PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30889482-5 2019 When mRNA encoding a cartilage-anabolic transcription factor, runt-related transcription factor-1, was administered to a rat model of coccygeal disk degeneration using a polyplex nanomicelle composed of polyethylene glycol-polyamino acid block copolymers and mRNA, the disk height was maintained to a significantly higher extent ( 81%) compared to saline control (69%), with prevention of fibrosis in the disk tissue. copolymers 244-254 RUNX family transcription factor 1 Rattus norvegicus 62-97