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Antiglycation and antioxidant activities of the crude extract and saponin fraction of Tribulus terrestris before and after microcapsule release

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Journal of Integrative Medicine 2022年第2期20卷 153-162页

作者： Célia Cristina Malaguti Figueiredo Amanda da costa Gomes Filipe Oliveira Granero Joao Luiz Bronzel Junior Luciana Pereira silva Valdecir Farias Ximenes Regildo Márcio Goncalves da silva Institute of Chemistry São Paulo State UniversityAraraquaraSão Paulo 14800-060Brazil Educational Foundation of the City of Assis AssisSão Paulo 19807-130Brazil Department of Chemistry School of SciencesSão Paulo State UniversityBauruSão Paulo 17033-360Brazil Department of Biotechnology School of SciencesHumanities and LanguagesSão Paulo State UniversityAssisSão Paulo 19806-900Brazil

Objective:The present study investigated antiglycation and antioxidant activities of crude dry extract and saponin fraction of Tribulus *** also developed a method of microencapsulation and evaluated antiglycation and antioxidant activities of crude dry extract and saponin fraction before and after microcapsule ***:Antiglycation activity was determined by relative electrophoretic mobility(REM),free amino groups and inhibition of advanced glycation end-product(AGE)*** activity was determined by 2,2-diphenyl-1-picrylhydrazyl(DPPH),ferric ion-reducing antioxidant power(FRAP),nitric oxide(NO)and thiobarbituric acid reactive species(TBARs)*** were prepared using maltodextrin as wall material and freeze-drying as encapsulation *** characterization of microcapsules was evaluated by scanning electron microscopy,and encapsulation efficiency and microcapsule release were determined by total saponins *** and antioxidant assays were performed using crude dry extract and saponin fraction of *** before and after ***:saponin fraction showed an increase of 32.8%total ***-performance liquid chromatography-mass spectrometry analysis showed the presence of saponins in the obtained *** evaluation by REM demonstrated that samples before and after release presented antiglycation activity similar to bovine serum albumin treated with ***,samples inhibited AGE formation,highlighting treatment with saponin fraction after release(89.89%).Antioxidant tests demonstrated antioxidant activity of the *** dry extract before encapsulation presented the highest activities in DPPH(92.00%)and TBARs(32.49%)*** fraction before encapsulation in FRAP test(499μmol Trolox equivalent per gram of dry sample)and NO test(15.13μmol nitrite formed per gram of extract)presented the highest ***:This study presen

关键词： Glycation Microencapsulation Oxidative stress saponins Tribulus terrestris

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Hydrogeochemical Research of surface Water of the Córrego sujo Watershed, Teresópolis, RJ, Brazil

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Agricultural sciences 2017年第5期8卷 435-450页

作者： Paula Coelho Araujo André s. Avelar Vítor dos santos.costa maria Isabel Martinez Geoscience Department Federal University of Rio de Janeiro Rio de Janeiro Brazil

The surface water quality was investigated in the Córrego sujo watershed, located in the municipality of Teresópolis, a mountainous region in the state of Rio de Janeiro, Brazil. The emphasis focused on inorganic parameters of water, since there are applications of pesticides in agricultural cultivations. The natural and anthropogenic contributions of the study area were monitored monthly in eight sites in the river channels of the drainage basin. The results were analyzed using an ICP-OEs spectrophotometer and subsequently compared to Conama Resolution 357/05. In order to support the interpretation of the results of water quality, flow and precipitation data were measured in the watershed, along with the land use and vegetation cover map produced from a GeoEye satellite image. The study revealed that the surface waters were in high concentrations and above those recommended by Conama Resolution. It was noted also that the lithological and pedological variables influenced the results of water quality. Regarding seasonality, it has not been possible to establish a common standard to all elements in the rainy season or dry season, however, in the analysis of each parameter separately, there was evidence of a concentration distribution in temporal variation. Therefore, the results of this study indicate that it is also necessary to highlight these issues in the territorial planning of the municipality and in the management of the Committee of Rio Piabanha watershed, to avoid the increasing of uncontrolled expansion of irrigated crops and intensive use of agrochemical inputs.

关键词： Hydrogeochemistry Natural and Anthropogenic Influences Land Use surface Waters Rivers

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Cross-sectional evaluation of circulating hepatitis B virus RNA and DNA: Different quasispecies?

