1.Establishment and evaluation of a rat model of phlegm-heat and Fu-organ excess syndrome following ischemic stroke
Xingfeng PING ; Junying LYU ; Kai LI ; Zongxuan HUANG ; Jianxin YIN
Chinese Journal of Tissue Engineering Research 2025;29(11):2301-2309
BACKGROUND:Traditional Chinese medicine has rich experience and unique advantages in the empirical treatment of phlegm-heat and Fu-organs excess syndrome of ischemic stroke.In order to further explore the therapeutic targets and mechanisms of traditional Chinese medicine for this disease,it is crucial to establish a stable and reliable animal model of phlegm-heat and Fu-organs excess syndrome combined with empirical symptoms of ischemic stroke. OBJECTIVE:To explore the establishment method and evaluation system of the rat model of ischemic stroke with phlegm-heat and Fu-organ excess syndrome. METHODS:Sixty male Sprague-Dawley rats were randomly divided into four groups:blank control group(n=12),ischemic stroke group(n=18),disease+syndrome group(n=18),phlegm-heat and Fu-organ excess syndrome group(n=12),all of which were given high-fat diet for 25 days.On the 26th day,the rats in the blank control group and ischemic stroke group were intragastrically given normal saline and high fat diet,while those in the other two groups were intragastrically given autologous feces suspension and high fat diet for 3 continuous days.After gavage,ischemic stroke models were established using the suture method in the ischemic stroke group and disease+syndrome group.The changes in diet,water intake,body mass,body temperature,fecal traits,nasal secretions,sputum in the throat,and tongue image were recorded.Neurological deficits,tongue image,blood lipid levels,morphological changes of brain tissue and carotid artery,and the serum levels of motilin and somatostatin were detected. RESULTS AND CONCLUSION:Compared with the control group,the rats in the disease+syndrome group had shortness of breath,listlessness,irritability,bradykinesia,a large number of secretions around the nose,audible and heavy sputum in the throat,decreased diet and water intake,increased body mass,body temperature,and slingual vein score,decreased fecal pellet count,Bristol score and fecal moisture content,increased serum total cholesterol,triglyceride,low-density lipoprotein and somatostatin levels,decreased motilin level,increased neurological deficit score,significant pathological changes of the carotid artery,and significant morphological changes of the brain tissue.The ischemic stroke group only showed pathological changes of ischemic brain tissue,without the characteristics of phlegm-heat and Fu-organ excess syndrome.The phlegm-heat and Fu-organ excess syndrome group could present with the typical characteristics of traditional Chinese medicine syndromes,without the pathological changes of brain tissue with ischemic stroke.To conclude,the compound modeling method of high-fat induction combined with suture method and autologous feces gavage can establish an animal model of ischemic stroke with phlegm-heat and Fu-organ excess syndrome.
2.Exploring Immune Mechanism of Alveolar Epithelial Homeostasis in Idiopathic Pulmonary Fibrosis Based on Principle of "Spleen being in Charge of Defensive Function"
Jie CHEN ; Lijian PANG ; Ningzi ZANG ; Jingyu WANG ; Siyu LI ; Yuanyu LIANG ; XU XINZHU ; Ping LEI ; Xiaodong LYU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(9):259-264
Idiopathic pulmonary fibrosis (IPF) can be classified as pulmonary collateral disease,and its pathogenesis is mainly characterized by the loss of Qi meridian nourishment,the loss of Yin meridian nourishment,and the formation of blood stasis in the blood vessels. Qi Yin deficiency is the pathological basis that runs through IPF,and obstruction of meridians and collaterals is a key element in the development of the disease. The dysfunction of "spleen being in charge of the defensive function" is closely related to the formation of the pathological pattern of "lung deficiency and collateral stasis" in IPF. The term "spleen being in charge of the defensive function" originated from the Yellow Emperor's Inner Canon. If the spleen is healthy,the Qi will be filled with vitality. Positive energy is stored inside,evil cannot be dried up. Its concept is quite similar to the immune defense function in modern medicine. If the principle of "spleen being in charge of the defensive function" is lost,the key structure and function of the IPF alveolar epithelial barrier may be abnormal,and it can interact with various innate immune cells to promote inflammation and fibrosis processes. Therefore,this article explains the imbalance of immune homeostasis in IPF alveolar epithelium from two aspects:the barrier function of alveolar epithelial cells(AECs) and their interaction with innate immune cells. And based on the theory of "spleen being in charge of the defensive function",using traditional Chinese medicine for strengthening the spleen and nourishing Qi to treat IPF from the perspective of the spleen. This not only strengthens the scientific connotation of "spleen being in charge of the defensive function" in the pathogenesis of IPF,but also provides new research directions and ideas for its future clinical prevention and treatment.
