ABSTRACT
Plasma nontargeted metabolomics technology was developed for investigating the effect and mechanism of improving kidney deficient in mice of Polygoni Multiflori Radix Praeparata. Thirty-five ICR mice were randomly divided into the control group, the model group, the BB24 h (braising with black bean sauce for 24 hours) group, the BB32 h group, and the BB40 h group. Biochemical indices in blood plasma of mice were measured by collecting eye blood after modeling. Changes in plasma endogenous metabolites of mice from each group were determined by ultra-performance liquid chromatography-linear trap quadrupole-orbitrap XL (UPLC-LTQ-orbitrap XL), and differential metabolites were screened. The results of pharmacodynamic investigation showed that compared to the model group, the levels of estradiol increased obviously in the BB24 h (P < 0.05), and the levels of cortisol increased obviously in BB32 h (P < 0.05). The hormone level of mice with kidney deficiency was significantly improved after taking processed Polygonum multiflorum. A total of 70 differential endogenous metabolites in blood plasma of mice were identified from all treatment groups, which mainly involved glycerophospholipid meta-bolism, arachidonic acid metabolism, phenylalanine metabolism, phenylalanine, tyrosine and tryptophan biosynthesis, and linoleic acid metabolism. The study indicated that Polygoni Multiflori Radix Praeparata may play the role of tonifying liver and kidney by improving the disorder of hypothalamic-pituitary-adrenal axis and regulating lipid metabolism in mice. Correlation analysis on differential metabolites in blood plasma and the chemical constituents showed that stilbene glycosides and saccharides may be the key pharmacodynamic material basis. The present study provides a new reference and theoretical foundation for revealing the potential pharmacodynamic material basis and mechanism investigation on tonifying liver and kidney of Polygoni Multiflori Radix Praeparata. This study was carried out following the ethical guidelines and regulations for the use of laboratory animals of the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences and passed the animal experimental ethical review [No. SYXK (Jing) 2019-0003].
ABSTRACT
@#An on-line HPLC-DPPH system was developed to determine the antioxidant activity of 16 batches of Polygoni Multiflori Radix Praeparata. By analyzing the chromatographic and biological activity fingerprints of 16 batches of Polygoni Multiflori Radix Praeparata, the dose-effect relationship was established and the total antioxidant activity was quantified by activity addition.The results suggested that the online HPLC-DPPH method can evaluate the antioxidant activity of different bathches of Polygoni Multiflori Radix Praeparata, with different processing methods, aiming to provide datasupport and scientific basis forquality evaluation of Polygoni Multiflori Radix Praeparata.
ABSTRACT
To standardize the processing technology of Polygoni Multiflori Radix Praeparata and stabilize its quality, the similar change laws of Polygoni Multiflori Radix Praeparata with different processing methods and time were analyzed. The processing time of Polygoni Multiflori Radix Praeparata was studied at 24, 32, 40, 48 h, and 4 different processing methods were studied, namely stewed with black bean sauce, steamed, steamed with black bean sauce, and steamed with black bean sauce and rice wine. The content of stilbene glycosides and anthraquinones were determined by HPLC-DAD method. UV method was used to determine the content of polysaccharides, and HPLC-ELSD method was used to determine the monosaccharides and oligosaccharides. The comparative chart of content determination, cluster analysis and entropy weight TOPSIS model was used to find the similar change laws and time interval of different processing methods of Polygoni Multiflori Radix Praeparata. The results demonstrated that around 32 h, the content of nine components in Polygoni Multiflori Radix Praeparata with different processing methods had similar change laws, and the decoction pieces had a high quality, indicating that the four processing methods of Polygoni Multiflori Radix Praeparata are likely to be used as one type of decoction piece with the same name.
Subject(s)
Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Glycosides , Plant Roots , PolygonumABSTRACT
The aim of this study is to investigate the protective effects of a small molecular fraction (SMF) of Polygoni multiflori Radix Praeparata (PMRP) in a cyclophosphamide (CTX) induced anemia mouse model. Small molecular fraction of PMRP was prepared and identified by high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS). In pharmacology, we examined the peripheral hemogram and thymus and spleen index. The content of granulocyte-macrophage colony-stimulating factor (GM-CSF) in serum was mensurated by enzyme-linked immunosorbent assay (ELISA); The level of superoxide dismutase (SOD), catalase (CAT), total antioxidant capacity (T-AOC), and malondialdehyde (MDA) in serum and spleen tissue homogenate were detected, and glutathione peroxidase (GSH-PX) was assayed in spleen. The results show that SMF can significantly accelerate the recovery of peripheral hemogram, increase the activity of antioxidant enzymes and GM-CSF in serum and spleen. SMF also increases the number of spleen cells, improves bone marrow pathology. In conclusion, the SMF of PMRP promoted the recovery of hematopoietic function in a CTX-induced anemia mouse, which can support SMF to be used as an adjunct to chemotherapy to counteract its side effects.
