Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (353)
  • Open Access

    ARTICLE

    Flexible Nanopaper Composed of Wood-Derived Nanofibrillated Cellulose and Graphene Building Blocks

    Qing Li1, Ming Dai1, Xueren Qian1, Tian Liu1, Zhenbo Liu1, Yu Liu1, Ming Chen1, Wang He1, Suqing Zeng1, Yu Meng1, Chenchen Dai1, Jing Shen1, Yingtao Liu1, Wenshuai Chen1, Wenbo Liu1,*, Ping Lu2,*

    Journal of Renewable Materials, Vol.9, No.3, pp. 451-461, 2021, DOI:10.32604/jrm.2021.011655 - 14 January 2021

    Abstract Nanopaper has attracted considerable interest in the fields of films and paper research. However, the challenge of integrating the many advantages of nanopaper still remains. Herein, we developed a facile strategy to fabricate multifunctional nanocomposite paper (NGCP) composed of wood-derived nanofibrillated cellulose (NFC) and graphene as building blocks. NFC suspension was consisted of long and entangled NFCs (10–30 nm in width) and their aggregates. Before NGCP formation, NFC was chemically modified with a silane coupling agent to ensure that it could interact strongly with graphene in NGCP. The resulting NGCP samples were flexible and could… More >

  • Open Access

    ARTICLE

    Performance Assessment of Heat Exchangers for Process Heat Integration

    Fenwicks Shombe Musonye1,*, Hiram Ndiritu2, Robert Kinyua3

    Energy Engineering, Vol.118, No.2, pp. 211-224, 2021, DOI:10.32604/EE.2021.013890 - 23 December 2020

    Abstract Pinch Analysis is an attractive solution for reduction of thermal energy costs in thermo-chemical industries. In this approach, maximum internally recoverable heat is determined and a heat exchange network is designed to meet the recovery targets. The thermal performance of a heat exchanger over its lifetime is however a concern to industries. Thermal performance of a heat exchanger is affected by many factors which include the physical properties of the shell and tube materials, and the chemical properties of the heat transfer fluid. In this study, thermal performance of shell and tube heat exchangers designed… More >

  • Open Access

    ARTICLE

    Hospital-specific antibiograms and antibiotic prophylaxis for prostate biopsies: a reexamination of AUA recommendations

    Mark Mann1, Brian P. Calio1, James Ryan Mark1, Raju Chelluri2, Erich Hufnagel3, Adam Reese4, Costas D. Lallas1, Edouard J. Trabulsi1, Thenappan Chandrasekar1, Patrick J. Shenot1, Ethan Halpern5, Leonard G. Gomella1

    Canadian Journal of Urology, Vol.27, No.1, pp. 10099-10104, 2020

    Abstract Introduction: To assess whether standard American Urological Association (AUA) and other recommendations for prostate biopsy prophylaxis provide sufficient coverage of common urinary organisms responsible for post biopsy infections by comparing local antibiograms in Philadelphia-area hospitals.
    Materials and methods: De-identified culture results derived from antibiograms were collected from six academic and community hospitals in the Philadelphia region. Analysis specifically focused on four major bacterial causes of urinary tract infection following prostate biopsy (Escherichia coli (E. coli), Klebsiella pneumoniae, Proteus mirabilis and Enterococcus faecalis) along with commonly recommended antibiotics including fluoroquinolones (FQ’s), trimethoprim/sulfamethoxazole, ceftriaxone, and gentamicin.
    Results: Bacterial sensitivities to… More >

  • Open Access

    ARTICLE

    Overexpression of the Long Noncoding RNA FOXD2-AS1 Promotes Cisplatin Resistance in Esophageal Squamous Cell Carcinoma Through the miR-195/Akt/mTOR Axis

    Huasong Liu*1, Jun Zhang*1, Xiangyu Luo*, Min Zeng*, Liqiang Xu*, Qunxian Zhang*, Hua Liu*, Jialong Guo*, Lanlan Xu

    Oncology Research, Vol.28, No.1, pp. 65-73, 2020, DOI:10.3727/096504019X15656904013079

    Abstract Emerging evidence has demonstrated that long noncoding RNAs (lncRNAs) mediate the development of esophageal squamous cell carcinoma (ESCC) via various pathophysiological pathways. This study explored the impact of the lncRNA FOXD2-AS1 on cisplatin resistance in ESCC and its possible mechanisms. Upregulation of FOXD2-AS was detected in patients with ESCC and ESCC cells that are resistant to cisplatin. In an in vitro assay, knockdown of FOXD2-AS1 noticeably inhibited cell invasion and growth, triggered cell death, and repressed the stimulation of the Akt/mTOR axis in cisplatin-resistant ESCC cells (TE-1/DDP). Conversely, the overexpression of FOXD2-AS1 remarkably increased cell More >

  • Open Access

    ARTICLE

    Changes in DNA Damage Repair Gene Expression and Cell Cycle Gene Expression Do Not Explain Radioresistance in Tamoxifen-Resistant Breast Cancer

    Annemarie E. M. Post*†, Johan Bussink*, Fred C. G. J. Sweep, Paul N. Span*

    Oncology Research, Vol.28, No.1, pp. 33-40, 2020, DOI:10.3727/096504019X15555794826018

    Abstract Tamoxifen-induced radioresistance, reported in vitro, might pose a problem for patients who receive neoadjuvant tamoxifen treatment and subsequently receive radiotherapy after surgery. Previous studies suggested that DNA damage repair or cell cycle genes are involved, and could therefore be targeted to preclude the occurrence of cross-resistance. We aimed to characterize the observed cross-resistance by investigating gene expression of DNA damage repair genes and cell cycle genes in estrogen receptor-positive MCF-7 breast cancer cells that were cultured to tamoxifen resistance. RNA sequencing was performed, and expression of genes characteristic for several DNA damage repair pathways was… More >

