Figure 1 (IMAGE) Institute for Basic Science Caption A representative image of MOR over-expression in hippocampal astrocytes of MOR-KO mice. Credit Institute for Basic Science Usage Restrictions Please indicate the credit. 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.