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Showing 1 to 3 of 3 for “"Paraxanthine"”.
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A comparison of the effects of different forms of caffeine supplementation on 5000-metre running performance
… a urine sample for analysis of caffeine and paraxanthine metabolites. RESULTS In comparison with P, caffeine supplementation improved running performance for CT = 2.0% ± 1.1%, CG= 0.9 ± 1.4% and CS= 1.2 ± 1.0 % (95% CL), with only CT significant (p=0.02). Overall pace trended faster in all …
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Effect of rutaecarpine on caffeine pharmacokinetics in rats
… residence time of caffeine and its metabolites (paraxanthine, theophylline and theobromine), as early as 3 hours before oral caffeine administration. The oral caffeine bioavailability (F) decreases by about 50% for the 3, 6 and 12-hour, 70% for the 24 hour and 80% for the one week daily …
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Reversed-Phase Liquid Chromatography Tandem Mass Spectrometry And Elisa Determination Of Caffeine As A Marker For Sewage Contamination Of Wilgreen Lake
… sulfamethoxazole, trimethoprim, cotinine, paraxanthine, acetaminophen and fluoxetine) belonging to various therapeutic categories in the lake was also investigated using the LC-MS/MS method of analysis. </p> <p>Since caffeine exists in surface waters at low concentrations, solid phase …