52,681 results match your criteria: "Perelman School of Medicine at the University of Pennsylvania; jshorter@mail.med.upenn.edu.[Affiliation]"

Background And Objectives: Since the initial description of related hemiplegic migraine (HM), the phenotypic spectrum has expanded from mild episodes in neurotypical individuals to potentially life-threatening events frequently seen in individuals with developmental and epileptic encephalopathies. However, the overall longitudinal course throughout childhood remains unknown.

Methods: We analyzed HM and seizure history from electronic medical records in individuals with -related HM, delineating frequency and severity of events in monthly increments through a standardized approach.

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Achilles Tendon Surgical Repair Partially Restores Early Plantar Flexor Structure and Function in a Rat Model.

J Orthop Res

January 2025

Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Achilles tendon ruptures significantly impair long-term patient function, with two-thirds of patients experiencing persistent functional deficits. Although nonsurgical treatment has gained popularity due to its perceived lower risk of complications, the specific effects of this approach on tendon healing, muscle function, and overall performance remain poorly understood. Directly comparing surgical and nonsurgical treatment options in a clinical population is challenging given the diverse nature of the patient population.

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Mesenchymal stem cell therapy as a game-changer in liver diseases: review of current clinical trials.

Stem Cell Res Ther

January 2025

School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, 10F., Teaching & Research Building, Shuang-Ho Campus, No. 301, Yuantong Rd., Zhonghe Dist., Taipei, 235, Taiwan.

Chronic liver diseases, including cirrhosis and liver failure, remain formidable challenges due to their complex progression and limited therapeutic options. Mesenchymal stem cell (MSC) therapy has emerged as a game-changing approach, leveraging its potent immunomodulatory, anti-fibrotic, and regenerative capabilities, along with the ability to transdifferentiate into hepatocytes. This review delves into the latest advances in MSC-based treatments for chronic and end-stage liver diseases, as highlighted in current clinical trials.

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Weight change and cardiovascular disease incidence in breast cancer survivors: a nationwide cohort study.

Breast Cancer Res Treat

January 2025

Department of Family Medicine and Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Background: Breast cancer survivors (BCS) face a higher risk of cardiovascular disease (CVD) due to treatment-related cardiotoxicity and pre-existing conditions. We investigated how post-diagnosis weight changes and obesity impact CVD risk in this population.

Method: Using the Korean National Health Insurance Service database (2010-2019), BCS without previous history of CVD were enrolled.

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Fault-Tolerance Study on a Positive-Charged Cleft in 18 rRNA Methyltransferase DIMT1.

Biochemistry

January 2025

Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.

Dimethyladenosine transferase 1 (DIMT1) is an RNA -dimethyladenosine (mA) methyltransferase. DIMT1's role in pre-rRNA processing and ribosome biogenesis is critical for cell proliferation. Here, we investigated the minimal number of residues in a positively charged cleft on DIMT1 required for cell proliferation.

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On the Need for Equipoise and Placebos: Well-Executed Studies Answering the Wrong Questions.

Gastroenterology

January 2025

Division of Gastroenterology and Hepatology, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania. Electronic address:

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Mucopolysaccharidosis type I (MPS I) is an inherited lysosomal storage disorder leading to deleterious brain effects. While animal models suggested that MPS I severely affects white matter (WM), whole-brain diffusion tensor imaging (DTI) analysis was not performed due to MPS-related morphological abnormalities. 3T DTI data from 28 severe (MPS IH, treated with hematopoietic stem cell transplantation-HSCT), 16 attenuated MPS I patients (MPS IA) enrolled under the study protocol NCT01870375, and 27 healthy controls (HC) were analyzed using the free-water correction (FWC) method to resolve macrostructural partial volume effects and unravel differences in DTI metrics accounting for microstructural abnormalities.

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Objectives: Recent literature has provided additional data to further individualize treatment recommendations on regional nodal irradiation (RNI) patient selection and delivery techniques, but controversies surrounding optimal RNI utilization remain, including radiation technique, modality selection, and internal mammary lymph node (IMN) inclusion. The American Radium Society (ARS) Breast Appropriate Use Criteria (AUC) Committee performed a systematic review and developed a consensus guideline to summarize recent data and provide evidence-based recommendations.

Methods: A multidisciplinary panel comprised of 15 members representing radiation oncologists, medical oncologists, and surgical oncologists specializing in the treatment of breast cancer conducted an analysis of the medical literature from January 1, 2011 to April 1, 2024.

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Background: The increasing use of social media to share lived and living experiences of substance use presents a unique opportunity to obtain information on side effects, use patterns, and opinions on novel psychoactive substances. However, due to the large volume of data, obtaining useful insights through natural language processing technologies such as large language models is challenging.

