Peptide Co-injection Thickens Mouse Bone (IMAGE) Tokyo Medical and Dental University Caption Yellow arrowheads indicate newly formed bone. Credit Department of Bio-Matrix (Pharmacology), TMDU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.