1.Effect of Simo decoction on the regulation of NLRP3/Caspase-1/GSDMD signal pathway on duodenal microinflammation in rats with functional dyspepsia
Qin LIU ; Xiao-Yuan LIN ; Ling-Feng YANG ; Qian LUO ; Yun-Zong HAN ; Si-Qing CHEN ; Hai-Yue ZHANG ; Shu ZHOU ; Sai-Nan ZHOU
The Chinese Journal of Clinical Pharmacology 2024;40(1):67-71
Objective To investigate the effects of Simo decoction on duodenal microinflammation and NOD-like receptor thermal protein domain associated protein 3(NLRP3)/cysteinyl aspartate-specific proteinase-1(Caspase-1)/gasdermin D(GSDMD)signaling pathway in rats with functional dyspepsia(FD).Methods The FD model was established by multifactorial method.SD rats were randomly divided into normal group,model group(FD model),positive control group(gavage administration of 0.305 mg·kg-1 mosapride injection)and experimental-H,-M,-L groups(gavage administration of 5.62,2.81,1.40 g·kg-1 Simo decoction).Small intestinal advancement rate and gastric emptying rate was determined;the levels of interleukin(IL)-1 β and IL-18 in serum were determined by enzyme linked immunosorbent assay(ELISA);the protein expression of NLRP3 and GSDMD in duodenal tissue was detected by Western blotting.Results The gastric emptying rates of normal,model,positive control and experimental-H,-M,-Lgroupswere(58.34±5.72)%,(29.16±8.37)%,(48.77±6.10)%,(48.35±6.04)%,(48.20±3.49)%and(39.24±4.20)%;the small intestinal propulsion rates were(82.01±7.55)%,(41.95±9.53)%,(64.61±10.18)%,(75.04±9.76)%,(60.58±7.13)%and(45.89±7.40)%;serum IL-1 β expression were(12.86±0.88),(43.73±4.60),(18.84±0.86),(24.61±1.57),(19.14±0.77)and(29.04±0.72)pg·mL-1;IL-18 expressions were(95.00±3.74),(170.60±8.78),(108.50±3.05),(118.90±3.45),(99.90±8.70)and(141.00±3.71)pg·mL-1;the relative expression levels of NLRP3 proteins were 0.32±0.02,0.84±0.05,0.42±0.03,0.48±0.02,0.61±0.04 and 0.62±0.05;the relative expression levels of GSDMD proteins were 0.34±0.05,0.93±0.06,0.35±0.03,0.52±0.02,0.53±0.06 and 0.55±0.05,respectively.Compared with the normal group,the above indexes in the model group have statistical significance;compared with the model group,the above indexes in the experimental-H group and the positive control group also have statistical significance(P<0.01 or P<0.05).Conclusion Simo decoction can effectively improve the general condition and duodenal microinflammation in FD rats,and the mechanism may be related to the inhibition of duodenal NLRP3/Caspase-1/GSDMD signaling pathway.
2.Pharmacokinetic study of crushed posaconazole enteric-coated tablets compared with oral suspension in rabbits
Feng-Xi LIU ; Si-Wen LI ; Hui-Ying ZONG ; Wu-Lin ZHAG ; Xin HUANG ; Yan LI
The Chinese Journal of Clinical Pharmacology 2024;40(17):2543-2547
Objective To compare the pharmacokinetics of crushed posaconazole enteric-coated tablets and oral suspension after intragastric administration in rabbits.Methods The experiment was designed in a randomized cross-over study.Six New Zealand rabbits were intragastrically administrated with crushed posaconazole enteric-coated tablets or suspension,and blood was collected at specific time points.The concentration of posaconazole in plasma was determined by high-performance liquid chromatography,and the pharmacokinetic parameters of both groups were calculated with DAS 2.0 software.Results The main pharmacokinetic parameters of posaconazole enteric-coated tablets and suspension were obtained as follows:AUC0-twere(40.03±5.04)and(49.92±16.09)μg·mL-1·h;AUC0-∞ were(44.00±4.50)and(51.10±16.80)μg·mL-1·h;t1/2 were(7.30±1.13)and(8.53±1.34)h;Cmrx were(3.12±0.57)and(2.78±0.60)μg·mL-1;apparent volume of distribution(Vd)were(2.40±0.34)and(2.59±0.76)L·kg-1;clearance rate(CL)were(0.23±0.02)and(0.22±0.08)L·h-1·kg.There were no statistic differences in AUC0-t,Cmax and Vd between posaconazole suspension and crushed enteric-coated tablets after intragastric administration(all P>0.05).Conclusion There was no pharmacokinetic advantage for crushed enteric-coated tablets against oral suspension.
