title: Consumption of cherries lowers plasma urate in healthy women.
abstract: To assess the physiologic effects of cherry consumption, we measured plasma urate, antioxidant and inflammatory markers in 10 healthy women who consumed Bing sweet cherries. The women, age 22-40 y, consumed two servings (280 g) of cherries after an overnight fast. Blood and urine samples were taken before the cherry dose, and at 1.5, 3 and 5 h postdose. Plasma urate decreased 5 h postdose, mean +/- SEM = 183 +/- 15 micro mol/L compared with predose baseline of 214 +/- 13 micro mol/L (P < 0.05). Urinary urate increased postdose, with peak excretion of 350 +/- 33 micro mol/mmol creatinine 3 h postdose compared with 202 +/- 13 at baseline (P < 0.01). Plasma C-reactive protein (CRP) and nitric oxide (NO) concentrations had decreased marginally 3 h postdose (P < 0.1), whereas plasma albumin and tumor necrosis factor-alpha were unchanged. The vitamin C content of the cherries was solely as dehydroascorbic acid, but postdose increases in plasma ascorbic acid indicated that dehydroascorbic acid in fruits is bioavailable as vitamin C. The decrease in plasma urate after cherry consumption supports the reputed anti-gout efficacy of cherries. The trend toward decreased inflammatory indices (CRP and NO) adds to the in vitro evidence that compounds in cherries may inhibit inflammatory pathways.
authors.affiliation: U.S. Department of Agriculture/ARS Western Human Nutrition Research Center, University of California at Davis, Davis, CA 95616, USA. rjacob@whnrc.usda.gov
authors.forename: Robert A
authors.initials: RA
authors.lastname: Jacob
authors.forename: Giovanna M
authors.initials: GM
authors.lastname: Spinozzi
authors.forename: Vicky A
authors.initials: VA
authors.lastname: Simon
authors.forename: Darshan S
authors.initials: DS
authors.lastname: Kelley
authors.forename: Ronald L
authors.initials: RL
authors.lastname: Prior
authors.forename: Betty
authors.initials: B
authors.lastname: Hess-Pierce
authors.forename: Adel A
authors.initials: AA
authors.lastname: Kader
mesh_terms: D000328:Adult; D004032:Diet; D005260:Female; D006801:Humans; D027861:Prunus; D012016:Reference Values; D014527:Uric Acid / Q000097:blood*
chemical_list: D014527:Uric Acid