Search results for "Proteinase"

showing 10 items of 407 documents

Non-invasive markers of airway inflammation and remodeling in childhood asthma

2009

To evaluate the relationship between pro-inflammatory and pro-remodeling mediators and severity and control of asthma in children, the levels of IL-8, MMP-9, TIMP-1 in induced sputum supernatants, the number of sputum eosinophils, as well as FeNO, were investigated in 35 asthmatic children, 12 with intermittent (IA) and 23 with moderate asthma (MA), and 9 controls (C). The patients with asthma were followed for 1 yr and sputum was obtained twice during the follow-up. Biomarker levels were correlated with the number of exacerbations. We found that IL-8, MMP-9, TIMP-1 and the numbers of eosinophils in induced sputum, as well as FeNO, were increased in children with IA and MA in comparison to …

MaleHumans; Disease Progression; Asthma; Child; Leukocyte Count; Eosinophils; Bronchitis; Follow-Up Studies; Sputum; Interleukin-8; Adolescent; Tissue Inhibitor of Metalloproteinase-1; Matrix Metalloproteinase 9; Biological Markers; Female; MaleAdolescentImmunologyInflammationDiseaseEosinophilBronchitiFollow-Up StudieLeukocyte CountImmunology and AllergyMedicineHumansNONINVASIVE MARKERS INFLAMMATION REMODELING CHILDHOOD ASTHMAProspective cohort studyBronchitisChildAsthmaChildhood asthmaTissue Inhibitor of Metalloproteinase-1business.industryInterleukin-8Airway inflammationSputumrespiratory systemmedicine.diseaseAsthmarespiratory tract diseasesEosinophilsMatrix Metalloproteinase 9Pediatrics Perinatology and Child HealthImmunologyBiological MarkerDisease ProgressionSputumBiomarker (medicine)Femalemedicine.symptombusinessBiomarkersHumanFollow-Up Studies
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The Carbon Monoxide-Releasing Molecule Tricarbonyldichlororuthenium(II) Dimer Protects Human Osteoarthritic Chondrocytes and Cartilage from the Catab…

2008

We have investigated the effects of a carbon monoxide-releasing molecule, tricarbonyldichlororuthenium(II) dimer (CORM-2), on catabolic processes in human osteoarthritis (OA) cartilage and chondrocytes activated with interleukin-1beta. In these cells, proinflammatory cytokines induce the synthesis of matrix metalloproteinases (MMPs) and aggrecanases, including members of a disintegrin and metalloproteinase with thrombospondin domain (ADAMTS) family, which may contribute to cartilage loss. CORM-2 down-regulated MMP-1, MMP-3, MMP-10, MMP-13, and ADAMTS-5 in OA chondrocytes, and it inhibited cartilage degradation. These effects were accompanied by increased aggrecan synthesis and collagen II e…

MaleInterleukin-1betaDown-RegulationMatrix metalloproteinaseProtective AgentsProinflammatory cytokineExtracellular matrixChondrocytesOsteoarthritisOrganometallic CompoundsmedicineExtracellularHumansAggrecansCollagen Type IIAggrecanAgedPharmacologyCarbon MonoxideThrombospondinChemistryCartilageADAMTSMatrix MetalloproteinasesCell biologyCartilagemedicine.anatomical_structureBiochemistryMolecular MedicineFemaleJournal of Pharmacology and Experimental Therapeutics
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Mast cell targeting hampers prostate adenocarcinoma development but promotes the occurrence of highly malignant neuroendocrine cancers

2011

Abstract Mast cells (MC) are c-Kit–expressing cells, best known for their primary involvement in allergic reactions, but recently reappraised as important players in either cancer promotion or inhibition. Here, we assessed the role of MCs in prostate tumor development. In prostate tumors from both tumor-prone transgenic adenocarcinoma of the mouse prostate (TRAMP) mice and human patients, MCs are specifically enriched and degranulated in areas of well-differentiated (WD) adenocarcinoma but not around poorly differentiated (PD) foci that coexist in the same tumors. We derived novel TRAMP tumor cell lines, representative of WD and PD variants, and through pharmacologic stabilization or geneti…

