46 results on '"Padoan, M"'
Search Results
2. EP08.02-30 Durvalumab as Maintenance in Patients who Received Chemoradiotherapy for Unresectable Stage III NSCLC: RWD from an EAP in Brazil (LACOG 0120)
- Author
-
Zukin, M., Gelatti, A.C.Z., Gondim, V., Shimada, A.K., Magalhães, E., Mathias, C., Barra, W.F., William Junior, W.N., Padoan, M., Bittencourt, Y., Yamamura, R., Gossling, G., Rebelatto, T.F., de Jesus, R.G., and Silva, C.E.B. more...
- Published
- 2023
- Full Text
- View/download PDF
Catalog
3. Genetically Determined Height and Risk of Non-hodgkin Lymphoma
- Author
-
Moore, A., Kane, E., Panagiotou, O.A., Teras, L.R., Monnereau, A., Wong Doo, N., Machiela, M.J., Skibola, C.F., Slager, S.L., Salles, G., Camp, N.J., Bracci, P.M., Nieters, A., Vermeulen, R.C.H., Vijai, J., Smedby, K.E., Vajdic, C.M., Cozen, W., Spinelli, J.J., Hjalgrim, H., Giles, G.G., Link, B.K., Clavel, J., Arslan, A.A., Purdue, M.P., Tinker, L.F., Albanes, D., Ferri, G.M., Habermann, T.M., Adami, H.-O., Becker, N., Benavente, Y., Bisanzi, S., Boffetta, P., Brennan, P., Brooks-Wilson, A.R., Canzian, F., Conde, L., Cox, D.G., Curtin, K., Foretova, L., Gapstur, S.M., Ghesquières, H., Glenn, M., Glimelius, B., Jackson, R.D., Lan, Q., Liebow, M., Maynadie, M., McKay, J., Melbye, M., Miligi, L., Milne, R.L., Molina, T.J., Morton, L.M., North, K.E., Offit, K., Padoan, M., Piro, S., Ravichandran, V., Riboli, E., de Sanjose, S., Severson, R.K., Southey, M.C., Staines, A., Stewart, C., Travis, R.C., Weiderpass, E., Weinstein, S., Zheng, T., Chanock, S.J., Chatterjee, N., Rothman, N., Birmann, B.M., Cerhan, J.R., Berndt, S.I., IRAS OH Epidemiology Chemical Agents, and dIRAS RA-2 more...
- Subjects
follicular lymphoma ,non-Hodgkin lymphoma ,polygenic risk score ,diffuse large B-celllymphoma ,chronic lymphocytic leukemia ,genetics ,marginal zone lymphoma ,height - Abstract
Although the evidence is not consistent, epidemiologic studies have suggested that taller adult height may be associated with an increased risk of some non-Hodgkin lymphoma (NHL) subtypes. Height is largely determined by genetic factors, but how these genetic factors may contribute to NHL risk is unknown. We investigated the relationship between genetic determinants of height and NHL risk using data from eight genome-wide association studies (GWAS) comprising 10,629 NHL cases, including 3,857 diffuse large B-cell lymphoma (DLBCL), 2,847 follicular lymphoma (FL), 3,100 chronic lymphocytic leukemia (CLL), and 825 marginal zone lymphoma (MZL) cases, and 9,505 controls of European ancestry. We evaluated genetically predicted height by constructing polygenic risk scores using 833 height-associated SNPs. We used logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI) for association between genetically determined height and the risk of four NHL subtypes in each GWAS and then used fixed-effect meta-analysis to combine subtype results across studies. We found suggestive evidence between taller genetically determined height and increased CLL risk (OR = 1.08, 95% CI = 1.00–1.17, p = 0.049), which was slightly stronger among women (OR = 1.15, 95% CI: 1.01–1.31, p = 0.036). No significant associations were observed with DLBCL, FL, or MZL. Our findings suggest that there may be some shared genetic factors between CLL and height, but other endogenous or environmental factors may underlie reported epidemiologic height associations with other subtypes. more...
- Published
- 2020
4. Lack of association of HLA class I genes and TNF α-308 polymorphism in toluene diisocyanate-induced asthma
- Author
-
Beghé, B., Padoan, M., Moss, C. T., Barton, S. J., Holloway, J. W., Holgate, S. T., Howell, W. M., and Mapp, C. E.
- Published
- 2004
5. Association between HLA genes and susceptibility to toluene diisocyanate-induced asthma
- Author
-
MAPP, C. E., BEGHÈ, B., BALBONI, A., ZAMORANI, G., PADOAN, M., JOVINE, L., BARICORDI, O. R., and FABBRI, L. M.
- Published
- 2000
6. The Oligocene Biella pluton (western Alps, Italy): new insights on the magmatic vs. hydrothermal activity in the Valsessera roof zone
- Author
-
Rossetti, Piergiorgio, Agangi, A, Castelli, Daniele Carlo Cesare, Padoan, M, Ruffini, R., Rossetti, P, Agangi, A, Castelli, D, Padoan, M, and Ruffini, R
- Subjects
Calc-alkaline vs. shoshonite magmatism ,western Alps ,GEO/07 - PETROLOGIA E PETROGRAFIA ,hydrothermal activity ,Calc-alkaline vs. shoshonite magmatism, hydrothermal activity, Sesia-Lanzo Zone, Periadriatic Igneous Province, western Alps ,Sesia-Lanzo Zone ,Periadriatic Igneous Province - Abstract
The composite Biella pluton is part of an Oligocene volcano-plutonic complex whose origin is connected to the Alpine subduction-collision processes and that emplaced at shallow crustal levels within the eclogite-facies rocks of the Austroalpine Sesia-Lanzo Zone. In the roof zone of the pluton, small satellite igneous bodies are set within the Sesia-Lanzo country rocks, close to the main Biella pluton, and range in composition from quartz alkali feldspar syenite, quartz monzodiorite and monzogabbro, to quartz diorite and gabbronorite. Their geochemical features, including the REE patterns, are coherent with the calc-alkaline to shoshonitic affinity recognized in the whole volcano-plutonic complex. Field and petrographic data suggest that these bodies represent earlier crystallization/differentiation products of the Biella primary magma(s), which underwent contact metamorphic recrystallization during the multistage emplacement of the main pluton. Tourmaline-bearing hydrothermal breccias and different types of hydrothermal veins (including quartz-plagioclase-, quartz-tourmaline- and ankerite-quartz-sulphides-bearing veins) occur within both the intrusive rocks (satellite bodies + the main pluton) and their Sesia-Lanzo Zone country rocks. Both field relationships and vein assemblages suggest a close connection between the late-magmatic evolution of the Biella pluton and the multistage, boron-rich hydrothermal activity. more...
- Published
- 2007
7. Petrographic data and fluid inclusions analyses of the hydrothermal veins in the El Callao Gold Mining District (Venezuela)
- Author
-
Padoan, M, Rossetti, Piergiorgio, Padoan, M, and Rossetti, P
- Subjects
Fluid inclusions, petrography, hydrothermal veins - Published
- 2005
8. EPIGENETIC PROFILES IN RELATION TO ASBESTOS EXPOSURE IN MALIGNANT PLEURAL MESOTHELIOMA
- Author
-
Casalone, Elisabetta, Guarrera, Simonetta, Fiorito, Giovanni, Betti, M., Ferrante, D., Voglino, F., DI GAETANO, Cornelia, Rosa, Fabio, Russo, Alessia, Tunesi, S., Padoan, M., Aspesi, A., Casadio, C., Ardissone, Francesco, Ruffini, E., Betta, P. G., Libener, R., Guaschino, R., Piccolini, E., Mirabelli, D., Magnani, C., Dianzani, Irma, and Matullo, Giuseppe more...
- Published
- 2013
9. P1.06-024 Outcome of Non-Small Cell Lung Cancer Patients Treated in the Private Health Care in Brazil
- Author
-
Baldotto, C., Batista, M., Lemos, F., Padoan, M., Carvalho, N., Andrade, P., Zukin, M., Teich, N., and Araujo, L.H.
- Published
- 2017
- Full Text
- View/download PDF
10. Long - term follow up of toluene diisocyanate-induced asthma
- Author
-
Padoan, M, Pozzato, V, Simoni, M, Zedda, L, Milan, G, Bononi, Ilaria, Piola, C, Maestrelli, P, Boschetto, Piera, and Mapp, Cristina
- Published
- 2003
11. Original article Lack of association of HLA class I genes and TNF α-308 polymorphism in toluene diisocyanate-induced asthma.
- Author
-
Beghé, B., Padoan, M., Moss, C.T., Barton, S.J., Holloway, J.W., Holgate, S.T., Howell, W.M., and Mapp, C.E.
- Subjects
- *
TOLUENE diisocyanate , *ASTHMA , *HLA histocompatibility antigens , *TUMOR necrosis factors - Abstract
Toluene diisocyanate (TDI)-induced asthma is a common cause of occupational asthma and it affects 5–15% of the exposed population suggesting an underlying genetic susceptibility. To investigate the role of genetic factors in the development of TDI-induced asthma, we analyzed the distribution of human leukocyte antigen (HLA) class I genes and of tumor necrosis factor (TNF)- α A-308G polymorphism in 142 patients with TDI-induced asthma and in 50 asymptomatic exposed subjects. Neither the distribution of HLA class I antigens nor the distribution of TNF- α A-308G polymorphism was different between patients with TDI-induced asthma and asymptomatic exposed subjects. These results suggest that HLA class I antigens and TNF- α A-308G are not associated with susceptibility or resistance to the development of TDI-induced asthma. [ABSTRACT FROM AUTHOR] more...
- Published
- 2004
- Full Text
- View/download PDF
12. Vjera Katalinić: glazbeni izvori i jedinstvo europske kulture / Vjera Katalinić: Musical Sources and the Unity of European Culture
- Author
-
IVANO CAVALLINI, Cavallini, I, Guzi-Pasjak, J, White, H, Gancarczyk, P, Rados-Perkovic, K, Tomic Feric, I, Majer-Bobetko, S, Bezic, N, Palic-Jelavic, R, Harrandt, A, Konfic, L, Pintar, M, Kos, K, Padoan, M, Juric-Janjik, M, Di Pasquale, M, Chirulli, M, Curkovic, I, Everett, W, Bozo, P, Davidovic, D, Prassl, F K, Muller, S O, McMahon, S, Przybyszewska-Jarminska, B, zur Nieden, G, Breko Kustura, H, Zorawska-Witkowska, A, Payne, L, Kokole, M, Georgieva, S, Tuksar, S, and IVANO CAVALLINI more...
