Banca de QUALIFICAÇÃO: RAISSA CLÁUDIA EUFRÁZIO DE OLIVEIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : RAISSA CLÁUDIA EUFRÁZIO DE OLIVEIRA
DATA : 17/08/2017
HORA: 15:00
LOCAL: Auditório da Pós-graduação em Biologia Estrutural
TÍTULO:

Cytoarchitecture and neurochemistry organization of the claustrum of a bat (Artibeus planirostris)

PALAVRAS-CHAVES:

Claustrum, Endopiriform, cytoarchitecture, Nissl, neurochemistry.

PÁGINAS: 50
GRANDE ÁREA: Ciências Biológicas
ÁREA: Morfologia
SUBÁREA: Anatomia
ESPECIALIDADE: Anatomia Animal
RESUMO:

The Claustrum (Cl) forms part of the nuclei of the base and is anatomically constituted of two main subdivisions: dorsal or insular Cl, and the medial ventral Cl located in the piriform cortex. The shape of the claustrum varies from species to species and its size increases in proportion to the volume of the neocortex. The Cl nucleus can play a key role in the processing of information in the brain, correlated to different activities developed by the activation of the sensory cortex that interconnects with different sensations. It is divided into three functional compartments: an anterodorsal connected to the somatosensory cortex and the motor cortex, a posterior dorsal connected to the visual cortex and a ventral area connected to the auditory cortex. While the exact function of Cl remains speculative, studies in rat brains have attributed a multimodal integrating role to it with respect to the connections attributed between the Cl and the cerebral cortex (cx), as various functions, such as somatosensory, Visual and auditory can be associated with this nucleus. In order to describe the cytoarchitecture and the neurochemistry of this nucleus, coronal sections of the Artibeus Planirostris bat brain, stained by the Nissl method and sections submitted to immunohistochemistry, were analyzed with calcium binding proteins Calbindina (CB), Calretinin (CR) and Parvalbumin (PV), in order to delimit and observe the expression of these proteins in the Cl, as well as in the nucleus Endopiriform (En), functionally associated with Cl. The CB and CR did not express immunoreactivity in the other subdivisions of Cl and En, whereas PV expression was perceived at the rostral level, more evident in Ventral Claustrum (VCl) and Dorsal Endopiriform (DEn), at medium level with more intensity In the VCl and at the caudal level, only in the lesser DEn and to a lesser intensity in the Ventral Endopiriform (VEn). Thus, in view of the strategic position of the CI, the associated functional and hodologic evidences in several studies, we believe that the study of the morphology of this area in bats can truly help elucidate the role of Cl in the nervous system and at the same time understand the pathways permeated by the evolution of subcortical nuclei.

MEMBROS DA BANCA:
Presidente - 4363493 - EXPEDITO SILVA DO NASCIMENTO JUNIOR
Interno - 3550124 - JUDNEY CLEY CAVALCANTE
Externo à Instituição - FRANCISCO GILBERTO OLIVEIRA - URCA