1.Comparison of clinical efficacy of evolocumab and probucol after PCI in patients with ultra-high-risk atherosclerotic cardiovascular disease
Yi YUAN ; Na LI ; Haiying SUN ; Jing SUN ; Yongqiang MA ; Yan WU ; Guohong YANG ; Junxiang LIU
China Pharmacy 2026;37(5):645-649
OBJECTIVE To compare the efficacy and safety of evolocumab and probucol in patients with ultra-high-risk atherosclerotic cardiovascular disease (ASCVD) following percutaneous coronary intervention (PCI). METHODS A retrospective analysis was conducted on 156 ultra-high-risk ASCVD patients who underwent PCI in our institution between January 1, 2023 and December 31, 2024. According to the lipid-lowering regimen, the patients were categorized into evolocumab group ( n =86) and probucol group ( n =70). Changes in lipid parameters [total cholesterol (TC), low-density lipoprot ein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides, lipoprotein (a), and lipid goal achievement rate ] , inflammatory markers [interleukin-6 (IL-6) and C-reactive protein (CRP) ] , and cardiac function indices (left ventricular ejection fraction, left ventricular end-systolic diameter, left ventricular end-diastolic diameter, and N-terminal pro-B-type natriuretic peptide) were compared between two groups at baseline and after 6 months of treatment. The incidence of adverse clinical events during treatment, including acute myocardial infarction, in-stent restenosis, acute heart failure, cerebral hemorrhage, and stroke, was also evaluated. RESULTS No statistically significant differences were observed between the two groups at baseline ( P >0.05). After 6 months of treatment, both groups demonstrated significant improvements in lipid profiles (except HDL-C) and inflammatory markers compared to those at baseline ( P <0.05). The evolocumab group exhibited greater reductions in TC, LDL-C, IL-6, and CRP, along with a higher lipid target achievement rate, compared with the probucol group ( P <0.05). There were no statistically significant differences in the cardiac function-related indicators before and after treatment between the two groups, nor in the incidence of adverse events during the treatment ( P >0.05). CONCLUSIONS For ultra-high-risk ASCVD patients after PCI, both of the above treatment options are associated with improvements in blood lipid and inflammatory response, with good safety during short-term follow-up. Evolocumab shows superior efficacy in TC, LDL-C and inflammatory markers reduction and lipid target achievement, compared to probucol.
2.Advances in the JAK2/STAT3 signaling pathway and its inhibitors in diffuse large B cell lymphoma
Chuanyang LU ; Qiuni CHEN ; Yuye SHI ; Yuan DENG ; Tingting JI ; Zhengyuan LIU ; Chunling WANG ; Liang YU
China Pharmacy 2026;37(5):682-688
Abnormal activation of the Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathway is involved in the pathogenesis of diffuse large B-cell lymphoma (DLBCL). In recent years, inhibitors targeting JAK2 and STAT3 have emerged as promising therapeutic candidates in DLBCL. This review summarizes the efficacy and safety profiles of JAK2 inhibitors (e.g., ruxolitinib) and STAT3 inhibitors (direct small-molecule inhibitors, the antisense oligonucleotide, and proteolysis targeting chimeras, etc.) in preclinical models and clinical trials. Accumulating evidence indicates that JAK2 and STAT3 inhibitors exhibit antitumor activity and are generally well tolerated in a subset of DLBCL patients. Meanwhile, the development of novel drug delivery systems has significantly enhanced the stability, bioavailability, and targeting ability of the compounds. Furthermore, JAK2 and STAT3 inhibitors may exhibit synergistic effects when combined with other therapy strategies (such as combinations with B-cell receptor signaling pathway inhibitors, immunomodulators, or other targeted drugs). However, current clinical applications are still in their early stages. Future research should concentrate on precision treatment strategies based on the genetic subtyping of DLBCL, and further refine the delivery systems for inhibitors as well as combination drug regimens to improve clinical outcomes.
3.Patient fibrinogen management from a blood transfusion medicine perspective
Chixiang LIU ; Keyuan LAI ; Yuan YAO ; Kuncheng WANG ; Houmei FENG ; Qiusui MAI ; Yinmei LIAO ; Yingsong WU
Chinese Journal of Blood Transfusion 2026;39(2):265-276
From the perspective of transfusion medicine and based on the vision and framework of patient blood management, this article combines the advances in basic science, blood transfusion, laboratory, and clinical medicine. It aims to systematically review the key elements and characteristics of patient fibrinogen management by maintaining and optimizing patients' hemostatic function while reducing blood transfusions. This review enriches the connotation of transfusion medicine, especially patient blood management, and provides valuable insights for clinical practice.
