PMID- 24552382 OWN - NLM STAT- MEDLINE DCOM- 20160520 LR - 20140220 IS - 1715-5320 (Electronic) IS - 1715-5312 (Linking) VI - 39 IP - 3 DP - 2014 Mar TI - Effects of a freeze-dried juice blend powder on exercise-induced inflammation, oxidative stress, and immune function in cyclists. PG - 381-5 LID - 10.1139/apnm-2013-0338 [doi] AB - A freeze-dried fruit and vegetable juice powder (JUICE) was investigated as a countermeasure nutritional strategy to exercise-induced inflammation, oxidative stress, and immune perturbations in trained cyclists. Thirty-four cyclists (25 male, 9 female) were randomized to control (nonJUICE) or JUICE for 17 days. JUICE provided 230 mg.day(-1) of flavonoids, doubling the typical adult daily intake. During a 3-d period of intensified exercise (days 15-17), subjects cycled at 70%-75% V̇O2max for 2.25 h per day, followed by a 15-min time trial. Blood samples were collected presupplementation, post supplementation (pre-exercise), and immediately and 14-h post exercise on the third day of exercise. Samples were analyzed for inflammation (interleukin (IL)-6, IL-8; tumor necrosis factor alpha (TNFalpha); monocyte chemoattractant protein-1 (MCP-1)), oxidative stress (oxygen radical absorbance capacity (ORAC), ferric reducing ability of plasma (FRAP), reduced and oxidized glutathione, protein carbonyls), and innate immune function (granulocyte (G-PHAG) and monocyte (M-PHAG) phagocytosis and oxidative burst activity). A 2 (group) x 4 (time points) repeated measures ANOVA revealed significant time effects due to 3 days of exercise for IL-6 (396% increase), IL-8 (78% increase), TNFalpha (12% increase), MCP-1 (30% increase), G-PHAG (38% increase), M-PHAG (36% increase), FRAP (12.6% increase), ORAC (11% decrease at 14 h post exercise), and protein carbonyls (82% increase at 14 h post exercise) (p < 0.01). No significant interaction effects were found for any of the physiological measures. Although providing 695 gallic acid equivalents of polyphenols per day, JUICE treatment for 17 days did not change exercise-induced alterations in inflammation and oxidative stress or immune function in trained cyclists after a 3-day period of overreaching. FAU - Knab, Amy M AU - Knab AM AD - a Human Performance Laboratory, Appalachian State University, North Carolina Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA. FAU - Nieman, David C AU - Nieman DC FAU - Gillitt, Nicholas D AU - Gillitt ND FAU - Shanely, R Andrew AU - Shanely RA FAU - Cialdella-Kam, Lynn AU - Cialdella-Kam L FAU - Henson, Dru AU - Henson D FAU - Sha, Wei AU - Sha W FAU - Meaney, Mary Pat AU - Meaney MP LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20131022 PL - Canada TA - Appl Physiol Nutr Metab JT - Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme JID - 101264333 RN - 0 (Flavonoids) RN - 0 (Polyphenols) SB - IM MH - Adult MH - *Beverages MH - Bicycling/*physiology MH - Exercise/*physiology MH - Female MH - Flavonoids/administration & dosage MH - Freezing MH - *Fruit MH - Humans MH - Inflammation/*immunology/*metabolism MH - Male MH - *Oxidative Stress MH - Polyphenols/administration & dosage MH - *Vegetables EDAT- 2014/02/21 06:00 MHDA- 2016/05/21 06:00 CRDT- 2014/02/21 06:00 PHST- 2014/02/21 06:00 [entrez] PHST- 2014/02/21 06:00 [pubmed] PHST- 2016/05/21 06:00 [medline] AID - 10.1139/apnm-2013-0338 [doi] PST - ppublish SO - Appl Physiol Nutr Metab. 2014 Mar;39(3):381-5. doi: 10.1139/apnm-2013-0338. Epub 2013 Oct 22.