Table 2.

Exclusion criteria.

Proteins—Studies Excluded If:	miRNAs—Studies Excluded If:
No TBI model	No TBI model
No brain tissue	No brain tissue
In vitro/cell/human model utilised	In vitro/cell/human model utilised
No full text available	No full text available
No primary paper	No primary paper
Protein expression after any treatment	miRNA expression after any treatment
Mild or moderate TBI	Mild or moderate TBI
Protein expression not analysed	miRNA expression not analysed
No English language	No English language