1
|
Faillace L, Alesini D, Bisogni G, Bosco F, Carillo M, Cirrone P, Cuttone G, De Arcangelis D, De Gregorio A, Di Martino F, Favaudon V, Ficcadenti L, Francescone D, Franciosini G, Gallo A, Heinrich S, Migliorati M, Mostacci A, Palumbo L, Patera V, Patriarca A, Pensavalle J, Perondi F, Remetti R, Sarti A, Spataro B, Torrisi G, Vannozzi A, Giuliano L. Perspectives in linear accelerator for FLASH VHEE: Study of a compact C-band system. Phys Med 2022; 104:149-159. [PMID: 36427487 DOI: 10.1016/j.ejmp.2022.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 10/10/2022] [Accepted: 10/23/2022] [Indexed: 11/24/2022] Open
Abstract
PURPOSE In order to translate the FLASH effect in clinical use and to treat deep tumors, Very High Electron Energy irradiations could represent a valid technique. Here, we address the main issues in the design of a VHEE FLASH machine. We present preliminary results for a compact C-band system aiming to reach a high accelerating gradient and high current necessary to deliver a Ultra High Dose Rate with a beam pulse duration of 3μs. METHODS The proposed system is composed by low energy high current injector linac followed by a high acceleration gradient structure able to reach 60-160 MeV energy range. To obtain the maximum energy, an energy pulse compressor options is considered. CST code was used to define the specifications RF parameters of the linac. To optimize the accelerated current and therefore the delivered dose, beam dynamics simulations was performed using TSTEP and ASTRA codes. RESULTS The VHEE parameters Linac suitable to satisfy FLASH criteria were simulated. Preliminary results allow to obtain a maximum energy of 160 MeV, with a peak current of 200 mA, which corresponds to a charge of 600 nC. CONCLUSIONS A promising preliminary design of VHEE linac for FLASH RT has been performed. Supplementary studies are on going to complete the characterization of the machine and to manufacture and test the RF prototypes.
Collapse
Affiliation(s)
- L Faillace
- INFN Laboratori Nazionali di Frascati, Italy.
| | - D Alesini
- INFN Laboratori Nazionali di Frascati, Italy
| | - G Bisogni
- INFN Sezione di Pisa, Italy; Department of Physics, University of Pisa, 56127 Pisa, Italy
| | - F Bosco
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - M Carillo
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - P Cirrone
- INFN Laboratori Nazionali del Sud, Catania, Italy
| | - G Cuttone
- INFN Laboratori Nazionali del Sud, Catania, Italy
| | - D De Arcangelis
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - A De Gregorio
- INFN Sezione di Roma, Italy; Department of Physics, Sapienza University, Piazzale Aldo Moro 2, 00185 Rome, Italy
| | - F Di Martino
- U.O. Fisica Sanitaria, Azienda Universitaria Ospedaliera Pisana, Pisa, Italy
| | - V Favaudon
- Institut Curie, Paris-Saclay University, PSL Research University, INSERM U1021/UMR3347, Orsay, France
| | - L Ficcadenti
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - D Francescone
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - G Franciosini
- INFN Sezione di Roma, Italy; Department of Physics, Sapienza University, Piazzale Aldo Moro 2, 00185 Rome, Italy
| | - A Gallo
- INFN Laboratori Nazionali di Frascati, Italy
| | - S Heinrich
- Institut Curie, Paris-Saclay University, PSL Research University, INSERM U1021/UMR3347, Orsay, France
| | - M Migliorati
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - A Mostacci
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - L Palumbo
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - V Patera
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - A Patriarca
- Institut Curie, PSL Research University, Proton Therapy Centre, Centre Universitaire, Orsay, France
| | - J Pensavalle
- INFN Sezione di Pisa, Italy; Department of Physics, University of Pisa, 56127 Pisa, Italy
| | - F Perondi
- SBAI Department, Sapienza University of Rome, Italy
| | - R Remetti
- SBAI Department, Sapienza University of Rome, Italy
| | - A Sarti
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| | - B Spataro
- INFN Laboratori Nazionali di Frascati, Italy
| | - G Torrisi
- INFN Laboratori Nazionali del Sud, Catania, Italy
| | - A Vannozzi
- INFN Laboratori Nazionali di Frascati, Italy
| | - L Giuliano
- SBAI Department, Sapienza University of Rome, Italy; INFN Sezione di Roma, Italy
| |
Collapse
|
2
|
Verona Rinati G, Felici G, Galante F, Gasparini A, Giuliano L, Heinrich S, Pacitti M, Prestopino G, Vanreusel V, Verellen D, Verona C, Marinelli M. OC-0284 Development of a novel diamond based Schottky diode detector for FLASH radiotherapy dosimetry. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02542-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
3
|
Peivandi A, Santarpino G, Nasso G, Avolio M, Tanzariello M, Giuliano L, Speziale G, Dell 'Aquila A. Multicenter Validation of ACEF II Risk Score: A Reliable Predictive Instrument for CABG Patients. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- A. Peivandi
- Klinik für Herzchirurgie Münster, Münster, Deutschland
| | - G. Santarpino
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - G. Nasso
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - M. Avolio
- Clinical Data Management, GVM Care & Research, Rome, Italy
| | - M. Tanzariello
- Clinical Data Management, GVM Care & Research, Rome, Italy
| | - L. Giuliano
- Clinical Data Management, GVM Care & Research, Rome, Italy
| | - G. Speziale
- Department of Cardiac Surgery, Anthea Hospital, GVM Care & Research, Bari, Italy
| | - A. Dell 'Aquila
- Universitätsklinikum Münster - Klinik für Herzchirurgie Münster, Münster, Deutschland
| |
Collapse
|
4
|
Giuliano L, Franciosini G, Dutreix M, Faillace L, Felici G, Migliorati M, Mostacci A, Palumbo L, Patriarca A, Favaudon V, Heinrich S. S-BAND LOW ENERGY LINEAR ACCELERATOR FOR FLASH IRRADIATION. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01666-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
