1.Progress of research on clinical treatment of renal tuberculosis
Xiaoshan LI ; Yuyang ZHANG ; Xiumei LI ; Tiantian HOU ; Panfeng SHANG
Chinese Journal of Nosocomiology 2025;35(15):2395-2400
Drug therapy and surgical treatment are the two primary methods for treating renal tuberculosis.With the increase in drug-resistant strains,some novel anti-tuberculosis drugs,such as Delamanid and Bedaquiline,are being developed and gradually applied in clinical practice.Surgical treatment is suitable for patients with poor re-sponses to drug therapy and those who develop complications.Surgical methods include nephrectomy and partial nephrectomy.As the goal of preserving renal function as much as possible becomes more important,minimally in-vasive treatments have been adopted,with significant contributions from percutaneous nephrostomy and ureteral stent placement.Additionally,immunotherapy has emerged as a new direction,with immunomodulators such as interferons and interleukins under investigation.This article discusses the status and research progress in the treat-ment of renal tuberculosis,aiming to provide a theoretical basis for future treatments.
2.Construction of stable BHK-21 cell lines overexpressing APN of different species and the susceptibility to different coronaviruses
Dan WANG ; Hengjie ZHANG ; Yuyang TIAN ; Xiaohan HOU ; Zeao CHEN ; Ying HU ; Wenchao ZHANG ; Jianle REN ; Ying WANG ; Yujun ZHAO ; Ding ZHANG ; Bo YANG ; Wenxia TIAN ; Sheng NIU
Chinese Journal of Veterinary Science 2025;45(10):2095-2101
This study aims to establish BHK-21 stable cell lines expressing APN from four species(human,pig,dog,and cat),the APN fragments were amplified from pEGFP-C1-APN plasmids of the four species stored in the laboratory to generate the recombinant plasmids pcDNA4.0-APN.Af-ter the recombinant plasmids were transfected into BHK-21 cells,the stable BHK-21 cell lines ex-pressing the APNs were selected by two rounds of limited dilution.The constructed BHK-21 cell lines were identified by indirect immunofluorescence assay(IFA),and their susceptibility to PD-CoV and TGEV was tested for these four cell lines.Virus infection experiments revealed that PD-CoV infected cells expressing human,pig,and dog APNs,while it did not infect cells expressing cat APN.Simultaneously,TGEV infected cells expressing pig,dog,and cat APNs,but did not infect cells expressing human APN.The results suggest that the risk of cross-species infection for different coronaviruses and the established cell line can be used effectively to evaluate the virus in-fection.The findings also revealed that PDCoV has the potential risk of cross-species infection of human and dog,and TGEV has the potential risk of cross-species infection of dog and cat.These results provide a basis for the prevention and control strategy of coronaviruses.
3.Global Burden of Liver Cirrhosis and the Attributable Risk Factors:An Analysis and Forecast Based on GBD 2021
Yuyang LIU ; Chengcen GUO ; Ruqi TANG ; Xiong MA ; Weilin HOU ; Qixia WANG
Chinese Journal of Gastroenterology 2025;30(3):129-138
Background:Liver cirrhosis is characterized by chronic inflammation,progressive fibrosis,and eventual liver dysfunction,and poses a major global health challenge.Aims:To assess the global burden of liver cirrhosis and its risk factors from 1990 to 2021.Methods:Using data extracted from the Global Burden of Diseases,Injuries,and Risk Factors Study(GBD)2021,the incidence,mortality,disability-adjusted life years(DALYs),and their age-standardized rates of liver cirrhosis were analyzed.Furthermore,a stratified analysis was conducted by sex,age,region,and etiology,with projections of the trends in the next 15 years.Results:Compared to 1990,the global incidence number of liver cirrhosis in 2021 was increased by 58.2%,the death number and DALYs rose by 39.5%and 27.9%,respectively.While the global age-standardized incidence rate(ASIR)showed a slight increase,the age-standardized death rate(ASDR)and DALY rate continued to decline.Both ASIR and ASDR exhibited negative correlations with the sociodemographic index(SDI).All age-standardized rates were higher in males than in females.Since 1990,the incidence rate increased in younger populations,while the mortality and DALY rates declined in most age groups.Non-alcoholic fatty liver disease(NAFLD)emerged as the leading cause of incidence,whereas chronic hepatitis B and C remained the primary contributors to deaths and DALYs.The incidence of NAFLD was prominent in high and high-middle SDI regions,while chronic hepatitis B was concentrated in low SDI regions.Projections to 2036 indicated a continuing rise in ASIR,and declines in ASDR and DALY rate.The incidence of chronic hepatitis B was projected to decrease markedly,whereas that of NAFLD was expected to continue increasing.Conclusions:Between 1990 and 2021,the global incidence of liver cirrhosis showed a modest increase;in contrast,both mortality and DALY rates demonstrated a steady decline.Burden of liver cirrhosis poses notable regional disparities.NAFLD dominates incidence in high-income regions,while viral hepatitis remains predominant in low-income areas,highlighting the need for region-specific prevention strategies.
