Identification of absorbed components and their metabolites in rat plasma after oral administration of Liujing Toutong Tablets by HPLC-Q/TOF-MS / 中草药

Objective To study the serum pharmacochemistry of Liujing Toutong Tablets (LTT). This study could be helpful to elucidate the bioactive constituents of LTT. Methods HPLC-Q/TOF-MS was used to analyze the ingredients in rats blood plasma with LTT (ig). Results By comparing the information on the total ion chromatogram, extraction chromatogram and the mass spectrogram of LTT, rat serum with drug and blank serum sample was used to confirm the constituents of LTT in vivo. As a result, a total of 46 compounds were detected in rat plasma, including 24 absorbed prototype constituents, such as puerarin, and 22 of the metabolites. Conclusion The compounds are absorbed into the blood might function as real bioactive constituents and this study can provide a scientific fundament for bioactive substances of LTT.

UPLC-Q-TOF-MS analysis on constituents of Tianshu Capsule absorbed into plasma / 中草药

To study the chemical constituents of Tianshu Capsule in vivo and in vitro. UPLC-Q-TOF-MS was used as the analytic method. The ferulic acid, caffeic acid, ligustrazine hydrochloride, gastrodin, 5-hydroxymethy furfural, and ligustilide were used as the reference compounds. The information on the total ion chromatogram, extraction chromatogram and the mass spectrogram were synthetically analyzed to confirm the constituents of Tianshu Capsule in vivo and in vitro. Twenty-four compounds from Tianshu Capsule were detected among five constituents came from Tianma and 19 constituents came from Chuanxiong. After oral administration of Tianshu Capsule, 13 compounds were absorbed into plasma. The findings obtained from the study can provide the useful information for the determination of bioactive substances and the perfection of quality standard of Tianshu Capsule.