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  • Open Access

    ARTICLE

    A Polyp Detection Method Based on FBnet

    Jingjing Wan1, Taiyue Chen2, *, Bolun Chen2, 3, *, Yongtao Yu2, Yiyun Sheng2, Xinggang Ma1

    CMC-Computers, Materials & Continua, Vol.63, No.3, pp. 1263-1272, 2020, DOI:10.32604/cmc.2020.010098 - 30 April 2020

    Abstract The incidence of colorectal cancer (CRC) in China has increased in recent years. The mortality rate of CRC has become one of the highest among all cancers; CRC increasingly affects the health and quality of people’s lives. However, due to the insufficiency of medical resources in China, the workload on medical doctors has further increased. In the past few decades, the adult CRC mortality and morbidity rate dropped sharply, mainly because of CRC screening and removal of adenomatous polyps. However, due to the differences in polyp itself and the skills of endoscopists, the detection rate… More >

  • Open Access

    ARTICLE

    Improved Culture Media for Embryogenic Callus Generation in Sorghum [Sorghum bicolor (L.) Moench]

    Paul Chege1,2, Andrea Palágyi2, Csaba Lantos2, Erzsébet Kiss1, János Pauk2,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 111-119, 2020, DOI:10.32604/phyton.2020.07554 - 01 March 2020

    Abstract Many attempts on optimization of sorghum [Sorghum bicolor (L.) Moench] tissue culture induction media have been made, but the culture system remains with some bottlenecks compared to that of other crops. This study aimed at assessing the suitability of various induction media to produce embryogenic callus (yellow and friable) with high induction rates and reduced phenolic exudation. The six culture medium modifications: 3 based on Murashige and Skoog (MS) medium and one each based on Chu N6, Gamborg B5 and 190-2 media respectively were applied in the culture of mature embryos from 10 sorghum genotypes. Although… More >

  • Open Access

    ARTICLE

    Median Filtering Forensics Scheme for Color Images Based on Quaternion Magnitude-Phase CNN

    Jinwei Wang1, *, Yang Zhang1

    CMC-Computers, Materials & Continua, Vol.62, No.1, pp. 99-112, 2020, DOI:10.32604/cmc.2020.04373

    Abstract In the paper, a convolutional neural network based on quaternion transformation is proposed to detect median filtering for color images. Compared with conventional convolutional neural network, color images can be processed in a holistic manner in the proposed scheme, which makes full use of the correlation between RGB channels. And due to the use of convolutional neural network, it can effectively avoid the one-sidedness of artificial features. Experimental results have shown the scheme’s improvement over the state-of-the-art scheme on the accuracy of color image median filtering detection. More >

  • Open Access

    ARTICLE

    Digital Forensics for Recoloring via Convolutional Neural Network

    Zhangyi Shen1, Feng Ding2, *, Yunqing Shi1

    CMC-Computers, Materials & Continua, Vol.62, No.1, pp. 1-16, 2020, DOI:10.32604/cmc.2020.08291

    Abstract As a common medium in our daily life, images are important for most people to gather information. There are also people who edit or even tamper images to deliberately deliver false information under different purposes. Thus, in digital forensics, it is necessary to understand the manipulating history of images. That requires to verify all possible manipulations applied to images. Among all the image editing manipulations, recoloring is widely used to adjust or repaint the colors in images. The color information is an important visual information that image can deliver. Thus, it is necessary to guarantee… More >

  • Open Access

    ARTICLE

    Robust Color Fastness of Dyed Silk Fibroin Film By Coupling Modification Dyeing with Aniline Diazonium Salt

    ZONGQIAN WANG, HAIWEI YANG, JIAN XING, ZHI LIU*

    Journal of Polymer Materials, Vol.36, No.2, pp. 149-159, 2019, DOI:10.32381/JPM.2019.36.02.4

    Abstract Colored silk fibroin (SF) film can change the proportion of transmitted light composition and therefore shows potential application in optoelectronics area. However, few methods are reported for the preparation of colored SF film with good color fastness. Herein, colored SF film was prepared by coupling modification dyeing (CM-dyeing) of SF tyrosine residues in solution. SF film shows excellent color fastness due to the formation of the azo covalent bond formed by electrophilic substitution reaction between SF tyrosine residues and aniline diazonium salt. Furthermore, compared with the undyed film, the dyed SF film is effectively preserved More >

  • Open Access

    ARTICLE

    Long Noncoding RNA XIST Regulates miR-137–EZH2 Axis to Promote Tumor Metastasis in Colorectal Cancer

    Xingxiang Liu*†, Lin Cui, Dong Hua*‡

    Oncology Research, Vol.27, No.1, pp. 99-106, 2019, DOI:10.3727/096504018X15195193936573

