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| 1 | Aminoguanidine impedes human pancreatic tumor growth and metastasis development in nude mice显示文摘AIM:To study the action of aminoguanidine on pancreatic cancer xenografts in relation to cell proliferation,apoptosis,redox status and vascularization.METHODS:Xenografts of PANC-1 cells were developed in nude mice. The animals were separated into two groups:control and aminoguanidine treated. Tumor growth,survival and appearance of metastases were determined in vivo in both groups. Tumors were excised and ex vivo histochemical studies were performed. Cell growth was assessed by Ki-67 expression. Apoptosis was studied by intratumoral expression of B cell lymphoma-2 protein (Bcl-2) family proteins and Terminal deoxynucleotidyl transferase biotin-dUTP Nick End Labeling (Tunel). Redox status was evaluated by the expression of endothelial nitric oxide synthase (eNOS),catalase,copper-zinc superoxide dismutase (CuZnSOD),manganese superoxide dismutase (MnSOD) and glutathione peroxidase (GPx). Finally,vascularization was determined by Massons trichromic staining,and by VEGF and CD34 expression.RESULTS:Tumor volumes after 32 d of treatment by aminoguanidine (AG) were significantly lower than in control mice (P < 0.01). Median survival of AG mice was significantly greater than control animals (P < 0.01). The appearance of both homolateral and contralateral palpable metastases was significantly delayed in AG group. Apoptotic cells,intratumoral vascularization (trichromic stain) and the expression of Ki-67,Bax,eNOS,CD34,VEGF,catalase,CuZnSOD and MnSOD were diminished in AG treated mice (P < 0.01),while the expression of Bcl-2 and GPx did not change.CONCLUSION:The antitumoral action of aminoguanidine is associated with decreased cell proliferation,reduced angiogenesis,and reduced expression of antioxidant enzymes. | Nora A Mohamad Graciela P Cricco Lorena A Sambuco Máximo Croci Vanina A Medina Alicia S Gutiérrez Rosa M Bergoc Elena S Rivera Gabriela A Martín | 2009 | World Journal of Gastroenterology2009，15，9： | 3 |
| 2 | Effect of Nd3+doping on structure,microstructure,lattice distortion and electronic properties of TiO_2 nanoparticles显示文摘Doped and undoped TiCh nanoparticles were prepared by Stober method and thermally treated at 600 ℃.The effect of Nd^(3+) ion on the structure and micro structure of anatase-phase TiCh nanocrystals was studied by Rietveld refinement method using X-ray powder diffraction data.Bond lengths,bond angles,and edges distances were analyzed.The phase formation was confirmed by high-resolution transmission electron microscopy.The adjustment of Ti-0 bond length induced by the addition of Nd^(3+) ions,reduced the octahedral distortion and altered the octahedral array in the anatase-phase TiCh nanocrystal.The changes of structure and microstructure were mainly observed for TiCh nanoparticles doped with 0.1 at.%of Nd^(3+) ions and attributed to the cationic substitution of Ti^(4+) ions which promoted changes in the density of states and gap band of TiCh.The dopant insertion resulted in a better structural stability of the nanocrystals that enhanced their charge transference and photocatalytic efficiency. | Balter Trujillo-Navarrete María del Pilar Haro-Vázquez Rosa María Félix-Navarro Francisco Paraguay-Delgado Henry Alvarez-Huerta Sergio Pérez-Sicairos Edgar Alonso Reynoso-Soto | 2017 | Journal of Rare Earths2017，35，3： | 2 |
