Publication Date:
1986-12-19
Description:
In postmortem studies of patients with schizophrenia, D2 dopamine receptors in the basal ganglia have been observed to be more numerous than in patients with no history of neurological or psychiatric disease. Because most patients with schizophrenia are treated with neuroleptic drugs that block D2 dopamine receptors in the caudate nucleus, it has been suggested that this increase in the number of receptors is a result of adaptation to these drugs rather than a biochemical abnormality intrinsic to schizophrenia. With positron emission tomography (PET), the D2 dopamine receptor density in the caudate nucleus of living human beings was measured in normal volunteers and in two groups of patients with schizophrenia--one group that had never been treated with neuroleptics and another group that had been treated with these drugs. D2 dopamine receptor densities in the caudate nucleus were higher in both groups of patients than in the normal volunteers. Thus, schizophrenia itself is associated with an increase in brain D2 dopamine receptor density.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong, D F -- Wagner, H N Jr -- Tune, L E -- Dannals, R F -- Pearlson, G D -- Links, J M -- Tamminga, C A -- Broussolle, E P -- Ravert, H T -- Wilson, A A -- Toung, J K -- Malat, J -- Williams, J A -- O'Tuama, L A -- Snyder, S H -- Kuhar, M J -- Gjedde, A -- 1RO1 53146/PHS HHS/ -- NS15080/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1558-63.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2878495" target="_blank"〉PubMed〈/a〉
Keywords:
Adult
;
Antipsychotic Agents/*therapeutic use
;
Caudate Nucleus/*metabolism
;
Haloperidol/therapeutic use
;
Humans
;
Kinetics
;
Receptors, Dopamine/*metabolism
;
Receptors, Dopamine D2
;
Schizophrenia/drug therapy/*metabolism
;
Spiperone/analogs & derivatives/metabolism
;
Tomography, Emission-Computed
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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