Molecular Path from Internal Clock (2 of 2) (image) University of Pennsylvania School of Medicine Share Print E-Mail Caption This is a model of the role of miR-279 and JAK/STAT signaling in control of circadian-driven behavior. Credit Wenyu Luo, PhD, Perelman School of Medicine, University of Pennsylvania; Cell. Usage Restrictions None Share Print E-Mail 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.