1.Application of indocyanine green fluorescence imaging technology in biliary atresia
Hanlin LI ; Yuming HE ; Ziyi LUO ; Xiaogang XU
Journal of Clinical Hepatology 2025;41(6):1235-1240
Biliary atresia (BA) is characterized by progressive inflammation and fibrous obstruction of bile ducts, ultimately leading to cholestatic liver cirrhosis. Kasai surgery is the standard procedure for the treatment of BA, and early diagnosis is a key influencing factor for the prognosis of BA. Indocyanine green (ICG) is a near-infrared photosensitive dye that is efficiently and selectively absorbed by hepatocytes after intravenous injection, and it enters the intestine via bile and is excreted with the feces in the free form, with a favorable safety profile. In addition, ICG can emit fluorescence under near-infrared light, which can be captured by camera instruments and converted into visual images, and ICG fluorescence imaging technology can reflect the intraoperative situation in real time and significantly improve the success rate of the surgical procedure. This article reviews the advances in the application of ICG in early preoperative diagnosis, intraoperative imaging, and postoperative liver function assessment in recent years.
2.lncRNA ZFP36-AS1 regulates proliferation and immune escape of bladder cancer cell through miR-221
Yong LIU ; Xianlong LI ; Xiaogang CHEN ; Dengxiang YU ; Feng ZHAO ; Hao XU
International Journal of Surgery 2024;51(2):85-90
Objective:To investigate the expression of long non-coding RNA(lncRNA) ZFP36-AS1 in bladder cancer and the effect of ZFP36-AS1/miR-221 axis on the proliferation and immune escape of bladder cancer cells.Methods:The expression difference of ZFP36-AS1 in bladder cancer tissues was analyzed by cBioPortal database. Real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) was used to analyze the expression difference of ZFP36-AS1 in bladder cancer cell lines (J82, RT-4, MGH-U3, 5637). MGH-U3 cells were randomly divided into negative control (NC) group and ZFP36-AS1 group, which were transfected with pcDNA3.1-NC plasmid and pcDNA3.1-ZFP36-AS1 plasmid, respectively. Colony formation assay and flow cytometry were used to analyze the proliferation activity and cell cycle of MGH-U3 cells, respectively. T lymphocytes were co-cultured with MGH-U3 cells in each group, and the levels of interleukin-10 (IL-10), γ-interferon (IFN-γ), and interleukin-4 (IL-4) in the supernatants of each group were detected by enzyme-linked immunosorbent assay (ELISA). The dual-luciferase reporter gene assay verified the targeting relationship between ZFP36-AS1 and miR-221. The effect of ZFP36-AS1 on the expression of miR-221 in MGH-U3 cells was detected by RT-qPCR. Western blotting was used to detect the effect of ZFP36-AS1/miR-221 axis on the protein expression of CDK3, Cyclin C, CDK5, Cyclin D1 and Cyclin D3 in MGH-U3 cells.Results:Compared with normal bladder tissue, ZFP36-AS1 was abnormally low-expressed in bladder cancer tissue ( P<0.01). Compared with SV-HUC-1 cells, ZFP36-AS1 was abnormally low-expressed in bladder cancer cell lines (J82, RT-4, MGH-U3, 5637) ( P<0.01), and the expression was lowest in MGH-U3 cells ( P<0.01). The number of MGH-U3 cell colonies formed in the NC group and the ZFP36-AS1 group were (220.80±34.65) and (77.84±19.11), respectively, and the number of MGH-U3 cell colonies formed in the ZFP36-AS1 group was significantly down-regulated, the difference was statistically significant ( P<0.01). The proportions of G 0/G 1 phase cells in NC group and ZFP36-AS1 group were (48.04±2.89)% and (72.89±3.46)%, respectively, and the proportion of S phase cells were (35.38±2.98)% and (20.62±2.56)%, respectively. The proportion of G 2/M stage cells was (16.59±1.46)% and (6.48±1.50)%, respectively. The proportion of cells in G 0/G 1 phase were up-regulated in ZFP36-AS1 group ( P<0.01), and the proportion of cells in S phase and G 2/M phase were both down-regulated ( P<0.01). Compared with the NC group, the levels of IL-4 and IFN-γ in the ZFP36-AS1 group were significantly up-regulated ( P<0.01), and the level of IL-10 was significantly down-regulated ( P<0.01). ZFP36-AS1 can target miR-221 ( P<0.01). The relative expression of miR-221 in the NC group and the ZFP36-AS1 group was 6.84±1.35 and 1.00±0.21, respectively. Compared with the NC group, overexpression of ZFP36-AS1 could significantly inhibit the expression of miR-221 ( P<0.01). Compared with the NC group, the expressions of CDK3, Cyclin C, CDK5, Cyclin D1, and Cyclin D3 in the ZFP36-AS1 group were significantly decreased. Conclusion:ZFP36-AS1 is abnormally low-expressed in bladder cancer, and it reduces the proliferation activity of bladder cancer cells and inhibits their immune escape by inhibiting the expression of miR-221.