4.Mechanism of MEK/Ras/Raf/ERK Signaling Pathway Modulated by Mimenghua Prescription on Inflammatory Response in Dry Eye Animal Model
Shi TAN ; Pei LIU ; Yuan ZHONG ; Sainan TIAN ; Pengfei JIANG ; Genyan QIN ; Qinghua PENG ; Jun PENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):211-221
ObjectiveThis paper aims to investigate the effects and mechanism of Mimenghua prescription in modulating the mitogen-activated protein kinase kinase (MEK)/rat sarcoma viral oncogene homolog (Ras)/rapidly accelerated fibrosarcoma kinase (Raf)/extracellular signal-regulated kinase (ERK) signaling pathway to inhibit inflammatory responses in a dry eye animal model. MethodsA total of 60 C57BL/6J mice (eight weeks old, half male and half female) were used in the experiment. Ten mice were randomly selected as the blank control group, while the remaining 50 were exposed to a controlled dry system and received instillation of 0.2% benzalkonium chloride (BAC) into the eyes for four weeks to establish a dry eye mouse model. After successful modeling, the mice were randomly divided into five groups: Model group, sodium hyaluronate group, and Mimenghua prescription groups with low dose (4.83 g·kg-1), medium dose (9.67 g·kg-1), and high dose (19.34 g·kg-1). The mice in the model group received an equal volume of normal saline via gavage for four weeks. The mice in the sodium hyaluronate group received instillation of sodium hyaluronate eye drops twice daily for 14 consecutive days. The tear secretion volume, tear film break-up time (TBUT), and corneal fluorescein staining were evaluated once every two weeks. After four weeks of administration, mice were euthanized, and their lacrimal gland tissues and corneas were harvested. Hematoxylin-eosin (HE) staining was used to assess histopathological morphology. Western blot was performed to detect the protein expression levels of MEK, Ras, Raf, and ERK. Enzyme-linked immunosorbent assay (ELISA) was used to measure the contents and expressions of MEK, Ras, Raf, ERK, and interleukin (IL)-1β in lacrimal gland and corneal tissues of the mice in each group. Quantitative real-time polymerase chain reaction (Real-time PCR) was employed to determine mRNA expression levels of MEK, Ras, Raf, and ERK. ResultsThe Mimenghua prescription groups and the sodium hyaluronate group exhibited significantly increased tear secretion volume (P<0.05) and prolonged TBUT (P<0.05) after treatment. Ocular surface damage of mice was visibly recovered. Western blot results indicated that protein expression levels of MEK, Ras, Raf, and ERK in the lacrimal gland and corneal tissues were significantly downregulated in the sodium hyaluronate group and Mimenghua prescription group with high dose (P<0.05). ELISA results showed that IL-1β levels were highest in the model group but significantly reduced in the sodium hyaluronate group and Mimenghua prescription groups (P<0.05). Both ELISA and Real-time PCR results demonstrated that the expression levels of MEK, Ras, Raf, and ERK in the lacrimal glands and corneal tissues were significantly elevated in the model group (P<0.05), but markedly downregulated in the sodium hyaluronate group and Mimenghua prescription groups (P<0.05), suggesting that Mimenghua prescription can decrease the expressions of MEK, Ras, Raf, and ERK in the lacrimal glands and corneal tissues. ConclusionMimenghua prescription can reduce inflammatory responses, increase tear secretion, prolong TBUT, and promote corneal recovery by inhibiting the MEK, Ras, Raf, and ERK signaling pathways in lacrimal gland and corneal tissues.
5.Qualitative study on the process evaluation of tobacco control intervention in junior high school
LIU Wanqi, CAO Yuan, SU Qi, LUO Chuning, ZENG Xinying, LIU Ying, LIU Fen, LIU Shiwei
Chinese Journal of School Health 2026;47(2):183-188
Objective:
To evaluate the implementation process of a school-family collaborative "online+offline" tobacco control intervention program in junior high school in Beijing and to explore the execution status, influencing factors and sustainability potential of the intervention, so as to provide evidence for optimizing youth tobacco control strategies.