    Abstract We aimed to investigate the significant role of long noncoding RNA X inactive specific transcript (XIST) in regulating tumor metastasis in colorectal cancer (CRC), as well as its possible mechanism. Expression of lncRNA XIST in CRC tissues and CRC cells was detected. CRC cells were transfected with pc-XIST, blank control si-XIST, or si-control, and then the effects of lncRNA XIST on CRC cell migration and invasion were investigated, along with the interaction between lncRNA XIST and miR-137. lncRNA XIST was upregulated in CRC tissues. Compared with HT29 cells that had low metastatic potential, XIST was… More >

  • Open Access

    ARTICLE

    Silencing Artemis Enhances Colorectal Cancer Cell Sensitivity to DNA-Damaging Agents

    Hai Liu*, Xuanxuan Wang*, Aihua Huang, Huaping Gao, Yikan Sun§, Tingting Jiang*, Liming Shi*, Xianjie Wu, Qinghua Dong#, Xiaonan Sun*

    Oncology Research, Vol.27, No.1, pp. 29-38, 2019, DOI:10.3727/096504018X15179694020751

    Abstract Artemis is a key protein of NHEJ (nonhomologous end joining), which is the major pathway for the repair of IR-induced DSBs in mammalian cells. However, the expression of Artemis in tumors and the influence of silencing Artemis on tumor sensitivity to radiation have not been investigated fully. In this study, we investigated how the expression levels of Artemis may affect the treatment outcome of radiotherapy and chemotherapy in colorectal cancer cells. First, we found that the expression of Artemis is strong in some human rectal cancer samples, being higher than in adjacent normal tissues using… More >

  • Open Access

    ARTICLE

    Liquiritigenin Inhibits Colorectal Cancer Proliferation, Invasion, and Epithelial-to-Mesenchymal Transition by Decreasing Expression of Runt-Related Transcription Factor 2

    Fan-Chun Meng, Jun-Kai Lin

    Oncology Research, Vol.27, No.2, pp. 139-146, 2019, DOI:10.3727/096504018X15185747911701

    Abstract Inhibition of tumor metastasis is one of the most important purposes in colorectal cancer (CRC) treatment. This study aimed to explore the effects of liquiritigenin, a flavonoid extracted from the roots of Glycyrrhiza uralensis Fisch, on HCT116 cell proliferation, invasion, and epithelial-to-mesenchymal transition (EMT). We found that liquiritigenin significantly inhibited HCT116 cell proliferation, invasion, and the EMT process, but had no influence on cell apoptosis. Moreover, liquiritigenin remarkably reduced the expression of runt-related transcription factor 2 (Runx2) in HCT116 cells. Overexpression of Runx2 obviously reversed the liquiritigenininduced invasion and EMT inhibition. Furthermore, liquiritigenin inactivated the More >

  • Open Access

    ARTICLE

    PAR2 Inhibition Enhanced the Sensitivity of Colorectal Cancer Cells to 5-FU and Reduced EMT Signaling

    Qiuying Quan*1, Fengyun Zhong†1, Xinwei Wang, Kai Chen§, Lingchuan Guo*

    Oncology Research, Vol.27, No.7, pp. 779-788, 2019, DOI:10.3727/096504018X15442985680348

    Abstract The aim of this study was to investigate the underlying mechanisms that transforming growth factor- (TGF- )-mediated epithelial-to-mesenchymal transition (EMT) in tumor cells contributes to 5-FU resistance. A series of experiments involving cell viability and caspase activity analyses, siRNA transfection, RNA isolation, and quantitative-PCR (qPCR) assay, cell migration analysis, Western blotting analysis of total protein and membrane protein were performed in this study. Mouse xenograft model was used to determine the effect of the PAR2 inhibitor in vivo. In this study, we found that protease-activated receptor 2 (PAR2) induction in 5-FU therapy is correlated with… More >

  • Open Access

    ARTICLE

    miR-455 Functions as a Tumor Suppressor Through Targeting GATA6 in Colorectal Cancer

    Hua Yunqi*1, Yin Fangrui†1, Yang Yongyan*, Jin Yunjian*, Zhang Wenhui*, Cao Kun*, Li Min*, Liu Xianfeng*, Ba Caixia*

    Oncology Research, Vol.27, No.3, pp. 311-316, 2019, DOI:10.3727/096504018X15220579006875

    Abstract Emerging evidence indicates that microRNAs (miRNAs) are often aberrantly expressed in human cancers. Meanwhile, the importance of miRNAs in regulating multiple cellular biological processes has been appreciated. The aim of this study was to investigate the significance of miR-455 and identify its possible mechanism in regulating colorectal cancer (CRC) progression. We found that the expression of miR-455 was sharply reduced in CRC tissues and cell lines. Importantly, the low expression of miR-455 was associated with poor overall survival of CRC patients. Overexpression of miR-455 in CRC cell lines significantly inhibited cell proliferation and migration in More >

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