NDLI: Two types of periglomerular cells in the olfactory bulb of the macaque monkey (Macaca fascicularis)

Content Provider	Springer Nature Link
Author	Liberia, Teresa Blasco Ibáñez, José Miguel Nácher, Juan Varea, Emilio Lanciego, José Luis Crespo, Carlos
Copyright Year	2012
Abstract	The olfactory bulb (OB) of mammals is the brain region that receives the sensory information coming from the olfactory epithelium. The entrance of the olfactory information occurs in spherical structures of neuropil named olfactory glomeruli and is modulated by a population of interneurons known as periglomerular cells (PG). It has been demonstrated that there are two types of PG in the OB of some macrosmatic mammals, including rats and mice. Type 1 PG (PG-1) receive synapses from the olfactory nerve, whereas type 2 PG (PG-2) do not receive synapses from the olfactory axons. To date, the presence of the two types of PG has not been investigated in microsmatic mammals. In this context, we analyze the presence of PG-1 and PG-2 in the OB of the long-tailed macaque (Macaca fascicularis). For that, we used the enzyme tyrosine hydroxylase, the neuronal isoform of the enzyme nitric oxide synthase and the calcium-binding proteins calbindin D-28k and calretinin as neurochemical markers. Our results demonstrate that the OB of the macaque contains PG-1 and PG-2. A subpopulation of PG-1 expresses tyrosine hydroxylase and another expresses the neuronal isoform of nitric oxide synthase. In addition, a subpopulation of PG-2 expresses calbindin D-28k and another expresses calretinin. Double immunofluorescence demonstrates that there is no colocalization of two markers in the same PG. These results mimic those found in macrosmatic animals. The presence of two types of PG in the glomerular circuits seems to be a key principle for the organization of the OB of mammals.
Starting Page	873
Ending Page	887
Page Count	15
File Format	PDF
ISSN	18632653
Journal	Anatomy and Embryology
Volume Number	218
Issue Number	4
e-ISSN	18632661
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-06-12
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Olfaction Interneurons Olfactory bulb Periglomerular cells Monkey Neurosciences Cell Biology Neurology
Content Type	Text
Resource Type	Article
Subject	Neuroscience Anatomy Histology

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