Search results for "Reactive"

showing 10 items of 1469 documents

Reactive stepping behaviour in response to forward loss of balance predicts future falls in community-dwelling older adults.

2013

Background: a fall occurs when an individual experiences a loss of balance from which they are unable to recover. Assessment of balance recovery ability in older adults may therefore help to identify individuals at risk of falls. The purpose of this 12-month prospective study was to assess whether the ability to recover from a forward loss of balance with a single step across a range of lean magnitudes was predictive of falls. Methods: two hundred and one community-dwelling older adults, aged 65–90 years, underwent baseline testing of sensorimotor function and balance recovery ability followed by 12-month prospective falls evaluation. Balance recovery ability was defined by whether particip…

MaleAgingTime Factorsfalls preventionPoison controlSingle stepSuicide preventionOccupational safety and healthDevelopmental psychologyRisk FactorsOdds RatioOrthopedics and Sports MedicineProspective Studiesta315Prospective cohort studyGaitPostural Balanceolder adultsAged 80 and overAge FactorsHuman factors and ergonomicsBaseline testingGeneral MedicineAdaptation Physiologicalreactive steppingSensation DisordersFemaleIndependent LivingTimed up and gomedicine.medical_specialtyPhysical Therapy Sports Therapy and RehabilitationBody weightRisk Assessmentbalance recoveryPhysical medicine and rehabilitationInjury preventionmedicineHumansBalance (ability)AgedExercise interventionbusiness.industryOdds ratioforward loss of balanceLogistic ModelsageingPhysical therapyAccidental FallsGeriatrics and GerontologybusinessAge and ageing
researchProduct

C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) as inflammation markers in elderly patients with stable chronic obstructive pulmona…

2010

Erythrocyte sedimentation rate (ESR) might represent a less expensive alternative to C-reactive protein (CRP) as a marker of systemic inflammation in stable chronic obstructive pulmonary disease (COPD). We tried to verify this hypothesis in 223 consecutive outpatients aged 65 years or more with stable COPD enrolled in a multicenter observational study. Patients were grouped according to normal/increased ESR/CRP values and groups were compared with regard to clinical and laboratory characteristics. Correlations between CRP, ESR and selected variables of interest were assessed by Spearman's ζ-test and multivariate linear regression analysis. CRP was weakly and inversely correlated with the fo…

MaleAgingmedicine.medical_specialtyHealth (social science)AnemiaBlood SedimentationSettore MED/10 - Malattie Dell'Apparato RespiratorioSystemic inflammationSeverity of Illness IndexGastroenterologyPulmonary Disease Chronic ObstructiveInternal medicineBayesian multivariate linear regressionSeverity of illnessmedicineHumansCOPDHypoalbuminemiaAgedInflammationCOPDmedicine.diagnostic_testbiologybusiness.industryC-reactive proteinPrognosismedicine.diseaseSurgeryC-Reactive ProteinErythrocyte sedimentation ratebiology.proteinFemaleGeriatrics and Gerontologymedicine.symptombusinessGerontologyBiomarkersFollow-Up Studies
researchProduct

Inflammatory activation and endothelial dysfunction markers in patients with permanent atrial fibrillation: A cross-sectional study

2020

In recent years a growing body of evidence supported the role of inflammation in the initiation, maintenance and outcome of atrial fibrillation (AF). Nevertheless, despite a large amount of information, whether AF or the underlying structural heart disease (SHD) is the cause of the inflammatory process is still under debate. We, therefore, sought to determine if the inflammatory process reflect an underlying disease or the arrhythmia 'per se'. We evaluated plasma levels of soluble Interleukin 2 Receptor Alpha (sIL-2Rα), TNF-α and IL-18 in 100 consecutive patients with permanent AF, (43 with a SHD and 57 without a SHD) compared to 121 age and sex-matched controls which had normal sinus rhyth…