- Subjects
Settore L-ART/07 - Musicologia E Storia Della Musica ,Vjera Katalinic, Life and Work, Musicology, Methods, Croatia and the European Culture - Abstract
The generation to which Vjera Katalinic belongs is that of those born about ten years after the end of the Second World War. It is the generation of young people who grew up in Zagreb, who through no fault of their own were obliged to pay for the faults of the fascist Ante Pavelić. Up until 1990, one must remember, Croatia was under ‘special surveillance’. Any proposal for change coming from this republic kindled the fear of a nationalist reflux, the worst syndrome for the Federation of Yugoslavia. The article analyses the career of Katalinic from the 1980s to her jubilee in 2020, and emphasises the outcomes from the time of her charge as director of the Institute of Musicological Research at the Academy of Sciences and Arts in 1991. She gave a new impulse to musicology within the frame of Central and Mediterranean Europe, engaging young scholars with the aim to collect a big amount of materials and scores useful in establishing the role of music in Croatia - not only of Croatian music. The main topics of her activity - experienced through symposia, grants, researches promoted by EU and German Foundations - are the role of “Kleinmeister” in the age of Classicism, the path of dissemination of classical style in Central Europe, the origins of modern musical market at the end of the eighteenth century onwards, the styles of national opera in Croatia and abroad. To these subjects she added other areas of studies: music migrations from West to East and South Europe, and the opera as a means of self-representation during the nineteenth century. more...
- Published
- 2020
13. Genetically Determined Height and Risk of Non-hodgkin Lymphoma
- Author
-
Amy Moore, Eleanor Kane, Zhaoming Wang, Orestis A. Panagiotou, Lauren R. Teras, Alain Monnereau, Nicole Wong Doo, Mitchell J. Machiela, Christine F. Skibola, Susan L. Slager, Gilles Salles, Nicola J. Camp, Paige M. Bracci, Alexandra Nieters, Roel C. H. Vermeulen, Joseph Vijai, Karin E. Smedby, Yawei Zhang, Claire M. Vajdic, Wendy Cozen, John J. Spinelli, Henrik Hjalgrim, Graham G. Giles, Brian K. Link, Jacqueline Clavel, Alan A. Arslan, Mark P. Purdue, Lesley F. Tinker, Demetrius Albanes, Giovanni M. Ferri, Thomas M. Habermann, Hans-Olov Adami, Nikolaus Becker, Yolanda Benavente, Simonetta Bisanzi, Paolo Boffetta, Paul Brennan, Angela R. Brooks-Wilson, Federico Canzian, Lucia Conde, David G. Cox, Karen Curtin, Lenka Foretova, Susan M. Gapstur, Hervé Ghesquières, Martha Glenn, Bengt Glimelius, Rebecca D. Jackson, Qing Lan, Mark Liebow, Marc Maynadie, James McKay, Mads Melbye, Lucia Miligi, Roger L. Milne, Thierry J. Molina, Lindsay M. Morton, Kari E. North, Kenneth Offit, Marina Padoan, Alpa V. Patel, Sara Piro, Vignesh Ravichandran, Elio Riboli, Silvia de Sanjose, Richard K. Severson, Melissa C. Southey, Anthony Staines, Carolyn Stewart, Ruth C. Travis, Elisabete Weiderpass, Stephanie Weinstein, Tongzhang Zheng, Stephen J. Chanock, Nilanjan Chatterjee, Nathaniel Rothman, Brenda M. Birmann, James R. Cerhan, Sonja I. Berndt, Moore A., Kane E., Wang Z., Panagiotou O.A., Teras L.R., Monnereau A., Wong Doo N., Machiela M.J., Skibola C.F., Slager S.L., Salles G., Camp N.J., Bracci P.M., Nieters A., Vermeulen R.C.H., Vijai J., Smedby K.E., Zhang Y., Vajdic C.M., Cozen W., Spinelli J.J., Hjalgrim H., Giles G.G., Link B.K., Clavel J., Arslan A.A., Purdue M.P., Tinker L.F., Albanes D., Ferri G.M., Habermann T.M., Adami H.-O., Becker N., Benavente Y., Bisanzi S., Boffetta P., Brennan P., Brooks-Wilson A.R., Canzian F., Conde L., Cox D.G., Curtin K., Foretova L., Gapstur S.M., Ghesquieres H., Glenn M., Glimelius B., Jackson R.D., Lan Q., Liebow M., Maynadie M., McKay J., Melbye M., Miligi L., Milne R.L., Molina T.J., Morton L.M., North K.E., Offit K., Padoan M., Patel A.V., Piro S., Ravichandran V., Riboli E., de Sanjose S., Severson R.K., Southey M.C., Staines A., Stewart C., Travis R.C., Weiderpass E., Weinstein S., Zheng T., Chanock S.J., Chatterjee N., Rothman N., Birmann B.M., Cerhan J.R., and Berndt S.I. more...
- Subjects
0301 basic medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,Chronic lymphocytic leukemia ,Follicular lymphoma ,diffuse large B-cell lymphoma ,Single-nucleotide polymorphism ,Genome-wide association study ,lcsh:RC254-282 ,03 medical and health sciences ,0302 clinical medicine ,follicular lymphoma ,immune system diseases ,Internal medicine ,hemic and lymphatic diseases ,Genetics ,Medicine ,Leucèmia limfocítica crònica ,genetics ,Original Research ,Genetic association ,Cancer och onkologi ,business.industry ,non-Hodgkin lymphoma ,Odds ratio ,medicine.disease ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,marginal zone lymphoma ,Lymphoma ,Malaltia de Hodgkin ,030104 developmental biology ,Cancer and Oncology ,030220 oncology & carcinogenesis ,polygenic risk score ,diffuse large B-celllymphoma ,chronic lymphocytic leukemia ,Hodgkin's disease ,genetic ,business ,Diffuse large B-cell lymphoma ,Genètica ,height - Abstract
Although the evidence is not consistent, epidemiologic studies have suggested that taller adult height may be associated with an increased risk of some non-Hodgkin lymphoma (NHL) subtypes. Height is largely determined by genetic factors, but how these genetic factors may contribute to NHL risk is unknown. We investigated the relationship between genetic determinants of height and NHL risk using data from eight genome-wide association studies (GWAS) comprising 10,629 NHL cases, including 3,857 diffuse large B-cell lymphoma (DLBCL), 2,847 follicular lymphoma (FL), 3,100 chronic lymphocytic leukemia (CLL), and 825 marginal zone lymphoma (MZL) cases, and 9,505 controls of European ancestry. We evaluated genetically predicted height by constructing polygenic risk scores using 833 height-associated SNPs. We used logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI) for association between genetically determined height and the risk of four NHL subtypes in each GWAS and then used fixed-effect meta-analysis to combine subtype results across studies. We found suggestive evidence between taller genetically determined height and increased CLL risk (OR = 1.08, 95% CI = 1.00–1.17, p = 0.049), which was slightly stronger among women (OR = 1.15, 95% CI: 1.01–1.31, p = 0.036). No significant associations were observed with DLBCL, FL, or MZL. Our findings suggest that there may be some shared genetic factors between CLL and height, but other endogenous or environmental factors may underlie reported epidemiologic height associations with other subtypes. more...
- Published
- 2020
- Full Text
- View/download PDF
14. Sedimentary processes controlling ultralong cells of littoral transport: Placer formation and termination of the Orange sand highway in southern Angola
- Author
-
João Huvi, Pieter Vermeesch, Mara Limonta, Sergio Andò, Marta Padoan, Eduardo Garzanti, Annette Hahn, Pedro Dinis, Giovanni Vezzoli, Alberto Resentini, Martin Rittner, Garzanti, E, Dinis, P, Vermeesch, P, Andò, S, Hahn, A, Huvi, J, Limonta, M, Padoan, M, Resentini, A, Rittner, M, and Vezzoli, G more...
- Subjects
Moçamedes Desert and Cunene River sand ,Provenance ,Placer mining ,010504 meteorology & atmospheric sciences ,Stratigraphy ,Raman counting of deep-sea silt ,010502 geochemistry & geophysics ,01 natural sciences ,Detrital-zircon geochronology ,Paleontology ,Continental margin ,Littoral zone ,0105 earth and related environmental sciences ,garnet and pyroxene chemistry ,Canyon ,geography ,sedimentary petrology ,geography.geographical_feature_category ,heavy mineral ,Geology ,longshore sediment transport ,grain density and geochemistry of placer deposit ,Black sand ,Sedimentary rock ,Sediment transport - Abstract
This study focuses on the causes, modalities and obstacles of sediment transfer in the longest cell of littoral sand drift documented on Earth so far. Sand derived from the Orange River is dragged by swell waves and persistent southerly winds to accumulate in four successive dunefields in coastal Namibia to Angola. All four dunefields are terminated by river valleys, where aeolian sand is flushed back to the ocean; and yet sediment transport continues at sea, tracing an 1800Âkm long submarine sand highway. Sand drift would extend northward to beyond the Congo if the shelf did not become progressively narrower in southern Angola, where drifting sand is funnelled towards oceanic depths via canyon heads connected to river mouths. Garnetâmagnetite placers are widespread along this coastal stretch, indicating systematic loss of the low-density feldspatho-quartzose fraction to the deep ocean. More than half of Moçamedes Desert sand is derived from the Orange River, and the rest in similar proportions from the Cunene River and from the Swakop and other rivers draining the Damara Orogen in Namibia. The Orange fingerprint, characterized by basaltic rock fragments, clinopyroxene grains and bimodal zircon-age spectra with peaks at ca 0·5ÂGa and ca 1·0ÂGa, is lost abruptly at Namibe, and beach sands further north have abundant feldspar, amphibole-epidote suites and unimodal zircon-age spectra with a peak at ca 2·0ÂGa, documenting local provenance from Palaeoproterozoic basement. Along with this oblique-rifted continental margin, beach placers are dominated by FeâTiâCr oxides with more monazite than garnet and thus have a geochemical signature sharply different from beach placers found all the way along the Orange littoral cell. High-resolution mineralogical studies allow us to trace sediment dispersal over distances of thousands of kilometres, providing essential information for the correct reconstruction of âsource to sinkâ relationships in hydrocarbon exploration and to predict the long-term impact of man-made infrastructures on coastal sediment budgets. more...
- Published
- 2018
15. Dynamic uplift, recycling, and climate control on the petrology of passive-margin sand (Angola)
- Author
-
Eduardo Garzanti, João Huvi, Sergio Andò, Marta Padoan, Alberto Resentini, Annette Hahn, Martin Rittner, Mara Limonta, Giovanni Vezzoli, Pieter Vermeesch, Pedro Dinis, Garzanti, E, Dinis, P, Vermeesch, P, Andò, S, Hahn, A, Huvi, J, Limonta, M, Padoan, M, Resentini, A, Rittner, M, and Vezzoli, G more...
