424 results match your criteria: "Perelman School of Medicine-University of Pennsylvania[Affiliation]"
EJHaem
May 2023
Pediatric Hematology/Oncology Weill Cornell Medicine New York New York USA.
Corticosteroids (CSs) are standard first-line therapy for immune thrombocytopenia (ITP). Prolonged exposure is associated with substantial toxicity; thus guidelines recommend avoidance of prolonged CS treatment and early use of second-line therapies. However, real-world evidence on ITP treatment patterns remains limited.
View Article and Find Full Text PDFArXiv
May 2023
Department of Radiology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA 19103 USA. He is now with Memorial Sloan Kettering Cancer Center, New York, NY, 10065 USA.
X-ray phase-contrast imaging offers enhanced sensitivity for weakly-attenuating materials, such as breast and brain tissue, but has yet to be widely implemented clinically due to high coherence requirements and expensive x-ray optics. Speckle-based phase contrast imaging has been proposed as an affordable and simple alternative; however, obtaining high-quality phase-contrast images requires accurate tracking of sample-induced speckle pattern modulations. This study introduced a convolutional neural network to accurately retrieve sub-pixel displacement fields from pairs of reference (i.
View Article and Find Full Text PDFInt J Radiat Oncol Biol Phys
November 2023
Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address:
ACS Nano
May 2023
Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.
J Am Heart Assoc
May 2023
Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics and Precision Medicine, College of Pharmacy University of Florida Gainesville FL USA.
Background Anthracyclines remain a key treatment for many malignancies but can increase the risk of heart failure or cardiomyopathy. Specific guidelines recommend echocardiography and serum cardiac biomarkers such as BNP (B-type natriuretic peptide) or NT-proBNP (N-terminal proBNP) evaluation before and 6 to 12 months after treatment. Our objective was to evaluate associations between racial and ethnic groups in cardiac surveillance of survivors of cancer after exposure to anthracyclines.
View Article and Find Full Text PDFJ Am Heart Assoc
April 2023
Division of Cardiac Critical Care Medicine, The Children's Hospital of Philadelphia and Department of Anesthesiology and Critical Care Perelman School of Medicine at the University of Pennsylvania Philadelphia PA.
Background The impact of home monitoring on unanticipated interstage readmissions in infants with hypoplastic left heart syndrome has not been previously studied. We sought to examine the association of our institution's Infant Single Ventricle Management and Monitoring Program (ISVMP) with readmission frequency, cumulative readmission days, and readmission illness severity and to identify patient-level risk factors for readmission. Methods and Results We performed a retrospective single-center cohort study comparing infants with hypoplastic left heart syndrome enrolled in ISVMP (December 2010-December 2019) to historical controls (January 2007-November 2010).
View Article and Find Full Text PDFJMIR Infodemiology
February 2023
Department of Emergency Medicine Perelman School of Medicine University of Pennsylvania Philadelphia, PA United States.
Background: Burnout and the mental health burden of the COVID-19 pandemic have disproportionately impacted health care workers. The links between state policies, federal regulations, COVID-19 case counts, strains on health care systems, and the mental health of health care workers continue to evolve. The language used by state and federal legislators in public-facing venues such as social media is important, as it impacts public opinion and behavior, and it also reflects current policy-leader opinions and planned legislation.
View Article and Find Full Text PDFClin Case Rep
March 2023
Division of Infectious Diseases, Department of Medicine University of Miami Miller School of Medicine Miami Florida USA.
Histoplasmosis is a neglected mycosis with high mortality in immunocompromised individuals. The diagnosis can be delayed due to nonspecific clinical manifestations and similar morphology with other organisms. A high index of suspicion is required.
View Article and Find Full Text PDFACS Appl Bio Mater
February 2024
Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.
Computer-aided molecular design and protein engineering emerge as promising and active subjects in bioengineering and biotechnological applications. On one hand, due to the advancing computing power in the past decade, modeling toolkits and force fields have been put to use for accurate multiscale modeling of biomolecules including lipid, protein, carbohydrate, and nucleic acids. On the other hand, machine learning emerges as a revolutionary data analysis tool that promises to leverage physicochemical properties and structural information obtained from modeling in order to build quantitative protein structure-function relationships.
