Antihypertensive and Antihypertrophic Effects of Acupuncture at PC6 Acupoints in Spontaneously Hypertensive Rats and the Underlying Mechanisms
Effect of EA treatment on histology of myocardial tissue. The tissue was taken after 8 weeks of EA treatment from SHR or at the same time course from WKY and stained by hematoxylin and eosin. (a) H&E stained cross-sections of rat hearts in WKY, SHR, SHR + EA, and SHR + Sham group (bar = 1000 μm). (b) Representative histology of myocardial tissue at higher magnification, indicating obvious myocyte hypertrophy, vacuolar degeneration, and inflammation cells infiltration in SHR, which were ameliorated by EA treatment (bar = 25 μm). (c) Quantitative analysis of myocyte diameter of the cross-sectional tissue slices of heart. versus WKY; versus SHR ( each group). (d) Quantitative analysis of cross-sectional area (CSA) of the cross-sectional tissue slices of heart. versus WKY; versus SHR ( each group). (e) The heart weight/body weight ratio (HW/BW ratio, mg/g) was estimated after 8 weeks of EA treatment ( each group).