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5 results on '"Marcon, Patrizia"'

1. Effects of Age and Heart Failure on Human Cardiac Stem Cell Function

Author

Cesselli, Daniela, Beltrami, Antonio P., D'Aurizio, Federica, Marcon, Patrizia, Bergamin, Natascha, Toffoletto, Barbara, Pandolfi, Maura, Puppato, Elisa, Marino, Laura, Signore, Sergio, Livi, Ugolino, Verardo, Roberto, Piazza, Silvano, Marchionni, Luigi, Fiorini, Claudia, Schneider, Claudio, Hosoda, Toru, Rota, Marcello, Kajstura, Jan, Anversa, Piero, Beltrami, Carlo A., and Leri, Annarosa

Published
2011
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2. Multipotent cells can be generated in vitro from several adult human organs (heart, liver, and bone marrow)

Author

Beltrami, Antonio P., Cesselli, Daniela, Bergamin, Natascha, Marcon, Patrizia, Rigo, Silvia, Puppato, Elisa, D'Aurizio, Federica, Verardo, Roberto, Piazza, Silvano, Pignatelli, Angela, Poz, Alessandra, Baccarani, Umberto, Damiani, Daniela, Fanin, Renato, Mariuzzi, Laura, Finato, Nicoletta, Masolini, Paola, Burelli, Silvia, Belluzzi, Ottorino, Schneider, Claudio, and Beltrami, Carlo A.

Published
2007
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5. The aggregation of pig articular chondrocyte and synthesis of extracellular matrix by a lactose-modified chitosan

Author

Eleonora Marsich, Amelia Gamini, G Silvestrini, Sergio Paoletti, Franco Vittur, Ivan Donati, S Stredanska, Amedeo Vetere, Pamela Mozetic, Patrizia Marcon, Donati, Ivan, Stredanska, S, Silvestrini, G, Vetere, Amedeo, Marcon, Patrizia, Marsich, Eleonora, Mozetic, Pamela, Gamini, Amelia, Paoletti, Sergio, and Vittur, Franco

Subjects
Cartilage, Articular, Materials science, Cell Survival, Swine, Cell Culture Techniques, Biophysics, Type II collagen, Biocompatible Materials, Lactose, Bioengineering, Articular cartilage, Chitosan, Chondrocytes, Glycosaminoglycans, Biomaterials, Glycosaminoglycan, Extracellular matrix, chemistry.chemical_compound, Glucosamine, Materials Testing, Animals, biomaterial, glycoconjugate, Collagen Type II, Cells, Cultured, Aggrecan, Cell Aggregation, Cell Proliferation, Extracellular Matrix Proteins, Tissue Engineering, Biomaterial, Chondrocyte, Cell aggregation, chemistry, Biochemistry, Mechanics of Materials, Ceramics and Composites, Chondrogenesis
Abstract

A reductive amination reaction (N-alkylation) obtained exploiting the aldheyde group of lactose and the amino group of the glucosamine residues of chitosan (d.a. 89%) afforded a highly soluble engineered polysaccharide (chitlac) for a potential application in the repair of the articular cartilage. Chitosan derivatives with 9% and 64% of side chain groups introduced have been prepared and characterized by means of potentiometric titration, 1H-NMR and intrinsic viscosity. Both polymers, with respect to the unmodified chitosan, induce cell aggregation when in contact with a primary culture of pig chondrocytes, leading to the formation of nodules of considerable dimensions (up to 0.5–1 mm in diameter). The nodules obtained from chondrocytes treated with chitlac with the higher degree of substitution have been studied by means of optical and electron microscopy (SEM, TEM) and the production of glycosaminoglycans (GAGs) and collagen has been measured by means of colorimetric assays. The chondro-specificity of GAG and collagen was determined by RT-PCR. The results show that the lactose-modified chitosan is non-toxic and stimulates the production of aggrecan and type II collagen.

Published
2005

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