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To gain insight into the specificity of cerebellar vermian abnormalities reported in autism, we conducted a magnetic resonance imaging (MRI) study of boys with either of two conditions associated with autism, Down syndrome and fragile X syndrome, compared with boys with idiopathic autism and controls. The subjects, ranging in age from 3 to 9 years, included(More)
D-Arginine dehydrogenase activity was discovered in Pseudomonas aeruginosa. This enzyme was inducible by its substrate, D-arginine, as well as by its product, 2-ketoarginine, but not by L-arginine. The enzyme activity was measured in vitro, in the presence of artificial electron acceptore (phenazine methosulphate and iodonitrotetrazolium chloride).(More)
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