Objective: This paper aims to develop a retrieval-augmented generation (RAG) architecture for medical question answering pertaining to clinicians' queries on emerging issues associated with health-related topics, using user-generated medical information on social media.

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Objective: Benzodiazepines, particularly lorazepam, are good options for acute catatonia treatment. Published catatonia literature on benzodiazepine maintenance treatment and benzodiazepine tolerance is limited.

Methods: This is a chart review covering 30 years of clinical experience in the state of Kentucky, (United States of America), where there was no easy access to electroconvulsive therapy.

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Background: Cognitive impairment is common at all stages of Parkinson's disease (PD), but there is no consensus on which neuropsychological tests to use or how to interpret cognitive battery results. A cognitive summary score (CSS) combines the richness of a neuropsychological battery with the simplicity of a single score.

Objective: The objective of this study was to determine whether a CSS created using robust norming can detect early cognitive deficits in de novo, untreated PD.

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The Plight of "Dual Noneligible" People in the United States.

N Engl J Med

January 2025

From Brigham and Women's Hospital (D.E.V., J.F.F.) and the Department of Health Policy and Management, Harvard T.H. Chan School of Public Health (J.F.F.) - both in Boston; and the Department of General Internal Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia (E.T.R.).

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Mini-clusters of postadenovirus VITT.

Res Pract Thromb Haemost

January 2025

Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada.

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Evaluating racial and ethnic disparities in antibiotic treatment for pneumonia patients in a major academic health system.

Antimicrob Steward Healthc Epidemiol

December 2024

Division of Infectious Diseases, Department of Medicine, School of Medicine, Emory University, Atlanta, GA, USA.

Objective: Examine the relationship between patients' race and prescriber antibiotic choice while accounting for differences in underlying illness and infection severity.

Design: Retrospective cohort analysis.

Setting: Acute care facilities within an academic healthcare system.

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Background: Difficulty discriminating bacterial versus viral etiologies of infection drives unwarranted antibacterial prescriptions and, therefore, antibacterial resistance.

Methods: Utilizing a rapid portable test that measures peripheral blood host gene expression to discriminate bacterial and viral etiologies of infection (the HR-B/V assay on Biomeme's polymerase chain reaction-based Franklin platform), we tested 3 cohorts of subjects with suspected infection: the HR-B/V training cohort, the HR-B/V technical correlation cohort, and a coronavirus disease 2019 cohort.

Results: The Biomeme HR-B/V test showed very good performance at discriminating bacterial and viral infections, with a bacterial model accuracy of 84.

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Introduction: The predictive and prognostic implications of different mutation (m) subtypes in metastatic NSCLC have not been clearly defined. We used a nationwide observational database to investigate whether m subtypes differ in their association with survival in metastatic NSCLC treated with immune checkpoint inhibitor (ICI)-based therapy, across programmed death-ligand 1 (PD-L1) levels.

Methods: Patients with advanced nonsquamous NSCLC who initiated first-line ICI-based therapy from 2016 to 2021 and had known PD-L1 expression and comprehensive genomic profiling including , , , and were included.

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Introduction: Osimertinib is now a standard first-line (1L) therapy for EGFR-mutated (EGFRm) advanced NSCLC. We aimed to characterize patterns of therapy and longitudinal risk of brain and liver metastasis in a cohort of EGFRm NSCLC.

Methods: Patients with metastatic EGFRm NSCLC who received 1L systemic therapy at sites within the Academic Thoracic Medical Investigator's Consortium were included; demographic and clinical data including treatment patterns were described.

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Phenotypic and genetic relationships between white matter microstructure (i.e., fractional anisotropy [FA]) and peripheral inflammatory responses (i.

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Depth-corrected multi-factor dissection of chromatin accessibility for scATAC-seq data with PACS.

Nat Commun

January 2025

Graduate Group in Genomics and Computational Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Single cell ATAC-seq (scATAC-seq) experimental designs have become increasingly complex, with multiple factors that might affect chromatin accessibility, including genotype, cell type, tissue of origin, sample location, batch, etc., whose compound effects are difficult to test by existing methods. In addition, current scATAC-seq data present statistical difficulties due to their sparsity and variations in individual sequence capture.

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A Bundled, Practice-Based Intervention to Increase HPV Vaccination.

Pediatrics

January 2025

Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.

Background And Objectives: Human papillomavirus (HPV) vaccination rates are suboptimal, and missed vaccination opportunities are common. We hypothesized that a bundled intervention improves missed HPV vaccination opportunities.

Methods: We used a pre-post design to assess differences in HPV vaccine missed opportunities (visits when vaccine-eligible adolescents are not vaccinated).

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Sleep Circuits Welcome the Cortex.

Sleep

January 2025

Department of Neuroscience, Perelman School of Medicine, Chronobiology and Sleep Institute, University of Pennsylvania, Philadelphia, PA 19104, USA.

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