Evidence map›Paper›PMID 26730405›Full record

ArticleeNeuro

Taste Bud-Derived BDNF Is Required to Maintain Normal Amounts of Innervation to Adult Taste Buds.

Lingbin Meng, Lisa Ohman-Gault, Liqun Ma, Robin F Krimm

Open access · goldAbstract read
In one paragraph

Article in eNeuro. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.9field-weighted citation impact, top 7% 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

32 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. Article
  3. Expression ofbioRxiv : the preprint server for biology · 2026
    Article
  4. Article
  5. Developing and regenerating a sense of taste.Current topics in developmental biology · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Taste arbor structural variability analyzed across taste regions.The Journal of comparative neurology · 2023
    Article
  12. Review
  13. Article
  14. The BDNF/TrkB Neurotrophin System in the Sensory Organs of Zebrafish.International journal of molecular sciences · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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

4 authors at 1 institution in 1 country.

Lingbin MengDepartment of Anatomical Sciences and Neurobiology, University of Louisville School of Medicine , Louisville, Kentucky 40292.
Lisa Ohman-GaultDepartment of Anatomical Sciences and Neurobiology, University of Louisville School of Medicine , Louisville, Kentucky 40292.
Liqun MaDepartment of Anatomical Sciences and Neurobiology, University of Louisville School of Medicine , Louisville, Kentucky 40292.
Robin F KrimmDepartment of Anatomical Sciences and Neurobiology, University of Louisville School of Medicine , Louisville, Kentucky 40292.
University of Louisville · US

Funding

Regulation of taste neuron morphology and functionR01DC007176 · NIDCD · UNIVERSITY OF LOUISVILLE · PI Robin Frances Krimm · 2005 to 2026
$8.1M
ONTOGENY OF CENTRAL NEURAL TASTE RESPONSESR01DC000407 · NIDCD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI ERISIR, ALEV · 1989 to 2022
$7.8M
Mechanisms of plasticity and repair after SCIP30GM103507 · NIGMS · UNIVERSITY OF LOUISVILLE · PI WHITTEMORE, SCOTT R · 2012 to 2015
$4.2M
Neural Plasticity in the Adult Gustatory SystemR01DC006938 · NIDCD · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI HILL, DAVID L · 2004 to 2014
$4.1M
NIDCD NIH HHS DC006938NIDCD NIH HHS DC007176NIDCD NIH HHS R01 DC000407NIDCD NIH HHS R01 DC006938NIDCD NIH HHS R01 DC007176NIGMS NIH HHS 8P30GM103507NIGMS NIH HHS P30 GM103507
6 · The paper itself

Abstract

Gustatory neurons transmit chemical information from taste receptor cells, which reside in taste buds in the oral cavity, to the brain. As adult taste receptor cells are renewed at a constant rate, nerve fibers must reconnect with new taste receptor cells as they arise. Therefore, the maintenance of gustatory innervation to the taste bud is an active process. Understanding how this process is regulated is a fundamental concern of gustatory system biology. We speculated that because brain-derived neurotrophic factor (BDNF) is required for taste bud innervation during development, it might function to maintain innervation during adulthood. If so, taste buds should lose innervation when Bdnf is deleted in adult mice. To test this idea, we first removed Bdnf from all cells in adulthood using transgenic mice with inducible CreERT2 under the control of the Ubiquitin promoter. When Bdnf was removed, approximately one-half of the innervation to taste buds was lost, and taste buds became smaller because of the loss of taste bud cells. Individual taste buds varied in the amount of innervation each lost, and those that lost the most innervation also lost the most taste bud cells. We then tested the idea that that the taste bud was the source of this BDNF by reducing Bdnf levels specifically in the lingual epithelium and taste buds. Taste buds were confirmed as the source of BDNF regulating innervation. We conclude that BDNF expressed in taste receptor cells is required to maintain normal levels of innervation in adulthood.

Indexed as

AgingAnimalsBrain-Derived Neurotrophic FactorEpitheliumMice, TransgenicNeuronsTasteTaste BudsTongueBrain-Derived Neurotrophic FactorBDNFgeniculate ganglionneurotrophinsplasticitytastetaste bud

Identifiers

PMID26730405
PMCPMC4697083
OpenAlexW2220438441

What OpenQuestion holds

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LicenceCC BY
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.