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457 results on '"Rosi, G."'

159. Characterisation of the TAPIRO BNCT thermal facility

Author

Rosi, G., primary, Gambarini, G., additional, Colli, V., additional, Gay, S., additional, Scolari, L., additional, Fiorani, O., additional, Perrone, A., additional, Nava, E., additional, Fasolo, F., additional, Visca, L., additional, and Zanini, A., additional

Published
2004
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168. Retinopathy and Vision Loss in Insulin-dependent Diabetes in Europe

Author

Sjølie, Anne Katrin, primary, Stephenson, Judith, additional, Aldington, Steve, additional, Kohner, Eva, additional, Janka, Hans, additional, Stevens, Lynda, additional, Fuller, John, additional, Karamanos, B., additional, Tountas, C., additional, Kofinis, A., additional, Petrou, K., additional, Katsilambros, N., additional, Cignarelli, M., additional, Giorgino, R., additional, De Geco, M.L., additional, Ramunni, I., additional, Ionescu-Tirgoviste, C., additional, Iosif, C.M., additional, Pitei, C., additional, Buligescu, S., additional, Tamas, G., additional, Kerenyi, Z., additional, Ahmed, A.M., additional, Toth, J., additional, Kempler, P., additional, Muntoni, S., additional, Songini, M., additional, Stabilini, M., additional, Fossarello, M., additional, Pintus, S., additional, Ferriss, B., additional, Cronin, C.C., additional, Toeller, M., additional, Klischan, A., additional, Forst, T., additional, Gries, F.A., additional, Rottiers, R., additional, Priem, H., additional, Ebeling, P., additional, Sinisalo, M., additional, Koivisto, V.A., additional, Idzior-Walus, B., additional, Solnica, B., additional, Szopinska-Ciba, L., additional, Solnica, K., additional, Krans, H.M.J., additional, Lemkes, H.H.P.J., additional, Jansen, J.J., additional, Nunes-Cornea, J., additional, Boavida, J., additional, Michel, G., additional, Wirion, R., additional, Boulton, A.J.M., additional, Ashe, H., additional, Fernando, D.J.S., additional, Pozza, G., additional, Slaviero, G., additional, Comi, G., additional, Fattor, B., additional, Bandello, F., additional, Mehnert, H., additional, Nuber, A., additional, Janka, H., additional, Ben Soussan, D., additional, Fallas, M.C., additional, Fallas, P., additional, Jepson, E., additional, McHardy-Young, S., additional, Fuller, J.H., additional, Betteridge, D.J., additional, Milne, M., additional, Crepaldi, G., additional, Nosadini, R., additional, Cathelineau, G., additional, Villatte Cathelineau, B., additional, Jellal, M., additional, Grodner, N., additional, Gervais Feiss, P., additional, Santeusanio, F., additional, Rosi, G., additional, Ventura, M.R.M., additional, Cagini, C., additional, Marino, C., additional, Navalesi, R., additional, Penno, G., additional, Miccoli, R., additional, Nannipieri, M., additional, Manfredi, S., additional, Ghirlanda, G., additional, Cotroneo, P., additional, Manto, A., additional, Teodonio, C., additional, Minnella, A., additional, Ward, J.D., additional, Tesfaye, S., additional, Mody, C., additional, Rudd, C., additional, Molinatti, G.M., additional, Vitelli, F., additional, Porta, M., additional, Pagano, G.F., additional, Cavallo Perin, P., additional, Estivi, P., additional, Sivieri, R., additional, Carta, Q., additional, Petraroli, G., additional, Papazoglou, N., additional, Manes, G., additional, Triantaphyllou, G., additional, Ioannides, A., additional, Muggeo, M., additional, Cacciatori, V., additional, Bellavere, F., additional, Galante, P., additional, Gemma, M.L., additional, Irsigler, K., additional, Abrahamian, H., additional, Gurdet, C., additional, Hornlein, B., additional, Willinger, C., additional, Walford, S., additional, Wardle, E.V., additional, Roglic, G., additional, Resman, Z., additional, Metelko, Z., additional, and Skrabalo, Z., additional

Published
1997
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174. A case of complete testicular feminisation and 47,XXY karyotype.

