Abstract
ObjectiveUbiquitin C-terminal hydrolase-L1 (UCH-L1) has been established as a reliable and potential biomarker of neuronal damage after acute neurologic insults, such as ischemic stroke, subarachnoid hemorrhage, and traumatic brain injury. However, the effect of serum UCH-L1 levels has not been investigated in carbon monoxide (CO)-poisoned patients. The aim of the present study was to evaluate whether serum UCH-L1 levels are a reliable marker of brain damage and the association of UCH-L1 with outcome. Design and methodsThis case–control study enrolled 46 CO-poisoned subjects and 30 controls. Using an enzyme-linked immunosorbent assay (ELISA) kit, we studied the temporal profile of serum UCH-L1 levels at 6, 12, 24 and 48h after acute CO poisoning. Poisoning severity was assessed using the Glasgow Coma Scale (GCS) score. Long-term outcome was assessed using the Glasgow Outcome Scale (GOS) at 6months after poisoning. ResultsCompared with controls, CO-poisoned patients had significantly elevated serum levels of UCH-L1 at each time point after poisoning. There were significantly higher levels of UCH-L1 in CO-poisoned patients with a lower GCS score as well as in those with a poor 6-month outcome dichotomized GOS. ConclusionsSerum levels of UCH-L1 appear to have potential clinical utility in providing valuable information about poisoning severity and outcome after CO poisoning.
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