Publications by authors named "Yi-qun Zhou"

Based on the characteristics of biological supramolecules and the law of " imprinting template",the research status and common problems in " maintaining medicinal properties after carbonisatus" in traditional Chinese medicine( TCM) were analyzed,and the further countermeasures were put forward. According to the historical evolution of " maintaining medicinal properties after carbonisatus" in TCM processing,the origin of its common problems was clarified by using the theory of biosupramolecular chemistry. TCM is a megacomplex biological supramolecular system,so TCM processing is just the processing of megacomplex biological supramolecular system,and its essence is a TCM pharmaceutical technology with chemical changes in host and guest of biological supramolecular system with or without adjuvant material under high temperature and humidity.

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In this paper,immune fingerprint was used to screen the allergenic components of Shuanghuanglian Injection(SHLI) by enzyme-linked immuno sorbent assay(ELISA) combined with HPLC/MS method. ELISA-embedded anti-IgE antibody could successfully adsorb allergens in SHLI and its plasma samples containing drugs through different routes of administration,suggesting that SHLI can induce type I hypersensitivity in rats. HPLC fingerprints and MS map of SHLI and drug-containing plasma samples from different routes of administration before and after anti-IgE antibody adsorption were established.

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Background: Nowadays, to research and formulate an efficiency extraction system for Chinese herbal medicine, scientists have always been facing a great challenge for quality management, so that the transitivity of Q-markers in quantitative analysis of TCM was proposed by Prof. Liu recently. In order to improve the quality of extraction from raw medicinal materials for clinical preparations, a series of integrated mathematic models for transitivity of Q-markers in quantitative analysis of TCM were established.

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Background: It is well-known that the public still have been facing on a severe issue about the inconsistency of quality and therapeutic efficacy of traditional medicines. Recently, Professor Chang-Xiao Liu has created a new promising concept for identifying relevant quality-markers (Q-marker) from herbs, their formulas and manufacturing products. Therefore, building up a new approach is necessary for us to bridge over quality to efficacy of pharmaceutical products.

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Article Synopsis
  • Controlled sustained-release preparation (CSRP) plays a crucial role in developing innovative medicines, but its advancement is hindered by the complex compositions of Chinese medicine and several unresolved issues related to their physical and chemical properties.
  • The study examines the challenges faced in CSRP preparation due to the multiple components and synergistic effects of Chinese medicine, while also exploring the principles of supramolecular chemistry for achieving overall control and synchronized dissolution in these formulations.
  • By investigating the supramolecular mechanisms involved, the research aims to provide valuable insights that can enhance the development and manufacturing processes of CSRP, laying a solid foundation for future studies in this area.
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Article Synopsis
  • - The text analyzes the current research status of Traditional Chinese Medicine (TCM) processing, focusing on the role of biological supramolecules and the concept of 'Qi chromatography' in understanding and improving TCM applications.
  • - It emphasizes the complexity of TCM as a biological supramolecular system, which undergoes various physical and chemical changes during processing, affecting drug properties and efficacy.
  • - The study proposes using supramolecular chemistry as a framework to address key issues in TCM processing, including research methods, quality standards, and clinical applications, suggesting a need for a more scientific approach to enhance TCM efficacy.
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The effect of Chinese medicine (CM) compound prescription is the combined action results of single herbs based on the basic theory of Chinese medicine, and its function embodies the characteristics of multi components, multi targets and comprehensive effects. It is difficult to study the therapeutic material, establish quality standards or determine Q-marker, so we can't strictly monitor the quality of the whole process of CM. The identification of Q-marker has a profound influence on the whole process of the pharmaceutical engineering of CM.

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To investigate the effect of the ingredient group of traditional Chinese medicine (TCM) with different "imprinted template" on the supramolecular solubilization ability of licorice, in order to lay a theoretical foundation for explaining the solubilization phenomenon of the components of TCM. Based on the independent supramolecular "imprinted template" rules, molecular connectivity index (MCI) and the correlation of n-octanol-water partition coefficient (logP) were used to indicate hydrophilic lipophilic capacity of TCM, and the extractum rate was used to indicate the solubilization effect of licoriceon single TCM herbs or compounds. The solubilization ability of licorice was evaluated based on MCI, logP and the extractum rate.

