Putative Adult Neurogenesis in Old World Parrots: The Congo African Grey Parrot (Psittacus erithacus ) and Timneh Grey Parrot (Psittacus timneh )

Frontiers in Neuroanatomy
Pedzisai MazengenyaAmadi O Ihunwo

Abstract

In the current study, we examined for the first time, the potential for adult neurogenesis throughout the brain of the Congo African grey parrot (Psittacus erithacus) and Timneh grey parrot (Psittacus timneh) using immunohistochemistry for the endogenous markers proliferating cell nuclear antigen (PCNA), which labels proliferating cells, and doublecortin (DCX), which stains immature and migrating neurons. A similar distribution of PCNA and DCX immunoreactivity was found throughout the brain of the Congo African grey and Timneh grey parrots, but minor differences were also observed. In both species of parrots, PCNA and DCX immunoreactivity was observed in the olfactory bulbs, subventricular zone of the lateral wall of the lateral ventricle, telencephalic subdivisions of the pallium and subpallium, diencephalon, mesencephalon and the rhombencephalon. The olfactory bulb and telencephalic subdivisions exhibited a higher density of both PCNA and DCX immunoreactive cells than any other brain region. DCX immunoreactive staining was stronger in the telencephalon than in the subtelencephalic structures. There was evidence of proliferative hot spots in the dorsal and ventral poles of the lateral ventricle in the Congo African grey parrot...Continue Reading

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Citations

Nov 26, 2018·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Pilani NkomozepiAmadi O Ihunwo
Mar 21, 2019·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Pilani NkomozepiAmadi O Ihunwo
Aug 9, 2020·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Pedzisai MazengenyaAmadi O Ihunwo
Jun 9, 2020·Frontiers in Psychology·Irene M Pepperberg
Feb 18, 2020·Brain Structure & Function·A Docampo-SearaEva Candal
Mar 16, 2021·The Journal of Comparative Neurology·Adriana DiezScott A MacDougall-Shackleton

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