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Lu J, Li TY, Zhang L, Wang ZK, She JJ, Jia BQ, Qin XG, Ren SY, Yao HL, Huang ZN, Liu DN, Liang H, Shi FY, Li P, Li BP, Zhang XS, Liu KJ, Zheng CH, Huang CM. Comparison of Short-term and Three-year Oncological Outcomes Between Robotic and Laparoscopic Gastrectomy for Gastric Cancer: A Large Multicenter Cohort Study. Ann Surg 2024; 279:808-817. [PMID: 38264902 DOI: 10.1097/sla.0000000000006215] [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] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
OBJECTIVE To compare the short-term and long-term outcomes between robotic gastrectomy (RG) and laparoscopic gastrectomy (LG) for gastric cancer. BACKGROUND The clinical outcomes of RG over LG have not yet been effectively demonstrated. METHODS This retrospective cohort study included 3599 patients with gastric cancer who underwent radical gastrectomy at eight high-volume hospitals in China from January 2015 to June 2019. Propensity score matching was performed between patients who received RG and LG. The primary end point was 3-year disease-free survival (DFS). RESULTS After 1:1 propensity score matching, 1034 pairs of patients were enrolled in a balanced cohort for further analysis. The 3-year DFS in the RG and LG was 83.7% and 83.1% ( P =0.745), respectively, and the 3-year overall survival was 85.2% and 84.4%, respectively ( P =0.647). During 3 years of follow-up, 154 patients in the RG and LG groups relapsed (cumulative incidence of recurrence: 15.0% vs 15.0%, P =0.988). There was no significant difference in the recurrence sites between the 2 groups (all P >0.05). Sensitivity analysis showed that RG had comparable 3-year DFS (77.4% vs 76.7%, P =0.745) and overall survival (79.7% vs 78.4%, P =0.577) to LG in patients with advanced (pathologic T2-4a) disease, and the recurrence pattern within 3 years was also similar between the 2 groups (all P >0.05). RG had less intraoperative blood loss, lower conversion rate, and shorter hospital stays than LG (all P >0.05). CONCLUSIONS For resectable gastric cancer, including advanced cases, RG is a safe approach with comparable 3-year oncological outcomes to LG when performed by experienced surgeons.
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Affiliation(s)
- Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Tai-Yuan Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Li Zhang
- Department of Gastric Surgery, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Zu-Kai Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Jun-Jun She
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Bao-Qing Jia
- Department of General Surgery, The First Medical Centre, PLA General Hospital, Beijing, China
| | - Xin-Gan Qin
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Shuang-Yi Ren
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hong-Liang Yao
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ze-Ning Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Dong-Ning Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Han Liang
- Department of Gastric Surgery, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Fei-Yu Shi
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Peng Li
- Department of General Surgery, The First Medical Centre, PLA General Hospital, Beijing, China
| | - Bo-Pei Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xin-Sheng Zhang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Kui-Jie Liu
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
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Chen YY, Li BP, Wang JF, Wang Y, Luo SS, Lin RJ, Liao XW, Chen JQ. Investigating the prognostic and predictive value of the type II cystatin genes in gastric cancer. BMC Cancer 2023; 23:1122. [PMID: 37978366 PMCID: PMC10657128 DOI: 10.1186/s12885-023-11550-6] [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: 11/15/2022] [Accepted: 10/19/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Accumulating evidence indicates that type II cystatin (CST) genes play a pivotal role in several tumor pathological processes, thereby affecting all stages of tumorigenesis and tumor development. However, the prognostic and predictive value of type II CST genes in GC has not yet been investigated. METHODS The present study evaluated the expression and prognostic value of type II CST genes in GC by using The Cancer Genome Atlas (TCGA) database and the Kaplan-Meier plotter (KM plotter) online database. The type II CST genes related to the prognosis of GC were then screened out. We then validated the expression and prognostic value of these genes by immunohistochemistry. We also used Database for Annotation, Visualization, and Integrated Discovery (DAVID), Gene Multiple Association Network Integration Algorithm (GeneMANIA), Search Tool for the Retrieval of Interacting Genes/Proteins (STRING), nomogram, genome-wide co-expression analysis, and other bioinformatics tools to analyze the value of type II CST genes in GC and the underlying mechanism. RESULTS The data from the TCGA database and the KM plotter online database showed that high expression of CST2 and CST4 was associated with the overall survival (OS) of patients with GC. The immunohistochemical expression analysis showed that patients with high expression of CST4 in GC tissues have a shorter OS than those with low expression of CST4 (HR = 1.85,95%CI: 1.13-3.03, P = 0.015). Multivariate Cox regression analysis confirmed that the high expression level of CST4 was an independent prognostic risk factor for OS. CONCLUSIONS Our findings suggest that CST4 could serve as a tumor marker that affects the prognosis of GC and could be considered as a potential therapeutic target for GC.
