Immunohistochemistry (IMAGE) Neural Regeneration Research Caption This is immunohistochemistry showing normobaric oxygen pretreatment increased the expression of Notch-1 in the cerebral cortex of rats with focal cerebral ischemia. Credit <i>Neural Regeneration Research</i> 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.