Evidence map›Paper›PMID 32415789›Full record

ArticleThe Journal of physiology2020

Intermittent hypercapnic hypoxia induces respiratory hypersensitivity to fentanyl accompanied by tonic respiratory depression by endogenous opioids.

Allison D Brackley, Mary Ann Andrade, Glenn M Toney

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.7field-weighted citation impact, top 37% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
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  7. Sensitivity to remifentanil and its predictive factor in male patients with moderate to severe obstructive sleep apnea syndrome.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Allison D BrackleyDepartment of Cellular and Integrative Physiology, University of Texas Health San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, 78229.
Mary Ann AndradeDepartment of Cellular and Integrative Physiology, University of Texas Health San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, 78229.
Glenn M ToneyDepartment of Cellular and Integrative Physiology, University of Texas Health San Antonio, 7703 Floyd Curl Drive, San Antonio, TX, 78229.ORCID 0000-0003-3100-746X
The University of Texas Health Science Center at San Antonio · US

Funding

Neurohumoral Adaptations to Chronic Intermittent Hypoxia: Insights into the Pathophysiology of Sleep ApneaP01HL088052 · NHLBI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI CUNNINGHAM, J THOMAS · 2008 to 2019
$18.8M
PATHOBIOLOGY OF OCCLUSIVE VASCULAR DISEASET32HL007446 · NHLBI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Jean Chrisostome Bopassa · 1985 to 2026
$8.9M
Mechanisms of Synaptic Homeostasis Governing Pre-Sympathetic Neurons in the Hypothalamic Paraventricular NucleusR01NS115072 · NINDS · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI TONEY, GLENN M · 2020 to 2024
$2.4M
NHLBI NIH HHS P01 HL088052NHLBI NIH HHS T32 HL007446NHLBI NIH HHS T32 HL074466
6 · The paper itself

Abstract

key pointsSleep apnoea increases susceptibility to opioid-induced respiratory depression (OIRD). Endogenous opioids are implicated as a contributing factor in sleep apnoea. Rats exposed to sleep-phase chronic intermittent hypercapnic hypoxia (CIHH) for 7 days exhibited exaggerated OIRD to systemic fentanyl both while anaesthetized and artificially ventilated and while conscious and breathing spontaneously, implicating heightened CNS inhibitory efficacy of fentanyl. CIHH also induced tonic endogenous opioid suppression of neural inspiration. Sleep-related episodes of hypercapnic hypoxia, as in sleep apnoea, promote hypersensitivity to OIRD, with tonic respiratory depression by endogenous opioids implicated as a potential underlying cause. ABSTRACT: Sleep apnoea (SA) increases opioid-induced respiratory depression (OIRD) and lethality. To test the hypothesis that this results from chronic intermittent bouts of hypercapnic hypoxia (CIHH) accompanying SA, we compared OIRD across continuously normoxic control rats and rats exposed to sleep-phase (8 h/day) CIHH for 1 week. OIRD sensitivity was first assessed in anaesthetized (urethane/α-chloralose), vagotomized and artificially ventilated rats by recording phrenic nerve activity (PNA) to index neural inspiration and quantify PNA burst inhibition to graded doses (0, 2, 20, 50 μg kg

Indexed as

Respiratory HypersensitivityRespiratory InsufficiencyAnalgesics, OpioidAnimalsFentanylHypoxiaRatsRats, Sprague-DawleyAnalgesics, OpioidFentanylopioid induced respiratory depressionopioidssleep apnoea

Identifiers

PMID32415789
PMCPMC8162062
OpenAlexW3024631607

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.