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Chen H, Jiang X, Zhu F, Yang R, Yu X, Zhou X, Tang N. Characteristics of the oral and gastric microbiome in patients with early-stage intramucosal esophageal squamous cell carcinoma. BMC Microbiol 2024; 24:88. [PMID: 38491387 PMCID: PMC10941485 DOI: 10.1186/s12866-024-03233-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 02/23/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Oral microbiome dysbacteriosis has been reported to be associated with the pathogenesis of advanced esophageal cancer. However, few studies investigated the potential role of oral and gastric microbiota in early-stage intramucosal esophageal squamous carcinoma (EIESC). METHOD A total of 104 samples were collected from 31 patients with EIESC and 21 healthy controls. The compositions of oral and gastric microbiota were analyzed using 16 S rRNA V3-V4 amplicon sequencing. Linear discriminant analysis effect size (LEfSe) analysis was performed to assess taxonomic differences between groups. The correlation between oral microbiota and clinicopathological factors was evaluated using Spearman correlation analysis. Additionally, co-occurrence networks were established and random forest models were utilized to identify significant microbial biomarkers for distinguishing between the EIESC and control groups. RESULTS A total of 292 oral genera and 223 species were identified in both EIESC and healthy controls. Six oral genera were remarkably enriched in EIESC groups, including the genera Porphyromonas, Shigella, Subdoligranulum, Leptotrichia, Paludibacter, and Odoribacter. LEfSe analysis identified genera Porphyromonas and Leptotrichia with LDA scores > 3. In the random forest model, Porphyromonas endodontalis ranked the top microbial biomarker to differentiate EIESC from controls. The elimination rate of Porphyromonas endodontalis from the oral cavity to the stomach was also dramatically decreased in the EIESC group than controls. In the microbial co-occurrence network, Porphyromonas endodontalis was positively correlated with Prevotella tannerae and Prevotella intermedia and was negatively correlated with Veillonella dispar. CONCLUSION Our study potentially indicates that the dysbacteriosis of both the oral and gastric microbiome was associated with EIESC. Larger scale studies and experimental animal models are urgently needed to confirm the possible role of microbial dysbacteriosis in the pathogenesis of EIESC. (Chinese Clinical Trial Registry Center, ChiCTR2200063464, Registered 07 September 2022, https://www.chictr.org.cn/showproj.html?proj=178563).
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Affiliation(s)
- Han Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Xingzhou Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Fengyi Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Ruoyun Yang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Xin Yu
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Xiaoying Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, China.
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China.
| | - Nana Tang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, China.
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China.
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Tang N, Yang Y, Xie Y, Yang G, Wang Q, Li C, Liu Z, Huang JA. CD274 (PD-L1) negatively regulates M1 macrophage polarization in ALI/ARDS. Front Immunol 2024; 15:1344805. [PMID: 38440722 PMCID: PMC10909908 DOI: 10.3389/fimmu.2024.1344805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
Background Acute lung injury (ALI)/severe acute respiratory distress syndrome (ARDS) is a serious clinical syndrome characterized by a high mortality rate. The pathophysiological mechanisms underlying ALI/ARDS remain incompletely understood. Considering the crucial role of immune infiltration and macrophage polarization in the pathogenesis of ALI/ARDS, this study aims to identify key genes associated with both ALI/ARDS and M1 macrophage polarization, employing a combination of bioinformatics and experimental approaches. The findings could potentially reveal novel biomarkers for the diagnosis and management of ALI/ARDS. Methods Gene expression profiles relevant to ALI were retrieved from the GEO database to identify co-upregulated differentially expressed genes (DEGs). GO and KEGG analyses facilitated functional annotation and pathway elucidation. PPI networks were constructed to identify hub genes, and differences in immune cell infiltration were subsequently examined. The expression of hub genes in M1 versus M2 macrophages was evaluated using macrophage polarization datasets. The diagnostic utility of CD274 (PD-L1) for ARDS was assessed by receiver operating characteristic (ROC) analysis in a validation dataset. Experimental confirmation was conducted using two LPS-induced M1 macrophage models and an ALI mouse model. The role of CD274 (PD-L1) in M1 macrophage polarization and associated proinflammatory cytokine production was further investigated by siRNA-mediated silencing. Results A total of 99 co-upregulated DEGs were identified in two ALI-linked datasets. Enrichment analysis revealed that these DEGs were mainly involved in immune-inflammatory pathways. The following top 10 hub genes were identified from the PPI network: IL-6, IL-1β, CXCL10, CD274, CCL2, TLR2, CXCL1, CCL3, IFIT1, and IFIT3. Immune infiltration analysis revealed a significantly increased abundance of M1 and M2 macrophages in lung tissue from the ALI group compared to the control group. Subsequent analysis confirmed that CD274 (PD-L1), a key immunological checkpoint molecule, was highly expressed within M1 macrophages. ROC analysis validated CD274 (PD-L1) as a promising biomarker for the diagnosis of ARDS. Both in vitro and in vivo experiments supported the bioinformatics analysis and confirmed that the JAK-STAT3 pathway promotes CD274 (PD-L1) expression on M1 macrophages. Importantly, knockdown of CD274 (PD-L1) expression potentiated M1 macrophage polarization and enhanced proinflammatory cytokines production. Conclusion This study demonstrates a significant correlation between CD274 (PD-L1) and M1 macrophages in ALI/ARDS. CD274 (PD-L1) functions as a negative regulator of M1 polarization and the secretion of proinflammatory cytokines in macrophages. These findings suggest potential new targets for the diagnosis and treatment of ALI/ARDS.
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Affiliation(s)
- Nana Tang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Medical Intensive Care Unit, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yang Yang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Yifei Xie
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Guohui Yang
- Medical Intensive Care Unit, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Qin Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Chang Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Zeyi Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
| | - Jian-an Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Respiratory Diseases, Soochow University, Suzhou, China
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Chen J, Zhang Y, Guo Q, Ren T, Tang N, Chen H, Zhang H. Development and validation of a risk model to predict the progression of ulcerative colitis patients to acute severe disease within one year. Expert Rev Gastroenterol Hepatol 2023; 17:1341-1348. [PMID: 37935651 DOI: 10.1080/17474124.2023.2279737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND AND AIMS Acute severe ulcerative colitis (ASUC) is strongly associated with poor prognosis. We aimed to establish and validate a model predicting ASUC occurrence within 1 year after ulcerative colitis(UC) diagnosis. METHODS A cohort of UC patients diagnosed between 2018 and 2020 at Northern Jiangsu People's Hospital, who were followed up for one year, was used to develop a risk prediction model. An independent cohort from January to December 2021, monitored until December 2022 at the at the First Affiliated Hospital of Nanjing Medical University, was used for external validation. A multivariable logistic regression analysis was conducted to investigate the adjusted association between six risk factors and ASUC. Subsequently, a simplified model was developed by eliminating a relatively insignificant risk factor to create an easy-to-use index. RESULTS The prediction model incorporates five parameters: disease extent, endoscopic appearance, histopathology, baseline response medication, and relapse frequency. It generates a nomogram in the end. The discriminant ability (c-index) was separately calculated as 0.982 and 0.925 in the development and validation cohorts. CONCLUSIONS The risk prediction model for developing ASUC within one year demonstrated excellent reliability and validity, which could be a straightforward and clinically valuable tool for predicting ASUC occurrence within 1 year. CLINICAL TRIAL REGISTRATION ChiCTR2300071794.
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Affiliation(s)
- Jie Chen
- Department of Gastroenterology, The Yangzhou School of clinical Medicine of Nanjing Medical University, Yangzhou, People's Republic of China
- Department of Gastroenterology, Northern Jiangsu People's Hospital, Yangzhou, People's Republic of China
| | - Yue Zhang
- Department of Gastroenterology, Northern Jiangsu People's Hospital, Yangzhou, People's Republic of China
| | - Qiong Guo
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Tianqi Ren
- Department of Gastroenterology, Northern Jiangsu People's Hospital, Yangzhou, People's Republic of China
| | - Nana Tang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Han Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Hongjie Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
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Tang N, Wang L, Zhou WZ, Zhou XJ. [The trend of birth weight of full-term newborns and its association with parental reproductive age in Chongqing municipality from 2010 to 2022]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1794-1800. [PMID: 38008568 DOI: 10.3760/cma.j.cn112150-20230221-00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
To analyze the trend of abnormal birth weight of full-term newborns and its correlation with parental reproductive age in Chongqing municipality from 2010 to 2022. Based on the Chongqing Birth Certificate System, full-term newborns born from January 2010 to December 2022 were selected. Parental information and birth weight were abstracted from the system. The joinpoint regression model was used to assess the trend of incidence of low birth weight (LBW) and macrosomia in the offspring from 2010 to 2022. The logistic regression model was utilized to analyze the association between parental reproduction age and birth weight of newborns. The average birth weight of 3 155 542 newborns was (3 305.8±410.5) g. The joinpoint regression model showed a decreasing trend for the incidence of LBW from 2010 to 2016 (APC=-4.26%, P<0.05), and an increasing trend from 2020 to 2022 (APC=8.99%, P<0.05). The incidence of macrosomia exhibited a decreasing trend from 2015 to 2022 (APC=-3.37%, P<0.05). The logistic regression model showed that, compared to the group with parents aged 20-34 years, the risk of LBW increased in other age groups. The risk of macrosomia decreased when either parent was aged<20 years, and increased when both parents were aged≥20 years. In conclusion, from 2010 to 2022, the incidence of LBW in full-term offspring in Chongqing municipality decreased first and then increased, and the incidence of macrosomia increased first and then decreased. Both young and advanced parental age were associated with an increased risk of LBW in offspring, and advanced parental age was also associated with an increased risk of macrosomia in offspring. Attention should be paid to the effects of advanced maternal and paternal age on offspring birth weight. Further efforts to control childbearing at a young age were needed.
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Affiliation(s)
- N Tang
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
| | - L Wang
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
| | - W Z Zhou
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
| | - X J Zhou
- Chongqing Health Center for Women and Children/Women and Children's Hospital of Chongqing Medical University, Chongqing 404100, China
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Wang X, Li M, Peng L, Tang N. Corrigendum to "SOD2 promotes the expression of ABCC2 through lncRNA CLCA3p and improves the detoxification capability of liver cells" [Toxicol. Lett. 327 (2020) 9-18]. Toxicol Lett 2023; 388:64-65. [PMID: 37880067 DOI: 10.1016/j.toxlet.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Affiliation(s)
- X Wang
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - M Li
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - L Peng
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - N Tang
- Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China.