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World Journal of Gastroenterology 2021年第41期27卷 7144-7158页

作者： selene Garcia-Garcia maria Francesca Cortese David Tabernero Josep Gregori Marta Vila Beatriz Pacín Josep Quer Rosario Casillas Laura Castillo-Ribelles Roser Ferrer-costa Ariadna Rando-segura Jesús Trejo-Zahínos Tomas Pumarola Ernesto Casis Rafael Esteban Mar Riveiro-Barciela maria Buti Francisco Rodríguez-Frías Clinical Biochemistry Research Group Department of BiochemistryVall d'Hebron Institut Recerca-Hospital Universitari Vall d'HebronUniversitat Autònoma de BarcelonaBarcelona 08035Spain Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas Instituto de Salud Carlos IIIMadrid 28029Spain Liver Unit Liver Disease Laboratory-Viral HepatitisVall d'Hebron Institut Recerca-Hospital Universitari Vall d'HebronVall d’Hebron Barcelona Hospital CampusBarcelona 08035Spain Liver Pathology Unit Departments of Biochemistry and MicrobiologyHospital Universitari Vall d’HebronUniversitat Autònoma de BarcelonaBarcelona 08035Spain Department of Microbiology Hospital Universitari Vall d'HebronVall d'Hebron Barcelona Hospital CampusBarcelona 08035Spain Liver Unit Department of Internal MedicineHospital Universitari Vall d'HebronUniversitat Autónoma de BarcelonaBarcelona 08035Spain

BACKGROUND Different forms of pregenomic and other hepatitis B virus(HBV)RNA have been detected in patients’*** circulating HBV-RNAs may be useful for monitoring covalently closed circular DNA activity,and predicting hepatitis B eantigen seroconversion or viral rebound after nucleos(t)ide analog *** on serum HBV-RNA quasispecies,however,is *** is therefore important to develop methodologies to thoroughly analyze this quasispecies,ensuring the elimination of any residual *** circulating HBV-RNA quasispecies may facilitate achieving functional cure of HBV *** To establish a next-generation sequencing(NGs)methodology for analyzing serum HBV-RNA and comparing it with DNA *** Thirteen untreated chronic hepatitis B patients,showing different HBV-genotypes and degrees of severity of liver disease were enrolled in the study and a serum sample with HBV-DNA>5 Log10 IU/mL and HBV-RNA>4 Log10 copies/mL was taken from each ***-RNA was treated with DNAse I to remove any residual DNA,and the region between nucleotides(nt)1255-1611 was amplified using a 3-nested polymerase chain reaction protocol,and analyzed with ***/conservation and complexity was compared between HBV-DNA and RNA *** No HBV-DNA contamination was detected in cDNA samples from HBV-RNA *** quasispecies complexity showed heterogeneous behavior among *** Rare Haplotype Load at 1%was greater in DNA than in RNA quasispecies,with no statistically significant differences(P=0.1641).Regarding conservation,information content was equal in RNA and DNA quasispecies in most nt positions[218/357(61.06%)].In 102 of the remaining 139(73.38%),HBV-RNA showed slightly higher *** window analysis identified 4 hyper-conserved sequence fragments in each quasispecies,3 of them coincided between the 2 quasispecies:nts 1258-1286,1545-1573 and *** 2 hyper-variable sequence fragments also coincid

关键词： Hepatitis B virus RNA Hepatitis B X gene Quasispecies Next-generation sequencing Quasispecies conservation Quasispecies complexity

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Computational Analysis of Physicochemical, Pharmacokinetic and Toxicological Properties of Deoxyhypusine synthase Inhibitors with Antimalarial Activity

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Computational Molecular Bioscience 2014年第4期4卷 47-57页

作者： Nayara s.R.silva Luana K.s.Goncalves Jonatas L.Duarte Juliane s.silva César F.santos Francinaldo s.Braga Raí C.silva Josivan s.costa Lorane I.s.Hage-Melim Cleydson B.Rdos santos Laboratory of Modeling and Computational Chemistry Federal University of AmapáCampus Universitário Marco ZeroMacapáBrazil Postgraduate Program in Pharmaceutical sciences Federal University of AmapáMacapáBrazil

