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Epilepsy is a chronic brain disease characterized by seizures， and is one of the most common nervous system diseases in clinic practice with the recurrent， transient， and refractory characteristics. Clinically， western medicine therapy is mainly adopted in the treatment of epilepsy， but it is not conducive to long-term use for patients on account of severe side effects， which can result in abnormalities in the digestive system， central nervous system， hematopoietic system， urinary system， and liver function to varying degrees. Syndrome differentiation is usually used for the treatment of epilepsy by traditional Chinese medicine （TCM）， which can avoid the side effects of western medicine treatment on the basis of improving patients' syndromes. The literature on TCM in the treatment of epilepsy in China and abroad indicates that the syndrome differentiation in TCM is often based on phlegm， blood stasis， wind， and deficiency， and the treatment methods include acupuncture， acupoint catgut embedding， moxibustion， Chinese medicine monomer， drug pair， and compound decoction. The various treatments of TCM play an important role in the comprehensive treatment of epilepsy through multiple channels and links， such as reducing the degree and number of seizures. This paper comprehensively summarized the clinical experience of TCM in the treatment of epilepsy， systematically expounded various treatment methods and ideas of TCM in the treatment of epilepsy， and deeply discussed the mechanism of TCM in the treatment of epilepsy， aiming to provide a theoretical basis for the clinical formulation of a reasonable individualized treatment plan for epilepsy and diversified ideas for the more effective treatment of epilepsy by TCM.
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OBJECTIVE To establish H PLC fingerprint of Rheum palmatum before and after steaming with wine ，and to determine the contents of 3 differential components. METHODS HPLC method was used to establish the fingerprints of 15 batches of R. palmatum （before wine-steaming ）and prepared rhubarb （after wine-steaming ）and the similarity evaluation was conducted. The chemical pattern recognition analysis was carried out by principal component analysis ，cluster analysis ，partial least squares- discriminant analysis and orthogonal partial least squares-discriminant analysis. The contents of gallic acid ，resveratrol-4′-O- glucoside and resveratrol- 4′-O-（6″-galloyl）-glucoside in 30 batches of samples were determined. RESULTS In the fingerprint study，48 common peaks were demarcated for R. palmatum and 47 for prepared rhubarb as well as 17 common peaks were identified by reference substance. Cluster analysis and principal component analysis showed that R. palmatum derived from Qinghai before and after steaming with wine could be distinguished from those from Sichuan and Gansu. The results of content determination showed that the contents of 3 differential components in R. palmatum derived from Qinghai before and after steaming with wine were higher than those from other two production areas ；the contents of gallic acid in prepared rhubarb derived from those production areas were higher than R. palmatum ；the contents of resveratrol- 4′-O-glucoside and resveratrol- 4′-O- （6″-galloyl）-glucoside in R. palmatum derived from those production areas were higher than prepared rhubarb. CONCLUSIONS Fingerprint and content determination method established in this study can quickly ，scientifically and accurately evaluate the quality of R. palmatum from different producing areas before and after wine steaming ，which provide a basis for the processing specification and quality control of R. palmatum .
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Worldwide, gastric cancer is the second leading cause of cancer deaths and the fifth most common malignant tumor. Gastric cancer is believed to be caused by a variety of factors, such as genetics, epigenetics, and environmental influences. Among the pathogenic factors, inflammation has been considered as one of the main risk factors for gastric cancer. There are currently limited ways to prevent gastric cancer. Although the combined application of aspirin and non-steroidal anti-inflammatory drugs can reduce the risk, it has great side effects and can easily cause gastric perforation or gastric bleeding. Therefore, an alternative plan is urgently needed. Curcumin is the yellow pigment in the rhizome of the plant turmeric. Current studies have found that curcumin has a protective effect on gastric mucosal damage caused by non-steroidal anti-inflammatory drugs, gastric mucosal damage in rats, and gastric mucosal damage caused by stress bleeding and Helicobacter pylori infection. Curcumin shows significant anti-inflammatory and anti-cancer activities by regulating DNA methylation, histone modification, nuclear factor erythrocyte 2 related factor 2 and other related signal pathways. In this article, the latest evidence of curcumin for epigenetic changes in gastric cancer and its potential contribution to gastric cancer were discussed.