3.Hemodynamics and arrhythmia disorder caused by lithium poisoning:A case report
Yujue WANG ; Lijun OUYANG ; Xiaoqian MA ; Danyan XU ; Xiaogang CHEN ; Ying HE
Journal of Central South University(Medical Sciences) 2024;49(1):153-158
Bipolar affective disorder refers to a category of mood disorders characterized clinically by the presence of both manic or hypomanic episodes and depressive episodes.Lithium stands out as the primary pharmacological intervention for managing bipolar affective disorder.However,its therapeutic dosage closely approaches toxic levels.Toxic symptoms appear when the blood lithium concentration surpasses 1.4 mmol/L,typically giving rise to gastrointestinal and central nervous system reactions.Cardiac toxicity is rare but serious in cases of lithium poisoning.The study reports a case of a patient with bipolar affective disorder who reached a blood lithium concentration of 6.08 mmol/L after the patient took lithium carbonate sustained-release tablets beyond the prescribed dosage daily and concurrently using other mood stabilizers.This resulted in symptoms such as arrhythmia,shock,impaired consciousness,and coarse tremors.Following symptomatic supportive treatment,including blood dialysis,the patient's physical symptoms gradually improved.It is necessary for clinicians to strengthen the prevention and recognition of lithium poisoning.
4.Effect of group counseling integrating tea drinking on mental health improvement of college students
DENG Xuyang, LIN Qixiu, ZHU Siyu, LIU Xiaogang, XU Liuqing, HE Jing,WANG Zhilin
Chinese Journal of School Health 2024;45(6):826-830
Objective:
To explore the intervention effect of group counseling integrating teadrinking on depression, social avoidance and distress, coping styles and selfesteem among college students, so as to provide references for promoting the psychological health of students.
Methods:
From March to June 2021, a convenience sampling method was used to recruit 46 college students from a university in Nanjing for intervention project. There were 23 students in intervention group and control group, respectively. The intervention was conducted for 2.5 hours per week across a 6 week period. The intervention group received two sessions of group counseling that incorporated teadrinking experience, and the sessions involved tea knowledge explanation, observation and learning, embodied experience, emotional expression, interpersonal assistance and emotional support, cultural customs and life integration. After the intervention was completed, the control group received onetime group counseling that integrated teadrinking. The Wilcoxon difference test and Mann-Whitney U test were performed to compare the scores of each scale within and between the groups, and the χ2 test was used to compare the detection rates.