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Affiliation(s)
- Ye-Yang Chen
- Department of General Surgery, The First People's Hospital of Yulin, Yulin, China
| | - Bo-Pei Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jun-Fu Wang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ye Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Shan-Shan Luo
- Department of Colorectal Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Ru-Jing Lin
- Department of General Surgery, The People's Hospital of Binyang, Nanning, China
| | - Xi-Wen Liao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jun-Qiang Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
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Zhang W, Hu FJ, Yao CX, Li BP, Zhang M, Yang XM. [Visualization analysis of research hotspots in pathogenesis of diabetic nephropathy in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1075-1081. [PMID: 37482743 DOI: 10.3760/cma.j.cn112150-20230119-00050] [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: 07/25/2023]
Abstract
The aim of this study is to analyze the research hotspots and development trends in the field of pathogenesis of diabetic nephropathy in China from 2013 to 2022. Based on China National Knowledge Infrastructure, Wanfang Data Knowledge Service Platform, China Science and Technology Journal Database, China Biology Medicine disc, Web of Science core collection and PubMed database, the related literatures in the field of pathogenesis of diabetic nephropathy in China from 2013 to 2022, were retrieved to establish the database, and the VOSviewer software was used for bibliometric analysis. A total of 1 664 Chinese and 2 149 English literatures are included in this study. The scientific research results from 2013 to 2022 have shown an overall increasing trend. The research hotspots in the field of pathogenesis of diabetic nephropathy in China are mainly concentrated in Podocytes, Oxidative stress, Inflammation, Renal fibrosis, Urine protein, etc. The frontier hotspots in this field include Biomarkers, Nrf2, Gut microbiota, NLRP3 inflammasome, Apoptosis, MicroRNA, etc. Through visual analysis, the research hotspots and frontier trends of the pathogenesis of diabetic nephropathy in China can be visually presented, and then provide new ideas and directions for the further in-depth research on the pathogenesis of diabetic nephropathy.
