Traditional Chinese Medicine Decoction Pieces Research Articles

Effects of Different Storage Times on the Stability of 12 Traditional Chinese Medicine Decoction Pieces.

As storage time increases, the quality of traditional Chinese medicines (TCMs) may change, and stability is an essential aspect of ensuring the safety and efficacy of TCMs. In this study, the effects of different storage times on the stability of 12 decoction pieces were evaluated. High-performance liquid chromatography was used to determine the contents of the active components in the 12 decoction pieces. The chemical composition data were analyzed using fingerprinting and clustering heatmap (CH). Results showed that during storage, significant variations (relative standard deviation > 10%) were observed in the levels of paeoniflorin in Paeoniae Radix Alba and Paeoniae Radix Rubra, hesperidin in Citri Reticulatae Pericarpium and Citri Reticulatae Pericarpium Viride, bufothionine in Siccus Bufo and chlorogenic acid in White Chrysanthemi Flos and Lonice Raejaponicae Caulis. However, calycosin-7-glucoside and calycosin in Astragali Radix Praeparata Cum Melle and chlorogenic acid in Lonicerae Japonicae Flos, Yellow Chrysanthemi Flos and Mori Folium were all <10%, which is consistent with the CH. Decoction pieces can be stored for up to sixmonths, but it is recommended that volatile oil-containing and animal-based decoction pieces should not be stored for more than one month. This study provides new perspectives for the stability and quality control studies of TCM.

Intelligent material classification of traditional Chinese medicine based on semantic analysis

A method for material classification of traditional Chinese medicines based on the physical properties of powder has been established by our research group. This method involves pre-treatment of traditional Chinese medicine decoction pieces, powder preparation, and determination of physical properties, being cumbersome. In this study, the word segmentation logic of semantic analysis was adopted to establish the thesaurus and local standardized semantic word segmentation database with the macroscopic and microscopic characteristics of 36 model traditional Chinese medicines as the basic data. The physical properties of these medicines have been determined and the classification of these medicines is clear in the cluster analysis. A total of 55 keywords for powdery, fibrous, sugary, oily, and brittle materials were screened by association rules and the set inclusion and exclusion criteria, and the weights of the keywords were calculated. Furthermore, the algorithms of the keyword matching scores and the computation rules of the single or multiple material classification were established for building the intelligent model of semantic analysis for the material classification. The semantic classification results of the other 35 TCMs except Pseudostellariae Radix(multi-material medicine) agreed with the clustering results based on the physical properties of the powder, with an agreement rate of 97.22%. In model validation, the prediction results of semantic classification of traditional Chinese medicines were consistent with the clustering results based on the physical properties of powder, with an agreement rate of 83.33%. The results showed that the method of material classification based on semantic analysis was feasible, which laid a foundation for the development of intelligent decision-making technology for personalized traditional Chinese medicine preparations.

The application of machine learning and artificial intelligence technology in the production quality management of traditional Chinese medicine decoction pieces

The application of machine learning and artificial intelligence technology in the production quality management of traditional Chinese medicine decoction pieces

Hot water washing processing technology of Euodiae Fructus based on change laws of active components and tastes

In order to establish the standardized processing technology of the hot water washing of Euodiae Fructus, this study, based on the traditional processing method of hot water washing of Euodiae Fructus recorded in ancient works and modern processing specifications of traditional Chinese medicine decoction pieces, took the yield of decoction pieces and the content of main components as the indicators and optimized the processing conditions by orthogonal test based on the results of single factor investigation. At the same time, electronic tongue technology was used to analyze the change law of the taste index of Euodiae Fructus during the hot water washing. The results of the single factor investigation showed that the content of the main components in Euodiae Fructus showed some regular changes during the processing. Specifically, the content of chlorogenic acid, hyperin, isorhamnetin-3-O-rutinoside, isorhamnetin-3-O-galactoside, and dehydroevodiamine decreased significantly, with average decreases of-23.75%,-27.80%,-14.04%,-14.03%, and-13.11%, respectively. The content of limonin increased significantly with an average increase of 19.83%. The content of evodiamine, rutaecarpine, evocarpine, and dihydroevocarpine showed fluctuating changes and generally increased, with average variation amplitudes of 0.54%,-3.78%, 2.69%, and 5.13%, respectively. The orthogonal test results showed that the optimum processing parameters for the hot water washing of Euodiae Fructus were as follows: washing time of 2 min, the solid-to-liquid ratio of 1∶10 g·mL~(-1), washing temperature of 80 ℃, washing once, and drying at 50 ℃. After the hot water washing processing, the average yield of Euodiae Fructus pieces was 94.80%. The content of limonin, evodiamine, and rutaecarpine was higher than those of raw pro-ducts, and the average transfer rates were 102.56%, 103.15%, and 105.16%, respectively. The content of dehydroevodiamine was lower than that of the raw products, and the average transfer rate was 83.04%. The results of taste analysis showed that the hot water washing could significantly reduce the salty, astringent, and bitter tastes of Euodiae Fructus. This study revealed the influence of the hot water washing on the content of main components and taste of Euodiae Fructus, and the processing technology of the hot water was-hing of Euodiae Fructus established in this study was stable, feasible, and suitable for industrial production, which laid a foundation for clarifying its processing principle and improving the quality standard and clinical application value of decoction pieces.