- Subjects
Provenance ,010504 meteorology & atmospheric sciences ,Quartzarenite problem ,Stratigraphy ,Weathering ,engineering.material ,010502 geochemistry & geophysics ,Feldspar ,01 natural sciences ,Continental margin ,Passive margin ,Plagioclase ,GEO/02 - GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA ,Petrology ,0105 earth and related environmental sciences ,Provenance analysi ,U-Pb zircon geochronology ,Raman-counting of deep-water silt ,Terrigenous sediment ,Geology ,visual_art ,Weathering of detrital mineral ,engineering ,visual_art.visual_art_medium ,Classification of feldspatho-quartzose sand ,Siliciclastic - Abstract
The subequatorial Angolan continental margin offers excellent conditions to test textbook theories on the composition of passive-margin sediments generated in different climatic and tectonic regimes. We use here comprehensive petrographic, heavy-mineral, geochemical and zircon-geochronology datasets on modern fluvial, beach, shelfal, and deep-marine sands and muds collected from hyperarid northern Namibia to hyperhumid Congo to investigate and assess: a) how faithfully sand mineralogy reflects the lithological and time structures of source rocks in a tectonically active rifted margin; b) in what climatic and geomorphological conditions the mark of chemical weathering becomes strong and next overwhelming; and, c) to what extent the effect of weathering can be isolated from quartz dilution by recycling of older siliciclastic strata and other physical controls including hydraulic sorting and mechanical wear. A new refined classification of feldspatho-quartzose and quartzose sands and sandstones is proposed. First-cycle quartzo-feldspathic to feldspar-rich feldspatho-quartzose sand eroded from mid-crustal granitoid gneisses of the Angola Block exposed in the dynamically uplifted Bie-Huila dome is deposited in arid southern Angola, whereas quartz-rich feldspatho-quartzose to quartzose sand characterizes the lower-relief, less deeply dissected, and more intensely weathered rifted margin of humid northern Angola. Pure quartzose, largely recycled sand is generated in the vast, low-lying hyperhumid continental interiors drained by the Congo River. The progressive relative increase of durable minerals toward the Equator results from three distinct processes acting in accord: active tectonic uplift in the arid south, and progressively stronger weathering coupled with more extensive recycling in the humid north. The quartz/feldspar ratio increases and the plagioclase/feldspar ratio decreases rapidly in first-cycle sand generated farther inland in the Catumbela catchment, reflecting stronger weathering in wet interior highlands. Discriminating weathering from recycling control is difficult in northern Angola. Although textural features including deep etch pits even on relatively resistant minerals such as quartz and microcline or rounded outline and abraded overgrowths provide valuable independent information, recycling remains as a most elusive problem in provenance analysis of terrigenous sediments. more...
- Published
- 2018
16. Controls on sand ramp formation in southern Namibia
- Author
-
Rowell, Alex, Thomas, David, Bailey, Richard, Stone, Abi, Garzanti, Eduardo, Padoan, Marta, Rowell, A, Thomas, D, Bailey, R, Stone, A, Garzanti, E, and Padoan, M
- Subjects
Provenance ,010504 meteorology & atmospheric sciences ,Thermoluminescence dating ,Heavy mineral ,Geography, Planning and Development ,Geochemistry ,Fluvial ,Sediment ,010502 geochemistry & geophysics ,01 natural sciences ,Earth-Surface Processe ,Earth and Planetary Sciences (miscellaneous) ,Aeolian processes ,Sedimentology ,Geomorphology ,Geology ,0105 earth and related environmental sciences ,Earth-Surface Processes ,Colluvium - Abstract
Sand ramps have the potential to provide rich palaeoenvironmental information in dryland regions where proxy records are typically scarce. However, current knowledge of the geomorphic controls and processes of sand ramp formation is limited. This study provides a data-rich examination of the key factors controlling sand ramp formation. The location and morphology of 75 sand ramps in southern Namibia are examined. The sediments and chronologies of 10 sand ramps are studied in detail using 51 OSL dates and 83 grain-size and LOI samples. Heavy mineral assemblages are used to determine the provenance of 10 samples and OSL sensitivity is used to explore geomorphic processes of eight samples. Sand ramp morphology can be grouped into one of four classes of increasing size and complexity and is closely linked to the available accommodation space. Heavy mineral assemblages indicate local sediment sources and all 75 studied sand ramps are within 4 km of a large ephemeral river channel or within 5.5 km of a dune field. Therefore, accommodation space and sediment supply are identified as the primary controls of sand ramp formation. Sedimentology and OSL sensitivity suggest a complex interplay of aeolian, fluvial and colluvial processes contribute to sand ramp formation with large variability observed between ramps. Three of the ten dated sand ramps have been present in the Namibian landscape for >100 ka. Eight sand ramps show episodic deposition between >75–12 ka and five show evidence of surface reworking over the past 2 ka. Environmental sensitivity is probably linked to the size and availability of the accommodation space. Therefore, individual sand ramps are expected to reflect local environmental conditions, recording when an abundant sediment supply coincided with available accommodation space, while a regional analysis of multiple sand ramps with chronometric data offers the potential to identify larger scale palaeoenvironmental controls of sediment supply. © 2017 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd. more...
- Published
- 2018
- Full Text
- View/download PDF
17. The Euphrates-Tigris-Karun river system: Provenance, recycling and dispersal of quartz-poor foreland-basin sediments in arid climate
- Author
-
Marta Padoan, Yousef Zoleikhaei, Martin Rittner, Jaafar Jotheri, Pieter Vermeesch, Dicle Bal Akkoca, Alberto Resentini, Ahmed K. Obaid, Mara Limonta, Ali I. Al-Juboury, Giovanni Vezzoli, Sergio Andò, Mark B. Allen, Eduardo Garzanti, Garzanti, E, Al Juboury, A, Zoleikhaei, Y, Vermeesch, P, Jotheri, J, Akkoca, D, Obaid, A, Allen, M, Ando', S, Limonta, M, Padoan, M, Resentini, A, Rittner, M, and Vezzoli, G more...
- Subjects
Provenance ,010504 meteorology & atmospheric sciences ,Long-distance sediment transport ,U–Pb zircon geochronology ,U–Pb zircon geochronology Anatolia-Zagros orogen ,010502 geochemistry & geophysics ,Ophiolite ,01 natural sciences ,Petrography ,Paleontology ,chemistry.chemical_compound ,Undissected collision orogen provenance ,Foreland basin ,0105 earth and related environmental sciences ,Anatolia-Zagros orogen ,Sedimentary petrology ,geography ,geography.geographical_feature_category ,Plateau ,Heavy mineral ,Volcanic rock ,chemistry ,General Earth and Planetary Sciences ,Carbonate rock ,Carbonate ,Geology - Abstract
We present a detailed sediment-provenance study on the modern Euphrates-Tigris-Karun fluvial system and Mesopotamian foreland basin, one of the cradles of humanity. Our rich petrographic and heavy-mineral dataset, integrated by sand geochemistry and U–Pb age spectra of detrital zircons, highlights the several peculiarities of this large source-to-sink sediment-routing system and widens the spectrum of compositions generally assumed as paradigmatic for orogenic settings. Comparison of classical static versus upgraded dynamic petrologic models enhances the power of provenance analysis, and allows us to derive a more refined conceptual model of reference and to verify the limitations of the approach. Sand derived from the Anatolia-Zagros orogen contains abundant lithic grains eroded from carbonates, cherts, mudrocks, arc volcanics, obducted ophiolites and ophiolitic melanges representing the exposed shallow structural level of the orogen, with relative scarcity of quartz, K-feldspar and mica. This quartz-poor petrographic signature, characterizing the undissected composite tectonic domain of the entire Anatolia-Iranian plateau, is markedly distinct from that of sand shed by more elevated and faster-eroding collision orogens such as the Himalaya. Arid climate in the region allows preservation of chemically unstable grains including carbonate rock fragments and locally even gypsum, and reduces transport capacity of fluvial systems, which dump most of their load in Mesopotamian marshlands upstream of the Arabian/Persian Gulf allochemical carbonate factory. Quartz-poor sediment from the Anatolia-Zagros orogen mixes with quartz-rich recycled sands from Arabia along the western side of the foreland basin, and is traced all along the Gulf shores as far as the Rub' al-Khali sand sea up to 4000 km from Euphrates headwaters. more...
- Published
- 2016
18. The modern Nile sediment system: Processes and products
- Author
-
Sergio Andò, Giovanni Vezzoli, Eduardo Garzanti, Marta Padoan, Ahmed El Kammar, Garzanti, E, Andò, S, Padoan, M, Vezzoli, G, and El Kammar, A
- Subjects
Archeology ,Global and Planetary Change ,Provenance ,Rift ,Geochemistry and chemical weathering ,Geochemistry ,Long-distance littoral transport ,Fluvial ,Detritus (geology) ,Sediment ,Geology ,Weathering ,Anorogenic Volcanic provenance ,Sediment mixing and recycling ,Erosion rates and sediment budget ,Paleontology ,Continental block provenance ,Aeolian processes ,Sedimentary rock ,Heavy minerals and hydraulic sorting ,Sedimentary petrology and provenance model ,Ecology, Evolution, Behavior and Systematics - Abstract
We trace compositional changes of Nile sediments for 7400 km, from their sources in equatorial rift highlands of Burundi and Rwanda to their sink in the Mediterranean Sea. All chemical and physical controls on sediment petrography, mineralogy and geochemistry, including weathering, grain-size, hydraulic sorting, mechanical breakdown, anthropic impact, mixing and recycling are investigated in detail. The Nile course is controlled along its entire length by the East African–Red Sea Rift. In this anorogenic setting, detritus is derived in various proportions from volcanic fields associated with tectonic extension (Anorogenic Volcanic provenance) and from igneous, metamorphic and sedimentary rocks uplifted on the rift shoulders or exposed on the craton (Continental Block provenance). The entire spectrum of such detrital signatures is displayed in the Nile catchment. Volcaniclastic Atbara sand is generated by focused erosion of the Ethiopian basaltic plateau in semiarid climate, whereas quartzose White Nile sand reflects low erosion rates, extensive weathering and sediment trapping in lakes and swamps at equatorial to subequatorial latitudes. In the main Nile, as in its main tributary the Blue Nile, suspended load is volcaniclastic, whereas feldspatho-quartzose bedload is derived largely from basement sources, with fine to medium-grained eolian sand added along the lower course. Mixing of detrital populations with different provenance and grain size is reflected in diverse violations of settling-equivalence relationships in fluvial and deltaic sediments. Sediment delivery from Sudan has been cut off after closure of the Aswan High Dam and accelerated erosion of deltaic cusps is leading to local formation of placer lags dominated by ultradense Fe–Ti–Cr oxides, but mineralogical changes caused by man's radical modification of fluvial regimes have been minor so far. In beaches of Sinai, Gaza and Israel, the Nile volcaniclastic trace gets progressively diluted by quartzose sand recycled from eolian coastal deposits and carbonaticlastic detritus eroded from the Levant rift shoulder. Studying the compositional variability of modern sediments in big-river systems allows us to appreciate the richness of natural processes occurring in the vast drainage basin, and provides us with a key to understand the information stored in sedimentary archives and to reconstruct the evolution of the Earth's surface from the recent to the less recent past. more...
