Cited by 125Regulation of Appetite and ObesityNeuroscience of respiration and sleepHeart Rate Variability and Autonomic Control

Conditional viral tracing reveals that steroidogenic factor 1-positive neurons of the dorsomedial subdivision of the ventromedial hypothalamus project to autonomic centers of the hypothalamus and hindbrain

Lindberg, Daniel, Chen, Peilin, Li, Chien·2013·Journal of Comparative Neurology

Abstract

Excitation of neurons in the ventromedial hypothalamus (VMH), especially those residing in the dorsomedial part of the nucleus (VMHdm), evokes sympathetic nervous system (SNS) outflow, modulating a number of physiological functions including feeding and blood glucose homeostasis. However, the anatomical basis of VMH-mediated SNS activation has thus far proved elusive. To understand how VMH neurons exercise output functions and describe an anatomical link between these neurons and the SNS, we identified downstream neural targets of the VMHdm by injecting an adenoviral vector encoding Cre recombinase (Cre)-regulated farnesylated green fluorescent protein (GFPf ) into the VMHdm of mice that express Cre in neurons expressing the VMH-specific transcription factor steroidogenic factor 1 (SF1). We confirm previously described projection patterns of the VMHdm and report the existence of a formerly unidentified projection pathway to a number of autonomic centers in the brainstem. These VMH efferents travel caudally through the periaqueductal gray (PAG) and then ventrally through the lateral lemniscus to the ventral surface of the brain, where they eventually reach caudal autonomic centers including the C1 catecholamine cell group of the rostral ventrolateral medulla (RVLM) and the nucleus of the solitary tract (NTS), where VMH efferents make close contacts with catecholaminergic neurons. We also found that VMHdm fibers reach a number of brainstem areas, including the retrotrapezoid nucleus (RTN), which are important in regulating respiration. Thus, the present study indicates that the VMH may modulate sympathetic and autonomic activity via synaptic contacts in the RTN, NTS, and RVLM and provides significant anatomical evidence to support a role of the VMH in respiratory regulation.

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Crossref · 10.1002/cne.23338

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Authors
Lindberg, D., Chen, P., & Li, C.
Affiliations
University of Virginia Health System (US)
Corresponding author
Li, Chien
Venue
Journal of Comparative Neurology
Publisher
Wiley
Published
2013-07-25
Volume
521
Issue
14
Pages
3167-3190
ISSN
  • 0021-9967 (ISSN-L)
  • 1096-9861
OpenAlex
W1630480449
Cited by
125
References
162
Citations by year
2026: 4 · 2025: 7 · 2024: 4 · 2023: 9 · 2022: 7 · 2021: 11 · 2020: 14 · 2019: 10 · 2018: 7 · 2017: 12 · 2016: 20 · 2015: 12 · 2014: 6 · 2013: 2
FWCI
7.18
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Comparative Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK078049)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
Keywords
ventromedial hypothalamus, steroidogenic factor 1, sympathetic nervous system, autonomic centers, periaqueductal gray, lateral lemniscus, rostral ventrolateral medulla, nucleus tractus solitarius, retrotrapezoid nucleus, respiratory control, catecholaminergic neurons, brainstem
MeSH terms
Animals, Hypothalamus, Luminescent Proteins, Mice, Transgenic, Melanocyte-Stimulating Hormones, Nerve Net, Neural Pathways, Neurons, Transduction, Genetic, Tyrosine 3-Monooxygenase, Autonomic Pathways, RNA, Untranslated, Vesicular Glutamate Transport Protein 2, Mice, Steroidogenic Factor 1

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