1.A study of the dynamic evolution of macrophage infiltration behavior after acute carotid artery thrombosis
Shikai LI ; Jia LIANG ; Yanyan HE ; Qianhao DING ; Chenqing LI ; Yang LIU ; Yingpu FENG ; Wenli ZHAO ; Yumeng HUANG ; Lina SUO ; Tianxiao LI ; Yingkun HE
Chinese Journal of Cerebrovascular Diseases 2024;21(7):433-443
Objective To explore the changes in macrophage infiltration behavior during the dynamic evolution of thrombi following the formation of acute carotid artery thrombosis occlusion(ACTO).Methods 15 healthy male New Zealand rabbits were selected to establish an ACTO model by causing injury to the rabbit carotid artery using surgical sutures treated with ferric chloride.All rabbits were randomly divided into 5 groups according to the end-point time using the random number table method,namely 24-hour group,1 week group,4week group,8 week group,and 12week group postoperatively,with 3 rabbits in each group.At 24 hours post-operation,the ACTO model was examined by DS A.At 24 hours,1 week,4 weeks,8 weeks,and 12 weeks post-operation,samples were taken from the thrombotic arterial segment of the 3 rabbits in each group and embedded in paraffin.The thrombus samples were stained with hematoxylin-eosin(HE)and Martius scarlet blue(MSB)to analyze changes in thrombus morphology and composition(including red blood cells,fibrin and collagen fibers).Orbit Imaging Analysis software was used for semi-quantitative analysis of the thrombus composition components.Using immunohistochemistry to detect the distribution of MO and M2 macrophages in thrombi,aimed to summarize the dynamic evolution of thrombus morphology,composition,and macrophage infiltration behavior at different stages following ACTO occurrence.Results The 24-hour DSA results indicated that all experimental rabbits successfully established the ACTO model.(1)HE staining showed a continuous increase in thrombus size from 24 hours to 1 week.By 4 weeks,signs of thrombus dissolution appeared,and at 8 weeks,neovascularization was observed within the thrombus.By 12 weeks,signs of fibrosis were evident in the thrombus.(2)MSB staining revealed that during the acute phase of thrombus formation(within 24 hours after surgery),red blood cells were the predominant component initially,but after this period,fibrin and collagen fibers became the main components.(3)The detection results of MO macrophages showed that 24 hours after surgery,MO macrophages in the thrombus were not evenly distributed throughout the thrombus,but mainly gathered at the thrombus edge;at 1 week after surgery,the positive area percentage of MO macrophage in the thrombus increased compared with 24 hours after surgery(thrombus edge:[41.7±27.0]%vs.[24.6±16.7]%,thrombus core:[35.7±19.6]%vs.[11.1±10.4]%,all P<0.001),and evenly distributed within the thrombus;at 4 weeks after surgery,MO macrophages in the thrombus decreased compared with 1 week after surgery(thrombosis edge:[10.7±6.1]%vs.[41.7±27.0]%,thrombus core:[12.1±8.5]%vs.[35.7±19.6]%,all P<0.001),the differences were statistically significant.At 4,8,and 12 weeks after surgery,MO macrophages within the thrombus did not change significantly with time(thrombus edge:[10.7±6.1]%,[8.0±7.7]%,and[8.9±5.3]%;thrombus core:[12.1±8.5]%,[9.5±4.2]%,and[15.7±11.0]%),and the differences were not statistically significant(all P>0.05).In addition,at 12 weeks after surgery,MO macrophages at the thrombus edge was less than the thrombus core([8.9+5.3]%vs.[15.7±11.0]%,P<0.01).The detection results of M2 macrophages showed that 24 hours after surgery,M2 macrophages in the thrombus were widely distributed throughout the thrombus;at 1 week after surgery,the positive area percentage of M2 macrophages in the thrombus increased compared with 24 hours after surgery(thrombus edge:[22.1±11.3]%vs.