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Table of Content

    31 January 2023, Volume 32 Issue 1
    Original articles
    Epigenetic variants of xenobiotic metabolism affect individual differences in antiepileptic drug 3,4-DCPB pharmacokinetic phenotype
    Yingyuan Lu, Mei Zhang, Shengju Yin, Xiaona Dong, Zhiyuan Zhang, Haixu Cheng, Pengfei Tu, Guifang Dou, Yongsheng Che, Zhenghui Xu, Feng Xu, Xian Wang, Chuang Lu, Yaqing Lou, Guoliang Zhang
    2023, 32(1):  1-16.  DOI: 10.5246/jcps.2023.01.001
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    Antiepileptic drug therapy is a main method for controlling epilepsy, but the responses of patients to the current treatments are not consistent due to inter-individual differences in drug disposition. In the present study, we investigated whether genetic and epigenetic variants affected the pharmacokinetic phenotypes of the antiepileptic drug 3,4-dichlorophenyl-propenoyl-sec-butylamine (3,4-DCPB) in phase I dose-escalation clinical trial in healthy subjects. The plasma concentrations of 3,4-DCPB and its major metabolite M1 were determinated by the liquid chromatography tandem mass spectrometry (LC-MS/MS) method. Single nucleotide polymorphisms (SNPs) of xenobiotic metabolisms including cytochrome P450 2D6 (CYP2D6), CYP2C9, CYP1A2, CYP2C19, CYP3A5, transporter ABCB1 (C1236T), nuclear receptors AhR, CAR and PXR were analyzed by genotyping and DNA methylation levels for these genes. Compared to the wild-type CYP2D6*1/*1 homozygote (extensive metabolizers, EMs), the variant allelic CYP2D6*10 carriers (intermediate metabolizers, IMs) showed that the area under the curve (AUC0–t) ratios of metabolite M1/3,4-DCPB parent drug were lower, and the plasma half-life (t1/2) ratios were prolonger, while the DNA methylation levels were higher. These data suggested that epimutation induced by lose (CYP2D6*10, C > T) of cytosine, might explain the associations among genotype, epigenotype and individual differences in the pharmacokinetic phenotype of 3,4-DCPB, and provide new insight in personalized treatment of epilepsy.

    Study on the mechanism of Baishao Qiwu Decoction in the treatment of colorectal cancer based on network pharmacology and molecular docking
    Ning Ding, Tao Zhang, Ji Luo, Haochen Liu, Yu Deng, Yongheng He
    2023, 32(1):  17-31.  DOI: 10.5246/jcps.2023.01.002
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    In the present study, we investigated the mechanism of Baishao Qiwu Decotion (BSQWD) in the treatment of colorectal cancer (CRC) based on network pharmacology and molecular docking technology. The active components and all targets of traditional Chinese medicine (TCM) were screened by the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), and the compositive target network diagram was drawn by Cytoscape software. Potential CRC targets were identified by GeneCards, OMIM, PharmGKB, TTD, and DrugBank databases. Cytoscape was used to integrate chemical components, targets, and diseases in BSQWD. The STRING platform line protein-protein interaction (PPI) analysis was performed. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and Gene Ontology (GO) analyses were performed using R language. Finally, AutoDock and SYBYL-X 2.0 were used to perform molecular docking. The results showed that seven kinds of medicinal materials in BSQWD contained 110 chemical components. There were 9048 CRC-related genes. BSQWD was associated with 184 target genes. Hub genes were identified, which were JUN, HSP90AA1, TP53, AKT1, and TNF. Moreover, 2589 GO items were enriched, including 2324 biological processes, 67 cell components, and 198 molecular functions. KEGG analysis obtained 179 pathways. The molecular docking results showed that the potentially active ingredients, cynaropicrin and rivularin, had good binding with the hub genes HSP90AA1 and TP53. Collectively, the reaseach showed that BSQWD achieved the anti-CRC mechanism through the synergistic regulation of multiple components, multiple targets, and multiple pathways, providing a theoretical basis and scientific basis for the application of BSQWD.

    Proteomic study of Rehmannia glutinosa and Cornus officinalis herbal pair on the brain tissue of rats with ischemic stroke
    Xin Li, Yan Shang, Mengxin Qi, Guoheng Hu
    2023, 32(1):  32-44.  DOI: 10.5246/jcps.2023.01.003
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    Since the traditional Chinese medicine (TCM) "tonifying kidney and filling essence" treatment has an excellent therapeutic effect on ischemic stroke, Rehmannia glutinosa and Cornus officinalis were selected as the representative herbal combination to explore the effect of this therapeutic method on ischemic stroke. SD rats were used to establish the MCAO model and divided into two groups, including the model group and treatment group. Another sham operation group was set up, with 10 rats in each group. The treatment group was treated daily with Rehmannia Cornus Decoction by gavage, while the sham group and model group were treated with the same volume of distilled water by gavage. Brain tissue of the infarcted hemisphere was collected after 7 d of continuous intervention, then TTC staining was performed to evaluate the cerebral infarction volume, and the proteomic changes in the infarcted region of rats were detected by tandem mass tag spectrometry technology. The results showed that Rehmannia glutinosa and Cornus officinalis herb pair could effectively protect ischemic brain tissue and showed reliable proteomic assay quality and significant differences in proteomic expression profiles between the groups. A total of 993 proteins were differentially expressed between the treatment and model groups, of which 756 were up-regulated, and 237 were down-regulated. The functions of these differential proteins were mainly involved in regulating the activity of various enzymes and the changes in the binding functions of various molecules. The signaling pathways involved were mainly related to the synthesis and degradation of ketone, various synaptic functions, and phosphatidylinositol signaling system. These molecular functions and pathways might be the targets of this herbal pair for the intervention of ischemic stroke and provide a reference for further research.

