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. Author manuscript; available in PMC: 2016 Feb 3.
Published in final edited form as: Toxicol Appl Pharmacol. 2015 Oct 21;289(3):542–549. doi: 10.1016/j.taap.2015.10.004

Fig. 9.

Fig. 9

H&E images (objective magnification = 100×) illustrating the effects of diacetyl (100, 200, 300 ppm) on NHBE morphology. (A) Unexposed, control epithelial cells demonstrating the presence of a confluent, pseudo-stratified epithelium. (B) Cells exposed to diacetyl at 100 ppm, (C) 200 ppm and (D) 300 ppm. Bar = 10 μM.