Heterogeneous topographical distribution of the striatonigral and striatopallidal neurons in the matrix compartment of the cat caudate nucleus

The Journal of Comparative Neurology
M DesbanM L Kemel

Abstract

The topographical organization of the striatonigral projection was investigated in the cat by comparing the localization and the intensity of labelling of retrogradely labelled cells in the caudate nucleus following one or multiple injections of horseradish peroxidase-wheat germ agglutinin into the center or along the rostrocaudal axis of the substantia nigra pars reticulata. Second, the localizations of retrogradely labelled striatopallidal neurons and of clusters of aggregated striatonigral neurons (as outlined by the transport of 14C-material) were compared in cats that received four horseradish peroxidase-wheat germ agglutinin injections into the internal segment of the globus pallidus and three nigral injections of 14C-amino acids into the substantia nigra pars reticulata. Two types of striatonigral neurons located predominantly within the matrix compartment were identified: poorly collateralized aggregated cells distributed in clusters and more numerous collateralized cells distributed outside the clusters. In addition, two cell types were distinguished within each cluster of aggregated neurons. Those innervating the center of the substantia nigra pars reticulata were observed after a single nigral injection of the tracer...Continue Reading

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Citations

Jul 12, 2002·Movement Disorders : Official Journal of the Movement Disorder Society·Joanne E Nash, Jonathan M Brotchie
Jan 26, 2013·The Journal of Comparative Neurology·Alexander X TaiLawrence F Kromer
Oct 13, 2010·Movement Disorders : Official Journal of the Movement Disorder Society·Ruth DjaldettiEldad Melamed
Jul 31, 1998·Neuroscience and Behavioral Physiology·A I Gorbachevskaya

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