Functional interaction networks of known TBI-related protein biomarkers and inflammatory molecules predicted to be regulated targets of miRNA let-7i miRNA as predicted by the Ingenuity Pathway Analysis program (NMDA, N-methyl-D-aspartate; UCHL-1, ubiquitin C-terminal hydrolase-1; TNF-α, tumor necrosis factor-α; IL-1β, interleukin-1β; IL-6, interleukin-6; IL-8, interleukin-8).