Author

Gerli, M, Migliorini, G, Bocchini, V, Venti, G, Ferrarese, R, Donti, E, and Rosi, G

Abstract

A very rare case of complete testicular feminisation with a 47,XXY sex chromosome complement is described. The X-chromatin is positive. The subject studied, who belongs to a family in which four other members have Morris's syndrome and have a 46,XY karyotype, is a perfect phenotypic female. The endocrine situation is unique and resembles, in part, that of subjects with Klinefelter's syndrome. [ABSTRACT FROM PUBLISHER]

Published
1979

175. A Comparative Study on Glyoxalase II from Vertebrata

Author

Norton Sj, Talesa, Giovanni B. Principato, Giovannini E, and Rosi G

Subjects
chemistry.chemical_classification, Molecular mass, Glyoxalase II, Isoelectric focusing, Rana esculenta, Snakes, Fractionation, Biochemistry, Chromatography, Affinity, Enzyme, Species Specificity, chemistry, Affinity chromatography, Vertebrates, Hydrolase, Animals, Isoelectric Point, Rabbits, Thiolester Hydrolases, Chickens, Salmonidae
Abstract

S-2-hydroxyacylglutathione hydrolase (glyoxalase II) from the liver of animals belonging to the various vertebrate classes (Oryctolagus cuniculus, Gallus gallus, Python molurus, Rana esculenta, Esox lucius) have been purified from 100,000 g supernatants of liver homogenates, using acetone fractionation and affinity chromatography. Subsequent comparative studies were concerned with some molecular and kinetic properties. Isoelectric focusing gave evidence for a single form of liver glyoxalase II in O. cuniculus, P. molurus and E. lucius, while the enzyme from G. gallus and R. esculenta showed respectively two and three forms with different pI values. All studied enzymes are basic proteins. The relative molecular mass values range from 18,000 to 23,000. The various glyoxalases II do not display markedly different Kn or Ki values. Their stability behavior at different temperatures is also quite similar.

Published
1987

178. Expression of a single dimeric membrane-bound acetylcholinesterase in <e1>Parascaris equorum</e1> (Acetylcholinesterase in <e1>Parascaris equorum</e1>)

Author

*, V. TALESA, †, ROMANI, R., *, M. GRAUSO, ‡, ROSI, G., and GIOVANNINI, E.

Abstract

A single form of cholinesterase was detected in the parasitic nematode Parascaris equorum and purified from a low-salt Triton X-100 extract of whole animals by affinity chromatography on an edrophonium–Sepharose matrix. Based on gel-filtration chromatography, sedimentation analysis and SDS–PAGE, such a cholinesterase is an amphiphilic globular (G2) dimer (125–129 kDa, 6·1 S). It includes some hydrophobic domain other than phosphatidylinositol, which gives auto-aggregation, detergent interaction and also anchors the molecule to the cell membrane. The enzyme, probably functional in cholinergic neurotransmission, is an acetylcholinesterase showing a fairly low substrate specificity with thiocholine esters. Electrostatic interactions seem to play a major role in the catalytic activity. Studies with inhibitors gave complete inhibition with 1 mM eserine, low sensitivity for procainamide and for tetra(monoisopropyl)pyrophosphortetramide as well as higher inhibition with edrophonium chloride and 1,5-bis(4allyldimethylammoniumphenyl)-pentan-3-one dibromide. The enzyme also showed excess-substrate inhibition with acetylthiocholine. No cross-hybridization occurred between the gene(s) encoding acetylcholinesterase in P. equorum and ace-1 from the free-living nematode Caenorhabditis elegans. The expression of a single cholinesterase form in P. equorum, unusual in free-living nematodes, could be due to parasitic life adaptation with resulting reduction of locomotor activity.

Published
1997

179. Synthesis and Study of Thiocarbonate Derivatives of Choline as Potential Inhibitors of Acetylcholinesterase

Author

Boyle, N. A. J., Talesa, V., Giovannini, E., Rosi, G., and Norton, S. J.

