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Oxidative stress,the blood-brain barrier and neurodegenerative diseases:The critical beneficial role of dietary antioxidants

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Acta Pharmaceutica Sinica B 2023年第10期13卷 3988-4024页

作者： Jin Feng Youle Zheng Mingyue Guo Irma Ares marta martínez Bernardo Lopez-Torres maría-Rosa martínez-Larran aga Xu Wang Arturo Anadon maría-Aranzazu martínez National Reference Laboratory of Veterinary Drug Residues(HZAU)and MAO Key Laboratory for Detection of Veterinary Drug Residues Huazhong Agricultural UniversityWuhan 430070China MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products Huazhong Agricultural UniversityWuhan 430070China Department of Pharmacology and Toxicology Faculty of Veterinary MedicineUniversidad Complutense de Madrid(UCM)And Research Institute Hospital 12 de Octubre(i+12)Madrid 28040Spain

In recent years,growing awareness of the role of oxidative stress in brain health has prompted antioxidants,especially dietary antioxidants,to receive growing attention as possible treatments strategies for patients with neurodegenerative diseases(NDs).The most widely studied dietary antioxidants include active substances such as vitamins,carotenoids,flavonoids and *** antioxidants are found in usually consumed foods such as fresh fruits,vegetables,nuts and oils and are gaining popularity due to recently growing awareness of their potential for preventive and protective agents against NDs,as well as their abundant natural sources,generally non-toxic nature,and ease of long-term *** review article examines the role of oxidative stress in the development of NDs,explores the‘two-sidedness’of the blood-brain barrier(BBB)as a protective barrier to the nervous system and an impeding barrier to the use of antioxidants as drug medicinal products and/or dietary antioxidants supplements for prevention and therapy and reviews the BBB permeability of common dietary antioxidant suplements and their potential efficacy in the prevention and treatment of ***,current challenges and future directions for the prevention and treatment of NDs using dietary antioxidants are discussed,and useful information on the prevention and treatment of NDs is provided.

关键词： Dietary antioxidant supplements Oxidative stress Blood-brain barrier Neurodegenerative diseases Vitamins Carotenoids Flavonoids Polyphenols

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Characterization and QTL identification in eggplant introgression lines under two N fertilization levels

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Horticultural Plant Journal 2023年第5期9卷 971-985页

作者： Elena Rosa-martínez Gloria Villanueva Ahmet Sahin Pietro Gramazio maría Dolores García-martínez maría Dolores Raig on Santiago Vilanova Jaime Prohens mariola Plazas Instituto de Conservacion y Mejora de la Agrodiversidad Valenciana Universitat Politecnica de ValenciaCamino de Vera 1446022 ValenciaSpain Instituto de Biología Molecular y Celular de Plantas Consejo Superior de Investigaciones Científicas-Universitat Politecnica de ValenciaCamino de Vera 1446022 ValenciaSpain

Lowering nitrogen inputs is a major goal for sustainable *** the present study,a set of 10 Solanum melongena introgression lines(ILs)developed using Solanum incanum as the exotic donor parent were grown under two nitrogen fertilization doses supplied with the irrigation system:1)8.25 mmol·L-1NH4NO3,corresponding to the high nitrogen treatment(HN),and 2)no external nitrogen supply,corresponding to the low nitrogen treatment(LN).Twenty traits,including plant growth and yield parameters,fruit size and morphology,nitrogen and carbon content in leaf and fruit,and phenolics content in fruit,were *** aim was to select of potential materials for eggplant breeding under low N inputs,as well as to identify and locate putative QTLs associated with the traits *** significant differences were observed between the soil characteristics of the HN and LN treatments,except for nitrogen and iron content,which was slightly lower in the HN,probably as a consequence of higher nutrient removal from soil by plants in the latter *** of variance showed that lowering nitrogen inputs did not significantly affect the final yield,fruit morphology,size and phenolics *** agronomic traits were highly and positively correlated with each other under both treatments,as well as total phenolics with chlorogenic acid *** assessment of the differences between each IL and the recipient parent resulted in the identification of 36 QTLs associated with most of the traits—12 were specific to the HN,17 specific to the LN,and 7 were stable across *** introgressed fragment of *** generally had a negative effect on the trait,except for QTLs for fruit dry matter,for fruit length on chromosome 10 under the HN,and for fruit pedicel length on chromosome 9 under the *** increase over AN-S-26 of the allele of *** for the QTLs detected ranged between-73.98% and 26.03% in HN and-73.67%and 34.43% in *** findings provide useful tools fo

