1.Analysis of Animal Models of Allergic Asthma Based on Data Mining
Han WU ; Zhixiang HU ; Meiqi JI ; Hao YIN ; Yu'e LYU ; Chuntao ZHAI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):211-217
ObjectiveTo provide a basis for the establishment of an ideal animal model of allergic asthma by statistically analyzing the modeling characteristics and the selection of indicators of the available models. MethodsWe retrieved the relevant articles from China National Knowledge Infrastructure(CNKI), VIP, Wanfang Data, SinoMed, and PubMed with "allergic asthma" as the keyword and the time interval from January 2019 to January 2024. Through integrating the literature and extracting data, we used Excel 2021 to create a personal database and sorted out the animal strains, genders, allergenic substances, modeling routes, and test indicators and methods. Excel 2021, Cytoscape 3.10.2, and SPSS Modeler 18.0 were then used to analyze the relevant characteristics of the animal models. ResultsA total of 418 articles were included in the database, and the comparative analysis showed that the most frequently used animal strain for modeling was BALB/c mice, and female animals were mostly used. The main modeling method was sensitization by intraperitoneal injection of ovalbumin (OVA), which was combined with intranasal inhalation. The test indicators mainly included appearance signs, cellular analysis, lung histopathology, lung function indicators, and protein and gene expression in the lung. The test methods mainly involved pathological staining, enzyme-linked immunosorbent assay, immunohistochemistry, immunofluorescence, Western blot, and polymerase chain reaction(PCR) assays. ConclusionThere is no recognized modeling method or evaluation standard for the animal models of allergic asthma. Based on the results of data analysis, the OVA-induced allergic asthma model in BALB/c mice is recommended. The main criteria for evaluating the success of modeling are the general behavioral changes, the morphological changes of the airway and inflammatory cell infiltration in the lung tissue, the changes of pro-inflammatory and anti-inflammatory cytokines in the serum, and the alterations of inflammatory cells in the bronchoalveolar lavage fluid.
2.Effects of Electroacupuncture on the Hippocampus Glutamate System of Acute Myocardial Ischemia Rats
Sijia TONG ; Kun WANG ; Shengbing WU ; Meiqi ZHOU
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(3):92-97
Objective To observe the effects of electroacupuncture(EA)on glutamate(Glu),metabotropic glutamate receptor 2/3(mGluR2/3)and apoptosis related proteins expression in hippocampus in rats with acute myocardial ischemia(AMI);To explore the mechanism of EA against AMI.Methods Totally 50 SD rats were randomly divided into sham-operation group,model group,EA group and inhibitor group,with 10 rats in each group.Except for the sham-operation group,the rats were treated with ligation at the left anterior descending coronary artery to establish AMI model.The rats in the EA group was treated with EA at"Shenmen"and"Tongli",30 minutes each time,once a day for 3 consecutive days.The rats in the inhibitor group were treated with injection of LY341459 via the lateral ventricle 30 min after modeling.HE staining was used to observe myocardial tissue morphology,and ELISA was used to detect Caspase-3 activity in myocardial tissue and Glu content in hippocampal tissue,immunofluorescence staining was used to detect mGluR2/3 expression in hippocampal tissue,TUNEL staining was used to detect apoptosis in hippocampal tissue cells,Western blot was used to detect the expressions of PI3K,Akt,and Caspase-3 protein in hippocampal tissue.Results Compared with the sham-operation group,the myocardial cells of the model group rats showed sparse and swelling with severe infiltration of inflammatory cells;the activity of Caspase-3 in myocardial tissue significantly increased,and the Glu content,positive expression of mGluR2/3,number of apoptotic cells in hippocampal tissue significantly increased(P<0.01),and the expressions of PI3K and Akt proteins in hippocampal tissue were significantly decreased,while the expression of Caspase-3 protein significantly increased(P<0.01).Compared with the model group,myocardial cell edema and inflammatory cell infiltration were reduced in the EA group and inhibitor group,the activity of Caspase-3 in myocardial tissue was significantly decreased,the Glu content,positive expression of mGluR2/3,and number of apoptotic cells in hippocampal tissue were significantly reduced(P<0.01),the expressions of PI3K and Akt proteins in hippocampal tissue significantly increased,while the expression of Caspase-3 protein significantly decreased(P<0.01).Conclusion EA can improve myocardial injury in AMI rats,and its mechanism may be related to activation of PI3K/Akt signaling pathway,inhibition of hippocampal mGluR2/3 overexpression,reduction of Glu accumulation,inhibition of apoptosis of hippocampal neurons and reduction of neurotoxicity.
