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Biomedical subjects

R Rowlett

Publications and source records attributed to R Rowlett.

5 recordsLinked to original sources

Fluoxetine treatment of children and adults with autistic disorder and mental retardation.

An open trial of pharmacological treatment with fluoxetine, ranging from 20 mg every other day to 80 mg per day, led to a significant improvement in Clinical Global Impressions ratings of Clinical Severity in 15 of 23 subjects with autistic disorder and 10 of 16 subjects with mental retardation. Six of 23 patients with autistic disorder and 3 of 16 patients with mental retardation had side effects which significantly interfered with function, consisting predominantly of restlessness, hyperactivity, agitation, decreased appetite, or insomnia. Double-blind studies of the efficacy of pharmacological agents that potently inhibit 5-HT uptake in the treatment of mental retardation coexisting with Axis I psychiatric disorders (especially obsessive-compulsive disorder) and autistic disorder are warranted.

Adolescent

An electron spin resonance investigation and molecular orbital calculation of the anion radical intermediate in the enzymatic cis-trans isomerization of furylfuramide, a nitrofuran derivative of ethylene.

The enzymatic cis-trans isomerization of nitrofuran derivatives has been proposed to occur via the formation of a radical anion intermediate. ESR investigations, in conjunction with intermediate neglect of differential overlap (INDO) molecular orbital calculations, support this concept by demonstrating the enzymatic generation of cis and trans radical anions of 3-(5-nitro-2-furyl)-2-(2-furyl) acrylamide. The INDO calculations further indicate that the rotational barrier between the cis and trans anion radicals of this compound is only 5--10 kcal/mol, whereas a 70 kcal/mol barrier exists for the parent geometric isomers. Hyperfine splitting constants for the cis-trans conformers have been assigned on the basis of INDO calculations. Surprisingly, only the nitrogen hyperfine splitting of the nitro group is distinguishably different in the two conformers, a result which is not inconsistent with the INDO calculations.

Animals