Urgent need for medical institutions to develop traditional Chinese medicine decoction pieces prescription-based processing and related suggestions

As the last procedure of traditional Chinese medicine(TCM) applied in clinical practice, prescription-based processing(PBP) is an important guarantee for the quality and clinical efficacy of TCM, which can not only maximize the effect of processed product, but also exert the characteristics of syndrome differentiation and treatment in TCM. However, due to various reasons, most medical institutions have no PBP business. As a result, doctors can only use the conventional decoction pieces available on the market, which also greatly limits their flexible medication, with certain impacts on the normal development of the curative effect of TCM. Therefore, the article explained the necessity of PBP from three aspects. In addition, according to Chinese Pharmacopoeia and the characte-ristics of TCM decoction pieces, the varieties suitable for PBP were summarized and proposed, and also some suggestions about developing PBP are given. The PBP is one of the characteristic techniques in TCM, with special technical requirements and profound scientific connotation. The development of PBP will not only promote the processing of TCM and ensure the clinical efficacy, but also promote the vigorous development of TCM.

Study on the Problems and Strengthening Countermeasures of Maintenance and Management of Traditional Chinese Medicine Decoction Pieces in Chinese Pharmacy

Study on the Problems and Strengthening Countermeasures of Maintenance and Management of Traditional Chinese Medicine Decoction Pieces in Chinese Pharmacy

Study on Risk Identification of Quality Control of Traditional Chinese Medicine Decoction Pieces

Study on Risk Identification of Quality Control of Traditional Chinese Medicine Decoction Pieces

Analysis and monitoring of traditional Chinese medicines for tumor based on data mining

The traditional Chinese medicine(TCM) decoction pieces for treating tumors in China-Japan Friendship Hospital in both outpatient and inpatient departments from January 1 to December 31, 2018 were analyzed in this paper, and the statistical analysis on the frequency and proportion of TCM decoction pieces, as well as the average dosage and dosage range were conducted. Such data were then compared with Chinese Pharmacopoeia. At the same time, data mining association rules were used to study the compatibility of TCM in oncology, and finally, the drug use in TCM was discussed. The top 20(use frequency) TCM decoction pieces for tumors were mainly based on tonic medicines; the use frequency of toxic TCM decoction pieces was low, mainly of small poisonous pieces, with dosage exceeding pharmacopoeia. The drug combinations with higher frequency included Fried Atractylodis Macrocephalae Rhizoma-Poria Cocos(16.11%), and Astragali Radix-Poria Cocos(15.10%). Drug pairs with strong associations included Achyranthes Bidentata→Parasitic Loranthus, Coix Seed→Achyranthes Bidentata, Achyranthes Bidentata→Hairyvein Agrimony, Cuscutae Semen→Achyranthes Bidentata and so on. According to the use of drugs, the drug monitoring can be emphasized from the aspects of usage and dosage, selection of processed TCM, compatibility, decoction methods, and patient education. Pharmacists can analyze the characteristics and regularity of the use of TCM for tumors through data mining methods, and this can be a cutting point for drug monitoring.

