Patient derived 3D brain organoid (IMAGE) Kyushu University Caption Images of brain organoids from control (top) and Rett syndrome (RTT) (left) patients, with astrocytes stained in cyan. You can see that the intensity of cyan color is higher in the RTT brain organoids. Credit Kyushu University/Nakashima Lab Usage Restrictions Only for media and non-commercial use. Credit accordingly. 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.