3.Analysis of life education under the framework of technological rationalism in contemporary social
Dongfang LYU ; Xiaoyu DING ; Ping DU
Chinese Medical Ethics 2025;38(3):346-351
In response to the current shift in the main content and research focus of life education, which is gradually shifting from the behavioural norms of “health and safety” to thinking about the essence of life and issues of life and death. Drawing on the theoretical resources of the political philosophy of life, it was pointed out that the internalization of “life” has led to the incidence of “burnout” and depression. Faced with the technological rationalism of contemporary society, how to deal with external technological training was the real problem that life education needs to solve. For life education, it was necessary to study how to reemphasize the practical dimension, as well as expand the theme of “health and safety” from simple behavioural norms to ways of dealing with modern society and showcasing life forms.
4.A preliminary exploration of influenza-like illness surveillance and influenza vaccination in Jing’an District of Shanghai, 2017‒2023
Ruijue HUA ; Lixue LYU ; Biao XU ; Jin HUANG ; Ping YU
Shanghai Journal of Preventive Medicine 2025;37(4):313-318
ObjectiveTo understand the surveillance of influenza-like illness (ILI) and influenza vaccination status in Jing’an District, Shanghai, and to provide a basis for optimizing influenza prevention and control strategies. MethodsThe sentinel surveillance data for ILI and virological surveillance data of influenza viruses in Jing’an District were collected from the Chinese influenza surveillance information system, and data for influenza vaccination were collected from Shanghai immunization information system from September 2017 to August 2023. Epidemiological characteristics of ILI, influenza etiology, and the temporal and population distributions of influenza vaccination were analyzed using descriptive epidemiological methods. ResultsILI as a percentage of total visit surveillance units (ILI%) reported by sentinel hospital was increased in Jing’an District of Shanghai from September 2017 to August 2023 (F=18.841, P=0.012). The peak of the influenza cases mainly appeared in winter-spring, but there were two peaks in winter-spring and summer from September 2019 to August 2020, from September 2020 to August 2021, and from September 2021 to August 2022. In particular, there were two peaks in winter-spring from September 2022 to August 2023, with a rebound during the descending process. The average positive rate of ILI was 21.64% (2 421/11 189) during the 6 years. There was a peak in winter-spring during every year with the exception of the period from September 2020 to August 2021. The dominant strains were B/Yamagata and A/H1N1 in winter-spring from September 2017 to August 2018. The dominant strain was A/H1N1 in winter-spring from September 2018 to August 2019 and from September 2022 to August 2023. The dominant strain was B/Victoria in winter-spring from September 2019 to August 2020 and from September 2021 to August 2022. Different subtype strains occurred alternately, and the dominant strains were A/H1N1 and A/H3N2 in recent years. The influenza vaccination coverage was 2.94% from September 2017 to August 2023, and the vaccination coverage was highest in young children. The vaccination coverage for females was higher than that for males (χ2=546.963, P<0.001), and the vaccination coverage for registered residents was higher compared to that for migrants (χ2=123.141, P<0.001). ConclusionILI% exhibits an upward trend in Jing’an District of Shanghai, and the dominant strain is A subtype. The influenza vaccination coverage is still low, which is insufficient to have an impact on the spread of influenza. It is recommended that the surveillance of ILI and variations of influenza virus strains should be improved continuously, and effective steps should be taken to promote influenza vaccination.
