Cited by 26Sleep and Wakefulness ResearchNeuropeptides and Animal PhysiologyNeuroscience of respiration and sleep

Do enteric neurons make hypocretin?

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Baumann, Christian R., Clark, Erika L., Pedersen, Nigel P., Hecht, Jonathan L., Scammell, Thomas E.·2008·Regulatory Peptides

Abstract

Hypocretins (orexins) are wake-promoting neuropeptides produced by hypothalamic neurons. These hypocretin-producing cells are lost in people with narcolepsy, possibly due to an autoimmune attack. Prior studies described hypocretin neurons in the enteric nervous system, and these cells could be an additional target of an autoimmune process. We sought to determine whether enteric hypocretin neurons are lost in narcoleptic subjects. Even though we tried several methods (including whole mounts, sectioned tissue, pre-treatment of mice with colchicine, and the use of various primary antisera), we could not identify hypocretin-producing cells in enteric nervous tissue collected from mice or normal human subjects. These results raise doubts about whether enteric neurons produce hypocretin.

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Crossref · 10.1016/j.regpep.2007.11.006

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  • The specificity of the hypocretin-1 antiserum was tested and confirmed in hypothalamic tissue from hypocretin-knockout mice.

    “The specificity of the antiserum was tested and confirmed in hypothalamic tissue from hypocretin-knockout mice.12”

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Authors
Baumann, C. R., Clark, E. L., Pedersen, N. P., Hecht, J. L., & Scammell, T. E.
Affiliations
  • Beth Israel Deaconess Medical Center (US)
  • The University of Sydney (AU)
Corresponding author
Baumann, Christian R.
Venue
Regulatory Peptides
Publisher
Elsevier BV
Published
2008-04
Volume
147
Issue
1-3
Pages
1-3
ISSN
0167-0115 (ISSN-L)
OpenAlex
W2053667928
Cited by
26
References
12
Citations by year
2026: 1 · 2021: 2 · 2018: 1 · 2017: 1 · 2015: 1 · 2014: 1 · 2013: 3 · 2012: 1
FWCI
2.58
Type
journal article
Language
en
Open access
Locations
  • Regulatory Peptides (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (HL 60292, P50HL060292)
  • National Institute of Neurological Disorders and Stroke (R01NS055367, NS-055367)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
Keywords
orexin, enteric nervous system, enteric neurons, narcolepsy, hypothalamic neurons, autoimmune attack, colchicine
MeSH terms
Orexins, Animals, Humans, Immunohistochemistry, Male, Neurons, Neuropeptides, Enteric Nervous System, Mice, Knockout, Neurotransmitter Agents, Intracellular Signaling Peptides and Proteins, Mice

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