Search results for "Antioxidante"

showing 10 items of 32 documents

Mutual influences between Nitric Oxide and Paraoxonase 1

2019

Este artículo se ha publicado de forma definitiva en: https://www.mdpi.com/2076-3921/8/12/619 Este artículo pertenece al número especial "Paraoxonase in Oxidation and Inflammation". One of the best consolidated paradigms in vascular pharmacology is that an uncontrolled excess of oxidizing chemical species causes tissue damage and loss of function in the endothelial and subendothelial layers. The fact that high-density lipoproteins play an important role in preventing such an imbalance is integrated into that concept, for which the expression and activity of paraoxonases is certainly crucial. The term paraoxonase (aryldialkyl phosphatase, EC 3.1.8.1) encompasses at least three distinct isofo…

0301 basic medicineAntioxidantantioxidantPhysiologymedicine.medical_treatmentClinical BiochemistryPhosphataseCellOxidative phosphorylationReview030204 cardiovascular system & hematologyBiochemistryNitric oxide03 medical and health scienceschemistry.chemical_compound0302 clinical medicinenitric oxidemedicinevascular inflammationVasculitis - Tratamiento.Molecular Biologychemistry.chemical_classificationreactive oxygen speciesReactive oxygen speciesÓxido nítrico - Uso terapéutico.biologyParaoxonaseserum lipoproteinCell BiologyParaoxonase - Therapeutic use.Paraoxonasa - Uso terapéutico.paraoxonaseNitric oxide synthaseLipoproteínas.030104 developmental biologymedicine.anatomical_structurechemistryBiochemistryAntioxidantes.biology.proteinVasculitis - Treatment.Antioxidants.Nitric oxide - Therapeutic use.Lipoproteins.
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A Pharmacological Update of Ellagic Acid.

2018

Este artículo se encuentra disponible en la página web de la revista en la siguiente URL: https://www.thieme-connect.com/products/ejournals/pdf/10.1055/a-0633-9492.pdf This is a pre-print of an article published in Ríos, JL., Giner, RM., Marín, M. and Recio, MC. (2018). A pharmacological update of ellagic acid. Planta Medica, vol. 84, n. 15, pp. 1068-1093. The final authenticated version is available online at: https://doi.org/10.1055/a-0633-9492 Este es el pre-print del siguiente artículo Ríos, JL., Giner, RM., Marín, M. and Recio, MC. (2018). A pharmacological update of ellagic acid. Planta Medica, vol. 84, n. 15, pp. 1068-1093 que se ha publicado de forma definitiva en https://doi.org/10…

0301 basic medicineEllagic acid - Pharmacokinetics.Antioxidantmedicine.medical_treatmentMetaboliteInterleukin-1betaAnti-Inflammatory AgentsPharmaceutical ScienceApoptosisPharmacologyProtective AgentsProteína quinasa.NeuroprotectionAntioxidantsAnalytical Chemistry03 medical and health scienceschemistry.chemical_compound0302 clinical medicineEllagic AcidGlycationDrug DiscoverymedicineHumansProtein kinases.Cell ProliferationPharmacologyMetabolic SyndromeAldose reductaseInterleukin-6Tumor Necrosis Factor-alphaMetabolismo - Trastornos.Organic ChemistryNF-kappa BLipid metabolismAtherosclerosisEllagic acid - Physiological effect.NeuroprotectionMetabolism disorder030104 developmental biologyComplementary and alternative medicinechemistryÁcido elágico - Efectos fisiológicos.Antioxidantes.Ácido elágico - Farmacocinética.030220 oncology & carcinogenesisMolecular MedicineMetabolism - Disorders.Antioxidants.Ellagic acidPlanta medica
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Oxidative stress and frailty : a systematic review and synthesis of the best evidence

2017

Objective Oxidative stress (OS) is associated with accelerated aging. Previous studies have suggested a possible relationship between OS and frailty but this association remains unclear. We conducted a systematic review to investigate potential interactions between OS and frailty. Methods A systematic literature search of original reports providing data on ‘OS and antioxidant’ parameters and frailty was carried out across major electronic databases from inception until May 2016. Cross-sectional/case control and longitudinal studies reporting data on the association between frailty and anti-oxidants-OS biomarkers were considered for inclusion. Results were summarized with a synthesis based o…