[11.4±8.7]%,P<0.001;thrombus core:[24.5±9.8]%vs.[7.6±6.0]%,P<0.001);at 4 weeks after surgery,M2 macrophage in the thrombus decreased compared with 1 week after surgery(thrombosis edge:[10.6±3.7]%vs.[22.1±11.3]%,P<0.001;thrombus core:[9.2±4.3]%vs.[24.5±9.8]%,P<0.001);at 8 weeks after surgery,M2 macrophages in the thrombus increased compared with 4 weeks after surgery([17.9±8.8]%vs.[9.2±4.3]%,P<0.001),and the differences were statistically significant.However,M2 macrophages in the thrombus did not change significantly from 8 weeks to 12 weeks after surgery(thrombus edge:[9.4±6.3]%vs.[8.5±5.3]%,P>0.05;thrombus core:[17.9±8.8]%vs.[14.4±10.0]%,P>0.05).In addition,at 8 and 12 weeks after surgery,M2 macrophages in the thrombus core was greater than the thrombus edge(8 weeks after surgery:[17.9±8.8]%vs.[9.4±6.3]%,P<0.001;12weeks after surgery:[14.4±10.0]%vs.[8.5±5.3]%,P<0.001).Conclusions This study successfully established an ACTO animal model and demonstrated for the first time the dynamic evolution of macrophages within 12 weeks post-thrombus formation.Macrophages may played a significant role in both thrombus formation and fibrinolysis,as well as in the promotion of thrombus dissolution and the formation of new blood vessels within the thrombus which may potentially promote the spontaneous reperfusion of the occluded vessels.The results of this study need further verification.
2.QL1604 plus paclitaxel-cisplatin/ carboplatin in patients with recurrent or metastatic cervical cancer:an open-label, single-arm, phase II trial
Cheng FANG ; Yun ZHOU ; Yanling FENG ; Liping HE ; Jinjin YU ; Yuzhi LI ; Mei FENG ; Mei PAN ; Lina ZHAO ; Dihong TANG ; Xiumin LI ; Buzhen TAN ; Ruifang AN ; Xiaohui ZHENG ; Meimei SI ; Baihui ZHANG ; Lingyan LI ; Xiaoyan KANG ; Qi ZHOU ; Jihong LIU
Journal of Gynecologic Oncology 2024;35(6):e77-
Objective:
QL1604 is a highly selective, humanized monoclonal antibody against programmed death protein 1. We assessed the efficacy and safety of QL1604 plus chemotherapy as first-line treatment in patients with advanced cervical cancer.
Methods:
This was a multicenter, open-label, single-arm, phase II study. Patients with advanced cervical cancer and not previously treated with systemic chemotherapy were enrolled to receive QL1604 plus paclitaxel and cisplatin/carboplatin on day 1 of each 21-day cycle for up to 6 cycles, followed by QL1604 maintenance treatment.
Results:
Forty-six patients were enrolled and the median follow-up duration was 16.5 months. An 84.8% of patients had recurrent disease and 13.0% had stage IVB disease. The objective response rate (ORR) per Response Evaluation Criteria in Advanced Solid Tumors (RECIST) v1.1 was 58.7% (27/46). The immune ORR per immune RECIST was 60.9% (28/46).The median duration of response was 9.6 months (95% confidence interval [CI]=5.5–not estimable). The median progression-free survival was 8.1 months (95% CI=5.7–14.0). Fortyfive (97.8%) patients experienced treatment-related adverse events (TRAEs). The most common grade≥3 TRAEs (>30%) were neutrophil count decrease (50.0%), anemia (32.6%), and white blood cell count decrease (30.4%).
Conclusion
QL1604 plus paclitaxel-cisplatin/carboplatin showed promising antitumor activity and manageable safety profile as first-line treatment in patients with advanced cervical cancer. Programmed cell death protein 1 inhibitor plus chemotherapy may be a potential treatment option for the patient population who have contraindications or can’t tolerate bevacizumab, which needs to be further verified in phase III confirmatory study.
