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Experimental study on fly ash capture mercury in flue gas

Open Journal of Obstetrics and Gynecology（妇产科期刊） 2024年第3期 381页

作者： Florent Ymele Fouelifack Felicite Nguefack patricia Bashir Kadidja Roosvelt Dongmo Tiodjou Jeanne Hortence Fouedjio Pascal Foumane

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Science China(Technological Sciences) 2010年第4期53卷 976-983页

作者： Mercedes DíAZ-SOMOANO patricia ABAD-VALLE M.Rosa MARTíNEZ-TARAZONA Instituto Nacional del Carbón(CSIC)

Systematic experiments were conducted on a fixed-bed reactor to investigate the interaction between fly ash and mercury,the results implied that fly ash can capture mercury *** different fly ashes,the unburned carbon in the FA2 and FA3 fly ashes has the highest mercury capture capacity,up to 10.3 and 9.36 μg/g,respectively,which is close to that of commercial activated *** is no obvious relationship between mercury content and carbon content or BET surface area of fly *** classification standard was applied to distinguish fly ash carbon *** content is not the only variable that controls mercury capture on fly ash,there are likely significant differences in the mercury capture capacities of the various carbon *** capture capacity mainly depends on the content of anisotropy carbon particles with porous network structure.

关键词： mercury fly ash unburned carbon petrography adsorption

Antioxidant Migration Studies in Chitosan Films Incorporated with Plant Extracts

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Journal of Renewable Materials 2018年第5期6卷 548-558页

作者： Victor Gomes Lauriano Souza patricia Freitas Rodrigues Maria Paula Duarte Ana Luisa Fernando MEtRiCS Departamento de Ciências e Tecnologia da BiomassaFaculdade de Ciências e Tecnologia(FCT)Universidade NOVA de LisboaCampus da Caparica2829-516 CaparicaPortugal CenIMAT/I3N Departamento de Ciências dos MateriaisFaculdade de Ciências e Tecnologia(FCT)Universidade NOVA de LisboaCampus da Caparica2829-516 CaparicaPortugal

The aim of this work was to develop an active biopolymer based on chitosan by incorporating natural *** essential oils(ginger,rosemary,sage,tea tree and thyme)and six hydro-alcoholic extracts(from ginger,green and black tea,kenaf leaves,rosemary and sage plants)were *** assays were carried out to evaluate the films’activity,and total phenolic content and antioxidant activity were monitored in the simulant during *** between natural compounds and polymeric matrix was evaluated by FTIR *** diffusion of the phenolic compounds was not detected in the films incorporated with hydro-alcoholic extracts(HAEs),indicating their entrapment in the *** was observed in the films with essential oils(EOs),and biobased films incorporated with ginger,sage or rosemary essential oils,presented the highest diffusion and antioxidant activity in the simulant,highlighting their functionality and potential to be used as food active packaging material.

关键词： Active packaging antioxidant activity biopolymers chitosan phenolic content

Alcoholic liver injury:Influence of gender and hormones

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World Journal of Gastroenterology 2010年第11期16卷 1377-1384页

作者： patricia K Eagon Department of Medicine Division of Gastroenterology Hepatology and Nutrition University of Pittsburgh School of Medicine

This article discusses several subjects pertinent to a consideration of the role of gender and hormones in alcoholic liver injury (ALI). Beginning with an overview of factors involved in the pathogenesis of ALI, we review changes in sex hormone metabolism resulting from alcohol ingestion, summarize research that points to estrogen as a cofactor in ALI, consider evidence that gut injury is linked to liver injury in the setting of alcohol, and briefly review the limited evidence regarding sex hormones and gut barrier function. In both women and female animals, most studies reveal a propensity toward greater alcohol-induced liver injury due to female gender, although exact hormonal influences are not yet understood. Thus, women and their physicians should be alert to the dangers of excess alcohol consumption and the increased potential for liver injury in females.

关键词： Alcohol Liver injury Female Estrogen Oxidative injury

Macrocystic serous cystadenoma of the pancreas

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Hepatobiliary & Pancreatic Diseases International 2019年第6期18卷 587-589页

作者： patricia Pastor Pérez Francisco Miguel González Valverde Francisco Pastor Quirante Department of General Surgery Reina Sofia General University Hospital University of Murcia

Cystic pancreatic lesions are common,and about 90%of these lesions are pseudocysts or retention *** cysts of the pancreas are *** majority of pancreatic serous cystadenomas are *** serous cystadenoma is an unusual and essentially benign pancreatic *** radiologic features of this subtype may resemble a pseudocyst or a mucinous ***,it is often difficult to make a correct diagnosis[1,2].Herein,we report on a macrocystic serous cystadenoma of the pancreas in a 46-year-old female patient,with a preoperative diagnosis of pancreatic pseudocyst by radiologic imaging.

