Search results for " Collage"

showing 10 items of 161 documents

Musica del siglo XX en Palermo

1997

L'articolo traccia un quadro della scena musicale palermitana, a partire dal secondo dopoguerra sino al periodo delle Settimane Internazionali Nuova Musica (1960-68) e all'inizio degli anni Novanta. Particolare attenzione è riservata all'esperienza di compositori come Marco Betta, Carmelo Caruso, Federico Incardona e Giovanni Sollima.

Settore L-ART/07 - Musicologia E Storia Della MusicaItalia Palermo Novecento Musica Settimane Internazionali Nuova Musica Collage Marco Betta Carmelo Caruso Federico Incardona Salvatore Sciarrino Giovanni Sollima.
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Use of porcine collagen matrix (Mucograft®) to promote the wound healing in the oral cavity

2015

The aim of this study was to evaluate the use of a new collagen matrix (Mucograft®; Geistlich Pharma AG, Wol- husen, Switzerland) in the soft tissue reconstruction after excisional biopsy. The healing of soft tissues after bioptical excision tends to heal by secondary intention. To avoid this, the soft tissue grafts can be harvested from the palate, retromolar pad, or (if available) edentulous site. Disadvantages of harvesting the graft from the retromolar pad and edentulous site are minimal amount of tissue availability and thinner grafts are obtained. The use of collagen matrix is also reported in literature and could represent an optimal solution in the future. Mucograft® is a pure colla…

Settore MED/28 - Malattie Odontostomatologicheporcine collagen matrix wound healing oral cavity graft bioptical excision oral disease
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A replacement for MMC ? Ologen Collagen Matrix for Tissue Repair

2012

Settore MED/30 - Malattie Apparato VisivoMitomycin CTrabeculectomyOlogen Collagen Matrix
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Human Biliverdin Reductase Suppresses Goodpasture Antigen-binding Protein (GPBP) Kinase Activity

2010

The Ser/Thr/Tyr kinase activity of human biliverdin reductase (hBVR) and the expression of Goodpasture antigen-binding protein (GPBP), a nonconventional Ser/Thr kinase for the type IV collagen of basement membrane, are regulated by tumor necrosis factor (TNF-α). The pro-inflammatory cytokine stimulates kinase activity of hBVR and activates NF-κB, a transcriptional regulator of GPBP mRNA. Increased GPBP activity is associated with several autoimmune conditions, including Goodpasture syndrome. Here we show that in HEK293A cells hBVR binds to GPBP and down-regulates its TNF-α-stimulated kinase activity; this was not due to a decrease in GPBP expression. Findings with small interfering RNA to h…

Small interfering RNAKinaseBiliverdin reductaseNF-κBCell BiologyBiologyBiochemistryMolecular biologyType IV collagenchemistry.chemical_compoundchemistryTranscriptional regulationKinase activitySignal transductionMolecular BiologyJournal of Biological Chemistry
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Synthesis and degradation of type IV collagen in rat skeletal muscle during immobilization in shortened and lengthened positions

2003

Aim:  Type IV collagen is a major protein in basement membranes surrounding and supporting skeletal muscle cells. In the present study, we tested the hypotheses that immobilization down-regulates synthesis and up-regulates degradation of type IV collagen in skeletal muscle. Methods:  mRNA level and concentration of type IV collagen as well as mRNA levels and activities of proteins involved in its degradation were analysed from soleus (SOL), gastrocnemius (GAS) and extensor digitorum longus muscles after immobilization in shortened and lengthened positions for 1, 3 and 7 days. Results:  Following immobilization, type IV collagen mRNA level was decreased in SOL and GAS suggesting down-regulat…

Soleus musclemedicine.medical_specialtyPhysiologyChemistrySkeletal muscleMatrix (biology)Extracellular matrixExtensor digitorum muscleType IV collagenGastrocnemius musclemedicine.anatomical_structureEndocrinologyBiochemistryInternal medicinemedicineCollagenasemedicine.drugActa Physiologica Scandinavica
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Poly(γ-Glutamic Acid) as an Exogenous Promoter of Chondrogenic Differentiation of Human Mesenchymal Stem/Stromal Cells

2015

Cartilage damage and/or aging effects can cause constant pain, which limits the patient's quality of life. Although different strategies have been proposed to enhance the limited regenerative capacity of cartilage tissue, the full production of native and functional cartilaginous extracellular matrix (ECM) has not yet been achieved. Poly(γ-glutamic acid) (γ-PGA), a naturally occurring polyamino acid, biodegradable into glutamate residues, has been explored for tissue regeneration. In this work, γ-PGA's ability to support the production of cartilaginous ECM by human bone marrow mesenchymal stem/stromal cells (MSCs) and nasal chondrocytes (NCs) was investigated. MSC and NC pellets were cultur…

Stromal cellBiomedical EngineeringType II collagenCell Culture TechniquesBioengineeringBiochemistryBiomaterialsExtracellular matrixTransforming Growth Factor beta1ChondrocytesNasal CartilagesmedicineHumansAggrecansAggrecanCells CulturedGlycosaminoglycansExtracellular Matrix ProteinsChemistryCartilageMesenchymal stem cellMesenchymal Stem CellsSOX9 Transcription FactorOriginal ArticlesChondrogenesisMolecular biologyCulture Mediamedicine.anatomical_structureBiochemistryPolyglutamic AcidCulture Media ConditionedCalciumCollagenStromal CellsChondrogenesisType I collagen
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Activation of complement by the alternative pathway as a factor in the pathogenesis of periodontal disease.