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Affiliation(s)
- W Zhang
- Department of Clinical Laboratory, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - F J Hu
- Beijing University of Chinese Medicine, Beijing 100029, China
| | - C X Yao
- Department of Pediatrics, Meishan Women and Children's Hospital, Meishan 620000, China
| | - B P Li
- Department of Clinical Laboratory, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - M Zhang
- Department of Clinical Laboratory, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - X M Yang
- Department of Clinical Laboratory, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
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Wang JF, Zhao K, Chen YY, Qiu Y, Zhu JH, Li BP, Wang Z, Chen JQ. NKCC1 promotes proliferation, invasion and migration in human gastric cancer cells via activation of the MAPK-JNK/EMT signaling pathway. J Cancer 2021; 12:253-263. [PMID: 33391422 PMCID: PMC7738823 DOI: 10.7150/jca.49709] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 06/19/2020] [Accepted: 10/06/2020] [Indexed: 01/05/2023] Open
Abstract
Aims: This study aimed to explore the function of NKCC1 in the proliferation, migration and invasion of Gastric cancer (GC) cells. Materials and Methods: GC data extracted from the database was analyzed using molecular bioinformatics. The expression levels of NKCC1 in tissue samples from GC patients and GC cell lines were determined by Western blotting, qRT-PCR, and immunohistochemistry. Immunofluorescence was used to detect protein localization. The GC cell lines were transfected with NKCC1-shRNA or expression plasmid, and in vitro proliferation, invasion and migration were analyzed by the CCK8, wound healing and transwell tests. Results: The NKCC1 mRNA level was significantly increased in GC tissues than that in normal gastric tissues (P = 0.0195). This phenomenon was further confirmed by the analysis of the TCGA-GTEx database that includes 408 gastric cancer tissues and 211 normal gastric tissues (P < 0.01). Furthermore, the increased level of NKCC1 was significantly correlated with Tumor size (P = 0.039), lymphatic node metastasis (P = 0.035) and tumor stage (P = 0.034). In vitro experiments confirmed that NKCC1 expression was higher in GC cells compared to that in GES-1 cells, and was mainly localized to the cytoplasm and membrane. NKCC1 silencing inhibited GC cell proliferation, invasion, migration and EMT, whereas its overexpression had the opposite effects. Furthermore, NKCC1 overexpression upregulated and activated JNK, and the targeted inhibition of JNK by SP600125 abrogated the pro-metastatic effects of NKCC1. Conclusions: NKCC1 promotes migration and invasion of GC cells by MAPK-JNK/EMT pathway and can be a potential therapeutic target.
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Affiliation(s)
- Jun-Fu Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Kun Zhao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Ye-Yang Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Yue Qiu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Jin-Hui Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Bo-Pei Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Zheng Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Jun-Qiang Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, China
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Li BP, Mao YT, Wang Z, Chen YY, Wang Y, Zhai CY, Shi B, Liu SY, Liu JL, Chen JQ. CLIC1 Promotes the Progression of Gastric Cancer by Regulating the MAPK/AKT Pathways. Cell Physiol Biochem 2018; 46:907-924. [PMID: 29669336 DOI: 10.1159/000488822] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 08/14/2017] [Accepted: 11/23/2017] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND/AIMS Chloride intracellular channel 1 (CLIC1), which is a member of the chloride channel protein family, is associated with various human tumors. Recent studies have shown that CLIC1 is involved in the occurrence and development of gastric cancer (GC). However, the exact mechanism remains unclear in GC. METHODS Effects of CLIC1 on the progression of GC in vivo and in vitro and the potential underlying mechanisms have been investigated by analysing 54 patients with GC, as well as human gastric cell lines SGC-7901 and MGC-803, utilizing proteomics, RT-PCR, Western blotting, flow cytometry, Cell invasion and migration assays and xenograft tumor models. RESULTS Our study shows that CLIC1 knockdown by targeted-siRNA markedly inhibits GC cell invasion and migration and induces apoptosis in vitro. In total, 54 differentially expressed proteins were identified in GC cells SGC-7901 after CLIC1 silencing by isobaric tags for relative isotope labeled and absolute quantitation (iTRAQ) technology, including integrin α1 (ITGα1) and ITGα3. The expression levels of ITGα3, ITGαv, ITGβ1 and Bcl-2 mRNA and protein were decreased significantly in GC cells after CLIC1 knockdown; ITGα1 and Fas were upregulated, but the level of survivin was not significantly different. GC growth and metabolism were decreased in vivo after CLIC1 silencing, but apoptosis was markedly increased. Further study showed that the expression levels of ITGα3, ITGαv and ITGβ1, as well as AKT-phosphorylation, ERK-phosphorylation and p38-phosphorylation, were reduced in vivo after CLIC1 knockdown, while ITGα1 was upregulated. CONCLUSIONS We speculate that CLIC1 may play an important role in the progression of GC, and its mechanism may be related to the regulation of integrin family proteins, which leads to the sequential regulation of the PI3K/AKT, MAPK/ERK and MAPK/p38 pathways.
