Evidence map›Paper›PMID 22796630›Full record

ArticleRespiratory physiology & neurobiology2012

Activation of opioid μ-receptors, but not δ- or κ-receptors, switches pulmonary C-fiber-mediated rapid shallow breathing into an apnea in anesthetized rats.

Zhenxiong Zhang, Cancan Zhang, Moxi Zhou, Fadi Xu

Abstract read
In one paragraph

Article in Respiratory physiology & neurobiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 33% 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

13 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Roles of peripheral and central µAmerican journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Dynamic Rhythmogenic Network States Drive Differential Opioid Responses in theThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  9. Review
  10. Prolongation of bronchopulmonary C-fiber-mediated apnea by prenatal nicotinic exposure in rat pups: role of 5-HTFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  11. Article
  12. A method of nodose ganglia injection in Sprague-Dawley rat.Journal of visualized experiments : JoVE · 2014
    Article
  13. 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 1 institution in 1 country.

Zhenxiong ZhangPathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, NM 87108, United States.
Cancan Zhang
Moxi Zhou
Fadi Xu
Lovelace Respiratory Research Institute · US

Funding

Effect of Prenatal Nicotinic Exposure on Control of Hypoxic Ventilatory ResponseR01HL107462 · NHLBI · LOVELACE BIOMEDICAL & ENVIRONMENTAL RESEARCH INSTITUTE · PI XU, FADI · 2011 to 2014
$1.7M
NHLBI NIH HHS R01 HL107462
6 · The paper itself

Abstract

Rapid shallow breathing (RSB) is mainly mediated by bronchopulmonary C-fibers (PCFs). We asked whether this RSB could be modulated by opioids. In anesthetized rats right atrial bolus injection of phenylbiguanide (PBG) to evoke RSB was repeated after: (1) intravenously giving fentanyl (μ-receptor agonist), DPDPE (δ-receptor agonist), or U-50488H (κ-receptor agonist); (2) fentanyl (iv) following naloxone methiodide, a peripheral opioid receptor antagonist; (3) bilateral microinjection of fentanyl into the nodose ganglia; (4) fentanyl (iv) with pre-blocking histamine H(1) and H(2) receptors by diphenhydramine and ranitidine. Systemic fentanyl challenge, but not DPDPE or U-50488H, switched the PBG-induced RSB to a long lasting apnea. This switch was blocked by naloxone methiodide rather than diphenhydramine and ranitidine. After microinjecting fentanyl into the nodose ganglia, PBG also produced an apnea. Our results suggest that activating μ-receptors is capable of turning the PCF-mediated RSB into an apnea, at least partly, via facilitating PCFs' activity and this switching effect appears independent of the released histamine.

Indexed as

AnesthesiaAnimalsApneaMaleNerve Fibers, UnmyelinatedRatsRats, Sprague-DawleyReceptors, Opioid, deltaReceptors, Opioid, kappaReceptors, Opioid, muRespiratory MechanicsReceptors, Opioid, deltaReceptors, Opioid, kappaReceptors, Opioid, mu

Identifiers

PMID22796630
PMCPMC3428499
OpenAlexW2059113766

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.