Publications by authors named "George Andrew"

Radiotherapy can be limited by pneumonitis which is impacted by innate immunity, including pathways regulated by TRAIL death receptor DR5. We investigated whether DR5 agonists could rescue mice from toxic effects of radiation and found two different agonists, parenteral PEGylated trimeric-TRAIL (TLY012) and oral TRAIL-Inducing Compound (TIC10/ONC201) could reduce pneumonitis, alveolar-wall thickness, and oxygen desaturation. Lung protection extended to late effects of radiation including less fibrosis at 22-weeks in TLY012-rescued survivors versus un-rescued surviving irradiated-mice.

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Purpose: This study aimed to identify variables that portend early construct failure requiring surgical revision in patients undergoing instrumented fusion for spine metastases.

Methods: A detailed retrospective chart review was performed. Demographic, surgical, and oncologic variables were collected and analyzed via independent samples t-testing, chi-square testing, and Kaplan-Meier method with log-rank testing.

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Background: Distal triceps rupture is a rare injury that is commonly surgically repaired to improve elbow strength and function. Most patients are active and have goals to return to specific activities and sports. There is no gold standard rehabilitation protocol for return to sport (RTS) after distal triceps repair.

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Background: An easy-to-use tool to objectively measure intraoral anatomy with meaningful clinical correlations may improve care for patients with Beckwith-Wiedemann syndrome (BWS), who commonly have symptomatic macroglossia.

Methods: Children aged 2-17 years with BWS were enrolled between 12/2021 and 01/2024. Digital intraoral photographs with a laser ruler were taken, and morphometric measurements were made using ImageJ software.

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Objective: Patients with Beckwith-Wiedemann syndrome commonly have macroglossia, which can negatively affect dentoskeletal development, breathing, speaking, and eating. Tongue reduction surgery can improve symptoms, but there is no standardized surgical approach.

Methods: A video and observational commentary highlighting the effectiveness of a tongue reduction technique for BWS were presented.

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Simpson-Golabi-Behmel syndrome (SGBS) is a rare congenital overgrowth condition characterized by macrosomia, macroglossia, coarse facial features, and development delays. It is caused by pathogenic variants in the GPC3 gene on chromosome Xq26.2.

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Background And Hypothesis: Osteochondral allograft (OCA) transplantation is a well-described technique for the treatment of large, engaging Hill-Sachs lesions (HSLs). Traditionally, OCAs are size-matched to the defect, which can be expensive and time-consuming, and the majority of described techniques require an open approach. Recently, an all-arthroscopic approach to Hill-Sachs OCA transplantation using premade plugs was described, eliminating the need for size-matching and graft harvest.

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Apoptosis is a form of programmed cell death that is mediated by intrinsic and extrinsic pathways. Dysregulation of and resistance to cell death are hallmarks of cancer. For over three decades, the development of therapies to promote treatment of cancer by inducing various cell death modalities, including apoptosis, has been a main goal of clinical oncology.

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Two novel cyclometalated ruthenium complexes, RC-4 and RC-5, featuring 1-phenylisoquinoline and phenyl quinazoline as ancillary ligands, respectively, were synthesized to investigate their viability with the environmentally friendly copper (Cu) redox mediator, [Cu(bpye)]. The modification of the ligand environment resulted in variations in the energetics, photophysical properties, and photovoltaic performance of RC-4 and RC-5 sensitizers. Despite RC-5 sensitizer possessing a more positive ground state potential of 1.

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Beckwith-Wiedemann spectrum (BWSp) is caused by genetic and epigenetic alterations on chromosome 11 that regulate cell growth and division. Considering the diverse phenotypic landscape in BWSp, the characterization of the CDKN1C molecular subtype remains relatively limited. Here, we investigate the role of CDKN1C in the broader BWSp phenotype.

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Background And Purpose: Oligomeric amyloid β (oAβ) exhibits agonist-like action at human α7- and α7β2-containing nicotinic receptors. The N-terminal amyloid β fragment (N-Aβ fragment) modulates presynaptic calcium and enhances hippocampal-based synaptic plasticity via α7-containing nicotinic receptors. Further, the N-Aβ fragment and its core sequence, the N-amyloid-beta core hexapeptide (N-Aβcore), protect against oAβ-associated synapto- and neurotoxicity.

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Fused Granular Fabrication Additive Manufacturing (FGF AM) has the capability to create tooling that is lower cost than conventionally manufactured tooling and still has sufficient properties for many applications. A vacuum infusion (VI) mold was printed from fiberglass-acrylonitrile butadiene styrene (ABS) and evaluated for wear and suitability for small VI runs. The mold was designed to accentuate high wear as a "worst case" scenario.

