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1.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 286-298, 2024.
Article Dans Chinois | WPRIM | ID: wpr-999186

Résumé

Gout is a metabolic disease closely associated with hyperuricemia and urate deposition. Because of the complex pathogenesis, high morbidity, multiple complications, and increasingly young patients, gout has received worldwide attention. Currently, western medicine mainly treats gout by lowering the uric acid level and reducing inflammation, which, however, causes serious adverse reactions and has contraindications. Phellodendri Chinensis Cortex (PCC) is the dried bark of Phellodendron chinense, with the effects of clearing heat, drying dampness, purging fire, detoxifying, and treating sores. Studies have shown that PCC and its active components have anti-inflammatory, pain-relieving, uric acid-lowering, and anti-gout activities, with extensive sources and high safety. PCC and its active components could prevent and treat gout through multi-targets and multi-pathways, whereas the systematic review remains to be carried out. Therefore, this paper summarized the pharmacological activities and mechanisms of PCC and its active components in the treatment of gout. The available studies have shown that PCC and its active components exert the anti-gout effect by lowering the uric acid level, reducing inflammation, alleviating oxidative stress, and regulationg intestinal flora, and protecting the kidneys. Particularly, the active components represented by alkaloids contribute obviously to the therapeutic effect of of PCC. Herein, we analyzed the problems and future development of the research on PCC, aiming to provide theoretical support and a scientific basis for the research and development of new drugs against gout.

2.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 290-298, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1016489

Résumé

Gastrointestinal motility disorder is an important cause of digestive system diseases. Patients often suffer from nausea, vomiting, gastric retention, gastroparesis, constipation, and many other symptoms, and their quality of life is seriously reduced. Prokinetic agents are routinely used in clinical practice, but their long-term use is prone to problems such as reduced efficacy and increased adverse reactions. Since the incidence of gastrointestinal diseases has continued to rise globally in recent years, there is an urgent need for clinical development of safe and effective treatment strategies. Aurantii Fructus, a traditional Chinese medicine, has the effect of smoothing Qi and eliminating distention, and it has been used to treat gastrointestinal diseases for thousands of years. In modern clinical practice, it is mainly used for the treatment and auxiliary treatment of various gastrointestinal diseases such as functional dyspepsia, functional constipation, and irritable bowel syndrome. The efficacy is remarkable, and no adverse reactions have been reported at conventional doses. Therefore, it can greatly improve the symptoms of patients with gastrointestinal diseases and improve their quality of life. Modern research has revealed that there are many active components in Aurantii Fructus, among which flavonoids have the highest content and the most types. Flavonoids are the main active components in Aurantii Fructus to regulate gastrointestinal motility. Aurantii Fructus and its active components can affect gastrointestinal hormones, neural pathways, Cajal mesenchymal cells, and other multiple mechanisms. They can adjust gastrointestinal motility and correct gastrointestinal motility disorders, showing potential application value in the treatment of gastrointestinal motility disorders. However, a comprehensive analysis of Aurantii Fructus in this aspect is still lacking. This study summarized the pharmacological activities of active components of Aurantii Fructus extract and its flavonoids, volatile oils, alkaloids, and coumarin on the regulation of gastrointestinal motility and explored the latest research progress on its mechanism. Finally, the adverse reactions of Aurantii Fructus were summarized. It aims to provide a scientific basis for the research and clinical application of Aurantii Fructus and its active components in the regulation of gastrointestinal motility.

3.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 167-175, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1012706