Methods:
In November 2024, using the random number table method, four first year junior high school classes were selected from three schools each in Fengtai District, Tongzhou District, and Fangshan District of Beijing. One class served as the control group, while the other three classes were designated as intervention groups (one each for online intervention, offline intervention, and combined online offline intervention). The control group received only conventional education.The online intervention group was engaged in WeChat push interventions, including watching micro videos, viewing promotional materials, participating in online quizzes and mini games; the offline intervention group attended knowledge lectures, played peer games, and participated in offline knowledge competitions; the combined online offline intervention group integrated all the aforementioned online and offline intervention measures. The intervention period was from November 2024 to June 2025, spanning a total of 7 months. Based on the Practical, Robust Implementation and Sustainability Model(PRISM) framework, a qualitative research design was employed to conduct semi structured interviews with 48 participants (12 in each of the intervention groups and 12 organizational staff members) from the Centers for Disease Control and Prevention (CDC) in 3 districts and 3 sampled schools. The interview outlines were designed according to the intervention plan. Data was managed using Nvivo 12.0 software and analyzed following Colaizzi s seven step phenomenological analysis method. Theoretical saturation was assessed using a reserved subset of transcripts.
Results:
Four core themes were identified in the tobacco control intervention process. Overall fidelity of intervention implementation was largely consistent with the original plan, and students showed strong willingness and positive evaluations toward interactive formats such as knowledge contests and peer games, though occasional breakdowns in school-family communication and blurred boundaries between online and offline components were observed; the participants showed a polarized response in terms of satisfaction and participation, most students and parents recognized the significance of the activity, and some parents observed a reduction in smoking behavior; the implementation of internal tobacco control policies in the school was strict, and the atmosphere was favorable, but there was still room for improvement, such as the scarcity of community tobacco control activities and the difficulty in implementing smoke free units; implementation and sustainability infrastructure were preliminarily established, such as through homeroom teacher supervision and training student assistants to assisted in activities, while the sustainability support system required further refinement.
Conclusion
The school-family collaborative "online+offline" tobacco control intervention has demonstrated significant positive effects, but further optimization of activity design, enhancement of community reward mechanisms, and standardized training are required to improve the efficacy and sustainability of the intervention.
6.Exploring on Processing Mechanism of Enhanced "Invigorating Spleen and Stopping Diarrhea" Effect of Soil-fried Atractylodis Macrocephalae Rhizoma Based on "Microscopic Characterization, Chemical Analysis and Pharmacodynamic Evaluation" Trinity
Guoshun SHAN ; Yuyan XIAO ; Chu YUAN ; Xiuai CHEN ; Qimiao ZHAO ; Xiang LIU ; Hao WU ; Ke ZHANG ; Siqi LIU ; Yongduo YU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):182-193
ObjectiveTo analyze the processing mechanism underlying the enhanced effect of invigorating spleen and stopping diarrhea of soil-fried Atractylodis Macrocephalae Rhizoma(AMR) by analyzing the changes of microstructure, chemical composition and anti-ulcerative colitis(UC) activity before and after soil stir-frying. MethodsThe microstructure and elemental composition of AMR before and after soil stir-frying were analyzed by scanning electron microscopy-energy dispersive spectroscopy(SEM-EDS), to investigate the differences in microstructure and the underlying causes. Ultra-high performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS) coupled with UNIFI 1.9.2 natural product analysis platform were used to analyze and identify the chemical constituents in raw and soil-fried products, and multivariate statistical methods including principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA) were used to explore the differences and sources of chemical constituents between them. A dextran sulfate sodium(DSS)-induced UC mouse model was established. The method of disease activity index(DAI) was used to evaluate the severity of intestinal inflammation. Hematoxylin-eosin(HE) staining was