Evidence map›Paper›PMID 19138686›Full record

ArticleGastroenterology2009

Localized release of serotonin (5-hydroxytryptamine) by a fecal pellet regulates migrating motor complexes in murine colon.

Dante J Heredia, Eamonn J Dickson, Peter O Bayguinov, Grant W Hennig, Terence K Smith

Open access · bronzeAbstract read
In one paragraph

Article in Gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
5.9field-weighted citation impact, top 4% 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

73 citing papers in PubMed, 131 citations in OpenAlex.

  1. Trial
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  4. Unique properties of proximal and distal colon reflect distinct motor functions.American journal of physiology. Gastrointestinal and liver physiology · 2025
    Review
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13 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Dante J HerediaDepartment of Physiology & Cell Biology, University of Nevada School of Medicine, Reno, Nevada, USA.
Eamonn J Dickson
Peter O Bayguinov
Grant W Hennig
Terence K Smith
University of Nevada, Reno · US

Funding

Relex Pathways Controlling Intestinal MotilityR01DK045713 · NIDDK · UNIVERSITY OF NEVADA RENO · PI SMITH, TERENCE KEITH · 1999 to 2012
$3.1M
NIDDK NIH HHS R01 DK045713NIDDK NIH HHS R01 DK45713
6 · The paper itself

Abstract

BACKGROUND &

aimsThe colonic migrating motor complex (CMMC) is a motor pattern that regulates the movement of fecal matter through a rhythmic sequence of electrical activity and/or contractions along the large bowel. CMMCs have largely been studied in empty preparations; we investigated whether local reflexes generated by a fecal pellet modify the CMMC to initiate propulsive activity.

methodsRecordings of CMMCs were made from the isolated murine large bowel, with or without a fecal pellet. Transducers were placed along the colon to record muscle tension and propulsive force on the pellet and microelectrodes were used to record electrical activity from either side of a fecal pellet, circular muscle cells oral and anal of a pellet, and in colons without the mucosa.

resultsSpontaneous CMMCs propagated in both an oral or anal direction. When a pellet was inserted, CMMCs increased in frequency and propagated anally, exerting propulsive force on the pellet. The amplitude of slow waves increased during the CMMC. Localized mucosal stimulation/circumferential stretch evoked a CMMC, regardless of stimulus strength. The serotonin (5-hydroxytryptamine-3) receptor antagonist ondansetron reduced the amplitude of the CMMC, the propulsive force on the pellet, and the response to mucosal stroking, but increased the apparent conduction velocity of the CMMC. Removing the mucosa abolished spontaneous CMMCs, which still could be evoked by electrical stimulation.

conclusionsThe fecal pellet activates local mucosal reflexes, which release serotonin (5-hydroxytryptamine) from enterochromaffin cells, and stretch reflexes that determine the site of origin and propagation of the CMMC, facilitating propulsion.

Indexed as

FecesAnimalsColonEvoked PotentialsFemaleGastrointestinal MotilityIntestinal MucosaMaleMiceMice, Inbred C57BLMicroelectrodesMotor NeuronsMuscle ContractionMuscle, SmoothOndansetronSerotoninOndansetronSerotoninSerotonin Antagonists

Identifiers

PMID19138686
PMCPMC2982771
OpenAlexW2154627001

What OpenQuestion holds

Textmetadata
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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.