Résumé

ObjectiveTo analyze the effects of new integration processing method in producing area and traditional method on the composition and pharmacological action of Polygoni Multiflori Radix Praeparata(PMRP), and to illustrate the advantages of toxicity reducing and efficacy enhancing of the decoction pieces prepared by the new method. MethodFresh Polygoni Multiflori Radix(PMR) was taken from Dao-di producing area, and was processed by new integration processing method in producing area(steaming with black bean juice under pressure of 0.1 MPa and temperature at 120 ℃ for 10.5 h) and traditional method(steaming with black bean juice under water for 36 h), respectively. Samples were collected during the processing process of the two methods, For new method, the samples were collected at 0.5, 3, 5.5, 8, 10.5 h, separately. For traditional method, the samples were collected every 4 h. High performance liquid chromatography(HPLC) was used to establish fingerprint and identify common peaks, the content of polysaccharides was determined by anthrone-sulfuric acid colorimetry at 627 nm, and the contents of anthraquinones and stilbene glycosides in different processed products were determined according to the methods under the item of determination of PMR and PMRP in the 2020 edition of Chinese Pharmacopoeia. In pharmacological experiments, 90 SD rats were randomly divided into 9 groups with 10 in each group(half of male and half of female), including the blank group, and raw products, 24 h processed products under atmospheric pressure, 30 h processed products under atmospheric pressure, 8 h processed products under high pressure groups with low and high dosages(4.125, 16.5 g·kg-1). Rats were given the drug by gavage for 29 d with once a day, blood was collected from the abdominal aorta after the last administration, and the serum was isolated, the body mass and liver mass of rats were weighed and the organ index was calculated. The pathological change of liver tissue was observed by hematoxylin-eosin(HE) staining, and biochemical methods were used to detect the contents of aspartate aminotransferase(AST), alanine aminotransferase(ALT), alkaline phosphatase(ALP), γ-glutamyltransferase(GGT), lactic dehydrogenase(LDH) in serum which used as liver function indicators and the levels of superoxide dismutase(SOD), malondialdehyde(MDA), glutathione peroxidase(GSH-Px) in brain tissues which used as oxidation indicators. ResultA total of 14 common peaks were identified in the fingerprint of PMR, PMRP prepared by new method and traditional method, and three of the peaks were designated as stilbene glycoside, emodin and emodin methyl ether, respectively. The characteristic peak areas of each processed products changed significantly from 0 min to 25 min, indicating that different processing methods had an effect on the contents of components with high polarity in PMRP, and the trend of the changes of the two methods was similar, with the higher degree of change in the new method. The determination results showed that compared with the traditional method, the content of polysaccharide(a kind of beneficial component in PMRP obtained by the new method) significantly increased, while the contents of stilbene glycoside and bound anthraquinone(liver-damaging ingredients) significantly decreased. The pharmacological results showed that compared with the blank group, AST and LDH levels of male rats in the low and high dose groups of 24 h processed products under atmospheric pressure and AST level of male rats in the low and high dose groups of 8 h processed products under high pressure were significantly reduced(P<0.05, P<0.01), while compared with the raw product groups with the same dose, AST and LDH levels of male rats in the low dose group of 30 h processed products under atmospheric pressure were significantly reduced(P<0.05, P<0.01), the AST levels of male rats in the low and high dose groups of 8 h processed products under high pressure were significantly decreased(P<0.01), and there was no statistical significance in the differences of biochemical indexes of female rats in each administration group as compared with those of the blank group. ConclusionThe new integration processing method in producing area of PMRP can reach the quality of relevant regulations in 8 h. The processed products obtained by this method have more advantages than the traditional method in terms of toxicity reducing and efficacy enhancing, and energy saving to avoid the loss of ingredients, which can provide ideas for the production of high-quality decoction pieces of PMRP, and the integration processing method in producing area of other roots and rhizomes of traditional Chinese medicines.

4.
China Pharmacy ; (12): 560-565, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1012573

Résumé

OBJECTIVE To extract and isolate the four chemical components of Yao medicine Ventilago leiocarpa, and to conduct identification and content determination for them. METHODS The chemical components of V. leiocarpa were separated and purified by solvent extraction, extraction, silica gel column chromatography and preparative liquid chromatography; then the chemical structures of four isolated compounds were identified based on their spectral data. The contents of four components were determined by high performance liquid chromatography(HPLC)-quantitative analysis of multi-components by single-marker (QAMS) method, with the following chromatographic conditions: chromatographic column was Echway GowonTM C18 (250 mm× 4.6 mm, 5 μm). The mobile phase was acetonitrile-0.1% phosphoric acid for gradient elution; the detection wavelength was 269 nm, and the column temperature was 25 ℃ . Using emodin as internal reference, the relative correction factors (fi/s) between emodin and the other 3 components were established and used to calculate the content. At the same time, the content of each component was calculated with the external standard method (ESM), and the differences between these two methods were compared. RESULTS Four compounds were isolated from V. leiocarpa, and they were identified as emodin, frangulin A, pleuropyrone A, emodin-8-O-β-D-glucoside. The result of HPLC-QAMS showed that the fi/s of pleuropyrone A, emodin-8-O-β-D- glucoside and frangulin A were 1.147 2, 0.874 7 and 0.644 4, respectively. The content of these four components was measured as a good linearity (r≥0.999 6); relative standard deviation (RSD) of precision, stability and reproducibility tests were all lower than 2.00%, and average recoveries were E-mail:dearhuangjianyou@126.com 99.41%-100.46%(RSD≤2.05%). There was no significant difference between QAMS method and ESM (RSD<3.00%). CONCLUSIONS Emodin, frangulin A, pleuropyrone A and emodin- 8-O-β-D-glucoside are isolated from V. leiocarpa; among them, the last three components are all isolated from for the first time. The established HPLC-QAMS method is accurate and reliable for the determination of 4 components in V. leiocarpa, and can used for quality control of V. leiocarpa.

