Illustrated effects (IMAGE) Institute of Science and Technology Austria Caption Using metabolic profiling, the scientists assessed the changes in metabolite composition of the cerebral cortex throughout brain development in mice. In mice and humans, mutations in SLC7A5 resulted in a reduction of brain size after birth and behavioral changes later on. Credit Lisa Knaus (Biorender)/ISTA Usage Restrictions - License Original 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.