Publications by authors named "Rodman C"

Article Synopsis
  • The study aimed to analyze the microbial patterns and outcomes of pediatric patients who underwent mastoidectomy for acute coalescent mastoiditis, focusing on factors linked to poor outcomes.
  • Researchers examined 46 patients from a large hospital database, noting that S. pyogenes and S. pneumoniae were the most common bacteria found, while a significant portion of cultures showed no growth.
  • Results indicated that patients with negative cultures had longer hospital stays and a higher need for additional medical interventions, with female gender emerging as a significant factor associated with positive culture results.
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Background: Diabetes Mellitus (DM) and its associated immune dysfunction are well-studied risk factors for adverse surgical outcomes. The literature regarding endoscopic sinus surgery (ESS) is less robust and there have been conflicting reports on post-operative complications and surgical results in this patient population. The purpose of this study was to analyze the impact of diabetes mellitus on outcomes after ESS via rates of post-operative medical intervention in the first 6 months after surgery.

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To examine prescription opioid and nonopioid analgesic use among US construction workers and their associations with pain conditions and sociodemographic factors. We analyzed data for about 9000 (weighted 11.5 million per year) construction workers who responded to the Medical Expenditure Panel Survey from 2011 to 2018.

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Patients with the severe form of hemophilia A (HA) present with a severe phenotype, and can suffer from life-threatening, spontaneous hemorrhaging. While prophylactic FVIII infusions have revolutionized the clinical management of HA, this treatment is short-lived, expensive, and it is not available to many A patients worldwide. In the present study, we evaluated a panel of readily available cell types for their suitability as cellular vehicles to deliver long-lasting FVIII replacement following transduction with a retroviral vector encoding a B domain-deleted human F8 transgene.

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Article Synopsis
  • The study investigates how glioblastoma, a type of brain cancer, interacts with its surrounding environment, particularly focusing on the role of macrophages in promoting mesenchymal-like characteristics in cancer cells.
  • Researchers utilized single-cell RNA sequencing and functional experiments to demonstrate that macrophages trigger these changes through the release of a protein called oncostatin M (OSM), which activates specific receptors on glioblastoma cells.
  • The findings also reveal that the transformation to mesenchymal-like states is linked with a stronger immune response, including increased activity of T cells and changes in macrophage behavior, suggesting potential avenues for cancer treatment.
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The choroid plexus (ChP) in each brain ventricle produces cerebrospinal fluid (CSF) and forms the blood-CSF barrier. Here, we construct a single-cell and spatial atlas of each ChP in the developing, adult, and aged mouse brain. We delineate diverse cell types, subtypes, cell states, and expression programs in epithelial and mesenchymal cells across ages and ventricles.

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The construction sector has been hit hard by the opioid crisis. We describe CPWR-The Center for Construction Research and Training's recent efforts to address the challenges of opioid use in the construction industry. With support and guidance from the North America's Building Trades Unions Opioid Task Force, CPWR undertook three projects to promote prevention and best practices for struggling construction workers.

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Metastatic castration-resistant prostate cancer is typically lethal, exhibiting intrinsic or acquired resistance to second-generation androgen-targeting therapies and minimal response to immune checkpoint inhibitors. Cellular programs driving resistance in both cancer and immune cells remain poorly understood. We present single-cell transcriptomes from 14 patients with advanced prostate cancer, spanning all common metastatic sites.

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Cultured cell lines are the workhorse of cancer research, but the extent to which they recapitulate the heterogeneity observed among malignant cells in tumors is unclear. Here we used multiplexed single-cell RNA-seq to profile 198 cancer cell lines from 22 cancer types. We identified 12 expression programs that are recurrently heterogeneous within multiple cancer cell lines.

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The biomechanics of constant speed walking have been well quantified, but little is known about transitions between walking speeds. Spatiotemporal behavior (step time, length, and speed) has been investigated in starting, stopping, and walking to running transitions, but speed transitions during walking have yet to be investigated. This study quantified the spatiotemporal parameter behavior during walking speed transitions with a range of magnitudes (or differences between pre- and post-transition normalized speeds ranging from 0.

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Objective: To assess the benefits of bimodal listening (i.e., addition of contralateral hearing aid) for cochlear implant (CI) users on real-world tasks involving high-talker variability speech materials, environmental sounds, and self-reported quality of life (quality of hearing) in listeners' own best-aided conditions.