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Tang N, Zachmann RJ, Xie H, Zheng J, Breit B. Visible-light induced metal-free intramolecular reductive cyclisations of ketones with alkynes and allenes. Chem Commun (Camb) 2023; 59:2122-2125. [PMID: 36723349 DOI: 10.1039/d2cc06972e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A visible-light-induced, intramolecular, reductive cyclisation of ketones with an unsaturated hydrocarbon moiety was developed. In contrast to conventional protocols requiring resource precious or hazardous metal sources, this method enables facile access to ketyl radicals under metal-free and mild reaction conditions. By polarity-reversed, ketyl radical hydroalkoxylation of alkynes and allenes, a variety of five-membered (hetero-)cyclic products were generated in good yields with good to excellent stereoselectivities. The embedded homoallylic tertiary alcohol could be transformed into other useful functionalities, highlighting the synthetic utility of this reaction. This efficient and sustainable ketyl-alkyne/allene cross coupling also features broad functional group tolerance and scalability.
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Affiliation(s)
- Nana Tang
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, Freiburg im Breisgau 79104, Germany.
| | - Raphael J Zachmann
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, Freiburg im Breisgau 79104, Germany.
| | - Hui Xie
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, Freiburg im Breisgau 79104, Germany.
| | - Jun Zheng
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, Freiburg im Breisgau 79104, Germany.
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Chen H, Ou R, Tang N, Su W, Yang R, Yu X, Zhang G, Jiao J, Zhou X. Alternation of the gut microbiota in irritable bowel syndrome: an integrated analysis based on multicenter amplicon sequencing data. J Transl Med 2023; 21:117. [PMID: 36774467 PMCID: PMC9921069 DOI: 10.1186/s12967-023-03953-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/01/2023] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND Gut dysbacteriosis has been reported as one of the etiologies for irritable bowel syndrome (IBS). However, the association between gut microbiota and IBS is still inconclusive. METHOD A paired-sample study was designed by retrieving original multicenter 16 s-rRNA data of IBS patients and healthy controls from the GMrepo database. The propensity score matching (PSM) algorithm was applied to reduce confounding bias. The differential analysis of microbiota composition was performed at different taxonomic levels. The co-occurrence network was established. Subgroup analysis was performed to identify specific microbial compositions in different IBS subtypes. RESULTS A total of 1522 amplicon samples were initially enrolled. After PSM, 708 individuals (354 IBS and 354 healthy controls) were eligible for further analysis. A total of 1,160 genera were identified. We identified significantly changed taxa in IBS groups (IBS-enriched: the families Enterobacteriaceae, Moraxellaceae and Sphingobacteriaceae; the genera Streptococcus, Bacillus, Enterocloster, Sphingobacterium, Holdemania and Acinetobacter. IBS-depleted: the phyla Firmicutes, Euryarchaeota, Cyanobacteria, Acidobacteria and Lentisphaerae; the families Bifidobacteriaceae, Ruminococcaceae, Methanobacteriaceae and the other 25 families; the genera Faecalibacterium, Bifidobacterium and other 68 genera). The co-occurrence network identified three hub genera and six hub species (including Faecalibacterium prausnitzii) that may be involved in IBS pathophysiology. Strong positive interactions were identified among the Bifidobacterium longum, Bifidobacterium breve and Bifidobacterium adolescentis in the Bifidobacterium community. CONCLUSION This study provides quantitative analysis and visualization of the interaction between the gut microbiota and IBS. The identification of key species should be further validated to evaluate their causal relationships with the pathogenesis of IBS.
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Affiliation(s)
- Han Chen
- grid.412676.00000 0004 1799 0784Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029 People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Rong Ou
- grid.411634.50000 0004 0632 4559Department of Gastroenterology and Hepatology, Jinhu County People’s Hospital, Huaian, China
| | - Nana Tang
- grid.412676.00000 0004 1799 0784Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029 People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Wei Su
- grid.412676.00000 0004 1799 0784Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029 People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Ruoyun Yang
- grid.412676.00000 0004 1799 0784Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029 People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Xin Yu
- grid.412676.00000 0004 1799 0784Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029 People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Guoxin Zhang
- grid.412676.00000 0004 1799 0784Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029 People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Jianhua Jiao
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, People's Republic of China. .,The First Clinical Medical College, Nanjing Medical University, Nanjing, China.
| | - Xiaoying Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300# Guangzhou Road, Nanjing, 210029, People's Republic of China. .,The First Clinical Medical College, Nanjing Medical University, Nanjing, China.
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Cui X, Ye Z, Wang D, Yang Y, Jiao C, Ma J, Tang N, Zhang H. Aryl hydrocarbon receptor activation ameliorates experimental colitis by modulating the tolerogenic dendritic and regulatory T cell formation. Cell Biosci 2022; 12:46. [PMID: 35461286 PMCID: PMC9034494 DOI: 10.1186/s13578-022-00780-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 03/30/2022] [Indexed: 02/08/2023] Open
Abstract
Background Intestinal immune dysfunction is involved in the onset of Crohn’s disease (CD). Dendritic cells (DCs), antigen-presenting cells, play a key role in the maintenance of intestinal immune homeostasis. The aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor widely expressed in various immune cells, including DCs. Although AhR plays an important role in immune tolerance, its role in the DCs is unclear. The purpose of this study was to investigate whether the activation of AhR can induce tolerogenic DCs (tolDCs) and the differentiation of regulatory T (Treg) cells, as well as ameliorate experimental colitis. Results AhR activation in the DCs resulted in a lower expression of surface markers such as CD80, CD83, CD86, and pro-inflammatory cytokine production, and higher anti-inflammatory production (IL-1β, IL-23, and IL-12) compared to the control DCs. The surface dendrites in DCs were significantly reduced following AhR activation by 6-formylindolo [3,2-b]carbazole (FICZ). Such DCs with FICZ-mediated activation of AhR, namely tolDCs, promoted Treg cell differentiation. Adoptive transfer of tolDCs to a TNBS-induced colitis mouse model significantly alleviated the severity of inflammation by improving the colon length and decreasing the disease activity index (DAI) and histopathological score. Moreover, the transferred tolDCs decreased the frequency of Th17 cells and increased the frequency of Treg cells in the spleen and mesenteric lymph nodes (MLNs) in murine colitis models. Conclusions Activation of AhR in the DCs could induce tolDCs, and the transplantation of tolDCs may help in relieving intestinal inflammation and maintaining the Th17/Treg differentiation balance. Thus, our data suggest that AhR may be a potential therapeutic target for CD.
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Chen H, Tang N, Ye Q, Yu X, Yang R, Cheng H, Zhang G, Zhou X. Alternation of the gut microbiota in metabolically healthy obesity: An integrated multiomics analysis. Front Cell Infect Microbiol 2022; 12:1012028. [PMID: 36389176 PMCID: PMC9663839 DOI: 10.3389/fcimb.2022.1012028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/18/2022] [Indexed: 10/09/2023] Open
Abstract
BACKGROUND Although the gut microbiota may be involved in obesity onset and progression, the exact association of the gut microbiota in metabolically healthy obesity (MHO) remains largely unknown. METHODS An integrated paired-sample metagenomic analysis was conducted to investigate the gut microbial network and biomarkers of microbial species from the MHO and healthy non-obese subjects in the GMrepo database. Further explorations were performed in the MHO mice model using a multiomics analysis to detect changes in the composition and function of the intestinal microbiome and associated metabolites. RESULTS In the human study, 314 matched metagenomic data were qualified for the final analysis. We identified seven significantly changed species possibly involved in MHO pathogenesis (MHO-enriched: Bacteroides vulgatus, Megamonas sp; MHO-depleted: Butyrivibrio crossotus, Faecalibacterium prausnitzii, Bacteroides cellulosilyticus; Eubacterium siraeum; Bacteroides massiliensis). In the murine study, we found 79 significantly-changed species which may have possible associations with the MHO phenotype. The depletion of Bacteroides cellulosilyticus was commonly recognized in the human and murine MHO phenotype. Consistent with the metagenomic data, liquid chromatography-mass spectrometry (LC/MS) revealed significantly changed gut metabolites, which may promote MHO pathogenesis by altering the amino acids and lipid metabolic pathways. In the microbe-metabolites interaction analysis, we identified certain fatty acids (Dodecanedioic acid, Arachidic Acid, Mevalonic acid, etc.) that were significantly correlated with the MHO-enriched or depleted species. CONCLUSION This study provides insights into identifying specific microbes and metabolites that may involve in the development of obesity without metabolic disorders. Future modalities for MHO intervention may be further validated by targeting these bacteria and metabolites.
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Affiliation(s)
- Han Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Nana Tang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Qiang Ye
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Xin Yu
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Ruoyun Yang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Hong Cheng
- Department of Neurology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Guoxin Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Xiaoying Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- The First Clinical Medical College, Nanjing Medical University, Nanjing, China
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Liu S, Hu Z, Wang J, Tang N, Guo D, Ou H. Eruption pore matrix with cooperative chelating of spatially continued ligands for rapid and selective removal of uranium. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Luo X, Li B, Zhang D, Chen H, Zhou X, Yao C, Raza MA, Wang L, Tang N, Zheng G, Yan H. A new insight on peripheral nerve repair: the technique of internal nerve splinting. J Neurosurg 2022; 137:1406-1417. [PMID: 35213834 DOI: 10.3171/2022.1.jns211916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/07/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Neuropathic pain produced by symptomatic neuromas is an important problem after peripheral nerve injury (PNI). End-to-end anastomosis of the nerve stump for PNI is well established but cannot efficiently prevent neuroma-in-continuity formation. METHODS Sciatic nerve injury was used in the experimental model. Seventy-two rats were randomly divided into four groups: rats with nerve anastomosis sites supported with silicone tubes represented the internal nerve splinting (INS) group (n = 18); rats with end-to-end nerve anastomosis represented control group 1 (CON1) (n = 18); rats with INS and the nerve anastomosis site represented control group 2 (CON2) (n = 18); and rats that underwent the same surgical procedures for skin and muscle operations but without sciatic nerve injury represented the normal group (n = 18). RESULTS Gross evaluations of the nerve anastomosis sites, gastrocnemius muscle atrophy, axonal regeneration and remyelination, neuropathic pain, and scar hyperplasia of the neuromas were performed, as well as motor function evaluations. Axonal regeneration, remyelination, and gastrocnemius muscle atrophy were similar between the INS group and CON1 (p > 0.05). However, neuropathic pain and scar hyperplasia-as evaluated according to the expression of anti-sigma-1 receptor antibody and anti-α-smooth muscle actin, respectively-and the weight ratios of the neuromas were reduced in the INS group compared with those of CON1 and CON2 (p < 0.05). CONCLUSIONS Application of INS in nerve repair effectively prevented traumatic neuroma-in-continuity formation and inhibited neuropathic pain without influencing nerve regeneration in rats.