Malaria is a parasitic disease which has as etiological agents protozoa of the genus Plasmodium prevalent in tropical countries. The appearance of Plasmodium strains resistant to artemisinin has become necessary the development of new drugs using computational tools to combat this epidemic. Diverse transporter proteins can act as antimalarials targets, thereby being the enzyme deoxyhypusine synthase a promising antimalarial target. The present study aimed to investigate 15 most active inhibitors of deoxyhypusine synthase target, deposited in databases Binding DB, in order to trace a pattern of physicochemical, pharmacokinetic and toxicological properties of the inhibitors for this enzyme and propose new inhibitors of deoxyhypusine synthase target. The physicochemical properties were obtained according to the Lipinski parameters to evaluate oral absorption. Based on the certain properties were proposed three new inhibitors (A, B and C). The ADME/Tox properties were calculated for new inhibitors compared with results of the selected compounds. The fifteen inhibitors for oral administration showed satisfactory results, because they have adapted to the Lipinski parameters. In relation to the penetration of the blood-brain barrier the inhibitors analyzed showed penetration values less than 1, and ranged from 0.0411815 to 0.481764, being that the compound 1 showed value of CBrain/CBlood = 0.135467. Compound B showed a higher strength in plasma protein binding in relation to the compound 1, having a variation be-tween them of ±1.489344. Therefore, the compound B would present a longer halflife compared with compound 1. The proposed compounds showed positive and satisfactory results, being able to reach less adverse effects related to the central nervous system depending of administered dose.

关键词： Antimalarial Activity Deoxyhypusine synthase Inhibitors Physicochemical Property Pharmacokinetic and Toxicological Properties

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Transplantation of bone marrow derived macrophages reduces markers of neuropathology in an APP/Ps1 mouse model

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Translational Neurodegeneration 2019年第1期8卷 412-422页

作者： Luís.costa-Marques Katrin Arnold Marie-Christine Pardon Christiane Leovsky samantha swarbrick Claire Fabian Alexandra stolzing Centre for Biological Engineering School of MechanicalElectrical and Manufacturing EngineeringLoughborough UniversityEpinal WayLoughboroughUK Fraunhofer Institute for Cell Therapy and Immunology LeipzigGermany school of Life sciences Queens Medical CentreUniversity of NottinghamNottinghamUK Leipzig University LeipzigGermany

Background:We investigated early hallmarks of putative therapeutic effects following systemic transplantation of bone marrow derived macrophages(BM-M)in APP/Ps1 transgenic ***:BM-M were transplanted into the tail vein and the animals analysed 1 month ***:BM-M transplantation promoted the reduction of the amyloid beta[37-42]plaque number and size in the cortex and hippocampus of the treated mice,but no change in the more heavily modified pyroglutamate amyloid beta E3 *** number of phenotypically‘small’microglia increased in the *** size decreased overall,indicating a reduction of activated *** expression of interleukin 6 and 10,interferongamma,and prostaglandin E receptor 2 was significantly lower in the hippocampus,while interleukin 10 expression was elevated in the cortex of the treated ***:BM-M systemically transplanted,promote a decrease in neuroinflammation and a limited reversion of amyloid *** exploratory study may support the potential of BM-M or microglia-like cell therapy and further illuminates the mechanisms of action associated with such transplants.

关键词： Amyloid beta Microglia Alzheimer’s disease Cell therapy Neuroinflammation

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Cognitive training in neurodegenerative diseases: a way to boost neuroprotective molecules?

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Neural Regeneration Research 2015年第11期10卷 1754-1755页

作者： Francesco Angelucci Carlo Caltagirone Alberto costa IRCCs santa Lucia Foundation Department of Clinical and Behavioural Neurology Department of systemic Medicine Rome University Tor Vergata Niccolò Cusano University

Neurotrophins,and growth factors in general,are proteins which exert many actions in central nervous system *** promote the survival and neuronal function of neurons and exert neuroprotective effects in pathological models of neurodegenerative *** humans several clinical trials based on the use of these proteins have been carried out. Among them, it is worth to mention gene ther- apy especially in Parkinson＇s disease （PD）（Kordower and Bjorklund, 2013）, and a series of experiments using vectors capable of carrying neurotrophins in the selected target re- gion where they can exert their beneficial action （Ghosh et al., 2014）.

关键词： BDNF a way to boost neuroprotective molecules Cognitive training in neurodegenerative diseases

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Methods and parameters of melting curve analysis for identification of Leishmania species:A scoping review

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Asian Pacific Journal of Tropical Medicine 2021年第12期14卷 528-542页

作者： Juliana J G Ferreira Fernanda s Nascimento Glaucia E B Marcon Eros A de Almeida sandra C B costa Laboratório de Diagnóstico de Doenças Infecciosas por Técnicas de Biologia Molecular Departamento de Clínica MédicaFaculdade de Ciências MédicasUniversidade Estadual de Campinas(UNICAMP)Campinas13083-887SPBrazil Fundação Oswaldo Cruz Mato Grosso do sul(FIOCRUZ Ms) Rua Gabriel Abrão92Jardim das NaçõesCampo Grande79081-746 MSBrazil Grupo de Estudos em Doença de Chagas Departamento de Clínica MédicaFaculdade de Ciências MédicasUniversidade Estadual de Campinas(UNICAMP)Campinas13083-887SPBrazil