View Article and Find Full Text PDFAlzheimers Dement (Amst)
February 2023
Background: Gender and biological sex are social and structural determinants of health and umbrella concepts encompassing many distinct attributes. This systematic review summarizes measures of gender and biological sex published in the biomedical literature. The goal was to identify measures that may be useful to researchers studying Alzheimer's disease and Alzheimer's disease related dementias (AD/ADRD).
View Article and Find Full Text PDFJ Am Heart Assoc
March 2023
Penn Cardiovascular Outcomes, Quality, and Evaluative Research Center University of Pennsylvania Philadelphia PA.
Background Inequitable access to high-technology therapeutics may perpetuate inequities in care. We examined the characteristics of US hospitals that did and did not establish left atrial appendage occlusion (LAAO) programs, the patient populations those hospitals served, and the associations between zip code-level racial, ethnic, and socioeconomic composition and rates of LAAO among Medicare beneficiaries living within large metropolitan areas with LAAO programs. Methods and Results We conducted cross-sectional analyses of Medicare fee-for-service claims for beneficiaries aged 66 years or older between 2016 and 2019.
View Article and Find Full Text PDFJ Am Heart Assoc
February 2023
Case Cardiovascular Research Institute, Case Western Reserve University, and Harrington Heart and Vascular Institute University Hospitals Cleveland Medical Center Cleveland OH.
Background Proper function of endothelial cells is critical for vascular integrity and organismal survival. Studies over the past 2 decades have identified 2 members of the KLF (Krüppel-like factor) family of proteins, KLF2 and KLF4, as nodal regulators of endothelial function. Strikingly, inducible postnatal deletion of both KLF2 and KLF4 resulted in widespread vascular leak, coagulopathy, and rapid death.
View Article and Find Full Text PDFbioRxiv
January 2023
Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America; Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, Colorado, United States of America; Center for Health AI, University of Colorado School of Medicine, Aurora, Colorado, United States of America.
Hetnets, short for "heterogeneous networks", contain multiple node and relationship types and offer a way to encode biomedical knowledge. One such example, Hetionet connects 11 types of nodes - including genes, diseases, drugs, pathways, and anatomical structures - with over 2 million edges of 24 types. Previous work has demonstrated that supervised machine learning methods applied to such networks can identify drug repurposing opportunities.
View Article and Find Full Text PDFTransl Vis Sci Technol
January 2023
Centre for Applied Vision Research, School of Health Sciences, City, University of London, London, UK.
Purpose: Blue cone monochromacy (BCM) is an X-linked retinopathy due to mutations in the OPN1LW/OPN1MW gene cluster. Symptoms include reduced visual acuity and disturbed color vision. We studied BCM color vision to determine outcome measures for future clinical trials.
View Article and Find Full Text PDFThorax
June 2023
Division of Pulmonary and Critical Care, Weill Cornell Medical College, New York, New York, USA.
Bacteriophage (phage) therapy in combination with antibiotic treatment serves as a potential strategy to overcome the continued rise in antibiotic resistance across bacterial pathogens. Understanding the impacts of evolutionary and ecological processes to the phage-antibiotic-resistance dynamic could advance the development of such combinatorial therapy. We tested whether the acquisition of mutations conferring phage resistance may have antagonistically pleiotropic consequences for antibiotic resistance.
View Article and Find Full Text PDFJ Am Coll Emerg Physicians Open
December 2022
Objective: The objective of this study was to investigate the differences in patient-reported experiences related to emergency department (ED) care using a post-discharge text messaging survey.
Methods: This was a prospective cohort study of patients discharged from the ED using an automated text messaging platform to assess patient experience and impact of race on ED care. The study was conducted for 7 weeks between August 6 and September 24, 2021.
Introduction: Literacy can be a better measure of quality of education. Its association with brain health in midlife has not been thoroughly investigated.
