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Isolated compounds from H. taltalense produced relaxation in intact rat aorta. Vascular relaxation of pinostrobin (1), pinocembrin (2), sakuranetin (3), rhamnocitrin (4), and 4,5 dihydroxy-3-geranyl-benzoic acid (5) were compared to ACh. Aortic rings were pre-contracted with 10−6 M PE, and then, the metabolites or ACh (10−4 M) was added in organ bath. Data are SEM of 3 independent experiments. * p < 0.05; *** p < 0.001 vs. ACh.