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Affiliation(s)
- Xiaobin Luo
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Baolong Li
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Dupiao Zhang
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Hongyu Chen
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Xijie Zhou
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Chenglun Yao
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Mazhar Ali Raza
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Liang Wang
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Nana Tang
- 4Department of Ophthalmology, The Lu'an Hospital Affiliated to Anhui Medical University, The Lu'an People's Hospital, Anhui, China; and
| | - Guotong Zheng
- 5Department of Otorhinolaryngology, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hede Yan
- 1Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- 2Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, China
- 3The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
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Wong RMY, Ng RWK, Chau WW, Liu WH, Chow SKH, Tso CY, Tang N, Cheung WH. Montreal cognitive assessment (MoCA) is highly correlated with 1-year mortality in hip fracture patients. Osteoporos Int 2022; 33:2185-2192. [PMID: 35763077 DOI: 10.1007/s00198-022-06426-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/04/2022] [Indexed: 10/17/2022]
Abstract
UNLABELLED Prevalence of cognitive impairment in hip fractures was 86.5%. MoCA is an independent risk factor of mortality. MoCA score of < 15 is correlated with 11.71 times increased risk of mortality. Early attention and caution should be given to these patients for appropriate intervention to decrease mortality rates. INTRODUCTION Hip fractures rank amongst the top 10 causes of disability and current mortality of hip fractures is high. Objectives were to determine 1) prevalence of cognitive impairment, 2) whether Montreal Cognitive Assessment (MoCA) score was an independent risk factor associated with mortality, 3) MoCA cut-off that result in high risk of mortality. METHODS This was a cohort study between July 2019 to June 2020. Inclusion criteria were 1) hip fracture, 2) > = 65 years old, and 3) low-energy trauma. Patients undergo assessment for cognitive impairment with MoCA. Prevalence was assessed, MoCA cut-off point, and accuracy of statistical model was evaluated. Logistic regression modelling was used to assess association between mortality and MoCA. RESULTS There were 260 patients recruited. Two hundred twenty-five patients had MoCA score < 22 signifying cognitive impairment, and 202 patients had MoCA score of < 19. 46 hip fracture patients died at 1-year follow-up. 45 of these patients had MoCA score < 19, and 1 patient had a MoCA > 22. Results showed statistical significance and good model effect (at least 0.8) with MoCA cut-off points between < 15 and < 19 (p < 0.05). After controlling confounding factors, statistical significance still existed in MoCA cut-off point at < 15 (odds ratio (95% CI) = 11.71 (1.14, 120.71); p = 0.04). CONCLUSION Prevalence of cognitive impairment in hip fractures was 86.5%. MoCA is an independent risk factor of mortality in hip fracture patients. MoCA score of < 15 is correlated with 11.71 times increased risk of mortality at 1-year after a hip fracture. AUC with MoCA score < 15 was 0.948. Early attention and caution should be given to these patients for appropriate intervention to decrease mortality rates.
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Affiliation(s)
- R M Y Wong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - R W K Ng
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - W W Chau
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - W H Liu
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - S K H Chow
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - C Y Tso
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - N Tang
- Department of Orthopaedics & Traumatology, Prince of Wales Hospital, Hospital Authority, Hong Kong SAR, China
| | - W-H Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
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13
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Tang N, Chen H, Chen R, Tang W, Zhang H. Predicting Mucosal Healing in Crohn's Disease: A Nomogram Model Developed from a Retrospective Cohort. J Inflamm Res 2022; 15:5515-5525. [PMID: 36176354 PMCID: PMC9514782 DOI: 10.2147/jir.s378304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/20/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Mucosal healing (MH) has become a therapeutic end point for Crohn's disease (CD). The purpose of this study was to identify potential risk factors responsible for a lower probability of mucosal healing in CD. It also aimed to create and validate a noninvasive tool for predicting mucosal healing in CD to aid clinical decision-making. Patients and Methods We established a derivation cohort diagnosed with CD, in which endoscopic examination was performed before and after treatment at the First Affiliated Hospital of Nanjing Medical University between January 2010 and June 2021. Patient data including demographic and clinical characteristics and treatment details were collected. The achievement of mucosal healing (without ulceration on endoscopic examination) after treatment was the endpoint observed during follow-up. We performed logistic regression analysis to identify factors associated with mucosal healing. These factors were used to develop a model (CD mucosal healing prediction nomogram) to predict mucosal healing in CD. External validation was performed using a new cohort of 60 patients from the Second Affiliated Hospital of Soochow University between January 2012 and June 2021. Results A total of 331 patients were included in the derivation cohort. We found the following factors to be independently associated with mucosal healing after treatment: disease course <11 months, ulcer size <0.5 cm, Harvey-Bradshaw Index score <9, infliximab treatment, and non-exclusive use of 5-aminosalicylic acid. The model incorporating these factors achieved good discrimination, calibration, and clinical decision curve analysis results on internal validation (C-index: 0.788, 95% confidence interval [CI]: 0.74-0.84). The external validation cohort also demonstrated good discrimination (C-index: 0.785, 95% CI: 0.68-0.90) and calibration. Conclusion The CD mucosal healing prediction nomogram model demonstrated good reliability and validated. It can potentially be developed into a simple and clinically useful tool for predicting mucosal healing in CD.
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Affiliation(s)
- Nana Tang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Han Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Ruidong Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Wen Tang
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Hongjie Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
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Jiao C, Zhang Q, Yang M, Ma J, Zhao X, Tang N, Dai M, Li Q, Jiang Z, Huang X, Zhang H, Sun L. Shenling Baizhu San ameliorates ulcerative colitis by regulating the gut microbiota and its tryptophan metabolites: A complementary medicine to mesalamine. J Ethnopharmacol 2022; 291:115145. [PMID: 35219821 DOI: 10.1016/j.jep.2022.115145] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 02/09/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shenling Baizhu San (SBS) is commonly employed to improve gastrointestinal dysfunction in patients with ulcerative colitis (UC) in China. SBS combined with mesalamine has been demonstrated to result in improve its curative effects without increasing any adverse reactions, but the underlying mechanism remains unclarified. AIM OF THE STUDY Our study aimed to illuminate the potential therapeutic effects and mechanisms of SBS, which is a medicine complementary to mesalamine, in the treatment of UC. MATERIALS AND METHODS A prospective cohort study was conducted to evaluate the efficacy of SBS as a complementary medicine to mesalamine for patients with UC (n = 48). The patients in the control group (n = 24) were given mesalamine alone, whereas those in the experimental group were administered mesalamine combined with SBS. The therapeutic outcome was assessed at 8 weeks. The structures of the gut microbiota (GMB) were characterized by 16S rRNA sequencing, and the microbial tryptophan metabolites were analyzed by UPLC-MS/MS to investigate the mechanism through which SBS achieves its effects. RESULTS Our results showed that the combination of SBS and mesalamine could significantly improve the clinical signs of UC by achieving mucosal healing and relieving colon damage. Interestingly, the combination of SBS and mesalamine could alter the GMB structures and increase the microbial levels of tryptophan metabolites, including indole-3-propionic acid and indole-3-acetic acid. CONCLUSION SBS combined with mesalamine is effective in improving the clinical and endoscopic outcomes of patients with UC. SBS, as a complementary therapy to conventional treatment, alleviates UC via the GMB-tryptophan metabolite axis.
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Affiliation(s)
- Chunhua Jiao
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Qianwen Zhang
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
| | - Mengjiao Yang
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
| | - Jingjing Ma
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Xiaojing Zhao
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Nana Tang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Mingxin Dai
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
| | - Qingyu Li
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
| | - Zhenzhou Jiang
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
| | - Xin Huang
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
| | - Hongjie Zhang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Lixin Sun
- Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
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Ye Z, Zhu Y, Tang N, Zhao X, Jiang J, Ma J, Zhang H. α7 nicotinic acetylcholine receptor agonist GTS-21 attenuates DSS-induced intestinal colitis by improving intestinal mucosal barrier function. Mol Med 2022; 28:59. [PMID: 35659178 PMCID: PMC9164421 DOI: 10.1186/s10020-022-00485-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 05/05/2022] [Indexed: 12/02/2022] Open
Abstract
Background and aims Cholinergic output, which could modulate innate immune responses through stimulation of α7 nicotinic acetylcholine receptor (α7nAChR), might be a target to minimize tissue damage in autoimmune disease. GTS-21, a selective α7nAChR agonist, has previously demonstrated to inhibit synovium inflammation in rheumatoid arthritis. In this study, we investigated the effect of GTS-21 on dextran sulfate sodium (DSS)-induced colitis model and its potential mechanism. Methods Male BABL/c mice (n = 32) were randomly divided into four groups: normal control group, DSS-induced colitis group, GTS-21 treatment with or without α7nAChR antagonist α-BGT treatment group. Disease activity index (DAI), histological activity index (HAI) and colonic macroscopic damage were evaluated. Fluorescein isothiocyanate (FITC)–dextran assay was applied to measure intestinal permeability. The expressions of tight junction (TJ) proteins and NF-κB associated proteins were detected by Western blot. Results GTS-21 could decrease DAI scores, HAI scores, intestinal permeability and reduce the intestinal bacterial translocation in DSS-induced colitis group, whereas α7nAChR antagonist α-BGT could impair this protective influence. The expressions of TJ proteins were increased with administration of GTS-21 both in vivo and in vitro. Furthermore, GTS-21 also inhibited the NF-қB activation in intestinal epithelial cells and colitis model, while α-BGT reversed the inhibitory effect. Conclusion The α7nAChR agonist GTS-21 attenuated DSS-induced colitis through increasing expressions of TJ proteins in colon tissues and improved intestinal barrier function, which might be due to modulating NF-қB activation in intestinal epithelial cells. Supplementary Information The online version contains supplementary material available at 10.1186/s10020-022-00485-6.
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Affiliation(s)
- Ziping Ye
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Yunjuan Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China.,Department of Gastroenterology, Ganyu District People's Hospital of Lianyungang City, Lianyungang, Jiangsu Province, People's Republic of China
| | - Nana Tang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Xiaojing Zhao
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Jingyue Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Jingjing Ma
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China
| | - Hongjie Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, Jiangsu Province, People's Republic of China.