3.Dynamic Changes of Volatile Components During Processing Process of Jianchangbang Characteristic Ginger Processed Xingpo Pieces Based on HS-GC-MS
Yuxun CHEN ; Wanai XU ; Jingyu WU ; Meiqi LU ; Lingbang MENG ; Cheng XU ; Hailian ZHENG ; Xian ZHANG ; Na ZHANG ; Qianfeng GONG ; Huan YU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(20):127-134
ObjectiveTo reveal the influence of Jianchangbang characteristic processing method on the change process of volatile components and the processing mechanism of reducing toxicity and increasing efficiency of Magnoliae Officinalis Cortex(MOC) by studying the changes in the composition and content of volatile components during the processing of ginger processed Xingpo pieces. MethodSamples of raw products, ginger juice moisturized products and stir-fried and heap moisturized products of MOC were taken according to the set time points, and headspace gas chromatography-mass spectrometry(HS-GC-MS) was used to determine the contents of volatile components in the samples, and the relative content of each component was obtained by peak area normalization. Principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA) were performed on the sample data using SIMCA 14.1 software, and the differential components during the processing were screened with variable importance in the projection(VIP) value>1 as the indicator. ResultA total of 68 volatile components were identified in the samples, among which some of the chemical components with similar structures showed similar trends of changes, and there was also the phenomenon of interconversion between compounds. Compared with the raw products, the contents of 42 components in ginger juice moisturized products increased, while the contents of 25 components decreased, 19 components were unique, and 4 components were unique to the raw products. Compared with ginger juice moisturized products, MOC in the early stage of piling had three unique components, and the contents of 11 components such as cyclosativene and (+)-α-pinene increased, and the contents of 5 components such as tricyclic terpene and α-curcumene decreased, and ginger juice moisturized products had four unique components. Compared with the early stage of piling, in the later stage, the contents of 8 components such as (+)-α-pinene and camphene significantly increased, while the contents of 6 components such as linalool and α-selinene significantly decreased. During the processing of MOC, there were significant changes in the chemical composition of the samples before and after 20 days. The differences between ginger juice moistening and the early stage of piling, the early stage and the later stage of piling could be clearly distinguished. ConclusionDuring the preparation process of ginger processed Xingpo pieces, the addition of ginger juice can reduce the contents of stimulating components, and the contents of active components continue to increase in several stages, such as the addition of ginger juice, frying and heap moisturizing, the quality of the decoction pieces may change significantly at about 20 d of processing. This study can provide a research basis for exploring the processing mechanism of ginger processed Xingpo pieces.
4.Application of daytime neuroimmunotherapy bed model in patients with autoimmune diseases of the nervous system
Jinhua CHEN ; Jing LI ; Yaying MA ; Xiaofei WU ; Meiqi YAO
Chinese Journal of Practical Nursing 2024;40(25):1940-1945
Objective:To explore the application effect of the daytime neuroimmunotherapy bed model in patients with autoimmune diseases of the nervous system.Methods:The quasi-experiment research method was adopted, with the implementation time of the new procedure as the dividing point, 96 patients from November 1, 2020 to October 31, 2022 were selected as the control group, and routine management procedures was adopted.64 patients from November 1, 2022 to October 31, 2023 were selected as the experimental group, and the optimized management process was applied, the intervention effects of the two groups were compared.Results:There were 69 females and 27 males with (39.5 ± 1.4) years old in the control group, 44 females and 20 males with (39.9 ± 1.4) years old in the experimental group. Waiting time for bed, admission time to start medication, length of hospital stay, incidence of adverse drug reactions, timely follow-up rate and patient satisfaction in the experimental group were (24.3 ± 10.6) h, (4.5 ± 1.4) h, (18.9 ± 17.2) h, 4.7%(3/64), 96.9%(62/64) and (99.50 ± 1.14) points, while the control group were (105.3 ± 35.2) h, (36.1 ± 18.7) h, (78.3 ± 63.8) h, 14.6%(14/96), 82.3%(79/96) and (95.74 ± 2.39) points, there were statistical significance between the two groups ( t=2.41-21.17, χ2=7.80, 3.96, all P<0.05). Conclusions:The optimized daytime neuroimmunotherapy bed model can effectively shorten the patients′ bed waiting time, admission time to start medication, and length of hospital stay, reduce the incidence of adverse drug reactions, and improve the timely follow-up rate and patient satisfaction.
