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Reactive-hyperemia index (RHI) at baseline and after 4 weeks treatment with resveratrol. (a) RHI at study baseline. (b) RHI after 4 weeks treatment with resveratrol. RH-PAT performed fasting and 90 minutes post meal challenge; RHI is ratio of post-hyperemia pulse amplitude divided by baseline amplitude (see Methods for details). Baseline vs. resveratrol post-meal delta, p = .06.
