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2024, Volume 42,  Issue 2

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Development and application of in vitro intestinal absorption model based on microfluidic chips
CHEN Lan, HE Xiaoli, YOU Piaoxue, WANG Hui, HONG Zhanying
2024, 42(2): 43-49, 59. doi: 10.12206/j.issn.2097-2024.202305003
Abstract(715) HTML (235) PDF (2040KB)(13)
The intestine is the main site of oral drug absorption, and the epithelial cells of the intestine contain villi and microvilli, which promote secretion, cell adhesion, and absorption by increasing surface area and other factors. Traditional two-dimensional/three-dimensional (2D/3D) cell culture models and animal models have played an important role in studying drug absorption, but their application is limited due to the lack of sufficient predictability of human pharmacokinetics or ethical issues, etc. Therefore, mimicking the core structure and key functions of the human intestine based on in vitro live cells has been the focus of research on constructing a microfluidic chip-based intestinal model. The model is a microfluidic chip bionic system that simulates the complex microstructure, microenvironment, and physiological functions of the human intestine using microfabrication technology. Compared with 2D cell culture and animal experiments, the intestinal microarray model can effectively simulate the human in vivo environment and is more specific in drug screening. The research progress and applications in disease modeling, drug absorption and transport of intestinal microarray models and intestine-related multi-organ coupled microarray models at home and abroad were reviewed in this paper. The current challenges of intestinal chip simulating intestinal homeostasis and diseases were summarized, in order to provide reference for the further establishment of a more reliable in vitro intestinal chip model.
Effects of light regulation on the synthesis of secondary metabolites in medicinal plants
ZHANG Wei, MENG Xiangqing, SU Xiaohui, WANG Jinyi, LI Lihua, JIA Min
2024, 42(2): 50-59. doi: 10.12206/j.issn.2097-2024.202305027
Abstract(1525) HTML (477) PDF (1355KB)(31)
Secondary metabolites of medicinal plants are extremely important to human health because of their special pharmacological activities or efficacy. They are the main source of drugs, health care products, and cosmetics. As human beings continue to pursue health and longevity, the demand in the pharmaceutical market continues to grow. It becomes especially important to improve the production and quality of secondary metabolites of medicinal plants. Plant secondary metabolites are a kind of adaptation of plants to their environment and are the result of the interaction between plants and biotic and abiotic factors during the long-term evolution process. The production and accumulation of secondary metabolites in medicinal plants are mainly affected by plant genetic factors and environmental factors. Among them, light environment is extremely important for their synthesis. Therefore, light regulation has long been a research focus for many scholars in China and abroad. In this article, we the recent research progress on the effects of light regulation on the secondary metabolites of medicinal plants were reviewed, mainly focusing on the effects of light quality, light intensity and photoperiod, in order to provide theoretical basis and practical guidance for the efficient production of secondary metabolites with important pharmacological activities.
Application progress on in vivo drug analysis technique in clinical pharmacy
CHEN Tingru, MAO Shilong
2024, 42(2): 60-65. doi: 10.12206/j.issn.2097-2024.202305039
Abstract(379) HTML (138) PDF (942KB)(12)
  Objective  To explore the progress on the application of in vivo drug analysis techniques in clinical pharmacy work.   Methods  Relevant literature was reviewed to provide an overview of the characteristics of clinical samples, common in vivo drug analysis methods used in the clinic, the application and existing problems of in vivo drug analysis in clinical pharmacy.   Results and Conclusion   In recent years, with the increasing demand for individualized and precise treatment in clinical practice and the continuous development of analytical techniques, in vivo drug analysis techniques have been widely used in clinical pharmacy work, which have become one of the important auxiliary techniques to promote rational clinical drug use, improve individualized treatment and reduce the occurrence of adverse reactions. However, in the actual application, there were still problems such as the invasive blood sampling that hinders sampling, the weak ability to interpret drug monitoring results and clinical testing methods that still need to be improved. These problems should be taken seriously and continuously improved and solved in the subsequent research and application.
Study on the treatment of cerebral infarction with Chinese medicine Shenmajingfu granule by network pharmacology
XU Yi, HE Ruihua, HUANG Jin
2024, 42(2): 66-72. doi: 10.12206/j.issn.2097-2024.202303013
Abstract(1016) HTML (326) PDF (5132KB)(19)
  Objective  To explore the material basis and mechanism of the Chinese medicine Shenmajingfu granules in the treatment of cerebral infarction.   Methods  The potential active ingredients and targets of Shenmajingfu granules were retrieved through TCMSP, ETCM database and TCM Database. The related target genes of cerebral infarction were searched from OMIM database. The common targets of Shenmajingfu granules and cerebral infarction were obtained by the intersection method. Cytoscape was used to construct active components of Shenmajingfu granules-targets network. Protein-protein interaction network was constructed by STRING software. DAVID database was used for GO and KEGG enrichment analysis.   Results  The 183 potential active ingredients of Shenmajingfu granules were screened out. 1785 potential targets were screened in the TCMSP database, including 30 targets related to cerebral infarction. These target genes were mainly involved in the inflammatory response and apoptosis process, involving the TNF signaling pathway, HIF-1 signaling pathway and NF-κB signaling pathway.   Conclusion  The therapeutic effect of Shenmajingfu granules on cerebral infarction may be related to the regulation of inflammatory response, improvement of impaired neurological function and protection of cerebral ischemia-reperfusion injury.