| 3 | Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection显示文摘Severe Acute Respiratory Syndrome Coronavirus(SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity components.Dendritic cells(DCs)play a key role in the defense against viral infections,for instance plasmacytoid DCs(pDCs),have the capacity to produce vast amounts of interferon-alpha(IFN-α).In COVID-19 there is a deficit in DC numbers and IFN-αproduction,which has been associated with disease severity.In this work,we described that in addition to the DC deficiency,several DC activation and homing markers were altered in acute COVID-19 patients,which were associated with multiple inflammatory markers.Remarkably,previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+myeloid DCs and pDCs seven months after SARS-CoV-2 infection.Moreover,the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients,while no restoration of integrinβ7 and indoleamine 2,3-dyoxigenase(IDO)levels were observed.These findings contribute to a better understanding of the immunological sequelae of COVID-19. | Alberto Pérez-Gómez Joana Vitallé Carmen Gasca-Capote Alicia Gutierrez-Valencia María Trujillo-Rodriguez Ana Serna-Gallego Esperanza Muñoz-Muela María de los Reyes Jiménez-Leon Mohamed Rafii-El-Idrissi Benhnia Inmaculada Rivas-Jeremias Cesar Sotomayor Cristina Roca-Oporto Nuria Espinosa Carmen Infante-Domínguez Juan Carlos Crespo-Rivas Alberto Fernández-Villar Alexandre Pérez-González Luis Fernando López-Cortés Eva Poveda Ezequiel Ruiz-Mateos JoséMiguel Cisneros Sonsoles Salto-Alejandre Judith Berastegui-Cabrera Pedro Camacho-Martínez Carmen Infante-Domínguez Marta Carretero-Ledesma Juan Carlos Crespo-Rivas Eduardo Márquez JoséManuel Lomas Claudio Bueno Rosario Amaya JoséAntonio Lepe Jerónimo Pachón Elisa Cordero Javier Sánchez-Céspedes Manuela Aguilar-Guisado Almudena Aguilera Clara Aguilera Teresa Aldabo-Pallas Verónica Alfaro-Lara Cristina Amodeo Javier Ampuero María Dolores Avilés Maribel Asensio Bosco Barón-Franco Lydia Barrera-Pulido Rafael Bellido-Alba Máximo Bernabeu-Wittel Candela Caballero-Eraso Macarena Cabrera Enrique Calderón Jesús Carbajal-Guerrero Manuela Cid-Cumplido Yael Corcia-Palomo Juan Delgado Antonio Domínguez-Petit Alejandro Deniz Reginal Dusseck-Brutus Ana Escoresca-Ortega Fátima Espinosa Nuria Espinosa Michelle Espinoza Carmen Ferrándiz-Millón Marta Ferrer Teresa Ferrer Ignacio Gallego-Texeira Rosa Gámez-Mancera Emilio García Horacio García-Delgado Manuel García-Gutiérrez María Luisa Gascón-Castillo Aurora González-Estrada Demetrio González Carmen Gómez-González Rocío González-León Carmen Grande-Cabrerizo Sonia Gutiérrez Carlos Hernández-Quiles Inmaculada Concepción Herrera-Melero Marta Herrero-Romero Luis Jara Carlos Jiménez-Juan Silvia Jiménez-Jorge Mercedes Jiménez-Sánchez Julia Lanseros-Tenllado Carmina López Isabel López Álvaro López-Barrios Luis F.López-Cortés Rafael Luque-Márquez Daniel Macías-García Guillermo Martín-Gutiérrez Luis Martín-Villén JoséMolina Aurora Morillo María Dolores Navarro-Amuedo Dolores Nieto-Martín Francisco Ortega María Paniagua-García Amelia Peña-Rodríguez Esther Pérez Manuel Poyato Julia Praena-Segovia Rafaela Ríos Cristina Roca-Oporto Jesús F.Rodríguez María Jesús Rodríguez-Hernández Santiago Rodríguez-Suárez Ángel Rodríguez-Villodres Nieves Romero-Rodríguez Ricardo Ruiz Zida Ruiz de Azua Celia Salamanca Sonia Sánchez Víctor Manuel Sánchez-Montagut César Sotomayor Alejandro Suárez Benjumea Javier Toral | 2021 | Cellular & Molecular Immunology2021，18，9： | 2 |