MaleOncologyCancer Researchmedicine.medical_specialtyEpithelial-Mesenchymal TransitionMice TransgenicAdenocarcinomaBiologymedicine.disease_causeCell DegranulationMiceProstate cancerProstateCell Line TumorInternal medicineTumor MicroenvironmentmedicineMast CellAnimalsHumansMast CellsReceptors Tumor Necrosis Factor Member 25Tumor microenvironmentAdenocarcinoma; Animals; Carcinoma Neuroendocrine; Cell Degranulation; Cell Line Tumor; Disease Progression; Epithelial-Mesenchymal Transition; Humans; Male; Mast Cells; Matrix Metalloproteinase 9; Mice; Mice Inbred C57BL; Mice Transgenic; Prostatic Neoplasms; Proto-Oncogene Proteins c-kit; Receptors Tumor Necrosis Factor Member 25; Tumor Microenvironment; Cancer Research; OncologyAnimalProstatic NeoplasmsCancermedicine.diseasehumanitiesCarcinoma NeuroendocrineMice Inbred C57BLProto-Oncogene Proteins c-kitmedicine.anatomical_structureMatrix Metalloproteinase 9OncologyTumor progressionProstatic NeoplasmDisease ProgressionAdenocarcinomaCarcinogenesisHumanTramp
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The effect of biological sealants and adhesive treatments on matrix metalloproteinase expression during renal injury healing

2017

Background Renal injuries are relatively common in cases of abdominal trauma. Adhesives and sealants can be used to repair and preserve damaged organs. Using a rat model, this study explores the activity of different matrix metalloproteinases (MMP) during the healing of renal injuries treated by two biological adhesives (TachoSil and GelitaSpon) and a new synthetic elastic cyanoacrylate (Adhflex). Methods Renal traumatic injuries were experimentally induced in 90 male Wistar rats by a Stiefel Biopsy Punch in the anterior aspect of the left kidney. Animals were divided into five groups: 1, sham non-injured (n = 3); 2, non-treated standard punch injury (n = 6); 3, punch injury treated with Ta…

MalePathologyCritical Care and Emergency MedicinePhysiology030232 urology & nephrologylcsh:MedicineMatrix metalloproteinasePathology and Laboratory MedicineKidneyMMP8Biochemistrylaw.invention0302 clinical medicinelawMedicine and Health Scienceslcsh:ScienceImmune ResponseTrauma MedicineKidneyMultidisciplinaryProteasesTachoSilEnzymesmedicine.anatomical_structureTraumatic injuryCyanoacrylate030220 oncology & carcinogenesisPhysical SciencesAnatomyTraumatic InjuryResearch Articlemedicine.medical_specialtyHistologyMaterials ScienceImmunologyFibrin Tissue Adhesive03 medical and health sciencesSigns and SymptomsDiagnostic MedicineAdhesivesTissue RepairmedicineAnimalsRats WistarMaterials by AttributeInflammationWound Healingbusiness.industrylcsh:RBiology and Life SciencesProteinsKidneysRenal Systemmedicine.diseaseMatrix MetalloproteinasesAbdominal traumaEnzymologyMetalloproteaseslcsh:QPhysiological ProcessesbusinessWound healingCollagensPLOS ONE
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Associations of rs3918242 and rs2285053 MMP-9 and MMP-2 polymorphisms with the risk, severity, and short- and long-term complications of degenerative…

2016

Abstract Background Degenerative forms of mitral valve diseases (MVDs) are very complex pathologies. Thus, it is difficult to make generalizations about the disease pathways or genetic risk factors contributing to these diseases. However, a key role of metalloproteinases (MMPs) in their pathophysiology is emerging. Thus, we performed for the first time a perspective study to assess eventual associations of some functional single nucleotide polymorphisms (SNPs) in MMP-2 and MMP-9 genes with the MVD risk, symptom severity, and short- and long-term (4.8 years) complications. Materials and methods For this purpose, 90 patients and two control groups were genotyped for rs3918242, rs243865, and r…