0301 basic medicineOncologyGerontologyGenetics and Molecular Biology (all)AgingCross-sectional studyalpha-TocopherolAntioxidantesIsoprostanesmedicine.disease_causeBiochemistryAnti-oxidantAntioxidants0302 clinical medicineLongitudinal StudiesAged 80 and overFrailtyGlutathione DisulfideObstetrics and GynecologyGlutathione8-Hydroxy-2'-DeoxyguanosineSystematic searchAnti-oxidant; Frail; Frailty; Oxidative stress; Biochemistry Genetics and Molecular Biology (all); Obstetrics and Gynecologymedicine.medical_specialtyFrail ElderlyGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencesFrailInternal medicinemedicineHumansFrail elderlySulfhydryl CompoundsAgedAldehydesbusiness.industryCase-control studyFrailty Frail Oxidative stress Anti-oxidantEstresse OxidativoDeoxyguanosineMean ageOxidized GlutathioneOxidative Stress030104 developmental biologyCross-Sectional Studies1-Alkyl-2-acetylglycerophosphocholine EsteraseBest evidencebusinessReactive Oxygen Species030217 neurology & neurosurgeryOxidative stressBiomarkers
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Aceites esenciales: productos antimicrobianos y antioxidantes naturales en la industria agroalimentaria

2020

[ES] Los consumidores son conscientes del peligro derivado del uso de antioxidantes y antimicrobianos sintéticos en la industria agroalimentaria, demandando alternativas más seguras y ecológicas. En este estudio, se ha determinado la actividad antioxidante de aceites esenciales comerciales mediante el método DPPH y su efecto antimicrobiano frente a la bacteria Pseudomonas syringae y el hongo fitopatógeno Fusarium oxysporum a través del empleo del método estandarizado de disco. Los aceites esenciales de clavo, ajedrea, canela y orégano, así como carvacrol, mostraron la máxima actividad antioxidante, comparable a antioxidantes establecidos. El aceite esencial de gaulteria fue el más potente i…

AntioxidantDPPHActividad antifúngicamedicine.medical_treatmentAntioxidantesAntioxidantslaw.inventionchemistry.chemical_compoundAntioxidant activitylawFusarium oxysporum2302.10 Aceites EsencialesIndustria agroalimentariamedicineBIOQUIMICA Y BIOLOGIA MOLECULARCarvacrolAntifungal activityReference standardsAgri-food industryEssential oilAntifungalsbiologyTraditional medicinebiology.organism_classificationAntimicrobialAntibacterialchemistryEssential oilsAceites esencialesWinter savoryActividad antibacterianaAntibacterial activityActividad antioxidanteAntifúngicosAntibacterianoAgrifood industry
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Azaciclofanos modificados para el estudio de moléculas de interés biológico

2018

Como miembro investigador en grupo de Química Supramolecular de la Universitat de València el autor de la presente tesis ha orientado su trabajo a desarrollar y cumplir los objetivos marcados en el mismo, que consisten en el diseño, síntesis y estudio de compuestos bioactivos con acción antioxidante, antitumoral y/o antiparasitaria. Así pues, se diseñaron y sintetizaron siete nuevos ligandos poliamínicos para la obtención de nuevos complejos antioxidantes así como para evaluar su interacción con secuencias de ácidos nucleicos. Este proceso requirió, en algunos casos, del desarrollo y la puesta a punto de nuevas rutas sintéticas. Dado que las poliaminas poseen por definición varios grupos su…

AzaciclofanosARNUNESCO::QUÍMICAenfermedades neurodegenerativascobreADNzincAntioxidanteácido nucleicoSOD:QUÍMICA [UNESCO]
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Oxidative stress is associated with an increased antioxidant defense in elderly subjects: a multilevel approach.

2014

© 2014 Fonseca et al. Background: Studies of associations between plasma GSH-Px activity and cardiovascular risk factors have been done in humans, and contradictory results have been reported. The aim of our study was to assess the association between the scavenger antioxidant enzyme glutathione peroxidase (GSH-Px) activity in plasma and the presence of novel and classical cardiovascular risk factors in elderly patients. Copyright: Methods: We performed a cross-sectional study with baseline data from a subsample of the PREDIMED (PREvención con DIeta MEDiterránea) study in Spain. Participants were 1,060 asymptomatic subjects at high risk for cardiovascular disease (CVD), aged 55 to 80, selec…

