Evidence map›Paper›PMID 24356881›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2014

Brain-derived neurotrophic factor enhances cholinergic contraction of longitudinal muscle of rabbit intestine via activation of phospholipase C.

M Al-Qudah, C D Anderson, S Mahavadi, Z L Bradley, H I Akbarali, K S Murthy, J R Grider

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

28 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
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  12. BDNF rescues aging-associated internal anal sphincter dysfunction.American journal of physiology. Gastrointestinal and liver physiology · 2021
    Article
  13. Review
  14. Article
  15. Article
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  17. Article
  18. Article
  19. Neurotrophic factors in enteric physiology and pathophysiology.Neurogastroenterology and motility · 2018
    Review
  20. 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

7 authors at 2 institutions in 2 countries.

M Al-QudahDepartment of Physiology and Biophysics, School of Medicine, Virginia Commonwealth University, Richmond, Virginia;
C D Anderson
S Mahavadi
Z L Bradley
H I Akbarali
K S Murthy
J R Grider
Virginia Commonwealth University · USJordan University of Science and Technology · JO

Funding

HORMONAL INTEGRATION OF EXOCRINE AND ENDOCRINE ORGANSR01DK015564 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI KARNAM, S MURTHY · 1986 to 2020
$6.7M
ROLE OF GUT PEPTIDES IN INTESTINAL PERISTALSISR01DK034153 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI GRIDER, JOHN R · 1987 to 2019
$5.5M
Ionic currents in gastrointestinal smooth muscleR01DK046367 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI AKBARALI, HAMID I · 1999 to 2014
$3.8M
Role of Gut Peptides in Intestinal PeristalsisR56DK034153 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI GRIDER, JOHN R · 2009 to 2009
$351k
ROLE OF GUT PEPTIDES IN INTESTINAL PERISTALSISR23DK034153 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI GRIDER, JOHN R · 1986 to 1986
–
IONIC CURRENTS IN GASTROINTESTINAL MUSCULARIS MUCOSAR29DK046367 · NIDDK · BETH ISRAEL DEACONESS MEDICAL CENTER · PI AKBARALI, HAMID I · 1993 to 1998
–
HORMONAL INTEGRATION OF EXOCRINE AND ENDOCRINE ORGANSR37DK015564 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI MAKHLOUF, GABRIEL M. · 1988 to 1995
–
NIDDK NIH HHS DK15564NIDDK NIH HHS DK34153NIDDK NIH HHS DK46367NIDDK NIH HHS R01 DK034153NIDDK NIH HHS R01 DK046367
6 · The paper itself

Abstract

Brain-derived neurotrophic factor (BDNF) belongs to the neurotrophin family of proteins best known for its role in neuronal survival, differentiation, migration, and synaptic plasticity in central and peripheral neurons. BDNF is also widely expressed in nonneuronal tissues including the gastrointestinal tract. The role of BDNF in intestinal smooth muscle contractility is not well defined. The aim of this study was to identify the role of BDNF in carbachol (CCh)- and substance P (SP)-induced contraction of intestinal longitudinal smooth muscle. BDNF, selective tropomyosin-related kinase B (TrkB) receptor agonists, and pharmacological inhibitors of signaling pathways were examined for their effects on contraction of rabbit intestinal longitudinal muscle strips induced by CCh and SP. BDNF activation of intracellular signaling pathways was examined by Western blot in homogenates of muscle strips and isolated muscle cells. One-hour preincubation with BDNF enhanced intestinal muscle contraction induced by CCh but not by SP. The selective synthetic TrkB agonists LM 22A4 and 7,8-dihydroxyflavone produced similar effects to BDNF. The Trk antagonist K-252a, a TrkB antibody but not p75NTR antibody, blocked the effect of BDNF. The enhancement of CCh-induced contraction by BDNF was blocked by the phospholipase C (PLC) antagonist U73122, but not by ERK1/2 or Akt antagonists. Direct measurement in muscle strips and isolated muscle cells showed that BDNF caused phosphorylation of TrkB receptors and PLC-γ, but not ERK1/2 or Akt. We conclude that exogenous BDNF augments the CCh-induced contraction of longitudinal muscle from rabbit intestine by activating TrkB receptors and subsequent PLC activation.

Indexed as

AnimalsBrain-Derived Neurotrophic FactorCarbacholCholinergic AgonistsDose-Response Relationship, DrugEnzyme ActivationEnzyme InhibitorsJejunumMuscle ContractionMuscle, SmoothPhosphorylationRabbitsReceptor, trkBSignal TransductionSubstance PType C PhospholipasesBrain-Derived Neurotrophic FactorCarbacholCholinergic AgonistsEnzyme InhibitorsReceptor, trkBSubstance PType C Phospholipasesneurotrophinssmooth muscle contractionTrk receptors

Identifiers

PMID24356881
PMCPMC3920121
OpenAlexW2110048015

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.