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  1. Article ; Online: Chest Imaging Tests versus RT-PCR Testing for COVID-19 Pneumonia: There Is No Best, Only a Better Fit.

    Meng, Xianchun / Liu, Yuying

    Radiology

    2020  Volume 297, Issue 3, Page(s) E345

    MeSH term(s) Betacoronavirus ; COVID-19 ; COVID-19 Testing ; China ; Clinical Laboratory Techniques ; Coronavirus ; Coronavirus Infections/diagnosis ; Humans ; Pandemics ; Pneumonia, Viral/epidemiology ; Reverse Transcriptase Polymerase Chain Reaction ; SARS-CoV-2 ; Tomography, X-Ray Computed
    Keywords covid19
    Language English
    Publishing date 2020-10-20
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 80324-8
    ISSN 1527-1315 ; 0033-8419
    ISSN (online) 1527-1315
    ISSN 0033-8419
    DOI 10.1148/radiol.2020203792
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Comment on 'Neutrophils: driving progression and poor prognosis in hepatocellular carcinoma?'

    Liu, Yuying / Meng, Xianchun

    British journal of cancer

    2018  Volume 119, Issue 6, Page(s) 779–780

    MeSH term(s) Carcinoma, Hepatocellular ; Disease Progression ; Humans ; Liver Neoplasms ; Neutrophils ; Prognosis
    Language English
    Publishing date 2018-09-12
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 80075-2
    ISSN 1532-1827 ; 0007-0920
    ISSN (online) 1532-1827
    ISSN 0007-0920
    DOI 10.1038/s41416-018-0241-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Clean technology investment considering synergistic effects: a case from the steel sintering process

    Guo, Jianxin / Tan, Xianchun / Meng, Xiaoyan / Li, Yanping

    Environ Dev Sustain. 2022 Dec., v. 24, no. 12 p.13748-13770

    2022  

    Abstract: The dual objectives of air pollutant control and carbon emission reduction highlight the importance of determining investment methods in end-of-pipe (EOP) technology to achieve cost optimization goals. This paper aims to bridge the gap between the ... ...

    Abstract The dual objectives of air pollutant control and carbon emission reduction highlight the importance of determining investment methods in end-of-pipe (EOP) technology to achieve cost optimization goals. This paper aims to bridge the gap between the cooperative control theory and practical applications. We propose a framework using optimal control theory to obtain a technology investment path while considering the two-way synergy effect. To verify the effectiveness of the model, we considered three typical technologies in ultra-low emission transformation of a certain steel process. The used case in the study set the emission reduction of [Formula: see text], [Formula: see text] and [Formula: see text] as 55%, 70% and 80% compared to their basic cases, respectively. Considering the synergy effect, the peaks of the installed capacity of three technologies including carbon capture, denitrification, and desulfurization were obtained as 0.12 million tons, 5 million tons, and 15 million tons. Also, the related net emissions for the pollutant were 300, 400, and 1000 million tons. We found that terminal desulfurization and denitrification technology increase [Formula: see text] emissions accounting for about 2% due to the negative synergy. However, the negative emission contribution from carbon abatement technology is greater accounting for about 40%. We also found that different policy objectives and emission factors have a greater impact on the investment path. These results demonstrate that we cannot completely ignore the negative emission reduction effects when adopting these EOP technologies. It is necessary to reevaluate these negative effects to the greatest extent so as to develop a more reasonable technological path, which is a guarantee for achieving the expected emission reduction targets.
    Keywords air pollutants ; carbon ; denitrification ; desulfurization ; issues and policy ; models ; steel ; sustainable technology
    Language English
    Dates of publication 2022-12
    Size p. 13748-13770.
    Publishing place Springer Netherlands
    Document type Article ; Online
    ZDB-ID 1438730-x
    ISSN 1387-585X
    ISSN 1387-585X
    DOI 10.1007/s10668-021-02009-4
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Arenobufagin regulates the p62-Keap1-Nrf2 pathway to induce autophagy-dependent ferroptosis in HepG2 cells.

    Yang, YuTing / Liu, Chun / Wang, Meng / Cheng, Hui / Wu, Huan / Luo, ShengYong / Zhang, Mei / Duan, XianChun / Li, Qinglin

    Naunyn-Schmiedeberg's archives of pharmacology

    2024  

    Abstract: Hepatocellular carcinoma (HCC) is the most prevalent type of primary liver cancer, accounting for the overwhelming majority of malignant liver tumors. Therefore, how to effectively prevent and cure HCC has become a research hotspot. Many studies have ... ...