5.Analysis of clinical characteristics and influential factors of drug-induced liver injury in children caused by intravenous azithromycin
Wanhui LI ; Xiaoqian LYU ; Dan SU ; Baofeng HUO ; Hejun CHEN ; Ping YAN
China Pharmacy 2025;36(20):2566-2570
OBJECTIVE To analyze the clinical characteristics and influential factors of drug-induced liver injury (DILI) in children caused by intravenous azithromycin. METHODS Clinical data of 157 DILI pediatric cases caused by intravenous azithromycin, reported by the Hengshui Adverse Drug Reaction Monitoring Center from January 2015 to January 2025, were collected as the observation group. Clinical data of pediatric patients who received intravenous azithromycin but did not develop DILI during the same period at Hengshui People’s Hospital were collected in a 1∶1 ratio to serve as the control group. The clinical classification, severity and prognosis of DILI in pediatric patients from the observation group were analyzed. Univariate and multivariate Logistic regression analyses were used to screen the independent risk factors for DILI in children caused by intravenous azithromycin. RESULTS Among 157 DILI cases, 92 cases (58.60%) had hepatocellular injury-type, 51 cases (32.48%) had cholestatic-type, and 14 cases (8.92%) had mixed-type. DILI severity was grade 1 in 117 cases (74.52%), grade 2 in 33 cases (21.02%), and grade 3 in 7 cases (4.46%). Liver function had all recovered after stopping medication and symptomatic treatment. Combined with acetaminophen [OR=3.769, 95%CI (1.615, 8.235), P=0.021], daily dose of azithromycin>10 mg/kg [OR= 2.237, 95%CI (1.075, 4.655), P=0.034] were independent risk factors for DILI in children caused by intravenous azithromycin. CONCLUSIONS Hepatocellular injury-type and cholestatic-type are relatively common in children with DILI caused by intravenous azithromycin, with mild severity being predominant and showing a favorable prognosis. Combination with acetaminophen and daily dose>10 mg/kg are independent risk factors for azithromycin-induced DILI in children.
6.Research progress on association between prenatal exposure to endocrinedisrupting chemicals and children's executive function
Ping LYU ; Xing WANG ; Fangbiao TAO
Journal of Environmental and Occupational Medicine 2025;42(10):1268-1274
In recent decades, the prevalence of neurodevelopmental disorders in children has been on the rise worldwide, and executive function plays an important role in early childhood development. Previous studies have shown that environmental endocrinedisrupting chemicals can enter brain tissue through the placental and blood-brain barriers, affecting neurodevelopment and jeopardizing children’s executive function development. During pregnancy, a special period for women of reproductive age, exposure to endocrinedisrupting chemicals not only affects intrauterine development, but may also have far-reaching effects on offspring health after birth. This article focused on reviewing domestic and international research literature on the effects of exposure to endocrinedisrupting chemicals [e.g., phthalates, polybrominated diphenyl ethers (PBDEs), perfluorinated and polyfluorinated alkyl substances (PFASs), and bisphenol A (BPA)] during pregnancy on offspring executive function published from 2015 to 2024, and further exploring potential associated biological mechanisms. Most studies pointed that endocrinedisrupting chemicals during pregnancy may affect children's executive function through triggering neuroinflammation, neurotransmitter disruption, and placental dysfunction. Specifically, exposure to phthalates and PBDEs during pregnancy is associated with reduced executive function in children, and the effects of PFAS and BPA are unclear. These findings suggest that more epidemiological studies and animal experiments need to be conducted in the future to deeply explore the effects of endocrinedisrupting chemicals exposure during pregnancy on children's executive function and its potential causal mechanisms, so as to provide new ideas for preventing neurodevelopmental disorders in children and promoting healthy development of children.
7.Multi-gene molecular identification and pathogenicity analysis of pathogens causing root rot of Atractylodes lancea in Hubei province.
