529,940 results match your criteria: "and Texas A & M Health Science Center College of Medicine[Affiliation]"

Severe acute respiratory syndrome coronavirus-1 (SARS-CoV-1) and -2 (SARS-CoV-2) are beta-coronaviruses (β-CoVs) that have caused significant morbidity and mortality worldwide. Therefore, a better understanding of host responses to β-CoVs would provide insights into the pathogenesis of these viruses to identify potential targets for medical countermeasures. In this study, our objective is to use a systems biology approach to explore the magnitude and scope of innate immune responses triggered by SARS-CoV-1 and -2 infection over time in pathologically relevant human lung epithelial cells (Calu-3/2B4 cells).

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Triethylamine-mediated protonation-deprotonation unlocks dual-drug self assembly to suppress breast cancer progression and metastasis.

Proc Natl Acad Sci U S A

February 2025

Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, People's Republic of China.

Carrier-free nanomedicines exhibited significant potential in elevating drug efficacy and safety for tumor management, yet their self assembly typically relied on chemical modifications of drugs or the incorporation of surfactants, thereby compromising the drug's inherent pharmacological activity. To address this challenge, we proposed a triethylamine (TEA)-mediated protonation-deprotonation strategy that enabled the adjustable-proportion self assembly of dual drugs without chemical modification, achieving nearly 100% drug loading capacity. Molecular dynamic simulations, supported by experiment evidence, elucidated the underlying self-assembly mechanism.

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The ε4 variant of human apolipoprotein E () is a key genetic risk factor for neurodegeneration in Alzheimer's disease and elevated all-cause mortality in humans. Understanding the factors and mechanisms that can mitigate the harmful effects of has significant implications. In this study, we find that inactivating the VHL-1 (Von Hippel-Lindau) protein can suppress mortality, neural and behavioral pathologies caused by transgenic human in .

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The highest sheet symmetry form of graphyne, with one triple bond between each neighboring hexagon in graphene, irreversibly transforms exothermically at ambient pressure and low temperatures into a nongraphitic, planar-sheet, zero-bandgap phase consisting of intrasheet-bonded sp carbons. The synthesis of this sp carbon phase is demonstrated, and other carbon phases are described for possible future synthesis from graphyne without breaking graphyne bonds. While measurements and theory indicate that the reacting graphyne becomes nonplanar because of sheet wrinkling produced by dimensional mismatch between reacted and nonreacted sheet regions, sheet planarity is regained when the reaction is complete.

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We present a case of Acute Angle-Closure Crisis (AACC) precipitated by primary transient psychogenic polydipsia; we believe that our case is the first of its kind to be reported. A 74-year-old male presented to the emergency department with altered mental status due to acute-onset hyponatremia. Six days after admission, the patient noticed painful loss of vision in his right eye and an ipsilateral headache lasting 10-15 minutes.

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Improving Bond Dissociations of Reactive Machine Learning Potentials through Physics-Constrained Data Augmentation.

J Chem Inf Model

January 2025

Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.

In the field of computational chemistry, predicting bond dissociation energies (BDEs) presents well-known challenges, particularly due to the multireference character of reactive systems. Many chemical reactions involve configurations where single-reference methods fall short, as the electronic structure can significantly change during bond breaking. As generating training data for partially broken bonds is a challenging task, even state-of-the-art reactive machine learning interatomic potentials (MLIPs) often fail to predict reliable BDEs and smooth dissociation curves.

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Incident heart failure and recurrent coronary events following acute myocardial infarction.

Eur Heart J

January 2025

Center for Advanced Heart and Lung Disease and Baylor Heart and Vascular Institute, Baylor University Medical Center, 3410 Worth St, Ste 250, Dallas, TX 75226, USA.

Background And Aims: Recurrent myocardial infarction (MI) and incident heart failure (HF) are major post-MI complications. Herein, contemporary post-MI risks for recurrent MI and HF are described.

Methods: A total of 6804 patients with a primary discharge diagnosis of MI at 28 Baylor Scott & White Health hospitals (January 2015 to December 2021) were studied.

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Phenotypic Classification of Multisystem Inflammatory Syndrome in Children Using Latent Class Analysis.

JAMA Netw Open

January 2025

Coronavirus and Other Respiratory Viruses Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.

Importance: Multisystem inflammatory syndrome in children (MIS-C) is an uncommon but severe hyperinflammatory illness that occurs 2 to 6 weeks after SARS-CoV-2 infection. Presentation overlaps with other conditions, and risk factors for severity differ by patient. Characterizing patterns of MIS-C presentation can guide efforts to reduce misclassification, categorize phenotypes, and identify patients at risk for severe outcomes.

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A case of severe TBI: Recovery?

Appl Neuropsychol Child

January 2025

Department of Psychology and Neuroscience Center, Brigham Young University, Provo, USA.

Chronic stage neuropsychological assessments of children with severe TBI typically center around a referral question and focus on assessing cognitive, behavioral, and emotional functioning, making differential diagnoses, and planning treatment. When severe TBI-related neurological deficits are subtle and fall outside commonly assessed behavioral indicators, as can happen with theory of mind and social information processing, they can go unobserved and subsequently fail to be assessed. Additionally, should chronic stage cognitive, behavioral, and emotional assessment findings fall within the average to above average range, a child experiencing ongoing significant unassessed severe TBI-related subtle deficits could be mistakenly judged to have "recovered" from their injury; and to be experiencing no significant ongoing residual neurological deficits.

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Objectives: Pathways Community Hub (PCH) programs help connect pregnant women to healthcare and social services. A scoping review of peer-reviewed studies on PCHs that reported quantitative outcomes was conducted.