3.Analysis of non-alcoholic fatty liver disease differences from metabolic dysfunction-associated fatty liver disease based on clinical features
Yunxiao LIU ; Feng GUO ; Lina NIU ; Bing ZHANG ; Jing DOU ; Qiang XU ; Zhonghui NING ; Xiaozhong WANG
Chinese Journal of Hepatology 2024;32(4):346-353
Objective:To explore the clinical features of fatty liver disease (FLD) from non-alcoholic fatty liver disease (NAFLD) to metabolic dysfunction-associated fatty liver disease (MASLD), so as to elucidate its clinical application value under three renames.Methods:Patients who were hospitalized in the Department of Hepatology, Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, from January 2020 to September 2023 and met the diagnosis of NAFLD, metabolic-associated fatty liver disease (MAFLD), or MASLD were selected as the research subjects. The clinical indicators differences among the three groups of patients were compared, mainly including general information (age, gender, body mass index, past history, etc.), serological indicators (liver and kidney function, blood lipids, blood sugar, coagulation function, etc.), non-invasive liver fibrosis indicators, fat attenuation parameters, etc. Measurement data were analyzed using ANOVA and the rank sum test, while count data were analyzed using the χ2 test. Results:NAFLD, MAFLD, and MASLD prevalence rates among 536 cases were 64.0%, 93.7%, and 100%, respectively. 318 cases (59.3%) met the three fatty liver names at the same time among them. Male population proportions in NAFLD, MAFLD, and MASLD were 30.9%, 55.8%, and 53.9%, respectively. The alcohol consumption history proportion was 0, 36.7%, and 36.0%, respectively. The smoking history proportion was 7.0%, 31.9%, and 30.6%, respectively. The body mass index was (27.66 ± 3.97), (28.33 ± 3.63), and (27.90 ± 3.89) kg/m 2, respectively. The γ-glutamyltransferase levels were 26.6 (18.0, 47.0) U/L, 31.0 (20.0, 53.0) U/L, and 30.8 (19.8, 30.8) U/L, respectively. The high-density lipoprotein cholesterol levels were 1.07 (0.90, 1.23) mmol/L, 1.02 (0.86, 1.19) mmol/L, and 1.03 (0.87,1.21) mmol/L, respectively. Sequentially measured uric acid was (322.98 ± 84.51) μmol/L, (346.57 ± 89.49) μmol/L, and (344.89 ±89.67) μmol/L, respectively. Sequentially measured creatinine was 69.6 (62.9, 79.0) μmol/L, 73.0 (65.0, 83.5) μmol/L, and 73.0 (65.0, 83.0) μmol/L, respectively. The sequential analysis of obesity proportion was 74.3%, 81.7%, and 76.5%, respectively, with statistically significant differences ( P<0.05). Conclusion:Compared with the NAFLD population, the MAFLD and MASLD populations were predominantly male, obese, and had a history of smoking and drinking. The levels of γ-glutamyltransferase, uric acid, and creatinine were slightly higher, while the levels of high-density lipoprotein cholesterol were lower. MASLD appeared in NAFLD and MAFLD on the basis of inheritance and progression, emphasizing once again the important role of metabolic factors in a fatty liver.
4.Speech Training Methods and Effects of Lateral Articulation in Preschool Patients with Functional Articulation Disorder
Huiyong LI ; Lina XU ; Feng LI ; Nan GAO
Journal of Audiology and Speech Pathology 2024;32(4):334-337
Objective To study the effect of phonetic training on lateral articulation in preschool patients with functional articulation disorders(FAD).Methods A total of 45 FAD patients from June 2022 to December 2022 were selected as the control group,and 45 FAD patients from January 2023 to March 2023 were selected as the ob-servation group.The patients in the observation group were given basic function training,tongue force point train-ing,correct ventilation training,computer speech lab(CSL)visual feedback training,family synchronization train-ing,family continuation training and other voice training measures.Forty-five patients in the control group did not receive speech training,and routine guidance was implemented.Speech assessment was carried out on patients in the observation group at the end of the speech training class and patients in the control group at the time of return visit,and the number of lateral articulation words between the two groups was compared.Results Within the group com-parison,after 10~50 hours of targeted language training,the number of words of lateral articulation in the observa-tion group decreased from 95.16±7.82 before training to 17.60±3.45,and the difference was statistically signifi-cant(t=70.871,P<0.01).In the control group,the number of words of lateral structure decreased from 94.29±8.50 at the time of visit to 82.96±8.43 at the time of return visit,and the difference was statistically significant(t=9.849,P<0.01).For comparison between groups,there was no statistical difference in the number of words of lateralized phonation between the two groups before voice training(t=0.504,P=0.616).The number of words of lateralized phonation in the observation group after training was significantly less than that in the control group after follow-up visit,and the difference was statistically significant(t=48.131,P<0.01).Conclusion The lateral artic-ulation of preschool FAD patients has a certain tendency of self-healing.Based on the mechanism of lateral articula-tion,targeted phonetic training for preschool FAD patients is an effective measure to correct the lateral articulation of FAD.