| 4 | Pleiotropic effects of lactate dehydrogenase inactivationin Lactobacillus casei显示文摘 | María J José L G Vicente M Gaspar P | 2005 | Research in Microbiology2005，156，： | 1 |
| 5 | Surgical resection for intractable epilepsy in 'double cortex'syndrome yields inadequate results 显示文摘 | Bernasconi A Martinez V Rosa Neto P | 2001 | Epilepsia2001，42，9： | 1 |
| 6 | Nm23/nucleoside diphosphate kinase:toward a structural and biochemical understanding of its bio logical functions显示文摘 | de la Rosa A Williams R L Steeg P S | 1995 | Bioessays1995，17，1： | 1 |
| 7 | Enhanced Cooperative Absorption and Upconversion in Yb^3+ Doped YAG Nanophosphors显示文摘 | Diaz-Torres L A Rosa E D Salas P | 2005 | Optical Matersials2005，27，： | 1 |
| 8 | 查看详情显示文摘 | Skrobot F C Rosa L V M arques P A | | 0，，： | 1 |
| 9 | Development and vali- dation of a method for active drug identification and content deter- mination of ranitidine in pharmaceutical products using near-infra- red reflectance spectroscopy : a parametric release approach 显示文摘 | Rosa S S Barata P A Martins J M | 2008 | Talanta2008，75，： | 1 |
| 10 | Evaluation of the role of genes encoding for At -pyrroline~5-carboxylate syn- thetase (P5CS) during drought stress in arbuscular mycor- rhizal Glycine max and Lactuca sativa plants 显示文摘 | ROSA P ROSARIO A JUAN M R | 2004 | Physiol Mol Plant P2004，65，4： | 1 |
| 11 | Application of aqueous two-phase systems to antibody purification:a multi-stage approach显示文摘 | Rosa P A J Azevedo A M Sommerfeld S | 2009 | Journal of Biotechnology2009，139，4： | 1 |
| 12 | Amino acid-based surfactants显示文摘 | María Rosa Infante Lourdes Pérez Aurora Pinazo Pere Clapés María Carmen Morán Marta Angelet María Teresa García María Pilar Vinardell | 2004 | Comptes rendus - Chimie2004，，6： | 1 |
| 13 | Wind models for simulation of power fluctuations from wind farms 显示文摘 | SRENSEN P HANSEN A D ROSAS P A C | 2002 | Journal of Wind Engineering and Industrial Aerodynamics2002，90，12： | 1 |
| 14 | A Competitive Mean-squared Error Approach to Beamforming显示文摘 | Eldar Y C Nehorai A La Rosa P S | 2007 | IEEE Trans on Signal Processing2007，55，11： | 1 |
| 15 | The Effects of Supplementation with Sunflower and Soybean Oils on The Fatty Acid Profile of Milk Fat from Grazing Dairy Cows显示文摘 | REGO O A ROSA H J D PORTUGAL P V | 2005 | Anita Res2005，54，1： | 1 |
| 16 | A competitive mean squared error approach to beamforming 显示文摘 | Eldar Y C Nehorai A La Rosa P S | 2007 | IEEE Transac- tions on Signal Processing2007，55，11： | 1 |
| 17 | Integrated process for the purification of antibodies combining aqueous two-phase extraction,hydrophobic interaction chromatography and size-exclusion chromatography显示文摘 | Azevedo A M Rosa P A J Ferreira I F | 2008 | Journal of Chromatography A2008，1213，2： | 1 |
| 18 | Affinity partitioning of human antibodies in aqueous two-phase systems 显示文摘 | Rosa P A J Azevedo A M Ferreira I F | 2007 | J Phys Chem A2007，1162，1： | 1 |
| 19 | Expansion and reduction of thin-walled tubes using a die : Experimental and theoretical investigation 显示文摘 | Almeida B P P Alves M L Rosa P A R | 2006 | International Journal of Machine Tools and Manufacture2006，46，1213： | 1 |
| 20 | Gross greenhouse gas fluxes from hydro-power reservoir compared to thermo-power plants显示文摘 | Dos Santos M A Rosa L P Sikar B | 2006 | Energy Policy2006，34，4： | 1 |
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