Search results for " platelet activation"

showing 3 items of 3 documents

POSTPRANDIAL HYPERGLYCEMIA IS A DETERMINANT OF PLATELET ACTIVATION IN EARLY 2 DIABETES MELLITUS

2010

BACKGROUND: Chronic hyperglycemia is a major contributor to in vivo platelet activation in diabetes mellitus. OBJECTIVES: To evaluate the effects of acarbose, an alpha-glucosidase inhibitor, on platelet activation and its determinants in newly diagnosed type 2 diabetic patients. METHODS: Forty-eight subjects (26 males, aged 61 +/- 8 years) with early type 2 diabetes (baseline hemoglobin A(1c) < or = 7% and no previous hypoglycemic treatment) were randomly assigned to acarbose up to 100 mg three times a day or placebo, and evaluated every 4 weeks for 20 weeks. The main outcome measures were urinary 11-dehydro-thromboxane (TX)B(2) (marker of in vivo platelet activation) and 8-iso-prostaglandi…

Blood GlucoseMaleTime FactorsSettore MED/09 - Medicina InternaDinoprostpostprandial hyperglycemia; platelet activationMedicineEnzyme InhibitorsSettore MED/49 - Scienze Tecniche Dietetiche Applicatepostprandial hyperglycemiaAcarboseplateletHemoglobin AHematologyMiddle AgedPostprandial PeriodP-SelectinPostprandialTreatment OutcomeC-Reactive ProteinItalyFemaleBiological MarkersAcarboseType 2medicine.drugacarbose platelet activation postprandial hyperglycemia type 2 diabetes mellitusmedicine.medical_specialtySettore BIO/14 - FARMACOLOGIAUrinary systemCD40 LigandGlycosylatedArginineExcretionBlood Glucose; Time Factors; Lipid Peroxidation; Middle Aged; Hemoglobin A Glycosylated; Postprandial Period; Diabetes Mellitus Type 2; Enzyme Inhibitors; Hypoglycemic Agents; P-Selectin; Platelet Activation; Aged; CD40 Ligand; Treatment Outcome; Male; Female; Thromboxane B2; Dinoprost; Italy; Arginine; Acarbose; Double-Blind Method; Humans; Biological Markers; Hyperglycemia; alpha-Glucosidases; C-Reactive ProteinDouble-Blind MethodInternal medicineDiabetes mellitusDiabetes MellitusHypoglycemic AgentsHumansGlycoside Hydrolase InhibitorsPlatelet activationGlycemicAgedGlycated Hemoglobinbusiness.industryType 2 Diabetes Mellitusalpha-Glucosidasesmedicine.diseasePlatelet ActivationThromboxane B2EndocrinologyDiabetes Mellitus Type 2HyperglycemiaLipid PeroxidationbusinessBiomarkers
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Enhanced lipid peroxidation and platelet activation as potential contributors to increased cardiovascular risk in the low-HDL phenotype

2013

Background Low high‐density lipoprotein ( HDL ) levels are major predictors of cardiovascular ( CV ) events, even in patients on statin treatment with low‐density lipoprotein ( LDL ) at target. In animal models HDL s protect LDL from oxidation and blunt platelet activation. Our study aimed to examine whether HDL levels are related to in vivo oxidative stress and platelet activation, as determinants of atherothrombosis. Methods and Results Urinary 8‐iso‐PGF 2α and 11‐dehydro‐TXB 2 , in vivo markers of oxidative stress and platelet activation, respectively, were measured in 65 coronary heart disease (CHD) normocholesterolemic patients with HDL ≤35 mg/ dL , and in 47 CHD patients with HDL &gt…

MaleSettore MED/09 - Medicina InternaCoronary DiseaseDinoprostmedicine.disease_causeLipid peroxidationchemistry.chemical_compoundFenofibrateHDL cholesterolRisk FactorsCoronary Heart Diseaseoxidative stressMyocardial infarctionOriginal ResearchHypolipidemic AgentsplateletHypoalphalipoproteinemiasFenofibrateMiddle AgedAged; Arachidonic Acids; Case-Control Studies; Cholesterol HDL; Coronary Disease; Cross-Sectional Studies; Dinoprost; Exercise; Exercise Therapy; Female; Fenofibrate; Humans; Hypoalphalipoproteinemias; Hypolipidemic Agents; Lipid Peroxidation; Male; Middle Aged; Oxidative Stress; Phenotype; Platelet Activation; Risk Factors; Sedentary Lifestyle; Thromboxane B2; Cardiology and Cardiovascular MedicineExercise TherapyCholesterolPhenotypeSedentary LifestyleFemalelipids (amino acids peptides and proteins)exercise HDL cholesterol oxidative stress plateletCardiology and Cardiovascular Medicinemedicine.drugmedicine.medical_specialtyHDLArachidonic AcidsDiabetes mellitusInternal medicinemedicineHumansPlatelet activationExerciseAgedCreatininebusiness.industryCholesterol HDLCase-control studyPlatelet Activationmedicine.diseaseThromboxane B2Cross-Sectional StudiesEndocrinologychemistryCase-Control StudiesLipid PeroxidationSedentary BehaviorbusinessOxidative stressLipoproteinEuropean Heart Journal
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SPH modeling of blood flow in cerebral aneurysms

Gli aneurismi cerebrali sono dilatazioni patologiche di arterie cerebrali. Queste patologie hanno un intrinseco rischio di rottura con conseguenti emorragie intracraniche. Sebbene i meccanismi di formazione, crescita e rottura degli aneurismi cerebrali non sono ancora del tutto compresi, è comunemente riconosciuto che in questi processi i fattori emodinamici giocano un ruolo molto importante. Le simulazioni numeriche possono fornire utili informazioni sull'emodinamica e possono essere usate per applicazioni cliniche. Nei tradizionali metodi numerici basati su una griglia di calcolo il processo di discretizzazione dei vasi cerebrali sui quali insiste un aneurisma è molto complesso. D’altra p…

mechanical platelet activationSmoothed particle hydrodynamics (SPH)parallel computingHemodynamicsMulti-blockOpen-boundariescerebral aneurysmsPressure Poisson EquationSettore ICAR/01 - Idraulica
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