Publications by authors named "Case N"

Introduction: Awakening from coma is crucial for survivors of cardiac arrest, though coma duration is variable. We tested the association of coma duration with short-term functional recovery and long-term survival after cardiac arrest.

Methods: In this retrospective cohort study, we identified post-arrest patients who were comatose on presentation but awakened during hospitalization.

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  • Cerebral edema after cardiac arrest can be assessed using the grey matter to white matter radiodensity (GWR) ratio from CT scans, with severe edema linked to worse patient outcomes.
  • A study examined 2,204 patients who were unresponsive after cardiac arrest, analyzing how the GWR's ability to predict in-hospital mortality and death by neurologic criteria (DNC) changed in the first 24 hours following the event.
  • Results indicated that the sensitivity of GWR for predicting mortality improved over the first five hours post-arrest, while maintaining a low false positive rate, suggesting that timing of GWR assessments is critical for accurate prognostication.
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: Clinical treatments involving autologous cell-based therapies (ACBT) remain prevalent despite a lack of scientific backing and an evolving regulatory landscape aimed at assessing their safety and efficacy for clinical adoption. This study seeks to assess patients' experiences and perceptions of clinical treatments involving ACBT and their knowledge and views of the regulatory context and associated governance issues. : An anonymous online survey of 181 participants who have been treated or are in the process of being treated with ACBT was conducted.

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Candida albicans is a major fungal pathogen of humans that can cause serious systemic infections in vulnerable immunocompromised populations. One of its virulence attributes is its capacity to transition between yeast and filamentous morphologies, but our understanding of this process remains incomplete. Here, we analyzed data from a functional genomic screen performed with the C.

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We report a simple, inexpensive design of a fluorescence microscope with light-emitting diode (LED) excitation for detection of labeled and unlabeled microorganisms in mineral substrates. The use of deep UV (DUV) excitation with visible emission requires no specialized optics or slides and can be implemented easily and inexpensively using an oblique illumination geometry. DUV excitation (<280 nm) is preferable to near UV (365 nm) for avoidance of mineral autofluorescence.

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is a leading human fungal pathogen that often causes life-threatening infections in immunocompromised individuals. The ability of to transition between yeast and filamentous forms is key to its virulence, and this occurs in response to many host-relevant cues, including engulfment by host macrophages. While previous efforts identified genes required for filamentation in other conditions, the genes important for this morphological transition upon internalization by macrophages remained largely enigmatic.

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Background: Grey-white ratio (GWR) can estimate severity of cytotoxic cerebral edema secondary to hypoxic-ischemic brain injury after cardiac arrest and predict progression to death by neurologic criteria (DNC). Current approaches to calculating GWR are not standardized and have variable interrater reliability. We tested if measures of variance of brain density on early computed tomographic (CT) imaging after cardiac arrest could predict DNC.

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Background: Burnout is insidious and manifests over prolonged, repeated exposure to occupational stressors. There is a growing crisis among health care workers (HCWs) due to high levels of burnout and associated adverse outcomes. Identifying and addressing burnout can be problematic due to extensive variances of perceived occupational stressors across HCWs.

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  • Connective tissue models derived from cell monolayers are valuable for drug screening, wound healing, and regenerative engineering, but they struggle to assemble and maintain fibrillar collagen like in the body.
  • The use of macromolecular crowding (MMC) has proven effective in enhancing fibrillar collagen assembly and accumulation in cell cultures.
  • This study combined carrageenan hydrogel to release soluble macromolecules and act as a confinement barrier, which improved collagen accumulation in human MG-63 bone cells without affecting cell viability.
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  • The study aimed to determine how often CT scans reveal significant findings in patients who suffered out-of-hospital cardiac arrest (OHCA).
  • It included data from 597 non-traumatic OHCA patients treated at a single center over two years, with radiology findings summarized from CT scans taken within 24 hours of their arrival at the emergency department.
  • Results showed that a majority underwent CT scans, with notable findings such as intracranial hemorrhage and pulmonary complications, indicating that CT can reveal important medical issues in these patients.
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  • The study looks at how feeling sad and drinking too much alcohol affects risky driving in men who have been caught driving while impaired.
  • Researchers asked participants about their mood, drinking habits, and how much they like excitement, then checked their driving habits again after 3 and 9 years.
  • The results showed that drinking too much alcohol is linked to risky driving, but being in a depressed mood didn’t really make a difference.
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Introduction: We compared novel methods of long-term follow-up after resuscitation from cardiac arrest to a query of the National Death Index (NDI). We hypothesized use of the electronic health record (EHR), and internet-based sources would have high sensitivity for identifying decedents identified by the NDI.

Methods: We performed a retrospective study including patients treated after cardiac arrest at a single academic center from 2010 to 2018.

