eISSN: 1644-4124
ISSN: 1426-3912
Central European Journal of Immunology
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1/2017
vol. 42
 
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abstract:
Experimental immunology

Anti-allergic effect of luteolin in mice with allergic asthma and rhinitis

Tae Young Jang
,
Ah-Yeoun Jung
,
Tae-Suk Kyung
,
Dae-Young Kim
,
Jun-Ha Hwang
,
Young Hyo Kim

(Cent Eur J Immunol 2017; 42 (1): 24-29)
Online publish date: 2017/05/08
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Aim of the study: We aimed to evaluate the anti-allergic effect of luteolin treatment in mice with allergic asthma and rhinitis.

Material and methods: Thirty-two BALB/c mice (n = 8 for each group) were used. Mice in group A (nonallergic group) were exposed to saline, while those in Group B (allergic group) were exposed to ovalbumin (OVA) intraperitoneal (i.p.) injection and intranasal (i.n.) challenge. Null treatment group (Group C) received sterile saline (150 µl) i.p. injection, 30 minutes before each i.n. challenge. Finally, the treatment group (Group D) received luteolin (0.1 mg/kg) by i.p. injection, 30 minutes before each i.n. challenge. We evaluated the number of inflammatory cells including eosinophils, neutrophils and lymphocytes in bronchoalveolar lavage (BAL) fluid, the titers of IL-4, IL-5 and IL-13 in lung homogenate, and we also evaluated histopathologic findings, including infiltration of inflammatory cells into the pulmonary parenchyma and nasal mucosa.

Results: After the OVA challenge, the number of eosinophils, neutrophils and lymphocytes in BAL fluid was significantly increased in group B, compared to group A (p < 0.001). Mice in group C had no significant difference (p > 0.05). On the other hand, group D showed a significant decrease in all inflammatory cells compared to group B (p < 0.05). Also, group D showed a significant decrease in IL-4, IL-5 and IL-13 in their lung homogenate compared to groups B and C (p < 0.05). Group D also showed a significant decrease in inflammatory cell infiltration after luteolin treatment (p < 0.05).

Conclusion: Luteolin had an anti-allergic effect in a murine model of allergic asthma and rhinitis.

keywords:

asthma, allergic rhinitis, luteolin

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