47,936 results match your criteria: "J.R.; and University of Barcelona[Affiliation]"

Objective: To develop a domain-specific large language model (LLM) for LI-RADS v2018 categorization of hepatic observations based on free-text descriptions extracted from MRI reports.

Material And Methods: This retrospective study included 291 small liver observations, divided into training (n = 141), validation (n = 30), and test (n = 120) datasets. Of these, 120 were fictitious, and 171 were extracted from 175 MRI reports from a single institution.

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Genomic profiling often fails to predict therapeutic outcomes in cancer. This failure is, in part, due to a myriad of genetic alterations and the plasticity of cancer signaling networks. Functional profiling, which ascertains signaling dynamics, is an alternative method to anticipate drug responses.

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[18F]-Fluorodeoxyglucose Uptake as a Marker of Residual Anaplastic and Poorly Differentiated Thyroid Carcinoma Following BRAF-Targeted Therapy.

AJNR Am J Neuroradiol

November 2024

From the Department of Neuroradiology / Head and Neck Imaging (S.A.D., K.O.L., R.D., A.M.K.), Department of Head and Neck Surgery (J.R.W., X.Z., A.M., M.E.Z.), Department of Pathology (S.M.H.), and Department of Endocrine Neoplasia and Hormonal Disorders (M.E.C., N.L.B., R.D., P.I.), The University of Texas MD Anderson Cancer Center, Houston, TX, USA.

Background And Purpose: Neoadjuvant BRAF-directed therapy and immunotherapy followed by surgery improves survival in patients with BRAF-mutant anaplastic thyroid carcinoma (ATC), more so in those who have complete ATC pathologic response. This study assesses the ability of FDG-PET to non-invasively detect residual high-risk pathologies including ATC and poorly differentiated thyroid carcinoma (PDTC) in the preoperative setting.

Materials And Methods: This retrospective, single-center study included consecutive BRAF-mutant ATC patients treated with at least 30 days of neoadjuvant BRAF-directed therapy and who underwent FDG-PET/CT within 30 days prior to surgery.

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Article Synopsis
  • - The study aimed to analyze how the density of bone foam affects the amount of subsidence caused by expandable interbody cages during spinal procedures.
  • - Results indicated that higher bone foam densities led to reduced subsidence depths; for example, at a force of 150 N, the mean subsidence was 2.0 mm for 5 PCF and only 1.1 mm for both 15 and 20 PCF.
  • - The findings suggest that surgeons should consider bone quality when using expandable interbody cages, as the relationship between bone density and subsidence can influence the effectiveness of the procedure.
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Cerebral Blood Flow Dynamics in Neurogenic Orthostatic Hypotension: A Systematic Review and Meta-Analysis.

Hypertension

January 2025

Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Alberta, Canada (J.R.B., S.I.R., A.P., S.R.R.).

Background: Neurogenic orthostatic hypotension (nOH) causes pathological falls in standing blood pressure that may or may not be symptomatic. nOH also raises the risk of poor neurological outcomes irrespective of symptom presence, possibly reflecting subclinical cerebral hypoperfusion. Dynamic changes in cerebral blood flow velocity (CBFv) help infer how blood pressure fluctuations influence CBFv and cerebral autoregulation.

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A Latent Cardiomyocyte Regeneration Potential in Human Heart Disease.

Circulation

January 2025

Centers for Regenerative Therapies Dresden (W.D., F.R., P.H., A.H., L.P., I.S., O.B.), Technische Universität Dresden, Germany.

Background: Cardiomyocytes in the adult human heart show a regenerative capacity, with an annual renewal rate of ≈0.5%. Whether this regenerative capacity of human cardiomyocytes is employed in heart failure has been controversial.

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Background: The EF-hand Ca sensor protein S100A1 has been identified as a molecular regulator and enhancer of cardiac performance. The ability of S100A1 to recognize and modulate the activity of targets such as SERCA2a (sarcoplasmic reticulum Ca ATPase) and RyR2 (ryanodine receptor 2) in cardiomyocytes has mostly been ascribed to its hydrophobic C-terminal α-helix (residues 75-94). We hypothesized that a synthetic peptide consisting of residues 75 through 94 of S100A1 and an N-terminal solubilization tag (S100A1ct) could mimic the performance-enhancing effects of S100A1 and may be suitable as a peptide therapeutic to improve the function of diseased hearts.

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Background: Orthopaedic surgery regularly employs opioids for postoperative pain management. Multimodal pain protocols have been shown to reduce opioid prescriptions in orthopaedic surgery.

