Worm (IMAGE) University of Maryland School of Medicine Caption Glowing sensory cells in the worm C. elegans that make complement factor H protein. Credit PNAS Usage Restrictions Must credit PNAS and cite the publication 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.