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Tang N, Chen H, Chen R, Tang W, Zhang H. Combination of serological biomarkers and clinical features to predict mucosal healing in Crohn's disease: a multicenter cohort study. BMC Gastroenterol 2022; 22:229. [PMID: 35538410 PMCID: PMC9088028 DOI: 10.1186/s12876-022-02304-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/27/2022] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Mucosal healing (MH) has become the treatment goal of patients with Crohn's disease (CD). This study aims to develop a noninvasive and reliable clinical tool for individual evaluation of mucosal healing in patients with Crohn's disease. METHODS A multicenter retrospective cohort was established. Clinical and serological variables were collected. Separate risk factors were incorporated into a binary logistic regression model. A primary model and a simple model were established, respectively. The model performance was evaluated with C-index, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy. Internal validation was performed in patients with small intestinal lesions. RESULTS A total of 348 consecutive patients diagnosed with CD who underwent endoscopic examination and review after treatment from January 2010 to June 2021 were composed in the derivation cohort, and 112 patients with small intestinal lesions were included in the validation cohort. The following variables were independently associated with the MH and were subsequently included into the primary prediction model: PLR (platelet to lymphocyte ratio), CAR (C-reactive protein to albumin ratio), ESR (erythrocyte sedimentation rate), HBI (Harvey-Bradshaw Index) score and infliximab treatment. The simple model only included factors of PLR, CAR and ESR. The primary model performed better than the simple one in C-index (87.5% vs. 83.0%, p = 0.004). There was no statistical significance between these two models in sensitivity (70.43% vs. 62.61%, p = 0.467), specificity (87.12% vs. 80.69%, p = 0.448), PPV (72.97% vs. 61.54%, p = 0.292), NPV (85.65% vs. 81.39%, p = 0.614), and accuracy (81.61% vs. 74.71%, p = 0.303). The primary model had good calibration and high levels of explained variation and discrimination in validation cohort. CONCLUSIONS This model can be used to predict MH in post-treatment patients with CD. It can also be used as an indication of endoscopic surveillance to evaluate mucosal healing in patients with CD after treatment.
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Affiliation(s)
- Nana Tang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, China
| | - Han Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, China
| | - Ruidong Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, China
| | - Wen Tang
- Department of Gastroenterology, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, China.
| | - Hongjie Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, China.
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Zheng J, Tang N, Xie H, Breit B. Regio-, Diastereo-, and Enantioselective Decarboxylative Hydroaminoalkylation of Dienol Ethers Enabled by Dual Palladium/Photoredox Catalysis. Angew Chem Int Ed Engl 2022; 61:e202200105. [PMID: 35170841 PMCID: PMC9314026 DOI: 10.1002/anie.202200105] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Indexed: 12/15/2022]
Abstract
Intermolecular photocatalytic hydroaminoalkylation (HAA) of alkenes have emerged as a powerful method for the construction of alkyl amines. Although there are some studies aiming at stereoselective photocatalytic HAA reactions, the alkenes are limited to electrophilic alkenes. Herein, we report a highly regio‐, diastereo‐, and enantioselective HAA of electron‐rich dienol ethers and α‐amino radicals derived from α‐amino acids using a unified photoredox and palladium catalytic system. This decarboxylative 1,2‐Markovnikov addition enables the construction of vicinal amino tertiary ethers with high levels of regio‐ (up to >19 : 1 rr), diastereo‐ (up to >19 : 1 dr), and enantioselectivity control (up to >99 % ee). Mechanistic studies support a reversible hydropalladation as a key step.
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Affiliation(s)
- Jun Zheng
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Nana Tang
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Hui Xie
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
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Zhang S, Wang X, Xiang X, Yang H, Tang N, Liu L, Jiang B. A Prospective Trial to Access the Optimal Circumference of Resection in Antireflux Mucosectomy for Treatment-refractory GERD. J Clin Gastroenterol 2022; 56:401-404. [PMID: 34974493 DOI: 10.1097/mcg.0000000000001650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/05/2021] [Indexed: 01/05/2023]
Abstract
OBJECTIVE There is still no gold standard regarding the optimal circumference of antireflux mucosectomy (ARMS) in patients with treatment-refractory gastroesophageal reflux disease (GERD). The aim of this study is to assess the safety and effectiveness of resection procedures when the circumferences are different. PATIENTS AND METHODS Thirty-two patients with treatment-refractory GERD were allocated into group A (16 cases) and group B (16 cases) by randomization. In group A and group B, a 2/3 and 1/2 circumference, 1.5 cm wide mucosal resection of the gastric cardia was performed. Health-related quality of life (HRQOL), frequency scale for the symptoms of GERD (FSSG), DeMeester scores and acid exposure time (AET) were accessed at baseline and at 24 months after treatment. Physical component summaries (PCS), mental component summaries (MCS), and RE-specific summary (RES) scores were calculated. RESULTS All patients had successful surgical procedures and no bleeding, perforation, or dysphagia occurred. The PCS, MCS, and RES scores of post-ARMS were higher than those of pre-ARMS in groups A and B, and the FSSG, DeMeester scores and AET decreased after ARMS in both groups, with differences that were statistically significant (P<0.05). The changes in PCS, MCS, RES, FSSG, DeMeester scores, and AET were greater in group A than in group B, with significant differences in PCS, MCS, RES, and FSSG scores (P<0.05), but no significant differences in, DeMeester scores and AET (P>0.05). CONCLUSION ARMS is an effective treatment for treatment-refractory GERD. Moreover, we recommend the 2/3 circumference, 1.5 cm wide mucosal resection of the gastric cardia.
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Affiliation(s)
- Shiyu Zhang
- First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi
- The First People's Hospital of Suqian, Suqian, Jiangsu, China
| | - Xiaoyan Wang
- The First People's Hospital of Suqian, Suqian, Jiangsu, China
| | - Xuelian Xiang
- First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi
| | - Huiying Yang
- First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi
| | - Nana Tang
- The First People's Hospital of Suqian, Suqian, Jiangsu, China
| | - Li Liu
- First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi
| | - Bo Jiang
- The First People's Hospital of Suqian, Suqian, Jiangsu, China
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Hu H, Tang N, Zhang F, Li L, Li L. Bioinformatics and System Biology Approach to Identify the Influences of COVID-19 on Rheumatoid Arthritis. Front Immunol 2022; 13:860676. [PMID: 35464423 PMCID: PMC9021444 DOI: 10.3389/fimmu.2022.860676] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/16/2022] [Indexed: 02/05/2023] Open
Abstract
Background Severe coronavirus disease 2019 (COVID -19) has led to a rapid increase in mortality worldwide. Rheumatoid arthritis (RA) was a high-risk factor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, whereas the molecular mechanisms underlying RA and CVOID-19 are not well understood. The objectives of this study were to analyze potential molecular mechanisms and identify potential drugs for the treatment of COVID-19 and RA using bioinformatics and a systems biology approach. Methods Two Differentially expressed genes (DEGs) sets extracted from GSE171110 and GSE1775544 datasets were intersected to generate common DEGs, which were used for functional enrichment, pathway analysis, and candidate drugs analysis. Results A total of 103 common DEGs were identified in the two datasets between RA and COVID-19. A protein-protein interaction (PPI) was constructed using various combinatorial statistical methods and bioinformatics tools. Subsequently, hub genes and essential modules were identified from the PPI network. In addition, we performed functional analysis and pathway analysis under ontological conditions and found that there was common association between RA and progression of COVID-19 infection. Finally, transcription factor-gene interactions, protein-drug interactions, and DEGs-miRNAs coregulatory networks with common DEGs were also identified in the datasets. Conclusion We successfully identified the top 10 hub genes that could serve as novel targeted therapy for COVID-19 and screened out some potential drugs useful for COVID-19 patients with RA.
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Affiliation(s)
- Huan Hu
- Department of Rheumatology and Immunology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Nana Tang
- Medical Intensive Care Unit, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Facai Zhang
- Department of Urology/Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Li Li
- Medical Intensive Care Unit, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Long Li
- Department of Rheumatology and Immunology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
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20
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Zheng J, Tang N, Xie H, Breit B. Regio‐, Diastereo‐, and Enantioselective Decarboxylative Hydro‐aminoalkylation of Dienol Ethers Enabled by Dual Palladium/Pho‐toredox Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jun Zheng
- Institut für Organische Chemie Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| | - Nana Tang
- Institut für Organische Chemie Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| | - Hui Xie
- Institut für Organische Chemie Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
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21
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Lin X, Pan XM, Peng ZK, Wang K, Tang N. [Glucose-6 phosphatase catalytic subunit inhibits the proliferation of liver cancer cells by inducing cell cycle arrest]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:213-219. [PMID: 35359074 DOI: 10.3760/cma.j.cn501113-20210204-00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the effects of glucose-6-phosphatase catalytic subunit (G6PC) recombinant adenovirus on proliferation and cell cycle regulation of liver cancer cells. Methods: Recombinant adenovirus AdG6PC was constructed. Huh7 cells and SK-Hep1 cells were set as Mock, AdGFP and AdG6PC group. Cell proliferation and clone formation assay were used to observe the proliferation of liver cancer cells. Transwell and scratch assay were used to observe the invasion and migration of liver cancer cells. Cell cycle flow cytometry assay was used to analyze the effect of G6PC overexpression on the proliferation cycle of liver cancer cells. Western blot was used to detect the effect of G6PC overexpression on the cell-cycle protein expression in liver cancer cells. Results: The recombinant adenovirus AdG6PC was successfully constructed. Huh7 and SK-Hep1 cells proliferation assay showed that the number of proliferating cells in the AdG6PC group was significantly lower than the other two groups (P < 0.05). Clone formation assay showed that the number of clones was significantly lower in AdG6PC than the other two groups (P < 0.05), suggesting that G6PC overexpression could significantly inhibit the proliferation of liver cancer cells. Transwell assay showed that the number of cell migration was significantly lower in AdG6PC than the other two groups (P < 0.05). Scratch repair rate was significantly lower in AdG6PC than the other two groups (P < 0.05), suggesting that G6PC overexpression can significantly inhibit the invasion and migration of liver cancer cells. Cell cycle flow cytometry showed that G6PC overexpression had significantly inhibited the Huh7 cells G(1)/S phase transition. Western blot result showed that G6PC overexpression had down-regulated the proliferation in cell-cycle related proteins expression. Conclusion: G6PC inhibits the proliferation, cell-cycle related expression, and migration of liver cancer cells by inhibiting the G(1)/S phase transition.
