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Updated: Jul 29, 2026
09:09
Dissecting the Non-human Primate Brain in Stereotaxic Space
Published on: July 16, 2009
Modular organization of the monkey presubiculum.
1Department of Neurology, College of Medicine, University of Iowa, Iowa City 52242, USA.
Experimental Brain Research
|September 8, 2001
Summary
This study identifies distinct molecularly defined patches in the monkey presubiculum using various stains. These patches offer a reliable marker for the presubiculum
Area of Science:
- Neuroscience
- Neuroanatomy
- Primate Brain Research
Background:
- Previous studies reported somatostatin and acetylcholinesterase (AChE) positive patches in monkey presubiculum.
- The functional significance of these patches remains largely unexplored.
Purpose of the Study:
- To investigate the presence and characteristics of patches in the presubiculum using a wider array of markers.
- To determine the spatial relationships between different molecularly defined patches.
- To assess the utility of these patches as anatomical landmarks.
Main Methods:
- Immunohistochemistry using markers for calcium-binding proteins: calbindin (CB), calretinin (CR), and parvalbumin (PV).
- Staining techniques including cytochrome oxidase (CO), myelin, and Nissl stains.
- Analysis of adjacent tissue sections and tangential sections of superficial layers.
Main Results:
- Identified patches in the presubiculum using CO, myelin, Nissl, CB, CR, and PV.
- Demonstrated differential expression of markers along lateral and longitudinal axes.
- Observed correspondence between CB+/CR+ patches and CO+/AChE+ patches, but not CB+ and CO+ patches.
- Distinguished patch-like patterns in layer I (CO, AChE) from reticular/lattice networks in layer II (CB, CR).
- Patches are approximately 100-300 micrometers in width.
Conclusions:
- The identified labeling patterns serve as a useful marker for the boundary between the presubiculum and retrosplenial cortex.
- The distinct modular organization within the presubiculum warrants further investigation into its functional implications.
- Further research is needed to correlate these anatomical findings with the functional organization of the presubiculum.
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