Evidence map›Paper›PMID 23069761›Full record

ArticleNeuroscience2013

Mechanism of hyperphagia contributing to obesity in brain-derived neurotrophic factor knockout mice.

E A Fox, J E Biddinger, K R Jones, J McAdams, A Worman

Abstract read
In one paragraph

Article in Neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 38% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. NaMolecular metabolism · 2017
    Review
  10. Article
  11. Article
  12. A murine toolbox for imaging the neurovascular unit.Microcirculation (New York, N.Y. : 1994) · 2015
    Review
  13. Reduced intestinal brain-derived neurotrophic factor increases vagal sensory innervation of the intestine and enhances satiation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  14. Loss of neurotrophin-3 from smooth muscle disrupts vagal gastrointestinal afferent signaling and satiation.American journal of physiology. Regulatory, integrative and comparative physiology · 2013
    Article
  15. Vagal afferent controls of feeding: a possible role for gastrointestinal BDNF.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2013
    Review
  16. Article
  17. Review
  18. Review
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 2 institutions in 1 country.

E A FoxBehavioral Neurogenetics Laboratory, Department of Psychological Sciences, Purdue University, West Lafayette, IN 47907, USA. au_gc@psych.purdue.edu
J E Biddinger
K R Jones
J McAdams
A Worman
Purdue University West Lafayette · USUniversity of Colorado Boulder · US

Funding

Genetic remodeling of Vagal Afferent OrganizationR01NS046716 · NINDS · PURDUE UNIVERSITY WEST LAFAYETTE · PI FOX, EDWARD A · 2005 to 2009
$1.6M
NINDS NIH HHS R01 NS046716
6 · The paper itself

Abstract

Global-heterozygous and brain-specific homozygous knockouts (KOs) of brain-derived neurotrophic factor (BDNF) cause late- and early-onset obesity, respectively, both involving hyperphagia. Little is known about the mechanism underlying this hyperphagia or whether BDNF loss from peripheral tissues could contribute to overeating. Since global-homozygous BDNF-KO is perinatal lethal, a BDNF-KO that spared sufficient brainstem BDNF to support normal health was utilized to begin to address these issues. Meal pattern and microstructure analyses suggested overeating of BDNF-KO mice was mediated by deficits in both satiation and satiety that resulted in increased meal size and frequency and implicated a reduction of vagal signaling from the gut to the brain. Meal-induced c-Fos activation in the nucleus of the solitary tract, a more direct measure of vagal afferent signaling, however, was not decreased in BDNF-KO mice, and thus was not consistent with a vagal afferent role. Interestingly though, meal-induced c-Fos activation was increased in the dorsal motor nucleus of the vagus nerve (DMV) of BDNF-KO mice. This could imply that augmentation of vago-vagal digestive reflexes occurred (e.g., accommodation), which would support increased meal size and possibly increased meal number by reducing the increase in intragastric pressure produced by a given amount of ingesta. Additionally, vagal sensory neuron number in BDNF-KO mice was altered in a manner consistent with the increased meal-induced activation of the DMV. These results suggest reduced BDNF causes satiety and satiation deficits that support hyperphagia, possibly involving augmentation of vago-vagal reflexes mediated by central pathways or vagal afferents regulated by BDNF levels.

Indexed as

AnimalsBody CompositionBody WeightBrain-Derived Neurotrophic FactorEatingHyperphagiaMiceMice, KnockoutNeuronsObesityProto-Oncogene Proteins c-fosSolitary NucleusBrain-Derived Neurotrophic FactorProto-Oncogene Proteins c-fos

Identifiers

PMID23069761
PMCPMC3534937
OpenAlexW1969241316

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.