- Published
- 2015
19. Ultra-long distance littoral transport of Orange sand and provenance of the Skeleton Coast Erg (Namibia)
- Author
-
Sergio Andò, Giovanni Vezzoli, Michele Lustrino, Pieter Vermeesch, Marta Padoan, Eduardo Garzanti, Garzanti, E, Vermeesch, P, Ando', S, Lustrino, M, Padoan, M, and Vezzoli, G
- Subjects
Provenance ,Metamorphic rock ,Geochemistry ,Oceanography ,Placer deposit ,petrology ,orange river ,Paleontology ,Namibian deserts, Orange River, Diamond placers, Sedimentary petrology, Pyroxene chemistry, Garnet chemistry, Staurolite chemistry, Detrital zircon geochronology ,Geochemistry and Petrology ,detrital zircon geochronology ,Littoral zone ,detrital zircon ,staurolite ,GEO/02 - GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA ,diamond placers ,namibian desert ,sedimentary petrology ,namibian deserts ,Geology ,Cretaceous ,pyroxene chemistry ,Longshore drift ,staurolite chemistry ,sediment ,clinopyroxene ,visual_art ,Staurolite ,Geochronology ,garnet chemistry ,visual_art.visual_art_medium - Abstract
Quantitative provenance analysis based on high-resolution bulk-petrography and heavy-mineral data on beach and dune sands, integrated with detrital-zircon geochronology and chemical analyses of pyroxene, garnet and staurolite, demonstrates that sand derived from the Orange River is carried by powerful and persistent longshore currents as far as northern Namibia and southern Angola, 1750. km north of its mouth. This is the longest cell of littoral sand transport documented so far. Compositional forward modeling indicates that >=. 80% of dune sand in the Skeleton Coast is Orange-derived, the remaining more...
- Published
- 2014
- Full Text
- View/download PDF
20. Weathering geochemistry and Sr-Nd fingerprints of equatorial upper Nile and Congo muds
- Author
-
Garzanti, Eduardo, Padoan, Marta, Setti, Massimo, Najman, Yani, Peruta, Luigi, Villa, Igor Maria, Garzanti, E, Padoan, M, Peruta, L, Setti, M, Najman, Y, and Villa, I
- Subjects
Model mantle derivation age ,Chemical weathering indice ,Recycling ,Kagera catchment ,GEO/02 - GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA ,Clay mineral ,East African Rift ,550 Earth sciences & geology - Abstract
This study investigates processes of sediment generation in equatorial central Africa. An original, complete and integrated mineralogical-geochemical database on silt-sized sediments derived from different parent rocks (basalt, granite, gneiss, metapsammite, sandstone) along the East African Rift from 5°S in Tanzania to 5°N in Sudan is presented, and used to assess the incidence of diverse factors controlling sediment composition (source-rock lithology, geomorphology, hydraulic-sorting, grain-size, recycling), with particular emphasis on chemical weathering. Kaolinite abundance, CIA and αAl values consistently indicate less intense weathering along the steep inner flank and drier axis of the rift hosting Lakes Kivu and Tanganyika than in hot-humid forested highlands east of the Nile-Congo divide, where slopes are gentler and time for weathering longer. The observed order of bulk-sediment mobility (Na≥Ca>Sr>Mg>K>Ba≥Rb>Cs) roughly corresponds to the degree into which these elements are partitioned in unstable plagioclase versus K-feldspar and phyllosilicates. Weathering-limited erosion characterizes the Rwenzori massif and the Lake Albert graben where sediments are recycled from syn-rift deposits. 87Sr/86Sr ratios, 143Nd/144 Nd ratios and Sm-Nd tDM model ages of river muds proved instead to be insensitive to weathering, and provided a faithful integrated signature of the geology of each drainage basin. The comparison of CIA and WIP indices offers a key for discriminating compositional modifications due to weathering and recycling, a most challenging problem in sedimentary geochemistry. Integrated mineralogical-geochemical databases are essential to improve our understanding of weathering processes as they occur in the natural environment, and to distinguish their effect from other factors controlling sediment composition more...
- Published
- 2013
- Full Text
- View/download PDF
21. Quantifying modern erosion rates and river-sediment contamination in the Bolivian Andes
- Author
-
Giovanni Vezzoli, Alberto Resentini, Paolo Gentile, Giacomo Ghielmi, Marta Padoan, Gonzalo Mondaca, Elena Katia Villarroel, Vezzoli, G, Ghielmi, G, Mondaca, G, Resentini, A, Villarroel, E, Padoan, M, and Gentile, P more...
- Subjects
Hydrology ,geography ,geography.geographical_feature_category ,Tupiza river ,Floodplain ,Bolivian Andes ,Sediment contamination ,Drainage basin ,Fluvial ,Sediment ,Geology ,Structural basin ,Modern erosion rate ,Alluvial plain ,Tributary ,Erosion ,forward mixing model ,GEO/02 - GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA ,Earth-Surface Processes - Abstract
We use petrographic, mineralogical and geochemical data on modern river sediments of the Tupiza basin in the Bolivian Andes to investigate the relationships among human activity, heavy-metal contamination of sediments and modern erosion rates in mountain fluvial systems. Forward mixing model was used to quantify the relative contributions from each main tributary to total sediment load of the Tupiza River. The absolute sediment load was estimated by using the Pacific Southwest Inter Agency Committee model ( PSIAC, 1968 ) after two years of geological field surveys (2009; 2010), together with data obtained from the Instituto Nacional del Agua public authority ( INA, 2007 ), and suspended-load data from Aalto et al. (2006) . Our results indicate that the sediment yield in the drainage basin is 910 ± 752 ton/km 2 year and the mean erosion rate is 0.40 ± 0.33 mm/year. These values compare well with erosion rates measured by Insel et al. (2010) using 10 Be cosmogenic radionuclide concentrations in Bolivian river sediments. More than 40% of the Tupiza river load is produced in the upper part of the catchment, where highly tectonized and weathered rocks are exposed and coupled with sporadic land cover and intense human activity (mines). In the Rio Chilco basin strong erosion of upland valleys produce an increase of erosion (∼10 mm/year) and the influx of large amounts of sediment by mass wasting processes. The main floodplain of the Tupiza catchment represents a significant storage site for the heavy metals (∼657 ton/year). Fluvial sediments contain zinc, lead, vanadium, chromium, arsenic and nickel. Since the residence time of these contaminants in the alluvial plain may be more than 100 years, they may represent a potential source of pollution for human health. more...
- Published
- 2013
22. Forward compositional modelling of Alpine orogenic sand
- Author
-
GARZANTI, EDUARDO, RESENTINI, ALBERTO, VEZZOLI, GIOVANNI, ANDO', SERGIO, MALUSA', MARCO GIOVANNI, PADOAN, MARTA, Garzanti, E, Resentini, A, Vezzoli, G, Ando', S, Malusa', M, and Padoan, M
- Subjects
Provenance analysi ,Geochemistry ,River Po ,Sediment generation ,Heavy mineral ,River Rhône ,GEO/02 - GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA ,Grain density ,River Dora Baltea - Abstract
Compositional evolution of orogenic sediment can be viewed as resulting from downstream mixing of detritus shed by several end-member sources to constitute the polygenic product deposited in foreland basins. Such a model of simple mixing, which does not consider modifications caused by physical and chemical processes through the sedimentary cycle, is applied here to first-cycle detritus presently produced in the Alps to assess sediment budgets and erosion patterns across the orogen. Using the same actualistic end members, the model is applied next to the recent past to reconstruct paleodrainage changes during major Pleistocene glaciations, and finally to a more remote past to tentatively infer erosional evolution and dispersal paths in the earliest Oligocene stages of Alpine morphogeny. A decisive factor of success in such an approach is the use of large multiple datasets displaying sufficiently distinct values in diverse end members. Forward mixing models can be made for bulk petrography and heavy-mineral suites as well as for any physical (grain density), geochemical (element concentrations, stable-isotope ratios), or geochronological parameters (apatite fission tracks, zircon U-Pb age spectra), and separately on sediments of various sizes and transport modes (suspended load and bedload). By comparing and integrating several independent estimates thus obtained we progressively gain a more robust insight about diverse geological processes, and may converge eventually toward a truer vision of our past. more...
- Published
- 2012
23. Detrital Fingerprints of Fossil Continental-Subduction Zones (Axial Belt Provenance, European Alps)
- Author
-
Marta Padoan, Paolo Paparella, Eduardo Garzanti, Sergio Andò, Alberto Resentini, Giovanni Vezzoli, Marco G. Malusà, Garzanti, E, Resentini, A, Vezzoli, G, Ando', S, Malusa', M, Padoan, M, and Paparella, P more...
- Subjects
Provenance ,Subduction ,Heavy mineral ,Earth science ,Alps, Modern Sands, Axial Belt Provenance, Biplot, Decision trees ,Geochemistry ,Detritus (geology) ,Geology ,Tectonics ,Continental margin ,Penninic ,GEO/02 - GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA ,Eclogitization - Abstract
Collision orogens such as the Alps or the Himalayas are generated by plate convergence, culminating in attempted subduction of a thinned continental margin. Massive amounts of metamorphic rocks displaying high-pressure parageneses are produced during such relatively brief tectonic events and then rapidly exhumed to formthe axial backbone of the new orogen. Sediment composition provides a fundamental key to identify past events of continental subduction, although coupled detrital-geochronology techniques are needed to discriminate neometamorphic and paleometamorphic sources of detritus. Within the Austroalpine Cretaceous and Penninic Eocene axial belts of the Alps, we ideally distinguish three structural levels, each characterized by diagnostic detrital fingerprints. The shallow level chiefly consists of offscraped remnant-ocean turbidites and unmetamorphosed continental-margin sediments and mostly produces lithic to quartzolithic sedimentaclastic sands yielding very poor heavy mineral suites including ultrastable minerals. The intermediate level includes low-grade metasediments and polymetamorphic basements and sheds quartzolithic to feldspatholithoquartzose metamorphiclastic sands yielding moderately rich epidote-amphibole suites with chloritoid or garnet. The deep level contains eclogitic remnants of continent-ocean transitions and supplies feldspatholithoquartzose/feldspathoquartzose high-rank metamorphiclastic to lithic ultramaficlastic sands yielding rich to extremely rich suites dominated by garnet, hornblende, or epidote, depending on protoliths (continental vs. oceanic) and pressure/temperature paths during exhumation. Although widely overprinted under greenschist-facies or amphibolite-facies conditions, occurrence of ultradense eclogite in source areas is readily revealed by the heavy mineral concentration (HMC) index, which mirrors the average density of source rocks in the absence of hydraulicsorting effects. Rather than the pressure peak reached at depth, the metamorphic index (MI) and hornblende color index (HCI) reflect peak temperatures reached at later stages, when subduction is throttled by arrival of thicker continental crust and geothermal gradients increase, as documented in detritus derived from the Tauern window and Lepontine Dome. Experience gained from modern sediments provides fundamental help to decrypt the information stored in the sedimentary record and thus to identify and reconstruct subduction events of the past. © 2010 by The University of Chicago. All rights reserved. more...