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Article Synopsis
  • Research is crucial for residency and fellowship programs, and an annual research project can enhance productivity, as explored through a review of presentations from a symposium over five years.
  • Out of 98 presentations analyzed, the overall publication rate was 54%, with residents having a higher first-author publication percentage (70%) compared to fellows (54%).
  • Feedback from current residents indicated a strong perceived value of the annual research symposium, supporting its importance in fostering academic development.
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Objective/ Summary Background Data: We propose the first classification scheme for macroglossia in patients with Beckwith-Wiedemann Syndrome (BWS), the BWS Index of macroGlossia (BIG).

Methods: Patients with molecularly confirmed BWS seen from 2004-2023 were included to develop this system. Relationships among BIG scores, tongue reduction surgery, BWS clinical score, percent mosaicism, and polysomnography findings were examined.

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Background: Osteochondritis dissecans (OCD) of the capitellum is a well-described condition that most commonly affects adolescent throwing athletes and gymnasts. There is no gold standard rehabilitation protocol or timing for return to sport (RTS) after surgical management of OCD of the capitellum.

Hypothesis/purpose: The purpose of the study was to identify in the existing literature any criteria used for RTS following surgical treatment of OCD of the capitellum.

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Article Synopsis
  • Decreased mechanical loading after orthopedic surgery can lead to muscle atrophy, prompting a review of the impact of oral protein supplementation on recovery outcomes.
  • A systematic review of 14 studies, involving 611 patients, found that protein supplementation significantly reduced muscle atrophy and enhanced functional recovery across various surgeries, including ACL reconstruction and hip surgeries.
  • The findings suggest protein supplementation is beneficial post-surgery, but further research is needed to understand long-term effects and develop targeted regimens for different patient populations.
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Article Synopsis
  • The study highlights that the 50% inhibitory concentration (IC50), used to measure how sensitive cancer cells are to treatment, varies based on cell density, leading to density-dependent chemoresistance.
  • Researchers developed a new index called ISDS (IC50-Seeding Density Slope) to better analyze cancer cell responses to chemotherapy compared to the traditional IC50 measurement.
  • Findings suggest that cell density affects levels of autophagy and apoptosis, impacting treatment efficacy, and understanding this could improve cancer therapies and address challenges like minimal residual disease.
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This study was undertaken to identify and characterize the first ligands capable of selectively identifying nicotinic acetylcholine receptors containing α7 and β2 subunits (α7β2-nAChR subtype). Basal forebrain cholinergic neurons express α7β2-nAChR. Here, they appear to mediate neuronal dysfunction induced by the elevated levels of oligomeric amyloid-β associated with early Alzheimer's disease.

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Plastic pollution pervades both marine and terrestrial ecosystems, fragmenting over time into microplastics (MPs) and nano-plastics (NPs). These particles infiltrate organisms via ingestion, inhalation, and dermal absorption, predominantly through the trophic interactions. This review elucidated the impacts of MPs/NPs on the reproductive viability of various species.

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Gastrointestinal diseases exert a profound impact on global health, leading to millions of healthcare interventions and a significant number of fatalities annually. This, coupled with escalating healthcare expenditures, underscores the need for identifying and addressing potential exacerbating factors. One emerging concern is the pervasive presence of microplastics and nano-plastics in the environment, largely attributed to the indiscriminate usage of disposable plastic items.

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Pancreatic cancer is a devastating disease with a poor prognosis. Novel chemotherapeutics in pancreatic cancer have shown limited success, illustrating the urgent need for new treatments. Lurbinectedin (PM01183; LY-01017) received FDA approval in 2020 for metastatic small cell lung cancer on or after platinum-based chemotherapy and is currently undergoing clinical trials in a variety of tumor types.

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Osteochondral allograft transplantation is a well-described technique for the treatment of large, engaging Hill-Sachs lesions. Traditionally, osteochondral allografts are size-matched to the defect, which can be expensive and time-consuming, and the majority of described techniques require an open approach. This Technical Note describes an all-arthroscopic approach to Hill-Sachs osteochondral allograft transplantation using premade osteochondral allograft plugs, eliminating the need for size-matching and graft harvest.

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Reflection on professional practice (either individually or in dialogue with peers or seniors) will often focus on doctors' skills. This approach emphasises compliance and competence. This paper suggests that an alternative and useful lens for professional reflection and development can be drawn from the framework of virtue ethics to encourage consideration of the ultimate purpose of medicine, and the character or virtues needed to be a good doctor.

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This evaluation assessed the effectiveness of graphic-based (i.e., pictorial) report-back materials in communicating the presence of toxic metals in private well water and soil samples.

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