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Vascular response to phenylephrine (PE) and acetylcholine (ACh). A Representative curves contractile response to PE. B Concentration-effect curves for ACh in the aorta with intact endothelium. The concentration-response curves of the aortic rings were generated from control rats and rats fed a high-fat diet rich in unsaturated fatty acids (U-HFD). Each point represents mean ± SEM, n=7. *P<0.05 versus the control group
