Fig. 3

Effect of PUE on the morphological structure of common carotid artery. A Representative H&E-stained histological images of CCA in different groups; thickness of CCA of SHR group was significantly larger, and vascular smooth muscle cells were arranged in disorder, hypertrophy, and irregular in shape compared to WKY group; PUE led to a less damaged CCA. B Representative Masson-stained histological images of CCA in different groups. The collagen fibers stained blue-green of SHR group were obviously more than WKY group, and PUE could ameliorate CCA collagen fiber hyperplasia (Scale bar: 100 μm)