ABSTRACT
All the Chinese patent medicines (CPMs) containing raw and processed products of Polygoni Multiflori Radix (PMR) in Chinese Pharmacopoeia and Drug Standard of Ministry of Public Health of the Peoples Republic of China were inquired and adverse drug reactions of the CPMs were searched in CNKI. And then a systematic analysis about adverse drug reactions accroding to processing, compatibility, and indication was conducted by statistical approach. The CPMs with adverse drug reactions were composed of 13 preparations containing raw products of PMR and 37 processed products containing processed products of PMR. The common adverse drug reactions of preparations containing raw products of PMR were gastrointestinal reaction, dry mouth, liver damage, allergic reactions, and palpitations, and these reactions mostly happened when these preparations were used in the treatment of hyperlipidemia and coronary heart disease. The common adverse drug reactions of preparations containing processed products of PMR were liver damage, gastrointestinal reaction, and allergic reactions, and these reactions mostly happened when these preparations were used in the treatment of white hair, hair loss, alopecia areata, weakness, anemia, coronary heart disease, and cerebrovascular disease. There was a certain negative correlation between number of herbs and incidence of adverse reaction. To sum up, incidence of adverse reactions of CPMs containing raw and processed products of PMR is high, but still lacks a clear evidence of the association between adverse reaction of preparations and the toxicity of PMR. A systematic research on the safety of CPM included PMR is needed.
ABSTRACT
AIM To establish an HPLC method for determining the contents of three constituents in Polygoni multiflori Radix Praeparata in plasma of atherosclerosis rats.METHODS After the rats were intragastrically administrated with Polygoni multiflori Radix Praeparata CMC-Na solution,the plasma was collected.The HPLC analysis was carried out on a 30 ℃ thermostatic Hypersil C1s column (250 mm ×4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-0.03％ phosphoric acid flowing at 0.9 mL/min in a gradient elution manner,and the detection wavelength was set at 280 nm.DAS2.0 software was applied to drawing concentration-time curves and calculating pharmacokinetic parameters.RESULTS Stilbene glucoside,emodin and physcion showed good linear relationships within the ranges of 61.25-6 125 μg/L (r =0.999 8),12.6-3 150 μg/L (r =0.999 3) and 24.1-6 030 μg/L (r =0.999 5),respectively.The method recoveries were 99.5％-105.8％ with the RSDs of 1.3％-3.3％,while the extraction recoveries were 87.2％-96.3％ with the RSDs of 3.2％-5.9％.The pharmacokinetic behaviors of three constituents all accorded with two-compartment model,but their contents in plasma were much lower than those in medicinal material.CONCLUSION The bioavailabilities of stilbene glucoside,emodin and physcion are relatively low in plasma of atherosclerosis rats,which may be related to constituents' intestinal absorption after intragastric administration with Polygoni multiflori Radix Praeparata.
ABSTRACT
Objective: To use the extracts from traditional Chinese medicinal materials (TCMM) for reduction of Ag+ to obtain the corresponding silver nanomaterials and study its antibacterial activity. Methods: Nano-silver solution was prepared by Rhei Radix et Rhizoma and other 15 kinds of TCMM extracts, the size and distribution of silver nanoparticles were studied using HPPS, TEM, and UV. The antibacterial activities of silver nanoparticles were investigated by disk agar diffusion method and double dilution method. Results: Preparation rate and reaction rate of silver nanoparticles prepared with the water extract of Rhei Radix et Rhizoma, Polygoni Multiflori Radix Praeparata, Moslae Herba were ideal. Prepared silver nanoparticles with diameter about 100 nm, good uniformity, and good dispersibility have the obvious inhibitory effect on the growth of Staphylococcus aureus and Escherichia coli. Among them, Polygoni Multiflori Radix Praeparata-silver nano has the strongest bacteriostatic effect. Conclusion: TCMM as a natural bio-reducing agents, can be used to prepare the silver nanoparticles.
ABSTRACT
Objective: Recently hepatotoxicity induced by Polygoni Multiflori Radix Praeparata (PMRP) frequently happened. To aim at dealing with the problems of latest increase of online shopping PMRP and lack of quality monitoring mechanism, the quality and hepatotoxicity of various batches of online shopping PMRP were analyzed, the toxicity-attenuation effects of various processing technologies of Polygoni Multiflori Radix (PMR) were compared, and the reference for clinical safe medication of PMR was provided. Methods: The quality variance of these PMRP was evaluated and the hepatotoxicity-attenuation effects of various processing technologies were compared by adopting index component content determination, chemical fingerprint, and liver cell toxicity evaluation. Results: The content of diphenylethylene glycosides in 26 batches of online shopping PMRP was 0.004%-3.442%, therein eight batches could not conform to Chinese Pharmacopoeia 2010; The chemical fingerprint similarity was between 0.052 and 0.998, therein great differences among six batches existed; The hepatotoxicity difference was significant as 9.7 times, therein the toxicity of four groups of online shopping PMRP samples was higher than that of PMR medicinal material. The toxicity of PMRP attenuated slowly using atmospheric pressure steaming method, and the toxicity by steaming 12 h declined only 13.6%; The toxicity of PMRP attenuated relatively fast by high-pressure steaming and high-pressure black soya bean steaming methods, and the toxicity by steaming 5-6 h declined by 22.1% and tended towards stability. Conclusion: The quality of online shopping PMRP varies greatly and inadequate processing method increases the liver poisoning risk of PMRP to some extent, which indicates that the researches on technology standardization of PMRP should be strengthened. As well, the high-pressure steaming method can ensure the safety of PMRP and shorten the processing time greatly, which should be expected as a promising processing method.