    Determination of chlorogenic acid and rutin in extractive solution of ficus virens leaves by HPLC-PDA
    Yanqing Zhou, Yonghong Liu, Yanting Li, Yanru Tao, Jin Li, Xinhui Jiang
    2023, 32(1):  45-51.  DOI: 10.5246/jcps.2023.01.004
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    A HPLC-PDA method was established for determining chlorogenic acid (CGA) and rutin (RU) in the extract of Pueraria lobata leaves. The ODS2 column was used with gradient elution, the mobile phase was methanol–phosphoric acid (AR) solution (pH 3.0), the column temperature was 25 ± 2 oC, and the flow rate was 1.0 mL/min. The effective components in the extract were identified by mass spectrometry and UV spectrometry. The results showed that the extraction contained CGA and RU. The HPLC-PDA method for determining CGA and RU showed an excellent linear relationship within the concentration range, r ≥ 0.9998. The results showed that the limits of quantitation and detection were all less than 0.06 and 0.02 μg/mL, respectively. The relative recoveries ranged from 99.10% to 104.7%. The intra-day and inter-day precisions expressed by RSD values were all less than 1.89% and 1.82%, respectively. The method was sensitive, specific, and easy to operate and could be used to determine CGA and RU in the extract of Pueraria lobata leaves. The contents of RU and CGA were 3.46 and 3.23 μg/mL, respectively.

    Drug administration and clinical pharmacy column
    A pharmacist-led intervention study to improve treatment adherence in patients with chronic obstructive pulmonary disease
    Ling Yuan, Qing Yang, Xinping Xu, Deyin Tong, Lihui Geng
    2023, 32(1):  52-63.  DOI: 10.5246/jcps.2023.01.005
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    Non-adherence to chronic obstructive pulmonary disease (COPD) treatment is associated with poor disease control. Little data exist from China on inhalation adherence and patient satisfaction. We investigated the improvement in inhalation adherence in patients with COPD following a pharmacist’s intervention on dry powder inhaler (DPI) use. The participants were patients with COPD who used DPIs for at least 2 months. DPIs included Turbohaler, Discus, and HandiHaler. On enrolment, the inhaler technique, patient satisfaction, and adherence were assessed by a pharmacist, who guided the patients on the use of inhalants and addressed dissatisfaction issues based on the results of a medication satisfaction survey. Follow-ups were conducted at 1 and 3 months. Finally, the inhalation technique, satisfaction, and adherence at 6 months were compared with those before the intervention. A total of 135 patients completed the study. The higher the COPD assessment test (CAT) score and the higher the number of disease exacerbations in the past year, the worse the adherence. The proportion of patients with at least one error in the inhalation technique at baseline was 86.44% for Turbohaler, 76.60% for Discus, and 54.17% for HandiHaler. After pharmacist intervention, the error rate was decreased to 32.20% for Turbohaler, 29.79% for Discus, and 22.92% for HandiHaler. The average score of the Patient Satisfaction and Preference Questionnaire was increased from 74.44 ± 7.48 to 83.97 ± 5.88 (P < 0.001), and the average adherence score was increased from 4.78 ± 1.46 to 6.52 ± 1.11 (P < 0.001). Users of all three devices showed significant increases in satisfaction with performance (P < 0.001), and the increase in intentional adherence was more significant than that in unintentional adherence (P < 0.001). This study found that inhaler training and medication management by pharmacists were feasible and could improve inhaler technique, patient satisfaction, and adherence.

    Current situation of household storage drugs in China: based on a questionnaire survey
    Shuilian Qian, Huan Xu, Wenxia Liu, Zhao Yang, Bin Jiang
    2023, 32(1):  64-67.  DOI: 10.5246/jcps.2023.01.006
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    The current situation of household storage drugs in China was investigated with 6278 questionnaires by random sampling. It was found that 56.2% of surveyed families had reserved drugs, and traditional Chinese medicine, over-the-counter medicine, and drugstore-purchased drug accounted for 64.2%, 53.8%, and 79.1%, respectively. Therefore, it might be necessary to strengthen the propaganda and education on rational prescription, preparation, and rational drug use.

    News
    The group of Prof. Luwen Shi and Prof. Xiaodong Guan made progress in the evaluation of rational drug use in primary healthcare facilities in China  
    School of Pharmaceutical Sciences, Peking University Health Science Center
    2023, 32(1):  68-70. 
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    The group of Prof. Luwen Shi and Prof. Xiaodong Guan made progress in the evaluation of rational drug use in primary healthcare facilities in China.
    The group of Prof. Tianyuan Fan won the AAPS (American Association of Pharmaceutical Sciences) PharmSciTech High Impact Article Award
    School of Pharmaceutical Sciences, Peking University Health Science Center
    2023, 32(1):  71-71. 
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    The group of Prof. Tianyuan Fan won the AAPS (American Association of Pharmaceutical Sciences) PharmSciTech High Impact Article Award.
    The group of Prof. Yimin Cui published a major review in Signal Transduction and Targeted Therapy: Targeting integrin pathways: mechanisms and advances in therapy
    School of Pharmaceutical Sciences, Peking University Health Science Center
    2023, 32(1):  72-74. 
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    The group of Prof. Yimin Cui published a major review in Signal Transduction and Targeted Therapy: Targeting integrin pathways: mechanisms and advances in therapy.
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    Information for Authors
    Journal of Chinese Pharmaceutical Sciences
    2023, 32(1):  75-84. 
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