5.Pathogenicity of Escherichia coli causing calf encephalitis to cells and mice
Shirong DANG ; Yiheng CAO ; Kaiwen JIA ; Meiqi JIANG ; Xia ZHOU ; Tongzhong WU ; Xin HUANG ; Fagang ZHONG ; Mengli HAN ; Qian ZHANG ; Xiaolan WANG ; Zijie WANG
Chinese Journal of Veterinary Science 2024;44(9):1948-1956
The purpose of this study was to investigate the damage mechanism of pathogenic E.coli on mouse brain microvascular endothelial cells(BMEC cells)and mouse alveolar macrophages(MH-S cells),as well as the lung and brain of healthy mice.In this study,BMEC cells and MH-S cells were infected with pathogenic E.coli strains,and cell morphological changes were observed.Plate counting method was used to detect the adhesion and invasion ability of the strains to cells and the number of bacteria in the lungs and brains of mice.RT-qPCR was used to detect the ex-pression of TNF-α,IL-1β and IL-6 genes in cells and mouse organs at different time periods.West-ern blot was used to detect the expression of p-NF-κB,p-JAK2 and p-STAT3 proteins related to inflammation in cells and mouse organs after infection.The results showed that the cell culture medium of the infection group was turbid,the cell vision became dark and blurred,some cells shrank and died,and more fragments were produced.The adhesion rate and invasion rate of BMEC cells at 3 h were significantly lower than those at 6 h(P<0.050),and the adhesion rate and inva-sion rate of MH-S cells at 3 h were significantly higher than those at 6 h(P<0.010).Infected mice had a large area of swelling and bleeding in the brain,and the lungs had different degrees of swell-ing and bleeding.The bacterial load in the brain and lung was the highest at 12 h.Compared with the control group,the mRNA expression levels of IL-1β,IL-6 and TNF-α in the infection group were significantly increased at 3 h and 6 h(P<0.050),and the mRNA expression levels of inflam-matory factors in BMEC cells and MH-S cells were the highest at 6 and 3 h,respectively.The mR-NA expression of inflammatory factors in the brain and lung of infected mice showed a trend of in-creasing first and then decreasing with time,with the highest expression at 12 h after infection.The expression levels of p-NF-κB protein in BMEC cells,MH-S cells,lung and brain tissues of mice in the infection group were significantly higher than those in the control group(P<0.001),and the expression levels of p-JAK2 protein and p-STAT3 protein were significantly lower than those in the control group(P<0.050).The above results showed that pathogenic E.coli could adhere and invade BMEC cells and MH-S cells,colonize in lung and brain tissues of mice,promote the expres-sion of NF-κB protein in cells and tissues,inhibit the expression of JAK2 protein and STAT3 pro-tein,and then stimulate cells and tissues to produce inflammatory response.
6.Study on the extraction process of Xinyi Powder by ambi-extracting and the inclusion process of volatile oil
Huimin WU ; Meiqi ZHAO ; Lizhi XU ; Yang MENG ; Shujun WANG ; Rui YANG
International Journal of Traditional Chinese Medicine 2023;45(6):730-735
Objective:To screen the optimal process of ambi-extracting of Xinyi Powder and inclusion of volatile oil.Methods:Single factor experiment was used to optimize the extraction process of Xinyi Powder by taking crushing particle size, extraction times, the amount of water added and extraction time as the investigation factors. L 9(3 4) orthogonal test was used to optimize the inclusion process of volatile oil in Xinyi Powder. Results:The optimal extraction process of ambi-extracting of Xinyi Powder was as follows: the slices were not crushed, 10 times the amount of water was added, and extracted for 3 hours; the best inclusion process of volatile oil as follows: β-cyclodextrin:water=1:25, β-cyclodextrin:volatile oil=6:1, inclusion temperature 35 ℃, inclusion time 3 hours.Conclusion:The ambi-extracting process and volatile oil inclusion process are simple, stable and feasible.
7.Diagnostic Stability in Psychiatric Patients From Hospital Admission to Discharge: A 10-Year Retrospective Study
Furu LIU ; Menghui GAO ; Qiongqiong WU ; Meiqi YAN ; Renrong WU ; Ping SHAO ; Jing HUANG
Psychiatry Investigation 2023;20(5):461-470
Objective:
This study aimed to evaluate the consistency or stability of mental disorders diagnosed in the psychiatry ward setting, investigate factors associated with consistency, and observe the disease distribution over the decade.