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Affiliation(s)
- Bo-Pei Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yuan-Tian Mao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhen Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ye-Yang Chen
- Department of General Surgery, The First People's Hospital of Yulin, Yulin, China
| | - Ye Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Chong-Yu Zhai
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Bo Shi
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Si-Yu Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jin-Lu Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jun-Qiang Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Liu Y, Deng F, Li BP, Cai J, Yang SS. [Sorbalgon strips used in elderly intractable epistaxis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1075-1077. [PMID: 29798043 DOI: 10.13201/j.issn.1001-1781.2016.13.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Indexed: 11/12/2022]
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Li BP, Liu JL, Chen JQ, Wang Z, Mao YT, Chen YY. Effects of siRNA-mediated silencing of myeloid cell leukelia-1 on the biological behaviors and drug resistance of gastric cancer cells. Am J Transl Res 2015; 7:2397-2411. [PMID: 26807186 PMCID: PMC4697718] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 10/13/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE This study was to investigate the effects of siRNA mediated silencing of myeloid cell leukelia-1 (Mcl-1) on the biological behaviors and drug resistance of human drug-resistant gastric cancer (GC) cell lines, and to explore the potential mechanisms. METHODS siRNA targeting Mcl-1 mRNA were designed and independently transfected into SGC-7901/VCR and SGC-7901/DDP. Cell proliferation and drug sensitivity were examined by MTT assay. Cell apoptosis and cell cycle were detected by flow cytometry. Cell Invasion and migration abilities were detected by transwell chamber assays. The expressions of drug-resistance-related genes and apoptosis-related proteins were detected by quantitative real-time PCR and Western blot assay, respectively. RESULTS siRNA effectively inhibited the Mcl-1 expression, lowered the proliferation rate (P<0.05), raised the apoptosis rate (P<0.05), and arrested cells in S-phase (P<0.05). After inhibiting Mcl-1, the cell migration and invasion decreased (P<0.05), the resistance to VCR, DDP and 5-Fu was reversed to different extents (P<0.05), TS mRNA expression increased significantly (P<0.05), MDR1 remained unchanged (P>0.05), but DPD and TOP2A decreased significantly (P<0.05). Following Mcl-1 silencing, Bcl-2 was over-expressed in VCR-siRNA group, but the expressions of Fas and survivin reduced markedly (P<0.05); Bcl-2 and Fas expressions decreased significantly in DDP-siRNA group (P<0.05), but survivin expression remained unchanged. CONCLUSION Mcl-1 is implicated in the proliferation, invasion, apoptosis and drug resistance of GC cells, and may be a promising target for the therapy of GC.
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Affiliation(s)
- Bo-Pei Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Jin-Lu Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Jun-Qiang Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Zhen Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Yuan-Tian Mao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Ye-Yang Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi Zhuang Autonomous Region, China
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Abstract
Land surface window emissivity is a key parameter for estimating the longwave radiative budget. The combined radiative transfer model (RM) with neural network (NN) algorithm is utilized to directly estimate the window (8-12 um) emissivity from the brightness temperature of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) with 90 m spatial resolution. Although the estimation accuracy is very high when the broadband emissivity is estimated from AST05 (ASTER Standard Data Product) by using regression method, the accuracy of AST05 is about ± 0.015 for 86 spectra which is determined by the atmosphere correction for ASTER 1B data. The MODTRAN 4 is used to simulate the process of radiance transfer, and the broadband emissivity is directly estimated from the brightness temperature of ASTER 1B data at satellite. The comparison analysis indicates that the RM-NN is more competent to estimate broadband emissivity than other method when the brightness temperatures of band 11, 12, 13, 14 are made as input nodes of dynamic neural network. The estimation average accuracy is about 0.009, and the estimation results are not sensitive to instrument noise. The RM-NN is applied to extract broadband emissivity from an image of ASTER 1B data in China, and the comparison against a classification based multiple bands with 15 m spatial resolution shows that the estimation results from RM-NN are very good.