关键词： Solanum melongena Solanum incanum Wild relatives N fertilization Abiotic stress QTL

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Inflammatory status in human hepatic cirrhosis

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World Journal of Gastroenterology 2015年第41期21卷 11522-11541页

作者： maría martínez-Esparza maría Tristán-Manzano Antonio J Ruiz-Alcaraz Pilar García-Penarrubia Departamento de Bioquímica Biología Molecular (B) e Inmunología Facultad de Medicina IMIB Regional Campus of International Excellence "Campus Mare Nostrum" Universidad de Murcia

This review focuses on new findings about the inflammatory status involved in the development of human liver cirrhosis induced by the two main causes, hepatitis C virus(HCV) infection and chronic alcohol abuse, avoiding results obtained from animal models. When liver is faced to a persistent and/or intense local damage the maintained inflammatory response gives rise to a progressive replacement of normal hepatic tissue by non-functional fibrotic scar. The imbalance between tissue regeneration and fibrosis will determine the outcome toward health recovery or hepatic cirrhosis. In all cases progression toward liver cirrhosis is caused by a dysregulation of mechanisms that govern the balance between activation/homeostasis of the immune system. Detecting differences between the inflammatory status in HCV-induced vs alcoholinduced cirrhosis could be useful to identify specific targets for preventive and therapeutic intervention in each case. Thus, although survival of patients with alcoholic cirrhosis seems to be similar to that of patients with HCV-related cirrhosis(HCV-C), there are important differences in the altered cellular and molecular mechanisms implicated in the progression toward human liver cirrhosis. The predominant features of HCV-C are more related with those that allow viral evasion of the immune defenses, especially although not exclusively, inhibition of interferons secretion, natural killer cells activation and T cell-mediated cytotoxicity. On the contrary, the inflammatory status of alcohol-induced cirrhosis is determined by the combined effect of direct hepatotoxicity of ethanol metabolites and increases of the intestinal permeability, allowing bacteria and bacterial products translocation, into the portal circulation, mesenteric lymph nodes and peritoneal cavity. This phenomenon generates a stronger pro-inflammatory response compared withHCV-related cirrhosis. Hence, therapeutic intervention in HCV-related cirrhosis must be mainly focused to counter

关键词： Inflammation Macrophages Cirrhosis Alcohol Hepatitis C virus Cytokines Liver

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Residual activity of cetrimide and chlorhexidine on Enterococcus faecalis-infected root canals

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International Journal of Oral Science 2014年第1期6卷 46-49页

作者： Carmen maría Ferrer-Luque maría Teresa Arias-Moliz Matilde Ruíz-Linares maría Elena martínez García Pilar Baca Department of Stomatology School of Dentistry University of Granada Department of Microbiology School of Dentistry University of Granada