5.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 197-204, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1011459

Résumé

ObjectiveTo discriminate the age of Arisaema Cum Bile, the combination of headspace solid-phase microextraction (HS-SPME) with gas chromatography-mass spectrometry (GC-MS) was applied to explore the differences of volatile components of unfermented, 1-year fermented, 2-year fermented, and 3-year fermented Arisaema Cum Bile. MethodSamples with different fermentation durations were collected and HS-SPME-GC-MS technology was employed to detect the volatile components of each sample. The relative contents of detected volatile components were processed and analyzed by chemometrics methods such as principal component analysis (PCA), hierarchical cluster analysis (HCA), and partial least squares discriminant analysis (PLS-DA). ResultThe results showed that 145 volatile components were identified. Among these volatile components, the relative contents of heterocyclic, alcohols, aldehydes and aromatics were high. PCA, HCA, and PLS-DA can effectively separate Arisaema Cum Bile with four different ages. Based on variable importance in projection (VIP) value > 1, 73 markers of differential volatile components were identified. The content of 2,6,11-trimethyldodecane and m-xylene in unfermented samples was the highest, and the content difference between them and those in fermented samples was significant (P<0.05). 2,3-butanediol was detected only in 1-year samples, octane was detected only in 2-year samples, and ethyl heptanoate was detected only in 3-year samples. These components can be used as odor markers for Arisaema Cum Bile with different fermentation years. ConclusionThe identification method of volatile components of Arisaema Cum Bile was established by HS-SPME-GC-MS technology, which can realize the rapid identification of unfermented, 1-year fermented, 2-year fermented, and 3-year fermented samples, and provide a scientific basis for the standardization of processing technology and quality standards of Arisaema Cum Bile.

6.
Acta Pharmaceutica Sinica B ; (6): 579-601, 2024.
Article Dans Anglais | WPRIM | ID: wpr-1011271

Résumé

Lipid nanovehicles are currently the most advanced vehicles used for RNA delivery, as demonstrated by the approval of patisiran for amyloidosis therapy in 2018. To illuminate the unique superiority of lipid nanovehicles in RNA delivery, in this review, we first introduce various RNA therapeutics, describe systemic delivery barriers, and explain the lipid components and methods used for lipid nanovehicle preparation. Then, we emphasize crucial advances in lipid nanovehicle design for overcoming barriers to systemic RNA delivery. Finally, the current status and challenges of lipid nanovehicle-based RNA therapeutics in clinical applications are also discussed. Our objective is to provide a comprehensive overview showing how to utilize lipid nanovehicles to overcome multiple barriers to systemic RNA delivery, inspiring the development of more high-performance RNA lipid nanovesicles in the future.

7.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 236-245, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1006289

Résumé

Alzheimer's disease (AD) is one of the most common diseases in the elderly population. Its etiology involves multiple pathogenic factors and pathological links such as abnormal deposition of β amyloid protein (Aβ), hyperphosphorylation of Tau protein, abnormalities of the cholinergic system, oxidative stress, and inflammatory response. However, its specific pathogenesis has not been clarified, and no specific therapeutic drugs have been found. In recent years, more and more studies have paid attention to the potential of chemical components of traditional Chinese medicine (TCM) in the treatment of AD. However, the diversity and complexity of the chemical components of TCM may have a positive impact on multiple pathological links of AD. Researchers have isolated many active components from TCMs, and the effects of treating AD have been confirmed by modern pharmacological studies. Through literature analysis, this article found that the main chemical components of TCM with anti-AD effects were saponins (31%), flavonoids (24%), polysaccharides (20%), lactones (8%), alkaloids (7%), phenols (3%), and other compounds (7%). Among them, ginsenoside, notoginsenoside, epimedium flavones, puerarin, baicalein, schisandra polysaccharide, angelica polysaccharide, ganoderma lucidum polysaccharide, pachyman, huperzine A, berberine, andrographolide, curcumin, emodin, and gastrodin have been extensively studied in terms of their anti-AD effects, and their mechanisms of pharmacological action have been involved in many aspects of AD pathogenesis. This article reviews the anti-AD activities and possible mechanisms of chemical components of TCM, so as to provide a reference for the development of new drugs for the prevention and treatment of AD.

8.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 12-20, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1005248

Résumé

In the quality control of Chinese medicine, the detection of active components and toxic and harmful components are two important links. Although conventional methods such as high performance liquid chromatography and liquid chromatography-mass spectrometry can accurately quantify the above substances, they have shortcomings such as complicated operation, high costs, inability of detection at any time, difficult detection of insoluble and macromolecular substances. Enzyme-linked immunosorbent assay (ELISA) can adsorb antigens or antibodies on the surface of solid carriers and realize qualitative or quantitative analysis of targets by using the specific reactions of antigens and antibodies. This method is praised for the simple operation, high sensitivity, strong specificity, simple requirements for experimental equipment, a wide application range, and low costs. In recent years, ELISA has been widely used in the quality control of Chinese medicine, especially in the content determination of mycotoxins represented by aflatoxin and the qualitative and quantitative analysis of active components. ELISA plays an increasingly important role with its unique advantages, providing new methods and ideas for the rapid quality examination of large quantities of Chinese medicines. This paper reviews the research progress in ELISA for the quality control of Chinese medicine in recent years and prospects its technical development and application prospects, aiming to provide reference and research ideas for further using this method to ensure the quality, safety, and controllability of Chinese medicine.