- Published
- 2010
24. FOREWORD a Musicologie sans frontières/Muzikologija bez granice/Musicology without frontiers. Essays in Honour of Stanislav Tuksar
- Author
-
CAVALLINI, Ivano, WHITE H., CAVALLINI I, WHITE H, KATICIC R, BREKO H, PRUETT L, GANCARCZIK P, PADOAN M, PRZYBYSZEWSKA B, MARX W, WITKOWSKA E, LUPPI A, TOMIC I, DI PASQUALE M, BOISITS B, MAJER S, DOLINER G, ZORAWSKA-WITKOWSKA A, PALIC R, THER Ph, KATALINIC V, TARUSKIN R, MULLER S O, ELLIOTT R, BYRNE BODLEY L, KOS K, BUJIC B, EVERETT W, BEZIC N, and HORTON J more...
- Subjects
Aesthetics, Music, Historiography, Central Europe (Mitteleuropa), South Slavic People ,Estetica, musica, storiografia, Mitteleuropa, slavi del Sud ,Settore L-ART/07 - Musicologia E Storia Della Musica - Abstract
La vita e l'opera di Stanislav Tuksar e il suo contributo alla musicologia internazionale. In particolare gli studi di estetica della musica e di storiografia, nonché il suo lavoro di editor della "International Review of the Aesthetics and Sociology of Music" e i saggi importanti sul rapporto tra le culture nazionali e il cosmopolitismo nell'Europa centrale, in relazione alla Croazia e agli Slavi del Sud dal sedicesimo al diciannovesimo secolo. more...
- Published
- 2010
25. Detrital fission-track geochronology, provenance studies and modern erosion rates in the Alps
- Author
-
MALUSA', MARCO GIOVANNI, ANDO', SERGIO, GARZANTI, EDUARDO, PADOAN, MARTA, RESENTINI, ALBERTO, VEZZOLI, GIOVANNI, Limoncelli, M, Malusa', M, Ando', S, Garzanti, E, Limoncelli, M, Padoan, M, Resentini, A, and Vezzoli, G more...
- Subjects
fission-track, provenance analyses, erosion rates, Western Alps - Published
- 2009
26. Axial belt provenance: modern river sands from core of collision orogen
- Author
-
RESENTINI, ALBERTO, VEZZOLI, GIOVANNI, PADOAN, MARTA, ANDO', SERGIO, MALUSA', MARCO GIOVANNI, GARZANTI, EDUARDO, Paparella, P, Resentini, A, Vezzoli, G, Paparella, P, Padoan, M, Ando', S, Malusa', M, and Garzanti, E more...
- Subjects
axial belt, collision orogen, provenance analyses - Published
- 2009
27. Detrital fingerprints of fossil continental subduction zones
- Author
-
RESENTINI, ALBERTO, GARZANTI, EDUARDO, MALUSA', MARCO GIOVANNI, VEZZOLI, GIOVANNI, ANDO', SERGIO, PADOAN, MARTA, Paparella, P, Vermeesch, P., Resentini, A, Garzanti, E, Malusa', M, Vezzoli, G, Ando', S, Padoan, M, Paparella, P, and Vermeesch, P more...
- Subjects
continental subduction zones, provenance analyses, petrography - Published
- 2009
28. Petrography and Geochemistry of the Choco 10 greenstone hosted gold prospect (El Callao Gold Mining District, Venezuela)
- Author
-
PADOAN, MARTA, Rossetti, P., Padoan, M, and Rossetti, P
- Subjects
petrography, geochemistry, El Callao Gold Mining District, Venezuela - Published
- 2005
29. Magmatic versus hydrothermal activity in the roof zone of the Valle Cervo pluton (Italian Western Alps)
- Author
-
Rossetti, P, Agangi, A, Castelli, D, Ruffini, R., PADOAN, MARTA, Rossetti, P, Agangi, A, Castelli, D, Padoan, M, and Ruffini, R
- Subjects
hydrothermal activity, Biella pluton, Western Alps - Published
- 2002
30. Durvalumab as consolidation therapy in patients who received chemoradiotherapy for unresectable stage III NSCLC: Real-world data from an expanded access program in Brazil (LACOG 0120).
- Author
-
Zukin M, Gondim V, Shimada AK, Lima EMEA, Mathias C, Barra WF, William Junior WN, Padoan M, Bittencourt Y, Yamamura R, Silva CEB, Rossato LJ, Monteiro CA, Jesus RG, Gössling G, and Gelatti ACZ
- Subjects
- Humans, Male, Female, Middle Aged, Brazil, Aged, Consolidation Chemotherapy, Treatment Outcome, Adult, Progression-Free Survival, Lung Neoplasms therapy, Lung Neoplasms pathology, Lung Neoplasms drug therapy, Carcinoma, Non-Small-Cell Lung therapy, Carcinoma, Non-Small-Cell Lung drug therapy, Carcinoma, Non-Small-Cell Lung pathology, Chemoradiotherapy methods, Antibodies, Monoclonal therapeutic use, Antineoplastic Agents, Immunological therapeutic use, Neoplasm Staging
- Abstract
Objective: The PACIFIC trial established standard therapy for patients with unresectable stage III NSCLC who did not progress after platinum-based concurrent chemoradiation therapy. However, real-world data, particularly from Latin America, remain limited. The LACOG 0120 study aimed to evaluate the efficacy and safety of consolidation therapy with durvalumab in a real-world setting in Brazil., Methods: Patients with unresectable stage III NSCLC who received chemoradiotherapy followed by durvalumab consolidation therapy through an expanded access program were evaluated. The primary objective was to assess progression-free survival (PFS). Secondary endpoints included overall survival (OS), treatment compliance, and safety, with a focus on the incidence and severity of immune-mediated adverse events (NCT04948411)., Results: Thirty-one patients from seven centers were evaluated. Median follow-up was 50.3 months (95% CI: 48.6-54.4). Median PFS was 9.9 months (95% CI: 7.3-52.4), with a 36 month-PFS of 34.5% (95% CI: 17.7-52.1). Median OS was 34.9 months (95% CI: 26.0-NR), and the 36 month-OS was 46.3% (95% CI: 25.7-64.6). Durvalumab was administered for a median of 17 cycles (10 to 24), with 45.2% of patients completing the planned therapy. The main reason for discontinuation was disease progression. Treatment-related adverse events of any grade occurred in 12 patients (38.7%), with grade 3 events reported in two (6.5%). Pneumonitis was observed in 4 patients (12.9%) - grade 3 in 1 patient., Conclusions: PFS was lower in this analysis compared to the PACIFIC trial; however, OS was similar, indicating comparable efficacy in a real-world setting among Brazilian patients with unresectable stage III NSCLC. No new safety concerns were identified. more...
- Published
- 2025
- Full Text
- View/download PDF
31. Night shift work and lymphoma: results from an Italian multicentre case-control study.
- Author
-
Cocco P, Piro S, Meloni F, Montagna A, Pani M, Pilia I, Padoan M, Miligi L, Magnani C, Gambelunghe A, Muzi G, Ferri GM, Vimercati L, Zanotti R, Scarpa A, Zucca M, Latte GC, Angelucci E, De Matteis S, and Puligheddu M more...
- Subjects
- Case-Control Studies, Circadian Rhythm, Humans, Risk Factors, Work Schedule Tolerance, Leukemia, Lymphocytic, Chronic, B-Cell epidemiology, Leukemia, Lymphocytic, Chronic, B-Cell etiology, Lymphoma epidemiology, Lymphoma etiology, Shift Work Schedule adverse effects
- Abstract
Background: Night shift work can disrupt circadian rhythm and cause chronic sleep deprivation, which might increase the risk of lymphoma through immunosuppression and oxidative stress., Material and Methods: We investigated the association between night shift work and risk of lymphoma subtypes in 867 incident cases and 774 controls, who participated in a multicentre Italian study between 2011 and 2017. Based on questionnaire information, occupational experts assessed the lifetime probability of night shift work, the total number of night shifts and years of night shift work among study participants. OR and 95% CI for lymphoma and its major subtypes associated with night shift work was calculated with logistic regression, adjusting by age, gender, education, study area, marital status and family history of haemolymphatic cancer., Results: Ever working night shifts was associated with an increase in the risk of chronic lymphocytic leukaemia (CLL) (OR 1.9, 95% CI 1.14 to 3.32), which was highest after a 15-34 years latency. However, there was not a linear increase in risk by probability of exposure, years of night shift work, nor lifetime number of night shifts whether under rotating or permanent work schedules. Risk of lymphoma overall, B cell lymphoma (BCL), its major subtypes other than CLL, and other less prevalent BCL subtypes combined did not show an association., Conclusions: We found conflicting evidence of an association between night shift work and the risk of CLL. We did not observe an association with other lymphoma subtypes., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.) more...
- Published
- 2022
- Full Text
- View/download PDF
32. Occupational exposure to glyphosate and risk of lymphoma:results of an Italian multicenter case-control study.
- Author
-
Meloni F, Satta G, Padoan M, Montagna A, Pilia I, Argiolas A, Piro S, Magnani C, Gambelunghe A, Muzi G, Ferri GM, Vimercati L, Zanotti R, Scarpa A, Zucca M, De Matteis S, Campagna M, Miligi L, and Cocco P more...