关键词： pancreas adenoma diagnosis

O-(β-hydroxyethyl)rutosides determination by micellar flow injection(FI)-spectrofluorimetry

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Journal of Pharmaceutical Analysis 2014年第6期4卷 368-373页

作者： Cecilia Mariana Peralta Liliana patricia Fernndez Instituto de Químrica de San Luis (INQUISAL-CONICET) 5700 San Luis Argentina rea de Qui mica Fisica Facultacl de QuímicaBioquímica y Farmacia Chacabuco y PedemeraUniversidaci Nacional de San Luis 5700 San Luis Argentina reci de Qufmica Analítica Facultacl de Química Bioquímica y Farmacia Chacabuco y PedemeraUniversidad Nacional de San Luis 5700 San Luis Argentina

A simple,*** and economic flow injection spectrofluorimetric method was developed for the determination of O-（β-hydroxyethyl）*** procedure was based on the use of an anionic surfactant such as sodium dodecyl sulfate to provide an appreciable O-（β-hydroxyethyl）rutosides fluorescence enhancement,increasing considerably the sensitivity of *** the variables affecting the fluorescence intensity were studied and *** flow rate was 5 mL/min with detection at 450 nm（after excitation at 346 nm）.A linear correlation between drug amount and peak area was established for 0-（β-hydroxyethyl）rulosides in the range of 0.01-200 μg/mL with a detection limit of0.001 μg/mL（s/n = 3）.Validation processes were performed by recovering studies with satisfactory *** new methodology can be employed for the routine analysis of 0-（P-hydroxyethyl）rutosides in bulks as well as in commercial formulations.

关键词： O-(β-hydroxyethyl)rutosides Micellar enhancement Flow injection Spectrofluorimetry Pharmaceuticals

Glutathione metabolism is essential for self-renewal and chemoresistance of pancreatic cancer stem cells

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World Journal of Stem Cells 2020年第11期12卷 1410-1428页

作者： Petra Jagust Sonia Alcala Bruno Sainz Jr Christopher Heeschen patricia Sancho Molecular Pathology Programme Spanish National Cancer Research Centre(CNIO)Madrid 28029Spain Department of Biochemistry Autónoma University of MadridInstituto de Investigaciones Biomédicas"Alberto Sols"CSIC-UAMMadrid 28029Spain Center for Single-Cell Omics&Key Laboratory of Oncogenes and Related Genes Shanghai Cancer InstituteShanghai Jiao Tong University School of MedicineShanghai 200025China Hospital Universitario Miguel Servet IIS AragonZaragoza 50009Spain

BACKGROUND Cellular metabolism regulates stemness in health and disease.A reduced redox state is essential for self-renewal of normal and cancer stem cells(CSCs).However,while stem cells rely on glycolysis,different CSCs,including pancreatic CSCs,favor mitochondrial metabolism as their dominant energy-producing *** suggests that powerful antioxidant networks must be in place to detoxify mitochondrial reactive oxygen species(ROS)and maintain stemness in oxidative *** glutathione metabolism is critical for normal stem cell function and CSCs from breast,liver and gastric cancer show increased glutathione content,we hypothesized that pancreatic CSCs also rely on this pathway for ROS *** To investigate the role of glutathione metabolism in pancreatic *** Primary pancreatic cancer cells of patient-derived xenografts(PDXs)were cultured in adherent or CSC-enriching sphere conditions to determine the role of glutathione metabolism in ***-time polymerase chain reaction(PCR)was used to validate RNAseq results involving glutathione metabolism genes in adherent vs spheres,as well as the expression of pluripotency-related genes following *** TCGA and GTEx RNAseq data from pancreatic cancer vs normal tissue samples were analyzed using the webserver *** glutathione-sensitive fluorescent probe monochlorobimane was used to determine glutathione content by fluorimetry or flow *** inhibitors of glutathione synthesis and recycling[buthionine-sulfoximine(BSO)and 6-Aminonicotinamide(6-AN),respectively]were used to investigate the impact of glutathione depletion on CSC-enriched *** with propidium iodide(cell cycle),Annexin-V(apoptosis)and CD133(CSC content)were determined by flow ***-renewal was assessed by sphere formation assay and response to gemcitabine treatment was used as a readout for *** Analysis of our previously published RNAseq dataset E-MTAB-

关键词： Pancreatic cancer Cancer stem cells Glutathione Self-renewal Chemoresistance Redox

Recovery of free volume in PIM-1 membranes through alcohol vapor treatment

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Frontiers of Chemical Science and engineering 2021年第4期15卷 872-881页