9.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 276-286, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1003432

Résumé

Inflammatory bowel disease (IBD), consisting of ulcerative colitis and Crohn's disease, is a chronic relapsing inflammatory gastrointestinal disease closely associated with immune dysfunction. The pathogenesis of IBD is closely related to genetic susceptibility, immune system dysfunction, environmental change, and intestinal microbial dysbiosis. Modern research has found that macrophage polarization plays an important role in the development of IBD and can affect the level of inflammatory response, intestinal mucosal repair, and intestinal microbial balance, making it a potential target for IBD treatment. Increasing evidence suggests that traditional Chinese medicine and its active components can regulate macrophage polarization through multiple pathways and balance the M1/M2 macrophage ratio, thus inhibiting inflammatory response, promoting intestinal mucosal repair, and slowing down the progression of IBD. This article summarized the biological processes and targets involved in macrophage polarization and discussed its impact on IBD. It also provided a brief overview of the latest research on how traditional Chinese medicine and its active components can improve IBD by regulating macrophage polarization, so as to provide new directions and strategies for the clinical application of traditional Chinese medicine in IBD treatment.

10.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 156-163, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1003420

Résumé

ObjectiveTo screen the differential markers by analyzing volatile components in Dalbergia odorifera and its counterfeits, in order to provide reference for authentication of D. odorifera. MethodThe volatile components in D. odorifera and its counterfeits were detected by headspace gas chromatography-mass spectrometry(HS-GC-MS), and the GC conditions were heated by procedure(the initial temperature of the column was 50 ℃, the retention time was 1 min, and then the temperature was raised to 300 ℃ at 10 ℃ for 10 min), the carrier gas was helium, and the flow rate was 1.0 mL·min-1, the split ratio was 10∶1, and the injection volume was 1 mL. The MS conditions used electron bombardment ionization(EI) with the scanning range of m/z 35-550. The compound species were identified by database matching, the relative content of each component was calculated by the peak area normalization method, and principal component analysis(PCA), orthogonal partial least squares-discrimination analysis(OPLS-DA) and cluster analysis were performed on the detection results by SIMCA 14.1 software, and the differential components of D. odorifera and its counterfeits were screened out according to the variable importance in the projection(VIP) value>2 and P<0.05. ResultA total of 26, 17, 8, 22, 24 and 7 volatile components were identified from D. odorifera, D. bariensis, D. latifolia, D. benthamii, D. pinnata and D. cochinchinensis, respectively. Among them, there were 11 unique volatile components of D. odorifera, 6 unique volatile components of D. bariensis, 3 unique volatile components of D. latifolia, 6 unique volatile components of D. benthamii, 8 unique volatile components of D. pinnata, 4 unique volatile components of D. cochinchinensis. The PCA results showed that, except for D. latifolia and D. cochinchinensis, which could not be clearly distinguished, D. odorifera and other counterfeits could be distributed in a certain area, respectively. The OPLS-DA results showed that D. odorifera and its five counterfeits were clustered into one group each, indicating significant differences in volatile components between D. odorifera and its counterfeits. Finally, a total of 31 differential markers of volatile components between D. odoriferae and its counterfeits were screened. ConclusionHS-GC-MS combined with SIMCA 14.1 software can systematically elucidate the volatile differential components between D. odorifera and its counterfeits, which is suitable for rapid identification of them.

11.
Article Dans Espagnol | LILACS-Express | LILACS | ID: biblio-1551110

Résumé

Aunque los cogollos de la palma de iraca pueden ser empleados como fuente para la alimentación humana, la mayoría de la información disponible es para la producción de artesanías. Se evaluó la respuesta a la impregnación al vacío (IV) de cogollos frescos de palma de iraca (CFPI), con una solución isotónica de NaCl (0,6 %). Se utilizó la metodología de superficie de respuesta, con un diseño central compuesto ((=1), considerando las siguientes variables independientes: el diámetro de los cogollos (10-15 mm), el tiempo en la etapa de vacío T1 (3-5 minutos) a presión de vacío (4.1 kPa) y el tiempo en la etapa a presión atmosférica local (85,32 kPa), T2 (3-5 min). Las variables dependientes que se tomaron en cuenta fueron fracción volumétrica de impregnación en la etapa de vacío (X1), deformación volumétrica final (g), fracción volumétrica final (X) y porosidad eficaz (Ee). La dinámica de la IV del CFPI identificó que el proceso comporta una expansión volumétrica en la matriz, la cual, finalmente, contribuye a la transferencia de masa del líquido isotónico al interior de la estructura. La microestructura porosa del CFPI es compatible con el proceso de IV, permitiendo los siguientes parámetros de impregnación: g1 (0,451%), X1 (11,457%), g (2,569%), X (17,386%) y Ee (17,036%). La respuesta a la IV en los CFPI identifica a esta matriz alimentaria como adecuada, para la incorporación de componentes fisiológicamente activos.


