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Figure 3 | Nutrition & Metabolism

Figure 3

From: In vitro vasorelaxation mechanisms of bioactive compounds extracted from Hibiscus sabdariffa on rat thoracic aorta

Figure 3

(A) Relaxant effects of various extracts (10-4 to 10-1g/l) of hibiscus sabdariffa calyx in aortic rings with endothelium precontracted with norepinephrine (10-8 to 10-6M) and (B) Comparative Emax (% values in terms of vasorelaxant effects of the various enriched extracts. Values are expressed as mean ± SEM of 6-8 experiments; ns: not significant; *: P < 0.05, ** P < 0.01, in comparison to crude extract as reference.

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