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Research Projects

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Arkansas Children's Research Institute

Academic Collaborators

Industry Partners

in collaboration with:

Scientific Rationale

The critical care laboratory has a central theme of investigating sepsis and inflammation, studying the pathophysiology, opportunities for treatment, and optimizing support of secondarily injured organs such as the lung. Sepsis is an overzealous response that results in immune dysregulation and organ dysfunction. The global estimated incidence of sepsis in children is 1.2 million cases per year with a mortality rate of up to 20% [Fleischmann-Struzek Lancet Respir Med 2018].1 Because of this substantial disease burden, sepsis has been classified by the World Health Organization as a global health priority. Lung injury can develop from sepsis, and has a similarly high prevalence with up to 64% of critically ill patients requiring mechanical ventilation for support [Farias Intens Care Med 2004].

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Treatment of sepsis includes fluid administration, antibiotic therapy, and supporting multiple organ dysfunction but lacks definitive treatment strategies. There are several reasons for the absence of efficacious therapy despite decades of study. The first is the gap between small animal research studies and implementation into human trials. While small animal studies are critical to developing therapeutic strategies and are phylogenetically respectful, it is equally important that these therapies be tested in a large animal model with a similar temporal and pathophysiologic evolution of human sepsis, and response to treatment. It is also vital that the animals are treated as though they are in an intensive care unit to replicate standard of care management as closely as possible. Therapies that have not successfully modified sepsis-related outcomes include those that attempt to blunt the entire immune response (e.g. steroids) but do not differentiate the helpful inflammation from the harmful, exaggerated inflammation, thereby eliminating nature’s first line of defense. Finally, many treatments use a ‘one-size-fits all’ approach which may demonstrate benefit when averaged across an entire population but do not treat the individual in a patient-specific approach.

 

The critical care laboratory projects are all geared toward modifying sepsis and lung injury in a multi-pronged approach by first enhancing the understanding of harmful sepsis pathways, then addressing them in a targeted manner, while also determining means of supporting the secondarily injured lung.

Project Timeline

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©2020 by Mikki Kollisch.

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