Evidence map›Paper›PMID 19703965›Full record

ArticleThe Journal of physiology2009

Learning to breathe: control of the inspiratory-expiratory phase transition shifts from sensory- to central-dominated during postnatal development in rats.

Mathias Dutschmann, Michael Mörschel, Ilya A Rybak, Thomas E Dick

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
1.7field-weighted citation impact, top 19% 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

37 citing papers in PubMed, 91 citations in OpenAlex.

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  15. Kölliker-Fuse nuclei regulate respiratory rhythm variability via a gain-control mechanism.American journal of physiology. Regulatory, integrative and comparative physiology · 2017
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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 4 institutions in 3 countries.

Mathias DutschmannInstitute for Membrane and Systems Biology, University of Leeds, Leeds LS2 9JT, UK. m.dutschmann@leeds.ac.uk
Michael Mörschel
Ilya A Rybak
Thomas E Dick
Case Western Reserve University · USDrexel University · USUniversity of Göttingen · DEUniversity of Leeds · GB

Funding

CRCNS: State dependent neural mechanisms for respiratory pattern generationR01NS057815 · NINDS · DREXEL UNIVERSITY · PI RYBAK, ILYA A · 2006 to 2010
$1.4M
Modeling of Pathogenic Breathing Pattern Dysregulation in Cardiopulmonary DiseaseR33HL087377 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI DICK, THOMAS E · 2008 to 2010
$961k
NHLBI NIH HHS R33 HL087377NHLBI NIH HHS R33HL087377NINDS NIH HHS R01 NS057815
6 · The paper itself

Abstract

The hallmark of the dynamic regulation of the transitions between inspiration and expiration is the timing of the inspiratory off-switch (IOS) mechanisms. IOS is mediated by pulmonary vagal afferent feedback (Breuer-Hering reflex) and by central interactions involving the Kölliker-Fuse nuclei (KFn). We hypothesized that the balance between these two mechanisms controlling IOS may change during postnatal development. We tested this hypothesis by comparing neural responses to repetitive rhythmic vagal stimulation, at a stimulation frequency that paces baseline breathing, using in situ perfused brainstem preparations of rats at different postnatal ages. At ages < P15 (P, postnatal days), phrenic nerve activity (PNA) was immediately paced and entrained to the afferent input and this pattern remained unchanged by repetitive stimulations, indicating that vagal input stereotypically dominated the control of IOS. In contrast, PNA entrainment at > P15 was initially insignificant, but increased after repetitive vagal stimulation or lung inflation. This progressive adaption of PNA to the pattern of the sensory input was accompanied by the emergence of anticipatory centrally mediated IOS preceding the stimulus trains. The anticipatory IOS was blocked by bilateral microinjections of NMDA receptor antagonists into the KFn and PNA was immediately paced and entrained, as it was seen at ages < P15. We conclude that as postnatal maturation advances, synaptic mechanisms involving NMDA receptors in the KFn can override the vagally evoked IOS after 'training' using repetitive stimulation trials. The anticipatory IOS may imply a hitherto undescribed form of pattern learning and recall in convergent sensory and central synaptic pathways that mediate IOS.

Indexed as

2-Amino-5-phosphonovalerateAnimalsExcitatory Amino Acid AntagonistsExhalationInhalationLearningNeural PathwaysPhrenic NerveRatsReceptors, N-Methyl-D-AspartateVagus Nerve2-Amino-5-phosphonovalerateExcitatory Amino Acid AntagonistsReceptors, N-Methyl-D-Aspartate

Identifiers

PMID19703965
PMCPMC2770157
OpenAlexW1488563269

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.