作者： Faiz Almansour Monica Alberto Rupesh S.Bhavsar Xiaolei Fan Peter M.Budd patricia Gorgojo Department of Chemical engineering and Analytical Science School of EngineeringThe University of ManchesterManchester M139PLUK Department of Chemistry School of Natural SciencesThe University of ManchesterManchester M139PLUK

Physical aging is currently a major obstacle for the commercialization of PIM-1 membranes for gas separation applications.A well-known approach to reversing physical aging effects of PIM-1 membranes at laboratory scale is soaking them in lower alcohols,such as methanol and ***,this procedure does not seem applicable at industrial level,and other strategies must be *** this work,a regeneration method with alcohol vapors(ethanol or methanol)was developed to recover permeability of aged PIM-1 membranes,in comparison with the conventional soaking-in-liquid *** gas permeability and separation performance,before and post the regeneration methods,were assessed using a binary mixture of CO_(2) and CH_(4)(1:1,v:v).Our results show that an 8-hour methanol vapor treatment was sufficient to recover the original gas permeability,reaching a CO_(2) permeability>7000 barrer.

关键词： polymer of intrinsic microporosity(PIM) PIM-1 physical aging gas separation vapor-phase regeneration

Estimation of the density of neural,glial,and endothelial lineage cells in the adult mouse dentate gyrus

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Neural Regeneration Research 2022年第6期17卷 1286-1292页

作者： Joshua D.Rieskamp patricia Sarchet Bryon M.Smith Elizabeth D.Kirby Neuroscience Graduate Program The Ohio State UniversityColumbusOHUSA Department of Psychology The Ohio State UniversityColumbusOHUSA Department of Neuroscience The Ohio State UniversityColumbusOHUSA Chronic Brain Injury Program The Ohio State UniversityColumbusOHUSA

The dentate gyrus subregion of the mammalian hippocampus is an adult neural stem cell niche and site of lifelong *** regarding the role of adult-born neuron synaptic integration in hippocampal circuit function are framed by robust estimations of adultborn versus pre/perinatally-born neuron *** contrast,the non-neurogenic functions of adult neural stem cells and their immediate progeny,such as secretion of bioactive growth factors and expression of extracellular matrix-modifying proteins,lack similar framing due to few estimates of their number versus other prominent secretory ***,we apply immunohistochemical methods to estimate cell density of neural stem/progenitor cells versus other major classes of glial and endothelial cell types that are potentially secretory in the dentate gyrus of adult *** the cell types quantified,we found that GFAP^(+)SOX2^(+)stellate astrocytes were the most numerous,followed by CD31^(+)endothelia,GFAP-SOX2^(+)intermediate progenitors,Olig2^(+)oligodendrocytes,Iba1+microglia,and GFAP^(+)SOX2^(+)radial glia-like neural stem *** did not observe any significant sex differences in density of any cell ***,neural stem/progenitor cells were present at a similar density as several cell types known to have potent functional roles via their *** findings may be useful for refining hypotheses regarding the contributions of these cell types to regulating hippocampal function and their potential therapeutic *** experimental protocols were approved by the Ohio State University Institutional Animal Care and Use Committee(protocol#2016A00000068)on July 14,2016.

关键词： adult neurogenesis dentate gyrus endothelia glia hippocampus neural stem cell secretome stereology

Astrocytes protect dopaminergic neurons against aminochrome neurotoxicity

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Neural Regeneration Research 2022年第9期17卷 1861-1866页

作者： Juan Segura-Aguilar Bengt Mannervik JoséInzunza Mukesh Varshney Ivan Nalvarte patricia Muñoz Molecular and Clinical Pharmacology ICBM Faculty of Medicine University of Chile SantiagoChile Department of Biochemistry and Biophysics Arrhenius LaboratoriesStockholm UniversityStockholmSweden Department of Biosciences and Nutrition Karolinska InstitutetStockholmSweden Nucleo de Química y Bioquímica Facultad de Estudios InterdisciplinariosUniversidad MayorSantiagoChile

Astrocytes protect neurons by modulating neuronal function and *** support neurons in several *** provide energy through the astrocyte-neuron lactate shuttle,protect neurons from excitotoxicity,and internalize neuronal lipid droplets to degrade fatty acids for neuronal metabolic and synaptic support,as well as by their high capacity for glutamate uptake and the conversion of glutamate to glutamine.A recent reported astrocyte system for protection of dopamine neurons against the neurotoxic products of dopamine,such as aminochrome and other o-quinones,were generated under neuromelanin synthesis by oxidizing dopamine catechol *** secrete glutathione transferase M2-2 through exosomes that transport this enzyme into dopaminergic neurons to protect these neurons against aminochrome *** role of this new astrocyte protective mechanism in Parkinson´s disease is discussed.

关键词： aminochrome astrocytes dopamine dopaminergic neurons exosomes glutathione transferase M2-2 neuroprotection Parkinson’s disease