MalePathologyHeart Valve DiseasesDisease030204 cardiovascular system & hematologyMatrix metalloproteinasers3918242 rs243865 rs2285053 MMP-2 and MMP-9 gene SNPDegenerative forms of mitral valve diseases; Management and outcome; Metalloproteinases; rs3918242 rs243865 rs2285053 MMP-2 and MMP-9 gene SNPs; Aged; Cohort Studies; Female; Genetic Predisposition to Disease; Genotype; Heart Valve Diseases; Humans; Male; Matrix Metalloproteinase 2; Matrix Metalloproteinase 9; Middle Aged; Mitral Valve; Prospective Studies; Risk Factors; Polymorphism Single Nucleotide0403 veterinary scienceCohort Studies0302 clinical mediciners2285053 MMP-2 and MMP-9 gene SNPsRisk FactorsGenotypeManagement and outcomeNatriuretic peptideProspective StudiesProspective cohort studyMVDSMetalloproteinaseDegenerative forms of mitral valve diseases04 agricultural and veterinary sciencesGeneral MedicineSingle NucleotideMiddle AgedMetalloproteinasesPathophysiologyMatrix Metalloproteinase 9Matrix Metalloproteinase 2Mitral ValveFemalers3918242Cardiology and Cardiovascular MedicineDegenerative forms of mitral valve diseasemedicine.medical_specialtyGenotype040301 veterinary sciencesmedicine.drug_class2734Single-nucleotide polymorphismDegenerative forms of mitral valve diseases; Management and outcome; Metalloproteinases; rs3918242 rs243865 rs2285053 MMP-2 and MMP-9 gene SNPs; Cardiology and Cardiovascular Medicine; 2734Polymorphism Single NucleotidePathology and Forensic Medicine03 medical and health sciencesInternal medicinemedicineHumansGenetic Predisposition to Diseasers243865PolymorphismAgedbusiness.industrySettore MED/23 - Chirurgia Cardiacabusiness
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A polymorphism in the cyclooxygenase 2 gene as an inherited protective factor against myocardial infarction and stroke

2004

CONTEXT: Myocardial infarction (MI) and ischemic stroke are thought to be caused by matrix digestion by metalloproteinases (MMPs) leading to rupture of atherosclerotic plaques. Production of macrophage MMP-2 and MMP-9 is induced by cyclooxygenase 2 (COX-2) and prostaglandin E(2) synthesis. Although COX-2 expression may be genetically determined, the relation between COX-2 polymorphisms and the risk of MI and stroke is unclear. OBJECTIVE: To investigate the relationship between the -765G-->C polymorphism of the COX-2 gene and clinically evident plaque rupture. DESIGN, SETTING, AND PARTICIPANTS: Prospective, matched case-control study conducted between March 2002 and October 2003 among 864 pa…

MalePathologySettore MED/09 - Medicina InternaArteriosclerosisCarotid StenosiMyocardial InfarctionInfarctionProstacyclinGastroenterologyCohort StudiesCerebrovascular AccidentrteriosclerosiRisk FactorsGenotypeMedicineCarotid StenosisProspective StudiesMyocardial infarctionMembrane ProteinStrokebiologyGeneral MedicineMiddle AgedIsoenzymesStrokePhenotypeMatrix Metalloproteinase 9Matrix Metalloproteinase 2FemaleHumanmedicine.drugmedicine.medical_specialtyGenotypeArteriosclerosiInternal medicineDiabetes mellitusHumansPolymorphism Geneticbusiness.industryC-reactive proteinProstaglandin-Endoperoxide SynthaseMembrane Proteinsmedicine.diseaseEpoprostenolIsoenzymeProspective StudieAtheromaCyclooxygenase 2Prostaglandin-Endoperoxide Synthasesbiology.proteinCohort Studiebusiness
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Intramural neovascularization and haemorrhages are major long‐term effects of intravascularγ‐radiation after stenting

2003

Structural changes that might influence the structural integrity of the vessel in response to intravascular brachytherapy (IVB) and stenting were examined, focus being on the importance of neovascularization in rabbit stented arteries. Stents were implanted in the infrarenal aortas of rabbits, immediately followed by gamma IVB or a sham radiation procedure, and the arteries harvested at 6 months. Labelling for von Willebrand factor showed an increase in adventitial and medial neovascularization in irradiated versus control arteries group (5.04+/-0.89 versus 1.51+/-0.23 mm(-2), respectively; p=0.004). Moreover, intramedial haemorrhages (free hemosiderin deposition) and inflammation (macropha…

MalePathologymedicine.medical_specialtyBrachytherapyHemorrhageInflammationMatrix metalloproteinaseCoronary RestenosisNeovascularizationHemosiderin DepositionVon Willebrand factorReference ValuesmedicineAnimalsRadiology Nuclear Medicine and imagingAorta AbdominalVascular Diseasesγ radiationNeovascularization PathologicRadiological and Ultrasound Technologybiologybusiness.industryStructural integrityIntravascular brachytherapyGamma RaysMetalloproteasesbiology.proteinStentsCollagenRabbitsmedicine.symptombusinessInternational Journal of Radiation Biology
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TIMP expression in toxic and cholestatic liver injury in rat.