Although the buds of the iraca palm could be employed as a source of human food, most of the information available is to produce handicrafts. The response to vacuum impregnation (VI) was evaluated in fresh iraca palm buds (FIPB) with an isotonic NaCl solution (0.6 %). The response surface methodology was obtained, with a central compound design (a= 1), considering the following independent variables: The diameter of the buds (10-15 mm), the time in the vacuum stage T1 (3-5 minutes) at vacuum pressure (4.1 kPa) and the time in the stage at local atmospheric pressure (85.32 kPa), T2 (3-5 min). The dependent variables considered were the volumetric fraction of impregnation in the vacuum stage (X1), the final volumetric deformation (g), the final volumetric fraction (X), and the effective porosity (Ee). FIPB VI dynamics identified that the process involves a volumetric expansion in the matrix, which ultimately contributes to the mass transfer of the isotonic liquid into the structure. The porous microstructure of the FIPB is compatible with the VI process, allowing the following impregnation parameters: g1 (0.451 %), X1 (11.457 %), g (2.569 %), X (17.386%), and Ee (17.036 %). The response to VI in FIPB identifies this food matrix as suitable for the incorporation of physiologically active components.

12.
Educ. med. super ; 37(2)jun. 2023.
Article Dans Espagnol | LILACS, CUMED | ID: biblio-1528527

Résumé

Introducción: La modalidad no presencial del proceso de enseñanza-aprendizaje se incrementó como respuesta a las condiciones creadas por la COVID-19, sin la necesaria preparación y experiencia de los docentes para implementarla. Objetivo: Proponer algunas consideraciones didácticas que tributan al adecuado manejo del docente de los componentes del proceso de enseñanza-aprendizaje en la implementación de la modalidad no presencial. Posicionamiento de los autores: La exitosa implementación de cualquier variante de modalidad no presencial dependerá de la preparación del docente, particularmente en Didáctica, al asumir las tecnologías de la información y las comunicaciones como medios de enseñanza en la misión de hacer que sus estudiantes aprendan. Conclusiones: La no presencialidad en el proceso de enseñanza-aprendizaje se considera una alternativa viable en circunstancias de pandemia u otras equivalentes, y debe ser una modalidad complementaria en la etapa posCOVID-19. Así que los profesores tendrán que replantear el proceso en todos sus componentes, en un contexto digital que ya no tiene vuelta atrás(AU)


Introduction: Within the teaching-learning process, the non-face-to-face modality was increased as a response to the conditions created by COVID-19, but without the necessary preparation and experience for professors to implement it. Objective: To propose some didactic considerations that contribute to the professor's adequate management of the components of the teaching-learning process in the implementation of the non-face-to-face modality. Authors' position: The successful implementation of any variant of the non-face-to-face modality will depend on the professor's preparation, particularly in didactics, when assuming information and communication technologies as teaching means in the mission of making their students learn. Conclusions: Within the teaching-learning process, the non-face-to-face condition is considered a viable alternative in pandemic, or other equivalent, circumstances; it should be a complementary modality in the post-COVID-19 stage. Thus, professors will have to rethink the process focusing on all its components, within a digital context that has no turning back(AU)


Sujets)
Humains , Enseignement/enseignement et éducation , Savoir
13.
China Journal of Chinese Materia Medica ; (24): 6765-6777, 2023.
Article Dans Chinois | WPRIM | ID: wpr-1008874

Résumé

In this study, ultra-performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS~E) was used to analyze the plasma components of Danzhi Xiaoyao Formula after oral administration. Forty-nine plasma components were found in the serum of rats by comparing the compound extract, drug-containing serum, and blank serum. Components, such as 6-hydroxycoumarin, poricoic acid F, deoxoglabrolide, 30-norhederagenin, kanzonol R, 3',6'-di-O-galloylpaeoniflorin, 16α-hydroxytrametenolic acid, 16-deoxyporicoic acid B, 3-O-acetyl-16α-hydroxytrametenolic acid, and 16α,25-dihydroxydehydroeburiconic acid, were first found in rat serum. Behavioral tests, including the tail suspension test, novel object recognition test, and novelty-suppressed feeding test, were conducted for behavioral analysis. It was confirmed that this formula had therapeutic effects on perimenopausal depression. Furthermore, in combination with the network pharmacology method, 53 core targets including MAPK1, HRAS, AKT1, EGFR, and ESR1 were screened, and these targets participated in 165 signaling pathways, including PI3K-AKT, AMPK, VEGFA, MAPK, and HIF-1. In summary, the potential effects of Danzhi Xiaoyao Formula in treating perimenopausal depression are associated with mechanisms in accelerating inflammation repair, improving neuroplasticity, affecting neurotransmitters, regulating estrogen levels, and promoting new blood vessel formation.


