The pH during one of the reactions was a bit too low, causing the drug to extrude a single small molecule of propionic acid, which transformed it from a powerful narcotic into a poison that laid waste to the brain's dopamine receptors. (discovermagazine.com)
MacFabe, et al., Neurobiological effects of intraventricular propionic acid in rats: Possible role of short chain fatty acids on the pathogenesis and characteristics of autism spectrum disorders. (nourishinghope.com)
On the contrary, short - chain fatty acids, first and foremost propionic acid (or its salt propionate), lead to the development and propagation of regulatory cells of the immune system in the intestinal wall. (sciencedaily.com)