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Search Results (6)
  • Open Access

    REVIEW

    Molecular regulation mechanism of oocyte maturation in beef cattle

    BINWU BAO, JINPENG WANG, YANXIA LI, FEN FENG, ZHONGXIANG JI, ZHUOMA LUORENG*, XINGPING WANG*

    BIOCELL, Vol.47, No.7, pp. 1509-1518, 2023, DOI:10.32604/biocell.2023.028646 - 21 June 2023

    Abstract Bovine oocytes are one of the indispensable cells in cattle reproduction and have become a research hot spot in cattle reproduction in recent years. The maturation process of oocytes is mainly regulated by enzymes, hormones, cytokines, and other molecules. The factors affecting cattle oocyte maturation have been previously studied to clarify the molecular mechanisms of cattle oocyte maturation. In this review article, phospholipid protein-3-kinase/protein kinase B, mitogen-activated protein kinase/extracellular signal-regulated kinase, Janus kinase/signal transducer and activator of transcription, epidermal growth factor receptor/extracellular signal-regulated kinase, and other signaling pathways related to oocyte maturation are discussed. In More >

  • Open Access

    REVIEW

    Regulation mechanisms of endocrine disruptors on vasodilation and vasoconstriction: Insights from ex vivo models

    MARGARIDA LORIGO1,2, ELISA CAIRRAO1,2,*

    BIOCELL, Vol.46, No.6, pp. 1383-1389, 2022, DOI:10.32604/biocell.2022.018895 - 07 February 2022

    Abstract Cardiovascular diseases (CVD) are one of the leading causes of death worldwide. The knowledge and understanding of CVD are based on the study of vascular physiology and how the smooth muscle cells and tissues perform their different functions. Exposure to endocrine disruptors (EDCs), such as phytoestrogens, polycyclic aromatic hydrocarbons, flame retardants, plasticizers, pesticides, and cosmetics, is an integral and fundamental part of human exposure. Humans are exposed to EDCs by multiple pathways including air, food, water, and consumer products. However, this exposure can lead to several adverse effects on human health, including on the cardiovascular… More >

  • Open Access

    REVIEW

    Emerging environmental stressors and oxidative pathways in marine organisms: Current knowledge on regulation mechanisms and functional effects

    MAURA BENEDETTI, MARIA ELISA GIULIANI, MARICA MEZZELANI, ALESSANDRO NARDI, LUCIA PITTURA, STEFANIA GORBI, FRANCESCO REGOLI

    BIOCELL, Vol.46, No.1, pp. 37-49, 2022, DOI:10.32604/biocell.2022.017507 - 28 September 2021

    Abstract Oxidative stress is a critical condition derived from the imbalance between the generation of reactive oxygen species and the sophisticated network of antioxidant mechanisms. Several pollutants and environmental factors can affect this system through connected mechanisms, indirect relationships, and cascade effects from pre-transcriptional to catalytic level, by either enhancing intracellular ROS formation or impairing antioxidant defenses. This review summarizes the current knowledge on the pro-oxidant challenges from emerging environmental stressors threatening marine organisms, such as pharmaceuticals, microplastics and climate-related ocean changes. Emphasis will be placed on oxidative pathways, including signaling proteins and transcription factors involved More >

  • Open Access

    ARTICLE

    Study on the Whole Process Simulation and Regulation Mechanism of Urban Green Ecological Rainwater Drainage System

    Lu Cao, Li Huang, Penghe Zhao, Yuling Liu*

    CMES-Computer Modeling in Engineering & Sciences, Vol.129, No.2, pp. 787-803, 2021, DOI:10.32604/cmes.2021.016226 - 08 October 2021

    Abstract In view of the frequent waterlogging caused by rapid urbanization and the public’s dissatisfaction with the drainage system, the article based on the concept of the green ecological drainage system, constructed the urban green ecological drainage comprehensive simulation research system, and quickly evaluated pipe network operation and surface water of an industrial park under typical rainfall conditions. The results showed that the drainage capacity of the designed green ecological rainwater drainage system reached 100%, and there was no ponding phenomenon, which indicated that the green ecological rainwater drainage system could effectively solve the practical problems More >

  • Open Access

    ARTICLE

    Comprehensive Network Analysis of the Molecular Regulation Mechanism for Breast Cancer Metastasis

    Shaoguan Huang1, Rong Zhang2, Lizhen Liu3,*

    Oncologie, Vol.23, No.1, pp. 159-171, 2021, DOI:10.32604/Oncologie.2021.012489 - 30 March 2021

    Abstract Breast cancer is one of malignant severe diseases that cause cancer death in women. Although research about the pathogenesis and studies about treatment mechanisms in breast cancer have become clear focuses, we have no clear conclusion yet. Therefore, this research is based on a modular approach to explore key factors and molecular mechanisms that affect breast cancer metastasis. First of all, it is necessary to download breast cancer-related data on the GEO database, and we analyzed the difference between primary tumors and metastatic lesions to obtain differential gene expression profiles. On this basis, a series… More >

  • Open Access

    ARTICLE

    Improved Particle Swarm Optimization for Selection of Shield Tunneling Parameter Values

    Gongyu Hou1, Zhedong Xu1,*, Xin Liu1, Cong Jin1

    CMES-Computer Modeling in Engineering & Sciences, Vol.118, No.2, pp. 317-337, 2019, DOI:10.31614/cmes.2019.04693

    Abstract This article proposes an exponential adjustment inertia weight immune particle swarm optimization (EAIW-IPSO) to enhance the accuracy and reliability regarding the selection of shield tunneling parameter values. According to the iteration changes and the range of inertia weight in particle swarm optimization algorithm (PSO), the inertia weight is adjusted by the form of exponential function. Meanwhile, the self-regulation mechanism of the immune system is combined with the PSO. 12 benchmark functions and the realistic cases of shield tunneling parameter value selection are utilized to demonstrate the feasibility and accuracy of the proposed EAIW-IPSO algorithm. Comparison More >

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