3.Methodological Consideration on Combination Model of TCM Clinical Practice Guidelines and Real-world Study
Guozhen ZHAO ; Huizhen LI ; Ning LIANG ; Haili ZHANG ; Bin LIU ; Qianzi CHE ; Feng ZHOU ; He LI ; Xiaowen CHEN ; Long YE ; Jiahao LIN ; Xingyu ZONG ; Dingyi WANG ; Nannan SHI ; Yanping WANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):87-93
The clinical practice guidelines of traditional Chinese medicine (TCM) have problems such as limited clinical application and unclear implementation effects, which may be related to the lack of clinical practice evidence. To provide reliable and precise evidence for clinical practice, this article proposes a model of combining TCM guidelines with real-world study, which includes 4 steps. Firstly, during the implementation process of the guidelines, a high-quality research database is established. Secondly, the recommendations in the guidelines are evaluated based on the established database in multiple dimensions, including applicability, effectiveness, safety, and cost-effectiveness, and thus their effectiveness in practical applications can be determined. Thirdly, based on the established database, core prescriptions are identified, and the targeted populations and medication plans are determined. That is, the best treatment regimen is established based on the analysis of abundant clinical data regarding the effects of different medication frequencies, dosages, and duration on efficacy. Fourthly, the guidelines are updated according to the real-world evidence. The research based on this model can provide real-world evidence for ancient and empirical prescriptions, improving their application in clinical practice. Moreover, this model can reduce research costs and improve research efficiency. When applying this model, researchers need to pay attention to the quality of real-world evidence, ensuring that it can truly reflect the situation in clinical practice. In addition, importance should be attached to the clinical application of guideline recommendations, ensuring that doctors can conduct standardized diagnosis and treatment according to the guidelines. Finally, full-process participation of multidisciplinary experts is encouraged to ensure the comprehensiveness and scientificity of the study. In conclusion, the application of this model will contribute to the development of TCM guidelines responsive to the needs of clinical practice and achieve the goal of promoting the homogenization of TCM clinical diagnosis and treatment.
4.Key Techniques and Methodological Considerations for Formation of Traditional Chinese Medicine Syndrome Classification Standards
Guozhen ZHAO ; Xingyu ZONG ; Xueyao ZHAO ; Huizhen LI ; Feng ZHOU ; Xuanling ZENG ; Jiahao LIN ; Ning LIANG ; Haili ZHANG ; Qianzi CHE ; Bin LIU ; Nannan SHI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):257-261
The classification of traditional Chinese medicine (TCM) syndromes is one of the core technical elements in the industry standard of Specification of Diagnosis and Therapeutic Effect Evaluation of Diseases and Syndromes in TCM. In the past,when clinical standards for TCM were formulated,the determination of TCM syndrome classification relied heavily on textbooks and expert experience,lacking systematic research. This approach thus failed to reflect the advancement and scientificity of the standards,thereby affecting their implementation and application. This article reviewed the presentation forms and technical methods of TCM syndrome classification,including the two-tier syndrome classification model with primary and secondary symptoms,as well as the application of modern literature research,ancient literature research,Delphi method,in-depth expert interviews,consensus conferences,and real-world research. When syndrome classification standards are developed,it is necessary to build upon modern literature research,adopt a mixed approach combining qualitative research and quantitative analysis results,and reach expert consensus through consensus conferences. Through systematic research,the scientificity,applicability,and coordination of TCM syndrome classification standards can be enhanced,providing guidance for the standardization of TCM.
5.Development of pre-deployment base-based training course for medical units in peacekeeping level-II hospitals
Can CHEN ; Wenqiong DU ; Renqing JIANG ; Xin ZHONG ; Wei ZHANG ; Lin CHEN ; Zhaowen ZONG
Chinese Journal of Medical Education Research 2024;23(4):482-486
Objective:To establish a practical and systematic pre-deployment base-based training course for medical units in peacekeeping level-II hospitals.Methods:We surveyed the current status of pre-deployment training of medical teams in peacekeeping level-II hospitals, and organized expert discussions to preliminarily construct centralized training course contents. At the same time, the Delphi method was used to conduct two rounds of questionnaire-based consultation to evaluate the overall framework design of the course and the rationality and importance scores of each module. The contents of the pre-deployment training course were further selected and optimized based on the positive coefficient (%), authority coefficient (Cr), coefficient of concordance ( W), and coefficient of variation (Cv). Results:The contents of the pre-deployment training course for the medical units of peacekeeping level-II hospitals were preliminarily established. The experts scored high for the combat onsite first-aid skills module [rationality score, (9.32±0.75) points; importance score, (9.45±0.65) points] and the combat wound treatment module [rationality score, (9.33±0.75) points; importance score, (9.28±0.74) points], and scored lowest for the field survival module [rationality score, (7.95±2.28) points; importance score, (7.87±2.16) points].Conclusions:The established contents of the pre-deployment base-based training course for the medical units of peacekeeping level-II hospitals are reasonable and practical, which lays the foundation for perfecting the pre-deployment training system of peacekeeping medical teams.
