Evidence map›Paper›PMID 27280429›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2016

Components of the cannabinoid system in the dorsal periaqueductal gray are related to resting heart rate.

Caron Dean, Cecilia J Hillard, Jeanne L Seagard, Francis A Hopp, Quinn H Hogan

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

7 citing papers in PubMed, 11 citations in OpenAlex.

  1. Metabolism-Mediated Regulation of Brain-Heart Interactions.International journal of molecular sciences · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Functional Involvement of Human Periaqueductal Gray and Other Midbrain Nuclei in Cognitive Control.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  6. Role of endocannabinoids in the hippocampus and amygdala in emotional memory and plasticity.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  7. 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

5 authors at 2 institutions in 1 country.

Caron DeanDepartment of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin; and Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin cdean@mcw.edu.
Cecilia J HillardDepartment of Pharmacology, Medical College of Wisconsin, Milwaukee, Wisconsin; and.
Jeanne L SeagardDepartment of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin; and Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin.
Francis A HoppZablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin.
Quinn H HoganDepartment of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin; and Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin.
Milwaukee VA Medical Center · USMedical College of Wisconsin · US

Funding

Cannabinoid Signaling in the dPAG: Specific Analgesic and Autonomic FunctionsI01BX001863 · VA · CLEMENT J. ZABLOCKI VA MEDICAL CENTER · PI HOGAN, QUINN H · 2014 to 2017
–
BLRD VA I01 BX001863
6 · The paper itself

Abstract

The present study was undertaken to examine whether variations in endocannabinoid signaling in the dorsal periaqueductal gray (dPAG) are associated with baseline autonomic nerve activity, heart rate, and blood pressure. Blood pressure was recorded telemetrically in rats, and heart rate and power spectral analysis of heart rate variability were determined. Natural variations from animal to animal provided a range of baseline values for analysis. Transcript levels of endocannabinoid signaling components in the dPAG were analyzed, and endocannabinoid content and catabolic enzyme activity were measured. Higher baseline heart rate was associated with increased anandamide content and with decreased activity of the anandamide-hydrolyzing enzyme, fatty acid amide hydrolase (FAAH), and it was negatively correlated with transcript levels of both FAAH and monoacylglycerol lipase (MAGL), a catabolic enzyme for 2-arachidonoylglycerol (2-AG). Autonomic tone and heart rate, but not blood pressure, were correlated to levels of FAAH mRNA. In accordance with these data, exogenous anandamide in the dPAG of anesthetized rats increased heart rate. These data indicate that in the dPAG, anandamide, a FAAH-regulated lipid, contributes to regulation of baseline heart rate through influences on autonomic outflow.

Indexed as

AnimalsAutonomic Nervous SystemBlood PressureEndocannabinoidsFeedback, PhysiologicalHeart RateMalePeriaqueductal GrayRatsRats, Sprague-DawleyRestEndocannabinoidsdorsal periaqueductal grayendocannabinoidsheart rateratsympathetic nerve activity

Identifiers

PMID27280429
PMCPMC4982395
OpenAlexW2415030877

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.