- Subjects
- Adult, Aged, Case-Control Studies, Female, Glycine toxicity, Humans, Italy epidemiology, Male, Middle Aged, Risk, Glyphosate, Glycine analogs & derivatives, Herbicides toxicity, Lymphoma epidemiology, Occupational Exposure adverse effects
- Abstract
Background: The International Agency for Research on Cancer (IARC) recently classified glyphosate, the most used herbicide worldwide, as a probable human carcinogen. We inquired into the association between occupational exposure to glyphosate and risk of lymphoma subtypes in a multicenter case-control study conducted in Italy., Methods: The Italian Gene-Environment Interactions in Lymphoma Etiology (ItGxE) study took place in 2011-17 in six Italian centres. Overall, 867 incident lymphoma cases and 774 controls participated in the study. Based on detailed questionnaire information, occupational experts classified duration, confidence, frequency, and intensity of exposure to glyphosate for each study subject. Using unconditional regression analysis, we modelled risk of major lymphoma subtypes associated with exposure to glyphosate adjusted by age, gender, education, and study centre., Results: Very few study subjects (2.2%) were classified as ever exposed to glyphosate. Risk of follicular lymphoma (FL) was elevated 7-fold in subjects classified as ever exposed to glyphosate with medium-high confidence, 4.5-fold in association with medium-high cumulative exposure level, 12-fold with medium-high exposure intensity, and 6-fold with exposure for 10 days or more per year. Significant upward trends were detected with all the exposure metrics, but duration. The overall p-value for an upward trend with four independent metrics was 1.88 × 10
- 4 . There was no association with risk of lymphoma (any subtype), Non Hodgkin Lymphoma, B-cell lymphoma, or the major lymphoma subtypes other than FL., Conclusions: Our findings provide limited support to the IARC decision to classify glyphosate as Group 2A human carcinogen. more...- Published
- 2021
- Full Text
- View/download PDF
33. Genetically Determined Height and Risk of Non-hodgkin Lymphoma.
- Author
-
Moore A, Kane E, Wang Z, Panagiotou OA, Teras LR, Monnereau A, Wong Doo N, Machiela MJ, Skibola CF, Slager SL, Salles G, Camp NJ, Bracci PM, Nieters A, Vermeulen RCH, Vijai J, Smedby KE, Zhang Y, Vajdic CM, Cozen W, Spinelli JJ, Hjalgrim H, Giles GG, Link BK, Clavel J, Arslan AA, Purdue MP, Tinker LF, Albanes D, Ferri GM, Habermann TM, Adami HO, Becker N, Benavente Y, Bisanzi S, Boffetta P, Brennan P, Brooks-Wilson AR, Canzian F, Conde L, Cox DG, Curtin K, Foretova L, Gapstur SM, Ghesquières H, Glenn M, Glimelius B, Jackson RD, Lan Q, Liebow M, Maynadie M, McKay J, Melbye M, Miligi L, Milne RL, Molina TJ, Morton LM, North KE, Offit K, Padoan M, Patel AV, Piro S, Ravichandran V, Riboli E, de Sanjose S, Severson RK, Southey MC, Staines A, Stewart C, Travis RC, Weiderpass E, Weinstein S, Zheng T, Chanock SJ, Chatterjee N, Rothman N, Birmann BM, Cerhan JR, and Berndt SI more...
- Abstract
Although the evidence is not consistent, epidemiologic studies have suggested that taller adult height may be associated with an increased risk of some non-Hodgkin lymphoma (NHL) subtypes. Height is largely determined by genetic factors, but how these genetic factors may contribute to NHL risk is unknown. We investigated the relationship between genetic determinants of height and NHL risk using data from eight genome-wide association studies (GWAS) comprising 10,629 NHL cases, including 3,857 diffuse large B-cell lymphoma (DLBCL), 2,847 follicular lymphoma (FL), 3,100 chronic lymphocytic leukemia (CLL), and 825 marginal zone lymphoma (MZL) cases, and 9,505 controls of European ancestry. We evaluated genetically predicted height by constructing polygenic risk scores using 833 height-associated SNPs. We used logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI) for association between genetically determined height and the risk of four NHL subtypes in each GWAS and then used fixed-effect meta-analysis to combine subtype results across studies. We found suggestive evidence between taller genetically determined height and increased CLL risk (OR = 1.08, 95% CI = 1.00-1.17, p = 0.049), which was slightly stronger among women (OR = 1.15, 95% CI: 1.01-1.31, p = 0.036). No significant associations were observed with DLBCL, FL, or MZL. Our findings suggest that there may be some shared genetic factors between CLL and height, but other endogenous or environmental factors may underlie reported epidemiologic height associations with other subtypes., (Copyright © 2020 Moore, Kane, Wang, Panagiotou, Teras, Monnereau, Wong Doo, Machiela, Skibola, Slager, Salles, Camp, Bracci, Nieters, Vermeulen, Vijai, Smedby, Zhang, Vajdic, Cozen, Spinelli, Hjalgrim, Giles, Link, Clavel, Arslan, Purdue, Tinker, Albanes, Ferri, Habermann, Adami, Becker, Benavente, Bisanzi, Boffetta, Brennan, Brooks-Wilson, Canzian, Conde, Cox, Curtin, Foretova, Gapstur, Ghesquières, Glenn, Glimelius, Jackson, Lan, Liebow, Maynadie, McKay, Melbye, Miligi, Milne, Molina, Morton, North, Offit, Padoan, Patel, Piro, Ravichandran, Riboli, de Sanjose, Severson, Southey, Staines, Stewart, Travis, Weiderpass, Weinstein, Zheng, Chanock, Chatterjee, Rothman, Birmann, Cerhan and Berndt.) more...
- Published
- 2020
- Full Text
- View/download PDF
34. Methylation alteration of SHANK1 as a predictive, diagnostic and prognostic biomarker for chronic lymphocytic leukemia.
- Author
-
Loi E, Moi L, Fadda A, Satta G, Zucca M, Sanna S, Amini Nia S, Cabras G, Padoan M, Magnani C, Miligi L, Piro S, Gentilini D, Ennas MG, Southey MC, Giles GG, Wong Doo N, Cocco P, and Zavattari P
- Abstract
Chronic lymphocytic leukemia (CLL) is a clinically heterogeneous disease characterized by the clonal expansion of malignant B cells. To predict the clinical course of the disease, the identification of diagnostic biomarkers is urgently needed. Aberrant methylation patterns may predict CLL development and its course, being very early changes during carcinogenesis. Our aim was to identify CLL specific methylation patterns and to evaluate whether methylation aberrations in selected genes are associated with changes in gene expression. Here, by performing a genome-wide methylation analysis, we identified several CLL-specific methylation alterations. We focused on the most altered one, at a CpG island located in the body of SHANK1 gene, in our CLL cases compared to healthy controls. This methylation alteration was successfully validated in a larger cohort including 139 CLL and 20 control in silico samples. We also found a positive correlation between SHANK1 methylation level and absolute lymphocyte count, in particular CD19+ B cells, in CLL patients. Moreover, we were able to detect gains of methylation at SHANK1 in blood samples collected years prior to diagnosis. Overall, our results suggest methylation alteration at this SHANK1 CpG island as a biomarker for risk and diagnosis of CLL, and also in the personalized quantification of tumor aggressiveness., Competing Interests: CONFLICTS OF INTEREST The authors declare no conflict of interest. more...
- Published
- 2019
- Full Text
- View/download PDF
35. Outcome of Patients With Breast Cancer Treated in a Private Health Care Institution in Brazil.
- Author
-
Boukai A, Gonçalves AC, Padoan M, Andrade P, Carvalho N, Lemos F, Almeida T, Salem J, Gauí MFD, Teich N, and Araujo LH
- Subjects
- Adult, Aged, Aged, 80 and over, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Brazil epidemiology, Breast Neoplasms pathology, Disease-Free Survival, Female, Hospitals, Private, Humans, Lymph Node Excision, Mastectomy, Mastectomy, Segmental methods, Middle Aged, Neoplasm Staging, Prospective Studies, Breast Neoplasms drug therapy, Breast Neoplasms epidemiology, Breast Neoplasms surgery, Prognosis
- Abstract
Purpose: Middle-income countries like Brazil often have a dichotomous health care system in which patients may be treated in either public or private institutions that differ substantially in terms of level of access to diagnostic and therapeutic procedures., Patients and Methods: This was a prospective, observational study to assess real-world data in 1,230 female patients with breast cancer who were treated in a private health care institution between 2012 and 2016 in Brazil., Results: Breast cancer in these patients mostly was diagnosed at early (79.0% stages I or II) or locally advanced (16.1% stage III) stages. The primary tumor was resected in 89.0% of cases, most often through breast-conserving surgery (55.1%). Patients with locally advanced disease received more aggressive therapy (eg, higher rates of mastectomy, axillary dissection and chemotherapy use) than patients with early-stage disease. The estimated 2-year overall survival (OS) was 95.3%. Survival was significantly longer among patients with stage I or II disease (2-year OS, 97.9% and 97.5%, respectively) than those with stage III or IV disease (89.4% and 69.5%, respectively; P < .01). Tumor grade was also correlated with OS in the overall cohort ( P = .05); triple-negative status was only prognostic for patients with stage III disease ( P < .01)., Conclusion: The data provided aid understanding of the current scenario of breast cancer presentation and treatment in the Brazilian private health care system and may serve as a foundation to guide resource allocation. Our results reinforce the need to pursue adequate access to cancer care in low- and middle-income countries to optimize patient outcome. more...
- Published
- 2018
- Full Text
- View/download PDF
36. Activation of the aryl hydrocarbon receptor and risk of lymphoma subtypes.
- Author
-
Sanna S, Satta G, Padoan M, Piro S, Gambelunghe A, Miligi L, Ferri GM, Magnani C, Muzi G, Rigacci L, Cabras MG, Angelucci E, Latte GC, Gabbas A, Ennas MG, and Cocco P
- Abstract
The aryl hydrocarbon receptor (AhR) is a transcription factor implicated in several pathways known to be relevant in lymphomagenesis. Aim of our study was to explore the link between AhR activation and risk of lymphoma subtypes. We used a Dual-Luciferase Assay
® and a luminometer to detect the activation of the luciferase gene, in HepG2 cells transfected with a specific reporter systems, by a 50 ml serum aliquot of cases of diffuse large B cell lymphoma (N = 108), follicular lymphoma (N = 85), chronic lymphocytic leukemia (N = 72), multiple myeloma (N = 80), and Hodgkin lymphoma (N = 94) and 357 controls who participated in the multicentre Italian study on gene-environment interactions in lymphoma etiology (ItGxE). Risk of each lymphoma subtype associated with AhR activation was calculated with polytomous logistic regression adjusting by age, gender, and study centre. The overall prevalence of AhR activation ranged 13.9-23.6% by subtype, and it varied by study area (8-39%). Risk associated with AhR activation was moderately elevated for follicular lymphoma (OR = 1.56, 95% CI 0.86, 2.80) and chronic lymphocytic leukemia (OR = 1.56, 95% CI 0.83, 2.96). Despite our inconclusive findings about the association with risk of lymphoma subtypes, we showed that the Dual-Luciferase Assay can be reliably and easily applied in population-based studies to detect AhR activation., Competing Interests: None. more...- Published
- 2017
37. Correction: genetic variants associated with increased risk of malignant pleural mesothelioma: a genome-wide association study.
- Author
-
Matullo G, Guarrera S, Betti M, Fiorito G, Ferrante D, Voglino F, Cadby G, Di Gaetano C, Rosa F, Russo A, Hirvonen A, Casalone E, Tunesi S, Padoan M, Giordano M, Aspesi A, Casadio C, Ardissone F, Ruffini E, Betta PG, Libener R, Guaschino R, Piccolini E, Neri M, Musk AW, de Klerk NH, Hui J, Beilby J, James AL, Creaney J, Robinson BW, Mukherjee S, Palmer LJ, Mirabelli D, Ugolini D, Bonassi S, Magnani C, and Dianzani I more...
- Published
- 2015
- Full Text
- View/download PDF
38. Study of socio-economic characteristics, diagnosis and outcome of women participating or not participating in mammogram screening.
