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  • Open Access

    PROCEEDINGS

    Multicomponent Discrete Boltzmann Method for Compressible Reactive Flows with Thermodynamic Nonequilibrium Effects

    Chongdong Lin1,2,3,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.29, No.1, pp. 1-1, 2024, DOI:10.32604/icces.2024.011631

    Abstract In many real-world scenarios, such as high-speed combustion processes and re-entry flows in aerospace vehicles, the flow conditions often involve complex interactions between multiple chemical species and energy modes, leading to thermodynamic nonequilibrium effects. Traditional computational fluid dynamics (CFD) methods struggle to accurately capture these phenomena due to their simplifying assumptions regarding equilibrium thermodynamics. To solve this issue, the Multicomponent Discrete Boltzmann Method (MDBM) is proposed as a numerical approach to simulate compressible reactive flows with thermodynamic nonequilibrium effects. Based on kinetic theory, this method can capture the complex interactions between different species and energy… More >

  • Open Access

    ARTICLE

    Tanshinone IIA inhibits NLRP3 activation and attenuates alveolar macrophage pyroptosis via the TREM2/β-catenin pathway

    MIN LIU1,*, XIA LI2, JUN LIU1, YU LIU1

    BIOCELL, Vol.48, No.10, pp. 1475-1487, 2024, DOI:10.32604/biocell.2024.053227 - 02 October 2024

    Abstract Background: Alveolar macrophage pyroptosis exacerbates inflammatory lung diseases, and tanshinone IIA is known for its anti-inflammatory properties. Thus, understanding how tanshinone IIA affects alveolar macrophage pyroptosis is essential. Methods: NR8383 cells were exposed to lipopolysaccharide (LPS) and adenosine triphosphate (ATP). We assessed cell viability, pyroptosis, and the expression of triggering receptors expressed on myeloid cells 2 (TREM2), p-β-catenin, β-catenin, and pyroptosis-related factors. We also examined the interaction between tanshinone IIA and TREM2. Results: Co-stimulation with LPS and ATP significantly reduced NR8383 cell viability, increased pyroptosis, and upregulated pyroptosis-associated factors. Treatment with tanshinone IIA mitigated these effects.… More >

  • Open Access

    ARTICLE

    Potential of Bamboo Species Guadua trinii and Guadua angustifolia for Nanocellulose Production

    Agatha E. R. Prado Gárate1,2, Fernando E. Felissia2, María Cristina Area2, Teresa Suirezs3, María Evangelina Vallejos2,*

    Journal of Renewable Materials, Vol.12, No.9, pp. 1541-1555, 2024, DOI:10.32604/jrm.2024.052481 - 25 September 2024

    Abstract Non-traditional lignocellulosic materials are a significant resource for producing high-value products, including nanocellulose. This work studied the nanocellulose obtention from chemical pulps of the two fast-growing bamboo species, Guadua trinii, and Guadua angustifolia. Chemical pulps were produced by soda-anthraquinone (S) pulping from both autohydrolysis-pretreated (H) and unpretreated bamboo chips. Autohydrolysis-pretreated (SHP) and unpretreated soda-anthraquinone (AQ) (SP) pulps were characterized by yield, Kappa number, alpha, beta, and gamma cellulose, degree of polymerization, water retention value, and crystallinity. The nanocellulose was produced by a sequential chemical oxidation treatment (2,2,6,6-tetramethylpiperidine-1-oxyl, TEMPO reagent) and mechanical nanofibrillation. Nanocellulose was characterized by carboxylic… More > Graphic Abstract

    Potential of Bamboo Species <i>Guadua trinii</i> and <i>Guadua angustifolia</i> for Nanocellulose Production

  • Open Access

    ARTICLE

    A novel prognostic gene signature, nomogram and immune landscape based on tanshinone IIA drug targets for hepatocellular carcinoma: Comprehensive bioinformatics analysis and in vitro experiments

    BOWEN PENG1, YUN GE1, GANG YIN2,3,*

    BIOCELL, Vol.47, No.7, pp. 1519-1535, 2023, DOI:10.32604/biocell.2023.027026 - 21 June 2023

    Abstract Background: Tanshinone IIA, one of the main ingredients of Danshen, is used to treat hepatocellular carcinoma (HCC). However, potential targets of the molecule in the therapy of HCC are unknown. Methods: In this study, we collected the tanshinone IIA targets from public databases for investigation. We screened differentially expressed genes (DEGs) across HCC and normal tissues using mRNA expression profiles from The Cancer Genome Atlas (TCGA). Univariate Cox regression analysis and least absolute shrinkage and selection operator (LASSO) Cox regression models were used to identify and construct the prognostic gene signature. Results: Finally, we discovered common… More >

  • Open Access

    ARTICLE

    Repellent and Insecticidal Activity of Naphthoquinones from the Heartwood of Tectona grandis on Incisitermes marginipennis (Latreille)

    Crisanto Velázquez-Becerra1,*, Gu Yen Ambriz-Ortiz1, Rafael Torres-Martínez2, Mauro Manuel Martínez-Pacheco3

    Phyton-International Journal of Experimental Botany, Vol.92, No.7, pp. 2165-2181, 2023, DOI:10.32604/phyton.2023.026954 - 29 May 2023

    Abstract Wood is a lignocellulosic material that, because of its organic nature, is a source of nutrients for bacteria, fungi, and insects. Incisitermes marginipennis (Latreille) is an interesting dry wood-boring termite. Because it is an extremely destructive pest, difficult to control due to its cryptic lifestyle, and for its role in the biogeochemical cycle of carbon and other elements; it is a fundamental organism. The use of less toxic and eco-friendly substances is important for protecting domestic, cultural, and historical heritage made of wood or lignocellulosic materials. The aim of this study was to evaluate the biological… More >