used to observe the pathological changes of colon tissue, enzyme-linked immunosorbent assay(ELISA) was used to detect the levels of inflammatory factors, Real-time quantitative polymerase chain reaction(Real-time PCR) and Western blot were used to analyze the expressions of key genes and proteins involved in the intestinal mucosal barrier. The 16S rRNA sequencing was used to evaluate the diversity of intestinal flora, headspace gas chromatography-mass spectrometry(HS-GC-MS) was used to explore the levels of short-chain fatty acids(SCFAs) in feces. Base on the above findings, this paper investigated the effects of raw and soil-fried AMR on the biological, chemical, mechanical and immune barriers of model animals, and the differences in pharmacological effects and underlying mechanisms from the perspective of regulating the intestinal mucosal barrier in UC mice. ResultsSEM observation revealed numerous hearth soil particles on the surface of soil-fried AMR, accompanied by bubble-like bulges. At the same time, there were many cracks and folds on the surface of the hearth soil. EDS analysis revealed that the contents of Si, Al, Mg and Ca in soil-fried AMR were significantly higher than those of raw products, and these elements constituted the primary components of hearth soil. UPLC-Q-TOF-MS combined with database comparison was used to identify the chemical constituents of raw and soil-fried AMR. In positive ion mode, a total of 132 components were identified, primarily comprising three categories of terpenoids, polyphenols and amino acids. In negative ion mode, a total of 40 components were identified, primarily polyphenolic and glycoside compounds. Among them, the contents of sesquiterpenes and polyphenolic acids were changed significantly before and after processing. Soil-fried AMR could reduce the DAI score of UC mice, alleviate the shortening of colon length, reduce the levels of pro-inflammatory factors such as interleukin(IL)-17, IL-18, γ-interferon(IFN-γ) and tumor necrosis factor(TNF)-α in serum, increase the levels of anti-inflammatory factors such as secretory immunoglobulin A(sIgA), IL-10, IL-4 and transforming growth factor-β(TGF-β) in serum, increase the expressions of key genes and proteins of intestinal mucosal barrier such as tight junction protein-1(ZO-1), Occludin, Claudin-1 and mucin 2(MUC2) in colonic mucosa, and improve the disorders of intestinal flora diversity and the levels of SCFAs(P<0.05, P<0.01). The raw and stir-fried products of AMR also exhibited the aforementioned effects, but they were weaker than the soil-fried products. Additionally, the auxiliary material hearth soil also had a certain pharmacodynamic effect. ConclusionSoil-fried AMR can enhance the protective effect on intestinal mucosal barrier in UC mice. These changes or heating-induced alterations in the microscopic structure and chemical composition of AMR may be attributed to the dual effects of adsorption of hearth soil.
7.Exploring on Processing Mechanism of Enhanced "Invigorating Spleen and Stopping Diarrhea" Effect of Soil-fried Atractylodis Macrocephalae Rhizoma Based on "Microscopic Characterization, Chemical Analysis and Pharmacodynamic Evaluation" Trinity
Guoshun SHAN ; Yuyan XIAO ; Chu YUAN ; Xiuai CHEN ; Qimiao ZHAO ; Xiang LIU ; Hao WU ; Ke ZHANG ; Siqi LIU ; Yongduo YU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):182-193
ObjectiveTo analyze the processing mechanism underlying the enhanced effect of invigorating spleen and stopping diarrhea of soil-fried Atractylodis Macrocephalae Rhizoma(AMR) by analyzing the changes of microstructure, chemical composition and anti-ulcerative colitis(UC) activity before and after soil stir-frying. MethodsThe microstructure and elemental composition of AMR before and after soil stir-frying were analyzed by scanning electron microscopy-energy dispersive spectroscopy(SEM-EDS), to investigate the differences in microstructure and the underlying causes. Ultra-high performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS) coupled with UNIFI 1.9.2 natural product analysis platform were used to analyze and identify the chemical constituents in raw and soil-fried products, and multivariate statistical methods including principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA) were used to explore the differences and sources of chemical constituents between them. A dextran sulfate sodium(DSS)-induced UC mouse model was established. The method of disease activity index(DAI) was used to evaluate the severity of intestinal inflammation. Hematoxylin-eosin(HE) staining was used to observe the pathological changes of colon tissue, enzyme-linked immunosorbent assay(ELISA) was used to detect the levels of inflammatory factors, Real-time quantitative polymerase chain reaction(Real-time