Results:
There were no statistically significant differences in the scores of positive coping, negative coping, selfesteem, social avoidance and distress between the intervention group and the control group (Z=-1.20, -0.33, -0.35, 1.31,P>0.05). There were statistically significant differences in positive coping styles, selfesteem, social avoidance and distress between the intervention group and the control group after the intervention(27.70±5.60,22.05±4.30;30.52±3.63,28.27±4.06;7.43±7.38,13.64±6.79) (Z=-3.31, -2.10, 3.22, P<0.05). The intervention group showed statistically significant differences in social avoidance and distress scores before and after the intervention(11.96±7.47,7.43±7.38) (Z=-2.88), and the depression detection rate decreased(60.9%,30.4%) (χ2=4.29) (P<0.05). There were no statistically significant differences in positive coping, negative coping, selfesteem, social avoidance and distress scores, and depression detection rate between the control group before and after the intervention (Z/χ2=-0.28, -0.42, -1.24, -1.25;1.39, P>0.05). The followup results 1year later showed that there was a statistically significant difference in social avoidance and distress(6.57±6.21,14.16±9.22), and in the detection rates of depression(21.7%,52.2%) between the intervention group and the control group (Z/χ2=2.70,4.57,P<0.05).
Conclusions
Group counseling integrating teadrinking could improve interpersonal relationships, emotional states, selfesteem levels and coping strategies among college students. Group psychological counseling that incorporates teadrinking can be adopted to improve the mental health status of college students.
5.Application effect of pulmonary electric impedance tomography-guided positive end-expiratory pressure on mechanical ventilation in patients with traumatic brain injury complicated with acute respiratory distress syndrome
Lanjuan XU ; Hui ZHENG ; Pengju LIU ; Xiangman LIU ; Xiaogang LIU ; Jing LIU ; Liqing LI ; Chengjian LI
Chinese Journal of Trauma 2024;40(5):397-404
Objective:To compare the application effects of electric impedance tomography (EIT)-guided positive end-expiratory pressure conventional PEEP and PEEP-fraction of inspired oxygen (FiO 2) table-guided PEEP in the mechanical ventilation of patients with traumatic brain injury (TBI) complicated with acute respiratory distress syndrome (ARDS). Methods:A retrospective cohort study was conducted on the clinical data of 80 TBI patients complicated with ARDS admitted to Zhengzhou Central Hospital Affiliated to Zhengzhou University from July 2020 to December 2022, including 42 males and 38 females, aged 29-59 years [(42.4±7.8)years]. The Glasgow coma scale (GCS) scores were 3-12 points [(7.7±2.2)points]. According to ARDS classification, 33 were mild, 26 moderate and 21 severe. All the patients were treated with mechanical ventilation according to lung protective ventilation strategy, including 42 patients treated with EIT-guided PEEP (EIT group) and 38 treated with conventional PEEP-FiO 2 table-guided PEEP (conventional group). At 12 hours, 1, 3 and 5 days after ventilation, the optimal PEEP, respiratory mechanics [driving pressure (ΔP), static compliance (C St), mechanical power (MP)], pulmonary gas exchange [arterial blood pH value, arterial partial pressure of carbon dioxide (PaCO 2), oxygenation index (P/F)], ventilation distribution [heterogeneity index (GI), regions of interest (ROI)1-4], hemodynamics [heart rate (HR), central venous pressure (CVP), mean arterial pressure (MAP)], cerebral perfusion status [intracranial pressure (ICP), regional cerebral oxygen saturation (rScO 2) grading], and treatment outcomes (mechanical ventilation duration, incidence of ventilator-induced lung injury (VILI), length of ICU stay, 6-month survival rate) separately at their optimal PEEP were compared between the two groups. Results:All the patients were followed up for 6 months. The optimal PEEP of the EIT group was (7.4±1.0)cm, (8.2±1.2)cm, (9.8±0.8)cm and (8.4±0.7)cm respectively at 12 hours, 1, 3 and 5 days after mechanical ventilation, which were higher than (7.0±1.0)cm, (7.6±1.0)cm, (9.0±0.6)cm and (7.2±0.5)cm of the conventional group ( P<0.05 or 0.01). At their optimal PEEP separately, at 12 hours, 1, 3 and 5 days after treatment, the ΔP of the EIT group was (7.1±1.3)cmH 2O, (7.7±1.3)cmH 2O, (9.5±1.1)cmH 2O and (6.1±1.3)cmH 2O respectively, which were all lower than (8.9±1.3)cmH 2O, (10.5±1.3)cmH 2O, (11.2±1.2)cmH 2O and (8.7±1.2)cmH 2O of the conventional group respectively ( P<0.05 or 0.01); the C St of the EIT group was (51.5±4.2)ml/cmH 2O, (52.9±4.6)ml/cmH 2O, (55.1±4.3)ml/cmH 2O and (57.5±3.6)ml/cmH 2O, which were all higher than (46.8±3.9)ml/cmH 2O, (47.6±4.4)ml/cmH 2O, (49.9±4.3)ml/cmH 2O and (53.3±3.6)ml/cmH 2O of the conventional group respectively ( P<0.05); the MP of the EIT group was (7.9±1.8)J/min, (8.8±1.3)J/min, (10.6±1.3)J/min and (7.8±0.9)J/min, which were lower than (8.6±1.5)J/min, (9.5±1.0)J/min, (12.2±1.8)J/min and (8.6±0.9)J/min of the conventional group respectively ( P<0.05 or 0.01); the P/F of the EIT group was (207.1±7.1)mmHg, (213.1±6.9)mmHg, (239.3±13.1)mmHg and (255.5±11.8)mmHg, which were all higher than (179.6±7.2)mmHg, (187.8±9.6)mmHg, (212.8±9.6)mmHg and (228.1±12.3)mmHg of the conventional group respectively ( P<0.05 or 0.01); the GI of the EIT group were 0.381±0.013, 0.387±0.012, 0.392±0.010 and 0.395±0.010, lower than 0.403±0.005, 0.406±0.005, 0.409±0.005 and 0.411±0.004 of traditional group respectively ( P<0.01); there were no significant differences in the arterial blood pH value, PaCO 2, ROI1-4, HR, CVP, MAP, ICP, or rScO 2 grading between the two groups (P>0.05). The ventilation duration of the EIT group was (78.5±9.0)hours, which was shorter than (83.1±7.4)hours of the conventional group ( P<0.05). The incidence of VILI was 0.0% (0/42) in the EIT group, which was lower than 7.8% (3/38) in the conventional group ( P<0.05). There were no significant differences in the ICU stay or 6-month survival rate between the two groups ( P>0.05). Conclusions:In mechanical ventilation treatment of TBI complicated with ARDS, the optimal PEEP guided by EIT was higher than that guided by PEEP-FiO 2 table. At this optimal PEEP, the respiratory mechanics and oxygen supply of the patients can be improved more effectively, making regional lung ventilation more uniform, reducing the mechanical ventilation time and decreasing the incidence of VILI without affecting their hemodynamics and brain perfusion.