5
|
Felici G, Galante F, Barone S, Di Francesco M, Grasso L, Pacitti M, Patera V, Sarti A, Fischetti M, Trigilio A, Toppi M, Traini G, Palumbo L, Faillace L, Mostacci A, Migliorati M, Giuliano L, Schiavi A, Marafini M, De Simoni M, Battistoni G, Di Martino F, Franciosini G, Paiar F, Linsalata S. A PRELIMINARY STUDY ON RADIATION PROTECTION REQUIREMENTS FOR A FLASH IOERT LINAC. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01669-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
6
|
Heinrich S, Aggar LK, Giuliano L, Felici G, Favaudon V, Dutreix M. FLASH Modalities Track (Oral Presentations) MONITORING A FLASH BEAM: FOR PRECLINICAL STUDIES AND TOWARDS CLINICAL APPLICATIONS. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01454-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
7
|
Dubail M, Portier L, Heinrich S, Giuliano L, Abar L, Favaudon V, Dutreix M, Fouillade C. FLASH Mechanisms Track (Oral Presentations) NEW MODELS FOR FLASH STUDIES. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01533-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
8
|
Faillace L, Alesini D, Cuttone G, Favaudon V, Heinrich S, Giuliano L, Mostacci A, Palumbo L, Patera V, Patriarca A, Torrisi G, Migliorati M. FLASH Modalities Track (Oral Presentations) PERSPECTIVES IN LINEAR ACCELERATOR FOR FLASH VHEE : STUDY OF A COMPACT C BAND SYSTEM. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01511-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
9
|
Toscano D, Arena D, Cerchio S, Giuliano L, Sarzi L, Massazza G, Stella M. Static-progressive orthosis for hand closure. Burns Open 2021. [DOI: 10.1016/j.burnso.2021.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
10
|
Broggi G, Reggio E, Giuliano L, Palmucci S, Caltabiano R, Lanzafame S. Parotid gland involvement in Heerfordt syndrome: a case report. Pathologica 2017; 109:418-420. [PMID: 29449738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
Sarcoidosis is a multisystemic granulomatous disease characterized by the presence of noncaseating granulomas, the exact etiology of which is yet to be determined. Most of patients show granulomas located in the lungs or in the related lymph nodes. However, lesions can affect any organ. Noncaseating granulomas are not a pathognomonic sign of sarcoidosis, being observed also in other diseases, therefore the diagnosis is often of exclusion. We report a case of sarcoidosis with parotid gland involvement in the context of a Heerfordt syndrome, discussing about its clinical presentation, pathogenesis, pathology and differential diagnosis with other granulomatous diseases.
Collapse
Affiliation(s)
- G Broggi
- Department G.F. Ingrassia, Section of Anatomic Pathology, University of Catania, Italy
| | - E Reggio
- Department G.F. Ingrassia, Section of Neurosciences, University of Catania, Italy
| | - L Giuliano
- Department G.F. Ingrassia, Section of Neurosciences, University of Catania, Italy
| | - S Palmucci
- Division of Radiology, 'Policlinico Vittorio Emanuele' University Hospital, University of Catania, Italy
| | - R Caltabiano
- Department G.F. Ingrassia, Section of Anatomic Pathology, University of Catania, Italy
| | - S Lanzafame
- Department G.F. Ingrassia, Section of Anatomic Pathology, University of Catania, Italy
| |
Collapse
|
11
|
Bortoluzzi G, Romeo T, La Cono V, La Spada G, Smedile F, Esposito V, Sabatino G, Di Bella M, Canese S, Scotti G, Bo M, Giuliano L, Jones D, Golyshin PN, Yakimov MM, Andaloro F. Ferrous iron- and ammonium-rich diffuse vents support habitat-specific communities in a shallow hydrothermal field off the Basiluzzo Islet (Aeolian Volcanic Archipelago). Geobiology 2017; 15:664-677. [PMID: 28383164 DOI: 10.1111/gbi.12237] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 03/09/2017] [Indexed: 06/07/2023]
Abstract
Ammonium- and Fe(II)-rich fluid flows, known from deep-sea hydrothermal systems, have been extensively studied in the last decades and are considered as sites with high microbial diversity and activity. Their shallow-submarine counterparts, despite their easier accessibility, have so far been under-investigated, and as a consequence, much less is known about microbial communities inhabiting these ecosystems. A field of shallow expulsion of hydrothermal fluids has been discovered at depths of 170-400 meters off the base of the Basiluzzo Islet (Aeolian Volcanic Archipelago, Southern Tyrrhenian Sea). This area consists predominantly of both actively diffusing and inactive 1-3 meters-high structures in the form of vertical pinnacles, steeples and mounds covered by a thick orange to brown crust deposits hosting rich benthic fauna. Integrated morphological, mineralogical, and geochemical analyses revealed that, above all, these crusts are formed by ferrihydrite-type Fe3+ oxyhydroxides. Two cruises in 2013 allowed us to monitor and sampled this novel ecosystem, certainly interesting in terms of shallow-water iron-rich site. The main objective of this work was to characterize the composition of extant communities of iron microbial mats in relation to the environmental setting and the observed patterns of macrofaunal colonization. We demonstrated that iron-rich deposits contain complex and stratified microbial communities with a high proportion of prokaryotes akin to ammonium- and iron-oxidizing chemoautotrophs, belonging to Thaumarchaeota, Nitrospira, and Zetaproteobacteria. Colonizers of iron-rich mounds, while composed of the common macrobenthic grazers, predators, filter-feeders, and tube-dwellers with no representatives of vent endemic fauna, differed from the surrounding populations. Thus, it is very likely that reduced electron donors (Fe2+ and NH4+ ) are important energy sources in supporting primary production in microbial mats, which form a habitat-specific trophic base of the whole Basiluzzo hydrothermal ecosystem, including macrobenthic fauna.
