart-Cooper
Preservatives, such as isothiazolinones and formaldehyde-releasing compounds, provide safety and stability in consumer products by preventing microbial contamination. Yet these ingredients present human and environmental hazards, including allergic contact dermatitis and aquatic toxicity. The development of safer alternatives has been stymied by trade-offs between safety and efficacy. To enable the identification of safer preservatives, substances from eight functional classes were assessed for antimicrobial efficacy and human and environmental hazards...
April 23, 2024: ACS Omega
https://read.qxmd.com/read/38676704/flat-histogram-monte-carlo-simulation-of-water-adsorption-in-metal-organic-frameworks
#32
JOURNAL ARTICLE
Daniel W Siderius, Harold W Hatch, Vincent K Shen
Molecular simulations of water adsorption in porous materials often converge slowly due to sampling bottlenecks that follow from hydrogen bonding and, in many cases, the formation of water clusters. These effects may be exacerbated in metal-organic framework (MOF) adsorbents, due to the presence of pore spaces (cages) that promote the formation of discrete-size clusters and hydrophobic effects (if present), among other reasons. In Grand Canonical Monte Carlo (MC) simulations, these sampling challenges are typically manifested by low MC acceptance ratios, a tendency for the simulation to become stuck in a particular loading state (i...
April 27, 2024: Journal of Physical Chemistry. B
https://read.qxmd.com/read/38672691/imiquimod-is-effective-in-reducing-cervical-intraepithelial-neoplasia-a-systematic-review-and-meta-analysis
#33
REVIEW
Balázs Hamar, Brigitta Teutsch, Eszter Hoffmann, Péter Hegyi, Andrea Harnos, Péter Nyirády, Zsombor Hunka, Nándor Ács, Ferenc Bánhidy, Zsolt Melczer
INTRODUCTION: Topical Imiquimod is an immune response modifier approved for the off-label use of vulvar intraepithelial neoplasia. We conducted this systematic review and meta-analysis to investigate the efficacy and safety of Imiquimod in treating cervical intraepithelial neoplasia (CIN) and human papillomavirus (HPV)-positive patients. METHODS: The study was prospectively registered (CRD420222870) and involved a comprehensive systematic search of five medical databases on 10 October 2022...
April 22, 2024: Cancers
https://read.qxmd.com/read/38660456/cancer-and-arterial-thrombosis-therapeutic-options
#34
JOURNAL ARTICLE
May Anne Cheong, Avi Leader
A State of the Art lecture titled "Cancer and Arterial Thrombosis: Therapeutic Options" was presented at the International Society on Thrombosis and Haemostasis Congress in 2023. This State of the Art review delves into the complex relationship between cancer and arterial thromboembolism (ATE), encompassing acute coronary syndrome, ischemic strokes, and peripheral arterial disease. The burden of cancer-associated ATE is not well defined, but studies indicate elevated risks, particularly in the 6 months after a cancer diagnosis...
March 2024: Research and Practice in Thrombosis and Haemostasis
https://read.qxmd.com/read/38658130/an-innovative-artificial-intelligence-based-method-to-compress-complex-models-into-explainable-model-agnostic-and-reduced-decision-support-systems-with-application-to-healthcare-near
#35
JOURNAL ARTICLE
Karim Kassem, Michela Sperti, Andrea Cavallo, Andrea Mario Vergani, Davide Fassino, Monica Moz, Alessandro Liscio, Riccardo Banali, Michael Dahlweid, Luciano Benetti, Francesco Bruno, Guglielmo Gallone, Ovidio De Filippo, Mario Iannaccone, Fabrizio D'Ascenzo, Gaetano Maria De Ferrari, Umberto Morbiducci, Emanuele Della Valle, Marco Agostino Deriu
BACKGROUND AND OBJECTIVE: In everyday clinical practice, medical decision is currently based on clinical guidelines which are often static and rigid, and do not account for population variability, while individualized, patient-oriented decision and/or treatment are the paradigm change necessary to enter into the era of precision medicine. Most of the limitations of a guideline-based system could be overcome through the adoption of Clinical Decision Support Systems (CDSSs) based on Artificial Intelligence (AI) algorithms...
May 2024: Artificial Intelligence in Medicine
https://read.qxmd.com/read/38653253/-gender-perspective-in-the-care-experience-and-in-the-results-of-patients-who-consult-for-chest-pain-in-an-emergency-department
#36
JOURNAL ARTICLE
María F Grande-Ratti, María C Llamedo, Agustina B Pires, María V Giuffre, Brenda N Garrido, Agustina Saldarini, Pedro Touzas, Bernardo Martínez, Ignacio M Bluro
OBJECTIVE: Clinical practice guidelines suggest performing an electrocardiogram (EKG) in patients with chest pain within the first 10 minutes in the emergency department, warning about subdiagnosis in women. Possible differences based on sex were analyzed. METHOD: An observational and retrospective study in an Emergency Department, with adult patients admitted to the Chest Pain Unit in 2021. RESULTS: There were 1,469 patients, of whom 774 were men (52...