MaleAgingmedicine.medical_specialtyHeart diseaseAlpha (ethology)InflammationDiseaseSystemic inflammationendothelial dysfunctionInternal medicineAtrial FibrillationmedicineHumansEndothelial dysfunctionReactive hyperemiaAgedAged 80 and overInflammationTumor Necrosis Factor-alphabusiness.industryInterleukin-18Interleukin-2 Receptor alpha SubunitAtrial fibrillationAtrial fibrillation Cytokines Endothelial dysfunction Inflammation Structural heart diseaseCell BiologyMiddle Agedmedicine.diseasestructural heart diseasecytokinesCross-Sectional StudiesLogistic ModelsROC CurveCase-Control StudiesCardiologyFemaleEndothelium Vascularmedicine.symptombusinessBiomarkersResearch Paper
researchProduct

Leptin concentration and risk of impaired physical function in older adults: the Seniors-ENRICA cohort

2016

This is a pre-copyedited, author-produced PDF of an article accepted for publication in Age and Ageing following peer review. The version of record Alberto Lana, Ellen Struijk, Pilar Guallar-Castillón, Jose María Martín-Moreno, Fernando Rodríguez Artalejo, Esther Lopez-Garcia; Leptin concentration and risk of impaired physical function in older adults: the Seniors-ENRICA cohort. Age Ageing 45.6 (2016): 819-826 is available online at: http://dx.doi.org/ 10.1093/ageing/afw142

MaleAgingmedicine.medical_specialtyMedicinaPhysical fitnessPhysiology030204 cardiovascular system & hematologyRisk Assessmentleptin03 medical and health sciencesmobility limitation0302 clinical medicineInsulin resistancePredictive Value of TestsRisk FactorsInternal medicineActivities of Daily LivingOdds RatiomedicineHumans030212 general & internal medicineProspective cohort studyGeriatric Assessmentbusiness.industryLeptinAge FactorsGeneral MedicineOdds ratioMiddle Agedmedicine.diseaseprospective studiesBiomechanical PhenomenaUp-RegulationagedC-Reactive ProteinLogistic ModelsEndocrinologyQuartileAgeingCohortphysical fitnessFemaleSelf ReportInsulin ResistanceGeriatrics and GerontologybusinessBiomarkersbiological markers
researchProduct

SARS CoV2 infection _The longevity study perspectives

2021

Graphical abstract

MaleAgingssRNA single-stranded RNARFLP restriction fragment length polymorphismHSPs heat shock proteinsReviewPTMs post-translational modificationsSevere Acute Respiratory SyndromeBiochemistryHIV-1 human immunodeficiency virus-1TNF-α tumor necrosis factor-αEC endothelial cells0302 clinical medicineFluAV influenza A virusI insertionMedicineIFN-γ interferon-γDIC disseminated intravascular coagulationPCR Polymerase Chain Reactionmedia_commonAged 80 and overLongevityRBD receptor-binding domainNeurologyLongevity modelMI myocardial infarctionNK natural killerhPIV2 human parainfluenza virus type 2media_common.quotation_subjectResearching genetic basis of resistance and potential pharmacological targetsLongevityDBP diastolic blood pressureNF-Kb nuclear transcription factor kBRANTES regulated upon activation normal T cell expressed and secretedMphi human macrophages03 medical and health sciencesCox 2 cyclooxygenase 2ORF open reading framePT prothrombin timeSettore MED/05 - Patologia ClinicaHumansMolecular BiologyInflammatory genesARDS acute respiratory distress syndromeNO nitric oxideD deletionCpGIs CpG islandsT2DM type 2 diabetes mellitusmedicine.diseaseFDP fibrin degradation products030104 developmental biologySARS CoV2 severe acute respiratory syndrome Coronavirus 2 virusImmunologyBMI body max indexItalian nonagenarians/centenariansRSV respiratory syncytial virusComplication030217 neurology & neurosurgeryMAPK mitogen-activated protein kinaseIP-10 IFN-γ -Inducible Protein 1040301 basic medicineAT1R activity of angiotensin 1 receptorsDCs dentritic cellsSSCP single strand conformation polymorphismACE/DD polymorphism of the angiotensin converting enzymeFGF21 fibroblast growth factor 21TLR4 toll-like receptor 4NAD nicotinamide adenine dinucleotideACE angiotensin-I converting enzymeAT2R activity of angiotensin 2 receptorsCOVID-19 Coronavirus disease 2019Respiratory distressACE2 angiotensin converting enzyme 2MKP-1 mitogen-activated protein kinase phosphatase-1 ()PD protease domainSNP single nucleotide polymorphismEH essential hypertensionTNFR tumor necrosis factor receptorINR international normalized ratio of the prothrombin timePAI-1 plasminogen activator inhibitor-1Ang angiotensinLPS lipopolysaccharideMCP1 monocyte chemoattractant protein-1medicine.symptomaPTT partial thromboplastin timeBiotechnologyDUSP1 dual specificity phosphatase 1Coronavirus disease 2019 (COVID-19)PC prostate cancerRAS renin-angiotensin aldosterone systemCCR5Δ32 genetic variant of chemokine receptorCOVID-19 Researching genetic basis of resistance and potential pharmacological targets Italian nonagenarians/centenarians Longevity modelAsymptomaticSARS-1 severe acute respiratory syndrome virus 1SIRT-1 Sirtuin 1Th1 t-helper lymphocyte type 1Immune systemROS reactive oxygen speciesTGF-β transforming growth factor betaET-1 endothelin-1ComputingMethodologies_COMPUTERGRAPHICSADAM-17 metallopeptidase domain 17business.industrySARS-CoV-2SBP systolic blood pressureCOVID-19HDACs histone deacetylasesComorbidityImmune Systembusiness5-LO lipoxygenase 5Ageing Research Reviews
researchProduct

