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• W2034402080 abstract "Short-chain alkylglycerols have been described to increase the penetration of drugs and macromolecules across the blood-brain barrier (BBB) into the central nervous system (CNS) and were considered to be of potential value in the pharmaceutical treatment of CNS disorders. Due to the lack of information on the pharmacological behavior of these compounds in vivo, pharmacokinetics and biodistribution of [14C]- and [3H]-labeled 1-O-pentylglycerol (49 mg/kg, 100 mM) was investigated in normal male Wistar rats after intravenous as well as intracarotid administration. There was a rapid and predominant renal elimination of 1-O-pentylglycerol and more than 70% of administered dose was found in the urine within 270 min. Analysis of the pharmacokinetic parameters after a single i.v. bolus injection of 1-O-pentylglycerol resulted in a peak blood concentration of 0.58+/-0.06 micromol/ml, an initial half life of 23+/-7 min and a terminal half life of 18.8+/-4.1 h. No accumulation of 1-O-pentylglycerol was observed in the brain or other organs while highest concentrations were found in liver and thymus. This was confirmed by autoradiographic studies. Five minutes after intracarotid administration, high radioactivity was found in the ipsilateral brain, whereas after 30 min radioactivity in the brain has dramatically decreased. Autoradiographic images gave evidence of biliary excretion in addition to the renal elimination. There were no signs of cleavage of the O-alkyl bond in vivo as demonstrated by HPLC analysis. In conclusion, 1-O-pentylglycerol is characterized by pharmacological properties appearing very favorable for in vivo use as a permeabilizing drug for increased drug delivery to the brain." @default.
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• W2034402080 date "2005-04-01" @default.
• W2034402080 modified "2023-09-23" @default.
• W2034402080 title "Blood–brain barrier opening with alkylglycerols: Biodistribution of 1-<i>O</i>-pentylglycerol after intravenous and intracarotid administration in rats" @default.
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• W2034402080 doi "https://doi.org/10.1080/10611860400029085" @default.
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