2,104 results match your criteria: "The George Washington University School of Medicine and Health Sciences.[Affiliation]"

Introduction: Contamination of cocoa containing products, such as dark chocolate, with heavy metals including lead, cadmium and arsenic has been reported in the US. However, a formal exploration into the significance of this contamination, nor multi-year trends in the degree or scope remain unresolved.

Methods: From 2014 to 2022, 72 consumer cocoa-containing products were purchased and analyzed for heavy metal contamination with lead (Pb), cadmium (Cd), and arsenic (As) in 4 distinct cohorts (2014, 2016, 2019, 2022).

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Frailty is a significant predictor of a range of adverse outcomes in surgical patients, including increased mechanical ventilation time, longer hospital stays, unplanned readmissions, stroke, delirium, and death. However, accessible tools for screening in clinical settings are limited. Computed tomography of the psoas muscle is the current standard imaging device for measuring frailty, but it is expensive, time-consuming, and exposes the patient to ionizing radiation.

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Dynamic changes in protein glycosylation impact human health and disease progression. However, current resources that capture disease and phenotype information focus primarily on the macromolecules within the central dogma of molecular biology (DNA, RNA, proteins). To gain a better understanding of organisms, there is a need to capture the functional impact of glycans and glycosylation on biological processes.

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Optimal dosing regimen of caspofungin in adolescents with allogeneic haematopoietic stem cell transplantation.

J Antimicrob Chemother

October 2024

Department of Clinical Pharmacy, Institute of Clinical Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), NMPA Key Laboratory for Clinical Research and Evaluation of Innovative Drug, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.

Objectives: The optimal dosing regimen of caspofungin in adolescents undergoing allogeneic haematopoietic stem cell transplantation against Candida spp. is unknown. The study aimed to compare body surface area (BSA)-based and fixed dosing regimens through population pharmacokinetic (PPK) analysis and to optimize dosing regimens likely to achieve therapeutic exposures.

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Importance: Traumatic brain injury (TBI), seizures, and dementia increase with age. There is a gap in understanding the associations of TBI, seizures, and medications such as antiseizure and antipsychotics with the progression of cognitive impairment across racial and ethnic groups.

Objective: To investigate the association of TBI and seizures with the risk of cognitive impairment among cognitively normal older adults and the role of medications in moderating the association.

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Background: Inflammatory bowel disease (IBD) can have significant colonic involvement and carries a long-term risk of surgical resection. Chronic obstructive pulmonary disease (COPD) and IBD share multiple inflammatory pathways, suggesting a bidirectional relationship through proposed pulmonary-intestinal cross-talk. This study aimed to examine the association between COPD and 30-day outcomes following non-emergent colectomies for IBD.

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Objectives: Clinicians in the emergency department (ED) frequently encounter seriously ill patients at a time when advance directives may be pivotal in improved clinician decision-making. The objectives of this study were to identify the prevalence of advanced directives in ED patients, as well as patterns of advance care discussions between patients and providers. This study describes patients' perceptions and expectations of such serious illness discussions in an emergency care setting with the expectation of including patients as strategic members of the care team.

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Background/importance: Chronic pain affects many people globally, requiring alternative management strategies. Psilocybin is gaining attention for its potential in chronic pain management despite being classified as Schedule I.

Objective: This systematic review critically evaluates the evidence for psilocybin, a Schedule I substance, in the treatment of chronic pain.

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Article Synopsis
  • * Data was pooled from multiple clinical trials where patients received abrocitinib either alone or with topical treatments, measuring outcomes like itch severity and overall quality of life improvements.
  • * Results indicated that patients treated with abrocitinib saw significant reductions in itch and better overall skin assessments compared to those on placebo, with many achieving marked improvements by Week 12 of treatment.
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Introduction: Urinary tract infections (UTIs) are among the most prevalent infectious diseases. Females are more affected than males. The primary culprit is Escherichia coli.

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Background: Breast conservation therapy is a widely accepted approach in treating breast cancer, yet the average re-excision rates are approximately 25% despite surgical advancements. The Food and Drug Administration (FDA)-approved MarginProbe device uses radiofrequency spectroscopy for intraoperative margin assessment, potentially reducing re-excision rates. This study evaluated the effectiveness of MarginProbe in reducing re-excisions compared with standard of care (SOC).

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Article Synopsis
  • RSV bronchiolitis is a serious condition affecting infants worldwide, and the study investigates the role of microRNA (miRNA) in determining disease severity.
  • Researchers analyzed the upper airway miRNA and mRNA of 493 hospitalized infants to find specific miRNAs and mRNAs linked to more severe cases that required advanced respiratory support.
  • The findings identified 19 key miRNAs and numerous biological pathways associated with bronchiolitis severity, revealing a complex network of gene interactions that could inform future treatments.
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Tissue-resident macrophages contribute to the organogenesis of many tissues. Growth of the prostate is regulated by androgens during puberty, yet androgens are considered immune suppressive. In this study, we characterized the localization, androgen receptor expression and hematopoietic origin of prostate macrophages, and transiently ablated macrophages during postnatal prostate organogenesis in the mouse.

