peoniflorin and loganin

Qiangshen tablet, an important prescription consisting of 14 kinds of Chinese herbal medicines, has been used for decades to treat kidney yang deficiency syndrome (KYDS) in China. Qiangshen tablet has been recorded in ChP (2015 edition) and possesses the effect of strengthening yang, invigorating qi and tonifying kidneys. In this research, a simple, reliable and specific method was established for simultaneous determination of stachydrine, psoralen, isopsoralen, morroniside, paeoniflorin and loganin in normal and KYDS rat plasma after intragastric administration of a Qiangshen tablet suspension by UPLC-MS/MS. Protein precipitation (PP) by acetonitrile and liquid-liquid extraction (LLE) by ethyl acetate - n-butanol (1: 1, v/v) were used for pretreatment of plasma samples. Chromatographic separation of two IS (Internal Standard) and six analytes was achieved using an ACQUITY UPLC® BEH C

Topics: Animals; Chromatography, High Pressure Liquid; Drug Monitoring; Drugs, Chinese Herbal; Ficusin; Furocoumarins; Glucosides; Glycosides; Iridoids; Male; Metabolome; Monoterpenes; Proline; Rats; Rats, Sprague-Dawley; Tablets; Tandem Mass Spectrometry; Yang Deficiency

Simultaneous determination method of four marker components, paeoniflorin, loganin, 5-hydroxymethyl-2-furaldehyde and paeonol in traditional herbal medicine, Yukmijihwang tang, was developed to achieve rapidly and systematic quality control by high performance liquid chromatography coupled with diode array detection. To develop this high performance liquid chromatography method, C(18) column (5 microm, 120 A, 4.6 mm x 150 mm) was used with gradient elution of water and methanol as mobile phase. Validation of the chromatography method was evaluated by linearity, recovery, and precision test. Calibration curves of standard components showed excellent linearity with R(2) > 0.9990. Limits of detection and limits of quantification were in the ranges 0.01-0.02 and 0.04-0.07 microg/mL, respectively. The relative standard deviations of data of the intra-day and inter-day experiments were less than 1.15% and 3.76%, respectively. The results of recovery test were found to range from 94.88 to 107.43% with relative standard deviation values 0.07-2.66%. The results of validation suggested that this method was very accurate and stabilized.

Topics: Acetophenones; Benzoates; Bridged-Ring Compounds; Chromatography, High Pressure Liquid; Furaldehyde; Glucosides; Iridoids; Medicine, Korean Traditional; Molecular Structure; Monoterpenes; Plant Preparations; Quality Control; Reference Standards; Reproducibility of Results

To investigate the effects of four original constituents (Loganin, Morroniside, Peoniflorin, Paeonol) of Liu-wei Di-huang pills on the proliferation and differentiation of rat preadipocyte, and optimize the best concentration by the orthogonal test.. The rat preadipocytes were cultured, then above four original constituents according to 4 factors and 3 levels to make L9 (3(4)) orthogonal test, and the control was performed at the same time. The proliferation of preadipocytes was determined by MTT method, and the accumulation of cellular lipid was determined by Oil Red O staining, the differences between factors and variances were compared by the value of absorbance.. The combination of four original constituents of Liu-wei Di-huang pills could stimulate rat preadipocyte proliferation and inhibited its lipid accumulation. Both the effects were highly significant (P < 0.01) with the combination of A3 B1 C3 D2; Compared with the monosomic group, the effects of the A3 B1 C3 D2 was highly significant (P < 0.01).. Compared with the monosomic group, the effects of the combination of the four original constituents of Liu-wei Di-huang pills on the proliferation and differentiation of rat preadipocyte were highly significant. This combination consists of Loganin, morroniside with high doses, Paeonol, Peoniflorin with mid-dose and low-dose, respectively. Regnesent the overall regulatory role of synergy and officiencg.