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The paper, based on the previous publication as special impact of Chinese medicine theories on supramolcular chemistry, aims to analyze the natural origination for the Chinese medicine and to explain the special impact of "Qi chromatography" reaction on "imprinting templates" in supramolcular host of human being with Chinese medicine, in order to reveal the CM's properties of "medical element" with "imprinting templates" autonomisation generally took place in natural supramolecules, and also to discover that the CM's pharmacology are satisfied with its own approaches different form western pharmacology. It was decided, for CM's pharmacology guided by CM's theories, to "Qi chromatography" relations between the CM's ingredient groups and the meridian zang-fu viscera. The supramolcular chemistry played an all-through role in procession of making macro-regularities and special presentation on behavior of "Qi chromatography" impulse owning to the matching action of all kinds of ingredients on the meridian zang-fu viscera with similar "imprinting templates".

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More and more disputes have happened to confront us continuously since the separation of Japanese(wild) honeysuckle flower in Chinese Pharmacopoeia in 2005. The state pharmacopeia committee decided to separate Japanese(wild) honeysuckle flower into two species for japanese(wild) honeysuckle flower, but didn't define their the convincing reasons still did not provide to us as a result that two medicines are not described the differences in natural properties, efficiency and indication, usage and dosage, as well as not given a resolving methodand specific solution. It was known for us that in the history of traditional Chinese medicine(TCM), the phenomenenphenomena of the "one drug from multi-species" and "one species for multi-drug" are very ordinary thingswere ubiquitous.

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The (anaphylactoid) hypersensibility mechanism of ″imprinting templates″ characteristics of traditional Chinese medicine (TCM) injection supramolecules was clarified to lay the foundation to build safety evaluation method. Based on the previous publication on special impact of Chinese medicine theories on supramolcular chemistry, combined with the natural origination of (anaphylactoid) hypersensitized special rules as well as the sensitization phenomenon of cordate houttuynia injection, the impact of the structure characteristics of ″imprinting templates″ in TCM injection supramolecules on its (anaphylactoid) hypersensibility was clarified. In Chinese medicine injections, the supramolecular structures can independently be generated, showing overall apparent (anaphylactoid) hypersensibility nature, and their structure characteristics were dependent on the strength.

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Article Synopsis
  • The paper explores how supramolecular chemistry enhances the understanding of Chinese medicine (CM) by examining the concepts of meridian tropism and the natural origins of CM components.
  • It explains that CM ingredients act as supramolecular "imprinting templates" that seek compatible structures within the human body, leading to self-recognition and specific effects in meridians and organs.
  • The authors suggest that this interaction can be studied through both in vitro and in vivo experimental methods, establishing a foundational theory that could modernize our understanding of Chinese medicine.
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A laboratory investigation was conducted to evaluate the efficiency of four phosphate fertilizers, including diammonium phosphate (DAP), potassium phosphate monobasic (MPP), calcium superphosphateon (SSP), and calcium phosphate tribasic (TCP), in terms of the toxicity and bioavailability of Cd in contaminated soils. The efficiency of immobilization was evaluated on the basis of two criteria: (a) the reduction of extractable Cd concentration below the TCLP regulatory level and (b) the Cd changes associated with specific operational soil fractions on the basis of sequential extraction data. Results showed that after 50 d immobilization, the extractable concentrations of Cd in DAP, MPP, SSP, and TCP treated soils decreased from 42.

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The paper aimed to elucidate the specific impact of supramolecular chemistry on the Chinese medicine theories (CMT) in their modernization, after had summarized up the research status of supramolecular chemistry and analyzed the possible supramolecular forms of Chinese medicine (CM), as well as considered the problems in modernization of CM theories. On comparison of the classical chemistry that delt with chemical bonds among atoms, the supramolecular chemistry was rather concerned with varietes of weak noncovalent bonds intermolecules, and reflected the macro-apparent chemical properties of each molecules, and was the most appropriate chemical theories to explain the CMT and microcosmic materials. The molecules in the human body and Chinese material medica (CMM) formed supramolecules by way of self-assembly, self-organization, self-recognition and self-replication, with themselves or with complexation, composition, chelation, inclusion, neutralization etc.

