{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T19:13:56Z","timestamp":1792178036790,"version":"4.4.0"},"reference-count":57,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2004,10,12]],"date-time":"2004-10-12T00:00:00Z","timestamp":1097539200000},"content-version":"vor","delay-in-days":3572,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Synapse"],"published-print":{"date-parts":[[1995,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The administration of the neurotoxin 1\u2010methyl\u20104\u2010phenyl\u20101,2,3,6\u2010tetrahydropyridine (MPTP) to adult cats severely disrupts the dopaminergic innervation of the striatum. Animals display a parkinson\u2010like syndrome, consisting of akinesia, bradykinesia, postural instability, and rigidity, which spontaneously recovers by 4\u20136 weeks after the last administration of MPTP. In this study we used quantitative receptor autoradiography to examine changes in DA uptake sites and DA receptors in the basal ganglia of normal, and symptomatic and recovered MPTP\u2010treated cats.<\/jats:p><jats:p>Consistent with the destruction of the nigrostriatal DA pathway, there was a severe loss of DA uptake sites, labeled with [<jats:sup>3<\/jats:sup>H]\u2010mazindol, in the caudate nucleus (64\u201382%), nucleus accumbens (44%), putamen (63%), and substantia nigra pars compacta (SNc, 53%) of symptomatic cats. Following behavioral recovery, there were no significant changes in DA uptake site density. Significant increases of [<jats:sup>3<\/jats:sup>H]\u2010SCH 23390 binding to D1 DA receptors were observed in the dorsal caudate (&gt;24%; P &lt; 0.05) of symptomatic cats and in all regions of the caudate\u2010putamen (&gt;30%; P &lt; 0.05) of recovered animals. [<jats:sup>3<\/jats:sup>H]\u2010SCH 23390 binding in tree substantia nigra pars reticulata was half of that in the striatum and showed no changes in symptomatic or recovered animals. No alterations in the binding of [<jats:sup>125<\/jats:sup>1]\u2010epidepride to D2 receptors was observed in any region of the striatum in either, symptomatic or recovered animals. [<jats:sup>125<\/jats:sup>1]\u2010Epidepride binding in the SNc was decreased by &gt;36% (P &lt; 0.05) following MPTP treatment.<\/jats:p><jats:p>These data show that cats made parkinsonian by MPTP exposure have a significant decrease in the number of DA reuptake sites throughout the striatum and that recovery of sensorimotor function in these animals is not correlated with an increase in the number of striatal reuptake sites. Behavioral recovery, however, does seem to be correlated with a general elevation of Dl receptors throughout the striatal complex. The present data also show that direct correlations between changes in DA receptor regulation after a large DA depleting lesion and behavioral deficits or recovery from those deficits are difficult and that the relationships between DA receptors\/transporters and behavior require further study. \u00a9 1995 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/syn.890190107","type":"journal-article","created":{"date-parts":[[2004,12,31]],"date-time":"2004-12-31T22:22:53Z","timestamp":1104531773000},"page":"46-55","source":"Crossref","is-referenced-by-count":24,"title":["Alterations in dopamine uptake sites and D1 and D2 receptors in cats symptomatic for and recovered from experimental parkinsonism"],"prefix":"10.1002","volume":"19","author":[{"given":"Paul A.","family":"Frohna","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David S.","family":"Rothblat","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeffrey N.","family":"Joyce","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jay S.","family":"Schneider","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2004,10,12]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0006-8993(91)90960-4"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/0006-8993(92)91584-2"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.35.7.949"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/0306-4522(88)90188-1"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/cne.902680113"},{"key":"e_1_2_1_7_1","first-page":"275","article-title":"Differential effect of selective D\u20101 and D\u20102 dopamine receptor agonists on levodopa\u2010induced dyskinesia in 1\u2010methyl\u20104\u2010phenyl\u20101,2,3,6\u2010tetrahydropyridine\u2010exposed monkeys","volume":"267","author":"Blanchet P.","year":"1993","journal-title":"J. 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