Fig. 2

Representative HE-stained and immunofluorescent stained slices for non-SjS and SjS group. Images are × 200 (scale bars, 50 μm) except immunofluorescent stained sections in b, which are × 100 (scale bars, 50 μm). Red staining shows CFTR localization and blue DAPI staining shows cell nuclei. a Matched slides of labial gland section were stained with hematoxylin and eosin (HE) and the dashed box in b indicates the section as in a. b DAPI staining of labial gland section for non-SjS and SjS group; magnification, × 100. c The white solid box in b represents the magnified region in the images. White arrowheads point to the expression of CFTR. d Comparison of the mean of CFTR expression between non-SjS (n = 44) and SjS (n = 36) groups. Error bars represent SD. p values are based on Mann–Whitney U test