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Affiliation(s)
- X Lin
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
| | - X M Pan
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
| | - Z K Peng
- Chongqing Yucai Middle School, Chongqing 400050, China
| | - K Wang
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
| | - N Tang
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing 400016, China
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22
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Mao X, Ma J, Jiao C, Tang N, Zhao X, Wang D, Zhang Y, Ye Z, Xu C, Jiang J, Wu S, Cui X, Zhang H, Qiu X. Front Cover:
Faecalibacterium prausnitzii
Attenuates DSS‐Induced Colitis by Inhibiting the Colonization and Pathogenicity of
Candida albicans. Mol Nutr Food Res 2021. [DOI: 10.1002/mnfr.202170056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Mao X, Ma J, Jiao C, Tang N, Zhao X, Wang D, Zhang Y, Ye Z, Xu C, Jiang J, Wu S, Cui X, Zhang H, Qiu X. Faecalibacterium prausnitzii Attenuates DSS-Induced Colitis by Inhibiting the Colonization and Pathogenicity of Candida albicans. Mol Nutr Food Res 2021; 65:e2100433. [PMID: 34558816 DOI: 10.1002/mnfr.202100433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 09/12/2021] [Indexed: 11/12/2022]
Abstract
SCOPE Intestinal commensal microbiota interactions play critical roles in the inflammatory bowel disease (IBD) development. Candida albicans (CA) can aggravate intestinal inflammation; however, whether Faecalibacterium prausnitzii (FP) can antagonize CA is unknown. METHODS AND RESULTS CA are co-cultured with bacteria (FP and Escherichia coli (EC)), bacterial supernatant, and bacterial medium, respectively. Then, the CA hyphae-specific genes' expression and CA cells' morphology are investigated. The Nod-like receptor pyrin-containing protein 6 (NLRP6) inflammasome, inflammatory cytokines, and antimicrobial peptides (AMPs) production are evaluated in intestinal epithelial cells pre-treated with bacteria, bacterial med, and bacterial supernatant and exposed without or with CA. Both bacteria significantly prohibit CA numbers, while only FP and FP supernatant prohibit the transformation and virulence factors (extracellular phospholipase, secreted aspartyl proteinase, and hemolysin) secretion of CA in a co-culture system compared with media controls. Further, FP and FP supernatant promote the production of the NLRP6 inflammasome, interleukin (IL)-1β, IL-18, and antibacterial peptides (β-defensin (BD)-2 and BD-3) and inhibit in vitro and in vivo CA growth and pathogenicity, and alleviate DSS-colitis in mice, while EC do not show the similar effect. CONCLUSION FP improve intestinal inflammation by inhibiting CA reproduction, colonization, and pathogenicity and inducing AMP secretion in the gut. This study uncovers new relationships between intestinal microbes and fungi in IBD patients.
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Affiliation(s)
- Xiaqiong Mao
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jingjing Ma
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chunhua Jiao
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Nana Tang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaojing Zhao
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Di Wang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yue Zhang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ziping Ye
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chenjing Xu
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jingyue Jiang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shasha Wu
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiufang Cui
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hongjie Zhang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xinyun Qiu
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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24
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Wu L, Wang W, Leng Q, Tang N, Zhou N, Wang Y, Wang DW. Focus on Autoimmune Myocarditis in Graves' Disease: A Case-Based Review. Front Cardiovasc Med 2021; 8:678645. [PMID: 34307494 PMCID: PMC8292634 DOI: 10.3389/fcvm.2021.678645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/02/2021] [Indexed: 12/15/2022] Open
Abstract
The manifestations of hyperthyroidism-related myocardial damage are multitudinous, including arrhythmia, dilated cardiomyopathy, valvular diseases, and even cardiogenic shock. Acute myocarditis induced by thyrotoxicosis had been reported in a few studies. However, attention on its prevalence and underlying mechanisms is sorely lacking. Its long-term harm is often ignored, and it may eventually develop into dilated cardiomyopathy and heart failure. We report a case of Graves' disease with a progressive elevation of hypersensitive cardiac troponin-I at several days after discontinuation of the patient's anti-thyroid drugs. Cardiac magnetic resonance imaging (CMRI) showed inflammatory edema of some cardiomyocytes (stranded enhanced signals under T2 mapping), myocardial necrosis (scattered enhanced signals under T1 late gadolinium enhancement) in the medial and inferior epicardial wall, with a decreased left ventricular systolic function (48%), which implied a possibility of acute myocarditis induced by thyrotoxicosis. The patient was then given a transient glucocorticoid (GC) treatment and achieved a good curative effect. Inspired by this case, we aim to systematically elaborate the pathogenesis, diagnosis, and treatment of hyperthyroidism-induced autoimmune myocarditis. Additionally, we emphasize the importance of CMRI and GC therapy in the diagnosis and treatment of hyperthyroidism-related myocarditis.
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Affiliation(s)
- Lujin Wu
- Division of Cardiology, Department of Internal Medicine, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Qianru Leng
- Division of Cardiology, Department of Internal Medicine, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Nana Tang
- Nursing Teaching Office of Internal Medicine, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Ning Zhou
- Division of Cardiology, Department of Internal Medicine, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
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25
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Deng P, Tang N, Li L, Zou G, Xu Y, Liu Z. Diagnostic value of combined detection of IL-1β, IL-6, and TNF-α for sepsis-induced cardiomyopathy. Med Clin (Barc) 2021; 158:413-417. [PMID: 34147250 DOI: 10.1016/j.medcli.2021.04.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION This study aimed to explore the diagnostic value and the correlation of the combined detection of interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) with sepsis-induced cardiomyopathy (SIC). PATIENTS AND METHODS Admitted to our hospital from January 2017 to January 2019, 96 patients with SIC (a study group) and 90 patients with sepsis (a control group) were enrolled. The three cytokines were determined and the diagnostic value of their combined detection for SIC was analyzed. RESULTS The cytokines were remarkably higher in the study group (p<.001). The combined detection of the three had a better diagnostic value for SIC (p<.001). The three cytokines were independent risk factors for the death of patients with SIC. CONCLUSION IL-1β, IL-6, and TNF-α in SIC patients rise markedly. The combined detection of the three has a better predictive value for patients with SIC and is closely related to the patients' prognoses, so it may be crucial in diagnosing and treating the disease.
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Affiliation(s)
- Peng Deng
- Department of Cardiology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Nana Tang
- Department of Cardiology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Lin Li
- Department of Cardiology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Guohui Zou
- Department of Cardiology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Yang Xu
- Department of Cardiology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Zhongyong Liu
- Department of Cardiology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China.
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26
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Brijmohan A, Tang N, Dalgarno N, Thakrar A. Women’s cardiovascular health medical education initiative. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2020.02.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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27
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Abstract
Described herein is a novel radical-mediated [3 + 2]-cycloaddition reaction of alkenes to afford difluorocyclopentanones.
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Affiliation(s)
- Nana Tang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Yan Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Tao Niu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Shan Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Hongchun Dong
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
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28
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Chen W, Wu L, Jiang LF, Hu YQ, Zhai Y, Li JH, Wu Y, Tang N. Yifei Xuanfei Jiangzhuo Chinese bioformulation improves cognitive function in a murine model of vascular dementia - the implication of PI3K/AKT and Erk signalling pathway. J BIOL REG HOMEOS AG 2020; 34:2177-2183. [PMID: 33185080 DOI: 10.23812/20-310-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- W Chen
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - L Wu
- Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Scientific Laboratorial Centre, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - L F Jiang
- Graduate College, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Y Q Hu
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Y Zhai
- Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi International Zhuang Medicine Hospital, Nanning, Guangxi, China
| | - J H Li
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Y Wu
- Graduate College, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - N Tang
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.,Guangxi Key Laboratory of Chinese Medicine Foundation Research, Guangxi University of Chinese Medicine, Nanning, Guangxi, China
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29
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Qiu X, Zhao X, Cui X, Mao X, Tang N, Jiao C, Wang D, Zhang Y, Ye Z, Zhang H. Characterization of fungal and bacterial dysbiosis in young adult Chinese patients with Crohn's disease. Therap Adv Gastroenterol 2020; 13:1756284820971202. [PMID: 33240394 PMCID: PMC7672770 DOI: 10.1177/1756284820971202] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/14/2020] [Indexed: 02/04/2023] Open
Abstract
Intestinal microbiota dysbiosis has been described in inflammatory bowel disease (IBD), but data from China are limited. In this study, we performed molecular analysis of the fecal microbial community from 20 healthy Chinese subjects and 25 patients with Crohn's disease (CD), and evaluated associations with bacterial and fungal compositions. Decreased richness and diversity of bacterial composition was observed in the CD group compared with healthy (H) subjects. Significant structural differences in bacterial (but not fungal) composition among healthy controls and CD patients were found. A reduction in Firmicutes and Actinobacteria abundance, and overrepresentation of Proteobacteria were observed in the CD patients compared with the H group. The Escherichia-Shigella genus was overrepresented in the CD group, whereas Faecalibacterium, Gemmiger, Bifidobacterium, Romboutsia, Ruminococcus, Roseburia, and Fusicatenibacter abundance were decreased in the CD group compared with H subjects. Differences in fungal microbiota between the H and CD groups were observed at the genus rather than at the phylum level. The Candida genus was overrepresented in the CD (active disease) group compared with the H group, whereas no difference between CD (remission) and H groups was observed. Aspergillus, unclassified_Sordariomycetes, and Penicillium genera had greater representation in the H subjects compared with the CD group. Bacterial and fungal intra- and inter-kingdom correlations were observed between the H and CD groups. Therefore, fecal bacterial and fungal microbiome communities differed considerably between H and CD patients, and between Chinese and Western populations. The role of gut microbiota in homeostasis and in gastrointestinal disorders should be investigated further.
