title: Valproate metabolite concentrations in brain increase with chronic administration of sodium valproate.
abstract: Rats were treated chronically with sodium valproate for varying periods of time up to eight weeks. A statistically significant negative correlation between plasma concentrations of valproate-derived substances (VDS) and length of treatment was observed while a statistically significant positive correlation was found between brain VDS concentration and length of treatment. Liver VDS concentrations showed a tendency to decrease with time but this trend was not statistically significant. A new procedure was developed to measure the tissue levels of VDS.
mesh_terms: D000818:Animals; D001835:Body Weight / Q000187:drug effects; D001921:Brain / Q000378:metabolism*; D007700:Kinetics; D008099:Liver / Q000378:metabolism; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors; D014635:Valproic Acid / Q000008:administration & dosage* / Q000097:blood / Q000378:metabolism* / Q000494:pharmacology
chemical_list: D014635:Valproic Acid