4.Construction of stable BHK-21 cell lines overexpressing APN of different species and the susceptibility to different coronaviruses
Dan WANG ; Hengjie ZHANG ; Yuyang TIAN ; Xiaohan HOU ; Zeao CHEN ; Ying HU ; Wenchao ZHANG ; Jianle REN ; Ying WANG ; Yujun ZHAO ; Ding ZHANG ; Bo YANG ; Wenxia TIAN ; Sheng NIU
Chinese Journal of Veterinary Science 2025;45(10):2095-2101
This study aims to establish BHK-21 stable cell lines expressing APN from four species(human,pig,dog,and cat),the APN fragments were amplified from pEGFP-C1-APN plasmids of the four species stored in the laboratory to generate the recombinant plasmids pcDNA4.0-APN.Af-ter the recombinant plasmids were transfected into BHK-21 cells,the stable BHK-21 cell lines ex-pressing the APNs were selected by two rounds of limited dilution.The constructed BHK-21 cell lines were identified by indirect immunofluorescence assay(IFA),and their susceptibility to PD-CoV and TGEV was tested for these four cell lines.Virus infection experiments revealed that PD-CoV infected cells expressing human,pig,and dog APNs,while it did not infect cells expressing cat APN.Simultaneously,TGEV infected cells expressing pig,dog,and cat APNs,but did not infect cells expressing human APN.The results suggest that the risk of cross-species infection for different coronaviruses and the established cell line can be used effectively to evaluate the virus in-fection.The findings also revealed that PDCoV has the potential risk of cross-species infection of human and dog,and TGEV has the potential risk of cross-species infection of dog and cat.These results provide a basis for the prevention and control strategy of coronaviruses.
5.Global Burden of Liver Cirrhosis and the Attributable Risk Factors:An Analysis and Forecast Based on GBD 2021
Yuyang LIU ; Chengcen GUO ; Ruqi TANG ; Xiong MA ; Weilin HOU ; Qixia WANG
Chinese Journal of Gastroenterology 2025;30(3):129-138
Background:Liver cirrhosis is characterized by chronic inflammation,progressive fibrosis,and eventual liver dysfunction,and poses a major global health challenge.Aims:To assess the global burden of liver cirrhosis and its risk factors from 1990 to 2021.Methods:Using data extracted from the Global Burden of Diseases,Injuries,and Risk Factors Study(GBD)2021,the incidence,mortality,disability-adjusted life years(DALYs),and their age-standardized rates of liver cirrhosis were analyzed.Furthermore,a stratified analysis was conducted by sex,age,region,and etiology,with projections of the trends in the next 15 years.Results:Compared to 1990,the global incidence number of liver cirrhosis in 2021 was increased by 58.2%,the death number and DALYs rose by 39.5%and 27.9%,respectively.While the global age-standardized incidence rate(ASIR)showed a slight increase,the age-standardized death rate(ASDR)and DALY rate continued to decline.Both ASIR and ASDR exhibited negative correlations with the sociodemographic index(SDI).All age-standardized rates were higher in males than in females.Since 1990,the incidence rate increased in younger populations,while the mortality and DALY rates declined in most age groups.Non-alcoholic fatty liver disease(NAFLD)emerged as the leading cause of incidence,whereas chronic hepatitis B and C remained the primary contributors to deaths and DALYs.The incidence of NAFLD was prominent in high and high-middle SDI regions,while chronic hepatitis B was concentrated in low SDI regions.Projections to 2036 indicated a continuing rise in ASIR,and declines in ASDR and DALY rate.The incidence of chronic hepatitis B was projected to decrease markedly,whereas that of NAFLD was expected to continue increasing.Conclusions:Between 1990 and 2021,the global incidence of liver cirrhosis showed a modest increase;in contrast,both mortality and DALY rates demonstrated a steady decline.Burden of liver cirrhosis poses notable regional disparities.NAFLD dominates incidence in high-income regions,while viral hepatitis remains predominant in low-income areas,highlighting the need for region-specific prevention strategies.
