期刊
CLINICAL EPIGENETICS
卷 13, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13148-021-01128-z
关键词
Pediatric mild traumatic brain injury; Depression; DNA methylation; Post-concussion symptom burden; Pediatric quality of life
资金
- National Institutes of Health [1R01NS098494-01A1, 3R01NS098494-03S1A1, R01EB006841, R01MH118695]
- National Institute of Mental Health
The study found that DNA methylation within the major depression pathway improved the prediction accuracy for quality of life but not for persistent post-concussive symptom burden in pediatric mTBI patients. Depression symptoms were strongly predictive for both post-concussive symptom burden and pediatric quality of life.
Background Major depression has been recognized as the most commonly diagnosed psychiatric complication of mild traumatic brain injury (mTBI). Moreover, major depression is associated with poor outcomes following mTBI; however, the underlying biological mechanisms of this are largely unknown. Recently, genomic and epigenetic factors have been increasingly implicated in the recovery following TBI. Results This study leveraged DNA methylation within the major depression pathway, along with demographic and behavior measures (features used in the clinical model) to predict post-concussive symptom burden and quality of life four-month post-injury in a cohort of 110 pediatric mTBI patients and 87 age-matched healthy controls. The results demonstrated that including DNA methylation markers in the major depression pathway improved the prediction accuracy for quality of life but not persistent post-concussive symptom burden. Specifically, the prediction accuracy (i.e., the correlation between the predicted value and observed value) of quality of life was improved from 0.59 (p = 1.20 x 10(-3)) (clinical model) to 0.71 (p = 3.89 x 10(-5)); the identified cytosine-phosphate-guanine sites were mainly in the open sea regions and the mapped genes were related to TBI in several molecular studies. Moreover, depression symptoms were a strong predictor (with large weights) for both post-concussive symptom burden and pediatric quality of life. Conclusion This study emphasized that both molecular and behavioral manifestations of depression symptoms played a prominent role in predicting the recovery process following pediatric mTBI, suggesting the urgent need to further study TBI-caused depression symptoms for better recovery outcome.
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