Enhanced Protective Effect of the Combination of Uncaria and Semen Raphani on Vascular Endothelium in Spontaneously Hypertensive Rats

Figure 2

Endothelial morphologies of thoracic aorta and mesenteric artery were observed by scanning electron microscope after 8 weeks of drug treatment. (a)–(f) Endothelial morphology of thoracic aorta; (g)–(l) endothelial morphology of mesenteric artery. ((a) and (g)) WKY rats; ((b) and (h)) SHRs; ((c) and (i)) valsartan group; ((d) and (j)) U (Uncaria) group; ((e) and (k)) R (Semen Raphani) group; ((f) and (l)) U-R (effective components of Uncaria and Semen Raphani) group. The arrows point to the endothelial damage and the change of endothelial morphology.

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