  • Open Access

    ARTICLE

    IOX-101 Reverses Drug Resistance Through Suppression of Akt/mTOR/NF-κB Signaling in Cancer Stem Cell-Like, Sphere-Forming NSCLC Cell

    Majed Al Fayi*†, Ahmad Alamri*, Prasanna Rajagopalan*†

    Oncology Research, Vol.28, No.2, pp. 177-189, 2020, DOI:10.3727/096504019X15746768080428

    Abstract Drug discovery research to fight lung cancer is incessantly challenged by drug resistance. In this study, we used drug-resistant lung cancer stem like cells (A549-CS) to compare the efficacy of standard drugs like cisplatin (DDP) and gemcitabine (GEM) with a novel arylidene derivative IOX-101. A549-CS was derived from regular A549 cells by growing in special media. Resistance proteins were detected using Western blotting. Cell proliferations were assessed by MTT assay. Cytokine release was enumerated using enzyme-linked immunosorbent assay. The effect of drugs on apoptosis and cell cycle was studied with flow cytometry protocols. Apoptosis-related proteins,… More >

  • Open Access

    ARTICLE

    Fzd2 Contributes to Breast Cancer Cell Mesenchymal-Like Stemness and Drug Resistance

    Ping Yin*, Wei Wang*, Jian Gao, Yu Bai*, Zhuo Wang*, Lei Na*, Yu Sun*, Chenghai Zhao*

    Oncology Research, Vol.28, No.3, pp. 273-284, 2020, DOI:10.3727/096504020X15783052025051

    Abstract Cancer cell stemness is responsible for cancer relapse, distal metastasis, and drug resistance. Here we identified that Frizzled 2 (Fzd2), one member of Wnt receptor Frizzled family, induced human breast cancer (BC) cell stemness via noncanonical Wnt pathways. Fzd2 was overexpressed in human BC tissues, and Fzd2 overexpression was associated with an unfavorable outcome. Fzd2 knockdown (KD) disturbed the mesenchymallike phenotype, migration, and invasion of BC cells. Moreover, Fzd2 KD impaired BC cell mammosphere formation, reduced Lgr5+ BC cell subpopulation, and enhanced sensitivity of BC cells to chemical agents. Mechanistically, Fzd2 modulated and bound with More >

  • Open Access

    ARTICLE

    The AKT/GSK3β-Mediated Slug Expression Contributes to Oxaliplatin Resistance in Colorectal Cancer via Upregulation of ERCC1

    Wei Wei*1, Xiao-Dong Ma†1, Guan-Min Jiang, Bin Shi§, Wen Zhong, Chun-Lei Sun§, Liang Zhao*, Yan-Jiao Hou*, Hao Wang*

    Oncology Research, Vol.28, No.4, pp. 423-438, 2020, DOI:10.3727/096504020X15877284857868

    Abstract Although oxaliplatin serves as one of the first-line drugs prescribed for treating colorectal cancer (CRC), the therapeutic effect is disappointing due to drug resistance. So far, the molecular mechanisms mediating oxaliplatin resistance remain unclear. In this study, we found the chemoresistance in oxaliplatin-resistant HCT116 cells (HCT116/OXA) was mediated by the upregulation of ERCC1 expression. In addition, the acquisition of resistance induced epithelial–mesenchymal transition (EMT) as well as the Slug overexpression. On the contrary, Slug silencing reversed the EMT phenotype, decreased ERCC1 expression, and ameliorated drug resistance. Further mechanistical studies revealed the enhanced Slug expression resulted More >

  • Open Access

    REVIEW

    CD13: A Key Player in Multidrug Resistance in Cancer Chemotherapy

    Qie Guo*, Xiao Li*, Meng-Na Cui*, Jia-Lin Sun*, Hong-Yan Ji*, Bei-Bei Ni*, Mei-Xing Yan

    Oncology Research, Vol.28, No.5, pp. 533-540, 2020, DOI:10.3727/096504020X15919605976853

    Abstract Cancer is one of the most serious diseases that are harmful to human health. Systemic chemotherapy is an optimal therapeutic strategy for the treatment of cancer, but great difficulty has been encountered in its administration in the form of multidrug resistance (MDR). As an enzyme on the outer cell surface, CD13 is documented to be involved in the MDR development of tumor cells. In this review, we will focus on the role of CD13 in MDR generation based on the current evidence. More >

  • Open Access

    ARTICLE

    Pyrotinib Sensitizes 5-Fluorouracil-Resistant HER2+ Breast Cancer Cells to 5-Fluorouracil

    Jianing Yi*, Shuai Chen*, Pingyong Yi, Jinlin Luo*, Meng Fang*, Yang Du*, Lianhong Zou*, Peizhi Fan*

    Oncology Research, Vol.28, No.5, pp. 519-831, 2020, DOI:10.3727/096504020X15960154585410

    Abstract 5-Fluorouracil (5-FU) is a widely used chemotherapeutic agent for breast cancer. However, acquired chemoresistance leads to a loss of its efficacy; methods to reverse are urgently needed. Some studies have shown that pyrotinib, an ErbB receptor tyrosine kinase inhibitor, is effective against HER2+ breast cancer. However, whether pyrotinib sensitizes 5-FU-resistant breast cancer cells to 5-FU is unknown. We hypothesized that the combination of pyrotinib and 5-FU would show synergistic antitumor activity, and pyrotinib could reverse 5-FU resistance in HER2+ breast cancer cells in vitro and in vivo. Our data showed that pyrotinib inhibited the growth… More >

Displaying 221-230 on page 23 of 353. Per Page