Effective final irrigation regimen is an important step in order to achieve better disinfection and ensure residual antimicrobial effects after root canal preparation. The aim of this study was to compare the residual antimicrobial activity of 0.2% cetrimide, and 0.2% and 2% chlorhexidine in root canals infected with Enterococcus faecalis. Biofilms of E. faecalis were grown on uniradicular roots for 4 weeks. After root canal preparation, root canals were irrigated with 17% ethylenediaminetetraacetic acid （EDTA） to remove the smear layer. The roots were randomly divided into three experimental groups （n=26） according to the final irrigating solution： Group I, 5 mL 0.2% cetrimide; Group II, 5 mL 0.2% chlorhexidine; and Group III, 5 mL 2% chlorhexidine. Samples were collected for 50 days to denote the presence of bacterial growth. The proportion of ungrown specimens over 50 days was evaluated using the nonparametric Kaplan-Meier survival analysis. Differences among groups were tested using the log-rank test and the level of statistical significance was set at P〈0.05. The highest survival value was found with 2% chlorhexidine, showing statistically significant differences from the other two groups. At 50 days, E. faecalisgrowth was detected in 69.23% specimens in Groups I and II, and in 34.61% specimens of Group III. There were no significant differences between 0.2% cetrimide and 0.2% chlorhexidine. Final irrigation with 2% chlorhexidine showed greater residual activity than 0.2% chlorhexidine and 0.2% cetrimide in root canals infected with E. faecalis.

关键词： antimicrobial effects biofilms cetrimide chlorhexidine Enterococcus faecalis final irrigation residual activity

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Novel single-ion conducting polymer electrolytes with high toughness and high resistance against lithium dendrites

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Nano Research 2023年第6期16卷 8457-8468页

作者： David Fraile-Insagurbe Nicola Boaretto Itziar Aldalur Iñigo Raposo Francisco Javier Bonilla Michel Armand maría martínez-Ibañez Centre for Cooperative Research on Alternative Energies CIC energiGUNEBasque Research and Technology Alliance(BRTA)Alava Technology ParkAlbert Einstein 48Vitoria-Gasteiz 01510Spain University of the Basque Country(UPV/EHU) Barrio Sarrienas/nLeioa 48940Spain

Solid-state polymer electrolytes are considered as an alternative to classic liquid electrolytes,particularly for application in highenergy lithium metal *** respect to common dual-ion conductors,single-ion conducting polymer electrolytes(SICPEs)are less affected by lithium dendrites growth and thus are particularly interesting for application in lithium metal *** this work,novel SIC-PEs are developed,based on an ionomer having poly(ethylene-alt-maleimide)backbone and lithium phenylsulfonyl(trifluoromethanesulfonyl)imide pendant moieties,further blended with poly(ethylene oxide)(PEO)and poly(ethylene glycol)dimethyl ether(PEGDME).These SIC-PEs exhibit ionic conductivity around~7×10^(−6)S·cm^(−1) at 70℃,lithium transference number close to unity,and excellent mechanical properties,with fracture toughness over 30 J·cm^(−3).Additionally,the electrolytes show very high resistance against lithium dendrites growth,by cycling for more than 1200 h in Li°symmetric cells at a current density of 0.1 mA·cm^(−2).LiFePO4||Li°cells with these SIC-PEs were cycled at 70℃ and C/10,showing initial capacity of almost 160 mAh·g^(−1)and residual capacity of 45%after 100 *** work shows that single-ion conducting polymer electrolytes based on poly(ethylene-alt-maleimide)backbone are promising materials for application as electrolytes or catholytes in lithium metal polymer batteries.

关键词： single-ion conductors solid-state Li metal batteries polymer electrolytes lithium dendrites transference number mechanical properties

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Narcea—an unknown,ancient cultivated rose variety from northern Spain

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Horticulture Research 2020年第1期7卷 2217-2228页

作者： maría-Carmen martínez José-Luis Santiago Susana Boso Pilar Gago InmaculadaÁlvarez-Acero maría-Estela De Vega Miguel martínez-Bartolomé RafaelÁlvarez-Nogal Pilar Molíst Matteo Caser Valentina Scariot Daniel Gómez-García Misión Biológica de Galicia(CSIC) Carballeira 8Salcedo 36143 PontevedraSpain Instituto de Ciencia y Tecnología de Alimentos y Nutrición(CSIC)(Spain) C/JoséAntonio Novais 1028040 MadridSpain Departamento de Biología Molecular-Área de Biología Celular Universidad de LeónCampus de Vegazana s/n24071 LeónSpain Grupo Neurolamb Biología funcional y Ciencias de la SaludUniversidad de Vigo(Spain)36310 As Lagoas-MarcosendeSpain Department of Agricultural Forest and Food SciencesUniversity of TorinoLargo Paolo Braccini 210095 GrugliascoTurinItaly Instituto Pirenaico de Ecología(CSIC) Dpto.Conservación de Ecosistemas NaturalesAvda.Montaña S/NZaragoza50016 ZaragozaSpain

