87 results match your criteria: "Capital Medical University Beijing 100069[Affiliation]"

[Differences in components and anti-inflammatory and analgesic activities of two phase states of Wuzhuyu Decoction].

Zhongguo Zhong Yao Za Zhi

November 2024

School of Traditional Chinese Medicine, Capital Medical University Beijing 100069, China Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research Beijing 100069, China.

This study rapidly identified and quantified the chemical components of the Wuzhuyu Decoction nanophase(WZYD-N) and suspension phase(WZYD-S) using ultra-high performance liquid chromatography coupled with triple quadrupole mass spectrometry(UPLC-QQQ-MS/MS). Based on preliminary pharmacodynamic experiments and network pharmacology analysis, the differential anti-inflammatory and analgesic activities of WZYD-N and WZYD-S were explored to understand their pharmacodynamic basis. WZYD-N and WZYD-S were separated by differential centrifugation-dialysis, and their particle size, Zeta potential, PDI, and morphology were characterized by dynamic light scattering and transmission electron microscopy.

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The evaluation of the effectiveness of traditional Chinese medicine(TCM) has long been a "bottleneck" issue that restricts the healthy development and internationalization of TCM. This article systematically analyzes the differences in diagnostic and treatment principles, material composition, new drug development pathways, efficacy cognition, and evaluation methodology between Chinese and Western medicine from the underlying logic of medical perspective. On this basis, it integrates the evidence elements of clinical experience, experimental research, and clinical trials, and for the first time proposes and establishes a new strategy and methodology for the evaluation of the effectiveness of TCM: the integrated evidence chain-based effectiveness evaluation of traditional Chinese medicine(iEC-Eff), forming an integrated evaluation and confirmation model of "clinical experience-experimental research-clinical trial" for the effectiveness of TCM.

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Article Synopsis
  • - Oral Chinese patent medicine is a well-established treatment method derived from centuries of Chinese medical practices, known for being effective, portable, and convenient, but it faces challenges concerning safety and proper usage in clinical settings.
  • - Current issues include improper adherence to usage guidelines, risks of adverse reactions, and toxicity, leading to concerns about pharmacovigilance for these medicines.
  • - Experts in China are developing tailored pharmacovigilance guidelines to ensure safe and rational use of oral Chinese patent medicines, aligning with the country’s needs and addressing the unique aspects of these treatments.
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Highly diastereoselective self-assembly reactions give both enantiomers (Λ and Δ) of anti-parallel triple-stranded bimetallic Co(ii) and Co(iii) cationic helices, without the need for resolution; the first such reaction for Co. The complexes are water soluble and stable, even in the case of Co(ii). Studies in a range of cancer and healthy cell lines indicate high activity and selectivity, and substantial differences between enantiomers.

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Background: BRII-196 and BRII-198 are two recombinant human immunoglobulin (Ig) G1 monoclonal antibodies (mAbs) that non-competitively target distinct epitope regions within the receptor-binding domain (RBD) of the coronavirus spike glycoproteins. These antibodies are derived directly from human B cells of individuals who recovered from COVID-19.

Objective: To analyze the efficacy of BRII-196/BRII-198 in the treatment of coronavirus disease 2019 (COVID-19) vaccine breakthrough infections.

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To investigate polydatin's effects on low-density lipoprotein cholesterol (LDL-C) and lipid metabolism in mice with triple-negative breast cancer (TNBC) and hyperlipidemia, as well as the underlying mechanism of proprotein convertase subtilisin/kexin type 9 (PCSK9). , we designed two animal models, namely breast pad inoculation of TNBC model and TNBC with lung metastatic were inoculated with the caudal vein model. Mice were administered a high-fat diet.

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[Functional characterization and enzymatic properties of flavonoid glycosyltransferase gene CtUGT49 in Carthamus tinctorius].

Zhongguo Zhong Yao Za Zhi

December 2023

State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China.

Carthami Flos, as a traditional blood-activating and stasis-resolving drug, possesses anti-tumor, anti-inflammatory, and immunomodulatory pharmacological activities. Flavonoid glycosides are the main bioactive components in Carthamus tinctorius. Glycosyltransferase deserves to be studied in depth as a downstream modification enzyme in the biosynthesis of active glycoside compounds.