Elevated advanced oxidation protein products (AOPPs) indicate metabolic risk in severely obese children.

2012

Abstract Background and aims The assessment of oxidative stress may aid in the identification of subsequent metabolic risk in obese children. The objective of this study was to determine whether the plasma level of advanced oxidation protein products, analyzed with a recently proposed modified assay that involves a delipidation step (mAOPPs), was related to metabolic risk factors (MRFs) in severely obese children. Methods and results The plasma levels of mAOPPs were determined by spectrophotometry in 54 severely obese and 44 healthy children. We also measured lipid peroxidation biomarkers (thiobarbituric acid-reactive substances, malondialdehyde, and 8-isoprotane F 2α ) and sulfhydryl group…

MaleAntioxidantEndocrinology Diabetes and Metabolismmedicine.medical_treatmentMedicine (miscellaneous)Protein oxidationDinoprostSeverity of Illness IndexLipid peroxidationchemistry.chemical_compoundRisk FactorsMalondialdehydeAge of OnsetChildMetabolic SyndromeNutrition and DieteticsMalondialdehydeLipidsUp-RegulationSpectrophotometryHypertensionFemaleCardiology and Cardiovascular MedicineOxidation-Reductionmedicine.medical_specialtyAdolescentRisk AssessmentThiobarbituric Acid Reactive SubstancesInsulin resistanceInternal medicinemedicineHumansObesitySulfhydryl CompoundsDyslipidemiasChi-Square Distributionbusiness.industryProteinsmedicine.diseaseOxidative StressEndocrinologychemistryAdvanced oxidation protein productsSpainLinear ModelsLipid PeroxidationInsulin ResistancebusinessBody mass indexDyslipidemiaBiomarkersNutrition, metabolism, and cardiovascular diseases : NMCD
researchProduct

Effect of gender on mitochondrial toxicity of Alzheimer's Abeta peptide.

2007

The aim of this article is to review the role of mitochondria in the pathogenesis of Alzheimer's disease. Additionally, the effect of gender on the incidence of Alzheimer's disease and the pathophysiological mechanisms involved will be discussed. Mitochondria, in the presence of Alzheimer's amyloid-beta peptide, increase the formation of reactive oxygen species which act both as damaging agents and also as signaling molecules. These radicals, in fact, unleash a mechanism involving the liberation of cytochrome c that leads to neuronal apoptosis. Notably, young females appear protected against the mitochondrial toxicity of amyloid-beta, likely due to the upregulation of antioxidant enzymes wh…