    Abstract Hepatocellular carcinoma (HCC) is the most prevalent type of primary liver cancer, accounting for the overwhelming majority of malignant liver tumors. Therefore, how to effectively prevent and cure HCC has become a research hotspot. Many studies have shown that arenobufagin can induce apoptosis, ferroptosis, and autophagy of tumor cells. An increasing number of studies have shown that autophagy is closely linked to ferroptosis. In this study, HepG2 cells and BALB/c nude mice were used as research objects to explore the effect and preliminary mechanism of hepatoma cell autophagy and ferroptosis induced by arenobufagin. We found that arenobufagin can significantly inhibit tumor growth in vivo, and interestingly, we found that arenobufagin inhibited ferroptosis-related proteins Nrf2 and COX-2 in a dose-dependent manner and decreased the levels of reduced glutathione (GSH) and superoxide dismutase (T-SOD) in tissues, while increased the level of reduced malondialdehyde (MDA). In addition, we found that arenobufagin increased the levels of COX-2 and MDA in cells, decreased the levels of Nrf2, GSH, and T-SOD, increased the levels of tissue reactive oxygen species (ROS) and lipid ROS in a dose-dependent manner, and promoted ferroptosis in HepG2 cells. HepG2 cells were preprotected by autophagy inhibitor chloroquine (CQ) and ferroptosis inhibitor deferoxamine (DFO), and then treated with arenobufagin. It was found that CQ partially reversed the changes of COX-2 and Nrf2 expression and lipid peroxidation induced by arenobufagin-induced autophagy and HepG2 cells. Interestingly, CQ partially reversed the inhibition of arenobufagin on cytoplasmic junction protein (Keap1) and heme oxygenase-1 (HO-1) in p62-Keap1-Nrf2 pathway. At the same time, we found that the effect of arenobufagin on oxidative stress of HepG2 cells overexpressed by Nrf2 was significantly less than that of the control group. To sum up, arenobufagin promotes autophagy-dependent ferroptosis of HepG2 cells by inducing autophagy and regulating p62-Keap1-Nrf2 pathway. It is suggested that arenobufagin can be used as a potential intervention therapy.
    Language English
    Publishing date 2024-01-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 121471-8
    ISSN 1432-1912 ; 0028-1298
    ISSN (online) 1432-1912
    ISSN 0028-1298
    DOI 10.1007/s00210-023-02916-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: N6-methyladenosine reader hnRNPA2B1 recognizes and stabilizes NEAT1 to confer chemoresistance in gastric cancer.

    Wang, Jiayao / Zhang, Jiehao / Liu, Hao / Meng, Lingnan / Gao, Xianchun / Zhao, Yihan / Wang, Chen / Gao, Xiaoliang / Fan, Ahui / Cao, Tianyu / Fan, Daiming / Zhao, Xiaodi / Lu, Yuanyuan

    Cancer communications (London, England)

    2024  Volume 44, Issue 4, Page(s) 469–490

    Abstract: Background: Chemoresistance is a major cause of treatment failure in gastric cancer (GC). Heterogeneous nuclear ribonucleoprotein A2B1 (hnRNPA2B1) is an N6-methyladenosine (m: Methods: The expression of hnRNPA2B1 among public datasets were analyzed ... ...

    Abstract Background: Chemoresistance is a major cause of treatment failure in gastric cancer (GC). Heterogeneous nuclear ribonucleoprotein A2B1 (hnRNPA2B1) is an N6-methyladenosine (m
    Methods: The expression of hnRNPA2B1 among public datasets were analyzed and validated by quantitative PCR (qPCR), Western blotting, immunofluorescence, and immunohistochemical staining. The biological functions of hnRNPA2B1 in GC chemoresistance were investigated both in vitro and in vivo. RNA sequencing, methylated RNA immunoprecipitation, RNA immunoprecipitation, and RNA stability assay were performed to assess the association between hnRNPA2B1 and the binding RNA. The role of hnRNPA2B1 in maintenance of GC stemness was evaluated by bioinformatic analysis, qPCR, Western blotting, immunofluorescence, and sphere formation assays. The expression patterns of hnRNPA2B1 and downstream regulators in GC specimens from patients who received adjuvant chemotherapy were analyzed by RNAscope and multiplex immunohistochemistry.
    Results: Elevated expression of hnRNPA2B1 was found in GC cells and tissues, especially in multidrug-resistant (MDR) GC cell lines. The expression of hnRNPA2B1 was associated with poor outcomes of GC patients, especially in those who received 5-fluorouracil treatment. Silencing hnRNPA2B1 effectively sensitized GC cells to chemotherapy by inhibiting cell proliferation and inducing apoptosis both in vitro and in vivo. Mechanically, hnRNPA2B1 interacted with and stabilized long noncoding RNA NEAT1 in an m
    Conclusion: Our findings indicated that hnRNPA2B1 interacts with and stabilizes lncRNA NEAT1, which contribute to the maintenance of stemness property via Wnt/β-catenin pathway and exacerbate chemoresistance in GC.
    MeSH term(s) Humans ; Stomach Neoplasms/metabolism ; Drug Resistance, Neoplasm/genetics ; Cell Line, Tumor ; Heterogeneous-Nuclear Ribonucleoproteins ; RNA/pharmacology
    Chemical Substances Heterogeneous-Nuclear Ribonucleoproteins ; RNA (63231-63-0)
    Language English
    Publishing date 2024-03-21
    Publishing country United States
    Document type Journal Article
    ISSN 2523-3548
    ISSN (online) 2523-3548
    DOI 10.1002/cac2.12534
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: LncRNA HCG11 Facilitates Nasopharyngeal Carcinoma Progression Through Regulating miRNA-490-3p/MAP3K9 Axis.