Leishmaniasis is a set of diseases with a worldwide distribution that affects mainly economically underprivileged populations in developing countries. It has a major impact on public health, with a global cost of billions of dollars per year. The treatment and control of leishmaniasis vary according to the Leishmania species involved, which require reliable methods for species identification. since most of the currently used methods have limitations, there is a need for assays that allow rapid, precise identification of the offending species. Real-time polymerase chain reactions in conjunction with dissociation curve analysis have been used to detect differences in the DNA composition of selected genes of Leishmania spp. Kinetoplast DNA is the main molecular target used because of its high copy number per parasite, but other targets have also been studied. As part of an effort to establish melting temperature standards for each target gene, we have reviewed the pertinent literature available in public databases, including Pub Med, Web of science, sci ELO and LILACs, using the keywords "Leishmania", "leishmaniasis", "realtime PCR", "melting temperature", and "melting curve", alone or in combination. After applying eligibility criteria, 27 articles were selected for analysis. A considerable variation in the methodologies analyzed was found regarding molecular targets, standardization of the methods, reproducibility and specificity. Because of this, statistical analysis was not performed. In most cases, the methods were able to differentiate the parasite at the subgenus level or few species regardless of the target chosen.

关键词： Leishmaniasis Melting temperature Real-time PCR

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Antibacterial activity and inhibition against staphylococcus aureus NorA efflux pump by ferulic acid and its esterified derivatives

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Asian Pacific Journal of Tropical Biomedicine 2021年第9期11卷 405-413页

作者： Patrícia Gonçalves Pinheiro Gilvandete maria Pinheiro santiago Francisco Erivaldo Freitas da silva Ana Carolina Justino de Araújo Cícera Rejane Tavares de Oliveira Priscilla Ramos Freitas Janaína Esmeraldo Rocha JoséBezerra de Araújo Neto maria Milene costa da silva saulo Relison Tintino Irwin Rose Alencar de Menezes Henrique Douglas Melo Coutinho JoséGalberto Martins da costa Departamento de Química Biológica Programa de Pos-Graduação em Química BiológicaUniversidade Regional do Cariri–URCACrato–CEBrazil Programa de Pós-Graduação em Química Centro de CiênciasUniversidade Federal do Ceará–UFCFortaleza–CEBrazil

Objective:To evaluate the inhibitory activity of ferulic acid and four of its esterified derivatives(methyl,ethyl,propyl,and butyl)against resistance mechanisms in staphylococcus aureus ***:Ferulic acid derivatives were obtained by esterification with methanol,ethanol,propanol,and butanol,and then characterized by hydrogen and carbon-13 nuclear magnetic resonance *** minimum inhibitory concentrations(MIC)of ferulic acid and its esterified derivatives,ethidium bromide,and norfloxacin were obtained using the microdilution test,while the efflux pump inhibition test was conducted by examining reduction in the MICs of norfloxacin and ethidium *** docking was also carried out using the schrodinger suite 2015 molecular modeling software.A three-dimensional model of NorA efflux pump was generated using *** best scoring model was used as a receptor for ligand-receptor ***:The methyl and butyl ester derivatives did not demonstrate significant antimicrobial ***,a significant synergic effect was evidenced when norfloxacin was combined with the ethyl and propyl esterified *** docking study demonstrated favorable energy of interaction between ferulate derivatives and NorA,and amino acid residues TYR57,TYR58,and LEU255 were present commonly in stabilizing all *** PCA analysis corroborated the docking hypothesis that the lipophilic character and hydrogen bond interactions were the most relevant characteristics involved with NorA *** pharmacokinetic parameters of ferulic acid derivatives showed good ADMET properties,demonstrating that they can be easily absorbed and have no effect or inhibit the cytochrome P450 enzyme complex,revealing their potential as drug ***:This study provides strong evidence that the molecular basis for this activity is potentially due to the NorA efflux pump.