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Affiliation(s)
| | | | - Xiufang Cui
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaqiong Mao
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Nana Tang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chunhua Jiao
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Di Wang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yue Zhang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ziping Ye
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hongjie Zhang
- Department of Gastroenterology, First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300#, Nanjing, 210029, China
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Liu HP, Lv D, Wang JY, Zhang Y, Chang JF, Liu ZT, Tang N. Long noncoding RNA PCAT-1 promoted ovarian cancer cell proliferation and invasion by suppressing KLF6. Eur Rev Med Pharmacol Sci 2020; 23:4650-4655. [PMID: 31210290 DOI: 10.26355/eurrev_201906_18044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Recently, the role of long noncoding RNAs (lncRNAs) in tumor progression has caught attention in numerous researchers. In our investigation, lncRNA PCAT-1 was studied to identify how it functioned in the progression of ovarian cancer. PATIENTS AND METHODS LncRNA PCAT-1 expression was detected by quantitative Real-time polymerase chain reaction (qRT-PCR) in both ovarian cancer cells and tissue samples. Furthermore, to identify the function of PCAT-1 in ovarian cancer, cell proliferation, transwell assay and Matrigel assay were conducted. In addition, by performing qRT-PCR and Western blot assay, the underlying mechanism was explored. RESULTS PCAT-1 expression was remarkably higher in ovarian cancer samples when compared with that in corresponding ones. Moreover, cell proliferation, migration and invasion were inhibited after PCAT-1 was knocked down in ovarian cancer cells. Moreover, the mRNA and protein expression of KLF6 (Krüppel-like factor 6) was upregulated after PCAT-1 was knocked down. Furthermore, the KLF6 expression level was negatively related to the PCAT-1 expression level in ovarian cancer samples. CONCLUSIONS We showed that PCAT-1 promotes the progression of ovarian cancer through enhancing cell metastasis and proliferation via suppressing KLF6, which might be a novel therapeutic strategy in ovarian cancer.
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Affiliation(s)
- H-P Liu
- Reproductive Medicine Center, The 960th Hospital of the PLA Joint Logistics Support Force, China.
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31
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Liu HP, Lv D, Wang JY, Zhang Y, Chang JF, Liu ZT, Tang N. Long noncoding RNA PCAT-1 promoted ovarian cancer cell proliferation and invasion by suppressing KLF6. Eur Rev Med Pharmacol Sci 2020; 24:7566. [PMID: 32744671 DOI: 10.26355/eurrev_202007_22228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Long noncoding RNA PCAT-1 promoted ovarian cancer cell proliferation and invasion by suppressing KLF6, by H.-P. Liu, D. Lv, J.-Y. Wang, Y. Zhang, J.-F. Chang, Z.-T. Liu, N. Tang, published in Eur Rev Med Pharmacol Sci 2019; 23 (11): 4650-4655-DOI: 10.26355/eurrev_201906_18044-PMID: 31210290" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/18044.
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Affiliation(s)
- H-P Liu
- Reproductive Medicine Center, The 960th Hospital of the PLA Joint Logistics Support Force, China
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32
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Wan Q, Liu Z, Yang M, Deng P, Tang N, Liu Y. Triptolide ameliorates fine particulate matter-induced podocytes injury via regulating NF-κB signaling pathway. BMC Mol Cell Biol 2020; 21:4. [PMID: 32013860 PMCID: PMC6998203 DOI: 10.1186/s12860-020-0248-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 06/02/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND PM2.5 is associated closely with an increased risk of membranous nephropathy (MN), however, whether PM2.5 could induce podocytes injury, the underlying pathology for MN, has not be thoroughly studied. Triptolide, an active component in Tripterygium wilfordii Hook F, is frequently used to treat MN in China, but its effects on PM2.5-induced podocytes injury is still largely unknown. Therefore, we evaluated the effects of PM2.5 on podocytes, and explored whether triptolide could improve PM2.5-induced podocytes injury and the possible underlying mechanisms. RESULTS Podocytes were incubated with PM2.5 after being pre-treated with triptolide, viability, apoptosis rate and migratory capacity of podocytes were determined by CCK-8 assay, flow cytometry and Transwell assay, respectively. Additionally, the levels of lactate dehydrogenase (LDH), malondialdehyde (MDA), and superoxide dismutase (SOD) in podocytes, the cytoskeleton of podocytes, the protein expressions of nephrin, podocin, Bcl-2, Bax, nuclear factor kappa-B/p65 (NF-κB/p65) and phospho-inhibitor of NF-κB (p-IκBα) were measured. Our data showed that PM2.5 treatment significantly increased the disorganization of F-actin stress fibers, the damaged structural integrity of nucleus, the deranged and dissociated cytoskeleton in podocytes, increased the podocytes apoptosis rate, the levels of MDA and LDH, markedly up-regulated the protein expression of Bax, NF-κB/p65 and p-IκBα, down-regulated the protein expression of nephrin, podocin and Bcl-2, and significantly decreased the level of SOD, the migration rate and the viability of podocytes, compared with those of the untreated podocytes. These effects of PM2.5 on podocytes, however, were reversed by triptolide administration. CONCLUSION These results suggest that triptolide could prevent against PM2.5-induced podocytes injury via suppressing NF-κB signaling pathway.
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Affiliation(s)
- Qiang Wan
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China.
| | - Zhongyong Liu
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine of Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Peng Deng
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Nana Tang
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - Yanwei Liu
- Department of Medical Cardiology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
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Hu YQ, Chen W, Yan MH, Lai JJ, Tang N, Wu L. Ischemic preconditioning protects brain from ischemia/reperfusion injury by attenuating endoplasmic reticulum stress-induced apoptosis through PERK pathway. Eur Rev Med Pharmacol Sci 2019; 21:5736-5744. [PMID: 29272010 DOI: 10.26355/eurrev_201712_14020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to explore the effects of cerebral ischemic preconditioning which can decrease brain ischemia/reperfusion (I/R) injury by inhibiting endoplasmic reticulum (ER) stress-induced apoptosis. MATERIALS AND METHODS The focal cerebral ischemia rat was selected as the experimental model. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) positive cells in ischemic penumbra were assessed after cerebral reperfusion. We assessed terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) positive cells and measured the expressions of phosphorylation PERK (p-PERK), glucose-regulated protein 78 (GRP78), activating transcription factor-4 (ATF4) and caspase-12 in ischemic penumbra after cerebral reperfusion. RESULTS We showed that the infarct sizes can be reduced due to the preconditioning under the influence of brain ischemia after reperfusion. The effect of preconditioning on the expression of ER stress proteins suggested the expressions of the 4 proteins p-PERK, ATF4, caspase-12 and GRP78 in the penumbra cortex by immunohistochemistry and Western blot increased after cerebral ischemia. Significant reduction of the number of TUNEL-positive cells was in the penumbra cortex of the preconditioning group. CONCLUSIONS We found that cerebral ischemic preconditioning can protect the brain from I/R injury by inhibiting ER stress-induced apoptosis; the pathway of PERK is involved.
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Affiliation(s)
- Y-Q Hu
- Department of Neurology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
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Chow SKH, Chim YN, Wang J, Zhang N, Wong RMY, Tang N, Leung KS, Cheung WH. Vibration treatment modulates macrophage polarisation and enhances early inflammatory response in oestrogen-deficient osteoporotic-fracture healing. Eur Cell Mater 2019; 38:228-245. [PMID: 31697398 DOI: 10.22203/ecm.v038a16] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Fracture healing is a well-orchestrated and coordinated process and begins with the inflammatory stage involving the infiltration of immune cells and the release of cytokines, including tumour necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and interleukin-10 (IL-10). Low-magnitude high-frequency vibration (LMHFV) stimulation is effective in promoting fracture healing. The study hypothesis was that the innate immune response was impaired in osteoporotic fracture and LMHFV could positively modulate it. 9-month-old ovariectomy (OVX)-induced osteoporotic rats were randomised into sham (SHAM), OVX control (OVX), OVX-vibration (OVX-VT) or OVX vibration plus administration of COX-2 specific non-steroid anti-inflammatory drugs (OVX-VT-NSAID). LMHFV (35 Hz, 0.3 g) was given 20 min/d and 5 d/week to the treatment groups. Healing and innate immune response were evaluated by weekly radiographs, endpoint micro-computed tomography (µCT), enzyme-linked immunosorbent assay (ELISA) and histomorphometry at weeks 1, 2, 4 and 8 post-treatment. Results showed that OVX slightly elevated systemic inflammation but impaired the innate immune response locally at the fracture site, with significantly lower expressions of TNF-α and IL-6 but higher IL-10 expression during the early stage of healing. LMHFV was effective in accelerating the delayed fracture healing in OVX bones by partly restoring the impaired innate immune response at the fracture site, accompanied by promoted progression of macrophage polarisation from M1 (pro-inflammatory) to M2 (anti-inflammatory) phenotype. In conclusion, vibration treatment could positively modulate the impaired innate immune response and promote macrophage polarisation in osteoporotic-fracture healing.
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Affiliation(s)
- S K-H Chow
- Department of Orthopaedics and Traumatology, 5/F, Clinical Sciences Building, the Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, PR
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Pan XM, Zhang GJ, Chen XM, Liang L, Tang N, Wang K. [Fructose-1, 6-bisphosphatase inhibits autophagy and proliferation in liver cancer cells]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:687-692. [PMID: 31594093 DOI: 10.3760/cma.j.issn.1007-3418.2019.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To construct the recombinant adenoviral containing fructose 1, 6-biphosphatase 1 (FBP1), and to investigate whether FBP1 has effect on autophagy and proliferation in liver cancer cells (HepG2). Methods: FBP1 cDNA sequence was amplified by PCR and cloned in adenovirus vector pAdTrack-TO4, and then recombinant adenovirus plasmid pAdTrack-FBP1 was constructed. The recombinant adenovirus plasmid was transfected into HEK293 cells by Lipofectamine 3000. High-titer of recombinant adenovirus AdFBP1 was obtained by packaging and amplification. HepG2 cells were infected with recombinant adenovirus AdFBP1, and the Mock and AdGFP group were set at the same time. Western blot and confocal laser scanning microscopy were used to observe the effect of FBP1 on the level of autophagy in hepatocellular carcinoma cells, and the effect of FBP1on the proliferation was observed by MTS and colony formation assay. A t-test and one-way ANOVA were used to compare the mean between group. Results: A high-titer recombinant adenovirus FBP1 was successfully constructed. Western blot and confocal laser scanning microscopy showed that the level of autophagy in AdFBP1 group was significantly lower than that in AdGFP group. Western blot results showed that LC3-II protein expression level in AdGFP was 1.10 ± 0.10 and 0.30 ± 0.01 in AdFBP1 group, F = 90.36, P < 0.01. Confocal laser scanning microscopy analysis showed that the average number of autophages in AdGFP was 28.33 ± 1.53 and 12.33 ± 1.53 in AdFBP1group, F = 97.40, P < 0.01. In addition, the results of colony formation assay and MTS assay showed that the proliferation of liver cancer cells in the AdFBP1 group was significantly inhibited compared with the AdGFP group. The results of colony formation showed that the cell clones in the AdGFP group was 65.66 ± 2.57 and 34.00 ± 2.00 in AdFBP1 group, F = 141.50, P < 0.01. MTS results showed that the absorbance of AdGFP group at 96h was 39.13 ± 2.21 and 30.61 ± 3.33 in AdFBP1 group, F = 7.80, P < 0.05. Conclusion: FBP1 inhibited the autophagy and proliferation in liver cancer cells (HepG2).