Study on the content of aflatoxin B1 in 35 traditional Chinese medicine decoction pieces

Objective To investigate the contamination of aflatoxin B1 in traditional Chinese medicine decoction pieces.and to provide evidence for the development of sdandards and scientific management. Methods Immunoaffinity column and post-column photochemical derivatization were used to detect and quantify aflatoxin B1 in 35 traditional Chinese medicines. Results A total of 48.57%(17 out of 35 batches) traditional Chinese medicine were contained aflatoxin B1. The contents of aflatoxin B1 in all contaminated varieties were less than 1μg/kg, except for Sterculia lychnophorae Semen, Foeniculi Fructus, Corydalis Rhizoma, which exceeded the standard. Conclusions The tested traditional Chinese medicine are highly contaminated of aflatoxin, it is necessary to further study the increase of aflatoxin content under the examination of Chinese Pharmacopoeia Foeniculi Fructus and Corydalis Rhizoma to better control its quality. The degree of aflatoxin B1 pollution is reated to the site of drug use and the place of origin. Key words: Assay (TCD); Aflatoxin B1; Immunoaffinity column; Photochemical derivatization

Cloning of a novel trypsin inhibitor from the Traditional Chinese medicine decoction pieces, Radix Trichosanthis

Most herbs of traditional Chinese medicine (TCM) are used as air-dried decoction pieces that are manufactured and kept at ambient temperature for long periods. Given the ability of some desiccation-tolerant plants to conserve RNA, it could be worthwhile to isolate mRNA from TCM decoction pieces as part of a transcriptomic strategy to identify new substances with potential pharmaceutical application. Here, we report the molecular cloning of a novel trypsin inhibitor (as the probable alleleic variants TKTI-2 and TKTI-3) from the decoction piece of Radix Trichosanthis, representing the dried root of Trichosanthes kirilowii. From this material, the total RNA was extracted and a cDNA library was constructed from the isolated mRNA from which the cDNAs of two precursors were successfully cloned and sequenced. TKTI-3 showed an amino-acid substitution in the otherwise highly-conserved P1-P1′ reaction site of the mature peptide, which we confirmed to not be an artefact. Subsequent analysis using LC-MS/MS detected the presence of specific tryptic peptides expected from TKTI-3, confirming the presence and expression of this locus in Radix Trichosanthis. More generally, this study indicates that mRNA can persist in decoction pieces and so could present a viable option for the molecular cloning from other TCMs.

Urgency of clinical evaluation of traditional Chinese medicine decoction pieces

Decoction piece is the basic unit of traditional Chinese medicine(TCM) prescriptions, and it is also the main material basis for clinical efficacy of TCM. The clinical efficacy of TCM decoction pieces is very important for the overall efficacy of TCM prescriptions. However, the current quality evaluation of TCM decoction pieces mainly focuses on the amount of intrinsic substances and compositions. The basic researches such as toxicology and pharmacology are deeply, but lacking with the evidences from clinical evaluation. Therefore, the current decoction pieces quality evaluation system is difficult to objectively reflect the clinical effect of traditional Chinese medicine, forming the only componential theory or blindly pursuing the large volume and heavy weight of medicine materials. The quality standard of Chinese decoction pieces is biased,with concerns that "TCM will die from Chinese medicine". Therefore, this paper proposes that it is urgent to clinically evaluate the TCM decoction pieces,and regard the clinical evaluation as a starting point and a foothold for the quality evaluation of TCM decoction pieces, based on the origin identification, origin evaluation, product evaluation, content evaluation, and harmful substance detection as an auxiliary support. Finally a new quality evaluation system for TCM decoction pieces with a clinical evaluation as the core is formed, which is composed of six steps, aiming to promote the quality improvement of TCM decoction pieces. Of course, because there is no mature experience in the clinical evaluation of TCM decoction pieces, the quality evaluation system has some challenges such as complex processes and high cost, but it is essential for maintaining the quality of medicinal materials and life safety. Therefore, it is of importance and urgency to construct and implement the quality evaluation system.

Standardization system of industry decoction pieces based on whole process quality control concept

Traditional Chinese medicine (TCM) decoction pieces refer to prescription drugs that can be used in clinical or preparation production after processing medicinal herbs. TCM decoction pieces industries are inherited from the culture of TCM and are important because of their independent intellectual property rights. The Chinese Pharmacopoeia (Ch. P) 2010 edition stipulated that "All drugs taken are decoction pieces", which raised the drug status to statutory law for the first time and clearly specified that TCM decoction pieces should be applied to TCM prescription deployment and production of proprietary Chinese medicines. It also pointed out that "The specifications of the decoction pieces used in the preparation should comply with the requirements of the actual process of the corresponding formulation type". For a long time, both the processing methods and the specification grades of the clinically used pieces of Chinese medicine were based on the inheritance and supported by the classical theory and method system centered on TCM processing. However, the theoretical research and specification standards of the decoction pieces used in the production of proprietary Chinese medicines based on modern industry are scarce, and this has led to a series of problems related to the industry, making the processing of decoction pieces becoming a limiting factor in the promotion of the Chinese medicine industry. Aiming at the existing problems of the TCM decoction pieces industry, this article was guided by the standardization system of TCM based on the concept of whole-process quality control, combined with the reference to the Japanese Kampo medicine industry's feeding mode and the reflection on the combination of traditional Chinese medicine processing and modern industry, as well as the study of the core law of the whole-process of TCM production, etc. Industrial decoction pieces and the idea of building a standardized system of TCM industry decoction pieces based on the whole-process quality control were discussed in this paper, which can provide insights for exploring the effective fusion between TCM processing theory and classic heritage and modern manufacturing and can provide the basis for the establishment of a standardized system for industrial decoction pieces based on whole-process quality control of TCM. It can also offer reference for the development of the advantages of geo-authentic crude drug and the establishment of high spots of industry decoction pieces.