Collapse
Affiliation(s)
- G Bortoluzzi
- Institute for Marine Sciences, ISMAR-CNR, Bologna, Italy
| | - T Romeo
- Institute for Environmental Protection and Research, ISPRA, Milazzo, Italy
| | - V La Cono
- Institute for Coastal Marine Environment, IAMC-CNR, Messina, Italy
| | - G La Spada
- Institute for Coastal Marine Environment, IAMC-CNR, Messina, Italy
| | - F Smedile
- Institute for Coastal Marine Environment, IAMC-CNR, Messina, Italy
| | - V Esposito
- Institute for Environmental Protection and Research, ISPRA, Milazzo, Italy
| | - G Sabatino
- Department of Physics and Earth Sciences, University of Messina, Messina, Italy
| | - M Di Bella
- National Institute of Geophysics and Volcanology, Palermo, Italy
| | - S Canese
- Institute for Environmental Protection and Research, ISPRA, Milazzo, Italy
| | - G Scotti
- Institute for Environmental Protection and Research, ISPRA, Milazzo, Italy
| | - M Bo
- DISTAV, University of Genoa, Genoa, Italy
| | - L Giuliano
- Institute for Coastal Marine Environment, IAMC-CNR, Messina, Italy
| | - D Jones
- School of Environment, Natural Resources & Geography, Bangor University, Bangor, UK
| | - P N Golyshin
- School of Biological Sciences, Bangor University, Bangor, UK
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - M M Yakimov
- Institute for Coastal Marine Environment, IAMC-CNR, Messina, Italy
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - F Andaloro
- Institute for Environmental Protection and Research, ISPRA, Palermo, Italy
| |
Collapse
|
12
|
Lugato B, Stucchi S, Ciceri S, Iannone MN, Turolla EA, Giuliano L, Chinello C, Todde S, Ferraboschi P. A novel versatile precursor suitable for 18 F-radiolabeling via "click chemistry". J Labelled Comp Radiopharm 2017; 60:466-480. [PMID: 28600889 DOI: 10.1002/jlcr.3529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 06/07/2017] [Accepted: 06/07/2017] [Indexed: 11/06/2022]
Abstract
As an effort to improve 18 F-radiolabeling of biomolecules in method robustness and versatility, we report the synthesis and radiolabeling of a new azido precursor potentially useful for the so-called "click reaction," in particular the ligand-free version of the copper(I)-catalyzed alkyne-azide cycloaddition. The new azido precursor may help to overcome problems sometimes exhibited by most of the currently used analogues, as it is safe to handle and it displays long-term chemical stability, thus facilitating the development of new radiolabeling procedures. Moreover, the formed 18 F-labeled 1,2,3-triazole is potentially metabolically stable and could enhance the in vivo circulation time. The above azido precursor was successfully radiolabeled with 18 F, with 51% radiochemical yield (nondecay-corrected). As a proof of concept, the 18 F-labeled azide was then tested with a suitable alkyne functionalized aminoacid (l-propargylglycine), showing 94% of conversion, and a final radiochemical yield of 27% (>99% radiochemical purity), nondecay-corrected, with a total preparation time of 104 minutes.
Collapse
Affiliation(s)
- B Lugato
- Department of Medicine and Surgery, Tecnomed Foundation, University of Milano-Bicocca, Monza, Italy
| | - S Stucchi
- Department of Medicine and Surgery, Tecnomed Foundation, University of Milano-Bicocca, Monza, Italy
| | - S Ciceri
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milan, Italy
| | - M N Iannone
- Department of Medicine and Surgery, Tecnomed Foundation, University of Milano-Bicocca, Monza, Italy
| | - E A Turolla
- Department of Medicine and Surgery, Tecnomed Foundation, University of Milano-Bicocca, Monza, Italy
| | - L Giuliano
- Department of Medicine and Surgery, Tecnomed Foundation, University of Milano-Bicocca, Monza, Italy
| | - C Chinello
- Department of Medicine and Surgery, Mass Spectrometry Unit, University of Milano-Bicocca, Monza, Italy
| | - S Todde
- Department of Medicine and Surgery, Tecnomed Foundation, University of Milano-Bicocca, Monza, Italy
| | - P Ferraboschi
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Milan, Italy
| |
Collapse
|
13
|
Sofia V, Reggio E, Giuliano L, Fatuzzo D, Sueri C, Sciacca G, Zappia M. Long-term efficacy of pregabalin in stiff person syndrome. Eur J Neurol 2016; 23:e63-4. [DOI: 10.1111/ene.13084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 06/09/2016] [Indexed: 11/27/2022]
Affiliation(s)
- V. Sofia
- Department ‘G. F. Ingrassia’; Neurosciences Section; University of Catania; Catania Italy
| | - E. Reggio
- Department ‘G. F. Ingrassia’; Neurosciences Section; University of Catania; Catania Italy
| | - L. Giuliano
- Department ‘G. F. Ingrassia’; Neurosciences Section; University of Catania; Catania Italy
| | - D. Fatuzzo
- Department ‘G. F. Ingrassia’; Neurosciences Section; University of Catania; Catania Italy
| | - C. Sueri
- Department ‘G. F. Ingrassia’; Neurosciences Section; University of Catania; Catania Italy
| | - G. Sciacca
- Department ‘G. F. Ingrassia’; Neurosciences Section; University of Catania; Catania Italy
| | - M. Zappia
- Department ‘G. F. Ingrassia’; Neurosciences Section; University of Catania; Catania Italy
| |
Collapse
|
14
|
Giuliano L, Sofia V, Cardani R, Meola G, Zappia M. Drug resistant focal epilepsy in a patient with myotonic dystrophy type 2: casual or causal association? Neurol Sci 2016; 37:1867-1868. [PMID: 27225277 DOI: 10.1007/s10072-016-2619-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/20/2016] [Indexed: 11/25/2022]
Affiliation(s)
- L Giuliano
- Department "G. F. Ingrassia" University of Catania, Via S. Sofia 78, 95123, Catania, Italy
| | - V Sofia
- Department "G. F. Ingrassia" University of Catania, Via S. Sofia 78, 95123, Catania, Italy
| | - R Cardani
- IRCCS Policlinico San Donato, Milano, Via Morandi 30, 20097, San Donato Milanese (MI), Italy
| | - G Meola
- IRCCS Policlinico San Donato, Milano, Via Morandi 30, 20097, San Donato Milanese (MI), Italy
| | - M Zappia
- Department "G. F. Ingrassia" University of Catania, Via S. Sofia 78, 95123, Catania, Italy.
| |
Collapse
|
15
|
Crisafi F, Genovese M, Smedile F, Russo D, Catalfamo M, Yakimov M, Giuliano L, Denaro R. Bioremediation technologies for polluted seawater sampled after an oil-spill in Taranto Gulf (Italy): A comparison of biostimulation, bioaugmentation and use of a washing agent in microcosm studies. Mar Pollut Bull 2016; 106:119-126. [PMID: 26992747 DOI: 10.1016/j.marpolbul.2016.03.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 03/08/2016] [Accepted: 03/09/2016] [Indexed: 06/05/2023]
Abstract
One of the main challenges of bioremediation is to define efficient protocols having a low environmental impact. We have investigated the effect of three treatments in oily-seawater after a real oil-spill occurred in the Gulf of Taranto (Italy). Biostimulation with inorganic nutrients allowed the biodegradation of the 73±2.4% of hydrocarbons, bioaugmentation with a selected hydrocarbonoclastic consortium consisting of Alcanivorax borkumensis, Alcanivorax dieselolei, Marinobacter hydrocarbonoclasticus, Cycloclasticus sp. 78-ME and Thalassolituus oleivorans degraded 79±3.2%, while the addition of nutrients and a washing agent has allowed the degradation of the 69±2.6%. On the other hand, microbial community was severely affected by the addition of the washing agent and the same product seemed to inhibit the growth of the majority of strains composing the selected consortium at the tested concentration. The use of dispersant should be accurately evaluated also considering its effect on the principal actors of biodegradation.
