ArticleHeliyon2025
High-fat diet triggers transcriptomic changes in the olfactory bulb.
Article in Heliyon, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Olfactory dysfunction in obesity and type 2 diabetes: mechanistic insights from preclinical models.Diabetologia · 2026Review
- Lack of Structural Change in Olfactory Circuitry Following Fecal Microbiome Transplant From Donors Subjected to Diet-induced Obesity.Journal of neurochemistry · 2026Article
- The Change of Noncoding RNA Expression in Olfactory Bulb of Hepatic Encephalopathy Mouse Model: Transcriptomic Analysis and Cellular Analysis.CNS neuroscience & therapeutics · 2025Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Metabolic imbalance contributes to cognitive impairment, anxiety, depressive behavior, and impaired olfactory perception. Recent studies have focused on olfactory dysfunction in patients with obesity and diabetes accompanied by cognitive dysfunction, considering that the synaptic signal from the olfactory bulb is directly transmitted to memory consolidation-related brain regions. This study investigated transcriptomic changes in the olfactory bulb in high-fat diet (HFD)-fed mice compared to that in normal-diet-fed mice. We sampled olfactory bulbs from HFD-fed mice, performed RNA sequencing, and measured mRNA levels in olfactory bulb tissue. Additionally, we assessed plasma cytokine levels in HFD-fed mice. We found differences in the expression of protein-coding and non-coding RNAs involved in insulin, lipid metabolism, neurogenesis, serotonin, dopamine, and gamma-aminobutyric acid-related signaling in the olfactory bulb of HFD-fed mice compared to control mice. Thus, our findings suggest potential therapeutic targets for treating olfactory dysfunction and related neural disorders in individuals with metabolic syndrome.
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