Evidence map›Paper›PMID 30136698›Full record

ArticleNeural regeneration research2018

Combined VEGF/PDGF improves olfactory regeneration after unilateral bulbectomy in mice.

Kate Beecher, Louise M Hafner, Jenny Ekberg, James A St John, Fatemeh Chehrehasa

Open access · goldAbstract read
In one paragraph

Article in Neural regeneration research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.4field-weighted citation impact, top 43% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
  2. Stem Cell Niches for Olfactory Regeneration and Their Therapeutic Applications.Journal of rhinology : official journal of the Korean Rhinologic Society · 2025
    Review
  3. Review
  4. Olfactory Effects of Chemotherapy Combined with Bevacizumab on Advanced-Stage Colorectal Cancer Patients: Chemotherapy and Olfaction.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2025
    Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. [Research progress in the treatment of sensorineural olfactory dysfunction].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2021
    Review
  11. Article
  12. 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

5 authors at 2 institutions in 1 country.

Kate BeecherSchool of Biomedical Sciences, Queensland University of Technology, Box 2434, QLD; Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith Institute for Drug Discovery, Griffith University, 170 Kessels Rd, Nathan, Australia.
Louise M HafnerSchool of Biomedical Sciences, Queensland University of Technology, Box 2434, QLD; Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Ave, Kelvin Grove, QLD, Australia.
Jenny EkbergClem Jones Centre for Neurobiology and Stem Cell Research, Griffith Institute for Drug Discovery, Griffith University, 170 Kessels Rd, Nathan; Menzies Health Institute Queensland, Griffith University, Southport 4222, QLD, Australia.
James A St JohnClem Jones Centre for Neurobiology and Stem Cell Research, Griffith Institute for Drug Discovery, Griffith University, 170 Kessels Rd, Nathan; Menzies Health Institute Queensland, Griffith University, Southport 4222, QLD, Australia.
Fatemeh ChehrehasaSchool of Biomedical Sciences, Queensland University of Technology, Box 2434; Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Ave, Kelvin Grove, QLD; Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith Institute for Drug Discovery, Griffith University, 170 Kessels Rd, Nathan, Australia.
Queensland University of Technology · AUGriffith University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The olfactory receptor neurons lining the nasal cavity have a remarkable capacity to regenerate throughout life. They are replenished continuously and their axons make new connections within the olfactory bulb. However, some factors such as head trauma and skull base surgery damage the olfactory nerve which lead to olfactory dysfunction. Losing the sense of smell has considerable effects on quality of life and life-expectancy. Therefore, there is a clear need to find a treatment for olfactory dysfunction. One such potential treatment is growth factor therapy which showed promising results in the spinal cord and brain injuries. The aim of the present study was to investigate whether combined delivery of two growth factors, vascular endothelial growth factor and platelet-derived growth factor treatment can improve the olfactory neurons regeneration in mice. The degeneration of the olfactory neurons was induced by unilateral bulbectomy. The treatment group received 1.5 µg of the combined growth factors intranasally, while the control injured group received saline. Growth factor treatment significantly increased the number of immature neurons at 5 and 7 days post injury and also the number of mature olfactory neurons at 10 and 14 days post bulbectomy. Regenerating axons extended over a larger volume in the operated cavity in the treatment group compared to control group at 14 days post bulbectomy. The growth factor treatment also significantly reduced astrocytic glia scar in the operated cavity. The results indicate that the combined delivery of the growth factors has the potential to improve olfactory dysfunction.

Indexed as

astrocytesaxonglial scargrowth factorsneuronolfactory bulb

Identifiers

PMID30136698
PMCPMC6128065
OpenAlexW2888237005

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.