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Cited by 168

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

Effects of resveratrol alone or in combination with piperine on cerebral blood flow parameters and cognitive performance in human subjects: a randomised, double-blind, placebo-controlled, cross-over investigation

Open access
Wightman, Emma L., Reay, Jonathon L., Haskell, Crystal F., Williamson, Gary, Dew, Tristan P., Kennedy, David O.·2014·British Journal of Nutrition

Abstract

Previous research has shown that resveratrol can increase cerebral blood flow (CBF) in the absence of improved cognitive performance in healthy, young human subjects during the performance of cognitively demanding tasks. This lack of cognitive effects may be due to low bioavailability and, in turn, reduced bioefficacy of resveratrol in vivo. Piperine can alter polyphenol pharmacokinetics, but previous studies have not investigated whether this affects the efficacy of the target compound. Therefore, the objective of the present study was to ascertain whether co-supplementation of piperine with resveratrol affects the bioavailability and efficacy of resveratrol with regard to cognition and CBF. The present study utilised a randomised, double-blind, placebo-controlled, within-subjects design, where twenty-three adults were given placebo,trans-resveratrol (250 mg) and trans-resveratrol with 20 mg piperine on separate days at least a week apart. After a 40 min rest/absorption period, the participants performed a selection of cognitive tasks and CBF was assessed throughout the period, in the frontal cortex, using near-IR spectroscopy. The presence of resveratrol and its conjugates in the plasma was confirmed by liquid chromatography–MS analysis carried out following the administration of the same doses in a separate cohort (n 6). The results indicated that when co-supplemented, piperine and resveratrol significantly augmented CBF during task performance in comparison with placebo and resveratrol alone. Cognitive function, mood and blood pressure were not affected. The plasma concentrations of resveratrol and its metabolites were not significantly different between the treatments, which indicates that co-supplementation of piperine with resveratrol enhances the bioefficacy of resveratrol with regard to CBF effects, but not cognitive performance, and does this without altering bioavailability.

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Metadata

Authors
Wightman, E. L., Reay, J. L., Haskell, C. F., Williamson, G., Dew, T. P., & Kennedy, D. O.
Venue
British Journal of Nutrition
Published
2014-05-07
Volume
112
Issue
2
Pages
203-213
ISSN
  • 0007-1145 (ISSN-L)
  • 1475-2662
OpenAlex
W1996382452
Cited by
168
References
9
FWCI
8.21
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Effects of resveratrol alone or in combination with piperine on cerebral blood flow parameters and cognitive performance in human subjects: a randomised, double-blind, placebo-controlled, cross-over investigation. https://app.cochat.ai/papers/10.1017/s0007114514000737
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Wightman, E. L., Reay, J. L., Haskell, C. F., Williamson, G., Dew, T. P., & Kennedy, D. O. (2014). Effects of resveratrol alone or in combination with piperine on cerebral blood flow parameters and cognitive performance in human subjects: a randomised, double-blind, placebo-controlled, cross-over investigation. British Journal of Nutrition. https://doi.org/10.1017/s0007114514000737

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