PCR) and Western blot were used to analyze the expressions of key genes and proteins involved in the intestinal mucosal barrier. The 16S rRNA sequencing was used to evaluate the diversity of intestinal flora, headspace gas chromatography-mass spectrometry(HS-GC-MS) was used to explore the levels of short-chain fatty acids(SCFAs) in feces. Base on the above findings, this paper investigated the effects of raw and soil-fried AMR on the biological, chemical, mechanical and immune barriers of model animals, and the differences in pharmacological effects and underlying mechanisms from the perspective of regulating the intestinal mucosal barrier in UC mice. ResultsSEM observation revealed numerous hearth soil particles on the surface of soil-fried AMR, accompanied by bubble-like bulges. At the same time, there were many cracks and folds on the surface of the hearth soil. EDS analysis revealed that the contents of Si, Al, Mg and Ca in soil-fried AMR were significantly higher than those of raw products, and these elements constituted the primary components of hearth soil. UPLC-Q-TOF-MS combined with database comparison was used to identify the chemical constituents of raw and soil-fried AMR. In positive ion mode, a total of 132 components were identified, primarily comprising three categories of terpenoids, polyphenols and amino acids. In negative ion mode, a total of 40 components were identified, primarily polyphenolic and glycoside compounds. Among them, the contents of sesquiterpenes and polyphenolic acids were changed significantly before and after processing. Soil-fried AMR could reduce the DAI score of UC mice, alleviate the shortening of colon length, reduce the levels of pro-inflammatory factors such as interleukin(IL)-17, IL-18, γ-interferon(IFN-γ) and tumor necrosis factor(TNF)-α in serum, increase the levels of anti-inflammatory factors such as secretory immunoglobulin A(sIgA), IL-10, IL-4 and transforming growth factor-β(TGF-β) in serum, increase the expressions of key genes and proteins of intestinal mucosal barrier such as tight junction protein-1(ZO-1), Occludin, Claudin-1 and mucin 2(MUC2) in colonic mucosa, and improve the disorders of intestinal flora diversity and the levels of SCFAs(P<0.05, P<0.01). The raw and stir-fried products of AMR also exhibited the aforementioned effects, but they were weaker than the soil-fried products. Additionally, the auxiliary material hearth soil also had a certain pharmacodynamic effect. ConclusionSoil-fried AMR can enhance the protective effect on intestinal mucosal barrier in UC mice. These changes or heating-induced alterations in the microscopic structure and chemical composition of AMR may be attributed to the dual effects of adsorption of hearth soil.
8.Construction of glucose oxidase–loaded nanogels and its inhibition effect on the Warburg effect in glioma cells
Wenbo ZHOU ; Weilin LI ; Wuting DAI ; Ruiyao LIU ; Yuan YU
Journal of Pharmaceutical Practice and Service 2026;44(3):132-136
Objective To construct glucose oxidase(GOx)–loaded nanogels (GONGs), optimize their formulation, and evaluate their capacity to inhibit the Warburg effect in glioma cells. Methods A responsive polymer (HAM) was synthesized and used to self-assemble GONGs, which were then characterized. Encapsulation efficiency and drug loading were determined using fluorescence spectrophotometry. Biocompatibility was tested by measuring cytotoxicity and hemolytic activity. Western blotting was used to evaluate the effects of GONGs on the expression of proteins associated with the Warburg phenotype and oxidative damage in glioma cells. Results GONGs prepared at a drug–to–polymer ratio of 1∶10 exhibited a particle size of 140.3 nm and a zeta potential of −27.2 mV. Compared with free GOx, GONGs markedly reduced cytotoxicity, increased the IC50 in hUVEC cells from 2.150 nmol/L to 74.86 nmol/L, and significantly decreased hemolysis. At a GOx concentration of 2 nmol/L, GONGs effectively downregulated glycolysis-related proteins, such as HK2 and LDHA, and inhibited glutamine metabolism in glioma cells. Conclusion GONGs exhibited high GOx loading capacity, significantly reduced GOx-induced cytotoxicity, inhibited the Warburg effect in glioma cells and induced oxidative damage.
9.QingNangTCM: a parameter-efficient fine-tuning large language model for traditional Chinese medicine
Xuming TONG ; Liyan LIU ; Yanhong YUAN ; Xiaozheng DING ; Huiru JIA ; Xu YANG ; Sio Kei IM ; Mini Han WANG ; Zhang XIONH ; Yapeng WANG
Digital Chinese Medicine 2026;9(1):1-12
Objective:
To develop QingNangTCM, a specialized large language model (LLM) tailored for expert-level traditional Chinese medicine (TCM) question-answering and clinical reasoning, addressing the scarcity of domain-specific corpora and specialized alignment.
