Novel Macrolide–DEL-1 Axis (IMAGE) Niigata University Caption Novel Macrolide–DEL-1 Axis could be a promising approach for promoting bone regeneration in aging individuals. Credit Niigata University Usage Restrictions The image may only be used with appropriate caption or credit. License Original 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.