Fig. 2From: COX-2 strengthens the effects of acid and bile salts on human esophageal cells and Barrett esophageal cellsThe morphology of cells were observed by electron microscopy. A The three images are the negative control group, the COX-2 overexpression group, and the COX-2 siRNA group in HET-1A cells for 3Â days. The arrow is adenoid cavity structures. B The three images are the negative control group, the COX-2 group, and the COX-2 siRNA group in BAR-T cells for 3Â days. The arrow is autophagosomesBack to article page