Romero-Castillo PA¹, MC Pérez Amador Barron¹, P Guevara Fefer¹, V Muñoz Ocotero¹, A Reyes Dorantes², F Aguirre Garcia², A Amaya Chavez³

Phyton-International Journal of Experimental Botany, Vol.82, pp. 75-80, 2013, DOI:10.32604/phyton.2013.82.075

Abstract The search for new anti-inflammatory drugs with fewer side effects than those currently available in the market has recently attracted the interest of scientists. Medicinal plants might be a natural source of medicines. Such is the case with Ziziphus amole (Sessé & Moc.) M.C. Johnst. or corongoro, a plant species native to México. It is used in traditional medicine as an anti-inflammatory drug, a healing substance and an analgesic, and in the treatment of diarrhea, diabetes, asthma and hemorrhoids. The aim of this study was to evaluate the anti-inflammatory effect of Z. amole in the acute 12-O-tetradecanoylphorbol-13-acetate (TPA) induced mouse… More >

Pérez-Amador¹ MC, V Muñoz Ocotero¹, F García Jiménez²

Phyton-International Journal of Experimental Botany, Vol.77, pp. 103-111, 2008, DOI:10.32604/phyton.2008.77.103

Abstract Phototoxic compounds (polyacetylenes and thiophenes) and their biological activity were determined on Bidens squarrosa plants by measuring their antibacterial and anti-inflammatory potential. Phototoxic compounds were extracted with hexane, characterized by TLC, and their presence confirmed by U.V. spectrum of their extracts and bactericidal potential. Antibacterial activity of the hexane, ethyl acetate and methanol extracts was measured against Bacillus subtilis and Escherichia coli, and their antiinflammatory potential was determined by the mouse ear edema test. More >

Pérez-Amador¹ MC, V Muñoz Ocotero¹, F García Jiménez²

Phyton-International Journal of Experimental Botany, Vol.77, pp. 21-29, 2008, DOI:10.32604/phyton.2008.77.021

Abstract Leaves of Eupatorium morifolium Mill. were analyzed for phototoxic compounds, and the toxicity of their hexane extract was evaluated against Bacillus subtilis. The phototoxic compounds were analyzed by TLC. In the plate, pale blue spots indicated the presence of these compounds. This was confirmed by the UV extract spectrum and the antibacterial activity against Bacillus subtilis. The biological activity of the leaf extracts (hexane, ethyl acetate or methanol) was also studied. The antiinflammatory activity was determined using the edema test on mouse ears, and the bactericide activity was assayed against Bacillus subtilis and Escherichia coli. A strong anti-inflammatory activity was… More >

Yu Sun^1,2,*, Qiyuan Gao³, Xiaofan Du³, Zhao Gu³

CMC-Computers, Materials & Continua, Vol.61, No.3, pp. 1365-1375, 2019, DOI:10.32604/cmc.2019.06294

Abstract In this advanced age, when smart phones are the norm, people utilize social networking, online shopping, and even private information storage through smart phones. As a result, identity authentication has become the most critical security activity in this period of the intelligent craze. By analyzing the shortcomings of the existing authentication methods, this paper proposes an identity authentication method based on the behavior of smartphone users. Firstly, the sensor data and touch-screen data of the smart phone users are collected through android programming. Secondly, the eigenvalues of this data are extracted and sent to the server. Thirdly, the Support Vector… More >

Yan Zu^1,2, Qiang Li¹, Chun Yang^2,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 106-106, 2019, DOI:10.32604/mcb.2019.07132

Abstract Extracellular matrix (ECM) elasticity affects the function of a variety of cells. Integrins are transmembrane receptors that considered to be a sensor of cellular mechanical stimulation. The activity of integrins is strongly influenced by glycans through glycosylation events and the establishment of glycan-mediated interactions. Our study found that the level of β1 integrin N-linked glycosylation was significantly down-regulated on softer ECM. Further, sialic acid is a common monosaccharide modified at the end of the sugar chain during N-glycosylation. We subjected the enriched sialylated glycoproteins to gel-based proteomic identification by tandem mass spectrometry and found that the chondrocytes seeded on stiff… More >