April 23, 2024: Archivos de Cardiología de México
https://read.qxmd.com/read/38648370/optimal-molecular-dynamics-system-size-for-increased-precision-and-efficiency-for-epoxy-materials
#37
JOURNAL ARTICLE
Khatereh Kashmari, Sagar U Patil, Josh Kemppainen, Gowtham Shankara, Gregory M Odegard
Molecular dynamics (MD) simulation is an important tool for predicting thermo-mechanical properties of polymer resins at the nanometer length scale, which is particularly important for efficient computationally driven design of advanced composite materials and structures. Because of the statistical nature of modeling amorphous materials on the nanometer length scale, multiple MD models (replicates) are typically built and simulated for statistical sampling of predicted properties. Larger replicates generally provide higher precision in the predictions but result in higher simulation times...
April 22, 2024: Journal of Physical Chemistry. B
https://read.qxmd.com/read/38644068/acute-coronary-syndrome-in-patients-treated-by-vitamin-k-antagonists-or-non-vitamin-k-antagonist-oral-anticoagulants-proposed-management-algorithm-for-the-first-48hours
#38
REVIEW
Alexandre Salaun, Emmanuel de Maistre, Marlène Daller, Chan Sombrun, Frédéric Chagué, Florence Bichat, Luc Rochette, Nicolas Danchin, Laurent Fauchier, Marianne Zeller, Yves Cottin
Around 10% of patients with acute coronary syndrome are treated by vitamin K antagonists or non-vitamin K antagonist oral anticoagulants for various indications. The initial management of these patients is highly complex, and new guidelines specify that, only during percutaneous coronary intervention, a bolus of unfractionated heparin is recommended in one of the following circumstances: (1) if the patient is receiving a non-vitamin K antagonist oral anticoagulant; or (2) if the international normalized ratio is<2...
April 12, 2024: Archives of Cardiovascular Diseases
https://read.qxmd.com/read/38639348/danspot-a-multicenter-stepped-wedge-cluster-randomized-trial-of-the-reclassification-of-acute-myocardial-infarction-rationale-and-study-design
#39
JOURNAL ARTICLE
Nina Strandkjær, Nicoline Jørgensen, Rasmus Bo Hasselbalch, Jonas Kristensen, Marie Sophie Sander Knudsen, Thilde Olivia Kock, Theis Lange, Matias Greve Lindholm, Niels Eske Bruun, Lene Holmvang, Christian Juhl Terkelsen, Claus Kjær Pedersen, Martin Kirk Christensen, Jens Flensted Lassen, Linda Hilsted, Søren Ladefoged, Mads Nybo, Mustafa Vakur Bor, Morten Dahl, Annebirthe Bo Hansen, Pia Rørbæk Kamstrup, Henning Bundgaard, Christian Torp-Pedersen, Kasper Karmark Iversen
BACKGROUND: Cardiac troponins are the preferred biomarkers for the diagnosis of acute myocardial infarction. Although sex-specific 99th percentile thresholds of troponins are recommended in international guidelines, the clinical effect of their use is poorly investigated. The DANSPOT Study (The Danish Study of Sex- and Population-Specific 99th percentile upper reference limits of Troponin) aims to evaluate the clinical effect of a prospective implementation of population- and sex-specific diagnostic thresholds of troponins into clinical practice...
April 19, 2024: Journal of the American Heart Association
https://read.qxmd.com/read/38637013/real-time-monitoring-of-adsorption-induced-scrolling-of-colloidal-inorganic-nanosheets
#40
JOURNAL ARTICLE
Takumi Harada, Yasutaka Suzuki, Teruyuki Nakato, Josef Breu, Jun Kawamata
Inorganic nanotubes have attracted much attention due to their unique physicochemical properties. Nanotubes can be prepared by scrolling exfoliated nanosheets under ambient conditions. However, how the nanosheet scrolled in its colloidal state has not been experimentally visualized. In this paper, we directly observed the scrolling process of nanosheets upon adsorption of organic cations. Exfoliated flat nanosheets of niobate and clay in aqueous colloids were found to scroll by adding organic cations, such as exfoliation reagents, to the colloids...
April 18, 2024: Langmuir: the ACS Journal of Surfaces and Colloids
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