1997

Abstract Background/Aims: Hepatic fibrosis is a dynamic pathological process with a net accumulation of extracellular matrix proteins. Recent evidence suggests that besides their increased synthesis, inhibition of matrix degradation plays a significant role. ECM degradation occurs via metalloproteinases which are inhibited in situ by specific tissue inhibitors of metalloproteinases (TIMPs). The aim of our studies was to determine the expression of TIMPs during toxic liver injury and cholestatic liver injury leading to fibrosis. Methods: We examined the expression of TIMP-1, -2 and -3 in two different rat models for liver injury (intraperitoneal CCl 4 injection and bile duct ligation) by Nor…

MalePathologymedicine.medical_specialtyIn situ hybridizationCholestasis IntrahepaticMatrix metalloproteinaseBiologyRats Sprague-DawleyCholestasisFibrosisInternal medicinemedicineAnimalsNorthern blotIn Situ HybridizationLiver injuryTissue Inhibitor of Metalloproteinase-3Tissue Inhibitor of Metalloproteinase-2Tissue Inhibitor of Metalloproteinase-1HepatologyCarbon Tetrachloride PoisoningAcute-phase proteinTissue Inhibitor of Metalloproteinasesmedicine.diseaseRatsEndocrinologyLiverChemical and Drug Induced Liver InjuryHepatic fibrosisJournal of hepatology
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Vasculitic wallenberg syndrome with detection of anti-proteinase 3 antibodies in the cerebrospinal fluid of a patient with severe Wegener's granuloma…

2000

MalePathologymedicine.medical_specialtyMyeloblastinAutoantigensAntibodies Antineutrophil CytoplasmicCerebrospinal fluidProteinase 3MyeloblastinMedicineHumansLungLateral Medullary SyndromeAutoantibodiesTransplantationKidneyLateral medullary syndromeLungmedicine.diagnostic_testbusiness.industrySerine EndopeptidasesAutoantibodyGranulomatosis with PolyangiitisMagnetic resonance imagingMiddle Agedmedicine.diseaseMagnetic Resonance Imagingmedicine.anatomical_structureNephrologybusinessTomography X-Ray ComputedNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association
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Matrix metalloproteinases production in malignant pleural effusions after talc pleurodesis

2003

SUMMARY In this study we have evaluated the modifications of matrix metalloproteinases (MMPs) in malignant pleural fluids taken from patients suffering from lung cancer and treated with intrapleural talc instillation to induce pleurodesis. Furthermore, we have analysed the variations of some inflammatory mediators (C-reactive protein, α-1 antitrypsin) and of a protein (plasminogen) involved in MMP activation. In all patients the clinical improvement after talc pleurodesis was followed by a reduction in MMP-1, TIMP-1, C-reactive protein, α-1 antitrypsin and plasminogen activity. Furthermore, MMP-9 levels were variable; in fact, in some patients they were high at the beginning of treatment, i…

MalePathologymedicine.medical_specialtyPleural effusionmedicine.medical_treatmentImmunologyMatrix metalloproteinaseTalcStatistics NonparametricClinical StudiesHumansImmunology and AllergyMedicineLung cancerPleurodesisAgedTissue Inhibitor of Metalloproteinase-1business.industryTalc pleurodesisA proteinPlasminogenMiddle Agedmedicine.diseaseMatrix MetalloproteinasesPleural Effusion MalignantC-Reactive ProteinMatrix Metalloproteinase 9Talcalpha 1-AntitrypsinImmunologyPleural fluidFemaleMatrix Metalloproteinase 1businessPleurodesismedicine.drugClinical and Experimental Immunology
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