检索结果-南通市图书馆

Effect of synthesis variables of plasma synthesized polymers on growth of HepG2 cells

在线全文

学校读者我要写书评

暂无评论

BIOCELL 2017年第2期41卷 41-43页

作者： ELIZABETH PEREZ-TEJADA JUAN morales-CORONA luis ERNESTO GOMEZ-QUIROZ MARIA CONCEPCIONGUTIERREZ-RUIZ ROBERTO OLAYO Departamento de Química.Universidad Autónoma Metropolitana Unidad IztapalapaApdo.Postal 55-534IztapalapaCDMXCP 09340 Departamento de Ciencias de la Salud.Universidad Autónoma Metropolitana Unidad IztapalapaApdo.Postal 55-534IztapalapaCDMXCP 09340 Departamento de Física.Universidad Autónoma Metropolitana Unidad IztapalapaApdo.Postal 55-534IztapalapaMéxicoD.F.CP 09340 CECyT No.8 Instituto Politécnico NacionalAve.de las Granjas 618Jardín AzpeitiaAzcapotzalcoCDMXCP 02530

Low pressure plasma polymer films were synthesized using pyrrole and allylamine monomers and adding iodine was used(or not)for the reaction in both *** were polymerized on glass substrates under the same reaction *** of allylamine was also studied at different operating *** thin polymer films were used as culture surfaces for HepG2 cells,a cell line derived from a human *** proliferation,differentiation and two-dimensional propagation until obtaining monolayer of the cells was studied on the different synthetized films and correlations were established between the conditions of synthesis,the physicochemical characteristics obtained and the performance as substrates for the cellular growth.

关键词： Hepatocytes Pyrrole Allylamine Plasma Polymerization

Prenatal programing of motivated behaviors:can innate immunity prime behavior?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2023年第2期18卷 280-283页

作者： Larisa Montalvo-Martínez Gabriela Cruz-Carrillo Roger Maldonado-Ruiz luis ATrujillo-Villarreal Eduardo AGarza-Villarreal Alberto Camacho-morales Universidad Autónoma de Nuevo León Department of BiochemistryCollege of MedicineMonterreyMéxico Universidad Autónoma de Nuevo León Neurometabolism UnitCenter for Research and Development in Health SciencesMonterreyMéxico Universidad Nacional Autónoma de México Campus Juriquilla Instituto de NeurobiologíaQueretaroMéxico

Prenatal programming during pregnancy sets physiological outcomes in the offspring by integrating external or internal ***,pregnancy is an important stage of physiological adaptations to the environment where the fetus becomes exposed and adapted to the maternal *** exposure to high-energy dense diets can affect motivated behavior in the offs p ring leading to addiction and impaired sociability.A high-energy dense exposure also increases the pro-inflammatory cytokines profile in plasma and brain and favors microglia activation in the *** still under investigation,prenatal exposure to high-energy dense diets promotes structural abnormalities in selective brain regions regulating motivation and social behavior in the *** current review addresses the role of energy-dense foods programming central and peripheral inflammatory profiles during embryonic development and its effect on motivated behavior in the *** provide preclinical and clinical evidence that supports the contribution of prenatal programming in shaping immune profiles that favor structural and brain circuit disruption leading to aberrant motivated behaviors after *** hope this minireview encourages future research on novel insights into the mechanisms underlying maternal programming of motivated behavior by central immune networks.

关键词： addiction autism behavior cytokines diet maternal immune activation prenatal programming sociability trained immunity western-diets

Modeling Macrophage Polarization and Its Effect on Cancer Treatment Success

在线全文

学校读者我要写书评

暂无评论

Open Journal of Immunology 2018年第2期8卷 36-80页

作者： Valentin morales luis Soto-Ortiz Department of Engineering and Technologies East Los Angeles College Monterey Park USA Department of Mathematics East Los Angeles College Monterey Park USA

Positive feedback loops drive immune cell polarization toward a pro-tumor phenotype that accentuates immunosuppression and tumor angiogenesis. This phenotypic switch leads to the escape of cancer cells from immune destruction. These positive feedback loops are generated by cytokines such as TGF-β, Interleukin-10 and Interleukin-4, which are responsible for the polarization of monocytes and M1 macrophages into pro-tumor M2 macrophages, and the polarization of naive helper T cells intopro-tumor Th2 cells. In this article, we present a deterministic ordinary differential equation (ODE) model that includes key cellular interactions and cytokine signaling pathways that lead to immune cell polarization in the tumor microenvironment. The model was used to simulate various cancer treatments in silico. We identified combination therapies that consist of M1 macrophages or Th1 helper cells, coupled with an anti-angiogenic treatment, that are robust with respect to immune response strength, initial tumor size and treatment resistance. We also identified IL-4 and IL-10 as the targets that should be neutralized in order to make these combination treatments robust with respect to immune cell polarization. The model simulations confirmed a hypothesis based on published experimental evidence that a polarization into the M1 and Th1 phenotypes to increase the M1-to-M2 and Th1-to-Th2 ratios plays a significant role in treatment success. Our results highlight the importance of immune cell reprogramming as a viable strategy to eradicate a highly vascularized tumor when the strength of the immune response is characteristically weak and cell polarization to the pro-tumor phenotype has occurred.