Tie-Lin WANG ; Yang XU ; Xiu-Fu WAN ; Zhao-Geng LYU ; Bin-Bin YAN ; Yong-Xi DU ; Chuan-Zhi KANG ; Lan-Ping GUO
China Journal of Chinese Materia Medica 2025;50(7):1721-1726
To clarify the species, pathogenicity, and distribution of the pathogens causing the root rot of Atractylodes lancea in Hubei province, the tissue separation method was used to isolate the pathogens from root rot samples in the main planting areas of A. lancea in Hubei. Based on the preliminary identification of the Fusarium genus by the internal transcribed spacer(ITS) sequence, three housekeeping genes, EF1/EF2, Btu-F-FO1/Btu-F-RO1, and FF1/FR1, were amplified and sequenced. Subsequently, a phylogenetic tree was constructed based on these TEF gene sequences to classify the pathogens. The pathogenicity of these strains was determined using the root irrigation method. A total of 194 pathogen strains were isolated using the tissue separation method. Molecular identification using the three housekeeping genes identified the pathogens as F. solani, F. oxysporum, F. commune, F. equiseti, F. tricinctum, F. redolens, F. fujikuroi, F. avenaceum, F. acuminatum, and F. incarnatum. Among them, F. solani and F. oxysporum were the dominant strains, widely distributed in multiple regions, with F. solani accounting for approximately 54% of the total isolated strains and F. oxysporum accounting for approximately 34%. Other strains accounted for a relatively small proportion, totaling approximately 12%. The results of pathogenicity determination showed that there were certain differences in pathogenicity among strains. The analysis of the pathogenicity differentiation of the widely distributed F. solani and F. oxysporum strains revealed that these dominant strains in Hubei were mainly highly pathogenic. This study determined the species, pathogenicity, and distribution of the pathogens causing the root rot of A. lancea in Hubei province. The results provide a scientific basis for further understanding the root rot of A. lancea and its epidemic occurrence and scientifically preventing and controlling this disease.
Plant Diseases/microbiology*
;
Atractylodes/microbiology*
;
Phylogeny
;
Plant Roots/microbiology*
;
Fusarium/classification*
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China
;
Virulence
;
Fungal Proteins/genetics*
8.Polysaccharide extract PCP1 from Polygonatum cyrtonema ameliorates cerebral ischemia-reperfusion injury in rats by inhibiting TLR4/NLRP3 pathway.
Xin ZHAN ; Zi-Xu LI ; Zhu YANG ; Jie YU ; Wen CAO ; Zhen-Dong WU ; Jiang-Ping WU ; Qiu-Yue LYU ; Hui CHE ; Guo-Dong WANG ; Jun HAN
China Journal of Chinese Materia Medica 2025;50(9):2450-2460
This study aims to investigate the protective effects and mechanisms of polysaccharide extract PCP1 from Polygonatum cyrtonema in ameliorating cerebral ischemia-reperfusion(I/R) injury in rats through modulation of the Toll-like receptor 4(TLR4)/NOD-like receptor protein 3(NLRP3) signaling pathway. In vivo, SD rats were randomly divided into the sham group, model group, PCP1 group, nimodipine(NMDP) group, and TLR4 signaling inhibitor(TAK-242) group. A middle cerebral artery occlusion/reperfusion(MCAO/R) model was established, and neurological deficit scores and infarct size were evaluated 24 hours after reperfusion. Hematoxylin-eosin(HE) and Nissl staining were used to observe pathological changes in ischemic brain tissue. Transmission electron microscopy(TEM) assessed ultrastructural damage in cortical neurons. Enzyme-linked immunosorbent assay(ELISA) was used to measure the levels of interleukin-1β(IL-1β), interleukin-6(IL-6), interleukin-18(IL-18), tumor necrosis factor-α(TNF-α), interleukin-10(IL-10), and nitric oxide(NO) in serum. Immunofluorescence was used to analyze the expression of TLR4 and NLRP3 proteins. In vitro, a BV2 microglial cell oxygen-glucose deprivation/reperfusion(OGD/R) model was established, and cells were divided into the control, OGD/R, PCP1, TAK-242, and PCP1 + TLR4 activator lipopolysaccharide(LPS) groups. The CCK-8 assay evaluated BV2 cell viability, and ELISA determined NO release. Western blot was used to analyze the expression of TLR4, NLRP3, and downstream pathway-related proteins. The results indicated that, compared with the model group, PCP1 significantly reduced neurological deficit scores, infarct size, ischemic tissue pathology, cortical cell damage, and the levels of inflammatory factors IL-1β, IL-6, IL-18, TNF-α, and NO(P<0.01). It also elevated IL-10 levels(P<0.01) and decreased the expression of TLR4 and NLRP3 proteins(P<0.05, P<0.01). Moreover, in vitro results showed that, compared with the OGD/R group, PCP1 significantly improved BV2 cell viability(P<0.05, P<0.01), reduced cell NO levels induced by OGD/R(P<0.01), and inhibited the expression of TLR4-related inflammatory pathway proteins, including TLR4, myeloid differentiation factor 88(MyD88), tumor necrosis factor receptor-associated factor 6(TRAF6), phosphorylated nuclear factor-kappaB dimer RelA(p-p65)/nuclear factor-kappaB dimer RelA(p65), NLRP3, cleaved-caspase-1, apoptosis-associated speck-like protein(ASC), GSDMD-N, IL-1β, and IL-18(P<0.05, P<0.01). The protective effects of PCP1 were reversed by LPS stimulation. In conclusion, PCP1 ameliorates cerebral I/R injury by modulating the TLR4/NLRP3 signaling pathway, exerting anti-inflammatory and anti-pyroptotic effects.
