Olfactory Tissue (IMAGE) Johns Hopkins Medicine Caption Three days after damaging the olfactory tissue of a mouse bred to lack the inflammation molecule NF-kB, fewer new cells regenerate (green) compared to a mouse with normal levels of NF-kB. Credit Andrew Lane lab 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.