The present work reports the discovery and the complete characterisation of an ancient cultivated rose variety found growing in a private garden in the southwest of the Principality of Asturias(northern Spain).The variety is here given the name *** majority of roses currently cultivated belong to the so-called group of‘Modern Roses’,all of which were obtained after 1867 via artificial crosses and improvement *** are destined for ornamental *** the 19th century,the great majority of the many ancient cultivated roses in Europe were used in perfumery and cosmetics,or had medicinal *** damascena and Rosa centifollia are still grown and used by the French and Bulgarian perfume *** Asturian Massif of the Cantabrian Mountain Range provides a natural habitat for some 75%of the wild members of the genus Rosa,but until now there was no evidence that this area was home to ancient cultivated roses.A complete botanical description is here provided for a discovered ancient *** is also characterised according to a series of sequence tagged microsatellite sites,and its agronomic features are *** addition,a histological description(optical and scanning electronic microscope studies)of the petals is offered,along with an analysis of the volatile compounds present in these organs as determined by solid phase microextraction and gas chromatography-mass *** results reveal the uniqueness of this ancient type of rose and suggest it may be of interest to the perfume industry.

关键词： ancient southwest majority

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Therapy with stem cells in inflammatory bowel disease

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World Journal of Gastroenterology 2014年第5期20卷 1211-1227页

作者： maría del Pilar martínez-Montiel Gonzalo Jesús Gómez-Gómez Ana Isabel Flores IBD Unit Department of Gastroenterology Universitary Hospital 12 Octubre Medicine Regenerative Group Investigation Center 12 Octubre Investigation Institute

Inflammatory bowel disease (IBD) affects a part of the young population and has a strong impact upon quality of life. The underlying etiology is not known, and the existing treatments are not curative. Furthermore, a significant percentage of patients are refractory to therapy. In recent years there have been great advances in our knowledge of stem cells and their therapeutic applications. In this context, autologous hematopoietic stem cell transplantation (HSCT) has been used in application to severe refractory Crohn’s disease (CD), with encouraging results. Allogenic HSCT would correct the genetic defects of the immune system, but is currently not accepted for the treatment of IBD because of its considerable risks. Mesenchymal stem cells (MSCs) have immune regulatory and regenerative properties, and low immunogenicity (both autologous and allogenic MSCs). Based on these properties, MSCs have been used via the systemic route in IBD with promising results, though it is still too soon to draw firm conclusions. Their local administration in perianal CD is the field where most progress has been made in recent years, with encouraging results. The next few years will be decisive for defining the role of such therapy in the management of IBD.

关键词： Mesenchymal stem cell, Inflammatory bowel disease, Crohn’ s disease, Ulcerative colitis, Haematopoietic stem cell transplantation

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How does anodization time affect morphological and photocatalytic properties of iron oxide nanostructures?

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Journal of Materials Science & Technology 2020年第3期38卷 159-169页

作者： Bianca Lucas-Granados Rita Sánchez-Tovar Ramón MFernández-Domene Josémaría Estívalis-martínez JoséGarcía-Antón Ingeniería Electroquímica y Corrosión(IEC).Instituto Universitario de Seguridad Industrial Radiofísica y Medioambiental(ISIRYM)Universitat Politècnica de ValènciaCamino de Vera s/n46022ValenciaSpain Departmento de Ingeniería Química Universitat de ValènciaAv de les Universitatss/n46100 BurjassotSpain