6.Progress of research on clinical treatment of renal tuberculosis
Xiaoshan LI ; Yuyang ZHANG ; Xiumei LI ; Tiantian HOU ; Panfeng SHANG
Chinese Journal of Nosocomiology 2025;35(15):2395-2400
Drug therapy and surgical treatment are the two primary methods for treating renal tuberculosis.With the increase in drug-resistant strains,some novel anti-tuberculosis drugs,such as Delamanid and Bedaquiline,are being developed and gradually applied in clinical practice.Surgical treatment is suitable for patients with poor re-sponses to drug therapy and those who develop complications.Surgical methods include nephrectomy and partial nephrectomy.As the goal of preserving renal function as much as possible becomes more important,minimally in-vasive treatments have been adopted,with significant contributions from percutaneous nephrostomy and ureteral stent placement.Additionally,immunotherapy has emerged as a new direction,with immunomodulators such as interferons and interleukins under investigation.This article discusses the status and research progress in the treat-ment of renal tuberculosis,aiming to provide a theoretical basis for future treatments.
7.Tripartite motif-containing protein 59 inhibits inflammation and lung injury by regulating HIF-1α-mediated lactic acid secretion and IL-10 expression in macrophages
Yinan WANG ; Hui HUANG ; Xinyu CHAI ; Qiong WU ; Yuxi WANG ; Yuyang HOU ; Dongmei YAN
Chinese Journal of Microbiology and Immunology 2024;44(3):205-211
Objective:To investigate the effect of tripartite motif-containing protein 59 (TRIM59) on glucose metabolism in macrophages and its role in regulating hypoxia-inducible factor-1α (HIF-1α)/IL-10 axis in macrophages under inflammatory conditions.Methods:The differentially expressed genes between macrophages with high expression of TRIM59 and control cells transfected with empty TRIM59 plasmid were analyzed by GO and KEGG. The expression of HIF-1α by RAW264.7 macrophages with high expression of TRIM59 was detected at different time points after lipopolysaccharide (LPS) stimulation by RT-qPCR and Western blot. Bone marrow was isolated from TRIM59-cKO and TRIM59 flox/flox mice and induced to differentiate into bone marrow-derived macrophages (BMDMs). These BMDMs were stimulated with LPS and the supernatants of cell culture were collected at 3, 6, 12 and 24 h after stimulation to detect IL-10 level by ELISA. In addition, mouse models of cecal ligation and puncture (CLP) were established, and bronchoalveolar lavage fluid (BALF) samples were collected at the same time points to detect IL-10 level by ELISA. Histopathological changes in lung tissues were observed after HE staining. Results:There was a significant change in glucose metabolism-related genes in macrophages with high expression of TRIM59, and the content of lactic acid increased significantly. Compared with the control group, the expression of HIF-1α at mRNA level in BMDMs from TRIM59-cKO mice decreased after LPS stimulation ( P<0.05); the level of IL-10 increased at 3 h and 24 h in the TRIM59-cKO group, but there was no significant difference in IL-10 level at 6 h or 12 h between the two groups. In the TRIM59-cKO mouse model of CLP, the levels of IL-10 in the BALF samples increased with time, but decreased at 24 h. The level of IL-10 was higher in the TRIM59-cKO mouse model group than that in the control group at each time point ( P<0.05 or P<0.01). Conclusions:TRIM59 can inhibit inflammation and lung injury by decreasing HIF-1α-mediated lactate secretion and IL-10 expression in macrophages. This study provides a new idea for developing novel anti-sepsis drugs based on TRIM59.
