Figure 5

![Figure 5: Intracellular oxidative stress markers in nasal epithelial cells are measured following quercetin treatment, showing reduced ROS levels associated with enhanced thioredoxin production.]()

> Source: Yukako Edo et al. "Quercetin Enhances the Thioredoxin Production of Nasal Epithelial Cells In Vitro." *Medicines (Basel, Switzerland)*, 2018. PMID: [30469393](https://pubmed.ncbi.nlm.nih.gov/30469393/)

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  <img src="" alt="Intracellular oxidative stress markers in nasal epithelial cells are measured following quercetin treatment, showing reduced ROS levels associated with enhanced thioredoxin production." />
  <figcaption>Figure 5. Intracellular oxidative stress markers in nasal epithelial cells are measured following quercetin treatment, showing reduced ROS levels associated with enhanced thioredoxin production.<br>  Source: Yukako Edo et al. "Quercetin Enhances the Thioredoxin Production of Nasal Epithelial Cells In Vitro." <em>Medicines (Basel, Switzerland)</em>, 2018. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/30469393/">30469393</a></figcaption>
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