    Zheng, Jian / Zhao, Zhuochen / Ren, Huijun / Wang, Yongfeng / Meng, Xianchun / Zhang, Wenjing / Zhang, Cai / Ming, Liang / Lu, Xiubo

    Frontiers in oncology

    2022  Volume 12, Page(s) 872033

    Abstract: Purpose: Long noncoding RNAs (LncRNAs) play complex but important roles in the progression of various tumors. This study aimed to elucidate the functional mechanisms of the HLA complex group 11 (HCG11) in nasopharyngeal carcinoma (NPC).: Patients and ... ...

    Abstract Purpose: Long noncoding RNAs (LncRNAs) play complex but important roles in the progression of various tumors. This study aimed to elucidate the functional mechanisms of the HLA complex group 11 (HCG11) in nasopharyngeal carcinoma (NPC).
    Patients and methods: HCG11 levels in NPC specimens were determined by fluorescence
    Results: HCG11 was highly expressed in NPC tissues and was positively associated with tumor stage, lymphatic metastasis, and poor prognosis. Functionally, HCG11 knockdown inhibited proliferation and migration and induced apoptosis of NPC cells. Mechanistically, miR-490-3p is a direct target of HCG11, oncogenic functions of HCG11 in NPC cell proliferation and migration can be partially reversed by the miR-490-3p inhibitor. HCG11 significantly increased mitogen-activated protein kinase MAPK kinase 9 (MAP3K9) levels by inhibiting miR-490-3p.
    Conclusion: HCG11 facilitates NPC progression
    Language English
    Publishing date 2022-04-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2022.872033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: [Gene cloning, heterologous expression and activity identification of latroeggtoxin-Ⅵ].

    Yan, Shuai / Tang, Xiaochao / Yu, Dianmei / Wang, Haiyan / Meng, Wenwen / Tang, Pingping / Wang, Xianchun

    Sheng wu gong cheng xue bao = Chinese journal of biotechnology

    2021  Volume 37, Issue 2, Page(s) 635–645

    Abstract: One of the distinct characters of Latrodectus tredecimguttatus is that its toxic components exist not only in the venomous glands, but also in the tissues outside the venomous glands and even in the eggs. Investigation on the toxins outside the venomous ... ...

    Abstract One of the distinct characters of Latrodectus tredecimguttatus is that its toxic components exist not only in the venomous glands, but also in the tissues outside the venomous glands and even in the eggs. Investigation on the toxins outside the venomous glands can deepen our understanding of spider toxins and discover new lead molecules with important application prospects. In order to explore the low-abundance proteinaceous toxins in the L. tredecimguttatus eggs, we used bioinformatic strategies to mine a gene sequence encoding a peptide toxin from the transcriptome of L. tredecimguttatus eggs, and then heterologously expressed the gene successfully with a 3'-RACE combined with nest PCR strategy. Biological activity analyses indicated that the expressed peptide toxin, named latroeggtoxin-Ⅵ (LETX-Ⅵ), could inhibit Na⁺ channel currents in ND7/23 cells and promote dopamine release from PC12 cells, without obvious toxicity against Periplaneta americana and bacteria as well as fungi including Staphylococcus aureus and Candida albicans, demonstrating that LETX-Ⅵ is a mammal-specific neurotoxin with a potential application prospect in development of the tool reagents for neurobiological study and the drugs for treating related diseases.
    MeSH term(s) Animals ; Arthropod Proteins/genetics ; Black Widow Spider/genetics ; Cloning, Molecular ; Rats ; Spider Venoms/genetics ; Transcriptome
    Chemical Substances Arthropod Proteins ; Spider Venoms
    Language Chinese
    Publishing date 2021-03-01
    Publishing country China
    Document type Journal Article
    ZDB-ID 1042206-7
    ISSN 1872-2075 ; 1042-749X
    ISSN (online) 1872-2075
    ISSN 1042-749X
    DOI 10.13345/j.cjb.200245
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: An interprovincial input-output database distinguishing firm ownership in China from 1997 to 2017.