  • Open Access

    ARTICLE

    Tanshinone IIA protects intestinal epithelial cells from ferroptosis through the upregulation of GPX4 and SLC7A11

    HAN WANG1,2,#, YANG SUN1,2,#, XIAOXU ZHANG2,3, XIAOYING WANG4, YUJUN XIA1,*, LISHENG WANG1,2,*

    BIOCELL, Vol.47, No.5, pp. 1107-1115, 2023, DOI:10.32604/biocell.2023.027131 - 10 April 2023

    Abstract Background: Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract. The destruction of the intestinal epithelial barrier is one of the major pathological processes in IBD pathology. Growing evidence indicated that epithelial cell ferroptosis is linked to IBD and is considered a target process. Methods: RAS-selective lethal 3 (RSL3) was used to induce ferroptosis in intestinal epithelial cell line No. 6 (IEC-6) cells, and cell ferroptosis and the effects of tanshinone IIA (Tan IIA) were determined by cell counting kit-8 (CCK-8), reactive oxygen species (ROS) staining, Giemsa staining and transmission electron microscope… More >

  • Open Access

    REVIEW

    Valorization of Aloe barbadensis Miller. (Aloe vera) Processing Waste

    Jeltzlin Semerel1, Nigel John1, Wim Dehaen2, Pedro Fardim3,*

    Journal of Renewable Materials, Vol.11, No.3, pp. 1031-1061, 2023, DOI:10.32604/jrm.2022.023449 - 31 October 2022

    Abstract Aloe vera plant is known worldwide for its medicinal properties and application in gel-based products such as shampoo, soap, and sunscreen. However, the demand for these gel-based products has led to a surplus production of Aloe vera processing waste. An Aloe vera gel processing facility could generate up to 4000 kg of Aloe vera waste per month. Currently the Aloe vera waste is being disposed to the landfill or used as fertilizer. A sustainable management system for the Aloe vera processing waste should be considered, due to the negative societal and environmental impacts of the currents waste disposal methods. Therefore, this… More > Graphic Abstract

    Valorization of <i>Aloe barbadensis</i> Miller. (<i>Aloe vera</i>) Processing Waste

  • Open Access

    REVIEW

    Use of the Naphthoquinone YM155 (Sepantronium Bromide) in the Treatment of Cancer: A Systematic Review and Meta-Synthesis

    Dariimaa Ganbat1,2, Bat-Erdene Jugder3, Lkhamaa Ganbat4, Miki Tomoeda5, Erdenetsogt Dungubat2,6, Ambaga Miyegombo7, Gantsetseg Garmaa8, Yoshihisa Takahashi6, Ryuji Fukuzawa6, Ichiro Mori6, Takayuki Shiomi6, Akinori Nakata9, Yasuhiko Tomita6,*

    Oncologie, Vol.24, No.2, pp. 195-225, 2022, DOI:10.32604/oncologie.2022.022299 - 29 June 2022

    Abstract Most cancer cells overexpress the anti-apoptotic protein survivin and display redox dysregulation originating from genotypic and phenotypic alterations. These disturbances contribute to the uncontrolled proliferation, invasion, and chemoresistance of cancer cells, yet they also represent a specific vulnerability that could be exploited therapeutically in selected tumors. YM155 (sepantronium bromide) is a naphthoquinone-containing imidazolebased compound that selectively inhibits survivin expression at the transcriptional and post-transcriptional levels. Here, we performed a systematic review and meta-analysis of clinical studies in which YM155 was administered as monotherapy or combination therapy for patients with cancer. We assessed fully or partially… More >

  • Open Access

    ARTICLE

    Molecular Interaction Study to Explore the Nigella sativa Bioactive Components as an Inhibitor of Peptide Deformylase to Inhibit the Xanthomonas oryzae pv. oryzae via Applying Computational Approach

    Pravej Alam*, Thamer H. Al balawi

    Phyton-International Journal of Experimental Botany, Vol.91, No.9, pp. 1923-1931, 2022, DOI:10.32604/phyton.2022.021334 - 13 May 2022

    Abstract Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the most damaging diseases to rice across the world. Various chemicals have been employed so far for the management of bacterial leaf blight. On the other hand, these compounds are damaging to the ecosystem and have an impact on non-target species such as humans and animals. As a result, there is a need to create a new natural inhibitor for BLB management. Deformylase (PDF) enzyme is present in all eubacteria and its necessity in bacterial protein synthesis reveals it as an attractive target… More >

  • Open Access

    ARTICLE

    Antifungal Activity of Crude Extracts of Tectona grandis L.f. against Wood Decay Fungi

    Enrique Cárcamo-Ibarra1, Mauro Manuel Martínez-Pacheco2, Abril Munro-Rojas1, Jorge Enrique Ambriz-Parra1, Crisanto Velázquez-Becerra1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.8, pp. 1795-1808, 2022, DOI:10.32604/phyton.2022.020578 - 14 April 2022

    Abstract Wood is mainly made up of cellulose, hemicelluloses, lignin polymers and other organic and inorganic substances, making it susceptible to deteriorate by various biological agents. Tectona grandis L.f. (Teak) is a timber species with high resistance to biological deterioration, valued for its durability, beauty, and mechanical resistance. The purpose of this work was to evaluate the antifungal activity of crude extracts from teak on various fungi that cause wood deterioration. For this, Teak heartwood was obtained, then fragmented and pulverized until obtaining a flour which was used for compounds extraction using the Soxhlet technique coupled to… More >

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