The protein expression of Sonic hedgehog target gene Patched 1 (Ptch1) in carotid
cross sections from the different experimental groups [sham-operated,
ligated (cornstarch control), ligated + EtOH] was assessed by
immunohistochemistry using a rabbit polyclonal anti-Ptch1 primary antibody and
an Alexa fluor 594-conjugated secondary antibody. Representative images
(×20 magnification, scale bar 50 μM) shown. DAPI (blue); Ptch1
(red), eGFP (green, i.e., Sca1+), merged image (bottom).
Dotted lines trace internal and external elastic laminae.