Ontogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei

The bed nucleus of the stria terminalis (BNST) is a telencephalic structure well-connected to hypothalamic regions known to control goal-oriented behaviors such as feeding. In particular, we showed that the dorsomedial division of the anterior BNST innervate neurons of the paraventricular (PVH), dor...

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Autores principales: Marc Lanzillo, Manon Gervais, Sophie Croizier
Formato: article
Lenguaje:EN
Publicado: Frontiers Media S.A. 2021
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PVH
DMH
ARH
Acceso en línea:https://doaj.org/article/7fd034e21778424a84ed9e24206509ce
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spelling oai:doaj.org-article:7fd034e21778424a84ed9e24206509ce2021-12-01T18:16:06ZOntogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei1662-453X10.3389/fnins.2021.748186https://doaj.org/article/7fd034e21778424a84ed9e24206509ce2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fnins.2021.748186/fullhttps://doaj.org/toc/1662-453XThe bed nucleus of the stria terminalis (BNST) is a telencephalic structure well-connected to hypothalamic regions known to control goal-oriented behaviors such as feeding. In particular, we showed that the dorsomedial division of the anterior BNST innervate neurons of the paraventricular (PVH), dorsomedial (DMH), and arcuate (ARH) hypothalamic nuclei as well as the lateral hypothalamic area (LHA). While the anatomy of these projections has been characterized in mice, their ontogeny has not been studied. In this study, we used the DiI-based tract tracing approach to study the development of BNST projections innervating several hypothalamic areas including the PVH, DMH, ARH, and LHA. These results indicate that projections from the dorsomedial division of the anterior BNST to hypothalamic nuclei are immature at birth and substantially reach the PVH, DMH, and the LHA at P10. In the ARH, only sparse fibers are observed at P10, but their density increased markedly between P12 and P14. Collectively, these findings provide new insight into the ontogeny of hypothalamic circuits, and highlight the importance of considering the developmental context as a direct modulator in their proper formation.Marc LanzilloManon GervaisSophie CroizierFrontiers Media S.A.articleDiI-based tract tracingontogenybed nuclei of the stria terminalisPVHDMHARHNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571ENFrontiers in Neuroscience, Vol 15 (2021)
institution DOAJ
collection DOAJ
language EN
topic DiI-based tract tracing
ontogeny
bed nuclei of the stria terminalis
PVH
DMH
ARH
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
spellingShingle DiI-based tract tracing
ontogeny
bed nuclei of the stria terminalis
PVH
DMH
ARH
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Marc Lanzillo
Manon Gervais
Sophie Croizier
Ontogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei
description The bed nucleus of the stria terminalis (BNST) is a telencephalic structure well-connected to hypothalamic regions known to control goal-oriented behaviors such as feeding. In particular, we showed that the dorsomedial division of the anterior BNST innervate neurons of the paraventricular (PVH), dorsomedial (DMH), and arcuate (ARH) hypothalamic nuclei as well as the lateral hypothalamic area (LHA). While the anatomy of these projections has been characterized in mice, their ontogeny has not been studied. In this study, we used the DiI-based tract tracing approach to study the development of BNST projections innervating several hypothalamic areas including the PVH, DMH, ARH, and LHA. These results indicate that projections from the dorsomedial division of the anterior BNST to hypothalamic nuclei are immature at birth and substantially reach the PVH, DMH, and the LHA at P10. In the ARH, only sparse fibers are observed at P10, but their density increased markedly between P12 and P14. Collectively, these findings provide new insight into the ontogeny of hypothalamic circuits, and highlight the importance of considering the developmental context as a direct modulator in their proper formation.
format article
author Marc Lanzillo
Manon Gervais
Sophie Croizier
author_facet Marc Lanzillo
Manon Gervais
Sophie Croizier
author_sort Marc Lanzillo
title Ontogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei
title_short Ontogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei
title_full Ontogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei
title_fullStr Ontogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei
title_full_unstemmed Ontogeny of the Projections From the Dorsomedial Division of the Anterior Bed Nucleus of the Stria Terminalis to Hypothalamic Nuclei
title_sort ontogeny of the projections from the dorsomedial division of the anterior bed nucleus of the stria terminalis to hypothalamic nuclei
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/7fd034e21778424a84ed9e24206509ce
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