Evidence map›Paper›PMID 16100007›Full record

ArticleAmerican journal of respiratory and critical care medicine2005

REM sleep-like atonia of hypoglossal (XII) motoneurons is caused by loss of noradrenergic and serotonergic inputs.

Victor B Fenik, Richard O Davies, Leszek Kubin

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 2 pooled it
4.3field-weighted citation impact, top 6% 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

117 citing papers in PubMed, 2 syntheses or guidelines pooled it, 198 citations in OpenAlex.

  1. Pooled it
  2. Effect of norepinephrine reuptake inhibitors combined with antimuscarinic agents vs monotherapy for OSA: a systematic review and meta-analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
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  9. Melatonin and oxidative DNA damage in REM- and NREM-related obstructive sleep apnea: an exploratory analysis of sleep-stage phenotypes.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
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57 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Victor B FenikDepartment of Animal Biology, 209E/VET, School of Veterinary Medicine, University of Pennsylvania, 3800 Spruce Street, Philadelphia, Pennsylvania 19104-6046, USA.
Richard O Davies
Leszek Kubin
University of Pennsylvania · US

Funding

SCOR IN NEUROBIOLOGY SLEEP AND SLEEP APNEAP50HL060287 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI PACK, ALLAN IAN · 1998 to 2007
$17.2M
PREMOTOR CONTROL OF UPPER AIRWAY AND REM SLEEP ATONIAR01HL047600 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI KUBIN, LESZEK K · 1992 to 2018
$5.6M
NHLBI NIH HHS P50 HL060287NHLBI NIH HHS R01 HL047600
6 · The paper itself

Abstract

rationaleStudies of hypoglossal (XII) motoneurons that innervate the genioglossus muscle, an upper airway dilator, suggested that the suppression of upper airway motor tone during REM sleep is caused by withdrawal of excitation mediated by norepinephrine and serotonin.

objectivesOur objectives were to determine whether antagonism of aminergic receptors located in the XII nucleus region can abolish the REM sleep-like atonia of XII motoneurons, and whether both serotonergic and noradrenergic antagonists are required to achieve this effect.

methodsREM sleep-like episodes were elicited in anesthetized rats by pontine carbachol injections before and at various times after microinjection of prazosin and methysergide combined, or of only one of the drugs, into the XII nucleus. MEASUREMENTS AND MAIN

resultsSpontaneous XII nerve activity was significantly reduced, by 35 to 81%, by each antagonist alone and in combination, indicating that XII motoneurons were under both noradrenergic and serotonergic endogenous excitatory drives. During the 32 to 81 min after microinjections of both antagonists, pontine carbachol caused no depression of XII nerve activity, whereas other characteristic effects (activation of the hippocampal and cortical EEG, and slowing of the respiratory rate) remained intact. A partial recovery of the depressant effect of carbachol then occurred parallel to the recovery of spontaneous XII nerve activity from the depressant effect of the antagonists. Microinjections of either antagonist alone did not eliminate the depressant effect of carbachol.

conclusionsThe REM sleep-like depression of XII motoneuronal activity induced by pontine carbachol can be fully accounted for by the combined withdrawal of noradrenergic and serotonergic effects on XII motoneurons.

Indexed as

Adrenergic AntagonistsAnimalsCholinergic AntagonistsHypoglossal NerveMethysergideMotor NeuronsNorepinephrinePrazosinRatsRats, Sprague-DawleyReceptors, NeurotransmitterRespiratory MusclesSerotoninSleep, REMAdrenergic AntagonistsCholinergic AntagonistsMethysergideNorepinephrinePrazosinReceptors, NeurotransmitterSerotonin

Identifiers

PMID16100007
PMCPMC5222563
OpenAlexW2049813113

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.