Sujets)
Animaux , Rats , Chromatographie en phase liquide à haute performance , Dépression/traitement médicamenteux , Pharmacologie des réseaux , Périménopause , Phosphatidylinositol 3-kinases , Médicaments issus de plantes chinoises/pharmacologie , Simulation de docking moléculaire
14.
China Journal of Chinese Materia Medica ; (24): 6066-6074, 2023.
Article Dans Chinois | WPRIM | ID: wpr-1008805

Résumé

This study comprehensively analyzed the active components of Sanhan Huashi Formula using qualitative and quantitative mass spectrometry techniques, laying the foundation for understanding its pharmacological substance basis. UHPLC-LTQ-Orbitrap-MS and GC-MS technologies were used to analyze and identify the volatile and non-volatile components in Sanhan Huashi Formula. UHPLC-QQQ-MS/MS technology was used to simultaneously determine the content of 27 major active components in the formula. The results showed that 308 major chemical components were identified in Sanhan Huashi Formula, among which 60 compounds were identified by comparing with reference standards, mainly including alkaloids, flavonoids, coumarins, triterpenoid saponins, amino acids, and nucleosides. GC-MS technology preliminarily identified 52 volatile compounds, with γ-eudesmol and β-eudesmol as the main components. The quantitative results demonstrated good linearity(r>0.99) for the 27 active components, indicating the stability, simplicity, and reliability of the established method. Among them, amygdalin, nodakenin, arecoline, ephedrine, and pseudoephedrine had relatively high content and were presumably the main pharmacologically active substances. In conclusion, this study systematically and comprehensively characterized the major chemical components and patterns in Sanhan Huashi Formula, providing a basis for understanding its pharmacological mechanisms and clinical applications.


Sujets)
Spectrométrie de masse en tandem , Chromatographie en phase liquide à haute performance , Chromatographie gazeuse-spectrométrie de masse , Reproductibilité des résultats , Médicaments issus de plantes chinoises/composition chimique
15.
China Journal of Chinese Materia Medica ; (24): 6058-6065, 2023.
Article Dans Chinois | WPRIM | ID: wpr-1008804

Résumé

The poor solubility of insoluble components of traditional Chinese medicine(TCM) is an important factor restricting the development of its preparations. Natural polysaccharides of TCM can be used as functional components to increase the solubility of insoluble components. Epimedium flavonoid secondary glycoside components(EFSGC) have been shown to have positive effects on the prevention and treatment of osteoporosis, but they exhibit poor solubility. Therefore, the strategy of solubilizing EFSGC with TCM polysaccharides was adopted, and its effect on the permeability and stability of EFSGC was evaluated in this study. Based on the equilibrium solubility experiment of EFSGC, it was found that Panax notoginseng crude polysaccharide(PNCP) had the best solubilization effect on EFSGC among the ten kinds of TCM polysaccharides, which increased the solubility of EFSGC from 0.8 mg·mL~(-1) to 13.3 mg·mL~(-1). It should be noted that after the solubilization of EFSGC by preparation technology, the effects on permeability and stability should be considered. Therefore, this study also investigated these two properties. The results showed that PNCP increased the effective transmittance of EFSGC from 50.5% to 71.1%, which could increase the permeability of EFSGC significantly. At the same time, it could improve the stability of EFSGC in the simulated gastric juice environment. In order to explain the solubilization mechanism of PNCP on EGSGC, critical micelle concentration, particle size, potential, differential scanning calorimetry, and infrared spectroscopy were analyzed. It was preliminarily inferred that the mechanism was as follows: PNCP and EFSGC could self-assemble into aggregates for solubilization by intermolecular hydrogen bonding interaction in water. In summary, PNCP can not only improve the solubility of EFSGC but also improve its permeability and stability. This study lays the foundation for the application of TCM polysaccharides as a functional component to solubilize insoluble components.