6.Chinese expert consensus on clinical application of Tongxinluo in prevention and treatment of coronary heart disease
Yong HUO ; Zong-Gui WU ; Qian LIN ; "Chinese Expert Consensus on Clinical Application of Tongxinluo in Prevention and Treatment of Coronary Heart Disease"Working Group
Chinese Journal of Interventional Cardiology 2024;32(4):181-190
Chinese Expert Consensus on Clinical Application of Tongxinluo in Prevention and Treatment of Coronary Heart Disease strictly follows the consensus formulation specifications,with evidence-based medicine as the main,consensus as the supplement,and experience as the reference,aiming to standardize the reasonable application of Tongxinluo in the treatment of coronary heart disease.In combination with conventional treatment,Tongxinluo can increase clinical benefits for common types of coronary heart disease.
7.Mechanism of action and research progress of vaccine adjuvants
Li ZHANG ; Chang LU ; Minghui AN ; Mengmeng WANG ; Xiaoyu ZONG ; Lin YU ; Zhuo-Ling RAN ; Jing SONG ; Huijie LI ; Jian GONG
Chinese Journal of Clinical Pharmacology and Therapeutics 2024;29(7):785-791
Vaccines are among the most effec-tive measures for preventing infectious diseases and play a crucial role in controlling the spread of these diseases.Adjuvants,serving as auxiliary com-ponents in vaccines,are indispensable in the vac-cine development process.Ideal adjuvants not only enhance the immune response,enabling the body to achieve optimal protective immunity but also play important roles in reducing the dosage of im-munogens and lowering vaccine production costs.To meet the demands of novel vaccines,many new types of adjuvants have been developed.However,there is still a lack of adjuvants that are safe,effec-tive,easy to prepare,highly pure,and suitable for a variety of vaccines in clinical settings.This article categorizes adjuvants and summarizes their mecha-nisms of action and characteristics,focusing on tra-ditional aluminum salt adjuvants and more modern lipid-based and nucleic acid-based adjuvants.The summary is based on a computer search of data-bases including PubMed,Embase,The Cochrane Li-brary,CNKI(China National Knowledge Infrastruc-ture),VIP Database,and Wanfang Database,using English search keywords such as Adjuvants,Vac-cine,Vaccine Adjuvant,aluminum salts,MF59,AS03,Toll-like receptor agonist,etc.,and corre-sponding Chinese search terms.The aim is to pro-vide references for the development and applica-tion of adjuvants.
8.Application of KIH Structure in Recombinant Expression of Human Interleukin-35 in vitro
Kai-Yue ZHANG ; Zong-Yan LI ; Rui-Qing CAO ; Lin-Lin MENG ; Xiang-Wei HU ; Yu-Chao GU ; Jian-Gang WANG
Chinese Journal of Biochemistry and Molecular Biology 2024;40(6):857-866
Interleukin-35(IL-35)is an important immunosuppressive cytokine that has been shown to play a role in the immune response of various diseases.In this study,we cloned the coding sequence of human IL-35 gene,constructed single subunit expression vectors pXC17.4-p35 and pcDNA3.1(+)-EBI3,and co-transfected CHO-K1 cells to express IL-35 in vitro.No binding was found between subunits of p35 and EBI3.Knobs-into-Holes(KIH)can solve the problem of heavy chain mismatch of heterolo-gous antibodies.Therefore,expression vectors pXC17.4-p35-Fch and pcDNA3.1(+)-EBI3-Fck were constructed by fusing KIH structures on the basis of the original sequences to express the recombinant fu-sion protein of KIH-IL-35.The expression vectors of two subunits were exchanged at the same time to verify the influence of different vectors on the expression level of KIH-IL-35.The analysis of various pro-tein detection methods showed that the correct expression rate of KIH-IL-35 structure was significantly im-proved.Affinity purification of KIH-IL-35 was performed after large amount of expression,and the bind-ing activity of KIH-IL-35 to glycoprotein 130(gp130)was detected by ELISA.The results showed that the binding of KIH-IL-35 to gp130 was concentration dependent.The indirect activity of KIH-IL-35 and M1 cells was detected by cell activity assay.Further results showed that the inhibition rate of M1 cells in-creased in a dose-dependent manner with the concentration of KIH-IL-35.In addition,a method for de-termining IL-35 activity by activated human peripheral blood mononuclear cells was successfully estab-lished.Activated PBMCs increased in a dose-dependent manner with KIH-IL-35 concentration.In sum-mary,this study utilized the KIH-IL-35 model to enhance the expression of recombinant human IL-35 and validated its high activity in vitro,providing new ideas for the study of IL-35 and the recombinant expres-sion of similar heterodimeric cytokines.
