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metadata.dc.type: Artigo de Periódico
Issue Date: Sep-1997
metadata.dc.creator: FRANCA, João Guedes da
NASCIMENTO, José Luiz Martins do
DINIZ, Cristovam Wanderley Picanço
QUARESMA, Juarez Antônio Simões
SILVA, Artur Luiz da Costa da
Title: NADPH-diaphorase activity in area 17 of the squirrel monkey visual cortex: neuropil pattern, cell morphology and laminar distribution
Citation: FRANCA, J.G. et al. NADPH-diaphorase activity in area 17 of the squirrel monkey visual cortex: neuropil pattern, cell morphology and laminar distribution. Brazilian Journal of Medical and Biological Research, Ribeirão Preto, v. 30, n. 9, p. 1093-1105, set. 1997. Disponível em: <>. Acesso em: 01 jun. 2011.
Abstract: We studied the distribution of NADPH-diaphorase activity in the visual cortex of normal adult New World monkeys (Saimiri sciureus) using the malic enzyme "indirect" method. NADPH-diaphorase neuropil activity had a heterogeneous distribution. In coronal sections, it had a clear laminar pattern that was coincident with Nissl-stained layers. In tangential sections, we observed blobs in supragranular layers of V1 and stripes throughout the entire V2. We quantified and compared the tangential distribution of NADPH-diaphorase and cytochrome oxidase blobs in adjacent sections of the supragranular layers of V1. Although their spatial distributions were rather similar, the two enzymes did not always overlap. The histochemical reaction also revealed two different types of stained cells: a slightly stained subpopulation and a subgroup of deeply stained neurons resembling a Golgi impregnation. These neurons were sparsely spined non-pyramidal cells. Their dendritic arbors were very well stained but their axons were not always evident. In the gray matter, heavily stained neurons showed different dendritic arbor morphologies. However, most of the strongly reactive cells lay in the subjacent white matter, where they presented a more homogenous morphology. Our results demonstrate that the pattern of NADPH-diaphorase activity is similar to that previously described in Old World monkeys.
Keywords: Primata
NADPH desidrogenase
Córtex visual
ISSN: 0100-879X
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - ICB

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