Evidence map›Paper›PMID 23302958›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2013

Medullary GABAergic mechanisms contribute to electroacupuncture modulation of cardiovascular depressor responses during gastric distention in rats.

Stephanie C Tjen-A-Looi, Zhi-Ling Guo, Min Li, John C Longhurst

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Review
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  12. Adenosine Receptor AFrontiers in neuroscience · 2019
    Article
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  19. Article
  20. GABA in nucleus tractus solitarius participates in electroacupuncture modulation of cardiopulmonary bradycardia reflex.American journal of physiology. Regulatory, integrative and comparative physiology · 2014
    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

4 authors at 2 institutions in 1 country.

Stephanie C Tjen-A-LooiSusan Samueli Center for Integrative Medicine, Department of Medicine, School of Medicine, University of California, Irvine, CA 92697, USA. stjenalo@uci.edu
Zhi-Ling Guo
Min Li
John C Longhurst
Samueli Institute · USUniversity of California, Irvine · US

Funding

Neural Substrates of Electroacupuncture in Cardiovascular ControlR01HL072125 · NHLBI · UNIVERSITY OF CALIFORNIA-IRVINE · PI MALIK, SHAISTA, TJEN-A-LOOI, STEPHANIE CHEE-YEE · 2003 to 2016
$5.3M
Mechanisms of CNS Autonomic Regulation by EAR01HL063313 · NHLBI · UNIVERSITY OF CALIFORNIA-IRVINE · PI LONGHURST, JOHN C · 2000 to 2013
$4.0M
NHLBI NIH HHS HL-63313NHLBI NIH HHS HL-72125NHLBI NIH HHS R01 HL063313NHLBI NIH HHS R01 HL072125
6 · The paper itself

Abstract

Electroacupuncture (EA) at P5-P6 acupoints overlying the median nerves typically reduces sympathoexcitatory blood pressure (BP) reflex responses in eucapnic rats. Gastric distention in hypercapnic acidotic rats, by activating both vagal and sympathetic afferents, decreases heart rate (HR) and BP through actions in the rostral ventrolateral medulla (rVLM) and nucleus ambiguus (NAmb), leading to sympathetic withdrawal and parasympathetic activation, respectively. A GABAA mechanism in the rVLM mediates the decreased sympathetic outflow. The present study investigated the hypothesis that EA modulates gastric distention-induced hemodynamic depressor and bradycardia responses through nuclei that process parasympathetic and sympathetic outflow. Anesthetized hypercapnic acidotic rats manifested repeatable decreases in BP and HR with gastric distention every 10 min. Bilateral EA at P5-P6 for 30 min reversed the hypotensive response from -26 ± 3 to -6 ± 1 mmHg and the bradycardia from -35 ± 11 to -10 ± 3 beats/min for a period that lasted more than 70 min. Immunohistochemistry and in situ hybridization to detect c-Fos protein and GAD 67 mRNA expression showed that GABAergic caudal ventral lateral medulla (cVLM) neurons were activated by EA. Glutamatergic antagonism of cVLM neurons with kynurenic acid reversed the actions of EA. Gabazine used to block GABAA receptors microinjected into the rVLM or cVLM reversed EA's action on both the reflex depressor and bradycardia responses. EA modulation of the decreased HR was inhibited by microinjection of gabazine into the NAmb. Thus, EA through GABAA receptor mechanisms in the rVLM, cVLM, and NAmb modulates gastric distention-induced reflex sympathoinhibition and vagal excitation.

Indexed as

Acidosis, RespiratoryAnimalsAutonomic Nervous SystemBlood PressureBradycardiaCardiovascular SystemElectroacupunctureGABA Antagonistsgamma-Aminobutyric AcidGlutamate DecarboxylaseGlutamic AcidHypercapniaMaleMedulla OblongataMicroinjectionsNeural InhibitionGABA Antagonistsgabazinegamma-Aminobutyric AcidGlutamate Decarboxylaseglutamate decarboxylase 1Glutamic AcidProto-Oncogene Proteins c-fosPyridazinesReceptors, GABA-A

Identifiers

PMID23302958
PMCPMC3602723
OpenAlexW2160640020

What OpenQuestion holds

Textmetadata
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.