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Excel · study · 2026

Effects of sinonasal type 2 inflammation on gene expression in the olfactory bulb and olfactory epithelium

Listed in NCBI GEO

Eosinophilic chronic rhinosinusitis (ECRS) is characterized by type 2 inflammation and olfactory dysfunction.

Description

The underlying mechanism for olfactory dysfunction in patients with ECRS remains to be elucidated. Therefore, we investigated changes in the olfactory bulb (OB) and olfactory epithelium (OE) associated with sinonasal type 2 inflammation, using a murine model of ECRS.

We developed a murine model of ECRS based on the topical application of calcipotriol and ovalbumin for 14 days and subsequent daily intranasal challenge with ovalbumin for 5 days. Control mice received each treatment with the vehicles only. Mice were sacrificed on day 19.

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For RNA extraction, the OE and OB were micro-dissected, minced, and homogenized in TRIzol reagent. RNA-seq was performed to determine the impact of sinonasal type 2 inflammation on the OB and OE. RNA-seq revealed significant decrease in the gene expression levels of lipocalin family molecules in both OB and OE.

These changes may be involved in the pathogenesis of olfactory dysfunction in ECRS.

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Life Sciences
Inferred from text
RNA sequencing 65%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE31084412 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[field].local:field:life-sciencesmapping · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencingsource · NCBI GEOconnector:ncbi_geo@1.0.0/gdstype
concepts[modality].local:modality:rna-seqenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (65%)
concepts[organism].NCBITaxon:10090source · NCBI GEOconnector:ncbi_geo@1.0.0/taxon
descriptionsource · NCBI GEOconnector:ncbi_geo@1.0.0/summary
publication_datesource · NCBI GEOconnector:ncbi_geo@1.0.0
titlesource · NCBI GEOconnector:ncbi_geo@1.0.0/title