Distribution of NADPH-diaphorase-positive neurons in the prefrontal cortex of the Cebus monkey

Brain Research
Roelf J Cruz-RizzoloCláudio A Casatti

Abstract

We studied the distribution of NADPH-diaphorase (NADPH-d) activity in the prefrontal cortex of normal adult Cebus apella monkeys using NADPH-d histochemical protocols. The following regions were studied: granular areas 46 and 12, dysgranular areas 9 and 13, and agranular areas 32 and Oap. NADPH-d-positive neurons were divided into two distinct types, both non-pyramidal. Type I neurons had a large soma diameter (17.24 +/- 1.73 microm) and were densely stained. More than 90% of these neurons were located in the subcortical white matter and infragranular layers. The remaining type I neurons were distributed in the supragranular layers. Type II neurons had a small, round or oval soma (9.83 +/- 1.03 microm), and their staining pattern varied markedly. Type II neurons were distributed throughout the cortex, with their greatest numerical density being observed in layers II and III. In granular areas, the number of type II neurons was up to 20 times that of type I neurons, but this proportion was smaller in agranular areas. Areal density of type II neurons was maximum in the supragranular layers of granular areas and minimum in agranular areas. Statistical analysis revealed that these areal differences were significant when comparing s...Continue Reading

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Citations

Oct 11, 2007·The Journal of Comparative Neurology·Ryohei Tomioka, Kathleen S Rockland
Mar 13, 2015·Frontiers in Neuroanatomy·Chao LiuXiao-Xin Yan
Mar 4, 2020·Biotechnic & Histochemistry : Official Publication of the Biological Stain Commission·Natália HvizdošováDarina Kluchová

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