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Affiliation(s)
- K B Mao
- Key Laboratory of Agri-informatics, MOA, and Hulunber Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Ma PF, Chen JQ, Wang Z, Liu JL, Li BP. Function of chloride intracellular channel 1 in gastric cancer cells. World J Gastroenterol 2012; 18:3070-80. [PMID: 22791942 PMCID: PMC3386320 DOI: 10.3748/wjg.v18.i24.3070] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 02/28/2012] [Accepted: 04/09/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of chloride intracellular channel 1 (CLIC1) on the cell proliferation, apoptosis, migration and invasion of gastric cancer cells.
METHODS: CLIC1 expression was evaluated in human gastric cancer cell lines SGC-7901 and MGC-803 by real time polymerase chain reaction (RT-PCR). Four segments of small interference RNA (siRNA) targeting CLIC1 mRNA and a no-sense control segment were designed by bioinformatics technology. CLIC1 siRNA was selected using Lipofectamine 2000 and transfected transiently into human gastric cancer SGC-7901 and MGC-803 cells. The transfected efficiency was observed under fluorescence microscope. After transfection, mRNA expression of CLIC1 was detected with RT-PCR and Western blotting was used to detect the protein expression. Proliferation was examined by methyl thiazolyl tetrazolium and apoptosis was detected with flow cytometry. Polycarbonate membrane transwell chamber and Matrigel were used for the detection of the changes of invasion and migration of the two cell lines.
RESULTS: In gastric cancer cell lines SGC-7901 and MGC-803, CLIC1 was obviously expressed and CLIC1 siRNA could effectively suppress the expression of CLIC1 protein and mRNA. Proliferation of cells transfected with CLIC1 siRNA3 was enhanced notably, and the highest proliferation rate was 23.3% (P = 0.002) in SGC-7901 and 35.55% (P = 0.001) in MGC-803 cells at 48 h. The G2/M phase proportion increased, while G0/G1 and S phase proportions decreased. The apoptotic rate of the CLIC1 siRNA3 group obviously decreased in both SGC-7901 cells (62.24%, P = 0.000) and MGC-803 cells (52.67%, P = 0.004). Down-regulation of CLIC1 led to the inhibition of invasion and migration by 54.31% (P = 0.000) and 33.62% (P = 0.001) in SGC-7901 and 40.74% (P = 0.000) and 29.26% (P = 0.002) in MGC-803. However, there was no significant difference between the mock group cells and the negative control group cells.
CONCLUSION: High CLIC1 expression can efficiently inhibit proliferation and enhance apoptosis, migration and invasion of gastric cancer cells in vitro. CLIC1 might be a promising target for the treatment of gastric cancer.
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Xu LS, Meng MQH, Li BP. Effects of dielectric values of human body on Specific Absorption Rate (SAR) following 800 MHz radio frequency exposure to ingestible wireless device. Annu Int Conf IEEE Eng Med Biol Soc 2009; 2009:5060-5063. [PMID: 19964854 DOI: 10.1109/iembs.2009.5334263] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In order to assess the compliance of Ingested Wireless Device (IWD) within safety guidelines, the Specific Absorption Rate (SAR) and near fields of IWD in two realistic human body models whose dielectric values are increased from the original by +/-10 and +/-20% are studied using the Finite-Difference Time-Domain (FDTD) method. The radiation characteristics of the IWD in the human body models with original and changed dielectric values are compared. Simulations are carried out at 13 scenarios where the IWD is placed at center positions of abdomens in the two models at the operation frequency of 800 MHz. Results show that variation of radiation intensity near the surface of abdomen is around 1.6 dB within 20% variation of dielectric values at the frequency of 800 MHz. Electric fields in the anterior of the human body models are higher than those in the posterior for all scenarios. SAR values increase as the conductivities of human body tissues increase and usually decrease as the increase of relative permittivities of human body tissues increase. The effect of the dielectric values of human body on SAR is orientation, human body and frequency dependent. An increment up to 20% in conductivities and relative permittivities alone or simultaneously always causes a SAR variation less than 20%. As far as the compliance of safety was concerned, the IWD was safe to be used at the input power less than 9.3 mW according to IEEE safety standards.
