Gene-Expression Analyses in the AA(+)/DHA(+) and AA(?)/DHA(?) groups (image) RIKEN Share Print E-Mail Caption These are immunohistological analyses. The key nuclear receptor genes Rxra and Ppara were expressed in the Olig2-positive and Gad67-positive cells. Credit RIKEN Usage Restrictions credit RIKEN 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.