关键词： Macrophage Polarization Feedback Loops Immunosuppression Mathematical Modeling Cancer Therapy

T_3-induced liver AMP-activated protein kinase signaling:Redox dependency and upregulation of downstream targets

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第46期20卷 17416-17425页

作者： luis A Videla Virginia Fernández Pamela Cornejo Romina Vargas Paula morales Juan Ceballo Alvaro Fischer Nicolás Escudero Oscar Escobar Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesFaculty of MedicineUniversity of ChileIndependencia 1027SantiagoChile School of Medical Technology Faculty of MedicineDiego Portales UniversityEjército 141SantiagoChile

AIM: To investigate the redox dependency and promotion of downstream targets in thyroid hormone (T3)-induced AMP-activated protein kinase (AMPK) signaling as cellular energy sensor to limit metabolic stresses in the l... 详细信息

关键词： Liver Thyroid hormone N-acetylcysteine AMP-activated protein kinase Fatty acid oxidation

Design optimization of multilayer perceptron neural network by ant colony optimization applied to engine emissions data

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2019年第6期62卷 1055-1064页

作者： MARTINEZ-morales Jose QUEJ-COSGAYA Hector LAGUNAS-JIMENEZ Jose PALACIOS-HERNANDEZ Elvia morales-SALDANA Jorge Faculty of Engineering Autonomous University of Campeche Campeche 24039 Mexico Faculty of Sciences Autonomous University of San Luis Potosi San Luis Potosi 78290 Mexico Faculty of Engineering Autonomous University of San Luis Potosi San Luis Potosi 78290 Mexico

A multilayer perceptron(MLP) artificial neural network(ANN) model has been optimized by the multi-objective ant colony optimization(MOACO) algorithm, which uses three objective functions. A sensitivity analysis to choose MOACO parameter values is carried out by calculating hypervolume metric, and the proposed approach adopts the Vlsekriterijumska Optimizacija I Kompromisno Resenje(VIKOR) decision method to choose final compromised solution on the Pareto front obtained from MOACO. As a result, we used the MLP-MOACO developed model to estimate the value of engine emissions of NOxin a four stroke, spark ignition(SI) gasoline engine and observed acceptable correlation coefficient(R^2) of 0.99978.

关键词： ant colony optimization multilayer perceptron artificial neural networks hypervolume engine emissions

Intestinal parasitism in schoolchildren in 2005, 2006 and 2007: A real challenge to overcome by the national deworming campaign in Northwestern Mexico

在线全文

学校读者我要写书评

暂无评论

Open Journal of Preventive Medicine 2013年第2期3卷 178-183页

作者： luis Quihui Cota Gloria Guadalupe morales-Figueroa Department of Public Health and Nutrition Research Center for Food and Development Hermosillo Mexico

Introduction: Intestinal parasitism has been a challenge to overcome for the Mexican deworming campaign and this study determined the prevalence of these infections in schoolchildren treated with albendazole in Northwestern Mexico. Methods: Study sites in marginal conditions, with gastrointestinal infections and albendazole intervention were selected. The Faust and Kato Katz techniques were used to identify the parasites spp. and the NCSS software was used for statistical analysis. Results: A total of 450, 389 and 364 schoolchildren participated in 2005, 2006, and 2007 respectively during this study. The mean age was 7.9 (±1.3). The estimated prevalences were of 42%, 30% and 37% for protozoa infections, and 11%, 12% and 11% for helminth infections in 2005, 2006 and 2007 respectively. Conclusion: The education strategies should be integrated into the Mexican deworming campaign.

关键词： Intestinal Parasitism Albendazole Deworming Campaign Schoolchildren Northwest Mexico

An atypical case of disseminated cutaneous leishmaniasis due to Leishmania peruviana in the valleys of Ancash-Peru

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2017年第11期10卷 1101-1103页

作者： Diego Espinoza-morales Aldo Lucchetti Rodríguez Wilmer Silva-Caso luis Suarez-Ognio María J.Pons Juana del Valle Mendoza School of Medicine Health Sciences FacultyUniversidad Peruana de Ciencias AplicadasAv.San Marcos cdra Cedros de Villa LimaPeru 2Infectology ServicieHospital Arzobispo LoayzaAv.Alfonso Ugarte 848Cercado de LimaLimaPeru Research Center and Innovation of the Health Sciences Faculty Universidad Peruana de Ciencias AplicadasAv.San Marcos cdra 2 ChorrillosLimaPeru