GerontologyMaleAgingAntioxidantEpidemiologymedicine.medical_treatmenthumanosPhysiologymedicine.disease_causeAntioxidantschemistry.chemical_compoundanálisis de regresiónBlood plasmaMolecular Cell BiologyMedicine and Health Sciencesmediana edadCellular Stress Responsesglutatión peroxidasachemistry.chemical_classificationAged 80 and overancianoeducation.field_of_studyMultidisciplinaryGlutathione peroxidaseConfoundingQREpidemiology of AgingMiddle AgedPredimedestrés oxidativoCell ProcessesResearch DesignEpidemiological Methods and StatisticsRegression AnalysisMedicineFemaleAnatomyResearch ArticleClinical Research DesignEstrès oxidatiuSciencePopulationCardiologyResearch and Analysis MethodsMedicina preventivaEnvellimentantioxidantesmedicineHumansanálisis multifactorialMortalityeducationCardiovascular Disease EpidemiologyAgedPreventive medicineGlutathione PeroxidasePopulation BiologyCholesterolbusiness.industryBiology and Life SciencesGlutathioneCell BiologyCardiovascular riskBiomarker EpidemiologyOxidative StressCross-Sectional StudieschemistryOxidative stressMultivariate AnalysisCardiovascular AnatomyMorbiditybusinessOxidative stressestudios transversalesPLoS ONE
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The nutrigenetic influence of the interaction between dietary vitamin E and TXN and COMT gene polymorphisms on waist circumference: a case control st…

2015

Background Abdominal obesity (AO) is a common modifiable risk factor for certain non-communicable diseases associated with enhanced oxidative stress (OS). The objective of this work was to investigate whether the interaction between antioxidant vitamin intake and OS-related polymorphisms modulates gene-associated anthropometry in a Spanish population. Methods A total of 246 subjects with AO, and 492 age and gender matched non-AO subjects were included in the study. Anthropometric, biochemical, and OS parameters, and antioxidant dietary intake data were assessed using validated procedures. DNA from white blood cells was isolated and the genotype of seven polymorphisms from genes involved in …

MaleAntioxidantPolimorphismmedicine.medical_treatment:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Thioredoxins [Medical Subject Headings]Antioxidantes:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [Medical Subject Headings]AntioxidantsVitamin E intakeObesidad abdominalchemistry.chemical_compoundNutrigenomicsThioredoxinsPolymorphism (computer science):Anatomy::Cells::Blood Cells::Leukocytes [Medical Subject Headings]Risk FactorsGenotypeVitamin E:Chemicals and Drugs::Nucleic Acids Nucleotides and Nucleosides::Nucleosides::Deoxyribonucleosides::Deoxyguanosine [Medical Subject Headings]:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Physiological Effects of Drugs::Growth Substances::Micronutrients::Vitamins [Medical Subject Headings]:Phenomena and Processes::Metabolic Phenomena::Metabolism::Oxidative Stress [Medical Subject Headings]Abdominal obesityNutrigenómicaMedicine(all)AnthropometryAge FactorsGeneral MedicineAbdominal obesity:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight::Overweight::Obesity::Obesity Abdominal [Medical Subject Headings]Middle Aged:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Models Statistical::Logistic Models [Medical Subject Headings]Waist circumferenceDietaFemale:Phenomena and Processes::Genetic Phenomena::Genotype [Medical Subject Headings]medicine.symptomFactores de riesgoVitaminAdultmedicine.medical_specialtyGenotypeVitamina ECatechol-O-methyltransferaseBiology:Phenomena and Processes::Physiological Phenomena::Nutritional Physiological Phenomena::Diet [Medical Subject Headings]:Phenomena and Processes::Genetic Phenomena::Genetic Structures::Genome::Genome Components::Genes::Genes Reporter [Medical Subject Headings]Catechol O-Methyltransferase:Chemicals and Drugs::Biological Factors::Pigments Biological::Carotenoids::Retinoids::Vitamin A [Medical Subject Headings]Polymorphism Single NucleotideGeneral Biochemistry Genetics and Molecular BiologySex FactorsInternal medicine:Chemicals and Drugs::Inorganic Chemicals::Oxygen Compounds::Reactive Oxygen Species [Medical Subject Headings]:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Physiological Effects of Drugs::Protective Agents::Antioxidants [Medical Subject Headings]medicinePerímetro abdominal:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Waist Circumference [Medical Subject Headings]:Chemicals and Drugs::Heterocyclic Compounds::Heterocyclic Compounds 2-Ring::Benzopyrans::Vitamin E [Medical Subject Headings]HumansObesityPolymorphismThioredoxinAgedCatechol-O-methyl transferaseBiochemistry Genetics and Molecular Biology(all)Vitamin EResearchCase-control studyGenes informadores:Disciplines and Occupations::Natural Science Disciplines::Biological Science Disciplines::Biology::Genetics::Genomics::Nutrigenomics [Medical Subject Headings]DietOxidative StressEndocrinologychemistrySpainOxidative stressCase-Control Studies:Chemicals and Drugs::Enzymes and Coenzymes::Enzymes::Transferases::One-Carbon Group Transferases::Methyltransferases::Catechol O-Methyltransferase [Medical Subject Headings]:Chemicals and Drugs::Nucleic Acids Nucleotides and Nucleosides::Nucleic Acids::DNA [Medical Subject Headings]Genotipo
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The hMTH1 paradox: antioxidants recommended in cancer?