9. Development of quantitative analysis methods of Rituximab and it's biosimilar in biological samples
Liping HOU ; Yuyang YAN ; Li LI ; Dongsheng OUYANG ; Liping HOU ; Yuyang YAN ; Li LI ; Jianbo YANG ; Dongsheng OUYANG ; Jianbo YANG ; Jianbo YANG ; Dongsheng OUYANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2021;26(1):98-104
Rituximab is the main monoclonal antibody for targeted therapy currently. With more rituximab biosimilars appearing and clinical evaluation need increasing, it is crucial to develop rapid and effective quantitative methods to determine the rituximab blood concentration in biological matrices for drug metabolism and pharmacokinetics (DMPK) analysis. This article reviewed the application of ligand binding method (LBA), liquid chromatography-tandem mass spectrometry (LC-MS/MS) and emerging quantitative technology to detect the blood concentration of Rituximab, which may provide valuable information for the analysts and testers when developing quantitative methods for rituximab and its biosimilars.
10.Galangin induces apoptosis of glioma cells through Wnt/β-Catenin signal pathway
Jianglei HOU ; Yuyang LIU ; Miaochun BAI ; Guangyun ZHENG ; Chen LIU ; Haoju ZHANG ; Fobao HUANG ; Ruifeng WANG ; Yiwu DAI ; Ruxiang XU
Chinese Journal of Neuromedicine 2017;16(7):657-664
Objective To investigate the effect of galangin on proliferation and apoptosis of glioma cells in vitro.Methods (1) The glioma cells U87 and U25 1were divided into blank control group,DMSO group,100,200,300 and 400 μmol/L galangin treatment groups.MTT was used to study the effects of drugs on the proliferation of U251 and U87 cells.(2) Hoechest staining was used to observe cell apoptosis in the presence of different concentrations of galangin (0,100 and 200 μmol/L).(3) Flow cytometry was employed to detect the apoptosis of U251 and U87 cells in the presence of different concentrations of galangin (1 00 and 200 μmol/L).(4) Western blotting was employed to detect the expressions of apoptosis-related protein 3-Catenin,B-cell lymphoma-2 (Bcl-2),Bcl-2 related protein gene (Bax),cleaved-caspase-3,cleaved-caspase-9 and poly (ADP-ribose) polymerase (PARP) in the presence of different concentrations of galangin.Results (1) The proliferation of U251 and U87 cells was obviously inhibited atter 100,200,300 and 400 μmol/L galangin treatments,and dose-effect relation was noted.The concentrations of galangin at half rate of inhibition (IC50) were 281,321,276 and 229 μmol/L in U251 cells,and 289.4,261.1,247.4 and 225.3 μ mol/L in the U87 cells after 100,200,300 and 400μmol/L galangin treatments for 24 h.(2) Under the action of galangin,corresponding increase in apoptosis rates of U251 and U87 cells was noted following the increase of galangin concentrations (0,100 and 200 μmol/L),with significant differences (P<0.05).(3) The detection of cell apoptosis by flow cytometry found similar changes.(4) Western blotting results indicated that galangin at the concentration of 0,100 and 200 μmol/L could significantly decrease the expressions of apoptosis-related protein 3-Catenin and Bcl-2,and increase the Bax,cleaved-caspase-3 and cleaved-caspase-9,and cleaved-PARP expressions;significant differences were noted between each two concentrations (P<0.05).Conclusion Galangin can inhibit proliferation of glioma cells U251 and U87,and induce mitochondrial pathway of apoptosis via Wnt/β-Catenin signaling.

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