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In this study, the authors cloned a glycosyltransferase gene PpUGT2 from Paris polyphylla var. yunnanensis with the ORF length of 1 773 bp and encoding 590 amino acids. The phylogenetic tree revealed that PpUGT2 belonged to the UGT80A subfamily and was named as UGT80A49 by the UDP-glycosyltransferase(UGT) Nomenclature Committee.

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Glioblastoma (GBM) is an aggressive malignant primary brain cancer with poor survival. Hypoxia is a hallmark of GBM, which promotes tumor cells spreading (invasion) into the healthy brain tissue. To better elucidate the influence of hypoxia on GBM invasion, we proposed a data-driven modeling framework for predicting cellular hypoxia (CHPF) by integrating single cell transcriptome profiling and hypoxia gene signatures.

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Objectives: To explore the key genes involved in the occurrence and development of glioblastoma (GBM) by analyzing whole-transcriptome sequencing and biologic data from GBM and normal cerebral cortex tissues and to search for important noncoding RNA (ncRNA) molecular markers based on the competitive endogenous RNA (ceRNA) network.

Methods: Ten GBM and normal cerebral cortex tissues were collected for full transcriptome sequencing, screened for differentially expressed (DE) mRNAs, miRNAs, lncRNAs, and circRNAs, and subjected to bioinformatic analysis. We constructed a Protein-Protein Interaction (PPI) network and a circRNA/lncRNA-miRNA-mRNA regulatory network and identified them using reverse transcription-quantitative polymerase chain reaction (RT-qPCR).

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Profound changes have taken place in human disease spectrum, constitution spectrum, and drug use behavior, and the safety of traditional Chinese medicine(TCM) faces new trends and problems. In particular, serious adverse reactions/events such as liver injury and kidney injury caused by non-toxic TCM have been frequently reported, overturning people's understanding of TCM safety, and even shaking the public's confidence in the development of TCM. In the new era of globalization, correctly understanding the situation and problems of TCM safety and addressing the dilemmas in safety evaluation and risk prevention of TCM are the key missions to be undertaken by TCM practitioners.

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With the increase in the medical level, the improvement of adverse drug reaction(ADR) monitoring systems, and the enhancement of public awareness of safe medication, drug safety incidents have been frequently reported. Drug-induced liver injury(DILI), especially liver injury attributed to herbal and dietary supplements(HDS), has globally attracted high attention, bringing great threats and severe challenges to the people for drug safety management such as clinical medication and medical supervision. Consensus on drug-induced liver injury had been published by the Council for International Organizations of Medical Sciences(CIOMS) in 2020.

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The degeneration of monoaminergic system and the reduction of monoamine neurotransmitters(MNTs) are associated with the occurrence of a variety of neuropsychiatric diseases, becoming the key indicators for clinical diagnosis and treatment. Recent studies suggested gut microbiota could influence the occurrence, development, and treatment of neuropsychiatric diseases by directly or indirectly regulating the synthesis and metabolism of MNTs. Rich clinical experience has been accumulated in the amelioration and treatment of neuropsychiatric diseases by traditional Chinese medicines.

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Protein polypeptides and polysaccharides, the indispensable macromolecular active components in traditional Chinese medicine, are widely found in Chinese medicine decoction after the decoction of traditional Chinese medicine. However, through oral administration, these macromolecules are digested by the stomach and intestine and thus fail to be absorbed in prototype. This is inconsistent with the actual clinical efficacy of Chinese medicine decoction.

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In this paper, we report an efficient approach for the direct fluoroalkylthiolation of indoles with iodofluoroethane in the presence of NaSO. In this work, we employed readily available iodofluoroethane and NaSO as fluoroalkylthiolation reagents, featuring mild conditions and a wide range of indole substrates. In addition, fluoroalkylthiolated 2,3'-biindole derivatives can also be prepared by this method.

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Objective: The aim for this trial was to preliminarily evaluate the effectiveness and safety of transcutaneous electrical acupoint stimulation (TEAS) for bone loss in patients with immobilization after surgical fixation of ankle and foot fractures.

Methods: A total of 80 patients with immobilization after surgical fixation of ankle and foot fractures were randomly divided into an intervention group (n=40) or control group (n=40). The intervention group was given TEAS treatment combined with routine orthopedic treatment, and the control group was given only routine orthopedic treatment.

