Collect blood samples from patients with moderate to severe TBI and healthy people, and detect the expression of circMETTL9 by Real-time Quantitative PCR Detecting System(qPCR).Receiver operating characteristic curve (ROC) was used to analyze the sensitivity and specificity of circMETTL9 in TBI patients.~Using the Glasgow coma scale (GCS) and the coma recovery scale-revised (CRS-R) to assess the patient's disturbance of consciousness at 1, 3, 7, 14, and 21 days after TBI, respectively, The cognitive function of patients was assessed with the revised Rachel los amigos scale-revised (RLAS-R), and the correlation of circMETTL9 with disturbance of consciousness and cognitive function in TBI patients was analyzed.~Six months after TBI, the disability rating scale (DRS) and Glasgow outcome scale-extended (GOSE) were used to evaluate the prognosis of patients six months after discharge, and the correlation between circMETTL9 and prognosis was analyzed. sex.
Objective: The relevance of circMETTL9 to the degree of injury, disturbance of consciousness, cognitive function and prognosis in patients with moderate to severe traumatic brain injury (TBI) remains unknown. The purpose of this study was to investigate the effect of circMETTL9 on the degree of injury, disturbance of consciousness, cognitive function and prognosis after TBI.