Development of whole process quality control and management system of traditional Chinese medicine decoction pieces based on traditional Chinese medicine quality tree

The whole process quality control and management of traditional Chinese medicine (TCM) decoction pieces is a system engineering, involving the base environment, seeds and seedlings, harvesting, processing and other multiple steps, so the accurate identification of factors in TCM production process that may induce the quality risk, as well as reasonable quality control measures are very important. At present, the concept of quality risk is mainly concentrated in the aspects of management and regulations, etc. There is no comprehensive analysis on possible risks in the quality control process of TCM decoction pieces, or analysis summary of effective quality control schemes. A whole process quality control and management system for TCM decoction pieces based on TCM quality tree was proposed in this study. This system effectively combined the process analysis method of TCM quality tree with the quality risk management, and can help managers to make real-time decisions while realizing the whole process quality control of TCM. By providing personalized web interface, this system can realize user-oriented information feedback, and was convenient for users to predict, evaluate and control the quality of TCM. In the application process, the whole process quality control and management system of the TCM decoction pieces can identify the related quality factors such as base environment, cultivation and pieces processing, extend and modify the existing scientific workflow according to their own production conditions, and provide different enterprises with their own quality systems, to achieve the personalized service. As a new quality management model, this paper can provide reference for improving the quality of Chinese medicine production and quality standardization.

Grades evaluation of Phellodendri chinensis cortex pieces based on quality constant

Quality constant is a comprehensive grades evaluation method for traditional Chinese medicine decoction pieces, which is better but based on traditional way. In this paper, a new grading mode for Phellodendri chinensis pieces was established based on quality constant evaluation method. The results showed that the range of relative quality constant for 15 batches of different samples was from 0.41 to 0.96. As customary, if these samples were divided into three grades: the relative quality constant shall be ≥0.77 for first grade; <0.77 but ≥0.48 for the second grade; and ＜0.48 for the third grade. This research indicated that the quality constant mode can be used to effectively grade the P. chinensis pieces in a scientific, reasonable, objective and specific way. Simultaneously, it provided a beneficial reference for grading cortex herbal pieces or medicines.

Excel数据导入法在中药饮片采购系统中的应用

Excel数据导入法在中药饮片采购系统中的应用

Investigation of supramolecular chemical mechanism of traditional Chinese medicine processing

To analyze the research status of traditional Chinese medicine (TCM) processing and key scientific issues to be resolved by using characteristic of TCM biological supramolecules and reaction theories of 'Qi chromatography' to human being, and then put forward the solution countermeasures. Based on the previous explications of theories of the Chinese medicine with supramolecular chemistry as 'Qi chromatograpy', biological supramolecular chemistry theory was used to explain the root of the problem in TCM processing and form the countermeasures for supramolecular chemistry research in the processing of TCM decoction pieces. TCM is a huge complex biological supramolecular body, so the processing of TCM is in view of the processing of huge complex biological supramolecular body. In nature, it is a TCM pharmaceutical technology with chemical changes of the subject and object of biological supramolecular body with or without auxiliary materials, under the condition of high temperature and high humidity. Supramolecular chemistry was throughout the processing of TCM, so the use of supramolecular technology was appropriate in research. TCM decoction pieces were the product of subject and object molecular changes after supramolecular chemistry reaction, with changes in physical and chemical properties of the subject and object molecules, such as bound water overflow, chemical bond rupture, dehydration, carbonization, and reaction with auxiliary materials. Changes in drug property and drug efficacy after processing depended on the degree of subject and object "imprinting template" change, which can be measured by 'Qi chromatography' function of supermolecular imprinting template in human body. In this paper, the research ideas, methods, variety attribution, processing principle, quality standard and clinical application were analyzed to find out the sticking point of the problems, and form the countermeasures with supramolecular chemistry as the core. The processing of TCM is a chemical technology of biological supramolecular body based on the function of supermolecular 'imprinting template' (medical element) of human meridian-viscera, and its reaction products (decoction pieces) showed determinacy when used alone and compatibility when used together, which may constitute a compatible drug delivery system of TCM in clinical application.

