Evidence map›Paper›PMID 20580326›Full record

ArticleAutonomic neuroscience : basic & clinical2010

Retrograde release of endocannabinoids inhibits presynaptic GABA release to second-order baroreceptive neurons in NTS.

Chao-Yin Chen, Ann C Bonham, Caron Dean, Francis A Hopp, Cecilia J Hillard, Jeanne L Seagard

Abstract read
In one paragraph

Article in Autonomic neuroscience : basic & clinical, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Circulating Endocannabinoids: From Whence Do They Come and Where are They Going?Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Review
  5. Cannabinoids Occlude the HIV-1 Tat-Induced Decrease in GABAergic Neurotransmission in Prefrontal Cortex Slices.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2016
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. 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

6 authors at 5 institutions in 1 country.

Chao-Yin ChenDepartment of Pharmacology, University of California, Davis, CA 95616, USA. cych@ucdavis.edu
Ann C Bonham
Caron Dean
Francis A Hopp
Cecilia J Hillard
Jeanne L Seagard
Med Center · USMedical College of Wisconsin · USMilwaukee VA Medical Center · USUniversity of California, Davis · USUniversity of California System · US

Funding

BIOCHEMISTRY OF ANANDAMIDE, AN ENDOGENOUS CANNABINOIDR01DA009155 · NIDA · MEDICAL COLLEGE OF WISCONSIN · PI HILLARD, CECILIA J · 1996 to 2011
$3.4M
NIDA NIH HHS DA09155NIDA NIH HHS R01 DA009155
6 · The paper itself

Abstract

In prior studies, we found that activation of cannabinoid-1 receptors in the nucleus tractus solitarii (NTS) prolonged baroreflex-induced sympathoinhibition in rats. In many regions of the central nervous system, activation of cannabinoid-1 receptors presynaptically inhibits γ-aminobutyric acid (GABA) release, disinhibiting postsynaptic neurons. To determine if cannabinoid-1 receptor-mediated presynaptic inhibition of GABA release occurs in the NTS, we recorded miniature inhibitory postsynaptic currents in anatomically identified second-order baroreceptive NTS neurons in the presence of ionotropic glutamate receptor antagonists and tetrodotoxin. The cannabinoid-1 receptor agonists, WIN 55212-2 (0.3-30 μM) and methanandamide (3 μM) decreased the frequency of miniature inhibitory postsynaptic currents in a concentration-dependent manner, an effect that was blocked by the cannabinoid-1 receptor antagonist, N-(piperidin-1-yl)-5-(4-iodophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide (AM 251, 5 μM). Importantly, depolarization of second-order baroreceptive neurons decreased the frequency of miniature inhibitory postsynaptic currents; an effect which was blocked by the cannabinoid-1 receptor antagonist. The data indicate that depolarization of second-order baroreceptive NTS neurons induces endocannabinoid release from the neurons, leading to activation of presynaptic cannabinoid-1 receptors, inhibition of GABA release and subsequent enhanced baroreflex signaling in the NTS. The data suggest that endocannabinoid signaling in the NTS regulates short-term synaptic plasticity and provide a mechanism for endocannabinoid modulation of central baroreflex control.

Indexed as

EndocannabinoidsAnimalsBaroreflexCannabinoid Receptor ModulatorsExcitatory Amino Acid Antagonistsgamma-Aminobutyric AcidInhibitory Postsynaptic PotentialsMaleNeural InhibitionNeuronsPresynaptic TerminalsRatsRats, Sprague-DawleySodium Channel BlockersSolitary NucleusCannabinoid Receptor ModulatorsEndocannabinoidsExcitatory Amino Acid Antagonistsgamma-Aminobutyric AcidSodium Channel Blockers

Identifiers

PMID20580326
PMCPMC2976795
OpenAlexW1999873109

What OpenQuestion holds

Textmetadata
LicenceTDM
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.