Methods: A search of academic databases from 1901 to 2024 initially yielded a total of 1,312 articles, which was ultimately reduced to 4 articles after duplicates were removed, and two levels of screening were conducted to determine whether studies met the inclusion criteria of evaluating a community hub for pregnant women, was written in English, was peer-reviewed, and reported quantitative outcomes.

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Rationale: Fentanyl and fentanyl analogs continue to pose a serious threat to the public health. The vast number of fentanyl analogs emerging on the black-market call for optimized analytical methods for the detection, analysis, and characterization of these extremely dangerous drugs.

Methods: Atmospheric pressure solids analysis probe (ASAP) mass spectrometry was used for the rapid analysis of 250 synthetic opioid standards, including 211 fentanyl analogs, 32 non-fentanyl related opioids, and 8 fentanyl precursors.

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Purpose: Improvements in the treatment of advanced cancer have increased life expectancy but have also increased the costs to healthcare systems, patients and their families. A systematic review is needed to summarize research work on the cost of cancer. The primary objective was to describe the characteristics and methodology of studies investigating the cost of cancer during the palliative phase.

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In silico screening and immunogenic features of putative tick cement protein PA107 from Ixodes ricinus tick.

Exp Appl Acarol

January 2025

Group for Medical Entomology, Centre of Excellence for Food- and Vector-Borne Zoonoses, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia.

Tick salivary proteins are crucial for efficient and successful tick feeding. Most of them are still uncharacterized, especially those involved in the formation of tick cement. Tick salivary protein PA107 is a putative cement protein, which is transcribed in salivary glands during the initial phase of tick feeding.

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Objectives: To describe changes in the volume and types of emergency medical services (EMS) calls for children during the COVID-19 pandemic and after availability of the COVID-19 vaccine ("reopening period").

Methods: A retrospective cross-sectional study of EMS 9-1-1 responses to children under 18 years for all causes over a 4-year period (2019-2022) reported in the National Emergency Medical Services Information System (NEMSIS) dataset. Data was stratified into three periods, Pre-pandemic, Pandemic and Reopening.

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Controlled synthesis of faceted nanoparticles on surfaces without explicit use of ligands has gained attention due to their promising applications in electrocatalysis and chemical sensing. Electrodeposition is a desirable method; however, precise control over their size, spatial distribution, and morphology requires extensive optimization. Here, we report the spatially resolved synthesis of shape-controlled Pt nanoparticles and fast screening of synthesis conditions in scanning electrochemical cell microscopy (SECCM) with pulse potentials.

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Terminal metal-phosphorus (M-P) complexes are of significant contemporary interest as potential platforms for P-atom transfer (PAT) chemistry. Decarbonylation of metal-phosphaethynolate (M-PCO) complexes has emerged as a general synthetic approach to terminal M-P complexes. M-P complexes that are stabilized by strong M-P multiple bonds are kinetically persistent and isolable.

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Purpose: To present a modified evisceration technique with a full-thickness horizontal sclerotomy and assess post-operative motility and long-term outcomes.

Methods: This is a retrospective chart review of patients who underwent evisceration with a single surgeon (TJM). The standard initial steps of evisceration were performed.

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Background: While detection of circulating tumor DNA (ctDNA) weeks after surgery is linked to recurrence for other solid tumors, the optimal time point for ctDNA assessment as a prognostic biomarker following chemoradiation for anal cancer is undefined.

Methods: Patients with stages I-III anal cancer treated with chemoradiation between 12/2020-5/2024 were evaluated for HPV ctDNA status at baseline, at the end of chemoradiation, and during surveillance using a droplet digital HPV ctDNA PCR assay targeting HPV E6 and E7 oncogenes for 13 oncogenic HPV types. Median recurrence-free survival (RFS) according to HPV ctDNA status was estimated via Kaplan-Meier and compared using a log-rank test.

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The contribution of sex hormones to cardiovascular disease, including arterial stiffness, is established; however, the role of sex chromosome interaction with sex hormones, particularly in women, is lagging. Arterial structural stiffness depends on the intrinsic properties and transmural wall geometry that comprise a network of cells and extracellular matrix (ECM) proteins expressed in a sex-dependent manner. In this study, we used four-core genotype (FCG) mice to determine the relative contribution of sex hormones versus sex chromosomes or their interaction with arterial structural stiffness.

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Case 337.

Radiology

January 2025

From the Rush University Medical Center, 1620 W Harrison St, Chicago, IL 60612 (B.H.M., F.G., H.W.A.A., S.G.D., C.D.D., M.A.M.); and University of Texas Health Science Center, Houston, Tex (X.R.Z.).

A 38-year-old previously healthy male patient presented with left-sided facial pain over the prior 5 weeks. He first noticed the pain while washing and applying pressure to his face. The pain was described as shock-like, sharp and shooting, and radiating along the left cheek and temple.

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Background: Larsucosterol is a DNA methyltransferase inhibitor in development for alcohol-associated hepatitis (AH), a disease for which there is no approved therapy.

Methods: In this phase 2b trial, patients with severe AH were randomly assigned 1:1:1 to receive 30 mg or 90 mg of larsucosterol or placebo; a second dose was administered after 72 hours if the patient remained hospitalized. All patients received supportive care as determined by investigators.

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AbstractBecause symptoms of cardiopulmonary disease often occur with exertion, cardiopulmonary exercise testing (CPET) has a unique role in the assessment of patient symptoms, disease severity, prognosis, and response to therapy. In addition to the evaluation of cardiovascular and pulmonary physiology, CPET provides an assessment of the interaction of the cardiovascular and pulmonary systems with the musculoskeletal, nervous, and hematological systems. In this article, we review key CPET variables, protocols, and clinical indications.

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