High Il-1β Serum as a Predictor of Decreased Cognitive Function in Mild Traumatic Brain Injury Patients
DOI:
https://doi.org/10.3889/oamjms.2018.390Keywords:
IL-1β serum, cognitive dysfunction, traumatic brain injuryAbstract
BACKGROUND: Traumatic brain injury (TBI) exerts a significant impact on society with regards to physical, affective, and cognitive impairment. The consequent cognitive sequelae include a problem in memory, attention, concentration, and processing speed. Following traumatic brain injury, inflammatory response developed, characterised by increased interleukin 1-β (IL-1β) levels in the blood. IL 1-β at pathophysiological concentration has been reported to cause an inhibition of the expression of long-term potentiation (LTP) in the areas CA1, CA3, and dentate gyrus of the hippocampus.
AIM: This study aims to determine whether high IL-1β serum is a predictor of decreased cognitive function in mild TBI.
METHODS: This is a prospective cohort study conducted at the emergency room, surgical and neurologic ward at Sanglah Hospital from November 2017 until January 2018. As many as thirty-five mild TBI with normal IL-1β serum (< 0.0565 pg/ml) and thirty-five of those with high IL-1β serum (≥ 0.0565 pg/ml) subjects were included within the corresponding period. The decrease of cognition after trauma was measured seven days later.
RESULTS: This study demonstrated that group with high IL-1β serum levels were at higher risk of suffering from cognitive impairment after TBI when compared with the group with normal IL-1β serum levels (RR = 2.6; 95% CI 1.49-4.55, p < 0.001).
CONCLUSION: Mild TBI with high serum IL-1β levels were more than twice likely to experience decreased cognitive function than those with normal IL-1β levels.
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