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The fungal kingdom represents an extraordinary diversity of organisms with profound impacts across animal, plant, and ecosystem health. Fungi simultaneously support life, by forming beneficial symbioses with plants and producing life-saving medicines, and bring death, by causing devastating diseases in humans, plants, and animals. With climate change, increased antimicrobial resistance, global trade, environmental degradation, and novel viruses altering the impact of fungi on health and disease, developing new approaches is now more crucial than ever to combat the threats posed by fungi and to harness their extraordinary potential for applications in human health, food supply, and environmental remediation.

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"Fungi on Mars!": a popular news heading that piques public interest and makes scientists' blood boil. While such a statement is laden with misinformation and light on evidence, the search for past and present extraterrestrial life is an ongoing scientific effort. Moreover, it is one that is increasingly gaining momentum with the recent collection of martian rock cores from Jezero Crater by NASA's Perseverance rover.

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Volumetric muscle loss (VML) is traumatic or surgical loss of skeletal muscle with resultant functional impairment. Skeletal muscle's innate capacity for regeneration is lost with VML due to a critical loss of stem cells, extracellular matrix, and neuromuscular junctions. Consequences of VML include permanent disability or delayed amputations of the affected limb.

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Evasion of killing by immune cells is crucial for fungal survival in the host. For the human fungal pathogen Candida albicans, internalization by macrophages induces a transition from yeast to filaments that promotes macrophage death and fungal escape. Nutrient deprivation, alkaline pH, and oxidative stress have been implicated as triggers of intraphagosomal filamentation; however, the impact of other host-derived factors remained unknown.

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Platelet-rich plasma (PRP) is an autologous blood product that contains a variety of growth factors (GFs) that are released upon platelet activation. Despite some therapeutic potential of PRP in vitro, in vivo data are not convincing. Bolus injection of PRP is cleared rapidly from the body diminishing its therapeutic efficacy.

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The first meeting of the CIFAR research program saw the congregation of experts on fungal biology to address the most pressing threats fungi pose to global health, agriculture, and biodiversity. This report covers the research discussed during the meeting and the advancements made toward mitigating the devastating impact of fungi on plants, animals, and humans.

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Objectives: The purpose of this study was to identify laboratory parameters representing erythrocyte engraftment to be used as an indicator to change the recipient to donor ABO group and Rh type following an ABO-incompatible hematopoietic stem cell transplant (HSCT). Studies have shown that ABO incompatibility does not have an effect on outcome of HSCT; however, the serologic consequences of these ABO-incompatible transplants can make it difficult to decide when to begin support with donor ABO/Rh-type blood products.

Methods: This study explored the use of RBC distribution width (RDW), mean corpuscular volume, and hemoglobin as regularly tested laboratory parameters that could be used as surrogate markers for RBC engraftment in 65 patients who received ABO/Rh-incompatible HSCT.

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Ultrasonic bioreactors have been used for in vitro experimentation to study cellular responses to low-intensity pulsed ultrasound. The presence of an air interface in these bioreactors contributes to variability in the acoustic pressure field, reducing experimental reproducibility. A multiphysics finite element model was developed to simulate the acoustic field in an in-dish ultrasonic bioreactor, where the transducer is immersed in culture medium above the dish surface, and the effects of replacing air below the dish in the bioreactor with a water layer bounded by an acoustic absorbent layer were evaluated.

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  • Classic models depict mounted herders in Inner Asia during the Bronze Age, but the actual economic practices of these early pastoral societies remain unclear.
  • This study uses collagen mass fingerprinting and ancient DNA to analyze early pastoral cultures in Mongolia, revealing evidence of livestock herding between the late 3rd and early 2nd millennia BCE.
  • Findings indicate horses weren't significantly exploited for diet until later, around 1200 BCE, after which they played a crucial role in pastoral life and mobility, connecting to broader changes in herding practices due to horseback riding innovations.
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Osteoarthritis (OA) is a debilitating joint disease resulting from chronic joint inflammation and erosion of articular cartilage. A promising biological treatment for OA is intra-articular administration of platelet-rich plasma (PRP). However, immediate bolus release of growth factors limits beneficial therapeutic effects of PRP, thus necessitating the demand for sustained release platforms.

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  • The study explores how microarchitectural cues and calcium signaling influence collagen deposition in living tissues and biomaterial scaffolds.
  • Researchers focused on human mesenchymal stem cells (MSCs) and found that the TRPV4 ion channel is essential for calcium oscillations during collagen matrix assembly.
  • Inhibiting TRPV4 disrupted collagen assembly, while activating it promoted alignment, indicating that TRPV4 is vital for the mechanical forces necessary for proper collagen organization.
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A glowing ribbon of purple light running east-west in the night sky has recently been observed by citizen scientists. This narrow, subauroral, visible structure, distinct from the traditional auroral oval, was largely undocumented in the scientific literature and little was known about its formation. Amateur photo sequences showed colors distinctly different from common types of aurora and occasionally indicated magnetic field-aligned substructures.

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