6.Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients (version 2024)
Yao LU ; Yang LI ; Leiying ZHANG ; Hao TANG ; Huidan JING ; Yaoli WANG ; Xiangzhi JIA ; Li BA ; Maohong BIAN ; Dan CAI ; Hui CAI ; Xiaohong CAI ; Zhanshan ZHA ; Bingyu CHEN ; Daqing CHEN ; Feng CHEN ; Guoan CHEN ; Haiming CHEN ; Jing CHEN ; Min CHEN ; Qing CHEN ; Shu CHEN ; Xi CHEN ; Jinfeng CHENG ; Xiaoling CHU ; Hongwang CUI ; Xin CUI ; Zhen DA ; Ying DAI ; Surong DENG ; Weiqun DONG ; Weimin FAN ; Ke FENG ; Danhui FU ; Yongshui FU ; Qi FU ; Xuemei FU ; Jia GAN ; Xinyu GAN ; Wei GAO ; Huaizheng GONG ; Rong GUI ; Geng GUO ; Ning HAN ; Yiwen HAO ; Wubing HE ; Qiang HONG ; Ruiqin HOU ; Wei HOU ; Jie HU ; Peiyang HU ; Xi HU ; Xiaoyu HU ; Guangbin HUANG ; Jie HUANG ; Xiangyan HUANG ; Yuanshuai HUANG ; Shouyong HUN ; Xuebing JIANG ; Ping JIN ; Dong LAI ; Aiping LE ; Hongmei LI ; Bijuan LI ; Cuiying LI ; Daihong LI ; Haihong LI ; He LI ; Hui LI ; Jianping LI ; Ning LI ; Xiying LI ; Xiangmin LI ; Xiaofei LI ; Xiaojuan LI ; Zhiqiang LI ; Zhongjun LI ; Zunyan LI ; Huaqin LIANG ; Xiaohua LIANG ; Dongfa LIAO ; Qun LIAO ; Yan LIAO ; Jiajin LIN ; Chunxia LIU ; Fenghua LIU ; Peixian LIU ; Tiemei LIU ; Xiaoxin LIU ; Zhiwei LIU ; Zhongdi LIU ; Hua LU ; Jianfeng LUAN ; Jianjun LUO ; Qun LUO ; Dingfeng LYU ; Qi LYU ; Xianping LYU ; Aijun MA ; Liqiang MA ; Shuxuan MA ; Xainjun MA ; Xiaogang MA ; Xiaoli MA ; Guoqing MAO ; Shijie MU ; Shaolin NIE ; Shujuan OUYANG ; Xilin OUYANG ; Chunqiu PAN ; Jian PAN ; Xiaohua PAN ; Lei PENG ; Tao PENG ; Baohua QIAN ; Shu QIAO ; Li QIN ; Ying REN ; Zhaoqi REN ; Ruiming RONG ; Changshan SU ; Mingwei SUN ; Wenwu SUN ; Zhenwei SUN ; Haiping TANG ; Xiaofeng TANG ; Changjiu TANG ; Cuihua TAO ; Zhibin TIAN ; Juan WANG ; Baoyan WANG ; Chunyan WANG ; Gefei WANG ; Haiyan WANG ; Hongjie WANG ; Peng WANG ; Pengli WANG ; Qiushi WANG ; Xiaoning WANG ; Xinhua WANG ; Xuefeng WANG ; Yong WANG ; Yongjun WANG ; Yuanjie WANG ; Zhihua WANG ; Shaojun WEI ; Yaming WEI ; Jianbo WEN ; Jun WEN ; Jiang WU ; Jufeng WU ; Aijun XIA ; Fei XIA ; Rong XIA ; Jue XIE ; Yanchao XING ; Yan XIONG ; Feng XU ; Yongzhu XU ; Yongan XU ; Yonghe YAN ; Beizhan YAN ; Jiang YANG ; Jiangcun YANG ; Jun YANG ; Xinwen YANG ; Yongyi YANG ; Chunyan YAO ; Mingliang YE ; Changlin YIN ; Ming YIN ; Wen YIN ; Lianling YU ; Shuhong YU ; Zebo YU ; Yigang YU ; Anyong YU ; Hong YUAN ; Yi YUAN ; Chan ZHANG ; Jinjun ZHANG ; Jun ZHANG ; Kai ZHANG ; Leibing ZHANG ; Quan ZHANG ; Rongjiang ZHANG ; Sanming ZHANG ; Shengji ZHANG ; Shuo ZHANG ; Wei ZHANG ; Weidong ZHANG ; Xi ZHANG ; Xingwen ZHANG ; Guixi ZHANG ; Xiaojun ZHANG ; Guoqing ZHAO ; Jianpeng ZHAO ; Shuming ZHAO ; Beibei ZHENG ; Shangen ZHENG ; Huayou ZHOU ; Jicheng ZHOU ; Lihong ZHOU ; Mou ZHOU ; Xiaoyu ZHOU ; Xuelian ZHOU ; Yuan ZHOU ; Zheng ZHOU ; Zuhuang ZHOU ; Haiyan ZHU ; Peiyuan ZHU ; Changju ZHU ; Lili ZHU ; Zhengguo WANG ; Jianxin JIANG ; Deqing WANG ; Jiongcai LAN ; Quanli WANG ; Yang YU ; Lianyang ZHANG ; Aiqing WEN
Chinese Journal of Trauma 2024;40(10):865-881
Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.
