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Association of neurogranin with delirium among critically ill patients.

Márcia Lz WanderlindRenata GonçalvesCristiane D TomasiFelipe Dal PizzolCristiane Ritter
Published in: Biomarkers in medicine (2021)
Background: Neurogranin (Ng) concentrates at dendritic spines. In patients with Alzheimer disease Ng levels are elevated. The role of Ng in delirium development has not been assessed, therefore we hypothesized that Ng levels are associated with delirium in critically ill patients. Materials & methods: From 94 critically ill patients, 47 developed delirium and 47 controls were included. Blood was collected during the first 24 h of intensive care unit (ICU) admission, and on the day of delirium diagnoses. Ng and IL-1β were determined. Results: Ng and IL-1β levels were higher in the delirium group at ICU admission and on the day of delirium diagnoses. IL-1β and Ng were independently associated with delirium occurrence. Conclusion: Ng levels are associated with delirium development in ICU patients.
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