5.Research on equipment management of laminar flow room in hematology department based on safety intelligent warning system
Dan LIU ; Lina FENG ; Fan LI ; Aihua ZHANG
China Medical Equipment 2024;21(11):132-136
Objective:To construct a safety intelligent early warning system,and to explore its application effect in the management of medical equipment in laminar flow room of hematology department.Methods:The safety intelligent early warning system was constructed by using the browser and server(B/S)mode.The system was consisted of three layers:client layer,application server layer and database server layer,as well as four core modules:data acquisition,data transmission,data processing and data application.A total of 45 equipment in clinical use in the laminar flow room of the Department of Hematology,Tangdu Hospital,Air Force Medical University from November 2021 to October 2023 were selected.Routine management was implemented during the use period of the equipment from November 2021 to October 2022,and the safety intelligent early warning system management(hereinafter referred to as the intelligent management)was applied during the equipment use period from November 2022 to October 2023.The equipment safety risk evaluation index,the potential safety risk rate of the equipment sampled randomly and the average accuracy rate of the equipment use in 600 checks(300 times for each method)under the two management methods were compared.Results:The safety risk assessments of 45 equipment adopted the intelligent management method were poor,fair,good,and excellent with risk indices of 0.02±0.01,0.06±0.02,0.18±0.04 and 0.39±0.07,respectively,the poor,fair,and good risk indices were lower than those of routine management method,and the safety risk index assessed as excellent was higher than that of routine management method,the difference was statistically significant(t=19.092,12.457,6.751,15.809,P<0.05).Among the 137 cases of 45 equipment randomly sampled using intelligent management method,4,5 and 1 cases of mechanical injury,cross-infection and electric shock injury occurred,with the incidence rates of 2.92%,3.65%and 0.73%,respectively,which were lower than those of routine management methods,the difference was statistically significant(x2=9.336,16.286,17.328,P<0.05).The average accuracy rates(%)of the 45 equipment adopted the intelligent management method in terms of correct placement,correct connection sequence,correct parameter setting and organization and standard use of the equipment were 99.52±3.51,98.63±4.05,99.74±4.18 and 97.37±5.36,respectively,which were higher than those of the routine management method,the difference was statistically significant(Z=12.231,9.075,13.584,8.933,P<0.05).Conclusion:The application of safety intelligent warning system for the equipment management of laminar flow room in the department of hematology can effectively prevent potential safety risks of the equipment and improve the accuracy of equipment use.
6.Expert consensus on the workflow of digital aesthetic design in prosthodontics
Zhonghao LIU ; Feng LIU ; Jiang CHEN ; Cui HUANG ; Xianglong HAN ; Wenjie HU ; Chun XU ; Weicai LIU ; Lina NIU ; Chufan MA ; Yijiao ZHAO ; Ke ZHAO ; Ming ZHENG ; Yaming CHEN ; Qingfeng HUANG ; Yi MAN ; Mingming XU ; Xuliang DENG ; Ti ZHOU ; Xiaorui SHI
Journal of Practical Stomatology 2024;40(2):156-163
In the field of dental aesthetics,digital aesthetic design plays a crucial role in helping dentists to predict treatment outcomes vis-ually,as well as in enhancing the consistency of knowledge and understanding of aesthetic goals between dentists and patients.It serves as the foundation for achieving ideal aesthetic effects.However,there is no clear standard for this digital process currently in China and abroad.Many dentists lack of systematic understanding of how to carry out digital aesthetic design for treatment.To establish standardized processes for dental aesthetic design and to improve the homogeneity of treatment outcomes,Chinese Society of Digital Dental Industry(CSD-DI)convened domestic experts in related field to compile this consensus.This article elaborates on the key aspects of digital aesthetic data collection,integration steps,and the digital aesthetic design process.It also formulates a decision tree for dental aesthetics at macro level and outlines corresponding workflows for various clinical scenarios,serving as a reference for clinicians.
