Journal
ANATOMY AND EMBRYOLOGY
Volume 208, Issue 3, Pages 215-218Publisher
SPRINGER
DOI: 10.1007/s00429-004-0391-4
Keywords
primate brain; chimpanzee; gorilla; orangutan; brain modules
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Funding
- NIA NIH HHS [AG14308] Funding Source: Medline
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The present study was designed to document the architecture of neocortical astroglia in great apes, following glial fibrillary acidic protein immunohistochemistry. These anthropoid species were missing from previous phylogenetic descriptions of astroglia with interlaminar processes, a characteristic event of the cerebral cortex within the Primate Order. Pongo pygmaeus (orangutan), Gorilla gorilla (gorilla) and Pan troglodytes (chimpanzee) brain samples showed the typical palisade of interlaminar processes. Yet, those from Pan troglodytes were less uniform, showing extended cortical segments with astrocytic (syncytial-type) appearance, intermingled with segments expressing the interlaminar palisade. Present observations contribute to fill in missing data on the phylogenetic emergence of the cerebral cortex astroglial interlaminar processes. Considering the extreme consistency of the expression of astroglial interlaminar palisades among anthropoid species, this apparent variability among Pan individuals could be due to various possibilities, which are considered in this report.
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