Collapse
Affiliation(s)
- F Crisafi
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy
| | - M Genovese
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy
| | - F Smedile
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy
| | - D Russo
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy
| | - M Catalfamo
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy
| | - M Yakimov
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy
| | - L Giuliano
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy
| | - R Denaro
- Institute for Coastal Marine Environment CNR, Sp.ta S. Raineri 86, 98122 Messina, Italy.
| |
Collapse
|
16
|
Gentile G, Bonsignore M, Santisi S, Catalfamo M, Giuliano L, Genovese L, Yakimov MM, Denaro R, Genovese M, Cappello S. Biodegradation potentiality of psychrophilic bacterial strain Oleispira antarctica RB-8(T). Mar Pollut Bull 2016; 105:125-130. [PMID: 26912198 DOI: 10.1016/j.marpolbul.2016.02.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 01/28/2016] [Accepted: 02/15/2016] [Indexed: 06/05/2023]
Abstract
The present study is focused on assessing the growth and hydrocarbon-degrading capability of the psychrophilic strain Oleispira antarctica RB-8(T). This study considered six hydrocarbon mixtures that were tested for 22days at two different cultivation temperatures (4 and 15°C). During the incubation period, six sub-aliquots of each culture at different times were processed for total bacterial abundance and GC-FID (gas chromatography-flame ionization detection) hydrocarbon analysis. Results from DNA extraction and DAPI (4',6-diamidino-2-phenylindole) staining showed a linear increase during the first 18days of the experiment in almost all the substrates used; both techniques showed a good match, but the difference in values obtained was approximately one order of magnitude. GC-FID results revealed a substantial hydrocarbon degradation rate in almost all hydrocarbon sources and in particular at 15°C rather than 4°C (for commercial oil engine, oily waste, fuel jet, and crude oil). A more efficient degradation was observed in cultures grown with diesel and bilge water at 4°C.
Collapse
Affiliation(s)
- G Gentile
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy.
| | - M Bonsignore
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy
| | - S Santisi
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy; Ph.D School in "Biology and Cellular Biotechnology" of University of Messina, Messina, Italy
| | - M Catalfamo
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy
| | - L Giuliano
- Institute for Coastal Marine Environment (IAMC)-CNR of Napoli, Naples, Italy
| | - L Genovese
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy
| | - M M Yakimov
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy
| | - R Denaro
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy
| | - M Genovese
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy
| | - S Cappello
- Institute for Coastal Marine Environment (IAMC)-CNR of Messina, Messina, Italy
| |
Collapse
|
17
|
Sanfilippo C, Giuliano L, Fatuzzo D, Sortino G, Le Pira F, Sofia V, Zappia M. Late onset Rasmussen encephalitis: complete remission after one session of plasmapheresis. Eur J Neurol 2016; 23:e15-6. [DOI: 10.1111/ene.12903] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 10/01/2015] [Indexed: 11/28/2022]
Affiliation(s)
- C. Sanfilippo
- Department of Medical and Surgical Sciences and Advanced Technologies ‘G.F. Ingrassia’ University of Catania Catania Italy
| | - L. Giuliano
- Department of Medical and Surgical Sciences and Advanced Technologies ‘G.F. Ingrassia’ University of Catania Catania Italy
| | - D. Fatuzzo
- Department of Medical and Surgical Sciences and Advanced Technologies ‘G.F. Ingrassia’ University of Catania Catania Italy
| | - G. Sortino
- Department of Diagnostic Imaging Radiology Unit University Hospital Policlinico − Vittorio Emanuele Catania Italy
| | - F. Le Pira
- Department of Medical and Surgical Sciences and Advanced Technologies ‘G.F. Ingrassia’ University of Catania Catania Italy
| | - V. Sofia
- Department of Medical and Surgical Sciences and Advanced Technologies ‘G.F. Ingrassia’ University of Catania Catania Italy
| | - M. Zappia
- Department of Medical and Surgical Sciences and Advanced Technologies ‘G.F. Ingrassia’ University of Catania Catania Italy
| |
Collapse
|
18
|
Giliberto C, Reggio E, Sofia V, Giuliano L, Lo Fermo S, Barone R, Zappia M. Electroclinical features of a patient with GLUT1 deficiency syndrome and adult onset periodic weakness. Eur J Neurol 2016; 23:e1-3. [PMID: 26768679 DOI: 10.1111/ene.12831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 08/03/2015] [Indexed: 11/30/2022]
Affiliation(s)
- C Giliberto
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - E Reggio
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - V Sofia
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - L Giuliano
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - S Lo Fermo
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| | - R Barone
- Child Neurology and Psychiatry, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - M Zappia
- Section of Neurosciences, Department GF Ingrassia, University of Catania, Catania, Italy
| |
Collapse
|
19
|
Crisafi F, Denaro R, Yakimov M, Felice M, Giuliano L, Genovese L. NaCl concentration in the medium modulates the secretion of active EmpA protease in Vibrio anguillarum
at post-transcriptional level. J Appl Microbiol 2015; 119:1494-501. [DOI: 10.1111/jam.12957] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 08/03/2015] [Accepted: 09/01/2015] [Indexed: 01/09/2023]
Affiliation(s)
- F. Crisafi
- Institute for Coastal Marine Environment CNR; Messina Italy
| | - R. Denaro
- Institute for Coastal Marine Environment CNR; Messina Italy
| | - M. Yakimov
- Institute for Coastal Marine Environment CNR; Messina Italy
| | - M.R. Felice
- Department of Biological and Environmental Sciences; University of Messina; Messina Italy
| | - L. Giuliano
- Institute for Coastal Marine Environment CNR; Messina Italy
| | - L. Genovese
- Institute for Coastal Marine Environment CNR; Messina Italy
| |
Collapse
|
20
|
Scichilone N, Sanfilippo A, Sorino C, Giuliano L, Misseri M, Bellia V. Allergen sensitizations in southern Italy: a 5-year retrospective study in allergic respiratory patients. Eur Ann Allergy Clin Immunol 2013; 45:97-102. [PMID: 23862399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The assessment of the distribution of allergen skin test sensitizations is highly recommended for the optimal management of allergic respiratory conditions. We aimed at evaluating the distribution of allergen sensitizations in individuals with asthma and/or rhinitis in the Southern region of ltaly, and at exploring whether changes in the frequency of allergen sensitizations occurred after a 5-year period. Demographic data and skin prick test sensitizations to allergens from asthmatics and/or rhinitis attending the Division of Respiratory Diseases, University of Palermo, Italy in 2005 (Phase 1) and in 2010 (Phase 2) were extrapolated and retained for analysis. A total of 2033 allergic respiratory patients were included (1002 in Phase 1 and 1031 in Phase 2). In both investigations, the most prevalent allergen sensitization was towards Parietaria; however, a significant reduction in the rate of prevalence after 5 years was recorded (from 60% to 48% of skin test positive patients, p < 0.0001). Up to one out of two subjects showed sensitization to dust mites in both Phases. Interestingly, Cypress pollen sensitization almost doubled from Phase 1 (17%) to Phase 2 (29%; p < 0.0001). Overall, the mean number of skin test sensitizations for each patient increased from 2.7 +/- 1.6 in Phase 1 to 3.1 + 1.8 in Phase 2 (p < 0.0001). The present findings confirm the prevalent role of Parietaria sensitization in the allergic population of the Mediterranean area of Southern Italy, and document the increase of Cypress sensitization. These observations could contribute to a proper management of chronic allergic respiratory conditions in this region.