Uniformity of Coptidis Rhizoma decoction pieces dispensing based on effective constituent equivalence

Traditional Chinese medicine (TCM) dispensing is the final step of TCM used for clinical treatment, the stability of TCM dispensing is the guarantee of good clinical effect. Establishment of effect-constituent equivalence for Chinese herbal pieces based on clinical efficacy, can not only guarantee the stability of TCM dispensing, but also relate to the precision of clinical effect. This study chose Coptidis Rhizoma as the model, established effect-constituent equivalence of Coptidis Rhizoma, based on the effect-constituent index already established by our research group, and taking into consideration of homogeneity of clinical dosage and compliance of decoction, the uniformity of dispensing for different specification of Coptidis Rhizoma decoction pieces was studied. This research model was then applied to guide the specification-optimization of Coptidis Rhizoma and its clinical dispensing. The result indicated, effective constituent equivalence could reflect the fluctuation of specification, dosage and decoction to the fluctuation of efficacy; Optimized Coptidis Rhizoma decoction pieces had the characteristic of high homogeneity as for clinical dispensing, good compliance as for decoction, and high effective constituent equivalence. In conclusion, effective constituent equivalence could improve relevance of methods of TCM dispensing control to clinical effect. Preparated Superior-standard Decoction Pieces based on effective constituent equivalence was featured by good quality and a good practice of adjustable dosage, which could promote the development of TCM decoction pieces toward precision medicine.

Study on self-similarity relationship between decoction pieces property and component property

To predict part of medicinal properties of traditional Chinese medicine components and traditional Chinese medicine decoction pieces by using the traditional Chinese medicinal property data prediction platform, in order to establish the relationship between properties of traditional Chinese medicine components and traditional Chinese medicine decoction pieces. The properties of traditional Chinese medicine components were predicted by using the medicinal property data prediction platform based on the pharmacological effects of the components. The total sum of identical or similar results of the prediction for the properties of traditional Chinese medicine components and traditional Chinese medicine decoction pieces accounted for over 75%. The self-similarity exists between properties of traditional Chinese medicine components and traditional Chinese medicine decoction pieces, which reflects the inheritance, additivity and emergence among different properties of traditional Chinese medicines.

Improvement of phase unwrapping algorithm based on image segmentation and merging

A modified algorithm based on image segmentation and merging is proposed and demonstrated to improve the accuracy of the phase unwrapping algorithm. There are three improved aspects. Firstly, the method of unequal region segmentation is taken, which can make the regional information to be completely and accurately reproduced. Secondly, for the condition of noise and undersampling in different regions, different phase unwrapping algorithms are used, respectively. Lastly, for the sake of improving the accuracy of the phase unwrapping results, a method of weighted stack is applied to the overlapping region originated from blocks merging. The proposed algorithm has been verified by simulations and experiments. The results not only validate the accuracy and rapidity of the improved algorithm to recover the phase information of the measured object, but also illustrate the importance of the improved algorithm in Traditional Chinese Medicine Decoction Pieces cell identification.

Analysis on dosage of traditional Chinese medicine decoction pieces stipulated in Chinese Pharmacopoeia

Chinese Pharmacopoeia I (2010 edition) covers dosage and usage of traditional Chinese medicinal herbs and decoction pieces, and provides dosage ranges of most of decoction pieces. By using the descriptive statistical method, the article discusses the distribution of maximum dosage, minimum dosage and dosage range of decoction pieces set forth in Chinese Pharmacopoeia, and compares toxic drugs and non-toxic drugs. Altogether 617 drugs are included into the study. Except for 16 decoction pieces whose dosages are not clear, all of the remaining decoction pieces are covered by Chinese Pharmacopoeia, with the maximum common dosage, minimum common dosage and dosage range of 3, 10 and 6 g. Upon comparison, we discovered that Chinese Pharmacopoeia sets stricter standards for toxic drugs than non-toxic drugs. Compared with dosages in classical prescriptions and actual clinical usages, dosage ranges described in Chinese Pharmacopoeia are much narrower. There is no significant difference between drugs that can be used as foods or healthcare foods and other drugs according to Chinese Pharmacopoeia.