Iron oxide nanostructures are promising materials to be used as photocatalysts in different photoelectrochemical applications. There are different techniques in order to synthesize these nanostructures, but one of the most inexpensive and simple method is electrochemical anodization. This method can lead to different nanostructures by controlling its parameters. Anodization time is one of the most critical parameters since it considerably affects the properties of the obtained nanostructures. In this work, different anodization times(5, 10, 15, 30 and 60 min) were studied. The resulting nanotubes were characterized by field emission scanning electron microscopy, Raman laser confocal microscopy, water splitting measurements, Mott-Schottky analysis and electrochemical impedance spectroscopy, in order to test their viability for being used as photocatalysts in photoelectrochemical applications. Results showed that the best photocurrent density values in water splitting tests(0.263 m A m-2) were achieved for the sample anodized for 10 min under hydrodynamic conditions.

关键词： Iron oxide Metallic nanostructures Photoelectrochemistry Anodization Time

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Risk Factors and Gender Differences for Depression in Chilean Older Adults:A Cross-Sectional Analysis from the National Health Survey 2016–2017

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International Journal of Mental Health Promotion 2022年第5期24卷 679-697页

作者： Gabriela Nazar Carlos-maría Alcover Yeny Concha-Cisternas Igor Cigarroa Ximena Díaz-martínez mariela Gatica-Saavedra Fabián Lanuza Ana maría Leiva-Ordónez maría Adela martínez-Sanguinetti Miquel martorell Fanny Petermann-Rocha Claudia Troncoso-Pantoja Carlos Celis-Morales Departamento de Psicología Facultad de Ciencias SocialesUniversidad de ConcepciónConcepciónChile Centro de Vida Saludable Universidad de ConcepciónConcepciónChile Departamento de Psicología Facultad de Ciencias de la SaludUniversidad Rey Juan CarlosMadridEspaña Pedagogía en Educación Física Facultad de EducaciónUniversidad AutónomaTalcaChile Escuela de Kinesiología Facultad de SaludUniversidad Santo TomásLosÁngelesChile Grupo de Investigación Calidad de Vida Departamento de Ciencias de la EducaciónUniversidad del BiobíoChillánChile Depto de Psiquiatría y Salud Mental Facultad de MedicinaUniversidad de ConcepciónConcepciónChile Centro de Epidemiología Cardiovascular y Nutricional(EPICYN) Facultad de MedicinaUniversidad de La FronteraTemucoChile Biomarkers and Nutrimetabolomics Laboratory Department of NutritionFood Sciences and GastronomyFood Technology Reference Net(XIA)Nutrition and Food Safety Research Institute(INSA)Faculty of Pharmacy and Food SciencesUniversity of BarcelonaBarcelona08028Spain Instituto de Anatomía Histología y PatologíaFacultad de MedicinaUniversidad Austral de ChileValdiviaChile Instituto de Farmacia Facultad de CienciasUniversidad Austral de ChileValdiviaChile Departamento de Nutrición y Dietética Facultad de Farmacia.Universidad de ConcepciónConcepciónChile Facultad de Medicina Universidad Diego PortalesSantiagoChile BHF Glasgow Cardiovascular Research Centre Institute of Cardiovascular and Medical SciencesUniversity of GlasgowGlasgowUK Centro de Investigación en Educación y Desarrollo(CIEDE-UCSC).Departamento de Salud Pública Facultad de MedicinaUniversidad Católica de la Santísima ConcepciónConcepciónChile Laboratorio de Rendimiento Humano Grupo de Estudio en EducaciónActividad Física y Salud(GEEAFyS)Universidad Católica del MauleTalcaChile

