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Updated: May 10, 2026

Preparation of Naringenin Solution for In Vivo Application
Published on: August 10, 2021
Flavonoid naringenin: a potential immunomodulator for Chlamydia trachomatis inflammation
Abebayehu N Yilma1, Shree R Singh, Lisa Morici
1Department of Biological Sciences, Center for NanoBiotechnology and Life Sciences Research, Alabama State University, 1627 Hall Street, Montgomery, AL 36104, USA.
Naringenin, a plant compound, reduces inflammation caused by Chlamydia trachomatis infection. It modulates key inflammatory mediators and pathways, offering potential therapeutic benefits for bacterial sexually transmitted infections.
Area of Science:
- Immunology
- Microbiology
- Pharmacology
Background:
- Chlamydia trachomatis causes sexually transmitted infections and associated inflammation.
- Inflammation is a key factor in the pathogenesis of C. trachomatis infections.
- Naringenin, a polyphenol, is investigated for its anti-inflammatory properties.
Purpose of the Study:
- To evaluate the anti-inflammatory capacity of naringenin against C. trachomatis-induced inflammation in macrophages.
- To investigate the molecular mechanisms underlying naringenin's immunomodulatory effects.
Main Methods:
- Mouse J774 macrophages were infected with live C. trachomatis.
- Naringenin's effect on cytokine and chemokine production was measured.
- Expression of TLR2, TLR4, and CD86 was analyzed.
- The role of p38 MAPK pathway was investigated using pathway-specific inhibitors.
Main Results:
- Naringenin dose-dependently downregulated inflammatory cytokines (GM-CSF, TNF, IL-1β, IL-1α, IL-6, IL-12p70, IL-10) and chemokines (CCL4, CCL5, CXCL1, CXCL5, CXCL10).
- Naringenin modulated TLR2, TLR4, and CD86 expression on infected macrophages.
- Naringenin inhibited p38 MAPK phosphorylation, suggesting a mechanism for its anti-inflammatory action.
Conclusions:
- Naringenin acts as an immunomodulator against C. trachomatis-induced inflammation.
- Its effects may involve upstream modulation of TLR2, TLR4, and CD86 receptors.
- Downstream effects via the p38 MAPK pathway contribute to its anti-inflammatory capacity.
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Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
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