Evidence map›Paper›PMID 19622610›Full record

ArticleThe Journal of physiology2009

Calcium-activated chloride currents in olfactory sensory neurons from mice lacking bestrophin-2.

Simone Pifferi, Michele Dibattista, Claudia Sagheddu, Anna Boccaccio, Ahmed Al Qteishat, Filippo Ghirardi, Roberto Tirindelli, Anna Menini

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

26 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Isogenic iPSC-derivedFrontiers in neuroscience · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. The long tale of the calcium activated ClChannels (Austin, Tex.) · 2017
    Review
  10. Article
  11. Article
  12. Article
  13. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Simone PifferiInternational School for Advanced Studies, Scuola Internazionale Superiore di Studi Avanzati, SISSA, and Italian Institute of Technology, SISSA Unit, Trieste, Italy.
Michele Dibattista
Claudia Sagheddu
Anna Boccaccio
Ahmed Al Qteishat
Filippo Ghirardi
Roberto Tirindelli
Anna Menini
Scuola Internazionale Superiore di Studi Avanzati · ITItalian Institute of Technology · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Olfactory sensory neurons use a chloride-based signal amplification mechanism to detect odorants. The binding of odorants to receptors in the cilia of olfactory sensory neurons activates a transduction cascade that involves the opening of cyclic nucleotide-gated channels and the entry of Ca(2+) into the cilia. Ca(2+) activates a Cl(-) current that produces an efflux of Cl(-) ions and amplifies the depolarization. The molecular identity of Ca(2+)-activated Cl(-) channels is still elusive, although some bestrophins have been shown to function as Ca(2+)-activated Cl(-) channels when expressed in heterologous systems. In the olfactory epithelium, bestrophin-2 (Best2) has been indicated as a candidate for being a molecular component of the olfactory Ca(2+)-activated Cl(-) channel. In this study, we have analysed mice lacking Best2. We compared the electrophysiological responses of the olfactory epithelium to odorant stimulation, as well as the properties of Ca(2+)-activated Cl(-) currents in wild-type (WT) and knockout (KO) mice for Best2. Our results confirm that Best2 is expressed in the cilia of olfactory sensory neurons, while odorant responses and Ca(2+)-activated Cl(-) currents were not significantly different between WT and KO mice. Thus, Best2 does not appear to be the main molecular component of the olfactory channel. Further studies are required to determine the function of Best2 in the cilia of olfactory sensory neurons.

Indexed as

AnimalsBestrophinsCells, CulturedChloride ChannelsChloridesEye ProteinsIon Channel GatingMiceMice, KnockoutModels, NeurologicalNasal MucosaOlfactory Receptor NeuronsSmellBest2 protein, mouseBestrophinsChloride ChannelsChloridesEye Proteins

Identifiers

PMID19622610
PMCPMC2754364
OpenAlexW1549177160

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.