7.Exploration of Basement Membrane-related Markersand Prediction of Therapeutic Drugs in Idiopathic Pulmonary Fibrosis
Yifeng XU ; Shiwen KE ; Hang XIAO ; Wenqiang ZHANG ; Shaobin XIONG ; Xiaogang XU ; Yu WANG ; Liangji LIU
Herald of Medicine 2024;43(8):1338-1346
Objective To explore basement membrane markers and potential drugs for treatment in idiopathic pulmona-ry fibrosis(IPF).Methods IPF-related datasets were downloaded from the Gene Expression Omnibus(GEO)database,processed to construct basement membrane gene expression matrices associated with IPF,and screened for differential basement membrane genes(DEBMs);DEBMs were enriched for function and pathways,and machine learning algorithms were used to ob-tain candidate signature genes,receiver operating characteristic(ROC)curves were used to identify signature genes and con-struct a nomogram.We performed ssGSEA analysis to explore the correlation between signature genes and immune cells and their functions and predicted the corresponding miRNAs and therapeutic drugs by signature genes.Results A total of 56 DEBMs were extracted;enrichment analysis showed that DEBMs were mainly enriched in"extracellular matrix tissue","extracellular structural tissue",etc.,and were closely related to"ECM-receptor interaction"and"local adhesion spot"pathways.The ma-chine learning has identified six candidate signature genes(TIMP3,P3H2,ITGA7,ITGA4,ADAMTS2,COL8A2),all of which meet the requirements of the signature genes by the ROC curve test,and the nomogram diagnostic value was outstanding(AUC=0.991 523);B cells and Macrophages in IPF were significantly different from the normal group.Finally,miRNAs were predicted to be dominated by miR-4305,miR-3684,progesterone,and tert-butyl hydroperoxide as therapeutic agents with strong relevance to IPF.Conclusion Signature genes and predictive miRNAs may serve as novel markers for IPF diagnosis,and pre-dictive drugs may be a potential source of drugs for treating IPF.
8.High level quinolone resistance and the mechanisms of resistance in carbapenem-resistant Klebsiella pneumoniae
Aimaiti ALIMIRE ; Zhewei SUN ; Qingqing XU ; Xiaogang XU ; Minggui WANG
Chinese Journal of Infection and Chemotherapy 2024;24(3):326-331
Objective To examine the quinolone resistance and mechanisms of resistance,including prevalence of transferable mechanisms of quinolone resistance(TMQR)genes in carbapenem-resistant Klebsiella pneumoniae(CRKP).Methods Antimicrobial susceptibility was tested for CRKP isolated from 7 hospitals in China during 2019 by broth microdilution method.Genome sequencing analysis was performed on Illumina HiseqX sequencing platform.The virulence genes,multilocus sequence typing(MLST),chromosome quinolone resistance-determining region(QRDR)variation,and prevalence of TMQR genes in CRKP were analyzed.Results Overall,98.4%and 99.2%of the 481 CRKP strains were non-susceptible to levofloxacin and ciprofloxacin,respectively.ST11(77.8%)and ST15(15.8%)were the dominant clones.Among the 303 CRKP strains carrying virulence gene(CV-CRKP),ST11 type and ST15 type strains accounted for 92.1%and 5.0%,respectively,while ST11 and ST15 type strains accounted for 53.4%and 34.3%in the 178 CRKP strains without the virulence gene(non-CV-CRKP).All of the ST11 and ST 15 type strains were resistant to quinolones associated with gyrA and parC mutation.All of the quinolone-sensitive strains were not ST11 type or not ST15 type.TMQR analysis showed that qnrS1(61.1%,294 strains),qnrB4(10.0%,48 strains)and aac(6)-Ib-cr(18.7%,90 strains)were most prevalent in CRKPs,while qnrB1(4 strains),qnrB2(2 strains),qnrD1(2 strains)and qnrB6(1 strain)were infrequently identified in CRKPs.Specifically,qnrB4 was mainly identified in high-level levofloxacin-resistant strains(MIC≥8 mg/L),while aac(6)-Ib-cr was found mainly in ciprofloxacin-resistant strains(MIC>8 mg/L).Conclusions Clinical CRKPs were highly resistant to quinolone.The rate of QRDR variation were high in quinolone resistant CRKP strains,with high TMQR gene carriage.