7.Research Progress on Traditional Chinese Medicine in Treating Viral Hepatitis: A Review
Xiaojie FENG ; Junjie YU ; Yingying SUI ; Lina WANG ; Fangang MENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(13):289-298
Viral hepatitis is an important cause of liver cirrhosis and liver cancer, which has become a major public health problem in the world. Traditional Chinese medicine has unique advantages in treating viral hepatitis, which can inhibit virus replication and enhance immunity. It can effectively prevent liver fibrosis and canceration, improving liver function and symptoms significantly with definite clinical curative effects, a high level of safety, and seldom drug resistance. In addition, it reduces the side effects of western medicine, achieving the effect of synergy and attenuation while reducing the recurrence rate of patients after drug withdrawal. Attention has been paid to the research on the treatment of viral hepatitis with traditional Chinese medicine, and great progress has been made in experimental research and clinical practice. In this paper, the research progress of traditional Chinese medicine in the treatment of viral hepatitis at home and abroad in recent five years was systematically reviewed. Modern research has confirmed that traditional Chinese medicine can play a role in the treatment of viral hepatitis by directly or indirectly inhibiting the virus, anti-inflammatory, anti-fibrosis, anti-oxidation, regulating immunity, regulating autophagy, and other signal pathways. In clinics, traditional Chinese medicine compound or combined with western medicine is often adopted to ameliorate the clinical symptoms of patients such as fatigue and loss of appetite, improve the immune mechanism of the body, enhance the antiviral ability, shorten the treatment course of patients and improve their quality of life. The research provides a reference for pharmacological research, clinical research, and new drug development for viral hepatitis.
8.Bacterial pathogen spectrum and drug resistance in respiratory intensive care unit in 2020- 2022
Juan LI ; Tu LYU ; Lina FENG ; Qianyu FENG ; Yun HUANG ; Congrong LI ; Xuan CAI
Journal of Public Health and Preventive Medicine 2024;35(6):89-92
Objective To understand the infectious pathogen characteristics and drug sensitivity of hospitalized patients in the respiratory intensive care unit (RICU) of Renmin Hospital of Wuhan University. Methods Bacterial culture samples sent to the RICU of our hospital from January 2020 to December 2022 were retrospectively analyzed. The bacterial types were identified by Bruker mass spectrometer, and the Phoenix 100 was used for drug sensitivity analysis. The antimicrobial susceptibility was analyzed by WHONET 5.6 software. Results A total of 1 157 strains of bacteria were isolated, including 878 strains of Gram-negative bacteria (75.89%) and 279 strains of Gram-positive bacteria (24.11%). The top five with the highest detection rate were Acinetobacter baumannii (25.50%), Pseudomonas aeruginosa (18.76%), Klebsiella pneumoniae (13.83%), Staphylococcus aureus (6.57%) and Escherichia coli (5.70%). Among them, Acinetobacter baumannii was extremely drug-resistant, only showing relatively high sensitivity to colistin, minocycline, and tigecycline. Staphylococcus aureus accounted for the highest proportion of Gram-positive bacteria (6.57%), with methicillin-resistant Staphylococcus (MRSA) showing a continuous increase. Conclusion In the past three years, Gram-negative bacteria have been the main pathogenic bacteria detected in the respiratory intensive care unit of our hospital. The main bacteria are Acinetobacter baumannii, Pseudomonas aeruginosa, and Klebsiella pneumoniae, which have a high resistance rate to various antibiotics. Therefore, clinical monitoring of resistant strains in RICU should be strengthened to facilitate rational use of antibiotics and improve antibacterial effect.
