Clin Exp Otorhinolaryngol.  2012 Dec;5(4):222-227. 10.3342/ceo.2012.5.4.222.

The Effect of Nano-Silver on Allergic Rhinitis Model in Mice

  • 1Department of Otorhinolaryngology, Catholic University of Daegu School of Medicine, Daegu, Korea.


Silver has long been known as a strong antimicrobial and disinfectant. Several types of nano-silver coated products have been developed. However, the antimicrobial and disinfectant characteristics of nano-silver have not been well studied. The aim of this study was to investigate the effect of nano-silver on allergic inflammation in a mouse model.
Female BALB/C mice were sensitized by intraperitoneal injection of ovalbumin (OVA) and aluminium hydroxide on days 0, 7, 14, and 21. Mice were challenged with intranasal instillation of OVA. Nano-silver was also administered nasally prior to intranasal instillation of OVA. Severity of allergic rhinitis was assessed according to nasal symptoms, serum OVA-specific IgE level, interleukin (IL)-4, IL-10, and interferon (INF)-gamma levels in nasal lavage fluid. Hematoxylin-eosin stain and periodic acid-Schiff stain were performed for evaluation of histological change.
Nano-silver attenuated manifestation of nasal symptoms in sensitized mice and inhibited production of OVA-specific IgE, IL-4, and IL-10, however, it had no effect on INF-gamma level. In addition, the degree of inflammatory cell infiltration and goblet cell hyperplasia was attenuated by nano-silver.
These results suggest that nano-silver may effectively reduce allergic inflammation in a mouse model of allergic rhinitis. Through its properties as an anti-inflammatory agent, nano-silver may be a useful therapeutic strategy.


Nanosilver; Allergic rhinitis; Mouse model
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