9.Role of oxidative stress and immune infiltration in idiopathic pulmonary fibrosis and study of Chinese medicine for prevention and treatment
Yifeng XU ; Shiwen KE ; Keke LI ; Zhaoqi YAN ; Yueqi XU ; Xiaogang XU ; Yu WANG ; Liangji LIU
Chinese Journal of Immunology 2024;40(10):2108-2115,中插5
Objective:To explore the role and relationship between oxidative stress and immune infiltration in idiopathic pul-monary fibrosis(IPF),and to predict the relevant therapeutic herbal medicines and active ingredients.Methods:GSE10667 gene expression profiles were downloaded from GEO database to obtain differential expression genes,differential expression of oxidative stress genes(DEOSGs)were identified in combination with oxidative stress genes.GSEA was used to evaluate the pathways and biologi-cal processes in IPF,and GO,KEGG and PPI network analysis were performed on DEOSGs.Candidate central genes were derived from PPI results and CytoHubba,and GSE110147 was validated as an independent group to identify central genes;in addition,the immune microenvironment of samples was evaluated using CIBERSORTF,and correlation between central gene levels and relative proportion of immune cells was explored;finally,therapeutic herbal medicines and components were predicted by central genes,and mole-cular docking verification was carried out.Results:A total of 51 DEOSGs,four central genes(ICAM-1,APOE,MMP-1,TGF-β2)were obtained;DEOSGs were mainly related to oxidative stress,immune response,etc;four central gene levels were closely correlated with 8 relative proportions of immune cells;therapeutic herbal medicines included 4 flavors such as Huangqi and Chuanxiong,and the active ingredients included 8 kinds of β-carotene,etc,the molecular docking results were stable.Conclusion:Oxidative stress and immune firing are exist in IPF,and oxidative stress may be recognized by immune cells or directly activate immune cells.
10.Fucoidan sulfate from Sargassum fusiforme regulates the SARS-CoV-2 receptor AXL expression in human embryonic lung diploid fibroblast cells.
Xuqiang ZHOU ; Weihua JIN ; Di JIANG ; Yipeng XU ; Sanying WANG ; Xinna WU ; Yunchuang CHANG ; Huili SU ; Tianjun ZHU ; Xiaogang XU ; Genxiang MAO
Journal of Zhejiang University. Science. B 2023;24(11):1047-1052
新冠病毒感染疫情严重威胁着世界各国人民的生命健康。目前,对病毒感染的防治研究主要集中在抑制病毒与分子受体的结合上。AXL作为新发现的严重急性呼吸综合征冠状病毒2型(SARS-CoV-2)受体,在协助病毒感染人体呼吸系统中发挥着重要作用,是未来临床干预的潜在靶点。本研究对已发表的单细胞测序数据进行整理和分析,发现AXL在年轻人肺细胞中的表达水平明显高于老年人。人胚肺二倍体成纤维细胞(2BS)是衰老研究的公认细胞株。本文采用2BS细胞构建复制性细胞衰老模型,发现年轻细胞中AXL的蛋白水平明显高于衰老细胞,据此推测年轻人感染的风险可能更高,需要注意防护。我们发现一种羊栖菜褐藻多糖硫酸酯组分(SFW-3)可显著下调年轻2BS细胞中AXL的表达水平,表明SFW-3具有一定的抗SARS-CoV-2感染的研究价值,同时表明2BS细胞株也可作为潜在的SARS-CoV-2体外感染模型。
Humans
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SARS-CoV-2
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Sargassum/metabolism*
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Diploidy
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Sulfates/metabolism*
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COVID-19
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Polysaccharides/pharmacology*
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Lung


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