Evidence map›Paper›PMID 23462990›Full record

ArticleNature communications2013

Human hypocretin and melanin-concentrating hormone levels are linked to emotion and social interaction.

Ashley M Blouin, Itzhak Fried, Charles L Wilson, Richard J Staba, Eric J Behnke, Hoa A Lam, Nigel T Maidment, Karl Æ Karlsson, Jennifer L Lapierre, Jerome M Siegel

Open access · bronzeAbstract read
In one paragraph

Article in Nature communications, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 131 papers.

0numbers the graph read from it
0cells of the map it votes in
131citing papers in PubMed
13.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

131 citing papers in PubMed, 247 citations in OpenAlex.

  1. Trial
  2. Observational
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Narcolepsy and rapid eye movement sleep.Journal of sleep research · 2025
    Review
  11. Article
  12. Neuropeptidergic systems in psychiatric disorders.Frontiers in endocrinology · 2025
    Review
  13. The Role and Mechanisms of the Hypocretin System in Zebrafish (International journal of molecular sciences · 2024
    Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Exploratory Rearing Is Governed by Hypothalamic Melanin-Concentrating Hormone Neurons According to Locus Ceruleus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  19. Article
  20. Orexins/Hypocretins: Gatekeepers of Social Interaction and Motivation.International journal of molecular sciences · 2024
    Review

71 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Ashley M BlouinDepartment of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles, Los Angeles, California 90095, USA.
Itzhak Fried
Charles L Wilson
Richard J Staba
Eric J Behnke
Hoa A Lam
Nigel T Maidment
Karl Æ Karlsson
Jennifer L Lapierre
Jerome M Siegel
University of California, Los Angeles · USNeurobehavioral Systems · USReykjavík University · ISVA Greater Los Angeles Healthcare System · US

Funding

SYSTEMS PATHOPHYSIOLOGYP01NS002808 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ENGEL, JEROME NONE · 1985 to 2010
$13.5M
Hypocretin Release in Disease States and BehaviorR01MH064109 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SIEGEL, JEROME M · 2001 to 2016
$7.7M
IN VIVO STUDIES OF THE EPILEPTIC HIPPOCAMPUSR01NS033310 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JEROME NONE ENGEL, Richard Staba · 1994 to 2026
$7.5M
Role of hypocretin in opiate addiction and withdrawalR01DA034748 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SIEGEL, JEROME M · 2014 to 2024
$6.3M
In Vivo Studies of the Epileptic HippocampusRF1NS033310 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ENGEL, JEROME NONE, STABA, RICHARD · 2023 to 2023
$3.6M
IN VIVO STUDIES OF THE EPILEPTIC HIPPOCAMPUSR37NS033310 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ENGEL, JEROME NONE · 2004 to 2010
$3.2M
IMMUNOLOGICAL FACTORS IN NARCOLEPSYR37NS014610 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SIEGEL, JEROME M · 1999 to 2005
$2.0M
RETICULAR FORMATION NEURONS: BEHAVIORAL STUDIESR01NS014610 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SIEGEL, JEROME M · 1985 to 2013
$1.4M
What Causes Human Narcolepsy?I01BX001753 · VA · VA GREATER LOS ANGELES HEALTHCARE SYSTEM · PI SIEGEL, JEROME M · 2013 to 2020
–
BLRD VA I01 BX001753BLRD VA IK6 BX005245NIDA NIH HHS R01 DA034748NIMH NIH HHS MH064109NIMH NIH HHS R01 MH064109NINDS NIH HHS NS02808NINDS NIH HHS NS14610NINDS NIH HHS NS33310NINDS NIH HHS P01 NS002808NINDS NIH HHS R01 NS014610NINDS NIH HHS R01 NS033310NINDS NIH HHS R37 NS014610NINDS NIH HHS R37 NS033310NINDS NIH HHS RF1 NS033310
6 · The paper itself

Abstract

The neurochemical changes underlying human emotions and social behaviour are largely unknown. Here we report on the changes in the levels of two hypothalamic neuropeptides, hypocretin-1 and melanin-concentrating hormone, measured in the human amygdala. We show that hypocretin-1 levels are maximal during positive emotion, social interaction and anger, behaviours that induce cataplexy in human narcoleptics. In contrast, melanin-concentrating hormone levels are minimal during social interaction, but are increased after eating. Both peptides are at minimal levels during periods of postoperative pain despite high levels of arousal. Melanin-concentrating hormone levels increase at sleep onset, consistent with a role in sleep induction, whereas hypocretin-1 levels increase at wake onset, consistent with a role in wake induction. Levels of these two peptides in humans are not simply linked to arousal, but rather to specific emotions and state transitions. Other arousal systems may be similarly emotionally specialized.

Indexed as

Interpersonal RelationsAdultAmygdalaAnimalsBehaviorElectrodes, ImplantedEmotionsFemaleHumansHypothalamic HormonesHypothalamusIntracellular Signaling Peptides and ProteinsMaleMelaninsMicrodialysisMiddle AgedHCRT protein, humanHypothalamic HormonesIntracellular Signaling Peptides and Proteinsmelanin-concentrating hormoneMelaninsNeuropeptidesOrexinsPituitary Hormones

Identifiers

PMID23462990
PMCPMC3595130
OpenAlexW2135074291

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.