We present an atypical case of disseminated cutaneous leishmaniasis in the Sihuas district, located in the Andean valleys of Ancash-Peru. A 62-year-old man with no particular medical history presented multiple lesions located on the inferior abdomen, lumbar region and the right anterior thigh. Histological analysis found leishmanial amastigotes in the lesion sample, the Montenegro reaction was positive for Leishmania spp, and the polymerase chain reaction was positive for Leishmania peruviana. In conclusion, the atypical presentation of this disease may be related to the presence of an uncommon parasite strain or host immune deficiencies. The molecular identification of the etiology for disseminated leishmaniasis, will allow a better understanding of the presentation and proper treatment,as well as associated risk factors.

关键词： Leishmaniasis Leishmania peruviana PCR Peru

Deciphering the fiber quality of Gossypium barbadense *** in La Convención,Cusco,Perú

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Cotton Research 2024年第3期7卷 231-242页

作者： morales-ARANIBAR luis SAENZ Manuel Canto morales-ARANIBAR Carlos Genaro RIVERA Marite Yulisa Nieves AGUILERA Jorge González STEINER Fábio BARDIVIESSO Diógenes Martins ZUFFO Alan Mario National Intercultural University of Quillabamba Cusco 08741Peru Universidad Nacional Agraria La Molina(UNALM) Lima 012Peru Graduate School Jorge Basadre Grohmann National UniversityTacna 583000Peru National Institute of Agrarian Innovation(INIA) Lima 15024Peru Department of Agronomy State University of Mato Grosso do Sul(UEMS)Cassilândia 79540‑000MSBrazil Department of Agronomy State University of Maranhão(UEMA)Balsas 65800‑000MABrazil

Background The quality of cotton fiber determines its value in the textile market,influencing agricultural profitability and the efficiency of textile *** selection of genotypes with superior fibers is a key factor for genetic improvement programs seeking adaptability and sustainability in the face of climate *** demonstrates the strategic importance of this plant for sustainable agriculture and the global textile *** objective of this research was to decipher the fiber quality of Gossypium barbadense *** in the native Amazonian communities of La Convención,Cusco-Perú,and to evaluate other critical aspects of native cotton that have not yet been *** methodology included non-probability sampling for accessibility,qualitative and quantitative analyses,and multivariate *** fiber length(mm),micronaire index(maturity/fineness),fiber strength(gf/tex),length uniformity index(%),fiber elongation(%),maturation index(%),and short fiber index(%)were the fiber characteristics evaluated using the HVI method in cotton *** Cotton accessions collected from Koribeni(Gossypium spp.)and Shivankoreni(Gossypium barbadense ***)stood out for their fiber quality properties,especially length,strength,and uniformity,which highlights their relevance for advanced textile applications and potential for use in plant genetic improvement *** These findings reinforce the need to conserve and study these native cotton accessions from the Peruvian Amazon region,which can offer promising perspectives for the textile industry and agricultural biodiversity.

关键词： Cotton Sustainability Amazonian communities Cotton fiber quality

Preparation of a ε-caprolactonic diterpenoid derivate by unexpected oxidative cleavage/lactonization of 2-oxoaustroeupatol

在线全文

学校读者我要写书评

暂无评论

Natural Products and Bioprospecting 2022年第1期12卷 265-269页

作者： Pablo A.Chacón-morales Juan M.Amaro-luis luis Beltrán Rojas Fermín Rémi Jacquet Denis Deffieux Laurent Pouységu Stéphane Quideau Natural Products Laboratory Department of ChemistryFaculty of ScienceUniversity of Los AndesMérida 5101Venezuela Research Institute Faculty of Pharmacy and BioanalysisUniversity of Los AndesMérida 5101Venezuela ISM(CNRS-UMR 5255) Univ.Bordeaux351 cours de la Libération33405 Talence CedexFrance

From aerial parts of Austroeupatorium inulifolium was isolated the ent-nor-furano triol labdane austroeupatol *** compound 1 was treated with IBX showing an unexpected selectivity at the potentially oxidizable sites of the sub-strate yielding the 2-oxoaustroeupatol(2)and 2,19-dioxoaustroeupatol(3).The treatment of 2 with sodium periodate yields a heterocyclic derivative(ε-caprolactone derivate 4)formed by oxidative cleavage and unexpected intramo-lecular attack of the hydroxymethylene(C-19)oxygen to the ketonic carbon(C-2).A plausible mechanistic pathway for the obtention of compound 4 is proposed.

关键词： Oxidative cleavage Austroeupatol NaIO4 IBX Lactonization NMR