- Author
-
Padoan M, Ferrante D, Pretti G, and Magnani C
- Subjects
- Aged, Female, Humans, Italy, Middle Aged, Program Development, Program Evaluation, Secondary Prevention methods, Socioeconomic Factors, Surveys and Questionnaires, Breast Neoplasms diagnosis, Mammography statistics & numerical data, Mass Screening methods, Patient Acceptance of Health Care
- Abstract
Background: Breast cancer is the most common cancer and the leading cause of cancer death in women. Early detection is essential to reduce cancer mortality. Studying participation in an organised breast cancer screening program is important in order to evaluate the program effectiveness. Breast screening both enables minimally invasive breast surgery and reduces cause-specific mortality., Methods: The main objective of this study was to evaluate, through the use of a questionnaire, the influence of socio-economic characteristics (age, education, occupational status, participation in other screening programs etc.) on participation in a mammography screening program organized by the local health units (LHU) of Novara and Verbano-Cusio-Ossola, located in the Italian region of Piedmont. A sample of 500 women was identified. Eligible participants included women aged 50-69 years, resident in the area of the LHUs of Novara and Verbano-Cusio-Ossola who had been invited to participate in the screening program 2006-2007. Twenty six women were excluded, leaving 474 women in the final analysis: 23 women were unable to be contacted due to incorrect contact details and 3 women were unable to complete the questionnaire due to neurodegenerative diseases. A postal questionnaire was sent by post during 2008-2009. Two postal reminders were sent to non-responders, followed by a phone call. One group of women received an additional copy of the questionnaire with the first postal reminder and another group received only the reminder letter. The socio-personal profiles and their influence in women's participation in the screening program were evaluated., Results: Among the responders, 93% of the women (348/374) received a mammogram at least once following LHU invitation for check-up. 74.1% of women got a mammogram at least once using the organized screening program, an additional 17.8% got a mammogram in a private clinic, and the type of prevention was unknown for 8.1% of the women. 25.3% began having mammogram for prevention before the age of 45., Conclusions: A screening program is a sanitary intervention of secondary prevention and the identification of the attitude towards this kind of prevention is quite complex. Some causes of non-participation in this screening program were the belief that mammogram is not necessary, fear of pain, and presence of family problems. This study obtained a higher response than expected and the data also allowed an assessment of the degree of participation of women in the prevention services, identifying that most of them carried out a mammogram using an organized screening program. more...
- Published
- 2014
- Full Text
- View/download PDF
39. Genetic variants associated with increased risk of malignant pleural mesothelioma: a genome-wide association study.
- Author
-
Matullo G, Guarrera S, Betti M, Fiorito G, Ferrante D, Voglino F, Cadby G, Di Gaetano C, Rosa F, Russo A, Hirvonen A, Casalone E, Tunesi S, Padoan M, Giordano M, Aspesi A, Casadio C, Ardissone F, Ruffini E, Betta PG, Libener R, Guaschino R, Piccolini E, Neri M, Musk AW, de Klerk NH, Hui J, Beilby J, James AL, Creaney J, Robinson BW, Mukherjee S, Palmer LJ, Mirabelli D, Ugolini D, Bonassi S, Magnani C, and Dianzani I more...
- Subjects
- Aged, Australia, Case-Control Studies, Female, Genetic Markers, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Italy, Male, Mesothelioma etiology, Middle Aged, Odds Ratio, Pleural Neoplasms etiology, Polymorphism, Single Nucleotide, Risk Factors, Asbestos adverse effects, Genetic Loci, Mesothelioma genetics, Neoplasm Proteins genetics, Occupational Exposure adverse effects, Pleural Neoplasms genetics
- Abstract
Asbestos exposure is the main risk factor for malignant pleural mesothelioma (MPM), a rare aggressive tumor. Nevertheless, only 5-17% of those exposed to asbestos develop MPM, suggesting the involvement of other environmental and genetic risk factors. To identify the genetic risk factors that may contribute to the development of MPM, we conducted a genome-wide association study (GWAS; 370,000 genotyped SNPs, 5 million imputed SNPs) in Italy, among 407 MPM cases and 389 controls with a complete history of asbestos exposure. A replication study was also undertaken and included 428 MPM cases and 1269 controls from Australia. Although no single marker reached the genome-wide significance threshold, several associations were supported by haplotype-, chromosomal region-, gene- and gene-ontology process-based analyses. Most of these SNPs were located in regions reported to harbor aberrant alterations in mesothelioma (SLC7A14, THRB, CEBP350, ADAMTS2, ETV1, PVT1 and MMP14 genes), causing at most a 2-3-fold increase in MPM risk. The Australian replication study showed significant associations in five of these chromosomal regions (3q26.2, 4q32.1, 7p22.2, 14q11.2, 15q14). Multivariate analysis suggested an independent contribution of 10 genetic variants, with an Area Under the ROC Curve (AUC) of 0.76 when only exposure and covariates were included in the model, and of 0.86 when the genetic component was also included, with a substantial increase of asbestos exposure risk estimation (odds ratio, OR: 45.28, 95% confidence interval, CI: 21.52-95.28). These results showed that genetic risk factors may play an additional role in the development of MPM, and that these should be taken into account to better estimate individual MPM risk in individuals who have been exposed to asbestos. more...
- Published
- 2013
- Full Text
- View/download PDF
40. Diagnostic accuracy and reproducibility of pleural and lung ultrasound in discriminating cardiogenic causes of acute dyspnea in the emergency department.
- Author
-
Cibinel GA, Casoli G, Elia F, Padoan M, Pivetta E, Lupia E, and Goffi A
- Subjects
- Acute Disease, Adult, Aged, Aged, 80 and over, Cardiovascular Diseases diagnosis, Cohort Studies, Diagnosis, Differential, Dyspnea diagnosis, Dyspnea etiology, Emergency Service, Hospital, Female, Humans, Lung Diseases complications, Lung Diseases diagnosis, Male, Middle Aged, Observer Variation, Pleural Diseases complications, Pleural Diseases diagnosis, Point-of-Care Systems, Predictive Value of Tests, Prospective Studies, Reproducibility of Results, Risk Assessment, Sensitivity and Specificity, Severity of Illness Index, Ultrasonography, Doppler, Cardiovascular Diseases diagnostic imaging, Dyspnea diagnostic imaging, Lung Diseases diagnostic imaging, Pleural Diseases diagnostic imaging
- Abstract
Dyspnea is a common symptom in patients admitted to the Emergency Department (ED), and discriminating between cardiogenic and non-cardiogenic dyspnea is often a clinical dilemma. The initial diagnostic work-up may be inaccurate in defining the etiology and the underlying pathophysiology. The aim of this study was to evaluate the diagnostic accuracy and reproducibility of pleural and lung ultrasound (PLUS), performed by emergency physicians at the time of a patient's initial evaluation in the ED, in identifying cardiac causes of acute dyspnea. Between February and July 2007, 56 patients presenting to the ED with acute dyspnea were prospectively enrolled in this study. In all patients, PLUS was performed by emergency physicians with the purpose of identifying the presence of diffuse alveolar-interstitial syndrome (AIS) or pleural effusion. All scans were later reviewed by two other emergency physicians, expert in PLUS and blinded to clinical parameters, who were the ultimate judges of positivity for diffuse AIS and pleural effusion. A random set of 80 recorded scannings were also reviewed by two inexperienced observers to assess inter-observer variability. The entire medical record was independently reviewed by two expert physicians (an emergency medicine physician and a cardiologist) blinded to the ultrasound (US) results, in order to determine whether, for each patient, dyspnea was due to heart failure, or not. Sensitivity, specificity, and positive/negative predictive values were obtained; likelihood ratio (LR) test was used. Cohen's kappa was used to assess inter-observer agreement. The presence of diffuse AIS was highly predictive for cardiogenic dyspnea (sensitivity 93.6%, specificity 84%, positive predictive value 87.9%, negative predictive value 91.3%). On the contrary, US detection of pleural effusion was not helpful in the differential diagnosis (sensitivity 83.9%, specificity 52%, positive predictive value 68.4%, negative predictive value 72.2%). Finally, the coexistence of diffuse AIS and pleural effusion is less accurate than diffuse AIS alone for cardiogenic dyspnea (sensitivity 81.5%, specificity 82.8%, positive predictive value 81.5%, negative predictive value 82.8%). The positive LR was 5.8 for AIS [95% confidence interval (CI) 4.8-7.1] and 1.7 (95% CI 1.2-2.6) for pleural effusion, negative LR resulted 0.1 (95% CI 0.0-0.4) for AIS and 0.3 (95% CI 0.1-0.8) for pleural effusion. Agreement between experienced and inexperienced operators was 92.2% (p < 0.01) and 95% (p < 0.01) for diagnosis of AIS and pleural effusion, respectively. In early evaluation of patients presenting to the ED with dyspnea, PLUS, performed with the purpose of identifying diffuse AIS, may represent an accurate and reproducible bedside tool in discriminating between cardiogenic and non-cardiogenic dyspnea. On the contrary, US detection of pleural effusions does not allow reliable discrimination between different causes of acute dyspnea in unselected ED patients. more...
- Published
- 2012
- Full Text
- View/download PDF
41. Pooled analysis of NAT2 genotypes as risk factors for asbestos-related malignant mesothelioma.
- Author
-
Betti M, Neri M, Ferrante D, Landi S, Biava A, Gemignani F, Bertolotti M, Mirabelli D, Padoan M, Ugolini D, Botta M, Bonassi S, Magnani C, and Dianzani I
- Subjects
- Acetylation, Aged, Case-Control Studies, Databases, Factual, Female, Finland, Genotype, Humans, Italy, Logistic Models, Male, Mesothelioma chemically induced, Middle Aged, Occupational Diseases chemically induced, Occupational Diseases genetics, Occupational Exposure adverse effects, Odds Ratio, Phenotype, Pleural Neoplasms chemically induced, Arylamine N-Acetyltransferase genetics, Asbestos adverse effects, Carcinogens, Genetic Predisposition to Disease, Mesothelioma genetics, Pleural Neoplasms genetics, Polymorphism, Genetic
- Abstract
Malignant mesothelioma (MM) is a rare and aggressive tumor of the pleura. The most important causal factor for the development of MM is occupational exposure to asbestos. Different lines of evidence suggest a role of genetic background in MM development, as for other cancers. Two published studies observed an association between MM and N-acetyl-transferase 2 (NAT2) polymorphisms. First, a Finnish study observed that the NAT2 slow acetylator phenotype was associated with an increased risk of MM. Conversely, MM risk was higher in Italian subjects carrying the NAT2 fast acetylator genotypes. The conflicting results obtained in Finland and Italy could be ascribed to random chance, considering the small panel of patients and controls in the two studies, but also ethnic or other differences may have been important. To ascertain the role of NAT2 genotype, we performed a study on 252 MM patients and 262 controls recruited in two Northern Italy areas that were characterized by high asbestos exposure, due to intense industrial activities (an asbestos cement factory in Casale Monferrato, mainly shipyards and refineries in Liguria). Unconditional multivariate logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). NAT2 fast acetylator genotypes showed an increased OR, although not statistically significant, both in asbestos-exposed subjects (OR=1.47; 95% CI=0.96-2.26) and in the entire population (OR=1.38; 95% CI=0.93-2.04). These results suggest that NAT2 polymorphisms do not exert a strong effect on individual susceptibility to MM. more...