Methods:
A total of 20,359 psychiatric inpatients were included in this retrospective study from June 2011 to December 2020. Diagnoses from the first admission to discharge were evaluated to determine the diagnostic consistency during hospitalization. Readmissions were selected as the subgroup, whose first and last discharge diagnoses were compared to analyze the relatively long-term diagnostic stability. Demographic and clinical characteristics were collected to identify predictors of diagnostic discrepancy.
Results:
From 2011–2020, the hospitalization rate decreased from 42.7% to 20.7% for schizophrenia and grew from 13.3% to 23.8% for depression. Diagnoses were retained by 92.6% of patients at their first discharge diagnosis, ranging from 100% for disorders of psychological development to 16.3% for unspecified mental disorders. About 33.9% of diagnostic conversions were to bipolar disorder in patients having inconsistent diagnoses. However, among rehospitalizations, the diagnostic stability notably dropped to 71.3%. For rehospitalizations, mood disorders and schizophrenia spectrum disorders were relatively stable diagnoses categories, with 72.6% to 76.7% of patients receiving the same diagnosis, although results of specified diagnoses within these categories ranged from 5.9% to 91.0%. Except for mood disorders and schizophrenia spectrum disorders, the diagnoses of all other categories were below 70%. Long lengths of hospitalization and old age were associated with short-term diagnosis alterations.
Conclusion
Longitudinal follow-up and integration of multiple aspects of information are essential for accurate diagnosis.
8.Research Progress of Animal Models of Stress Cardiomyopathy
Haosheng WU ; Hang SU ; Chao ZHU ; Wenhui WANG ; Shengbing WU ; Shuai CUI ; Meiqi ZHOU
Laboratory Animal and Comparative Medicine 2023;43(2):173-179
Stress cardiomyopathy (SC) is an acute cardiomyopathy caused by intense mental stimulation or physical stress. Currently, few interventions are effective in reducing mortality, improving prognosis, or preventing recurrence in acute or chronic stages of SC. Therefore, it is particularly important to establish a reliable and effective SC animal model to study the pathogenesis and prevention of SC. In this paper, the preparation methods and evaluation indexes of SC models at home and abroad were reviewed, including the operation details of catecholamine hormone injection method, binding method, binding combined with electroshock method, binding combined with dehydration method, vagus nerve electrical stimulation and other modeling methods, as well as evaluation indexes such as open field test, cardiac ultrasound, electrocardiogram and ELISA, striving to provide useful reference for model selection and establishment of SC research.
9.Construction of a cardiopulmonary rehabilitation specialist nurse practice base under the integration of Shenzhen and Hong Kong
Meiqi GU ; Lijuan WU ; Fangmei HUANG ; Wenjuan GUO ; Jiwei DU
Chinese Journal of Modern Nursing 2023;29(18):2427-2432
Objective:To summarize the construction experience of the cardiorespiratory rehabilitation specialist nurse practice base under the integration of Shenzhen and Hong Kong, so as to provide excellent practice bases for cardiorespiratory rehabilitation specialist nurses.Methods:This study constructed a training course system for practice bases, set up clinical practice courses, and improved the professional literacy and practical skills of cardiorespiratory rehabilitation specialty nurses through theoretical assessment, mind mapping, case reporting, and simulation assessment.Results:Cardiopulmonary rehabilitation specialist nurses all passed the operational assessment of the Nursing Committee of the Chinese Association of Rehabilitation Medicine and obtained completion certificates. The care report performance of cardiorespiratory rehabilitation specialist nurses improved compared to the training period, with a statistically significant difference ( P<0.001) . Conclusions:The standardized practice base training lays a solid foundation for cultivating excellent and high-quality cardiorespiratory rehabilitation specialist nurses, promoting the development of cardiorespiratory rehabilitation in China.
