966 research outputs found

    Il ruolo del FDA nella penetrazione del made in Italy sul mercato USA dei dispositivi medici e diagnostici in vitro: il percorso necessario per l'autorizzazione alla commercializzazione

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    Seminario organizzato nell'ambito della formazione del P.I.I. "Sviluppo di dispositivi medicali avanzati", finalizzato ad illustrare il percorso necessario per l'autorizzazione alla commercializzazione di dispositivi medici e diagnostici negli Stati Uniti d'America. Si è incentrato sui seguenti argomenti: il ruolo del FDA; il modello di certificazione FDA; le vie per l'ottenimento dell'approvazione; l'armonizzazione degli approcci UE-USA.2007-12-03Sardegna Ricerche, Edificio 2, Località Piscinamanna 09010 Pula (CA) - ItaliaIl ruolo della FDA nella penetrazione del made in Italy oltreocean

    Biomasse e biocombustibili: stato dell'arte

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    2007-11-09Sardegna Ricerche, Edificio 2, Località Piscinamanna 09010 Pula (CA) - ItaliaPresentazione del Progetto cluster Energia da biomasse e biocombustibili in Sardegn

    Strumentazione analitica e biomedica: la realizzazione di un prodotto sviluppato in ambito universitario. L'esperienza dell'impresa ISS

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    2007-06-22Dispositivi medicali non invasivi per la Cardiologia e la Ematologia: sviluppi e applicazion

    The MEPS server for identifying protein conformational epitopes

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    One of the most interesting problems in molecular immunology is epitope mapping, i.e. the identification of the regions of interaction between an antigen and an antibody. The solution to this problem, even if approximate, would help in designing experiments to precisely map the residues involved in the interaction and could be instrumental both in designing peptides able to mimic the interacting surface of the antigen and in understanding where immunologically important regions are located in its three-dimensional structure. From an experimental point of view, both genetically encoded and chemically synthesised peptide libraries can be used to identify sequences recognized by a given antibody. The problem then arises of which region of a folded protein the selected peptides correspond to. RESULTS: We have developed a method able to find the surface region of a protein that can be effectively mimicked by a peptide, given the structure of the protein and the maximum number of side chains deemed to be required for recognition. The method is implemented as a publicly available server. It can also find and report all peptide sequences of a specified length that can mimic the surface of a given protein and store them in a database.The immediate application of the server is the mapping of antibody epitopes, however the system is sufficiently flexible for allowing other questions to be asked, for example one can compare the peptides representing the surface of two proteins known to interact with the same macromolecule to find which is the most likely interacting region. CONCLUSION: We believe that the MEPS server, available at http://www.caspur.it/meps, will be a useful tool for immunologists and structural and computational biologists. We plan to use it ourselves to implement a database of "surface mimicking peptides" for all proteins of known structure and proteins that can be reliably modelled by comparative modelling.Pubblicat

    Il Distretto ICT in Sardegna e le attività previste sui contenuti digitali

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    2007-10-30Sardegna Ricerche, Edificio 2, Località Piscinamanna 09010 Pula (CA) - ItaliaContenuti Digitali: una vera rivoluzione

    Duplication of the dystroglycan gene in most branches of teleost fish

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    The dystroglycan (DG) complex is a major non-integrin cell adhesion system whose multiple biological roles involve, among others, skeletal muscle stability, embryonic development and synapse maturation. DG is composed of two subunits: alpha-DG, extracellular and highly glycosylated, and the transmembrane beta-DG, linking the cytoskeleton to the surrounding basement membrane in a wide variety of tissues. A single copy of the DG gene (DAG1) has been identified so far in humans and other mammals, encoding for a precursor protein which is post-translationally cleaved to liberate the two DG subunits. Similarly, D. rerio (zebrafish) seems to have a single copy of DAG1, whose removal was shown to cause a severe dystrophic phenotype in adult animals, although it is known that during evolution, due to a whole genome duplication (WGD) event, many teleost fish acquired multiple copies of several genes (paralogues). RESULTS: Data mining of pufferfish (T. nigroviridis and T. rubripes) and other teleost fish (O. latipes and G. aculeatus) available nucleotide sequences revealed the presence of two functional paralogous DG sequences. RT-PCR analysis proved that both the DG sequences are transcribed in T. nigroviridis. One of the two DG sequences harbours an additional mini-intronic sequence, 137 bp long, interrupting the uncomplicated exon-intron-exon pattern displayed by DAG1 in mammals and D. rerio. A similar scenario emerged also in D. labrax (sea bass), from whose genome we have cloned and sequenced a new DG sequence that also harbours a shorter additional intronic sequence of 116 bp. Western blot analysis confirmed the presence of DG protein products in all the species analysed including two teleost Antarctic species (T. bernacchii and C. hamatus). CONCLUSION: Our evolutionary analysis has shown that the whole-genome duplication event in the Class Actinopterygii (ray-finned fish) involved also DAG1. We unravelled new important molecular genetic details about fish orthologous DGs, which might help to increase the current knowledge on DG expression, maturation and targeting and on its physiopathological role in higher organisms.Pubblicat

    Structural analysis of a trough module structure, in operation and emergency

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    In this report a structural analysis of trough module for a Concentrated Solar Power plant is discussed and analyzed in operation and emergency conditions

    Tecnologie bioinformatiche applicate alla medicina personalizzata

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    Programma a titolarità Regione Autonoma della Sardegna RAS con soggetto attuatore Sardegna Ricerche. Imprese beneficiarie: 1. Neuroscienze Pharmaness scarl 2. Bioflag srl 3. Proteotech srl 4. Shardna spa 5. Axxam srl 6. Nurex srl 7. Parco Genos scarl 8. BCS Biotech spa 9. Casa di cura Tommasini 10. Laboratorio Informatica Applicata 11. SBC srl 12. Zetesis sncIl programma è destinato al sostegno di progetti di ricerca e sviluppo nell'ambito del progetto "Creazione di un polo di eccellenza delle tecnologie bio-informatiche applicate alla medicina personalizzata". Le tematiche prioritarie del programma sono: a) lo sviluppo di conoscenze e strumenti informatici per la gestione di database multidisciplinari distribuiti e b) lo sviluppo di modelli di analisi dell'interazione genetica-ambiente per la medicina personalizzata. Il programma mira a promuovere la collaborazione scientifica tra il mondo della ricerca e quello delle imprese, in particolare all'avvio di programmi di ricerca applicata e di sviluppo tecnologico che vedano il coinvolgimento delle imprese direttamente interessate allo sviluppo di nuovi prodotti o di nuove applicazioni tecnologiche nel campo della bioinformatica, in stretta collaborazione con i gruppi di ricerca operanti all'interno delle strutture universitarie e dei centri di ricerca pubblici.Finanziamenti::Accordo di Programma Quadro (APQ)::ICT SIAI10

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