关键词： Ferulic acid Esterified derivatives Efflux pump staphylococcus aureus Resistance mechanisms

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Cell membrane and bioactive factors derived from mesenchymal stromal cells: Cell-free based therapy for inflammatory bowel diseases

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World Journal of stem Cells 2019年第9期11卷 618-633页

作者： Fabiany da costa Goncalves Ana Helena Paz Nephrology and Transplantation Internal MedicineErasmus Medical CenterRotterdamGD 3015Netherlands Experimental Research Center Hospital de Clínicas de Porto AlegrePorto AlegreRS 90035-903Brazil

Inflammatory bowel diseases(IBD)are chronic inflammatory disorders of the gastrointestinal tract associated with multifactorial conditions such as ulcerative colitis and Crohn’s *** the underlying mechanisms of IBD remain unclear,growing evidence has shown that dysregulated immune system reactions in genetically susceptible individuals contribute to mucosal ***,conventional treatments have been effective in inducing remission of IBD but not in preventing the relapse of *** this way,mesenchymal stromal cells(MsC)therapy has been recognized as a promising treatment for IBD due to their immunomodulatory properties,ability to differentiate into several tissues,and homing to inflammatory *** so,literature is conflicted regarding the location and persistence of MsC in the body after *** this reason,recent studies have focused on the paracrine effect of the biofactors secreted by MsC,especially in relation to the immunomodulatory potential of soluble factors(cytokines,chemokines,and growth factors)and extracellular vehicles that are involved in cell communication and in the transfer of cellular material,such as proteins,lipids,and nucleic ***,treatment with interferon-γ,tumor necrosis factor-α,and interleukin-1βcauses MsC to express immunomodulatory molecules that mediate the suppression via cell-contact dependent *** together,we present an overview of the role of bioactive factors and cell membrane proteins derived from MsC as a cell-free therapy that can improve IBD treatment.

关键词： Bioactive factors Cell membrane Mesenchymal stem cells Cell-free therapy Inflammatory bowel diseases

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Toxicity assessment of polyethylene microplastics in combination with a mix of emerging pollutants on Physalaemus cuvieri tadpoles

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Journal of Environmental sciences 2023年第5期127卷 465-482页

作者： Amanda Pereira da costa Araújo Thiarlen Marinho da Luz Mohamed Ahmed Ibrahim Ahmed Mir Mohammad Ali Md.Mostafizur Rahman Bojan Nataraj Daniela de Melo e silva DamiàBarceló Guilherme Malafaia Post-Graduation Program in Environmental sciences Federal University of GoiásGoianiaGO 74690-970Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal InstituteUrutaíGO 75790-000Brazil Plant Protection Department Faculty of AgricultureAssiut UniversityAssiut 71526Egypt Department of Aquaculture Faculty of FisheriesAquaculture&Marine ScienceSher-e-Bangla Agricultural UniversityDhaka 1207Bangladesh Department of Environmental sciences Jahangirnagar UniversitySavar 1342Bangladesh Unit of Toxicology Department of ZoologySchool of Life SciencesBharathiar UniversityCoimbatore 641046India Laboratory of Environmental Mutagenesis Federal University of GoiásGoianiaGO 74690-970Brazil Catalan Institute for Water Research(ICRA-CERCA) H_(2)O BuildingScientific and Technological Park of the University of GironaEmili Grahit 101Girona 17003Spain Water and soil Quality Research Group Department of Environmental ChemistryInstitute of Environmental Assessment and Water Research(IDAEA-CSIC)JordiGirona 1826Barcelona 08034Spain Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal InstituteUrutaíGO 75790-000Brazil Post-Graduation Program in Ecology Conservationand BiodiversityFederal University of UberlandiaUberlandiaMG 38400-902Brazil Post-Graduation Programa in Biotechnology and Biodiversity Federal University of GoiásGoianiaGO 74605-050Brazil

studies in recent years have shown that aquatic pollution by microplastics(MPs)can be considered to pose additional stress to amphibian ***,our knowledge of how MPs affect amphibians is very rudimentary,and even more limited is our understanding of their effects in combination with other emerging ***,we aimed to evaluate the possible toxicity of polyethylene MPs(PE-MPs)(alone or in combination with a mix of pollutants)on the health of Physalaemus cuvieri *** 30 days of exposure,multiple biomarkers were measured,including morphological,biometric,and developmental indices,behavioral parameters,mutagenicity,cytotoxicity,antioxidant and cholinesterase responses,as well as the uptake and accumulation of PE-MPs in *** on the results,there was no significant change in any of the parameters measured in tadpoles exposed to treatments,but induced stress was observed in tadpoles exposed to PE-MPs combined with themixture of pollutants,reflecting significant changes in physiological and biochemical *** principal component analysis(PCA)and integrated biomarker response(IBR)assessment,effects induced by pollutants in each test group were distinguished,confirming that the exposure of *** tadpoles to the PE-MPs in combination with a mix of emerging pollutants induces an enhanced stress response,although the uptake and accumulation of PE-MPs in these animalswas ***,our study provides newinsight into the danger to amphibians of MPs coexisting with other pollutants in aquatic environments.

关键词： Amphibians Environmental toxicology Micropollutants Emerging pollutants Aquatic pollution Biomarkers

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