Abstract

Fourteen alkyl and aryl thiocarbonate derivatives of choline were synthesized and studied as potential inhibitors of acetylcholinesterase (AChE). Twelve of the compounds inhibited AChEs derived from calf forebrain, human red blood cells, and octopus brain ranging from low to moderately high inhibition potency. The concentration of each inhibitory compound giving 50% inhibition of enzyme activity (IC50 values, which ranged from 1 × 10-2 to 8 × 10-7 M) was determined and is reported; inhibitor constants (Ki values) for the most inhibitory compounds, (1-pentylthiocarbonyl)choline chloride and (1-heptylthiocarbonyl)choline chloride, were calculated from kinetic data and are also reported. The inhibitors are competitive with substrate, and they are not hydrolyzed by the AChE activities. Certain of these new compounds may provide direction for the development of new drugs that have anticholinesterase activity and may be used for the treatment of Alzheimer's disease.

Published
1997

190. Characterization of the mechanical properties of enthesis-mimicking samples using elastic waves

Author

Aghaei, A., Nicolas Bochud, Rosi, G., Naili, S., Grossman, Q., Ruffoni, D., Laboratoire Modélisation et Simulation Multi-Echelle (MSME), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel, Université de Liège, Department of Aerospace and Mechanical Engineering, University of Liège, and Bochud, Nicolas

Subjects
[SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

192. Precocious puberty and neurofibromatosis of von Recklinghausen. A clinical report

Author

Angeletti, G., Crispino, G., Bracaccia, M., Rosi, G., Caputo, N., Giulio Lupidi, and Sbordone, G. B.

Subjects
Male, Neurofibromatosis 1, Skin Neoplasms, Optic Chiasm, Optic Nerve Diseases, Brain, Humans, Puberty, Precocious, Cranial Nerve Neoplasms, Child, Tomography, X-Ray Computed, Magnetic Resonance Imaging
Abstract

A case of a 9-year-old boy with neurofibromatosis of von Recklinghausen and precocious puberty is reported. The patient was referred to us because of an unexplained onset of precocious puberty. Clinical manifestations of neurofibromatosis included multiple café-au-lait spots, skeletal anomalies, progressive impairment of vision and precocious sexual development. CT scan and NMR demonstrated the presence of optic gliomas. The correlation between the lesions of retino-hypothalamic projection and production of the neuroendocrinology mechanism of sexual changes is discussed.

193. Gadolinium in human glioblastoma cells for gadolinium neutron capture therapy

Author

De Stasio G, Casalbore P, Pallini R, Gilbert B, Sanità F, Mt, Ciotti, Rosi G, Festinesi A, Lm, Larocca, Rinelli A, Perret D, Dw, Mogk, Perfetti P, minesh mehta, and Mercanti D

Subjects
Cell Nucleus, Gadolinium DTPA, Cytoplasm, Cell Death, Cell Culture, Cell Membrane, Spectrometry, X-Ray Emission, Neutron Capture, Gadolinium, Neutron Capture Therapy, Mass Spectrometry, Isotopes, Tumor Cells, Cultured, Tumor Biology, Humans, Glioblastoma
Abstract

157Gd is a potential agent for neutron capture cancer therapy (GdNCT). We directly observed the microdistribution of Gd in cultured human glioblastoma cells exposed to Gd-diethylenetriaminepentaacetic acid (Gd-DTPA). We demonstrated, with three independent techniques, that Gd-DTPA penetrates the plasma membrane, and we observed no deleterious effect on cell survival. A systematic microchemical analysis revealed a higher Gd accumulation in cell nuclei compared with cytoplasm. This is significant for prospective GdNCT because the proximity of Gd to DNA increases the cell-killing potential of the short-range, high-energy electrons emitted during the neutron capture reaction. We also exposed Gd-containing cells to thermal neutrons and demonstrated the GdNC reaction effectiveness in inducing cell death. These results in vitro stimulated in vivo Gd-DTPA uptake studies, currently underway, in human glioblastoma patients.

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