Animals
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Toll-Like Receptor 4/genetics*
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NLR Family, Pyrin Domain-Containing 3 Protein/genetics*
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Rats, Sprague-Dawley
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Rats
;
Reperfusion Injury/genetics*
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Male
;
Signal Transduction/drug effects*
;
Polysaccharides/isolation & purification*
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Polygonatum/chemistry*
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Brain Ischemia/genetics*
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Drugs, Chinese Herbal/administration & dosage*
;
Mice
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Humans
9.Root causes of quality changes in cultivated Chinese materia medica and countermeasures for high-quality production.
Chao-Geng LYU ; Chuan-Zhi KANG ; Ya-Li HE ; Zhi-Lai ZHAN ; Sheng WANG ; Xiu-Fu WAN ; Lan-Ping GUO
China Journal of Chinese Materia Medica 2025;50(13):3529-3535
In order to support the implementation of the Opinions on Improving the Quality of Traditional Chinese Medicine and Promoting the High-Quality Development of the Traditional Chinese Medicine Industry and fundamentally promote the high-quality development of Chinese materia medica(CMM) industry, this article analyzed the quality and safety issues arising during the transition of CMM from wild harvesting to cultivation. Root causes of these issues were identified, including changes in the habitats of medicinal plants caused by inappropriate field cultivation patterns, excessive use of chemical inputs such as fertilizers and pesticides, and shortened cultivation periods due to rising economic costs. To address the above issues, the following countermeasures and suggestions were proposed to advance the high-quality development of CMM:(1) comprehensively adjust the cultivation patterns, vigorously promote ecological cultivation of CMM, and ensure production quality and safety of CMM from the source;(2) strengthen the breeding of high-quality, stress-resistant CMM varieties, improve cultivation techniques to reduce the use of fertilizers and pesticides, and improve the quality and efficiency of ecological cultivation of CMM;(3) systematically design the production, operation, and supervision models for ecological cultivation of CMM, carry out demonstrations of "high quality with fair price", and ensure the sustainable development of ecological cultivation of CMM.
Drugs, Chinese Herbal/standards*
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Quality Control
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Plants, Medicinal/chemistry*
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Plant Roots/chemistry*
;
China
;
Fertilizers/analysis*
;
Materia Medica/standards*
;
Medicine, Chinese Traditional/standards*
10.Mechanism of Reactive Oxygen/Nitrogen Species in Liver Ischemia-Reperfusion Injury and Preventive Effect of Chinese Medicine.
Lei GAO ; Yun-Jia LI ; Jia-Min ZHAO ; Yu-Xin LIAO ; Meng-Chen QIN ; Jun-Jie LI ; Hao SHI ; Nai-Kei WONG ; Zhi-Ping LYU ; Jian-Gang SHEN
Chinese journal of integrative medicine 2025;31(5):462-473
Liver ischemia-reperfusion injury (LIRI) is a pathological process involving multiple injury factors and cell types, with different stages. Currently, protective drugs targeting a single condition are limited in efficacy, and interventions on immune cells will also be accompanied by a series of side effects. In the current bottleneck research stage, the multi-target and obvious clinical efficacy of Chinese medicine (CM) is expected to become a breakthrough point in the research and development of new drugs. In this review, we summarize the roles of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in various stages of hepatic ischemia-reperfusion and on various types of cells. Combined with the current research progress in reducing ROS/RNS with CM, new therapies and mechanisms for the treatment of hepatic ischemia-reperfusion are discussed.
Reperfusion Injury/drug therapy*
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Reactive Oxygen Species/metabolism*
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Reactive Nitrogen Species/metabolism*
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Humans
;
Liver/drug effects*
;
Animals
;
Medicine, Chinese Traditional
;
Drugs, Chinese Herbal/pharmacology*

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