Methods:
We constructed QnTCM_Dataset, a corpus of 100 000 entries, by integrating data from ShenNong_TCM_Dataset and SymMap v2.0, and synthesizing additional samples via retrieval-augmented generation (RAG) and persona-driven generation. The dataset comprehensively covers diagnostic inquiries, prescriptions, and herbal knowledge. Utilizing P-Tuning v2, we fine-tuned the GLM-4-9B-Chat backbone to develop QingNangTCM. A multi-dimensional evaluation framework, assessing accuracy, coverage, consistency, safety, professionalism, and fluency, was established using metrics such as bilingual evaluation understudy (BLEU), recall-oriented understudy for gisting evaluation (ROUGE), metric for evaluation of translation with explicit ordering (METEOR), and LLM-as-a-Judge with expert review. Qualitative analysis was conducted across four simulated clinical scenarios: symptom analysis, disease treatment, herb inquiry, and failure cases. Baseline models included GLM-4-9B-Chat, DeepSeek-V2, HuatuoGPT-II (7B), and GLM-4-9B-Chat (freeze-tuning).
Results:
QingNangTCM achieved the highest scores in BLEU-1/2/3/4 (0.425/0.298/0.137/0.064), ROUGE-1/2 (0.368/0.157), and METEOR (0.218), demonstrating a balanced and superior normalized performance profile of 0.900 across the dimensions of accuracy, coverage, and consistency. Although its ROUGE-L score (0.299) was lower than that of HuatuoGPT-II (7B) (0.351), it significantly outperformed domain-specific models in expert-validated win rates for professionalism (86%) and safety (73%). Qualitative analysis confirmed that the model strictly adheres to the “symptom-syndrome-pathogenesis-treatment” reasoning chain, though occasional misclassifications and hallucinations persisted when dealing with rare medicinal materials and uncommon syndromes.
Conclusion
Combining domain-specific corpus construction with parameter-efficient prompt tuning enhances the reasoning behavior and domain adaptation of LLMs for TCM-related tasks. This work provides a technical framework for the digital organization and intelligent utilization of TCM knowledge, with potential value for supporting diagnostic reasoning and medical education.
10.Comparative analyses of the detection performance of five multiplex polymerase chain reaction nucleic acid detection kits for respiratory pathogens
Fang YUAN ; Lei BI ; Jiajing LIU ; Huanru WANG ; Jun FENG ; Yuan ZHUANG ; Min CHEN ; Zheng TENG
Shanghai Journal of Preventive Medicine 2026;38(2):165-169
ObjectiveTo evaluate the detection specificity for clinical samples and the detection capability for standard substances of five commercially available multiplex polymerase chain reaction (PCR) nucleic acid detection kits (hereinafter referred to as the kits) for respiratory pathogens, and to provide a reference for selecting appropriate detection kits for multi-pathogen nucleic acid testing of respiratory infections. MethodsA total of 60 respiratory pathogen-positive clinical samples with known redults were selected and tested using the five kits (labeled as A, B, C, D, and E). The detection rates and Kappa coefficients were calculated to evaluate the consistency between the results from these kits and those from single-pathogen PCR kits. According to the limit of detection (LOD) provided by the kits, standard substances of respiratory pathogens (including 12 types such as influenza virus, Mycoplasma pneumoniae, and Bordetella pertussis) were diluted to four concentrations (250, 500, 1 000, and 2 000 copies·mL⁻¹). All five kits were used for detection to evaluate their respective detection capabilities. ResultsCompared with the results from single-pathogen PCR kits, the five tested kits demonstrated good consistency (all Kappa >0.80). Among them, Kit A had the highest detection rate (100.00%), followed by Kits C and E (98.33%), and then Kits B and D (95.00%). All five kits showed a relatively low false negative rate (FNR) for samples with a cycle threshold (Ct) value ≤35 (≤2.38%). However, for samples with Ct values>35, the FNR increased accordingly(average FNR=6.67%, P=0.029). Kit C exhibited the highest detection sensitivity for the tested standard substances (average LOD: 458.33 copies·mL⁻¹), followed by Kit D, then Kits A/E, and finally Kit B. ConclusionThe five multiplex PCR kits showed good consistency with single-pathogen detection results, but each had its own performance emphasis. Kit A, with the highest detection rate and high throughput, is suitable for targeted viral screening. Kit B, covering the broadest pathogen spectrum (including fungi/bacteria), is suitable for comprehensive respiratory pathogen screening. Kits C, D and E, are applicable for rapid detection. It is important to note that the detection efficacy of all kits decreases for low viral load samples with Ct values >35. In practical application, selection should be based on specific screening objectives, throughput requirements, and sample types.


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