10.Mechanism of tanshinone ⅡA inhibiting myocardial remodeling by Galectin-3
Meiqi ZHANG ; Kang CHENG ; Limei YU ; Weihua WU ; Yakun WANG ; Yun CHEN
Chinese Critical Care Medicine 2022;34(6):640-645
Objective:To explore the effect of tanshinone ⅡA on myocardial remodeling in ischemia/reperfusion (I/R)-induced heart failure of rodent model.Methods:① In vivo, 30 SD rats were randomly divided into sham operation, heart failure and tanshinone ⅡA treatment group, with 10 rats in each group. The I/R model was established by ligating the left coronary artery until ST segment elevation for 30 minutes, then the ligation was removed for 2 hours as reperfusion. In the sham operation group, the rat chest was opened without artery ligation. Three days after model establishment, tanshinone ⅡA (10 mg/kg) were given intraperitoneal injected in tanshinone ⅡA group for 9 weeks. In the other two groups, normal saline was administrated in the same way. The behavioral manifestations of the rats in each group were observed; hemodynamic indexes were evaluated; Masson staining was performed to observe the degree of myocardial fibrosis; enzyme linked immunosorbent assay (ELISA) was used to detect the content of Galectin-3 in myocardial tissue; quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to detect the expressions of collagenⅢ, collagenⅠ, matrix metalloproteinase 2 (MMP-2) and tissue inhibitor of metalloproteinase (TIMP-1). ② In vitro, rats primary cardiac fibroblasts were extracted and isolated, and divided into blank control group, angiotensinⅡ group (7-10 mmol/L angiotensinⅡ) and angiotensinⅡ+ tanshinoneⅡA group (7-10 mmol/L angiotensinⅡ+ 5-10 mmol/L tanshinone ⅡA). At 24 hours and 48 hours of culture, the cell proliferation in each group was detected by methyl thiazolyl tetrazolium (MTT); the expressions of collagenⅢ, collagenⅠ, MMP-2 and TIMP-1 were detected by qRT-PCR; the content of Galectin-3 in cardiac fibroblasts was detected by ELSIA. Results:① In vivo, the rats' activity status, hair conformity and food intake were ranked from good to bad in order of sham operation group, tanshinone ⅡA group and heart failure model group. Compared with the sham-operated group, the heart rate (HR) of the rats in the heart failure model group was significantly decreased and the heart function was significantly impaired. The mRNA and protein expression of collagenⅠ, collagenⅢ, TIMP-1 and Galectin-3 content were significantly increased, while the mRNA and protein expression of MMP-2 were significantly decreased. Compared with the heart failure model group, rats in the tanshinone ⅡA group showed significantly higher HR and improved cardiac function, significantly lower mRNA expression of collagenⅠ and collagenⅢ, significantly lower mRNA and protein expression of TIMP-1 and Galectin-3, and significantly higher mRNA and protein expression of MMP-2, and the most obvious changes were in the 9th weeks of modeling [collagenⅠ mRNA (2 -ΔΔCt): 4.70±1.19 vs. 10.21±1.62, collagenⅢ mRNA (2 -ΔΔCt): 3.03±0.46 vs. 13.84±1.93, TIMP-1 mRNA (2 -ΔΔCt): 1.90±0.19 vs. 4.55±0.43, TIMP-1/GAPDH: 0.33±0.04 vs. 0.67±0.05, Galectin-3 (ng/L): 489.93±79.30 vs. 821.72±94.09, MMP-2 mRNA (2 -ΔΔCt): 0.37±0.07 vs. 0.03±0.01, MMP-2/GAPDH: 0.69±0.09 vs. 0.21±0.04, all P < 0.05]. Masson staining showed that myocardial tissue fibrosis was obvious in the heart failure group, and the degree of fibrosis in the tanshinoneⅡA group was reduced. ② In vitro, compared with the blank control group, the proliferation rate, collagenⅠ, collagen Ⅲ and TIMP-1 expression and Galectin-3 content of myocardial fibroblasts were significantly increased, and MMP-2 expression was significantly decreased in the angiotensin group at 24 h and 48 h of culture. Compared with the angiotensin group, the proliferation rate of cardiac fibroblasts and the expression of collagenⅠ, collagen Ⅲ and TIMP-1 and the content of Galectin-3 were significantly decreased, and the expression of MMP-2 mRNA was significantly increased in the angiotensin + tanshinone ⅡA group, and the most significant changes were at 48 hours of culture [proliferation rate: (57.0±3.7)% vs. (67.0±2.4)%, collagenⅠmRNA (2 -ΔΔCt): 551.43±67.10 vs. 871.48±12.25, collagenⅢ mRNA (2 -ΔΔCt): 233.76±18.73 vs. 385.51±31.35, TIMP-1 mRNA (2 -ΔΔCt): 238.69±17.37 vs. 351.84±26.17, Galectin-3 (ng/L): 283.76±28.73 vs. 415.51±31.35, MMP-2 mRNA (2 -ΔΔCt): 108.54±12.10 vs. 51.47±6.25, all P < 0.05]. Conclusion:Tanshinone ⅡA can improve cardiac function, inhibit myocardial fibrosis and improve myocardial remodeling in rats with I/R-induced heart failure.

Result Analysis
Print
Save
E-mail