- Published
- 2009
- Full Text
- View/download PDF
42. Long-term follow-up of toluene diisocyanate-induced asthma.
- Author
-
Padoan M, Pozzato V, Simoni M, Zedda L, Milan G, Bononi I, Piola C, Maestrelli P, Boschetto P, and Mapp CE
- Subjects
- Adult, Asthma physiopathology, Bronchial Provocation Tests, Female, Follow-Up Studies, Humans, Logistic Models, Longitudinal Studies, Male, Methacholine Chloride, Methacholine Compounds, Middle Aged, Occupational Diseases physiopathology, Occupational Exposure, Prognosis, Respiratory Function Tests, Asthma chemically induced, Occupational Diseases chemically induced, Toluene 2,4-Diisocyanate adverse effects
- Abstract
Eighty-seven cases of occupational asthma induced by toluene diisocyanate (TDI) were diagnosed by an inhalation challenge with TDI and methacholine. After an average follow-up interval of 11 yrs, all subjects were re-examined. Of the 87 subjects examined, 13 (15%) had remained in the same job, 44 (50.5%) had been removed from exposure for <10 yrs and 30 (34.5%) had been removed for >10 yrs. The proportion of subjects who experienced symptoms of asthma and those who were hyperresponsive to methacholine was significantly lower. Of the patients, 59% used short-acting bronchodilators, 8% long-acting bronchodilators and 18% were on regular inhaled glucocorticoids. Thus, multiple regression analysis showed a positive correlation between forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) at follow-up and FVC and FEV1 at diagnosis, and a negative correlation with smoking and with therapy with bronchodilators. Stepwise logistic regression showed that the follow-up provocative dose causing a 20% fall in the FEV1 (PD20) could be predicted from baseline PD20. These results indicate that respiratory symptoms and airway hyperresponsiveness to methacholine persist in subjects removed from exposure to TDI for >10 yrs. A more favourable prognosis was associated with a better lung function and a lower degree of airway hyperresponsiveness to methacholine at diagnosis. more...
- Published
- 2003
- Full Text
- View/download PDF
43. Glutathione S-transferase GSTP1 is a susceptibility gene for occupational asthma induced by isocyanates.
- Author
-
Mapp CE, Fryer AA, De Marzo N, Pozzato V, Padoan M, Boschetto P, Strange RC, Hemmingsen A, and Spiteri MA
- Subjects
- Adult, Bronchial Hyperreactivity genetics, Female, Gene Frequency, Genotype, Glutathione S-Transferase pi, Humans, Male, Middle Aged, Occupational Exposure, Time Factors, Asthma chemically induced, Asthma genetics, Genetic Predisposition to Disease genetics, Glutathione Transferase genetics, Isoenzymes genetics, Occupational Diseases genetics, Toluene 2,4-Diisocyanate adverse effects
- Abstract
Background: Polymorphism at the pi class glutathione-S-transferase locus (GSTP1) is associated with allergen-induced asthma and related phenotypes., Objective: We sought to determine whether GSTP1 polymorphism influences susceptibility to asthma induced by toluene diisocyanate (TDI)., Methods: The role of GSTP1 was assessed in 131 workers exposed to TDI, 92 with TDI-induced asthma and 39 asymptomatic subjects. The phenotype of the disease was characterized by using detailed clinical history, lung volumes, airway responsiveness to methacholine, and airway responsiveness to TDI. GST genotypes were determined by using PCR-based assays., Results: In patients exposed to TDI for 10 or more years, the frequency of the GSTP1 Val/Val genotype was lower in subjects who had asthma (odds ratio, 0.23; 95% confidence interval, 0.05-1.13; P =.074). Similarly, the frequency of this genotype was significantly lower in subjects with evidence of moderate-to-severe airway hyperresponsiveness to methacholine compared with the frequency in subjects with normal or mild hyperresponsiveness (P =.033)., Conclusion: These data suggest that homozygosity for the GSTP1*Val allele confers protection against TDI-induced asthma and airway hyperresponsiveness. This view is supported by the finding that the protective effect increases in proportion to the duration of exposure to TDI. more...
- Published
- 2002
- Full Text
- View/download PDF
44. Extracellular NAD(+) induces calcium signaling and apoptosis in human osteoblastic cells.
- Author
-
Romanello M, Padoan M, Franco L, Veronesi V, Moro L, and D'Andrea P
- Subjects
- ADP-ribosyl Cyclase, ADP-ribosyl Cyclase 1, Adenosine Diphosphate Ribose analogs & derivatives, Adenosine Diphosphate Ribose metabolism, Antigens, Differentiation metabolism, Calcium metabolism, Calcium Signaling drug effects, Cell Count, Cell Division drug effects, Cell Line, Chelating Agents pharmacology, Cyclic ADP-Ribose, Enzyme Activation drug effects, Enzyme Inhibitors pharmacology, Fluorescent Dyes, Fura-2 analogs & derivatives, Humans, Membrane Glycoproteins, Microscopy, Video, NAD pharmacology, NAD+ Nucleosidase metabolism, Osteoblasts cytology, Osteoblasts drug effects, Ryanodine pharmacology, Stimulation, Chemical, Thapsigargin pharmacology, Antigens, CD, Apoptosis, Calcium Signaling physiology, Extracellular Space metabolism, NAD metabolism, Osteoblasts metabolism
- Abstract
ADP-ribosyl cyclase/CD38 is a bifunctional enzyme that catalyzes at its ectocellular domain the synthesis from NAD(+) (cyclase) and the hydrolysis (hydrolase) of the calcium-mobilizing second messenger cyclic ADP ribose (cADPR). Furthermore, CD38 mediates cADPR influx inside a number of cells, thereby inducing Ca(2+) mobilization. Intracellularly, cADPR releases Ca(2+) from ryanodine-sensitive pools, thus activating several Ca(2+)-dependent functions. Among these, the inhibition of osteoclastic-mediated bone resorption has been demonstrated. We found that HOBIT human osteoblastic cells display ADP-ribosyl cyclase activity and we examined the effects of CD38 stimulation on osteoblasts function. Extracellular NAD(+) induced elevation of cytosolic calcium due to both Ca(2+) influx from the extracellular medium and Ca(2+) release from ryanodine-sensitive intracellular stores. Culturing these cells in the presence of NAD(+) caused a complete growth arrest with a time-dependent decrease of cell number and the appearance of apoptotic nuclei. The first changes could be observed after 24 h of treatment and became fully evident after 72-96 h. We propose a role of extracellular NAD(+) in bone homeostatic control., (Copyright 2001 Academic Press.) more...
- Published
- 2001
- Full Text
- View/download PDF
45. Influence of length of time on dialysis before grafting on kidney transplant results.
- Author
-
Vianello A, Padoan MV, Calconi G, Chiara G, D'Annibale A, and Maresca MC
- Subjects
- Adolescent, Adult, Aged, Analysis of Variance, Cadaver, Cyclosporine adverse effects, Cyclosporine therapeutic use, Female, Graft Survival, Humans, Immunosuppressive Agents adverse effects, Immunosuppressive Agents therapeutic use, Male, Middle Aged, Time Factors, Treatment Outcome, Kidney Transplantation adverse effects, Kidney Transplantation mortality, Kidney Transplantation physiology, Kidney Transplantation statistics & numerical data, Renal Dialysis statistics & numerical data
- Abstract
The outcome of kidney transplantation was evaluated in 246 nondiabetic, CsA-treated recipients of primary cadaver transplant, divided into 4 groups according to length of time on dialysis: group <; or = 2, 0-24 months; group 2-5, 25-60 months; group 5-15, 61-180 months; group > 15, over 180 months. The 4 groups did not differ in graft survival, proteinuria (g/die), or estimated GFR values at 1, 2, 3, 4, and 5 years after grafting. They did not differ in the frequency of cataract, hip osteonecrosis, tumors, or posttransplant diabetes mellitus at 3 years after grafting. Ocular hypertone (p < 0.02), tendon ruptures (p < 0.001), arterial occlusive disease of lower limbs (p < 0.01), cholelithiasis (p < 0.05), and chronic hepatitis--which occurred only in anti-HCV and/or HBs Ag-positive patients--(p < 0.001), were more frequent in group > 15, and in all these cases but ocular hypertone a linear trend of increasing frequencies with increasing dialytic age was statistically significant. Group 5-15 had the lowest patient survival (p < 0.02). Moreover, a progressive decline of patient survival with increasing dialytic age was noted in groups < or = 2, 2-5, and 5-15. Unexpectedly, group > 15 had remarkably good survival, and this finding denies the hypothesis of a purely linear decline of patient survival after transplantation with increasing dialytic age. more...
- Published
- 1996
- Full Text
- View/download PDF
46. Plasma steroid responses to circadian-stage-specified injection of different doses of the ACTH analogue alsactide (ACTH 1-17) in healthy adult human males.
- Author
-
Veglio F, Padoan M, Gambino M, Paccotti P, Terzolo M, and Angeli A
- Subjects
- Adult, Aldosterone blood, Drug Administration Schedule, Humans, Hydrocortisone blood, Injections, Intravenous, Injections, Subcutaneous, Male, Progesterone blood, Testosterone blood, Adrenocorticotropic Hormone administration & dosage, Circadian Rhythm drug effects, Glucocorticoids blood, Peptide Fragments administration & dosage
- Abstract
Plasma cortisol, progesterone, testosterone and aldosterone levels were measured on serial blood samples drawn in 10 healthy adult human males up to 6h after single administration at about 07 of increasing amounts of the short-chain analogue ACTH-agonist alsactide (Synchrodyn 1-17). The following doses were employed: 2, 4, 8, 10 and 20 micrograms subcutaneously (s.c.), as well as 2, 4 and 8 micrograms intravenously (i.v.). Data were compared with those obtained by placebo (isotonic saline) injections. The s.c. injections of 2 and 4 micrograms resulted to be ineffective in changing the hormonal pattern. A significant rise of cortisol and progesterone, but not of aldosterone and testosterone, followed the s.c. injections of 8 and 10 micrograms. The differential pattern of the glucocorticoid vs. the mineralocorticoid response was also apparent after the s.c. injection of 20 micrograms alsactide; when compared with placebo, this dose was able to elicit a significant increase of all examined hormones except testosterone. All i.v. injections of 2, 4 and 8 micrograms alsactide were effective; the highest dose did cause a sustained rise of plasma cortisol, progesterone and aldosterone, but also the other doses were able to change significantly the mineralocorticoid levels. These results provide evidence that circadian-stage-specified s.c. or i.v. administration of the analogue can be employed in the clinical practice for enhancing selectively and transiently the morning glucocorticoid secretion. more...
- Published
- 1988
- Full Text
- View/download PDF
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.