9.Relation between self-perceived burden and quality of life in liver transplant recipients:the effecting path of anxiety and depression
Yun GUO ; Lina ZHOU ; Feng ZHANG ; Yumei CHEN ; Zonghui BU ; Wenjin WAN ; Yu WANG
Sichuan Mental Health 2024;37(5):444-450
Background Self-perceived burden,anxiety and depression are among the most important factors affecting quality of life.At present,there is a lack of understanding on the research status and influencing factors of self-perceived burden in liver transplant recipients.Previous studies have shown that self-perceived burden,anxiety,depression and quality of life are correlated in pairs,but the effecting path among the three are not yet clear.Objective To explore the correlation of self-perceived burden and anxiety/depression with quality of life in liver transplant recipients,so as to provide guidance for psychological nursing intervention in clinical patients.Methods A total of 200 patients liver transplant recipients were enrolled from the liver transplantation inpatient and outpatient clinics of Jiangsu Province Hospital and Qinhuai Medical Area,General Hosptial of Eastern Theater Command of People's Liberation Army of China from March 2022 to February 2023.Patients were evaluated using Self-perceived Burden Scale(SPBS),Hospital Anxiety and Depression Scale(HADS)and the Chinese version of Post Liver Transplant Quality of Life Questionnaire(pLTQ).Spearman correlation analysis was used to examine the correlation among the scales.A structural equation model using Mplus 8.3 was utilized to testify the relationship among self-perceived burden,anxiety/depression and quality of life in liver transplant recipients.Bootstrap method was used to test the effecting pathway.Results There were statistically significant differences in SPBS scores of liver transplant recipients with different levels of education and fannual family income(H=9.656,18.796,P<0.05).There were statistically significant differences in HADS scores of liver transplant recipients with different numbers of somatic symptoms(H=9.859,P<0.05).There were statistically significant differences in the Chinese version of pLTQ scores of liver transplant recipients with different levels of education,postoperative survival time and numbers of somatic symptoms(H=6.892,8.023,16.099,P<0.05).The total and each dimension scores in SPBS of liver transplant recipients were positively correlated with the total score and anxiety/depression dimension scores in HADS(r=0.464~0.586,0.460~0.593,0.286~0.408,0.464~0.583,P<0.01)and negatively correlated with the total score and each dimension scores in the Chinese version of pLTQ(r=-0.572~-0.416,-0.599~-0.441,-0.365~-0.213,-0.559~-0.428,P<0.01).Structural equation model denoted that self-perceived burden negatively affected quality of life(β=-0.186,P<0.01).Anxiety/depression also negatively affected quality of life(β=-0.679,P<0.01).The self-perceived burden indirectly affected the quality of life of liver transplant recipients through anxiety and depression,with an effect value of-0.429,accounting for 69.76%of the total effect.Conclusion The quality of life in liver transplant recipients may be related to their self-perceived burden and anxiety/depression.Self-perceived burden may affect the quality of life of liver transplant patients through anxiety and depression.
10.Inhibition of triggering receptor expressed on myeloid cells-1(TREM-1)attenuates chronic intermittent hypoxia-induced atherosclerosis in mouse models
Hanqiao YU ; Chao LI ; Yubin YU ; Lina FENG ; Xiaosheng SHENG ; Xiaoxia YE ; Linyan WANG
Basic & Clinical Medicine 2024;44(3):368-373
Objective To investigate the role of triggering receptor expressed on myeloid cells-1(TREM-1)in ath-erosclerosis induced by chronic intermittent hypoxia(CIH).Methods ApoE-/-mice were randomly divided into blank group,model group and experimental group.The mice in the model group and the experimental group were kept in a hypoxic environment and fed with a high-fat diet.After 4 weeks of high-fat feeding,mice in the experi-mental group were intraperitoneally injected with TREM-1 inhibitor LR12(5 mg/kg)for 8 weeks.After 12 weeks of feeding,the level of serum total cholesterol(TC),low density lipoprotein(LDL),triglyceride(TG),tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β)and interleukin-10(IL-10)were detected.Histological analysis of aortic TREM-1 expression,plaque area and macrophage level were examined.Results Compared with blank group,the expression of TREM-1 in the aorta of the model group significantly increased(P<0.05).Com-pared with model group,the aortic plaque,the level of lipids in serum(TC,LDL,TG)and inflammatory factors(TNF-α,IL-1β,IL-10),aortic plaque,the expression of TREM-1 and infiltrating macrophages in aortic plaque of the experimental group were all significantly reduced(P<0.05).Conclusions TREM-1 is involved in the develop-ment of CIH-induced AS.Inhibition of TREM-1 can alleviate CIH-induced AS and its mechanism is related to the inhibition of macrophage activation.


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