Figure 4. Chronic RAS blockade reduces ACE expression and angiotensin II levels after ovariectomy.
Effects of chronic treatment of OVX rats with enalapril or valsartan on the protein level of angiotensin-converting enzyme (ACE) revealed by Western blot (A) and immunohistochemistry (B). Immunohistochemical staining of angiotensin II in the aortic vascular wall (C). Sections are counterstained with hematoxylin. Magnification ×400. Results are means±SEM of 4–6 experiments. Statistical significance is indicated by ** p<0.01 and *** p<0.001.