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AIM To study the flavonoids from the leaves of Astragalus membranaceus (Fish.) Bge..METHODS The ethyl acetate and n-butyl alcohol fractions of 75％ ethanol extract from A.membranaceus leaves were isolated and purified by silica,ODS and preparative HPLC column,then the structures of obtained compounds were identified by spectral data.RESULTS Thirteen compounds were isolated and identified as quercetin (1),quercetin-3-O-β-D-glucopyranoside (2),rhamnocitrin-3-O-β-D-glucopyranoside (3),rhamnocitrin-3-O-β-neohesperidoside (4),rhamnocitrin-3-O-3-D-glucopyranoside (1'''→2'')-β-D-apiofuranosyl (5),complanatuside (6),glycitein (7),4',7-dihydroxy-3-methoxy isoflavone (8),genistein (9),calycosin-7-O-β-D-glucopyranoside (10),genistin (11),glycitin (12),tiliroside (13).CONCLUSION Compounds 5,8,13 are isolated from genus Astragalus for the first time,and compound 2 is first isolated from this plant.
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This study was aimed to optimize the purification technology for Sambucus williamsii Hance. With the morroniside as a marker, the purification technology for Sambucus williamsii Hance was optimized by different types of macroporous resin. The results showed that the optimum purification technology was that, the extract of less than 1:250 (morroniside:resin) was adsorbed and the AB-8 resin was washed with distilled water, and then the morroni-side was eluted from the macroporous resin with 10% ethanol. And the content of the morroniside was more than 50%. It was concluded that the purification technology was simple, reliable, repeatable and suitable for industrial production.
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Objective To study the chemical constituents of the EtOAc soluble fraction obtained from the stems and branches of Euonymus alatus with anti-myocardial ischemic effect. Methods Chemical constituents were isolated and purified by solvent extraction together with various chromatographic techniques, and the structures were identified by physicochemical properties and spectral analyses. ResultsFive compounds, 1-[3-?-D-glucopyranosyloxy)-4, 5-dihydroxyphenyl]-ethanone (Ⅰ), phenethyl alcohol 8-O-?-D-glucopyranosyl-(1→2)-?-D-glucopyranoside (Ⅱ), eugenyl-O-?-D-glucopyranoside (Ⅲ), hyperin (Ⅳ), and hesperidin (Ⅴ) were isolated. Conclusion Compound Ⅰ is determined as a new compound named guijianyuside. Compounds Ⅱ and Ⅲ are isolated from this plant for the first time.
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Objective To observe the protective effects of various extracts from Flos Daturae (FD), including active fraction (AF-FD), withanolides constituents (WC-FD), and flavonoids constituents (FC-FD) on Chinese hamster ovary (CHO) cells against cytotoxicity induced by DMSO. Methods The survival rate of CHO cells was examined by MTT assay and LDH leakage assays. Results Using MTT assay, coincubation of CHO cells with 3% DMSO for 24 h resulted in a significant reduction of survival rate of CHO cells. AF-FD was tested in a range of 10—80 ?g/mL to improve the survival rate of CHO cells in a dose-dependent manner. FC-FD (2.5—20 ?g/mL), but not WC-FD (30—120 ?g/mL), could significantly relieve the injury induced by 3% DMSO in CHO cells. In the measurement of LDH leakage, coincubation of CHO cells with 4.5% DMSO for 24 h obviously increased LDH release. However, all the compounds tested, including AF-FD (10—80 ?g/mL), WC-FD (30—120 ?g/mL), and FC-FD (2.5—20 ?g/mL) had no effect on LDH leakage induced by 4.5% DMSO. Conclusion The findings suggest that the FC-FD may protect CHO cells from DMSO cytotoxicity assessed by MTT assay, which may be associated with improving mitochondrial function, but not protecting the membrane injury of CHO cells.