Block HMGB1 or MMP-9 to Reduce Nerve Pain (IMAGE) Hiroshima University Caption Mice received injections of drugs that specifically block the activity of two different molecules. Blocking those molecules reduced pain symptoms coming from nearby nerves. Credit Hiroshima University Usage Restrictions Image may only be used with appropriate credit and caption. 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.