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Unlabelled: While tissue engineering holds significant potential to address current limitations in reconstructive surgery of the head and neck, few constructs have made their way into routine clinical use. In this review, we aim to appraise the state of head and neck tissue engineering over the past five years, with a specific focus on otologic, nasal, craniofacial bone, and laryngotracheal applications. A comprehensive scoping search of the PubMed database was performed and over 2000 article hits were returned with 290 articles included in the final review.

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Objectives: Objective evaluation of the ergonomic risk of common otolaryngology procedures and assessment of work-related musculoskeletal pain and injury.

Study Design: Cross-sectional intraoperative assessment and survey.

Setting: Department of Otolaryngology at a tertiary children's hospital.

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Malignant abdominal fluid (ascites) frequently develops in women with advanced high-grade serous ovarian cancer (HGSOC) and is associated with drug resistance and a poor prognosis. To comprehensively characterize the HGSOC ascites ecosystem, we used single-cell RNA sequencing to profile ~11,000 cells from 22 ascites specimens from 11 patients with HGSOC. We found significant inter-patient variability in the composition and functional programs of ascites cells, including immunomodulatory fibroblast sub-populations and dichotomous macrophage populations.

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The current study examined sentence recognition across speaking styles (conversational, neutral, and clear) in quiet and multi-talker babble (MTB) for cochlear implant (CI) users and normal-hearing listeners under CI simulations. Listeners demonstrated poorer recognition accuracy in MTB than in quiet, but were relatively more accurate with clear speech overall. Within CI users, higher-performing participants were also more accurate in MTB when listening to clear speech.

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Despite advances in surgical technique, postoperative hemorrhage remains a common cause of mortality and morbidity for patients following tonsillectomy. Application of biomaterials at the time of tonsillectomy can potentially accelerate mucosal wound healing and eliminate the risk of post-tonsillectomy hemorrhage (PTH). To understand the current state and identify possible routes for the development of the ideal biomaterials to prevent PTH, topical biomaterials for eliminating the risk of PTH were reviewed.

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Diverse genetic, epigenetic, and developmental programs drive glioblastoma, an incurable and poorly understood tumor, but their precise characterization remains challenging. Here, we use an integrative approach spanning single-cell RNA-sequencing of 28 tumors, bulk genetic and expression analysis of 401 specimens from the The Cancer Genome Atlas (TCGA), functional approaches, and single-cell lineage tracing to derive a unified model of cellular states and genetic diversity in glioblastoma. We find that malignant cells in glioblastoma exist in four main cellular states that recapitulate distinct neural cell types, are influenced by the tumor microenvironment, and exhibit plasticity.

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Lineage tracing provides key insights into the fate of individual cells in complex organisms. Although effective genetic labeling approaches are available in model systems, in humans, most approaches require detection of nuclear somatic mutations, which have high error rates, limited scale, and do not capture cell state information. Here, we show that somatic mutations in mtDNA can be tracked by single-cell RNA or assay for transposase accessible chromatin (ATAC) sequencing.

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Article Synopsis
  • * The research reveals a resistance program in malignant cells that leads to immune evasion, characterized by T cell exclusion and present before immunotherapy begins; this program can help predict which patients will respond to anti-PD-1 therapy.
  • * Combining CDK4/6 inhibitors with immunotherapy shows promise, as it can suppress the resistance program in cancer cells, induce cell senescence, and reduce tumor growth in mouse models, suggesting new treatment strategies for overcoming resistance to ICI.
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Article Synopsis
  • The hematopoietic stem cell compartment is highly sensitive to radiation, which can lead to leukemias, particularly concerning for astronauts on long space missions.
  • Recent research showed that exposure to solar energetic particle and cosmic ray radiation can change the functionality and DNA integrity of human hematopoietic stem cells, possibly resulting in leukemia.
  • The study also investigated how radiation affects mesenchymal stem cells in the bone marrow niche, revealing that this damage can impair the ability of the niche to support healthy blood cell production and immune function.
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The diverse malignant, stromal, and immune cells in tumors affect growth, metastasis, and response to therapy. We profiled transcriptomes of ∼6,000 single cells from 18 head and neck squamous cell carcinoma (HNSCC) patients, including five matched pairs of primary tumors and lymph node metastases. Stromal and immune cells had consistent expression programs across patients.

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