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Background: Photoaging skin is due to accumulative effect of UV irradiation that mainly imposes its damage on dermal fibroblasts. To mimic the specific cellular responses invoked by long term effect of UVB, it is preferable to develop a photo-damaged model in vitro based on repeated UVB exposure instead of a single exposure.

Objective: To develop a photo-damaged model of fibroblasts by repeated UVB exposure allowing for investigation of molecular mechanism underlying premature senescence and testing of potential anti-photoaging compounds.

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Background: The objective of the present study was to investigate the possible relationship between partial disc displacement of the temporomandibular joint (TMJ) and mandibular dysplasia.

Material/methods: The TMJ disc position of 46 female adolescents, with Class II, Division 1 malocclusion, aged 10.1 approximately 12.

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To study the effects of suppressed alpha-mannosidase Man2c1 gene expression on EC9706 human esophageal carcinoma cells, the cells were treated with short interfering RNA. Growth inhibition of EC9706 cells was observed when Man2c1 expression was inhibited in this way. Flow cytometric analysis showed accumulation of cells in S and G(2)-M phases, as well as cell apoptosis.

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A sensitive fluorimetric method for the determination of nitrogen oxides (NO(x): NO+NO(2)) in air is described. Nitrogen dioxide (nitrogen monoxide was previously converted to nitrogen dioxide in oxide tubes) was aspirated through a fritted glass bubble at a flow rate of 500 ml min(-1) for 120 min and fixed as nitrite, using 0.1 N NaOH as a trapping solution with the empirical absorption efficiency 0.

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Objective: To establish the quantitative diagnostic criteria for cranio-orbito-zygomatic deformity (COZD).

Methods: Computer-assisted three-dimensional (3-D) CT measurement was performed in 30 cases with unilateral COZD. The differences of the measurement data between the affected and unaffected sides were analyzed.

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Objective: To explore the therapeutic value of BCSC-1 in tumor gene therapy.

Methods: Recombinant adenovirus Ad5-BCSC-1 was prepared. Cell proliferation was assayed using CellTiter 96 Aqueous one solution cell proliferation assay kit.

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Objective: To explore the possibility of treating solid tumor with siCD44.

Methods: Human nasopharyngeal carcinoma cell CNE-2L2 with high expression of CD44 was used in this study. The malignant activities of cells were examined by colony formation test, tumorigenesis, and lung metastasis of the tumor in nude mice.

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Objective: To study effects of ectopic expression of BCSC-1 gene on the malignant activi-BCSC-1 cDNA was isolated by RT-PCR ties of human nasopharyngeal carcinoma cell CNE-2L2.

Methods: and inserted into pMAL-c2X and pcDNA4/myc-His A. BCSC-1 protein was expressed in prokaryocytes.

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Objective: To study mechanisms of reduction of the malignant activities of human naso-pharyngeal carcinoma cell CNE-2L2 induced by ectopic expression of BCSC-1 gene.

Methods: DNA was stained with propidium iodide and assayed upon a flow cytometer. Chromosomes were stained with Hoechest 33258.

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Objective: To study the effect of human alpha-mannosidase Man2c1 transgene on tumor growth and metastasis in mice.

Methods: Hepatoma cell H22 or squamous epithelial carcinoma cell S180 was subcutaneously inoculated into the right armpit of mice (wild type mice and 28#, 35#, and 54# transgenic mice). Tumor size was measured every week.

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Objective: To study the effect of the inhibition of CD44 gene expression on the growth of human nasopharyngeal carcinoma cell CNE-2L2 in vitro.

Methods: CD44 gene expression in cells was suppressed by siRNA which was introduced into cells through retrovirus infection. Integration of siRNA into genomic DNA was examined by genomic PCR.

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