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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: Microcirculation. 2013 Jul;20(5):365–376. doi: 10.1111/micc.12028

Figure 6.

Figure 6

Advancing age in males caused a decrease in ETa protein expression (A), but an increase in ETb protein expression (B) in coronary arterioles (Young male, n = 4; Old male, n = 5). No age-related differences were found in ETa or ETb protein expression in coronary arterioles from females (C,D) (n = 8 per group). Representative blots of either ETa or ETb receptor protein (~45 kd) are shown below graphs. Equal loading was confirmed by Sypro Ruby staining for total protein. Values are means ± SE. * Indicates significant age-related difference vs. young control, (P ≤ 0.05).