Evidence map›Paper›PMID 35004347›Full record

ArticleFrontiers in cellular and infection microbiology2021

Leukotriene B4 Is a Major Determinant of Leukocyte Recruitment During Otitis Media.

Kyung Wook Heo, Kwang Pak, Arwa Kurabi, Allen F Ryan

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cellular and infection microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 4 citations in OpenAlex.

  1. Neutrophils in cancer.Nature reviews. Cancer · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Microbiology spectrum · 2023
    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

4 authors at 1 institution in 2 countries.

Kyung Wook HeoDepartment of Otolaryngology, University Of California San Diego, La Jolla, CA, United States.
Kwang PakDepartment of Otolaryngology, University Of California San Diego, La Jolla, CA, United States.
Arwa KurabiDepartment of Otolaryngology, University Of California San Diego, La Jolla, CA, United States.
Allen F RyanDepartment of Otolaryngology, University Of California San Diego, La Jolla, CA, United States.
University of California San Diego · US

Funding

Middle ear responses in Otitis MediaR01DC000129 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI RYAN, ALLEN F. · 1989 to 2021
$6.8M
Innovative therapy for diseases of the middle earR01DC012595 · NIDCD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI RYAN, ALLEN F. · 2012 to 2023
$3.3M
NIDCD NIH HHS R01 DC000129NIDCD NIH HHS R01 DC012595
6 · The paper itself

Abstract

Background: Pathogens of otitis media (OM) induce inflammatory responses in the middle ear (ME), characterized by mucosal hyperplasia, leukocyte infiltration, and inflammatory mediators, including arachidonic acid metabolites. We studied the role of the eicosanoid leukotriene B4 (LTB4) in OM. Methods: Expression of LTB4-related genes was evaluated by gene array and single-cell RNA-Seq in MEs infected with nontypeable Results: ME expression of LTB4-related genes was observed by gene arrays and scRNA-Seq. However, not all genes involved in LTB4 generation occurred in any one specific cell type. Moreover, LTB4 receptor inhibition significantly reduced mucosal hyperplasia and virtually eliminated leukocyte infiltration. Conclusions: ME expression of LTB4-related genes suggest a functional role in OM disease. The fact that LTB4-generation is spread across different cell types is consistent with a transcellular pathway of eicosanoid biosynthesis involving cell-to-cell signaling as well as transfer of biosynthetic intermediates between cells. The dramatic reduction in ME leukocyte infiltration caused by U75302 indicates that LTB4 plays a major role in ME inflammatory cell recruitment, acting

Indexed as

Leukotriene B4Otitis MediaAnimalsDisease Models, AnimalHaemophilus influenzaeLeukocytesLeukotriene B4arachidonic acid (AA)inflammationleukocytesleukotriene B4 (LTB4)mucosanon-typeable Haemophilus influenzae (NTHi)otitis media (OM)

Identifiers

PMID35004347
PMCPMC8727869
OpenAlexW4200372390

What OpenQuestion holds

Textmetadata
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.