Collapse
Affiliation(s)
- N Scichilone
- Dipartimento di Biomedicina e Medicina Specialistica, Sezione di Pneumologia, University of Palermo, Palermo, Italy.
| | | | | | | | | | | |
Collapse
|
21
|
Leone A, Aquila I, Vicinanza C, Iaconetti C, Bochicchio A, Ottolenghi S, Indolfi C, Nadal-Ginard B, Ellison GM, Torella D, Mias C, Genet G, Guilbeau-Frugier C, Pathak A, Senard JM, Gales C, Egorova AD, Khedoe PSJ, Goumans MTH, Nauli SM, Ten Dijke P, Poelmann RE, Hierck BP, Miragoli M, Lab MJ, Singh A, Sikkel M, Lyon A, Gorelik J, Cheung C, Bernardo AS, Trotter MW, Pedersen RA, Sinha S, Mioulane M, Foldes G, Harding SE, Reglin B, Secomb TW, Pries AR, Buckingham M, Lescroart F, Meilhac S, Le Garrec JF, Rozmaritsa N, Christ T, Wettwer E, Knaut M, Ravens U, Tokar S, Schobesberger S, Singh A, Wright PT, Miragoli M, Lyon AR, Sikkel M, Harding SE, Gorelik J, Van Mil A, Grundmann S, Goumans MJ, Jaksani S, Doevendans PA, Sluijter JP, Tijsen AJ, Amin AS, Giudicessi JR, Tanck MW, Bezzina CR, Creemers EE, Wilde AM, Ackerman MJ, Pinto YM, Gedicke-Hornung C, Behrens-Gawlik V, Khajetoorians D, Mearini G, Reischmann S, Geertz B, Voit T, Dreyfus P, Eschenhagen T, Carrier L, Duerr GD, Heinemann JC, Wenzel D, Ghanem A, Alferink JC, Zimmer A, Lutz B, Welz A, Fleischmann BK, Dewald O, Sbroggio' M, Bertero A, Giuliano L, Brancaccio M, Tarone G, Meiser M, Kohlhaas M, Chen Y, Csordas G, Dorn G, Maack C, Stapel B, Hoch M, Haghikia A, Fischer P, Maack C, Hilfiker-Kleiner D, Schroen B, Corsten M, Verhesen W, De Windt L, Pinto YM, Zacchigna S, Thum T, Carmeliet P, Papageorgiou A, Heymans S, Lunde IG, Finsen AV, Florholmen G, Skrbic B, Kvaloy H, Jarstadmarken HO, Sjaastad I, Tonnessen T, Carlson CR, Christensen G, Paavola J, Schliffke S, Rossetti S, Kuo I, Yuan S, Sun Z, Harris P, Torres V, Ehrlich B, Robinson P, Adams K, Zhang YH, Casadei B, Watkins H, Redwood C, Seneviratne AN, Cole JE, Goddard ME, Mohri Z, Cross AJ, Krams R, Monaco C, Everaert BR, Van Laere SJ, Hoymans VY, Timmermans JP, Vrints CJ. Oral abstract presentations & Young Investigators Competition. Cardiovasc Res 2012. [DOI: 10.1093/cvr/cvr333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
22
|
Marchiani S, Tamburrino L, Giuliano L, Nosi D, Sarli V, Gandini L, Piomboni P, Belmonte G, Forti G, Baldi E, Muratori M. Sumo1-ylation of human spermatozoa and its relationship with semen quality. ACTA ACUST UNITED AC 2010; 34:581-93. [DOI: 10.1111/j.1365-2605.2010.01118.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
23
|
Abstract
The low percentage of living bacteria commonly obtained when comparing viable counts with total direct counts in seawater could be due more to inappropriate techniques for appreciating the growth ability of living cells than to unadapted culture conditions. The most-probable-number counts in filtered seawater cultures and the microscopic counts of 4(prm1),6-diamidino-2-phenylindole (DAPI)-stained aggregate-forming units grown on black polycarbonate filters appeared significantly correlated to the direct counts. Both these techniques show that in the superficial and intermediate water masses, the living cells may constitute an important (frequently higher than 20%) but highly variable part of the total populations. These viable counts appear more realistic than the conventional CFU counts, which provide only 0.001 to 0.2% of the total counts.
Collapse
|
24
|
Munarin F, Giuliano L, Bozzini S, Tanzi M, Petrini P. Mineral phase deposition on pectin microspheres. Materials Science and Engineering: C 2010. [DOI: 10.1016/j.msec.2010.01.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
25
|
Genovese M, Denaro R, Cappello S, Di Marco G, La Spada G, Giuliano L, Genovese L, Yakimov M. Bioremediation of benzene, toluene, ethylbenzene, xylenes-contaminated soil: a biopile pilot experiment. J Appl Microbiol 2008; 105:1694-702. [DOI: 10.1111/j.1365-2672.2008.03897.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
26
|
Cappello S, Caruso G, Zampino D, Monticelli LS, Maimone G, Denaro R, Tripodo B, Troussellier M, Yakimov M, Giuliano L. Microbial community dynamics during assays of harbour oil spill bioremediation: a microscale simulation study. J Appl Microbiol 2007; 102:184-94. [PMID: 17184334 DOI: 10.1111/j.1365-2672.2006.03071.x] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS Microcosm experiments simulating an oil spill event were performed to evaluate the response of the natural microbial community structure of Messina harbour seawater following the accidental load of petroleum. METHODS AND RESULTS An experimental harbour seawater microcosm, supplemented with nutrients and crude oil, was monitored above 15 days in comparison with unpolluted ones (control microcosms). Bacterial cells were counted with a Live/Dead BacLight viability kit; leucine aminopeptidase, beta-glucosidase, alkaline phosphatase, lipase and esterase enzymes were measured using fluorogenic substrates. The microbial community dynamic was monitored by isolation of total RNA, RT-PCR amplification of 16S rRNA, cloning and sequencing. Oil addition stimulated an increase of the total bacterial abundance, leucine aminopeptidase and phosphatase activity rates, as well as a change in the community structure. This suggested a prompt response of micro-organisms to the load of petroleum hydrocarbons. CONCLUSIONS The present study on the viability, specific composition and metabolic characteristics of the microbial community allows a more precise assessment of oil pollution. Both structural and functional parameters offer interesting perspectives as indicators to monitor changes caused by petroleum hydrocarbons. SIGNIFICANCE AND IMPACT OF THE STUDY A better knowledge of microbial structural successions at oil-polluted sites is essential for environmental bioremediation. Data obtained in microcosm studies improve our understanding of natural processes occurring during oil spills.