Purpose: To analyze the impact of a division-level multimodal pain protocol for orthopaedic sports medicine surgery on opioid prescription reduction and pain level postoperatively.

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Assessment of In-Office Tympanostomy Tube Insertion Tolerability in Children Under 2 Years.

Ear Nose Throat J

November 2024

Otolaryngology Head and Neck Surgery, St. Cloud ENT, St. Cloud, MN, USA.

In-office tympanostomy tube insertion (TTI) is becoming more available in the practice of pediatric otolaryngology. This study evaluated the tolerability of this procedure in young children. Four methods were used to assess tolerability.

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A cell atlas foundation model for scalable search of similar human cells.

Nature

November 2024

Research and Early Development, Genentech, San Francisco, CA, USA.

Single-cell RNA sequencing has profiled hundreds of millions of human cells across organs, diseases, development and perturbations to date. Mining these growing atlases could reveal cell-disease associations, identify cell states in unexpected tissue contexts and relate in vivo biology to in vitro models. These require a common measure of cell similarity across the body and an efficient way to search.

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Molecular adaptation to neoadjuvant immunotherapy in triple-negative breast cancer.

Cell Rep Med

November 2024

German Breast Group (GBG) Forschungs GmbH, Neu-Isenburg, Germany. Electronic address:

Therapy-induced molecular adaptation of triple-negative breast cancer is crucial for immunotherapy response and resistance. We analyze tumor biopsies from three different time points in the randomized neoadjuvant GeparNuevo trial (NCT02685059), evaluating the combination of durvalumab with chemotherapy, for longitudinal alterations of gene expression. Durvalumab induces an activation of immune and stromal gene expression as well as a reduction of proliferation-related gene expression.

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Long-Term Cognitive, Functional, and Patient-Reported Outcomes in Patients With Anti-NMDAR Encephalitis.

Neurology

December 2024

From the Department of Neurology (J.B., C.J.R., I.K., A.E.M.B., Y.S.C., C.N.K., J.C.P.V., A.A.G.T., B.T., L.P.K., M.A.A.M.d.B., M.R.M., J.K., R.W.v.S., J.M.d.V., R.F.N., P.A.E.S.S., M.J.T.), Erasmus University Medical Center, Rotterdam; Department of Neurology (S.H.C.O.), Amsterdam University Medical Center; Department of Immunology (S.V.), Erasmus University Medical Center, Rotterdam; Laboratory of Medical Microbiology and Immunology Microvida (M.W.J.S.), Tilburg; and Department of Neurology & Alzheimer Center (E.v.d.B.), Erasmus University Medical Center, Rotterdam, the Netherlands.

Background And Objectives: Anti-NMDA receptor (anti-NMDAR) encephalitis generally manifests in young adults. Although 80%-90% returns to independence, the majority experience persistent cognitive and psychosocial difficulties. Studies have demonstrated that cognitive recovery may continue for years; the temporal trajectory is largely unknown, as are factors influencing cognitive/psychosocial recovery.

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We report the discovery of an imidazopyridine series of IRAK1/4/pan-FLT3 kinase inhibitors. Optimization of this series has produced compound which displays potent and selective inhibition of IRAK1, IRAK4, FLT3, and all mutant forms of FLT3, as well as good in vitro ADME and pharmacokinetic properties. In a mouse xenograft model of AML, produces survival prolongation equal to that of Gilteritinib, the leading marketed FLT3 inhibitor currently used to treat AML.

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Reply to 'Experimental measurement of assembly indices are required to determine the threshold for life'.

J R Soc Interface

November 2024

Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA.

We clarify misunderstandings of Walker et al. (Walker 2024 21, 20240367 (doi:10.1098/rsif.

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Assembly theory (AT) aims to distinguish living from non-living systems by explaining and quantifying selection and evolution. The theory proposes that the degree of assembly depends on the number of complex objects, with complexity measured using a combination of the object's assembly index (AI) and its abundance. We previously provided experimental evidence supporting AT's predictive power, finding that abiotic systems do not randomly produce organic molecules with an AI greater than approximately 15 in detectable amounts.

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Previous work has failed to fit classic SEIR epidemic models satisfactorily to the prevalence data of the famous English boarding school 1978 influenza A/H1N1 outbreak during the children's pandemic. It is still an open question whether a biologically plausible model can fit the prevalence time series and the attack rate correctly. To construct the final model, we first used an intentionally very flexible and overfitted discrete-time epidemiologic model to learn the epidemiological features from the data.