Topics: Acetophenones; Adipocytes; Animals; Benzoates; Bridged-Ring Compounds; Cell Differentiation; Cell Proliferation; Cells, Cultured; Drug Combinations; Drug Synergism; Drugs, Chinese Herbal; Fats; Glucosides; Glycosides; Iridoids; Male; Monoterpenes; Plants, Medicinal; Rats; Rats, Wistar

Similarity analysis based on fingerprints has been commonly used in quality consistency evaluation of herbal medicines. However, very little efforts have been paid in interpreting of the differences in the fingerprints for the purpose of quality control. In this study, a facile and reproducible HPLC-fingerprint of Liuwei Dihuang Pills (LWPs) was developed. Both similarity analysis and Principal Component Analysis (PCA) were employed to evaluate quality consistencies of LWPs produced by five manufacturers. Contribution plots generated by PCA were performed to interpret differences in the chromatograms of samples from different groups and some peaks which importantly contribute to classification were separated and identified. Then, differences in these samples were verified by quantitative analysis and the way to improve quality consistency was discussed. TCM was usually complex in chemical constituents, it is difficult to identify and quantify all of them. Our study demonstrated that the combination of fingerprints of TCM and PCA not only offered a powerful way to quality consistency evaluation of TCM preparations, but also might simplify the process of quality control by quantitation of some important constituents.

Topics: Benzoates; Bridged-Ring Compounds; Chromatography, High Pressure Liquid; Drugs, Chinese Herbal; Evaluation Studies as Topic; Glucosides; Iridoids; Mass Spectrometry; Medicine, Chinese Traditional; Molecular Structure; Molecular Weight; Monoterpenes; Principal Component Analysis; Quality Control; Spectrometry, Mass, Electrospray Ionization

A micellar electrokinetic chromatography (MEKC) method for the simultaneous determination of four bioactive constituents (morroniside, loganin, paeoniflorin and paeonal) in the Chinese patent medicine Liuwei Dihuang Pills is established. A carrier composed of 0.2M boric acid, 0.02 M sodium dodecyl sulfate (SDS) and 5% acetonitrile (pH was adjusted to 10.5 with 0.1 M NaOH) is found to be the most suitable electrolyte for this separation. The four constituents in Liuwei Dihuang Pills can be easily determined within 16 min. Optimization of separation is realized with the univariate approach by studying the effects of four factors relevant to run buffer on migration times.

Topics: Acetonitriles; Benzoates; Boric Acids; Bridged-Ring Compounds; Buffers; Chloramphenicol; Chromatography, Micellar Electrokinetic Capillary; Drug Carriers; Drugs, Chinese Herbal; Glucosides; Glycosides; Humans; Hydrogen-Ion Concentration; Iridoids; Molecular Structure; Monoterpenes; Reference Standards; Reproducibility of Results; Sodium Dodecyl Sulfate; Time Factors

To establish a RP-HPLC method for determination of glycosides in Traditional Chinese Medicine Liu-wei Di-huang.. The samples were analyzed on an ODS column at 30 degrees C, with mobile phase of methanol/water (33:67) at flow rate 1.0 mL.min and detection at wavelength of 236 nm.. Three major components reached base-line separation and were identified to be mononiside, loganin, paeoniflorin. Respectively for the three components, linear correlations were found between peak areas and concentrations in the ranges of 7.4-60, 7.7-62 mg.L-1 and 8.5-68 mg.L-1, and the recoveries were 98.8%, 98.3%, 99.6%.. The established method is proved to be suitable for simultaneous quantification of three major glycosidic components in Liuwei Dihuang decoction and can be used for evaluation of the quality of Liuwei Dihuang preparations.

Topics: Benzoates; Bridged-Ring Compounds; Chromatography, High Pressure Liquid; Cornus; Dioscorea; Drug Combinations; Drugs, Chinese Herbal; Glucosides; Iridoids; Monoterpenes; Plants, Medicinal; Quality Control; Rehmannia