オウレンエキス又は組織培養オウレンエキス及び甘草エキスとの併用経口投与後の血漿中ベルベリン濃度の比較検討

概要

論文の詳細を見る
The present study was carried out to evaluate the bioequivalence between Coptidis Rhizoma and the cultured cells of Coptis japonica MAKINO var. dissecta NAKAI to compare the concentration of berberine in the rat plasma after oral administration of both aqueous extracts. The concentration of berberine in the plasma after oral administration of both extracts was determined by HPLC. It was found that the values of time required for the maximum concentration (T_<max>), the maximum concentration (C_<max>) and the area under the plasma-time curve (AUC_<24h>) of berberine in the rat plasma after oral administration of both extracts were about the same. It was also found that the values of T_<max>, C_<max> and AUC_<24h> of berberine after oral administration of both extracts and an aqueous extract of Glycyrrhizae Radix were about the same as that of individual administration of both extracts. From these results, to evaluate the bioequivalence between Coptidis Rhizoma and cultured cells, it is important that the values of T_<max>, C_<max> andAUC_<24h> of berberine after oral administration of both extracts are not different, and about the same values of berberine by the combined use of both extracts and the aqueous extract of other crude drugs are required.
社団法人日本薬学会の論文
1993-01-25