Sujets)
Médecine traditionnelle chinoise , Flavonoïdes/composition chimique , Hétérosides , Epimedium/composition chimique , Solubilité , Glucosides cardiotoniques , Polyosides/composition chimique
16.
China Journal of Chinese Materia Medica ; (24): 6030-6038, 2023.
Article Dans Chinois | WPRIM | ID: wpr-1008801

Résumé

This study aimed to explore the correlation between rhizosphere soil microorganisms of wild Arnebia euchroma and the content of medicinal components to provide guidance for the selection of the ecological planting base. The total DNA of rhizosphere soil microorganisms of wild A. euchroma was extracted, and the microbial community structure of rhizosphere soil microorganisms was analyzed by IlluminaMiseq high-throughput sequencing technology. The content of total hydroxynaphthoquinone pigment and β,β'-dimethylacrylalkannin in medicinal materials was determined by high-performance liquid chromatography(HPLC). The physicochemical pro-perties of rhizosphere soil of wild A. euchroma in main producing areas were determined, and the correlation of soil microbial abundance with index component content and soil physicochemical properties was analyzed by SPSS software. The results showed that the species composition of rhizosphere fungi and bacteria in A. euchroma from different habitats was similar at the phylum and genus levels, but their relative abundance, richness index(Chao1), and community diversity(Simpson) index were different. Correlation analysis showed that the content of available phosphorus in soil was positively correlated with the content of total hydroxynaphthoquinone pigment and β,β'-dimethylacrylalkannin, and the abundance of five fungal genera such as Solicoccozyma and six bacterial genera such as Pseudo-nocardia and Bradyrhizobium was positively correlated with the content of medicinal components in medicinal materials. The abundance of Bradyrhizobium was significantly positively correlated with the content of β,β'-dimethylacrylalkanin. The abundance of fungi such as Archaeorhizomyces was significantly positively correlated with the content of available phosphorus in rhizosphere soil, and Bradyrhizobium was significantly negatively correlated with soil pH. Therefore, the abundance of fungi and bacteria in the rhizosphere of A. euchroma has a certain correlation with the medicinal components and the physicochemical properties of the rhizosphere soil, which can provide a scientific basis for the selection of ecological planting bases in the later stage.


Sujets)
Rhizosphère , Microbiologie du sol , Bactéries/génétique , Phosphore , Sol , Boraginaceae
17.
China Journal of Chinese Materia Medica ; (24): 5509-5518, 2023.
Article Dans Chinois | WPRIM | ID: wpr-1008747

Résumé

This study aims to compare the chemical constituents in 24 batches of Artemisiae Argyi Folium samples collected from three different Dao-di producing areas(Anguo in Hebei, Nanyang in Henan, and Qichun in Hubei). An ultra-performance liquid chromatography(UPLC) method was established to determine the content of 13 nonvolatile components, and headspace-gas chromatography-mass spectrometry(HS-GC-MS) was employed for qualitative analysis and comparison of the volatile components. The content of phenolic acids in Artemisiae Argyi Folium was higher than that of flavonoids, and the content of nonvolatile components showed no significant differences among the samples from the three Dao-di producing areas. A total of 40 volatile components were identified, and the relative content of volatile components in Artemisiae Argyi Folium was significantly different among the samples from different Dao-di producing areas. The principal component analysis and partial least squares discriminant analysis identified 8 volatile components as the potential markers for discrimination of Artemisiae Argyi Folium samples from different Dao-di producing areas. This study revealed the differences in the chemical composition of Artemisiae Argyi Folium samples from three different Dao-di producing areas, providing analytical methods and a scientific basis for the discrimination and quality evaluation of Artemisia Argyi Folium in different Dao-di producing areas.


Sujets)
Chromatographie gazeuse-spectrométrie de masse , Chromatographie en phase liquide à haute performance/méthodes , Médicaments issus de plantes chinoises/composition chimique , Flavonoïdes/analyse , Feuilles de plante/composition chimique , Artemisia/composition chimique
18.
China Journal of Chinese Materia Medica ; (24): 4675-4685, 2023.
Article Dans Chinois | WPRIM | ID: wpr-1008634

Résumé

The Compound Cheqian Tablets are derived from Cheqian Power in Comprehensive Recording of Divine Assistance, and they are made by modern technology with the combination of Plantago asiatica and Coptis chinensis. To investigate the material basis of Compound Cheqian Tablets in the treatment of diabetic nephropathy, in this study, the chemical components of Compound Cheqian Tablets were characterized and analyzed by UPLC-Q-TOF-MS/MS, and a total of 48 chemical components were identified. The identified chemical compounds were analyzed by network pharmacology. By validating with previous literature, six bioactive compounds including acteoside, isoacteoside, coptisine, magnoflorine, palmatine, and berberine were confirmed as the index components for qua-lity evaluation. Furthermore, the content of the six components in the Compound Cheqian Tablets was determined by the "double external standards" quantitative analysis of multi-components by single marker(QAMS), and the relative correction factor of isoacteoside was calculated as 1.118 by using acteoside as the control; the relative correction factors of magnoflorine, palmatine, and berberine were calculated as 0.729, 1.065, and 1.126, respectively, by using coptisine as the control, indicating that the established method had excellent stability under different conditions. The results obtained by the "double external standards" QAMS approximated those obtained by the external standard method. This study qualitatively characterized the chemical components in the Compound Cheqian Tablets by applying UPLC-Q-TOF-MS/MS and screened the pharmacodynamic substance basis for the treatment of diabetic nephropathy via network pharmacology, and primary pharmacodynamic substance groups were quantitatively analyzed by the "double external stan-dards" QAMS method, which provided a scientific basis for clarifying the pharmacodynamic substance basis and quality control of Compound Cheqian Tablets.


