Fig 2: Representative images of a-7 nAChR in the uteri of gilts from the control (Ctrl), saline (Sal) and E. coli (E. coli) groups Image A – moderate immunoexpression of a-7 nAChR in the luminal epithelium and weak immunoexpression in the glandular epithelium of the Ctrl groupImage B – weak immunoexpression of a-7 nAChR in the luminal epithelium of the E. coli groupImage C – weak immunoexpression of a-7 nAChR in the glandular epithelium of the Sal groupImage D – weak immunoexpression of a-7 nAChR in the glandular epithelium of the E. coli groupImage E – weak or absent immunoexpression of a-7 nAChR in the arteries of the endometrium, endothelium, and muscle layer of the Ctrl groupImage F – weak or absent immunoexpression of a-7 nAChR in the arteries of the endometrium, endothelium, and muscle layer of the E. coli groupImage G – weak immunoexpression of a-7 nAChR in the muscle cells of the myometrium of the Sal groupImage H – weak immunoexpression of a-7 nAChR in the muscle cells of the myometrium of the E. coli groupImage I – negative control for a-7 nAChR after replacing the primary antibody with rabbit normal IgGA – artery, E – endothelium, GE – glandular epithelium, LE – luminal epithelium, MCM – muscle cells of myometrium, ML – muscle layer, NC – negative control