9.Novel Immune-related Proteins Identified from Mytilus coruscus by Hemocytes Full-length Transcriptome and Serum Differential Proteome
Wen-Hui XIAO ; Hao-Dong WANG ; Zong-Xin YANG ; Fang SONG ; Yue WANG ; Jian-Yu HE ; Xiao-Lin ZHANG ; Xiao-Jun YAN ; Zhi LIAO
Chinese Journal of Biochemistry and Molecular Biology 2024;40(7):947-963
Mytilus is one of bivalves with great economic and ecological values.The innate immune de-fense of Mytilus shows great significance in the study of marine biological immunology.Hemolymph is the main immune tissue for Mytilus.The Nanopore full-length transcriptome of Mytilus coruscus hemocytes,and the serum differential proteomics based on SDS-PAGE analysis were performed to identify key pro-teins involving in the immune response of Mytilus hemolymph in response of different bacteria and fungi stresses.A total of 44 proteins were identified in the serum induced by different microorganisms.Among them,26 proteins showed significant differential expression level in response to different microbial stres-ses,and their functions were involved in protein folding protection,cell autophagy and apoptosis regula-tion,reactive oxygen species production,energy metabolism regulation,cell detoxification,and immune regulation.The changes in expression levels of these proteins varied in response to different bacterial and fungal stresses,suggesting that Mytilus has different immune response strategies to different bacterial and fungal stresses.The results provide a new scientific basis for understanding the differential immune mech-anism of Mytilus innate immune system in response to different types of microbial invasion,as well as the screening of specific biomarker proteins for microbial infection,and provide ideas for the healthy develop-ment and disease prevention of shellfish aquaculture.
10.Mechanism of Toddalia asiatica in treatment of osteodestruction in rheumatoid arthritis based on network pharmacology and experimental verification
Lu JIANG ; Zong-Xing ZHANG ; Wei-Yi LI ; Dao-Zhong LIU ; Zhuo-Ma BAO ; Qin-Yun NIE ; Lin YUAN
Chinese Pharmacological Bulletin 2024;40(10):1979-1990
Aim To investigate the effect of Toddalia asiatica(TA)on bone destruction in rheumatoid ar-thritis(RA)and its possible mechanism by network pharmacology and in vitro experiments.Methods The active components and targets of TA against RA bone damage were analyzed by network pharmacology.Mo-lecular docking was performed by using AutoDock and PyMOL software pairs.MC3T3-e1 cells were cultured in vitro,and the effect of Toddalia asiatica alcohol ex-tract(TAAE)on cell viability was detected by CCK-8,and appropriate drug concentration and intervention time were screened.The osteoblast model was induced by osteogenic induction medium,and the osteogenic differentiation was detected by ALP staining,activity detection and alizarin red staining.The expression of pathway-related proteins Wnt3a and β-catenin was de-tected by Western blot,and the pathway inhibitor DKK-1 was used to further verify whether TAAE regulated osteoblast differentiation through the Wnt/β-catenin signaling pathway.Results A total of 158 anti-RA bone destruction targets and 56 core targets were se-lected.The enrichment of KEGG signaling pathway mainly included cancer pathway,phosphatidylinositol 3-kinase/protein kinase B signaling pathway and cAMP signaling pathway.The results of CCK-8 showed that 1 g·L-1 TAAE could significantly improve cell survival rate.The results of ALP staining and ALP activity de-tection showed that TAAE could significantly increase the staining positive rate and ALP activity of cells in-duced by osteogenic induction medium.Western blot showed that TAAE could increase the expression of Wnt3a and β-catenin.The expression of these proteins decreased after DKK-1 inhibitors were used.Conclu-sion TAAE can regulate osteoblast differentiation through Wnt/β-catenin signaling pathway to treat os-teodestruction in rheumatoid arthritis.

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