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. Author manuscript; available in PMC: 2013 Feb 28.
Published in final edited form as: Am J Rhinol Allergy. 2011 Sep-Oct;25(5):307–312. doi: 10.2500/ajra.2011.25.3643

Figure 2. Quercetin (50μM) stimulates Cl− transport in human sinonasal epithelium in vitro.

Figure 2

−ΔISC was measured following amiloride blockade of ENaC channels in a Cl− secretory gradient using primary human sinus epithelial cultures studied in an Ussing chamber under voltage clamp conditions. Following addition of quercetin (50 μM),ΔISC significantly increased in human cultures (p<0.01).