Animals 1 Article 1 Bombyx 1 Bombyx mori 1 Bone Morphogenetic Protein 2 1 Bone Morphogenetic Protein 4 1 Bone Regeneration 1 Bone morphogenic protein Gelatin 1 Mice 1 Molecular Weight 1 Osteoblasts 1 Osteogenesis 1 Protein Conformation 1 Protein Structure, Secondary 1 RAW 264.7 Cells 1 RAW 264.7 cell line 1 Rats, Sprague-Dawley 1 Sericins 1 Signal Transduction 1 Silk 1 Silk sericin 1 Spectroscopy, Fourier Transform Infrared 1 Sprague Dawley rat 1 TLR signaling 1 Temperature 1 Toll-Like Receptors 1 X-Ray Microtomography 1 animal 1 animal experiment 1