Cited by 114Olfactory and Sensory Function StudiesNeuroscience and Neuropharmacology ResearchMemory and Neural Mechanisms

Segregated pathways to the vomeronasal amygdala: differential projections from the anterior and posterior divisions of the accessory olfactory bulb

Mohedano‐Moriano, Alicia, Pro‐Sistiaga, Palma, Úbeda‐Bañón, Isabel, Crespo, Carlos, Insausti, Ricardo, Martinez‐Marcos, Alino·2007·European Journal of Neuroscience

Abstract

Apically and basally located receptor neurons in the vomeronasal sensory epithelium express G(i2 alpha)- and G(o alpha)-proteins, V1R and V2R vomeronasal receptors, project to the anterior and posterior accessory olfactory bulb and respond to different stimuli, respectively. The extent to which secondary projections from the two portions of the accessory olfactory bulb are convergent in the vomeronasal amygdala is controversial. This issue is addressed by using anterograde and retrograde tract-tracing methods in rats including electron microscopy. Injections of dextran-amines, Fluoro Gold, cholera toxin-B subunit and Fast Blue were delivered to the anterior and posterior accessory olfactory bulb, bed nucleus of the stria terminalis, dorsal anterior amygdala and bed nucleus of the accessory olfactory tract/anteroventral medial amygdaloid nucleus. We have demonstrated that, apart from common vomeronasal-recipient areas, only the anterior accessory olfactory bulb projects to the bed nucleus of the stria terminalis, medial division, posteromedial part, and only the posterior accessory olfactory bulb projects to the dorsal anterior amygdala and deep cell layers of the bed nucleus of the accessory olfactory tract and the anteroventral medial amygdaloid nucleus. These results provide evidence that, excluding areas of convergence, the V1R and V2R vomeronasal pathways project to specific areas of the amygdala. These two vomeronasal subsystems are therefore anatomically and functionall…

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Crossref · 10.1111/j.1460-9568.2007.05472.x

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Authors
Mohedano‐Moriano, A., Pro‐Sistiaga, P., Úbeda‐Bañón, I., Crespo, C., Insausti, R., & Martinez‐Marcos, A.
Affiliations
  • University of Castilla-La Mancha (ES)
  • Universitat de València (ES)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2007-04
Volume
25
Issue
7
Pages
2065-2080
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W1991810452
Cited by
114
References
76
Citations by year
2026: 2 · 2025: 2 · 2024: 4 · 2023: 2 · 2022: 1 · 2021: 7 · 2020: 4 · 2019: 3 · 2018: 5 · 2017: 5 · 2016: 12 · 2015: 6 · 2014: 3 · 2013: 8 · 2012: 7
FWCI
5.38
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Universidad de Castilla-La Mancha
Topics
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
accessory olfactory bulb, vomeronasal receptors, bed nucleus of the stria terminalis, G protein-coupled receptors, axonal projections
MeSH terms
Afferent Pathways, Amygdala, Animals, Female, Histocytochemistry, Male, Neurons, Olfactory Bulb, Rats, Sprague-Dawley, Vomeronasal Organ, Rats

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