acteoside and Renal-Insufficiency--Chronic

Cornus officinalis-Rehmannia glutinosa herb couple is widely used herb medicine in clinical practice to treat chronic kidney disease (CKD). However, the in vivo integrated metabolism of its main bioactive components in CKD rats remains unknown. In this study, UPLC-Q-TOF/MS technique combined with Metabolynx

Topics: Administration, Oral; Animals; Case-Control Studies; Chromatography, High Pressure Liquid; Cornus; Feces; Glucosides; Glycosides; Iridoid Glucosides; Iridoids; Male; Phenols; Plant Extracts; Rats; Rehmannia; Renal Insufficiency, Chronic; Tandem Mass Spectrometry

A sensitive and rapid method for determination of loganin, morroniside, catalpol and acteoside in rat plasma after oral administration of Rehmannia glutinosa Libosch and Cornus officinalis Sieb drug pair based on ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS). Chromatographic separation was achieved using an Acquity UPLC BEH C18 column (100mm×2.1mm, 1.7μm) at a flow rate of 0.4mL/min, using gradient mode containing 0.1% formic acid in water and acetonitrile were used as the mobile phase A and B. Loganin, morroniside, catalpol, acteoside and the internal standard (chloramphenicol) were detected by selected reaction monitoring in the negative ion mode with the mass transition of m/z 451.0→179.0 (morroniside), m/z 435.0→227.0 (loganin), m/z 407.1→199.1 (catalpol), m/z 623.2→161.0 (acteoside) and m/z 320.8→151.9 (chloramphenicol), respectively. All calibration curves showed good linearity (r>0.991). The precision was evaluated by intra-day and inter-day assays and the RSD% were all within 9.58%. The recovery ranged from 67.62 to 80.14%. The method was successfully applied to pharmacokinetic study of the analytes in normal and doxorubicin-induced chronic kidney disease rat plasma.

Topics: Administration, Oral; Animals; Chromatography, High Pressure Liquid; Cornus; Drugs, Chinese Herbal; Glucosides; Glycosides; Iridoid Glucosides; Iridoids; Limit of Detection; Male; Mass Spectrometry; Phenols; Rats; Rats, Sprague-Dawley; Rehmannia; Renal Insufficiency, Chronic

In this study, a sensitive and robust ultra-performance liquid chromatography-mass spectrometry method with multiple-reaction monitoring mode was developed, validated, and applied to determine pharmacokinetics of catalpol and acteoside in normal and doxorubicin-induced chronic kidney disease rats after oral administration of Rehmannia glutinosa extract. The lower limits of quantification for catalpol and acteoside in rat plasma were 2.62 and 0.61 ng/mL, with a signal-to-noise ratio of ≥10. Precision and accuracy studies showed that catalpol and acteoside plasma concentrations were within the 10% range in all studies. The extraction recoveries of catalpol and acteoside were both >68.24% and the matrix effects ranged from 96.59 to 101.62%. The method was successfully applied to the pharmacokinetic study of catalpol and acteoside after oral administration of RG extract to normal and model rats, respectively. This study might further support the traditional use of RG to treat kidney diseases clinically.

Topics: Administration, Oral; Animals; Chromatography, High Pressure Liquid; Drug Stability; Drugs, Chinese Herbal; Glucosides; Iridoid Glucosides; Linear Models; Male; Mass Spectrometry; Phenols; Rats; Rats, Sprague-Dawley; Rehmannia; Renal Insufficiency, Chronic; Reproducibility of Results; Sensitivity and Specificity