Evidence map›Paper›PMID 31485718›Full record

ArticleBrain structure & function2019

Two distinct GUCY2C circuits with PMV (hypothalamic) and SN/VTA (midbrain) origin.

D J Merlino, J R Barton, B A Charsar, M D Byrne, J A Rappaport, R J Smeyne, A C Lepore, A E Snook, S A Waldman

Open access · bronzeAbstract read
In one paragraph

Article in Brain structure & function, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 30 citations in OpenAlex.

  1. Nutritionally Responsive PMv DAT Neurons Are Dynamically Regulated During Pubertal Transition.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  2. Article
  3. Review
  4. Immunotherapy for precision medicine in colorectal cancer.Expert review of precision medicine and drug development · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Intestinal neuropod cell GUCY2C regulates visceral pain.The Journal of clinical investigation · 2023
    Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Review
  19. Review
  20. Article
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

9 authors at 1 institution in 1 country.

D J MerlinoDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, 1020 Locust Street, 368 JAH, Philadelphia, PA, 19107, USA.
J R BartonDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, 1020 Locust Street, 368 JAH, Philadelphia, PA, 19107, USA.
B A CharsarDepartment of Neuroscience, Vickie and Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA.
M D ByrneDepartment of Neuroscience, Vickie and Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA.
J A RappaportDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, 1020 Locust Street, 368 JAH, Philadelphia, PA, 19107, USA.
R J SmeyneDepartment of Neuroscience, Vickie and Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA.
A C LeporeDepartment of Neuroscience, Vickie and Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA.
A E SnookDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, 1020 Locust Street, 368 JAH, Philadelphia, PA, 19107, USA.
S A WaldmanDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, 1020 Locust Street, 368 JAH, Philadelphia, PA, 19107, USA. scott.waldman@jefferson.edu.
Thomas Jefferson University · US

Funding

X-Ray Crystallography and Macromolecular CharacterizationP30CA056036 · NCI · THOMAS JEFFERSON UNIVERSITY · PI Claudio Guillermo Giraudo · 1995 to 2026
$94.8M
Respiratory Motor Neuron Protection Following Cervical Spinal Cord InjuryR01NS079702 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI Angelo C. Lepore · 2013 to 2026
$6.0M
Guanylyl Cyclase C in Blood and Colorectal CancerR01CA095026 · NCI · THOMAS JEFFERSON UNIVERSITY · PI WALDMAN, SCOTT A · 2003 to 2008
$5.1M
Role of pathogenic Parkinsonian mutations in the seeding and propagation of alpha-synuclein in the CNSR01NS110084 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI SMEYNE, RICHARD J · 2019 to 2023
$2.1M
Guanylin GUCY2C axis in Colorectal Cancer InitiationR01CA204481 · NCI · THOMAS JEFFERSON UNIVERSITY · PI WALDMAN, SCOTT A · 2017 to 2021
$1.8M
(PQ1) GUCY2C hormone loss translates APC-Beta-catenin mutations into epithelial transformationR01CA206026 · NCI · THOMAS JEFFERSON UNIVERSITY · PI WALDMAN, SCOTT A · 2016 to 2020
$1.8M
Targeting chronic neuropathic pain after SCI using human iPS cell transplantationR56NS096028 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI LEPORE, ANGELO C · 2017 to 2017
$419k
Restoring Guanylin-Guanylate cyclase C Signaling to Prevent Colorectal CancerF30CA232469 · NCI · THOMAS JEFFERSON UNIVERSITY · PI RAPPAPORT, JEFFREY · 2018 to 2022
$188k
Promoting targeted reinnervation of phrenic motor neurons and restoration of respiratory function using cell-specific expression of BDNF after cervical spinal cord injuryF30NS103436 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI CHARSAR, BRITTANY · 2018 to 2020
$145k
Obesity Suppresses the GUCY2C endocrine Gut-Brain Axis Disrupting SatietyF30DK103492 · NIDDK · THOMAS JEFFERSON UNIVERSITY · PI MERLINO, DANTE · 2015 to 2016
$91k
NCI NIH HHS 1R01 CA204881NCI NIH HHS F30 CA232469NCI NIH HHS P30 CA056036NCI NIH HHS P30 CA56036NCI NIH HHS R01 CA095026NCI NIH HHS R01 CA204481NCI NIH HHS R01 CA206026NIDDK NIH HHS 1F30DK103492NIDDK NIH HHS F30 DK103492NINDS NIH HHS 1R01NS110084-01NINDS NIH HHS 1R56NS096028NINDS NIH HHS 2R01NS079702NINDS NIH HHS F30 NS103436NINDS NIH HHS F30NS103436NINDS NIH HHS R01 NS079702NINDS NIH HHS R01 NS110084NINDS NIH HHS R56 NS096028
6 · The paper itself

Abstract

Guanylyl cyclase C (GUCY2C) is the afferent central receptor in the gut-brain endocrine axis regulated by the anorexigenic intestinal hormone uroguanylin. GUCY2C mRNA and protein are produced in the hypothalamus, a major center regulating appetite and metabolic homeostasis. Further, GUCY2C mRNA and protein are expressed in the ventral midbrain, a principal structure regulating hedonic reward from behaviors including eating. While GUCY2C is expressed in hypothalamus and midbrain, its precise neuroanatomical organization and relationship with circuits regulating satiety remain unknown. Here, we reveal that hypothalamic GUCY2C mRNA is confined to the ventral premammillary nucleus (PMV), while in midbrain it is produced by neurons in the ventral tegmental area (VTA) and substantia nigra (SN). GUCY2C in the PMV is produced by 46% of neurons expressing anorexigenic leptin receptors, while in the VTA/SN it is produced in most tyrosine hydroxylase-immunoreactive neurons. In contrast to mRNA, GUCY2C protein is widely distributed throughout the brain in canonical sites of PMV and VTA/SN axonal projections. Selective stereotaxic ablation of PMV or VTA/SN neurons eliminated GUCY2C only in their respective canonical projection sites. Conversely, specific anterograde tracer analyses of PMV or VTA/SN neurons confirmed distinct GUCY2C-immunoreactive axons projecting to those canonical locations. Together, these findings reveal two discrete neuronal circuits expressing GUCY2C originating in the PMV in the hypothalamus and in the VTA/SN in midbrain, which separately project to other sites throughout the brain. They suggest a structural basis for a role for the GUCY2C-uroguanylin gut-brain endocrine axis in regulating homeostatic and behavioral components contributing to satiety.

Indexed as

AnimalsAxonsFemaleHypothalamus, PosteriorMaleMice, Inbred C57BLNeural PathwaysReceptors, EnterotoxinRNA, MessengerSubstantia NigraVentral Tegmental AreaGUCY2C protein, humanGucy2c protein, mouseReceptors, EnterotoxinRNA, MessengerGuanylyl cyclase CLeptin receptorObesitySubstantia nigraVentral premammillary nucleusVentral tegmental area

Identifiers

PMID31485718
PMCPMC6778723
OpenAlexW2972242955

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.