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. 2018 Sep 7;5(1):19-25.
doi: 10.1016/j.wjorl.2018.07.004. eCollection 2019 Mar.

The association of Leptospermum honey with cytokine expression in the sinonasal epithelium of chronic rhinosinusitis patients

Jamil Manji  1   2 , Andrew Thamboo  1 , Vishnu Sunkaraneni  1   3 , Amrit Singh  4   5 , Scott Tebbutt  4   5 , Cathie Garnis  2 , Amin Javer  1
Affiliations

The association of Leptospermum honey with cytokine expression in the sinonasal epithelium of chronic rhinosinusitis patients

Jamil Manji et al. World J Otorhinolaryngol Head Neck Surg. .

Abstract

Objective: To identify the differences in cytokine expression between sinonasal tissue from patients treated with Leptospermum (Manuka) honey (LH) irrigation versus normal saline irrigation twice-daily for twelve weeks following sinus surgery (FESS).

Methods: Forty-six CRS patients were recruited. Sinus tissue biopsies were collected during FESS and then at 5 and 12 weeks postoperatively during the course of treatment. A multi-plex cytokine assay quantified the abundance of 17 cytokines in biopsied tissue. Cytokine expression fold-change was analyzed between each time point using a robust linear regression model and compared between the two treatment groups.

Results: Compared to the saline irrigation group, five cytokines were differently expressed (CI = 95%) in sinonasal tissue obtained from subjects in the LH irrigation group during the 12-week treatment period. Cytokines IL-6 (P = 0.0400), IL-8 (P = 0.0398), MCP-1 (P = 0.0284), and MIP-1β (P = 0.016) were significantly increased in the LH irrigation group compared to the saline irrigation group. IL-13 was significantly increased in the saline irrigation group compared to the LH group (P = 0.0086).

Conclusion: LH may potentially act to modulate the expression of IL-6, IL-8, IL-13, MCP-1 and MIP-1β in sinonasal tissue.

Keywords: Inflammation; Irrigation; Leptospermum honey; Postoperative care; Sinusitis.

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Figures

Fig. 1
Fig. 1
Cytokine expression fold-change from baseline to the 5-week postoperative clinic visit in Leptospermum honey (LH) and Saline irrigation treatment groups.
See this image and copyright information in PMC

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