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Affiliation(s)
- L S Xu
- Department of electronic engineering of The Chinese University of Hong Kong, China.
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Pilipchuk NS, Akhtyrskiĭ AI, Li BP, Lobik SZ. [The importance of prophylactic fluorographic studies for the timely diagnosis of lung diseases]. Lik Sprava 1993:157-9. [PMID: 8209487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Analysis of the results of fluorographic screening of the population in the city of Kiev and Zaporozhye region suggests unadvisability of carrying out mass chest X-rays examination if the tuberculosis morbidity is less than 30 per 100,000. Also, prophylactic fluorography of the population being performed once in 2-3 years fails to ensure timely diagnosis of bronchitis, bronchiectasis and lung cancer.
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Shevchenko RN, German AK, Li BP, Bondarenko VP, Syrovatka IA, Solodovnik IS, Negreeva TA. [The antitryptic activity of the blood in pulmonary tuberculosis patients who smoke tobacco]. Vrach Delo 1991:95-7. [PMID: 1949750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The general activity of the antitryptic system of the blood was studied in 60 practically healthy persons and in 65 patients with active tuberculosis. A group of tobacco smokers (5 years, 6-10 years) was singled out. It was established that tobacco smoking and pulmonary tuberculosis was accompanied by activation of the antitryptic system which should be considered as a peculiar defensive reaction of the body to increase of the proteolytic activity of enzymes in the lungs. In persons that have been smoking from 6 to 10 years there was a reduction of the general antitryptic activity which can further the development of dystrophic changes in the pulmonary parenchyma and produce an unfavourable effect on the course of specific inflammation.
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13
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German AK, Li BP, Beloblotskiĭ GA, Bondarenko VP, Kostrub LA. [State of body reactivity in recurrent pulmonary tuberculosis]. Probl Tuberk 1981:37-42. [PMID: 7019893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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14
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Li BP, German AK, Kostrub LA, Syrovatko IA. [State of nonspecific protective factors in recurrences of pulmonary tuberculosis]. Vrach Delo 1980:22-5. [PMID: 7467254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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15
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Li BP, Gordienko TS. [Disability evaluation in recurrences of pulmonary tuberculosis]. Vrach Delo 1976:15-7. [PMID: 982969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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16
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German AK, Li BP. [Study of fetal hemoglobin in patients with active pulmonary tuberculosis]. Vrach Delo 1974:100-2. [PMID: 4468638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Sorokotiaga LP, German AK, Li BP. [Characteristics of several functional methods of studying bronchial patency in pulmonary tuberculosis patients]. Vrach Delo 1972; 6:67-9. [PMID: 5043613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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18
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German AK, Li BP, Sorokotiaga LP, Kuz'mina LP. [Moniliasis of the lungs in a pregnant woman with fibrous-cavernous tuberculosis]. Klin Med (Mosk) 1971; 49:125-7. [PMID: 5159913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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19
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German AK, Li BP. [Blood basophils in pulmonary tuberculosis]. Klin Med (Mosk) 1970; 48:22-4. [PMID: 5518590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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20
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Li BP. [Work capacity of patients with lung resection for tuberculosis]. Vrach Delo 1968; 4:29-33. [PMID: 5664601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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