Collapse
Affiliation(s)
- S Cappello
- Istituto per l'Ambiente Marino Costiero (IAMC) IST-CNR Section of Messina, Messina, Italy.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Giuliano L, Coutinho M, Freitas S, Pires M, Zunino J, Ribeiro R, Vieira C, Caramelli B. Mo-P1:79 HDL-cholesterol (HDL-C) in children from a sample of the South of Brazil - Floripa Saudavel 2040 study. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80214-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
28
|
Denaro R, D'Auria G, Di Marco G, Genovese M, Troussellier M, Yakimov MM, Giuliano L. Assessing terminal restriction fragment length polymorphism suitability for the description of bacterial community structure and dynamics in hydrocarbon-polluted marine environments. Environ Microbiol 2005; 7:78-87. [PMID: 15643938 DOI: 10.1111/j.1462-2920.2004.00685.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The distribution of bacterial communities terminal restriction fragment length polymorphism (T-RFLP) fingerprint patterns was evaluated at three proximal hydrocarbon-contaminated sites located within the harbour of Messina. In order to analyse the short-term variability of the individual terminal restriction fragment (T-RF) patterns, water samples were collected at the three sites on three occasions within 3 months (T(0), T(90) and T(91)). Four sample sizes, from 50 to 1000 ml for each collected sample, were analysed separately (36 total analysed samples) to evaluate the relationship between the sample size and the bacterial diversity estimates. The dominant T-RF groups mostly belonged to signatures of putative hydrocarbon-degrading bacteria, as revealed by the virtual analysis of the obtained bands. In order to test whether significant differences were occurring between the analysed samples, the Kruskal-Wallis non-parametric test was applied to the T-RF data set. Neither significant influence of the sample size nor short spatial variability within the three sampled sites was detected for each sampling time. On the contrary, significant temporal changes in the diversity of the bacterial communities were observed. These results were confirmed by the non-metric multidimensional scales (nMDS) analysis of the whole set of samples, which indicated three main groups corresponding to the three different sampling times. In summary, the T-RFLP technique, although a polymerase chain reaction-based method, proved to be a suitable technique for monitoring polluted marine environments, typically characterized by low diversity and high relative abundances of a few dominant groups.
Collapse
Affiliation(s)
- R Denaro
- Istituto per l'Ambiente Marino Costiero (IAMC), sezione di Messina, Consiglio Nazionale delle Ricerche (CNR), Spianata S. Raineri 86, 98122 Messina, Italy.
| | | | | | | | | | | | | |
Collapse
|
29
|
Fenaroli P, Merson M, Giuliano L, Bonasegale A, Virotta G, Pericotti S, Valentini M, Poletti P, Labianca R, Personeni A, Tondini C. Population-based sentinel lymph node biopsy in early invasive breast cancer. Eur J Surg Oncol 2004; 30:618-23. [PMID: 15256234 DOI: 10.1016/j.ejso.2004.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2004] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION Sentinel lymph node biopsy (SLNB) has been proposed as a reliable method for staging of early invasive breast cancer (EIBC). In the present study we analyse the impact of this procedure when systematically applied to all unselected women of a community-based Breast Cancer Unit (BCU). METHODS All consecutive women with unifocal cT1-2 (<or=3 cm) cN0 EIBC diagnosed at our BCU were considered for radiocolloid sentinel node localisation and biopsy. RESULTS Only 387 of all consecutive 542 patients met eligibility criteria for SLNB. Reasons for ineligibility included tumour size, palpable axillary nodes, plurifocality and/or multicentricity, and refusal to undergo the procedure. Successful SLNB was performed in 362 patients (94% of those eligible), but in 108 of these axillary dissection (AD) had to be performed anyway, mainly because of SLN-positivity. Therefore, SLNB ultimately allowed sparing axillary dissection in 256 patients out of the entire population of women with EIBC. CONCLUSIONS Radiocolloid-guided SLNB, when appropriately applied in the context of a population-based service, can help in sparing unnecessary AD, with its related costs and morbidity, in approximately half of all women presenting with EIBC. In absolute terms, in the EU this could result in approximately 100,000 unnecessary AD avoided each year.
Collapse
Affiliation(s)
- P Fenaroli
- Breast Cancer Unit, Surgical Department, Ospedali Riuniti, Bergamo, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Luna GM, Dell'Anno A, Giuliano L, Danovaro R. Bacterial diversity in deep Mediterranean sediments: relationship with the active bacterial fraction and substrate availability. Environ Microbiol 2004; 6:745-53. [PMID: 15186353 DOI: 10.1111/j.1462-2920.2004.00611.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We investigated vertical distribution and depth-related patterns (from 670 to 2,570 metres) of bacterial diversity in sediment samples collected along a transect in the warm deep Mediterranean sea. Analyses of bacterial diversity were compared with the abundance of benthic bacteria, their metabolically active fraction and the substrates potentially available for their growth. The number of active bacteria was dependent upon the availability of organic substrate in the sediment deriving from phytopigment inputs from the photic layer. The T-RFLP analysis revealed that the surface layers of all sediments analysed were dominated by the same ribotypes, but clear shifts in bacterial community structure were observed in deeper sediment layers. High values of bacterial diversity (expressed as D, H') and evenness (as J) were observed at all stations (a total of 61 ribotypes was identified), and as a result of the large fraction of rare ribotypes (c. 35%), the overall bacterial diversity in the deep sea region investigated was among the highest reported so far in literature. Biodiversity parameters did not display any relationship with water depth, but ribotype richness was related with the number and percentage of active bacteria, suggesting a coupling between organic inputs stimulating bacterial growth and deep-sea bacterial diversity.
