AI Article Synopsis
- Allergic rhinitis (AR) is a common chronic disease that is increasing in prevalence, and this study examined how naringenin could protect against AR in rats.
- Thirty-two rats were used in the experiment, with one control group and three other groups subjected to AR induction, treated with either a reference medication or naringenin.
- Results indicated that naringenin significantly reduced symptoms, lowered serum IgE and cytokines associated with inflammation, and improved nasal tissue structure compared to the untreated AR group, suggesting naringenin may be a viable treatment option for AR.
Article Abstract
Background: Allergic rhinitis (AR) is a ubiquitous chronic disease with a growing incidence. We aimed to investigate the protective effect of naringenin against AR induced in rats.
Methods: Thirty-two Sprague Dawley rats were divided into four groups of eight animals each. Group 1 represented the control group. The other 24 rats were sensitized with intraperitoneal 0.3 mg ovalbumin (OVA) and 30 mg aluminum hydroxide every other day for 14 days to induce AR. Ten microliters OVA was administered to both nostrils by inhalation for the following seven days to provoke AR. Group 2 represented the AR group and received no treatment. Group 3 was treated as the reference group and received 5 mg/kg desloratadine every day between days 15 and 21. Group 4 received 100 mg/kg naringenin orally between days 15 and 21. All animal's sneezing and nasal itching scores were recorded on day 22. The rats were then sacrificed. Serum total IgE, IL4 and IL5 values were studied, and nasal structures were extracted 'en bloc' for histopathological examination.
Results: Significant clinical recovery was achieved in the group treated with naringenin. Serum total IgE, IL4 and IL5 values in the naringenin group were significantly lower than in the AR group, and significant histopathological improvement was observed compared to the AR group.
Conclusions: Naringenin produced significant clinical, biochemical and histopathological benefits in rats with induced AR. These effects suggest that naringenin is a promising agent for the treatment of AR.
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| http://dx.doi.org/10.1007/s00405-021-06769-7 | DOI Listing |
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