Toluene and the Brain Abuse of substances containing toluene (for
example, glue) can produce various neurological symptoms. In an
investigation of the mechanism of these toxic effects, researchers
measured the concentrations of various chemicals in the brains of rats
that had been exposed to a toluene-laden atmosphere, and also in
unexposed control rats. The concentrations of the brain chemical
norepinephrine (NE) in the medulla region of the brain, for six
toluene-exposed rats and five control rats, are given in accompanying
data file in ng/g.