    Chen, Quanrun / Gao, Yuning / Pan, Chen / Xu, Dingyi / Cai, Kun / Guan, Dabo / He, Qi / Li, Shantong / Liu, Wanqi / Meng, Bo / Wang, Zhi / Wang, Yang / Xu, Xianchun / Yang, Peihao / Zhang, Meichen / Zhou, Yuanqi

    Scientific data

    2023  Volume 10, Issue 1, Page(s) 293

    Abstract: Input-Output (IO) data describing supply-demand relationships between buyers and sellers for goods and services within an economy have been used not only in economics but also in scientific, environmental, and interdisciplinary research. However, most ... ...

    Abstract Input-Output (IO) data describing supply-demand relationships between buyers and sellers for goods and services within an economy have been used not only in economics but also in scientific, environmental, and interdisciplinary research. However, most conventional IO data are highly aggregated, resulting in challenges for researchers and practitioners who face complex issues in large countries such as China, where firms within the same IO sector may have significant differences in technologies across subnational regions and different ownerships. This paper is the first attempt to compile China's interprovincial IO (IPIO) tables with separate information for mainland China-, Hong Kong, Macau, Taiwan-, and foreign-owned firms inside each province/industry pair. To do this, we collect relevant Chinese economic census data, firm surveys, product level Custom trade statistics, and firm value-added tax invoices and consistently integrate them into a 42-sector, 31-province IO account covering 5 benchmark years between 1997-2017. This work provides a solid foundation for a diverse range of innovative IO-based research in which firm heterogeneity information about location and ownership matters.
    Language English
    Publishing date 2023-05-18
    Publishing country England
    Document type Dataset ; Journal Article
    ZDB-ID 2775191-0
    ISSN 2052-4463 ; 2052-4463
    ISSN (online) 2052-4463
    ISSN 2052-4463
    DOI 10.1038/s41597-023-02183-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Antigen clearance at the peak of the primary immune response induces experimental autoimmune encephalomyelitis.

    Zheng, Peiguo / Wei, Xufeng / Cao, Xuezhen / Ma, Panhong / Dong, Rui / Tang, Hongwei / Meng, Xianchun / Liu, Xinjing / Zhang, Cai / Zhang, Shuijun / Ming, Liang

    European journal of immunology

    2023  Volume 53, Issue 3, Page(s) e2250122

    Abstract: Autoimmune demyelinating diseases can be induced by an immune response against myelin peptides; however, the exact mechanism underlying the development of such diseases remains unclear. In experimental autoimmune encephalomyelitis, we found that the ... ...

    Abstract Autoimmune demyelinating diseases can be induced by an immune response against myelin peptides; however, the exact mechanism underlying the development of such diseases remains unclear. In experimental autoimmune encephalomyelitis, we found that the clearance of exogenous myelin antigen at the peak of the primary immune response is key to the pathogenesis of the disease. The generation of effector T cells requires continuous antigen stimulation, whereas redundant antigen traps and exhausts effector T cells in the periphery, which induces resistance to the disease. Moreover, insufficient antigenic stimulation fails to induce disease efficiently owing to insufficient numbers of effector T cells. When myelin antigen is entirely cleared, the number of effector T cells reaches a peak, which facilitates infiltration of more effector T cells into the central nervous system. The peripheral antigen clearance initiates the first wave of effector T cell entry into the central nervous system and induces chronic inflammation. The inflamed central nervous system recruits the second wave of effector T cells that worsen inflammation, resulting in loss of self-tolerance. These findings provide new insights into the mechanism underlying the development of autoimmune demyelinating diseases, which may potentially impact future treatments.
    MeSH term(s) Animals ; Encephalomyelitis, Autoimmune, Experimental ; T-Lymphocytes ; Central Nervous System/pathology ; Inflammation ; Immunity
    Language English
    Publishing date 2023-01-19
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120108-6
    ISSN 1521-4141 ; 0014-2980
    ISSN (online) 1521-4141
    ISSN 0014-2980
    DOI 10.1002/eji.202250122
    Database MEDical Literature Analysis and Retrieval System OnLINE

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