المؤلفون: MORGIEL, J.¹, FERRARIS, M.², JANUS, A. M.¹ nmjanus@imim-pan.krakow.pl, CHIARETTA, D.², POMORSKA, M.¹

المصدر: Journal of Microscopy. Mar2010, Vol. 237 Issue 3, p333-336. 4p. 3 Diagrams, 1 Graph.

مصطلحات موضوعية: *NANOCOMPOSITE materials, *SILICON, *CRYSTALS, *TRANSMISSION electron microscopes, *MICROSTRUCTURE

مستخلص: Nano-composite layers of Au nano-crystallites embedded in amorphous silica matrix were obtained by a radio-frequency co-sputtering technique. Glass or single crystal silicon wafers were chosen as substrates. After deposition, the layers were heat treated at 900°C for 60 min. Microstructure of the layers was investigated using a TECNAI G2 FEG SuperTwin (200 kV) transmission electron microscope. Thin foils were cut using a focused ion beam Quanta 3D. The investigations confirmed that the applied process allowed obtaining nano-composite layers containing spherical Au crystallites of average size of ∼3 nm embedded in an amorphous silica matrix. Some of the nano-crystallites were twinned. The layers were heat treated in subsequent step and rise of the crystallite average size up to 5.5 nm confirming activation of diffusion processes was seen. Presence of irregularly shaped Au crystallites in the latter layers indicates incomplete sintering due to short annealing time. [ABSTRACT FROM AUTHOR]

المؤلفون: Carranza, M.^1,2 (AUTHOR), Ferraris, M. E.² (AUTHOR), Galizzi, M.^1,2 (AUTHOR)

المصدر: Journal of Oral Pathology & Medicine. Jul2005, Vol. 34 Issue 6, p374-379. 6p.

مصطلحات موضوعية: *PEOPLE with alcoholism, *AUTOPSY, *SUBMANDIBULAR gland, *SALIVARY gland diseases, *CAUSES of death, *ETIOLOGY of diseases, *DIFFERENTIAL diagnosis, *QUANTITATIVE research

مستخلص: The aim of this work was to determine morphometrical changes in lingual, labial and submaxillar salivary glands from alcoholic chronics.Five samples of each type of gland were obtained from autopsies of chronic alcoholics and equal number of samples from individuals whose death cause was accidental (controls). Serous acini in von Ebner and submaxillar glands and mucous acini in labial and Blandin–Nühn glands were analysed. In the ductal system, intra and interlobular striated ducts were studied. A digital-image analyser was used to measure different parameters in the acini and ducts.Statistical analysis revealed that lingual and submaxillar salivary glands presented a significant acinar hypertrophy and hyperplasy. These changes were not observed in labial salivary glands. All studied glands showed significant structural modifications in the striated ducts.These results indicate that the significant variations together with the histological qualitative pattern could be useful as confident indicators for the differential histopathological diagnosis with other sialosis from different aetiology.J Oral Pathol Med(2005)34: 374–9 [ABSTRACT FROM AUTHOR]

المؤلفون: Severgnini, M.¹ (AUTHOR), Ferraris, M. E.² (AUTHOR), Carranza, M.^1,2 (AUTHOR)

المصدر: Journal of Oral Pathology & Medicine. Nov2002, Vol. 31 Issue 10, p585-589. 5p. 1 Chart.

مصطلحات موضوعية: *NUCLEOLUS, *SALIVARY glands, *PHYSIOLOGICAL effects of alcohol, *SILVER staining (Microscopy)

مستخلص: Background: Chronic alcoholism has been associated with structural and physiological changes in salivary glands. Studies on a variety of pathologies have suggested that variation in number of nucleolar organizer regions (NORs) reveals conditions of cellular activity. The aim of this work was to examine, through the AgNOR technique, changes in number and size of NORs in lingual salivary glands of chronic alcoholics.Methods: Samples of mucous and serous lingual salivary glands were obtained from tongues from autopsies of individuals whose cause of death was hepatic alcoholic cirrhosis. Lingual organs from individuals whose cause of death was accidental were used as controls. Number and size of the AgNORs and nuclear area, in ductal and acinar cells, were evaluated through a digital image analyzer.Results: Statistical analysis revealed differences (P < or = 0.05) in number of AgNORs in mucous acini and ductal cells. Also, we observed changes in the area of the NORs.Conclusion: These results suggest that in alcoholics the activity of glandular cells, mainly in ductal epithelium, could be affected, modifying synthesis, transport and salivary secretions. [ABSTRACT FROM AUTHOR]

المؤلفون: PEREZ, J. D., YRANZO, G. I., FERRARIS, M. A., CLARAMUNT, R. M., LOPEZ, C., ELGUERO, J.

المصدر: ChemInform; Mar1989, Vol. 20 Issue 10, pno-no, 2p

المؤلفون: SALVO, M., LEMOINE, P., FERRARIS, M., MONTORSI, M.

المصدر: ChemInform; Apr1997, Vol. 28 Issue 18, pno-no, 1p