Methods: We studied, cross-sectionally, 616 middle-aged adults (mean age of 55.
JMIR Dermatol
December 2022
Department of Dermatology Jefferson Health Northeast Philadelphia, PA United States.
Cutaneous reactions have been commonly associated with the Moderna messenger RNA (mRNA) COVID-19 vaccine. Among the reported cutaneous side effects, there have not been any associations reported yet regarding keratoacanthoma development after COVID-19 mRNA vaccination. We report a novel case of an 86-year-old man who experienced an eruption of multiple keratoacanthomas 2 weeks after inoculation with the Moderna mRNA-1273 vaccine that resolved following treatment with intralesional 5-fluorouracil.
View Article and Find Full Text PDFBackground: Increasing evidence suggests that targeting self-regulatory processes may improve obesity treatment outcomes. Incorporating gamification principles in inhibitory control training may promote sustained training adherence and resulting benefits. This pilot study evaluated the preliminary efficacy of supplementing an evidence-based weight management program (WW) with sustained gamified inhibitory control training (PolyRules!) on change in Body Mass Index (BMI) among adults with overweight/obesity.
View Article and Find Full Text PDFWorld J Otorhinolaryngol Head Neck Surg
December 2022
Objective: The reconstruction of large scalp defects poses both functional and cosmetic challenges. While free tissue transfer remains the standard for defects larger than 30 cm, prolonged anesthesia and postoperative complications remain significant limitations. The purpose of this study is to evaluate the use of O-Z flaps for the reconstruction of large scalp defects and to describe the techniques employed.
View Article and Find Full Text PDFDev Cell
November 2022
Department of Biomedical Sciences, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, PA 19104, USA; Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA. Electronic address:
The mechanisms leading to adrenal cortex development and steroid synthesis in humans remain poorly understood due to the paucity of model systems. Herein, we recapitulate human fetal adrenal cortex specification processes through stepwise induction of human-induced pluripotent stem cells through posterior intermediate mesoderm-like and adrenocortical progenitor-like states to ultimately generate fetal zone adrenal-cortex-like cells (FZLCs), as evidenced by histomorphological, ultrastructural, and transcriptome features and adrenocorticotropic hormone (ACTH)-independent Δ5 steroid biosynthesis. Furthermore, FZLC generation is promoted by SHH and inhibited by NOTCH, ACTIVIN, and WNT signaling, and steroid synthesis is amplified by ACTH/PKA signaling and blocked by inhibitors of Δ5 steroid synthesis enzymes.
View Article and Find Full Text PDFIndian J Cancer
November 2022
Department of Psychiatry, Perelman School of Medicine University of Pennsylvania, USA.
In India, 14.6% of adolescents are currently using tobacco in any form and tobacco control is a major public health challenge. The objective of this systematic review is to analyze all the existing literature and evaluate the effectiveness of school-based tobacco use prevention programs for adolescents in India.
View Article and Find Full Text PDFJ Am Heart Assoc
December 2022
The Center for Applied Genomics, Children's Hospital of Philadelphia Philadelphia PA.
Nonischemic dilated cardiomyopathy is a common form of heart muscle disease in which genetic factors play a critical etiological role. In this regard, both rare disease-causing mutations and common disease-susceptible variants, in the Bcl-2-associated athanogene 3 () gene have been reported, highlighting the critical role of in cardiomyocytes and in the development of dilated cardiomyopathy. The phenotypic effects of the mutations help investigators understand the structure and function of the gene.
View Article and Find Full Text PDFMol Genet Metab
December 2022
Department of Neurology, Children's Hospital of Philadelphia, Philadelphia, USA; Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA. Electronic address:
Aicardi Goutières Syndrome (AGS) is an autoinflammatory disorder resulting in sustained interferon activation through defects in nucleic acid modification and sensing pathways. Thus, mRNA-based vaccination used against SARS-CoV-2, raise disease-specific safety concerns. To assess interferon signaling, we tested mRNA SARS-CoV-2 vaccines in AGS whole blood samples.
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