Evidence map›Paper›PMID 39219918›Full record

ArticleCureus2024

Effects of Corticosteroid Treatment on Olfactory Dysfunction in LATY136F Knock-In Mice.

Fumi Ozaki, Takayoshi Ueno, Satoru Kondo, Misako Kaneda, Ichiro Mizushima, Kazunori Yamada, Marie Malissen, Bernard Malissen, Mitsuhiro Kawano, Tomokazu Yoshizaki

Abstract read
In one paragraph

Article in Cureus, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

10 authors.

Fumi OzakiOtolaryngology, Head and Neck Surgery, Kanazawa University Graduate School of Medical Sciences, Kanazawa, JPN.
Takayoshi UenoOtolaryngology, Head and Neck Surgery, Kanazawa University Graduate School of Medical Sciences, Kanazawa, JPN.
Satoru KondoOtolaryngology, Head and Neck Surgery, Kanazawa University Graduate School of Medical Sciences, Kanazawa, JPN.
Misako KanedaOtolaryngology, Public Central Hospital of Matto Ishikawa, Hakusan, JPN.
Ichiro MizushimaRheumatology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, JPN.
Kazunori YamadaHematology and Immunology, Kanazawa Medical University, Uchinada, JPN.
Marie MalissenMarseille-Luminy Immunology Center, Aix Marseille Université, Marseille, FRA.
Bernard MalissenMarseille-Luminy Immunology Center, Aix Marseille Université, Marseille, FRA.
Mitsuhiro KawanoHematology and Immunology, Kanazawa Medical University, Uchinada, JPN.
Tomokazu YoshizakiOtolaryngology, Head and Neck Surgery, Kanazawa University Graduate School of Medical Sciences, Kanazawa, JPN.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveImmunoglobulin G4-related disease (IgG4-RD) is a systemic inflammatory condition affecting multiple organs, including the pancreas, salivary glands, lungs, kidneys, skin, and lymph nodes. Clinically, it is characterized by elevated serum IgG and IgG4 levels and tissue infiltration by IgG4-positive plasma cells, lymphocytes, fibrosis, and phlebitis obliterans. IgG4-RD is linked to increased Th2-dominant cytokines, contributing to eosinophilia, elevated serum IgG4, and fibrosis. A notable feature is its good response to corticosteroid therapy. To investigate the effects of corticosteroid treatment on olfactory dysfunction in LATY136F knock-in mice, which exhibited increased production of Th2-type IgG1 (the murine homolog of human IgG4) and developed multiorgan tissue lesions similar to those observed in IgG4-RD patients.

methodsLATY136F knock-in mice (n=24) were divided into groups that received prednisolone or saline at different ages. Olfactory function was assessed using a behavioral test with cycloheximide. Histological and immunohistochemical analyses were performed to evaluate the olfactory epithelium thickness as well as the presence of mature and immature olfactory neurons.

resultsCorticosteroid-treated mice exhibited significantly improved olfactory function compared to the controls. Histological analysis revealed a significant increase in olfactory epithelium thickness and mature (olfactory marker protein-positive) and immature (growth-associated protein 43-positive) olfactory neurons in the treated groups compared with the control group.

conclusionCorticosteroid treatment effectively improved olfactory dysfunction and promoted olfactory epithelium regeneration in LATY136F knock-in mice, suggesting the potential therapeutic benefits of corticosteroid treatment for patients with IgG4-RD experiencing olfactory dysfunction. However, further research on topical nasal steroid therapy in untreated patients is warranted. The results support further investigation into topical nasal steroid therapies for treating olfactory dysfunction in untreated patients, potentially influencing clinical practice and patient management strategies for IgG4-RD globally.

Indexed as

corticosteroidsgrowth-associated protein 43igg4-related diseaselaty136folfactory dysfunctionolfactory marker proteinolfactory neurons

Identifiers

PMID39219918
PMCPMC11361824

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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.