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Affiliation(s)
- X M Pan
- The Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Chongqing Medical University, Chongqing 400016, China
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Tang N, Wu X, Zhu C. Practical, metal-free remote heteroarylation of amides via unactivated C(sp 3)-H bond functionalization. Chem Sci 2019; 10:6915-6919. [PMID: 31391914 PMCID: PMC6640195 DOI: 10.1039/c9sc02564b] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 06/10/2019] [Indexed: 11/21/2022] Open
Abstract
A simple and practical approach for the regioselective heteroarylation of amides via unactivated C(sp3)–H bond functionalization is described.
Development of practical methods for the production of multi-functionalized amides is one of the most important topics in both synthetic chemistry and drug discovery. Disclosed herein is a new, efficient, site-selective heteroarylation of amides via C(sp3)–H bond functionalization. Amidyl radicals are directly generated from the amide N–H bonds under mild conditions, which trigger the subsequent 1,5-HAT process. A wide scope of aliphatic amides including carboxamides, sulfonamides, and phosphoramides are readily modified at remote C(sp3)–H bonds by installing diverse heteroaryl groups. Borne out of pragmatic consideration, this protocol can be used for the late-stage functionalization of amides.
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Affiliation(s)
- Nana Tang
- Key Laboratory of Organic Synthesis of Jiangsu Province , College of Chemistry , Chemical Engineering and Materials Science , Soochow University , 199 Ren-Ai Road , Suzhou , Jiangsu 215123 , China .
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province , College of Chemistry , Chemical Engineering and Materials Science , Soochow University , 199 Ren-Ai Road , Suzhou , Jiangsu 215123 , China .
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province , College of Chemistry , Chemical Engineering and Materials Science , Soochow University , 199 Ren-Ai Road , Suzhou , Jiangsu 215123 , China . .,Key Laboratory of Synthesis Chemistry of Natural Substances , Shanghai Institute of Organic Chemistry , Chinese Academy of Science , 345 Lingling Road , Shanghai 200032 , China
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Tang N, Bueno M, Meylan S, Incerti S, Tran HN, Vaurijoux A, Gruel G, Villagrasa C. Influence of chromatin compaction on simulated early radiation-induced DNA damage using Geant4-DNA. Med Phys 2019; 46:1501-1511. [DOI: 10.1002/mp.13405] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/07/2019] [Accepted: 01/21/2019] [Indexed: 11/11/2022] Open
Affiliation(s)
- N. Tang
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - M. Bueno
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - S. Meylan
- SymAlgo Technologies; 75 rue Léon Frot 75011 Paris France
| | - S. Incerti
- Université de Bordeaux CNRS/IN2P3 Centre d'Etudes Nucléaires de Bordeaux; Gradignan CENBG; chemin du solarium, BP120 33175 Gradignan France
| | - H. N. Tran
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - A. Vaurijoux
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - G. Gruel
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
| | - C. Villagrasa
- IRSN; Institut de Radioprotection et de Sûreté Nucléaire; BP17 92262 Fontenay aux Roses France
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Qi R, Lei CG, Bai YX, Tang N, Xing X. The AT1/Raf/ERK1/2 signaling pathway is involved in Angiotensin II-enhanced proliferation of hepatic carcinoma cells. Neoplasma 2019; 66:83-91. [DOI: 10.4149/neo_2018_171213n816] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 07/04/2018] [Indexed: 11/08/2022]
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Tang N, Shao X, Wang M, Wu X, Zhu C. Sulfonyl Chlorides Mediated Alkynylation of Non-activated Alkenes via Distal Alkynyl Group Migration. Acta Chim Sinica 2019. [DOI: 10.6023/a19050158] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tang N, Guan C, Ang K, Phua K, Chew E. Motor imagery-assisted brain-computer interface for gait retraining in neurorehabilitation in chronic stroke. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Incerti S, Kyriakou I, Bernal MA, Bordage MC, Francis Z, Guatelli S, Ivanchenko V, Karamitros M, Lampe N, Lee SB, Meylan S, Min CH, Shin WG, Nieminen P, Sakata D, Tang N, Villagrasa C, Tran HN, Brown JMC. Geant4-DNA example applications for track structure simulations in liquid water: A report from the Geant4-DNA Project. Med Phys 2018; 45. [PMID: 29901835 DOI: 10.1002/mp.13048] [Citation(s) in RCA: 198] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/03/2018] [Accepted: 06/04/2018] [Indexed: 01/11/2023] Open
Abstract
This Special Report presents a description of Geant4-DNA user applications dedicated to the simulation of track structures (TS) in liquid water and associated physical quantities (e.g., range, stopping power, mean free path…). These example applications are included in the Geant4 Monte Carlo toolkit and are available in open access. Each application is described and comparisons to recent international recommendations are shown (e.g., ICRU, MIRD), when available. The influence of physics models available in Geant4-DNA for the simulation of electron interactions in liquid water is discussed. Thanks to these applications, the authors show that the most recent sets of physics models available in Geant4-DNA (the so-called "option4" and "option 6" sets) enable more accurate simulation of stopping powers, dose point kernels, and W-values in liquid water, than the default set of models ("option 2") initially provided in Geant4-DNA. They also serve as reference applications for Geant4-DNA users interested in TS simulations.
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Affiliation(s)
- S Incerti
- University of Bordeaux, CENBG, UMR 5797, F-33170, Gradignan, France
- CNRS, IN2P3, CENBG, UMR 5797, F-33170, Gradignan, France
| | - I Kyriakou
- Medical Physics Laboratory, University of Ioannina Medical School, 45110, Ioannina, Greece
| | - M A Bernal
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - M C Bordage
- Université Toulouse III-Paul Sabatier, UMR1037 CRCT, Toulouse, France
- Inserm, UMR1037 CRCT, Toulouse, France
| | - Z Francis
- Department of Physics, Faculty of Sciences, Université Saint Joseph, Beirut, Lebanon
| | - S Guatelli
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, Australia
- Illawarra Health & Medical Research Institute, University of Wollongong, Wollongong, Australia
| | - V Ivanchenko
- Geant4 Associates International Ltd., Hebden Bridge, UK
- Tomsk State University, Tomsk, Russia
| | - M Karamitros
- Radiation Laboratory, University of Notre Dame, Notre Dame, IN 46556, USA
| | - N Lampe
- Vicinity Centres, Data Science & Insights, Office Tower One, 1341 Dandenong Rd, Chadstone, Victoria, 3148, Australia
| | - S B Lee
- Proton Therapy Center, National Cancer Center, 323, Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea
| | - S Meylan
- SymAlgo Technologies, 75 rue Léon Frot, 75011, Paris, France
| | - C H Min
- Department of Radiation Convergence Engineering, Yonsei University, Wonju, Korea
| | - W G Shin
- Department of Radiation Convergence Engineering, Yonsei University, Wonju, Korea
| | | | - D Sakata
- University of Bordeaux, CENBG, UMR 5797, F-33170, Gradignan, France
- CNRS, IN2P3, CENBG, UMR 5797, F-33170, Gradignan, France
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, Australia
| | - N Tang
- IRSN, Institut de Radioprotection et de Sureté Nucléaire, 92262, Fontenay-aux-Roses, France
| | - C Villagrasa
- IRSN, Institut de Radioprotection et de Sureté Nucléaire, 92262, Fontenay-aux-Roses, France
| | - H N Tran
- Division of Nuclear Physics, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - J M C Brown
- Department of Radiation Science and Technology, Delft University of Technology, Delft, The Netherlands
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Wang LM, Zhong H, Tang N, Pang LJ, Zhang CJ, He F. [Interaction between TRPC1 and STIM1 in calcium sensing receptor mediated calcium influx and nitric oxide production in human umbilical vein endothelial cells]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:978-984. [PMID: 29166726 DOI: 10.3760/cma.j.issn.0253-3758.2017.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the interaction of Ca(2+) protein TRPC1 and STIM1 in extracellular Ca(2+) -sensing receptor (CaR)-induced extracellular Ca(2+) influx and the production of nitric oxide (NO). Methods: Human umbilical vein endothelial cells (HUVECs) were cultured and incubated with CaR agonist spermine (activating store-operates cation channels (SOC) and receptor-operated channels (ROC)), CaR negative allosteric modulator Calhex231 (blocking SOC, activating ROC) and ROC analogue TPA (activating ROC, blocking SOC), protein kinase C (PKC) inhibitor Ro31-8220, PKCs and PKCμ inhibitor Go6967(activate SOC, blocking ROC), respectively. The interaction of TRPC1 and STIM1 was determined using the immunofluorescence methods. The interaction between TRPC1 and STIM1 were examined by Co-immuno precipitation. The HUVECs were divided into: TRPC1 and STIM1 short hairpin RNA group (shTRPC1+ shSTIM1 group), vehicle-TRPC1+ vehicle-STIM1 group and control group. The cells were incubated with four different treatments under the action of above mentioned interventions, intracellular Ca(2+) concentration ([Ca(2+) ](i)) was detected using the fluorescence Ca(2+) indicator Fura-2/AM, the production of NO was determined by DAF-FM. Results: (1) The expression of TRPC1 and STIM1 proteins levels in HUVECs: Under the confocal microscope, TRPC1 and STIM1 protein expression showed masculine gender, both located in cytoplasm in the normal control group. Post incubation with Calhex231+ TPA, Ro31-8220 and Go6967, TRPC1 and STIM1 positioned in cytoplasm was significantly reduced, and the combined TRPC1 and STIM1 was also significantly reduced. (2) The interaction of TRPC1 and STIM1 in HUVECs: The relative ratios of Calhex231+ TPA+ Spermine+ Ca(2+) group, Ro31-8220+ Spermine+ Ca(2+) group and Go6976+ Spermine+ Ca(2+) group STIM1/TRPC1 and TRPC1/STIM1 were as follows: (25.98±2.17)% and (44.10±4.01)%, (20.85±1.01)% and (46.31±3.47)%, (23.88±2.05)% and (39.65±2.91)%, which were significantly lower than those in the control group (100.00±4.66)% and (100.00±6.40)% and in the Spermine+ Ca(2+) group (106.04±2.45)% and (107.78±2.66)% (all P<0.05). (3) The influence of joint TRPC1 and STIM1 transfection to four different drugs treated HUVECs on [Ca(2+) ](i) and NO generation: The changes of two excitation fluorescence intensity ratio and NO net fluorescence intensity values were consistent, [Ca(2+) ](i) and NO net fluorescence intensity values were significantly lower in the experimental group than the control group and the vehicle group (all P<0.05), while which were similar between the vehicle group and control group (all P>0.05). Conclusions: Our results indicate that TRPC1 and STIM1 jointly regulate CaR-mediated Ca(2+) influx and nitric oxide generation in HUVECs in the form of binary complex.