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Article Synopsis
  • The efficacy of upadacitinib has been evaluated through trials, specifically comparing different dosages against placebo and a head-to-head trial against dupilumab.
  • A population-adjusted indirect comparison was performed to estimate the potential performance of upadacitinib 15 mg using data from previous studies, focusing on multiple treatment outcomes for adult patients.
  • Results indicated that upadacitinib 30 mg had the highest response rates across various outcomes at weeks 4, 16, and 24, followed by upadacitinib 15 mg and then dupilumab, suggesting it may be the most effective treatment for moderate-to-severe atopic dermatitis.
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Article Synopsis
  • The article with DOI: 10.1016/j.eclinm.2023.101906 has been corrected to address previous inaccuracies.
  • The corrections involve updated data and findings that improve the overall validity of the research.
  • Readers are encouraged to refer to the corrected version for the most accurate information.
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Pediatric lymphoproliferative disorders associated with inborn errors of immunity.

Clin Immunol

September 2024

Centers for Cancer & Blood Disorders and Cancer & Immunology Research, Children's National Hospital, Washington, DC, United States of America; The George Washington University School of Medicine and Health Sciences, Washington, DC, United States of America.

Both non-malignant and malignant lymphoproliferative disorders (LPD) are commonly seen in patients with inborn errors of immunity (IEI), which may be the presenting manifestations or may develop during the IEI disease course. Here we review the clinical, histopathological, and molecular features of benign and malignant LPD associated with IEI and recognize the diagnostic challenges.

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Background: Whether patients with moderate left atrioventricular valve regurgitation (LAVVR) after surgical repair of complete atrioventricular septal defect (CAVSD) should be observed or undergo reoperation remains unclear.

Methods: Moderate LAVVR was diagnosed in 87 of 220 patients who underwent CAVSD repair: 47 during the initial hospital stay and 40 after a median of 7 months (interquartile range, 2-18 months) after the initial operation.

Results: Of these 87 patients who had moderate LAVVR, 15 died, for an overall mortality of 17%.

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Advancing DIEP Flap Monitoring with Optical Imaging Techniques: A Narrative Review.

Sensors (Basel)

July 2024

Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Hospital, Washington, DC 20010, USA.

Objectives: This review aims to explore recent advancements in optical imaging techniques for monitoring the viability of Deep Inferior Epigastric Perforator (DIEP) flap reconstruction. The objectives include highlighting the principles, applications, and clinical utility of optical imaging modalities such as near-infrared spectroscopy (NIRS), indocyanine green (ICG) fluorescence angiography, laser speckle contrast imaging (LSCI), hyperspectral imaging (HSI), dynamic infrared thermography (DIRT), and short-wave infrared thermography (SWIR) in assessing tissue perfusion and oxygenation. Additionally, this review aims to discuss the potential of these techniques in enhancing surgical outcomes by enabling timely intervention in cases of compromised flap perfusion.

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Neurodevelopmental outcomes for preschool-age children in the United States with in utero Zika virus (ZIKV) exposure have not yet been reported. We performed a case-control study to assess whether children exposed in utero to ZIKV have abnormal neurodevelopment at age 4-5 years compared to unexposed controls. Thirteen ZIKV-exposed cases that did not have microcephaly or other specific features of congenital Zika syndrome and 12 controls were evaluated between ages 4-5 years.

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Previous studies have shown that minimizing the length of hospital stay (LOS) following surgical procedures reduces costs and can improve the patients' quality of life and satisfaction. However, this relationship has not been defined following operative treatment for developmental dysplasia of the hip (DDH). Therefore, the purpose of this study was to determine the most important nonmodifiable and modifiable factors that can predispose patients to require a prolonged LOS following hip dysplasia surgery.

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Piperacillin/tazobactam treatment in children: evidence of subtherapeutic concentrations.

Front Pharmacol

July 2024

Department of Clinical Pharmacy, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Engineering and Technology Research Center for Pediatric Drug Development, Shandong Medicine and Health Key Laboratory of Clinical Pharmacy, Jinan, China.

Objective: Piperacillin/tazobactam (PIP/TAZ) is used for the treatment of lower respiratory tract bacterial infections in children. This study was performed to evaluate if the current dosing regimen results in therapeutic drug concentrations.

Patients And Methods: Patients suspected or proven to have lower respiratory tract bacterial infection and administrated PIP/TAZ intravenously for a duration of no less than 0.

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Background: Bariatric surgery and lifestyle modification are important treatments for obesity, a risk factor for metabolic dysfunction-associated steatohepatitis (MASH). Studies have related weight reduction with changes in MASH, however, few have used imaging to investigate effects on liver health. We evaluated differences in liver response to obesity treatment using disease activity iron corrected T1 (cT1) and proton density fat fraction (PDFF) in patients with both obesity and metabolic dysfunction-associated steatotic liver disease (MASLD).

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