Depressive disorders are recognized as one of the most common mental health conditions across different age ***,the risk factors associated with depression among older people from low-and middle-income countries remains *** study aims to identify socio-demographic,health and psychosocial-related factors associated with depression in Chilean older adults.A cross-sectional study was carried out in a representative sample of 1,765 adults aged≥60 years participants from the Chilean National Health Survey 2016–***-sion was assessed with the Composite International Diagnostic Interview(CIDI-SF).Associations between the exposure variables and depression were investigated using Poisson regression *** mainﬁndings indi-cated that women showed higher likelihood of depression than men(Prevalence Ratio(PR)=2.6[95%CI:1.40;4.89]).An increased likelihood of depression was found in older adults with chronic pain,multimorbidity(≥2 diseases),previous diagnose of depression,high perception of stress,ﬁnancial stress,and difﬁculties for social *** women,higher likelihood of depression was found for those with the frailty phenotype(PR:8.53[95%CI:1.68;43.32]),rheumatoid arthritis(PR:2.41[95%CI:1.34;4.34]),insomnia(PR:2.99[95%CI:1.74;5.12])and low self-rated well-being(PR:4.94[95%CI:2.26;10.79]).Men who were divorced(PR:7.10[95%CI:1.44;34.90])or widowed(PR:10.83[95%CI:3.71;31.58]),obese(PR:5.08[95%CI:1.48;17.42])and who had asthma(PR:7.60[95%CI:2.31;24.99])were associated with higher odds of *** currentﬁndings may have clinical implications for the early identiﬁcation of older adults more susceptible to depression and also suggest the need to implement cultural and age-sensitive strategies to promote mental health in late life.

关键词： Depression older adults aging late-life depression risk factors

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T-cell allorecognition of donor glutathione S-transferase T1 in plasma cell-rich rejection

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World Journal of Hepatology 2017年第27期9卷 1115-1124页

作者： maría José martínez-Bravo Berta Sánchez José Manuel Sousa maría José Acevedo Miguel Angel Gómez-Bravo Antonio Núnez-Roldán Isabel Aguilera Immunology Service Instituto de Biomedicina de Sevilla Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla Digestive Diseases Service Hospital Universitario Virgen del Rocío Liver Transplant Unit Hospital Universitario Virgen del Rocío

AIM To investigate the role of glutathione S-transferase T1 donor-specific T lymphocytes in plasma cell-rich rejection of liver *** The study group included 22 liver transplant patients. Among them, 18 patients were mismatched for the glutathione S-transferase T1(GSTT1) alleles(don+/rec-), and 4 were matched(don+/rec+). Seven of the mismatched patients produced anti-GSTT1 antibodies and developed plasma cell-rich rejection(former de novo immune hepatitis). For the detection of specific Tlymphocytes, peripheral blood mononuclear cells were collected and stored in liquid nitrogen. The memory T cell response was studied by adding to the cell cultures to a mix of 39 custom-made, 15-mer overlapping peptides, which covered the entire GSTT1 amino acid sequence. The specific cellular response to peptides was analyzed by flow cytometry using the markers CD8, CD4, IL-4 and IFNγ.RESULTS Activation of CD8^+ T cells with different peptides was observed exclusively in the group of patients with plasma-cell rich rejection(3 out of 7), with production of IL-4 and/or IFNγ at a rate of 1%-4.92% depending on the peptides. The CD4^+ response was most common and not exclusive for patients with the disease, where 5 out of 7 showed percentages of activated cells from 1.24% to 31.34%. Additionally, two patients without the disease but with the mismatch had cells that became stimulated with some peptides(1.45%-5.18%). Highly unexpected was the finding of a double positive CD4^+CD8^(low) T cell population that showed the highest degree of activation with some of the peptides in 7 patients with the mismatch, in 4 patients with plasma cell-rich rejection and in 3 patients without the disease. Unfortunately, CD4^+CD8^(low) cells represent 1% of the total number of lymphocytes, and stimulation could not be analyzed in 9 patients due to the low number of gated cells. Cells from the 4 patients included as controls did not show activation with any of the peptides. CONCLUSION Patients

关键词： Donor-specific glutathione S-transferase T1 antibodies Indirect presentation Glutathione S-transferase T1-memory T cells De novo immune hepatitis Donor/recipient mismatch

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