Preparation and cytotoxicity of doxorubicin-containing gold nanoparticles
XU Ziyi, SUN Yuhan, FAN Li, LU Guangzhao, ZHANG Yingnan, ZHANG He
2024, 42(2): 73-77, 81. doi: 10.12206/j.issn.2097-2024.202308043
Abstract(551) HTML (762) PDF (1439KB)(80)
  Objective  To construct methoxy polyethylene glycol (mPEG) modified gold nanoparticles (AuNPs) loaded with doxorubicin (DOX) AuNPs-mPEG@DOX in order to reduce the toxicity and side effects of DOX.   Methods  AuNPs-mPEG@DOX was prepared and characterized by Z-Average, Zeta potential and UV-Vis spectroscopy. The impact of thiol-linked DOX (HS-DOX) at various dosage concentrations on the drug adsorption rate and drug loading of AuNPs-mPEG@DOX was investigated. Furthermore, a HPLC method was developed to accurately determine the content of unadsorbed HS-DOX in AuNPs-mPEG@DOX. The specificity, linearity, precision, stability and average recovery of this method were thoroughly investigated. The cytotoxic effect of AuNPs-mPEG@DOX on MCF-10A and MCF-7 cells was evaluated using a CCK-8 assay.   Results  AuNPs-mPEG@DOX was successfully prepared with Z-Average of (46.12±0.49) nm, Zeta potential of (18.60±1.51) nm and the maximum absorption wavelength of 530 nm. An efficient HPLC method for the detection of unadsorbed HS-DOX in AuNPs-mPEG@DOX was devised. The optimal dosage concentration of HS-DOX for AuNPs-mPEG@DOX was determined to be 11.18 μg/ml, resulting in a drug adsorption rate of (9.21±2.88)% and a drug loading rate of (2.01±0.62)%. Cytotoxicity experiments demonstrated that AuNPs-mPEG@DOX significantly reduced the toxic and side effects of DOX on normal breast cells. Additionally, AuNPs-mPEG@DOX and free DOX exhibited comparable cytotoxic effects on breast tumor cells when DOX concentration was equal to or greater than 4.75 μmol/L.   Conclusion  AuNPs-mPEG@DOX effectively reduce the toxicity of DOX, providing a reference for future research on reducing the toxicity of AuNPs-linked drugs.
Simultaneous determination of three constituents in Chunyang Zhengqi capsules by HPLC
WEN Yi, MENG Lulu, WANG Baoyi, WEI Feixue, DENG Peng, LIU Rongying
2024, 42(2): 78-81. doi: 10.12206/j.issn.2097-2024.202201059
Abstract(280) HTML (105) PDF (976KB)(4)
  Objective   To establish method for simultaneous determination of hesperidin, cinnamaldehyde and eugenol in Chunyang Zhengqi capsules by high performance liquid chromatography.   Methods   The column was Agilent PorosheⅡ 120 EC-C18 (4.6 mm×150 mm, 4 μm). The mobile phase was acetonitrile-water with gradient elution. The column temperature was 35℃. The flow rate was 1.0 ml/min, and the detection wavelength was 284 nm.   Results   The methodological verification showed that hesperidin, cinnamaldehyde and eugenol had a good linearity (r≥0.999 9). The precisions were less than 2.0%. The average recovery was between 98.0% and 101.9%. The stability and repeatability of RSD were also less than 3.0%, which met the requirements of method validation.   Conclusion   The method is simple, stable, reproducible and accurate, which could be used to the quality control of Chunyang Zhengqi capsules.
Clinical effect of Bailing capsule on patients after renal transplantation
PANG Suqiu
2024, 42(2): 82-85. doi: 10.12206/j.issn.2097-2024.202206127
Abstract(452) HTML (150) PDF (850KB)(6)
  Objective  To study the effect of Bailing capsule on renal function and other organ systems in 60 patients after renal transplantation in No. 910 Hospital of Joint Logistics Support Force.   Methods  60 patients with renal allograft in 2018−2020 were divided into 2 groups according to different immunosuppressive regimens. In the control group, 35 cases were treated with MMF + CsA or FK506; in the treatment group, 25 cases were treated with MMF + CsA or FK506 + Bailing capsule. Blood and urine routine, liver and renal function and uric acid were measured after operation. The dosage of immunosuppressive drugs was recorded in stages at 48 weeks.  Results  The urinary red and white blood cell counts, blood aspartate transaminase and alanine transaminase, serum uric acid, total bilirubin and direct bilirubin in the treatment group were significantly less than those in the control group, while the serum total protein and albumin were significantly higher than those in the control group. The number of red blood cells and white blood cells in the treatment group was significantly higher than that in the control group at 12-48 weeks after kidney transplantation, and that in the lymphocyte group was significantly higher than that in the control group at 24-48 weeks after kidney transplantation. The dosage of CsA and FK506 in the treatment group was significantly lower than that in the control group after 48 weeks.   Conclusion  Bailing capsule could protect liver and kidney, stimulate hematopoiesis, improve hypoalbuminemia and reduce the dosage of immunosuppressant, which could be an ideal immunomodulator.
2024, 42(2): 86-88. doi: 10.12206/j.issn.2097-2024.202304004
Abstract(359) HTML (148) PDF (1233KB)(5)