Articles: cations.
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Major burn injury is associated with systemic hyperinflammatory and oxidative stresses that encompass the wound, vascular, and pulmonary systems that contribute to complications and poor outcomes. These stresses are exacerbated if there is a combined burn and inhalation (B+I) injury, which leads to increases in morbidity and mortality. Nuclear factor-erythroid-2-related factor (NRF2) is a transcription factor that functions to maintain homeostasis during stress, in part by modulating inflammation and oxidative injury. ⋯ When delivered intraperitoneally into mice 1 hour after B+I injury, CDDO-MPs significantly reduced mortality and cytokine dysfunction compared with untreated B-I animals. These data implicate the role of NRF2 regulation of pulmonary and systemic immune dysfunction after burn and B+I injury, and also a deficiency in controlling immune dysregulation. Selectively activating the NRF2 pathway may improve clinical outcomes in burn and B+I patients.
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A 44-year-old woman with a history of dyslipidemia and chronic anemia from uterine fibroids was admitted to the general medicine department of a tertiary hospital for a prolonged fever of 2 months' duration. The patient reported multiple visits to her local general practitioner, with tympanic temperatures up to 38.2 °C, where she was treated with 2 courses of broad-spectrum antibiotics in view of associated sore throat, nonproductive cough, and generalized lethargy. Although her respiratory symptoms abated within a few days of her initial presentation, her fever and lethargy persisted. ⋯ Subsequent CT scan of the thorax, abdomen, and pelvis detected an enlarged subcarinal lymph node measuring 3.7 cm × 1.7 cm and a mildly enlarged pre-carinal lymph node measuring 2.0 × 1.5 cm, with a mean attenuation of 66-77 Hounsfield Units (HU), and no central necrosis or calcification. No significant abnormalities were detected in the abdomen or pelvis. The patient was then referred to the respiratory department for further evaluation.
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Mispositioning of microelectrodes during deep brain stimulation surgery can incur serious complications for patients. Current practice of creating a burr hole for introduction of the microelectrode is done freehand and can cause trajectory misalignment. We aimed to create a sterilizable surgical adjunct to minimize error from burr hole placement. ⋯ This proof-of-concept study highlights the utility of 3D-printed surgical adjuncts that are fully customizable and rapidly produced to improve current surgical practice. The jig reduced surgery duration, need for multiple trajectories, and risk of potentially devastating neurological complications. As demonstrated, 3D-printed devices are useful as surgical adjuncts to optimize safety and efficacy in deep brain stimulation surgeries.