OBJECTIVE: In our study, we planned to deliver the TNF-α antisense oligonucleotide to central nervous system by intravenous administration with the help of carrier to treat severe traumatic brain injury. METHODS: Adult Sprague-Dawley rats(total 100) subjected to severe fluid-percussion TBI were randomized divided into four groups (25 rats per group) in in vivo experiments. The animal received one of the following injections: group 1 was intravenously injected with TNF-alpha-ASODN loaded nanooarticle suspens...