Nematode Study Reveals Opioid Regulator (IMAGE) Scripps Research Institute Caption Using C. elegans, Scripps Research neuroscientists Brock Grill, Kirill Martemyanov and Dandan Wang discovered a new genetic regulator of opioid signalling. Credit Scott Wiseman for Scripps Research 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.