MaleAntioxidantPhysiologymedicine.medical_treatmentClinical BiochemistryPharmacologyMitochondrionBiologymedicine.disease_causeBiochemistryp38 Mitogen-Activated Protein Kinaseschemistry.chemical_compoundDownregulation and upregulationAlzheimer DiseasemedicineHumansMolecular BiologyGeneral Environmental Sciencechemistry.chemical_classificationReactive oxygen speciesAmyloid beta-PeptidesEstrogensCell Biologymedicine.diseaseOxidantsMitochondriaEnzyme ActivationMitochondrial toxicitychemistryBiochemistryToxicityGeneral Earth and Planetary SciencesPhytoestrogensFemaleOxidative stressAntioxidantsredox signaling
researchProduct

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
researchProduct

Cellular damage to human hepatocytes through repeated application of 5-aminolevulinic acid.

2003

Abstract Background/Aims : 5-Aminolevulinic acid (ALA), a precursor of porphyrins is used for photodynamic diagnosis and therapy within topical or systemic applications. A potential toxic effect on the human liver is of major interest and therefore we investigated the impact of a repeated application of ALA without illumination on cultures of human hepatocytes. Methods : After ALA treatment of hepatocytes in vitro the porphyrin synthesis, albumin secretion, liver-specific enzyme release, and malondialdehyde levels were determined. In order to reduce levels of reactive oxygen substances, mannitol and the antioxidant enzymes superoxide dismutase and catalase were supplemented. Results : Porph…

MaleAntioxidantPorphyrinsCell Survivalmedicine.medical_treatmentIn Vitro TechniquesAntioxidantsLipid peroxidationSuperoxide dismutasechemistry.chemical_compoundmedicineHumansCells Culturedchemistry.chemical_classificationPhotosensitizing AgentsHepatologyProtoporphyrin IXbiologyDose-Response Relationship DrugSuperoxide DismutaseAlbuminAminolevulinic AcidMalondialdehydeEnzymeBiochemistrychemistryCatalasebiology.proteinHepatocytesLipid PeroxidationReactive Oxygen SpeciesJournal of hepatology
researchProduct

Oxidative stress in patients with Alzheimer's disease: Effect of extracts of fermented papaya powder

2015

Brain tissue is particularly susceptible to oxidative stress (OS). Increased production of reactive oxygen species (ROS), reduced antioxidant systems, and decreased efficiency in repairing mechanisms have been linked to Alzheimer’s disease (AD). Postmortem studies in AD patients’ brains have shown oxidative damage markers (i.e., lipid peroxidation, protein oxidative damage, and glycoxidation). Fermented papaya (FPP, a product ofCarica papaya Linnfermentation with yeast) is a nutraceutical supplement with favorable effects on immunological, hematological, inflammatory, and OS parameters in chronic/degenerative diseases. We studied 40 patients (age 78.2 ± 1.1 years), 28 AD patients, and 12 co…

MaleAntioxidantSettore MED/09 - Medicina Internamedicine.medical_treatmentReview Articlemedicine.disease_causeAntioxidantsLipid peroxidationchemistry.chemical_compoundchemistry.chemical_classificationAged 80 and overbiologyCaricaBrainBiochemistry8-Hydroxy-2'-DeoxyguanosineFemalePowdersCaricaAlzheimer's diseaseAntioxidantCase-Control StudieReactive Oxygen SpecieOxidation-Reductionlcsh:RB1-214Humanmedicine.medical_specialtyUrinary systemImmunologyPowderAlzheimer DiseaseInternal medicinemedicinelcsh:PathologyHumansAgedDietary SupplementReactive oxygen speciesCase-control studyDeoxyguanosineOxidative StrePlant PreparationCell Biologybiology.organism_classificationmedicine.diseaseAged; Aged 80 and over; Alzheimer Disease; Antioxidants; Brain; Carica; Case-Control Studies; Deoxyguanosine; Dietary Supplements; Female; Fermentation; Humans; Lipid Peroxidation; Male; Oxidation-Reduction; Oxygen; Plant Preparations; Powders; Reactive Oxygen Species; Oxidative Stress; Immunology; Cell BiologyOxygenOxidative StressEndocrinologychemistryCase-Control StudiesDietary SupplementsFermentationPlant PreparationsLipid PeroxidationReactive Oxygen SpeciesOxidative stress
researchProduct