Sujets)
Humains , Spectrométrie de masse en tandem , Berbérine/pharmacologie , Chromatographie en phase liquide à haute performance/méthodes , Pharmacologie des réseaux , Néphropathies diabétiques , Médicaments issus de plantes chinoises/composition chimique , Contrôle de qualité , Comprimés
19.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 275-282, 2023.
Article Dans Chinois | WPRIM | ID: wpr-964969

Résumé

Malignant tumor poses a threat to human health and life. The incidence and fatality rate of malignant tumor have been on the rise. The currently available therapies are radiotherapy and chemotherapy, which cause severe adverse reactions and irreversible damage and thus influence the quality of life of patients. Therefore, it is urgent to find new, safe and effective antitumor drugs. Chinese medicinals are safe with little adverse reactions and long-lasting effect in the treatment of tumor, which have attracted the attention of scholars. Amid the advancement of medical research, more and more anti-tumor components have been extracted from Chinese medicinals. Phellinus is a valuable Chinese medicinal material, and the chemical components mainly include polysaccharides, flavonoids, triterpenes, and polyphenols, which have anti-inflammatory, hypoglycemic, liver-protecting, and anti-tumor effect. The chemical components of Phellinus can inhibit various malignant tumors such as lung cancer, gastric cancer, colon cancer, and melanoma. It exerts the anti-tumor effect by inhibiting proliferation and metastasis of tumor cells, inducing apoptosis and autophagy of the cells, suppressing tumor angiogenesis, and regulating the immunity. In addition, it can enhance efficacy, reduce toxicity, and boost the sensitivity in the radiotherapy and chemotherapy. In this paper, articles were retrieved from China National Knowledge Infrastructure (CNKI), Web of Science, Pubmed, and Google Scholar with keywords such as "Phellinus, chemical components, and anti-tumor", and then the chemical components of Phellinus and the anti-tumor mechanisms were summarized. The findings are expected to lays a basis for further development and clinical application of this medicinal.

20.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 252-261, 2023.
Article Dans Chinois | WPRIM | ID: wpr-962649

Résumé

Liver fibrosis is a wound healing response that occurs in the setting of chronic liver injury and is caused by imbalance in the synthesis and degradation of extracellular matrix (ECM). If left untreated, it can progress to liver cirrhosis and hepatocellular carcinoma. The activation of hepatic stellate cell (HSC) is now well established as a central driver of liver fibrosis. The activated HSC will transform into myofibroblasts that produce ECM protein. Transforming growth factor-β1 (TGF-β1) can induce the activation of hepatic stellate cell (HSC), and TGF-β1/Smads signaling pathway is one of the important pathways to promote liver fibrosis. Non-coding RNA (ncRNA) does not encode proteins during the transcription but plays an important regulatory role in the post-transcriptional process of genes. Accumulating evidence shows that the occurrence of liver fibrosis is closely related to the abnormal expression of ncRNA which participates in the activation of HSC by regulating TGF-β1 signal transduction and then affects the process of liver fibrosis. MiRNA-mediated TGF-β1/Smads signaling pathway can not only promote liver fibrosis but also play a role in anti-fibrosis. Long non-coding RNA (lncRNA) not only promotes the development of liver fibrosis by binding to target genes but also enhances TGF-β1 signal transduction by acting as competitive endogenous RNA. circular RNA (circRNA) acts as a ''sponge'' to regulate TGF-β1/Smads pathway, thereby inhibiting HSC activation and exerting the anti-liver fibrosis effect. Chinese medicinal plays an essential part in the prevention and treatment of liver fibrosis, and the active components can inhibit TGF-β1/Smads pathway by regulating the expression of miRNA, thus alleviating liver fibrosis. This article reviews the role and mechanism of miRNA-, lncRNA- and circRNA-mediated TGF-β1/Smads signaling pathway in liver fibrosis and summarizes the anti-liver fibrosis effect of active components of Chinese medicinals by regulating miRNA-mediated TGF-β1/Smads signaling pathway, which can serve as a reference for clinical treatment of liver fibrosis and the development of new drugs.

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