1976

Dental plaque and a bacterium, Actinomyces viscosus, isolated from plaque that can reproduce periodontal disease in germ-free rats, are activators of complement by the alternative pathway. It is suggested that this process is involved in the pathogenesis of chronic inflammatory periodontal disease.

T-LymphocytesGuinea PigsDental PlaqueAntigen-Antibody ComplexDental plaquePathogenesisstomatognathic systemPeriodontal diseasemedicineActinomycesAnimalsHumansActinomyces viscosusBone ResorptionPeriodontitisGlycoproteinsB-LymphocytesEnzyme Precursorsbusiness.industryMacrophagesGlobulinsGeneral MedicineComplement C3Complement System Proteinsmedicine.diseaseCathepsinsComplement (complexity)RatsEndotoxinsstomatognathic diseasesMicrobial CollagenaseImmunologyAlternative complement pathwaybusinessLancet (London, England)
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DECORIN EFFECTS ON PROTEOMIC PROFILING OF BREAST CANCER CELLS: AN UPDATED STUDY

2015

The malignant carcinomas are characterized by several capabilities acquired by the neoplastic cells, among which the ability to invade the extracellular matrix (ECM) and to establish a crosstalk with several ECM components. Under this respect, the extracellular microenvironment is an entity extraordinarily rich of information with opposite signals. Our group has long undertaken the study of the effects of ECM molecules on the behavior of cancer cells in vitro. Among the studied molecules, the decorin was found to exert a non-permissive effect on the growth and motility of the transfected tumor cells. The decorin, belongs to the family of small leucine-rich proteoglycans (SLRP) and is involv…

The malignant carcinomas are characterized by several capabilities acquired by the neoplastic cells among which the ability to invade the extracellular matrix (ECM) and to establish a crosstalk with several ECM components. Under this respect the extracellular microenvironment is an entity extraordinarily rich of information with opposite signals. Our group has long undertaken the study of the effects of ECM molecules on the behavior of cancer cells in vitro. Among the studied molecules the decorin was found to exert a non-permissive effect on the growth and motility of the transfected tumor cells. The decorin belongs to the family of small leucine-rich proteoglycans (SLRP) and is involved physiologically in the fibrillogenesis of collagen. In the last few year a new anti-oncogenic role has been proposed for decorin1. This study aimed to implement the knowledge on the effects of ectopic decorin on breast cancer cells using as a reference point the results already achieved by our research group2 on the experimental model format. By breast cancer cell line 8701-BC and its transfected clone DEC-C2. The extension of the proteomic analysis combined with the mass spectrometry allowed to triplicate the number of identified proteins in our model. Among the newly identified proteins were members of the classes of metabolic enzymes S100 family and cell motility proteins which revealed a net decrease in the decorin transfected cells. Of considerable importance is the observation that these classes of proteins are the most involved in metastatic progression. These results confirm and reinforce the anti-oncogenic role hypothesized for decorin. The work was co-funded by the Italian 5x1000 to COBS.DECORIN
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Biodegradation of differently cross-linked collagen membranes: an experimental study in the rat.

2005

Contains fulltext : 47774.pdf (Publisher’s version ) (Closed access) The aim of the present study was to compare the biodegradation of differently cross-linked collagen membranes in rats. Five commercially available and three experimental membranes (VN) were included: (1) BioGide (BG) (non-cross-linked porcine type I and III collagens), (2) BioMend (BM), (3) BioMendExtend (BME) (glutaraldehyde cross-linked bovine type I collagen), (4) Ossix (OS) (enzymatic-cross-linked bovine type I collagen), (5) TutoDent (TD) (non-cross-linked bovine type I collagen, and (6-8) VN(1-3) (chemical cross-linked porcine type I and III collagens). Specimens were randomly allocated in unconnected subcutaneous po…

Tissue engineering and reconstructive surgery [UMCN 4.3]Time FactorsSwineForeign-Body ReactionBovine Type I CollagenTissue integrationCollagen membraneMembranes ArtificialAnatomyBiodegradationRatsAndrologychemistry.chemical_compoundMembranechemistryAbsorbable ImplantsAnimalsAnimal studyCattleGlutaraldehydeCollagenOral SurgeryRats Wistar
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Cloning and expression of a type IX-like collagen in tissues of the ascidian Ciona intestinalis

2002

Collagens are highly preserved proteins in invertebrates and vertebrates. To identify the collagens in urochordates, the total RNA extracted from the pharynx of the ascidian Ciona intestinalis was hybridized with a heterologous probe specific for the echinoderm Paracentrotus lividus fibrillar type I-like larval collagen. Using this probe, two main bands (i.e. 6 and 2.8 kb mRNA) were observed on Northern blot hybridization. The cDNA library prepared from poly(A)+RNA extracted from pharyngeal tissue was screened and a cDNA that specifies a type IX-like collagen was identified. This molecule presents a conceptual open reading frame for a protein containing 734 amino acids. In particular, we sh…

Transcription GeneticAscidianMolecular Sequence DataBiophysicsIn situ hybridizationcDNA libraryBiochemistryCollagen Type IXMiceStructural BiologyComplementary DNAGeneticsAnimalsHumansCiona intestinalisTissue DistributionNorthern blotAmino Acid SequenceRNA MessengerCloning MolecularType IX-like collagenPeptide sequencePhylogenyGene LibraryMessenger RNAbiologyBase SequenceSequence Homology Amino AcidcDNA libraryRNAbiology.organism_classificationMolecular biologyCiona intestinalismRNA localizationSequence Alignment
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