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Since exploding rates of modern mental diseases, application of antidepressants has increased. Worryingly, the antidepressant-induced liver injury has gradually become a serious health burden. Furthermore, since most of the knowledge about antidepressant hepatotoxicity are from pharmacovigilance and clinical case reports and lack of observational studies, the underlying mechanisms are poorly understood and there is a lack of efficient treatment strategies.

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[Cloning and functional characterization of two oxidosqualene cyclase genes from Siraitia grosvenorii].

Zhongguo Zhong Yao Za Zhi

November 2022

School of Traditional Chinese Medicine, Capital Medical University Beijing 100069, China Beijing Shijitan Hospital, Capital Medical University Beijing 100038, China.

Oxidosqualene cyclases(OSCs), belonging to a multigene family, can convert a common precursor 2,3-oxidosqualene into various types of triterpene skeletons. In this study, primers were designed according to the analysis of Siraitia grosvenorii transcriptome data, and two OSC genes SgAS1(GenBank No. QDO67189.

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Oridonin Inhibits SARS-CoV-2 Oridonin, a natural product extracted from , possesses a wide range of pharmacological properties, including anti-inflammatory, anti-cancer, anti-microbial, neuroprotection, immunoregulation, etc. In article number 2100124, Baisen Zhong, Litao Sun, and co-workers demonstrate that Oridonin targets the SARS-CoV-2 3CL protease by covalently binding to cysteine145 in its active pocket to exert an anti-SARS-CoV-2 effect, which provides a novel candidate for the treatment of COVID-19.

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[Seed morphology and germination characteristics of Tripterygium wilfordii].

Zhongguo Zhong Yao Za Zhi

June 2022

Beijing Shijitan Hospital, Capital Medical University Beijing 100038, China School of Traditional Chinese Medicine, Capital Medical University Beijing 100069, China.

Article Synopsis
  • * Researchers analyzed various seed characteristics (size, viability, moisture content, etc.) and tested different treatments, discovering that soaking in 100 mg·L~(-1) GA_3 solution significantly improved germination.
  • * High concentrations of GA_3 (500 mg·L~(-1) and 1,000 mg·L~(-1)) cut the germination time down from over 3 months to under 15 days, aiding in effective breeding and propagation of the species.
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Traditional Chinese medicine(TCM) has made outstanding contributions to disease prevention and treatment, survival, and reproduction of the Chinese nation. Currently, the inheritance and innovative development of TCM have become a national strategy. However, in recent years, adverse reactions/events of Chinese medicine frequently occurred.

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The current COVID-19 pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is an enormous threat to public health. The SARS-CoV-2 3C-like protease (3CLpro), which is critical for viral replication and transcription, has been recognized as an ideal drug target. Herein, it is identified that three herbal compounds, Salvianolic acid A (SAA), (-)-Epigallocatechin gallate (EGCG), and Oridonin, directly inhibit the activity of SARS-CoV-2 3CLpro.

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To accurately understand the biological pollution level and toxicity of polydisperse nanoplastics, an effective solution is presented to separate polydisperse nanoplastics and detect their size, mass and number concentration in a biological matrix by asymmetrical flow field fractionation coupled with a diode array detector and a multiangle light scattering detector.

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The output of high level innovative Chinese medicines(CM) is very rare for a few years, which is in sharp contrast to the reality that antibody drugs, small molecular targeted therapy, antibody-drug conjugate and other innovative drugs have heavy investment and high yield. Acceleration for the research and development of innovative CM drugs obviously relies on breakthrough of the modes of thinking and methodology. Deeply influenced by the thinking of allopathic medicine in Western science system, the mainstream of current basic researches on CM is to find the components and their molecular mechanisms that can directly inhibit or antagonize the target in disease focal.

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[Research progress in synthetic biology of active compounds in Chinese medicinal plants].

Zhongguo Zhong Yao Za Zhi

November 2021

School of Traditional Chinese Medicine, Capital Medical University Beijing 100069, China Beijing Shijitan Hospital, Capital Medical University Beijing 100038, China.

Mecicinal plants boast abundant natural compounds with significant pharmacological activity, and such compounds, featuring diversified and complex structures, can be used for research and development of drugs. At present, these natural compounds are directly extracted from herbs which, however, suffer from damaged wild resources and shortage of planting resources attributing to the increasing demand. Moreover, the low content in medicinal plants and complex structures are another challenge to the research and development of drugs.

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