Traumatic brain injury (TBI) is the leading cause of disability in children and young adults. Children with moderate to severe TBI are typically at risk of poor functional outcome in terms of neurocognitive impairment and behavior problems. Neurocognitive impairments include deficits in attention and working memory, learning and memory, and executive functioning, whereas behavior problems include anxiety, depression and aggression. Neuroimaging techniques based on multi-modal magnetic resonance image (MRI) can detect the structural and functional brain abnormalities objectively and sensitively. Recent evidence indicates that even after mild TBI, children with risk factors for intracranial pathology are at risk of poor neurocognitive and behavioral outcome.Meanwhile, recently, the concept of "gut-brain axis" has been proposed and hint gut microbiota could shape the brain. Some studies have emphasized that human gut microbiota plays an important role in the pathogenesis and development of TBI. However, how the gut affects the brain in patients with TBI is unclear. Thus, combining analysis of neuroimaging and "gut-brain axis" will provide more information for finding the risk factors and imaging diagnostic markers of brain impairment in TBI. It will also helpful for explaining the underlying mechanisms of brain impairment in TBI, providing an objective basis for clinical diagnosis and prediction of the prognosis.
Study Type
OBSERVATIONAL
Enrollment
300
Imaging data were collected in a strong magnetic field
gut microbiota
First Affiliated Hospital of Xian Jiaotong University
Xi'an, Shaanxi, China
RECRUITINGChange from baseline brain structure measures at 6 months and 12months
The changes of brain volume (mm3) are evaluated by structural MRI
Time frame: baseline (early injury), post-traumatic for 6 months and 12 months
Change from baseline brain function measures at 6 months and 12months
The changes of brain functional connectivity intensity are evaluated by functional MRI
Time frame: baseline (early injury), post-traumatic for 6 months and 12 months
Changes from baseline cognitive condition at 6 months and 12months
The cognitive condition is assessed by Wechsler Intelligence Scale for Children-IV-Chinese Version (WISC-IV), higher scores represent better cognitive.
Time frame: baseline (early injury), post-traumatic for 6 months and 12 months
Changes from baseline behavior condition at 6 months and 12months
the neuro-behavior condition is assessed by child behavior checklist(CBCL),higher scores represent better behavior symptoms.
Time frame: baseline (early injury), post-traumatic for 6 months and 12 months
Changes from baseline gut microbiota at 6 months and 12months
Fecal samples were collected within 2 days before or after MR examination
Time frame: baseline (early injury), post-traumatic for 6 months and 12 months
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