PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22320360-7 2012 The results showed that n-HA/PA composites had great bioactivity, demonstrating significant BMSC proliferation, active alkaline phosphatase secretion, and stimulating the expression of osteogenic proteins (bone morphogenetic protein 2 [BMP2], osteoprotegerin [OPG], osteopontin [OPN], collagen type I [Col I], and osteocalcin [OCN]), in comparison to the control (polyethylene). Protactinium 29-31 osteocalcin Oryctolagus cuniculus 314-325