Evidence map›Paper›PMID 20235094›Full record

ArticleThe Journal of comparative neurology2010

Chemical stress induces the unfolded protein response in olfactory sensory neurons.

Neeraja Sammeta, Timothy S McClintock

Abstract read
In one paragraph

Article in The Journal of comparative neurology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

20 citing papers in PubMed, 27 citations in OpenAlex.

  1. Therapeutic Effects ofLife (Basel, Switzerland) · 2026
    Article
  2. Article
  3. Identifying Key Regulators in Odorant Receptor Trafficking.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Genomics of mature and immature olfactory sensory neurons.The Journal of comparative neurology · 2012
    Article
  20. Neuronal responses to physiological stress.Frontiers in genetics · 2012
    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

2 authors at 1 institution in 1 country.

Neeraja SammetaDepartment of Physiology, University of Kentucky, Lexington, Kentucky 40536-0298, USA.
Timothy S McClintock
University of Kentucky · US

Funding

FUNCTIONAL DOMAINS AND EXPRESSION OF OLFACTORY RECEPTORSR01DC002736 · NIDCD · UNIVERSITY OF KENTUCKY · PI MCCLINTOCK, TIMOTHY S · 1995 to 2010
$3.1M
NIDCD NIH HHS R01 DC002736
6 · The paper itself

Abstract

More than any other neuron, olfactory sensory neurons are exposed to environmental insults. Surprisingly, their only documented response to damaging stress is apoptosis and subsequent replacement by new neurons. However, they expressed unfolded protein response genes, a transcriptionally regulated defense mechanism activated by many types of insults. The unfolded protein response transcripts Xbp1, spliced Xbp1, Chop (Ddit3), and BiP (Hspa5) were decreased when external access of stressors was reduced by blocking a nostril (naris occlusion). These transcripts and Nrf2 (Nfe2l2) were increased by systemic application of tunicamycin or the selective olfactotoxic chemical methimazole. Methimazole's effects overcame naris occlusion, and the unfolded protein response was independent of odor-evoked neuronal activity. Chemical stress is therefore a major and chronic activator of the unfolded protein response in olfactory sensory neurons. Stress-dependent repression of the antiapoptotic gene Bcl2 was absent, however, suggesting a mechanism for disconnecting the UPR from apoptosis and tolerating a chronic unfolded protein response. Environmental stressors also affect both the sustentacular cells that support the neurons and the respiratory epithelia, because naris occlusion decreased expression of the xenobiotic chemical transformation enzyme Cyp2a5 in sustentacular cells, and both naris occlusion and methimazole altered the abundance of the antibacterial lectin Reg3g in respiratory epithelia.

Indexed as

Olfactory Receptor NeuronsSensory Receptor CellsStress, PhysiologicalAnimalsAnti-Bacterial AgentsAntithyroid AgentsEndoplasmic Reticulum Chaperone BiPGene Expression RegulationMethimazoleMiceMice, Inbred C57BLOlfactory MucosaOlfactory PathwaysSensory DeprivationTunicamycinUnfolded Protein ResponseAnti-Bacterial AgentsAntithyroid AgentsEndoplasmic Reticulum Chaperone BiPHspa5 protein, mouseMethimazoleTunicamycin

Identifiers

PMID20235094
PMCPMC2918880
OpenAlexW1970727134

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.