Neurotransmitter receptor alterations in Parkinson's disease
Identifieur interne : 002587 ( Main/Curation ); précédent : 002586; suivant : 002588Neurotransmitter receptor alterations in Parkinson's disease
Auteurs : T. D. Reisine [États-Unis] ; J. Z. Fields [États-Unis] ; H. I. Yamamura [États-Unis] ; E. D. Bird [Royaume-Uni] ; E. Spokes [Royaume-Uni] ; P. S. Schreiner [États-Unis] ; S. J. Enna [États-Unis]Source :
- Life Sciences [ 0024-3205 ] ; 1977.
Abstract
Neurotransmitter receptor binding for GABA, serotonin, cholinergic muscarinic and dopamine receptors and choline acetyltransferase (ChAc) activity were measured in the frontal cortex, caudate nucleus, putamen and globus pallidus from postmortem brains of 10 Parkinsonian patients and 10 controls. No changes in any of these systems were observed in the frontal cortex. In the caudaye nucleus, only the apparent dopamine receptor binding was altered with a significant 30% decrease in the Parkinsonian brain. Both cholinergic muscarinic and serotonin receptor binding were significantly altered in the putamen, the former increasing and the latter decreasing with respect to controls. In addition, ChAc activity was decreased in the putamen. In the globus pallidus, only ChAc activity was significantly changed, decreasing about 60%, with no change in neurotransmitter receptor binding. The results suggest that a progressive loss of dopaminergic receptors in the caudate nucleus may contribute to the decreased response of Parkinsonian patients to L-dopa and dopamine agonist therapy.
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DOI: 10.1016/0024-3205(77)90514-8
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No changes in any of these systems were observed in the frontal cortex. In the caudaye nucleus, only the apparent dopamine receptor binding was altered with a significant 30% decrease in the Parkinsonian brain. Both cholinergic muscarinic and serotonin receptor binding were significantly altered in the putamen, the former increasing and the latter decreasing with respect to controls. In addition, ChAc activity was decreased in the putamen. In the globus pallidus, only ChAc activity was significantly changed, decreasing about 60%, with no change in neurotransmitter receptor binding. The results suggest that a progressive loss of dopaminergic receptors in the caudate nucleus may contribute to the decreased response of Parkinsonian patients to L-dopa and dopamine agonist therapy.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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