Publications by authors named "Michelle O'Rourke"

Background: Inflammation is associated with many disorders of preterm infants including periventricular leukomalacia, chronic lung disease, and necrotizing enterocolitis. Activated protein c (APC) has shown positive immunomodulatory effects.

Objectives: We aimed to study neutrophil and monocyte function in response to lipopolysaccharide (LPS) and APC stimulation in preterm infants <32 weeks gestation over the first week of life compared to neonatal and adult controls.

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Article Synopsis
  • - Sepsis is a critical issue in the Pediatric Intensive Care Unit (PICU), leading to high rates of illness and death, with affected patients often experiencing temporary immune system weakness.
  • - Activated Protein C (APC) was initially thought to improve outcomes in sepsis, but recent trials show no benefits for either adults or children, leading researchers to investigate APC's effects on immune responses in PICU patients.
  • - The study found that PICU patients had lower immune responses to bacteria and that APC treatment decreased harmful reactive oxygen production, suggesting APC might help improve immune function in severely ill children, particularly with newer formulations that have less risk of bleeding.
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Background: Overuse of arterial blood gas (ABG) determinations leads to increased costs, inefficient use of staff work hours, and patient discomfort and blood loss. We developed guidelines to optimize ABG use in the ICU.

Methods: ABG use guidelines were implemented in all adult ICUs in our institution: three medical, two trauma-surgery, one cardiovascular, and one neurosurgical ICU.

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This paper discusses the uptake of standardized terminology and definitions for texture modified foods and fluids. The Australian dietetic and speech-language pathology associations endorsed national standards in 2007. This project sought to determine the barriers and enablers for use of the national standards in clinical practice.

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Electrochemical impedance spectroscopy (EIS) has been used to estimate the non-frequency dependent (static) dielectric constants of base polymers such as poly(vinyl chloride) (PVC), cellulose triacetate (CTA) and polystyrene (PS). Polymer inclusion membranes (PIMs) containing different amounts of PVC or CTA, along with the room temperature ionic liquid Aliquat 336 and plasticizers such as trisbutoxyethyl phosphate (TBEP), dioctyl sebecate (DOS) and 2-nitrophenyloctyl ether (NPOE) have been investigated. In this study, the complex and abstract method of EIS has been applied in a simple and easy to use way, so as to make the method accessible to membrane scientists and engineers who may not possess the detailed knowledge of electrochemistry and interfacial science needed for a rigorous interpretation of EIS results.

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