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Human genetics identify convergent signals in mitochondrial LACTB-mediated lipid metabolism in cardiovascular-kidney-metabolic syndrome.

Cell Metab

January 2025

Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Penn/CHOP Kidney Innovation Center, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Genetics, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address:

Article Synopsis
  • Researchers discovered that the beta-lactamase gene (LACTB) is linked to kidney dysfunction and high lipid levels, which are vital aspects of cardiovascular-kidney-metabolic syndrome.
  • In experiments, mice lacking LACTB showed symptoms of impaired glucose tolerance and higher lipid levels, while overexpressing LACTB in specific kidney tubules provided protection against kidney damage.
  • The study reveals that LACTB acts as a mitochondrial protease that activates another gene, PLA2G6, which is important for regulating lipid metabolism and may serve as a target for treating metabolic disorders related to kidney health.
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Quality of Life in Subcutaneous or Transvenous Implantable Cardioverter-Defibrillator Patients: A Secondary Analysis of the PRAETORIAN Trial.

Circ Cardiovasc Qual Outcomes

November 2024

Department of Cardiology, Amsterdam Cardiovascular Sciences Heart Failure and Arrhythmias, Amsterdam University Medical Centers Location University of Amsterdam, Heart Center, the Netherlands (R.E.K., J.A.d.V., L.V.A.B., T.F.B., S.P., A.-F.B.E.Q., L.S., W.v.d.S., A.d.W., J.R.d.G., K.M.K., J.G.P.T., A.A.M.W., L.R.A.O.N.).

Article Synopsis
  • The S-ICD was created to eliminate lead-related issues found in the TV-ICD, as it is an external device that sits under the skin rather than using leads inside the body.
  • This analysis comes from the PRAETORIAN trial, where patients were randomly assigned to either S-ICD or TV-ICD and assessed for quality of life through various questionnaires at different stages.
  • Results showed no significant differences in physical and mental well-being between the groups, but patients who experienced a shock recently reported lower social functioning and emotional health compared to those who did not.
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Health Economic Evaluation of Antimicrobial Stewardship, Procalcitonin Testing, and Rapid Blood Culture Identification in Sepsis Care: A 90-Day Model-Based, Cost-Utility Analysis.

Pharmacoecon Open

January 2025

Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta and Alberta Health Services, 2-124 Clinical Sciences Building, 8440 112 Street NW, Edmonton, Alberta, T6G 2B7, Canada.

Objective: We evaluated the cost-effectiveness of a bundled intervention including an antimicrobial stewardship program (ASP), procalcitonin (PCT) testing, and rapid blood culture identification (BCID), compared with pre-implementation standard care in critically ill adult patients with sepsis.

Methods: We conducted a decision tree model-based cost-effectiveness analysis alongside a previously published pre- and post-implementation quality improvement study. We adopted a public Canadian healthcare payer's perspective.

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Doctors working in teams.

J R Soc Med

December 2024

Centre for Affective Disorders, IoPPN, Kings College, London SE5 8AF, UK.

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How to deal with bullying, harassment and discrimination in the workplace?

J R Soc Med

November 2024

Mental Health & Cultural Diversity, Centre for Affective Disorders, IoPPN, Kings College London, London SE5 8AF, UK.

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Interstitial Lung Abnormalities on Unselected Abdominal and Thoracoabdominal CT Scans in 21 118 Patients.

Radiology

November 2024

From the Scienze Radiologiche, Department of Medicine and Surgery, University of Parma, Parma, Italy (N.S., G.M., V.R.P., S.E.G., E.B., F.S., C.M., F.M., R.E.L., M.S.); Department of Medicine, University of British Columbia and Center for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, Brigham and Women's Hospital, Boston, Mass (H.H.); National Heart and Lung Institute, Imperial College London, London, England (S.L.F.W.); and University Hospital of Parma, Parma, Italy (E.I.).

Article Synopsis
  • Interstitial lung abnormalities (ILAs) are incidental findings on CT scans that may indicate early stages of interstitial lung disease, but data on their prevalence in routine clinical practice is limited.
  • A study reviewed CT scans from patients aged 50 and older at a tertiary hospital and found that ILAs were present in 1.7% of scanned patients, with a significant number being underreported in original clinical reports.
  • The presence of fibrotic ILAs significantly increased the risk of respiratory-related mortality, highlighting the importance of recognizing and reporting these abnormalities in clinical settings.
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