Tourette's syndrome: a neurochemical analysis of postmortem cortical brain tissue.

Abstract:

:Postmortem frontal, temporal, and occipital regions of the brain from adult patients who had a diagnosis of Tourette's syndrome were analyzed for neurochemical alterations. In 3 of 4 TS-affected brains, the concentration of adenosine 3',5'-monophosphate (cyclic AMP) was reduced in all brain regions evaluated. This diminution in cyclic AMP was not associated with a significant change in the activity of the synthesizing enzyme, adenylate cyclase. No significant differences were identified for the neurotransmitter-synthesizing enzymes choline acetyltransferase and glutamate decarboxylase. Concentrations of dopamine, norepinephrine, and the serotonin metabolite 5-hydroxyindoleacetic acid were not altered. Postsynaptic receptor-binding activity for muscarinic cholinergic ([3H]quinuclidinyl benzilate) and beta receptors ([125I]iodocyanopindolol) showed no generalized impairment. It is suggested that symptoms of Tourette's syndrome might be related to an abnormality within a second messenger system.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Singer HS,Hahn IH,Krowiak E,Nelson E,Moran T

doi

10.1002/ana.410270415

subject

Has Abstract

pub_date

1990-04-01 00:00:00

pages

443-6

issue

4

eissn

0364-5134

issn

1531-8249

journal_volume

27

pub_type

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