Collapse
Affiliation(s)
- G M Luna
- Department of Marine Sciences, Marine Biology Section, Faculty of Science, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | | | | | | |
Collapse
|
31
|
Fenaroli P, Giuliano L, Guerra U, Candiago E, Valentini M, Belfiglio M, Bettini A, Labianca R, Guzzetti R, Tondini C. Breast cancer units can significantly improve surgical management of early invasive breast cancer. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)90967-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
32
|
Gentile G, Bonasera V, Amico C, Giuliano L, Yakimov MM. Shewanella sp. GA-22, a psychrophilic hydrocarbonoclastic antarctic bacterium producing polyunsaturated fatty acids. J Appl Microbiol 2003; 95:1124-33. [PMID: 14633042 DOI: 10.1046/j.1365-2672.2003.02077.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIMS The effects of different growth media and temperature on production of polyunsaturated fatty acids (PUFA) by Shewanella sp. GA-22 were investigated. The attempts to characterize the GA-22 genes, homologous to those of PUFA biosynthesis gene cluster, was performed. METHODS AND RESULTS Physiological and phylogenetic characterization of new Antarctic isolate GA-22 was performed. Total fatty acids were isolated from the cells growing under different conditions and analysed by gas chromatography-mass spectrometry (GC-MS). Using degenerated primers derived from the conserved regions within PUFA fatty acid synthase operons, five fragments of homological genes were amplified from GA-22 DNA, and two of them corresponding to pfaA and pfaC synthase subunits were sequenced. CONCLUSIONS Strain GA-22 was shown to be able to produce three different PUFA: linoleic, arachidonic and eicosapentaenoic acids. The PUFA production was temperature- and carbon source-dependent. The deduced gene products exhibited high similarity to corresponding fatty acid synthases PfaA and PfaC. SIGNIFICANCE AND IMPACT OF STUDY The PUFA production was detected on media supplemented with crude oil, gasoline and n-tetradecane. The apparent conservation of PUFA genes may point to the potential utilization of designed primers as functional markers in culture-independent ecological studies, and for initial screening in biotechnological fields.
Collapse
Affiliation(s)
- G Gentile
- Istituto per l'Ambiente Marino Costiero, CNR Messina, Italy
| | | | | | | | | |
Collapse
|
33
|
Yakimov MM, Giuliano L, Chernikova TN, Gentile G, Abraham WR, Lünsdorf H, Timmis KN, Golyshin PN. Alcalilimnicola halodurans gen. nov., sp. nov., an alkaliphilic, moderately halophilic and extremely halotolerant bacterium, isolated from sediments of soda-depositing Lake Natron, East Africa Rift Valley. Int J Syst Evol Microbiol 2001; 51:2133-2143. [PMID: 11760957 DOI: 10.1099/00207713-51-6-2133] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An alkaliphilic, halotolerant, Gram-negative, heterotrophic, aerobic and rod-shaped organism was isolated from drying soda and at a water-covered site of Lake Natron, Tanzania, by means of the most-probable-number technique developed for anoxygenic, phototrophic sulfur bacteria. It had an absolute requirement for alkalinity, but not for salinity; growth occurred at salt concentrations of 0-28% (w/v), with optimal growth at 3-8% (w/v) NaCl. The bacterium preferentially metabolized volatile fatty acids and required vitamins for growth. The name Alcalilimnicola halodurans gen. nov., sp. nov. is proposed for the novel isolate, placed in the gamma-Proteobacteria within the family Ectothiorhodospiraceae on the basis of analysis of the 16S rDNA sequence, polar lipids, fatty acids and DNA base composition. Although Alcalilimnicola halodurans is closely related to the extreme anoxygenic, phototrophic sulfur bacteria of the genus Halorhodospira, it is not phototrophic.
Collapse
|
34
|
Yakimov MM, Giuliano L, Timmis KN, Golyshin PN. Upstream-independent ribosomal RNA amplification analysis (URA): a new approach to characterizing the diversity of natural microbial communities. Environ Microbiol 2001; 3:662-6. [PMID: 11722547 DOI: 10.1046/j.1462-2920.2001.00232.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Here, we propose an advanced method for recently developed fingerprinting strategies to analyse microbial populations by direct detection of 16S rRNA sequences occurring in natural habitats. The differential display (DD) technique, which is widely used to analyse for eukaryotic gene expression, was optimized to assess bacterial rRNA diversity in environmental samples. Double-stranded cDNAs of rRNAs were synthesized without a forward primer digested with endonuclease and ligated with a double-stranded adapter. The fragments obtained were then amplified using an adapter-specific extended primer and a 16S rDNA universal reverse primer pair displayed by electrophoresis on a polyacrylamide gel. We validated this approach by characterization of a microbial community colonizing a geothermal (48 degrees C) vent system located close to the eruption zone of the south-east crater of the Mount Etna volcano, Sicily. Analysis of the patterns of abundant 16S rRNA revealed a considerable diversity of metabolically active bacteria phylogenetically clustering within the Crenarchaeota, Cyanobacteria, Firmicutes, Planctomycetales and Thermus divisions. Two sequence phylotypes were affiliated with uncultivated representatives of the recently described candidate division OP10 from a Yellowstone hot spring.
Collapse
Affiliation(s)
- M M Yakimov
- Istituto Sperimentale Talassografico, CNR, Spianata San Raineri 86, 98122 Messina, Italy.
| | | | | | | |
Collapse
|
35
|
Fiore CE, Pennisi P, Tandurella FG, Amato R, Giuliano L, Amico A, Sciacchitano GS, Caschetto S. Response of biochemical markers of bone turnover to estrogen treatment in post-menopausal women: evidence against an early anabolic effect on bone formation. J Endocrinol Invest 2001; 24:423-9. [PMID: 11434666 DOI: 10.1007/bf03351042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Bone loss following menopause can be prevented or reduced by estrogen replacement therapy (ERT). The primary action of estrogen on bone is generally considered to be antiresorptive, but some evidence would also suggest a stimulatory effect on bone formation. The aim of this study was to assess the effect of ERT on biochemical markers of bone resorption (urinary pyridinoline and deoxypyridinoline), and of bone formation (bone-specific alkaline phosphatase--B-ALP, and the C-terminal propeptide of type I collagen--CICP) in a group of 25 postmenopausal women with no evidence of osteoporosis. Since the suggested anabolic effect of estrogen seems to take place in the early period of ERT, we measured the response of markers immediately before and after the start of treatment (30, 60, 120 and 180 days). The markers of bone resorption started to decrease at 30 days and remained low thereafter. We also observed a similar decrease in serum levels of B-ALP and CICP, reflecting a reduction of bone formation rate. Our data would indicate that ERT at the given dose does not have early anabolic effects on bone, in addition to its recognized suppressive effect on bone resorption.