2014

Summary Activated Ras GTPase signalling is a critical driver of oncogenic transformation and malignant disease. Cellular models of RAS-dependent cancers have been used to identify experimental small-molecules, such as SCH51344, but their molecular mechanism of action remains generally enigmatic. Here, using a chemical proteomic approach we identify the target of SCH51344 as the human mutT homologue MTH1, a nucleotide pool sanitising enzyme. Loss-of-function of MTH1 impaired growth of KRAS tumour cells whereas MTH1 overexpression mitigated sensitivity toward SCH51344. Searching for more drug-like inhibitors, we identified the kinase inhibitor crizotinib as a nanomolar suppressor of MTH1 acti…

MalePyridinesMEDLINEDNA repairAntineoplastic AgentsAntioxidantesSaludBiologyBioinformaticsstereoselectivityBiochemistryArticleText miningNeoplasmsmedicineAnimalsHumanscancerMolecular BiologyProtein Kinase Inhibitorscrizotinibbusiness.industryNucleotidesCancerdrugCell BiologyCáncermedicine.diseasePhosphoric Monoester HydrolasesMTH1DNA Repair EnzymesPyrazolesFemalebusiness
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Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial

2014

[Background] Polyphenols may lower the risk of cardiovascular disease (CVD) and other chronic diseases due to their antioxidant and anti-inflammatory properties, as well as their beneficial effects on blood pressure, lipids and insulin resistance. However, no previous epidemiological studies have evaluated the relationship between the intake of total polyphenols intake and polyphenol subclasses with overall mortality. Our aim was to evaluate whether polyphenol intake is associated with all-cause mortality in subjects at high cardiovascular risk.

MaleriesgoMediterranean dietmodelos de riesgos proporcionaleshumanosPhysiologyDiet MediterraneanAntioxidantsRisk FactorsSistema cardiovascular--MalaltiesCause of DeathNeoplasmsflavonoidesEpidemiologyStilbenesHydroxybenzoates1741-7015mediana edadCause of deathAged 80 and overMedicine(all)neoplasiasancianodietaHazard ratiofood and beveragesGeneral MedicineMiddle AgedCardiovascular diseaseAll-cause mortalityMetabolismeCardiovascular DiseasesPolifenolsFemaleResearch ArticleRiskPREDIMEDmedicine.medical_specialtyenfermedades cardiovascularesLignansInsulin resistanceMediterranean cookingMedical statisticscausas de muertehidroxibenzoatosMediterranean dietCuina mediterràniaantioxidantesmedicineMortalitatHumansfactores de riesgoFood consumptionMortalitypolifenolesAgedProportional Hazards ModelsFlavonoidsProportional hazards modelbusiness.industryPolyphenolsPREDIMED studyPolyphenol intakemedicine.diseaseConfidence intervalBiotechnologyDietMetabolismPolyphenolCommentarybusinessEstadística mèdicaConsum d'aliments
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Implicaciones del óxido nítrico y otras moléculas con potencial redox en el glaucoma primario de ángulo abierto

2008

espanolObjetivos: El oxido nitrico (ON) y otras moleculas con potencial red-ox estan relacionados con mecanismos de transmision de senales, incluyendo la regulacion de la permeabilidad vascular y la homeostasis. Nos proponemos investigar la presencia de ON y de especies reactivas del oxigeno (EROx) en el humor acuoso y su relacion con los mecanismos patogenicos del glaucoma primario de angulo abierto (GPAA). Metodos: Se ha analizado bioquimicamente el humor acuoso, que fue extraido al comienzo de la cirugia de segmento anterior, de dos grupos de individuos: 1) pacientes programados para trabeculectomia de Watson, por empeoramiento de los parametros de riesgo del glaucoma (GG; n=60) y 2) gru…

Ophthalmologyespecies reactivas del oxigenoestrés oxidativobusiness.industryantioxidantesMedicineGlaucomaóxido nítricobusinessMolecular biologyArchivos de la Sociedad Española de Oftalmología
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