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Efficacy of snakehead fish (Channa striatus) in subjects with allergic rhinitis: a randomized controlled trial

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Abstract

Allergic rhinitis is a prevailing chronic inflammatory respiratory disorder that affects 10–30% of the population globally. Channa striatus (Channa) is a snakehead, freshwater fish that has been used traditionally to enhance wound healing and relief post-operative pain. This study evaluates the efficacy of oral Channa extract on allergic rhinitis subjects on total nasal symptom score and serum immunoglobulin E (Ig E). A randomized, double-blind, placebo-controlled trial was conducted by comparing the oral Channa extract 500 mg/day and placebo among allergic rhinitis subjects for a 6-week intervention period. Subjects aged 18–50 years old, diagnosed with allergic rhinitis based on total symptoms score, naso-endoscopy findings, and positive skin prick test were included in this trial. All subjects were treated with antihistamine (levocetrizine) and local corticosteroid nasal spray (fluticasone furoate nasal spray). Laboratory-based blood tests were used as safety measures. A total of 70 subjects were randomized. Channa group showed significant improvement in nasal blockage (p < 0.05), nasal itchiness (p < 0.05), eye itchiness (p < 0.05) and general symptoms (p < 0.05) compared to the placebo groups. Serum Ig E were significantly lowered in Channa group compared to placebo (p < 0.001). No significant differences were found between the groups in terms of nasal discharge, sneezing, palate itchiness, and smell score. No serious adverse events were reported. In conclusion, Channa has a beneficial role in improving nasal symptoms and reduction in serum Ig E in allergic rhinitis subjects.

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Acknowledgements

We would like to acknowledge the late Prof. Saringat Baie from Universiti Sains Malaysia for his contributions to the study.

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Correspondence to Azidah Abdul Kadir.

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Ethical statement

All procedures performed in studies involving human participants were in accordance with the ethical standards of the Human Research Ethics Committee (Reference Number: 00007718, IRB No: 00004494), Universiti Sains Malaysia and with the Helsinki Declaration of 1975, as revised in 2008.

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This manuscript described has not been published before; not under consideration for publication anywhere else; and has been approved by all co-authors.

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Susibalan, B.D., Abdullah, B., Mat Lazim, N. et al. Efficacy of snakehead fish (Channa striatus) in subjects with allergic rhinitis: a randomized controlled trial. Orient Pharm Exp Med 18, 209–215 (2018). https://doi.org/10.1007/s13596-018-0327-9

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  • DOI: https://doi.org/10.1007/s13596-018-0327-9

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