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Affiliation(s)
- L M Wang
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Department of Pathophysiology, Department of Physiology, Medical College of Shihezi University, Shihezi 832002, China
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Wang X, Tang N, Lu Y, Li D. Congenital factor V deficiency and decreased VWF in a Chinese male patient with hematuria. Haemophilia 2017; 24:e16-e18. [PMID: 29105952 DOI: 10.1111/hae.13363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2017] [Indexed: 12/23/2022]
Affiliation(s)
- X. Wang
- Department of Laboratory Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - N. Tang
- Department of Laboratory Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - Y. Lu
- Department of Laboratory Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
| | - D. Li
- Department of Hematology; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
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Tian L, Duan YJ, Nie LZ, Li Z, Chen Z, Gao QZ, Yang Y, Tang N, Zheng J. [The regulation of CD44 expression by new tumor suppressor gene Arid2 and the influence of Arid2 on the invasion and metastasis in hepatocellular carcinoma cells]. Zhonghua Gan Zang Bing Za Zhi 2017; 24:196-201. [PMID: 27095763 DOI: 10.3760/cma.j.issn.1007-3418.2016.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the effect of a new tumor-suppressor gene Arid2 on the expression level of CD44 and the mechanism that Arid2 regulates the invasion and metastasis in human hepatocellular carcinoma cells HepG2 and Huh7. METHODS Recombinant pGL3-CD44 reporter plasmids were transfected into hepatoma cell lines HepG2 and Huh7 cells infected with adenovirus Arid2(Ad-Arid2). Dual luciferase assays were used to determine the relative luciferase activities of reporter plasmids. Western blot technique was used to detect the influence of Arid2 on the expression of transmembrane glycoprotein CD44. Cell migration assays of tumor cells were employed to observe the impact of overexpression of Arid2 on the invasion and metastasis abilities of tumor cells. The sizes of transplanted tumors were recorded to observe the growth of subcutaneous transplanted tumors in nude mice. Statistical significance was analyzed by one-way ANOVA for multiple comparisons, and independent-samples t-test was utilized to compare two groups. RESULTS Luciferase assay showed cells were transfected with different length of CD44 reporter plasmids, and their relative luciferase activities were improved to different degrees, compared with pGL3-Basic control. Meanwhile, the mean luciferase activities of pGL3-CD44 -791~+224bp reporter plasmids were significantly repressed by the overexpression of Arid2 which inhibition rates were up to 73.83%±0.92%(P< 0.05, HepG2) or 48.99%±1.37% (P <0.05, Huh7), compared with Ad-GFP control. Western blot results showed that CD44 protein expression was obviously decreased by overexpression of Arid2. Cell migration assays confirmed that the invasion and metastasis abilities were inhibited by increasing Arid2 expression in Human HepG2 or Huh7 cells, which inhibition rates were 66.95%±0.59%(P< 0.05)in HepG2 cells and 73.86%±0.49%(P< 0.05) in Huh7 cells respectively. The animal experiment results indicated that Arid2 could obviously delay or restrict the subcutaneous transplanted tumors growth in nude mice, which was declined by 98.57%±0.34%(P< 0.05). CONCLUSION CD44 promoter activities and protein expressions were significantly down-regulated by Arid2 in vitro. The growth and metastasis of tumors were obviously restrained in the hepatocellular carcinoma cells and nude models. In brief, these researches indicate CD44 may play important roles in the process where the invasion and metastasis of hepatocellular carcinoma cells are under the control of Arid2.The studies introduce and evaluate the relationships between Arid2 and CD44, and further provide a new research direction with the occurrence and development of hepatocellular carcinoma.
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Affiliation(s)
- L Tian
- The Key Laboratory of Molecular Biology of Infectious Diseases Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, China
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Abstract
INTRODUCTION Surgery for hip fracture may be performed out-of-hours to avoid surgical delay. There is, however, a perception that this may constitute less-than-ideal conditions and result in a poorer outcome. The aim of this study was to evaluate the surgical outcome of elderly patients with hip fracture who underwent daytime versus out-of-hours surgery in Hong Kong. This will help make decisions about whether to operate out-of-hours or to delay surgery until the following day. METHODS This retrospective study included all elderly patients with hip fracture who were operated on and discharged from the Prince of Wales Hospital in 2014. Patients were divided into groups according to the time of surgical incision. Records were examined for 30-day mortality and postoperative surgical complications, and their potential associations with surgeon characteristics. RESULTS Overall, 367 patients were selected in this study with 242 patients in the daytime group and 125 in the out-of-hours group. Demographic characteristics were comparable between the two groups. The overall 30-day mortality rate was 2.0% and the surgical complication rate was 24.2%. Compared with the daytime group, there was no increase in 30-day mortality or surgical complications for out-of- hours group. Fewer surgeons were involved in out-of-hours surgery but the number of surgeons and their qualifications did not affect the outcomes. CONCLUSIONS The two groups were homogeneous in terms of demographic characteristics. Outcomes for 30-day mortality and postoperative surgical complications were comparable between the two groups. Surgeons' qualifications and number of surgeons involved were also not associated with the outcomes. Out-of-hours surgery remains a viable option in order to facilitate early surgery.
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Affiliation(s)
- Y M Chan
- Physiotherapy Department, Pok Oi Hospital, Yuen Long, Hong Kong
| | - N Tang
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S K Chow
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
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Auyeung T, Lee J, Leung J, Tang N, Yu R, Kwok T, Woo J. PARADOXICAL ADVERSE ASSOCIATION BETWEEN HIGH VITAMIN D LEVEL AND MUSCLE STRENGTH. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T. Auyeung
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - J. Lee
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - J. Leung
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - N. Tang
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - R. Yu
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - T. Kwok
- The Chinese Univerisity of Hong Kong, Hong Kong, China
| | - J. Woo
- The Chinese Univerisity of Hong Kong, Hong Kong, China
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Leung KS, Yuen WF, Ngai WK, Lam CY, Lau TW, Lee KB, Siu KM, Tang N, Wong SH, Cheung WH. How well are we managing fragility hip fractures? A narrative report on the review with the attempt to setup a Fragility Fracture Registry in Hong Kong. Hong Kong Med J 2017; 23:264-71. [PMID: 28473651 DOI: 10.12809/hkmj166124] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION In setting up a disease registry for fragility fractures in Hong Kong, we conducted a retrospective systematic study on the management of fragility hip fractures. Patient outcomes were compared with the standards from our orthopaedic working group and those from the British Orthopaedic Association that runs a mature fracture registry in the United Kingdom. METHODS Clinical data on fragility hip fracture patients admitted to six acute major hospitals in Hong Kong in 2012 were captured. These included demographics, pre- and post-operative assessments, discharge details, complications, and 1-year follow-up information. Analysis was performed according to the local standards with reference to those from the British Orthopaedic Association. RESULTS Overall, 91.0% of patients received orthopaedic care within 4 hours of admission and 60.5% received surgery within 48 hours. Preoperative geri-orthopaedic co-management was received by 3.5% of patients and was one of the reasons for the delayed surgery in 22% of patients. Only 22.9% were discharged with medication that would promote bone health. Institutionalisation on discharge significantly increased by 16.2% (P<0.001). Only 35.1% of patients attended out-patient follow-up 1 year following fracture, and mobility had deteriorated in 69.9% compared with the premorbid state. Death occurred in 17.3% of patients within a year of surgery compared with 1.6% mortality rate in a Hong Kong age-matched population. CONCLUSIONS The efficiency and quality of acute care for fragility hip fracture patients was documented. Regular geri-orthopaedic co-management can enhance acute care. Much effort is needed to improve functional recovery, prescription of bone health medications, attendance for follow-up, and to decrease institutionalisation. A Fracture Liaison Service is vital to improve long-term care and prevent secondary fractures.
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Affiliation(s)
- K S Leung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - W F Yuen
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - W K Ngai
- Department of Orthopaedics and Traumatology, North District Hospital, Sheung Shui, Hong Kong
| | - C Y Lam
- Department of Orthopaedics and Traumatology, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - T W Lau
- Department of Orthopaedics and Traumatology, Queen Mary Hospital, Pokfulam, Hong Kong
| | - K B Lee
- Department of Orthopaedics and Traumatology, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - K M Siu
- Department of Orthopaedics and Traumatology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - N Tang
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Shatin, Hong Kong
| | - S H Wong
- Department of Orthopaedics and Traumatology, Caritas Medical Centre, Shamshuipo, Hong Kong
| | - W H Cheung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong
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Tang N, Ting V, Fu M, Roura E. The expression of bitter taste receptors (T2Rs) in the porcine gastrointestinal tract epithelium and smooth muscle. Anim Prod Sci 2017. [DOI: 10.1071/anv57n12ab108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Garg D, Tang N, Homel P, Ricardo M, Bral P. Febrile Morbidity After Robotic versus Abdominal Myomectomy. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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50
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Bordelon J, Tang N, Elston D, Niedt G, Lazic Strugar T. Multiple apocrine hidrocystomas successfully treated with botulinum toxin A. Br J Dermatol 2016; 176:488-490. [DOI: 10.1111/bjd.14753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2016] [Indexed: 11/28/2022]
Affiliation(s)
- J.R. Bordelon
- Department of Dermatology and Cutaneous Surgery University of Miami Miller School of Medicine Miami FL U.S.A
| | - N. Tang
- Department of Dermatology Mount Sinai School of Medicine New York NY U.S.A
| | - D. Elston
- Department of Dermatology and Dermatologic Surgery Medical University of South Carolina Charleston SC U.S.A
| | - G. Niedt
- Department of Dermatology Columbia University New York NY U.S.A
| | - T. Lazic Strugar
- Department of Dermatology Mount Sinai School of Medicine New York NY U.S.A
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