Neuroinflammatory Biomarkers and Their Associations With Cognitive, Affective, and Functional Outcomes 3 to 12 Months...

Area of Science:

• Neuroscience
• Biomarkers
• Traumatic Brain Injury Research

Background:

• Neuroinflammation is a key, yet poorly understood, aspect of traumatic brain injury (TBI) recovery between 3 and 12 months post-injury.
• Understanding the role of neuroinflammation in later TBI stages is critical for improving patient outcomes.

Purpose of the Study:

• To investigate the relationship between specific neuroinflammation biomarkers and functional outcomes in patients 3 to 12 months after TBI.
• To identify potential indicators of recovery and persistent neuroinflammation in the subacute TBI phase.

Main Methods:

• Pilot study involving 36 TBI patients recruited 3-12 months post-injury.
• Assessment of functional outcomes using scales for disability, life satisfaction, cognitive function, anxiety, depression, and sleep.
• Analysis of plasma biomarkers and their correlation with clinical outcomes via ANOVA and linear regression.

Main Results:

• Brain-derived neurotrophic factor (BDNF) levels increased with time post-injury and correlated with cognitive function.
• S-100β and glial fibrillary acidic protein (GFAP) were linked to anxiety, depression, and hospital length of stay.
• Interleukin 6 (IL-6) showed associations with cognitive function and time since injury.

Conclusions:

• S-100β, GFAP, IL-6, and BDNF are significant biomarkers in the TBI recovery period.
• Neuroinflammation persists into the later rehabilitation stages, necessitating continued clinical monitoring for TBI symptoms.