Leandro Fleck Fadel Miguel¹, Letícia Fleck Fadel Miguel²

Structural Durability & Health Monitoring, Vol.8, No.3, pp. 249-270, 2012, DOI:10.32604/sdhm.2012.008.249

Abstract Model updating may be defined as an adjustment on the FE model through modal parameters experimentally obtained, in order to better represent its dynamic behavior. From this definition, structural health monitoring (SHM) methods can be considered closely related with these procedures, because it refers to the implementation of in situ non-destructive sensing and analysis of the dynamic system characteristics, which aims to detect changes that could indicate damage. Within this context, the present paper evaluates an iterative model updating approach when it is subjected to experimental vibration data. In addition, after getting the experimental adjusted model, a numerical damage detection… More >

LIDIA M. LOPEZ^*, AMANDA PELLEGRINO DE IRALDI^*, PATRICIA H. CARRIZO^**, MARTA DUBIN^**, ANDRÉS O.M. STOPPANI^**

BIOCELL, Vol.26, No.2, pp. 237-245, 2002, DOI:10.32604/biocell.2002.26.237

Abstract CG 10-248 (3,4-dihydro-2,2 dimethyl-9-chloro-2H-naphtho[1,2b]pyran-5,6-dione), a ß-lapachone analogue, modified the ultrastructure of rat liver mitochondria in vitro, in the absence of added oxidizable substrates. The condensed mitochondrial state was replaced by the orthodox or swollen state to a significant degree. The number of modified mitochondria depended on incubation time and quinone concentration, in the 25-100 µM range. Under the same experimental conditions, mitochondrial respiration was uncoupled as indicated by the increase in the rate of succinate oxidation by controlled mitochondria in metabolic state “4” (not in state “3”), and by the activation of latent F₀ F₁ -ATP synthase. Taking into account… More >

Mahmoud MOUSTAFA^1,2, Saad ALAMRI¹, Hoida ZAKI², Naglaa LOUTFY², Tarek TAHA³, Ali SHATI¹, Mohamed ALKAHTANI¹, Sajda SIDDIQI¹

BIOCELL, Vol.43, No.2, pp. 81-88, 2019, DOI:10.32604/biocell.2019.06231

Abstract The present research reports of quick and marked changes induced by plant extract of Euryops arabicus in the gene expression of 49-kDa apyrases, cytoskeletal proteins, ATPases, ADPase and amount of amino acid of pea (Pisum sativum L. var. Alaska). Pellets of cytoskeletals proteins (27000 xg) were probed with anti-apyrase antibody, biotinylated anti-rat, actin and alpha and beta-tubulin for Western blotting. ATPase and ADPase activities were determined based on the hydrolytic efficacy of adenine triphosphate and adenine diphosphate. By 72 hours, the abundance of apyrases, cytoskeletal proteins and amount of amino acid in pellets of 27000 xg of germinated pea seeds… More >

Deli Gao, Zengxin Zhao

The International Conference on Computational & Experimental Engineering and Sciences, Vol.16, No.1, pp. 29-30, 2011, DOI:10.3970/icces.2011.016.029

Abstract The research on casing corrosion in sour environment by a synergism of sweet corrosion and H2S corrosion has become the basis of casing selection and casing string safety evaluation with more and more sour reservoirs containing high H2S concentration being developed. It is essential to scientifically utilize casing service ability and reasonably control production rate of gas well to achieve the effective and safe developing of gas resources during the safety period of casing service with a precise casing life prediction. Scanning electron microscopy and tensile testing were applied to investigate the corrosion of TP110TS tube steel in stimulant solution… More >

Thang Duy Vu, Ruediger Schmidt¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.13, No.2, pp. 35-42, 2009, DOI:10.3970/icces.2009.013.035

Abstract Two geometrically nonlinear finite plate elements incorporating piezoelectric layers are presented, based either on first- or third-order shear deformation theory. Numerical tests are performed for the sensor output voltage of a piezolaminated plate. More >