Volume 45, Issue 12 e13963
ORIGINAL ARTICLE

Ajwain oil attenuates allergic response of ovalbumin-induced allergic rhinitis via alteration of inflammatory, oxidative stress, and Th1/Th2 responses

Jingjing Li

Jingjing Li

Department of Otolaryngology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xibei Hospital, Xi'an, China

Contribution: ​Investigation, Methodology, Project administration, Writing - original draft, Writing - review & editing

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Prashant Raghav

Prashant Raghav

Department of Pharmacy, Dharamveer Singh Rajput Memorial College of Pharmacy, Moradabad, India

Contribution: Conceptualization, Data curation, Writing - original draft, Writing - review & editing

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Chunyan Hu

Corresponding Author

Chunyan Hu

Department of Otolaryngology-Head and Neck Surgery, Children's Hospital Affiliated to Xi'an Jiaotong University, Xi'an, China

Correspondence

Chunyan Hu, Department of Otolaryngology-Head and Neck Surgery, Xi'an Children's Hospital, Xi'an 710003, China.

Email: [email protected]

Contribution: Conceptualization, Data curation, Resources, Software, Supervision, Validation, Visualization, Writing - original draft, Writing - review & editing

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First published: 27 October 2021
Citations: 2

Abstract

Background: Allergic rhinitis (AR) is an immune inflammatory-related disorder that affects the nasal mucosa. Free radicals play a crucial role in the expansion of allergic reaction and the researcher used the antioxidant therapy to treat the disease. Trachyspermum ammi L. (Ajwain oil) is popular traditional medicine. It has been proved their potential effect on various diseases. Ajwain oil showed anti-tumor, antioxidant, antidiabetic, anti-inflammatory, and anti-bacterial properties. Yet, the anti-allergic effect of Ajwain oil is still not explored. In this experimental study, an ovalbumin (OVX)-induced AR model was used to scrutinize the anti-allergic, antioxidant and anti-inflammatory effects of Ajwain oil. Materials and Methods: OVX was used to establish the AR model (sensitization days 1, 8, and 15) and given the oral treatment of Ajwain oil and Montelukast for 13 days. The spleen, lungs, and body weight were estimated. Sneezing, nasal discharge and rubbing are also estimated. Immunoglobin-E (IgE), histamine, malondialdehyde (MDA), superoxide dismutase (SOD), heme oxygenase-1 (HO-1), nuclear factor erythroid 2-related factor 2 (Nrf2), and inflammatory cytokines were scrutinized. Results: Ajwain oil significantly (p < .001) suppressed sneezing, nasal discharge and nasal rubbing along with increasing the spleen, lung and body weight. Ajwain oil significantly (p < .001) decreased the level of IgE, histamine, MDA, Nrf2, HO-1, and increased the level of SOD. Ajwain oil significantly (p < .001) suppressed the number of eosinophils, neutrophils, macrophages, and epithelial cells. Ajwain oil significantly prevented the activation of the NF-κBp65 and STAT3 signaling pathways that led to enhancing the synthesis of anti-inflammatory cytokines and reducing the inflammatory, allergen-specific type 2T helper cells (Th2), Th17 cytokines. Conclusion: The obtained data suggests that Ajwain oil has a promising anti-allergic against allergic rhinitis in mice via anti-allergic, antioxidant, and anti-inflammatory effects.

Practical applications

Allergic rhinitis is a serious life-threatening disease. Inflammatory reaction plays an important role in the expansion of AR diseases. Ajwain oil considerably increased the spleen weight and reduced lung weight. Ajwain oil suppressed the nasal rubbing, sneezing, and nasal discharge. Ajwain oil considerably suppressed the immunoglobin and inflammatory cytokines. The result suggests that Ajwain oil having the potential effect against the allergic rhinitis.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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