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- W2022802133 abstract "A simple HPLC-UV method was developed and validated for the quantification of pterostilbene (3,5-dimethoxy-4'-hydroxy-trans-stilbene), a pharmacologically active phytoalexin in rat plasma. The assay was carried out by measuring the UV absorbance at 320 nm. Pterostilbene and the internal standard, 3,5,4'-trimethoxy-trans-stilbene eluted at 5.7 and 9.2 min, respectively. The calibration curve (20–2000 ng/mL) was linear (R2 > 0.997). The lower limits of detection and of quantification were 6.7 and 20 ng/mL, respectively. The intra- and inter-day precisions in terms of RSD were all lower than 6%. The analytical recovery ranged from 95.5 ± 3.7 to 103.2 ± 0.7% while the absolute recovery ranged from 101.9 ± 1.1 to 104.9 ± 4.4%. This simple HPLC method was subsequently applied in a pharmacokinetic study carried out in Sprague–Dawley rats. The terminal elimination half-life and clearance of pterostilbene were 96.6 ± 23.7 min and 37.0 ± 2.5 mL/min/kg, respectively, while its absolute oral bioavailability was 12.5 ± 4.7%. Pterostilbene appeared to have better pharmacokinetic characteristics than its natural occurring analog, resveratrol. Copyright © 2009 John Wiley & Sons, Ltd." @default.
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- W2022802133 date "2009-12-01" @default.
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- W2022802133 title "Determination of pterostilbene in rat plasma by a simple HPLC-UV method and its application in pre-clinical pharmacokinetic study" @default.
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- W2022802133 doi "https://doi.org/10.1002/bmc.1254" @default.
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