The ever-expanding number of genes that are mutated in autism is showing us how imbalances in fundamental cellular processes can lead to disease. A recent study by Tărlungeanu et al. (2016) identifies a form of ASD resulting from a failure of the brain to properly import amino acids.
Maynard, T. M., & Manzini, M. C. (2017, February 8). Balancing Act: Maintaining Amino Acid Levels in the Autistic Brain. Neuron. Cell Press. https://doi.org/10.1016/j.neuron.2017.01.015