Collapse
Affiliation(s)
- C E Fiore
- Department of Internal Medicine, School of Medicine, University of Catania, Italy
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Martelli A, Robbiano L, Cosso M, Perrone C, Tagliazucchi A, Giuliano L, Aresca GF, Brambilla G. Comparison of micronuclei frequencies in mono-, bi- and poly-nucleated lymphocytes from subjects of a residential suburb and subjects living near a metallurgical plant. Mutat Res 2000; 470:211-9. [PMID: 11027976 DOI: 10.1016/s1383-5718(00)00108-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Spontaneous baseline frequencies of micronuclei in mono-, bi- and poly-nucleated lymphocytes were analyzed, using the cytokinesis-block technique, in 103 subjects living in a residential suburb (Genova-Nervi), and in 203 subjects living in an urban industrialized area near a metallurgical plant and a coke factory (Genova-Cornigliano). Statistical analysis showed that the average frequency of micronucleated binucleated lymphocytes (MnBNL) was significantly higher (1.42-fold) in donors of Nervi than in donors of Cornigliano living in a contaminated environment. In contrast, the average frequency of micronucleated polynucleated lymphocytes (MnPNL) was significantly higher (1.66-fold) in donors of Cornigliano than in donors of Nervi. The existence in the whole population examined of a positive correlation between frequency of MnBNL and frequency of MnPNL and the absence of a positive correlation between frequency of bi- and poly-nucleated lymphocytes and frequency of MnPNL suggest that the formation of MnPNL is a consequence of genetic damage and not of mitotic errors arising during the division of bi- and poly-nucleated cells. In agreement with previous findings the frequency of MnBNL increased with age and was significantly higher in females than in males; unexpectedly it was higher in non-smokers/non-drinkers than in smokers/drinkers.
Collapse
Affiliation(s)
- A Martelli
- Department of Internal Medicine, Division of Clinical Pharmacology and Toxicology, University of Genoa, Viale Benedetto XV 2, I-16132, Genoa, Italy
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Mangiafico RA, Messina R, Attinà T, Dell'Arte S, Giuliano L, Malatino LS. Impact of a 4-week treatment with prostaglandin E1 on health-related quality of life of patients with intermittent claudication. Angiology 2000; 51:441-9. [PMID: 10870853 DOI: 10.1177/000331970005100601] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Intermittent claudication impairs functional status and quality of life in many patients by limiting walking capacity. The aim of this study was to evaluate the effects of a 4-week treatment with prostaglandin E1 (PGE1), a drug inducing vasodilation and inhibiting platelet aggregation, on improving functional status and health-related quality of life in patients with disabling intermittent claudication. Forty-two untrained outpatients (37 men and five women, mean age 64 +/- 8 years) with intermittent claudication,and maximum walking distance (MWD) of at least 50 and no more than 200 m on treadmill test (5% slope, 3 km/hr) were randomized to 4 weeks of double-blind treatment either with 60 mcg PGE1 daily given IV in 250 mL saline over a period of 2 hours (21 patients) or placebo (250 mL saline, 21 patients). Treatment-free follow-up was completed 8 weeks after the final infusion. Pain free walking distance (PFWD), MWD, and questionnaire evaluation were determined at baseline, after the 4-week treatment period, and at the end of the 8 weeks of the treatment-free follow-up period. After 4 weeks of treatment with PGE1 PFWD and MWD increased from 72 +/- 16 m to 135 +/- 33 m (+87%, p<0.001)and from 140 +/- 30 m to 266 +/- 62 m (+90%, p<0.001), respectively. Analysis of the Walking Impairment Questionnaire responses in the PGE1 group at 4 weeks demonstrated significant improvements in the walking impairment score (+19 percentage points, p<0.001), in the distance score (+25 percentage points, p<0.001), in the speed score (+24 percentage points, p<0.001), in the stair climbing score (+20 percentage points, p<0.001). The RAND survey responses showed improvements in physical function and bodily pain scores (+14 percentage points, p<0.001, and +15 percentage points, p<0.01, respectively). After the treatment-free follow-up period of 8 weeks, increases in PFWD and MWD were maintained (113 +/- 26 m, +57%, p<0.001, and 229 +/- 55 m, +63%, p<0.001, respectively). Similarly, at the end of the treatment-free follow-up, the walking impairment score (+16 percentage points, p<0.001), the distance score (+23 percentage points, p<0.001), the speed score (+22 percentage points, p<0.001), the stair climbing score (+18 percentage points, p<0.001) as well as the RAND physical function and bodily pain scores (+10 percentage points, p<0.001, and +13 percentage points, p<0.01, respectively) were still increased compared with baseline. No change from baseline was found in all the target parameters in the placebo group after 4 weeks of treatment and at the end of the treatment-free follow-up period. These data show that a 4-week treatment with PGE1 improves functional status and quality of life as well as treadmill performance in patients with disabling intermittent claudication as compared with placebo-treated patients. The improvements are also maintained for a period of 8 weeks beyond the end of the treatment. Additional studies are needed to determine the duration of functional benefits after the end of treatment.
Collapse
Affiliation(s)
- R A Mangiafico
- Institute of Internal Medicine L. Condorelli, University of Catania, Italy
| | | | | | | | | | | |
Collapse
|
38
|
Yakimov MM, Giuliano L, Timmis KN, Golyshin PN. Recombinant acylheptapeptide lichenysin: high level of production by Bacillus subtilis cells. J Mol Microbiol Biotechnol 2000; 2:217-24. [PMID: 10939247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
Peptide synthetases are multi-domain proteins that catalyze the assembly, from amino acids and amino acid derivatives, of peptides and lipopeptides, some of which exhibit activities (pharmaceutical, surfactant, etc.) of considerable biotechnological importance. Although there is substantial interest in the generation of greater peptide diversity, in order to create new biotechnologically interesting products, attempts reported so far to exchange amino acid-activating minimal modules between enzymes have only yielded hybrid catalysts with poor activities. We report here the replacement of an entire first, L-Glu-, and fifth, L-Asp-incorporating modules of surfactin synthetase, to create a fully active hybrid enzyme that forms a novel peptide in high yields. Whole encoding regions of lichenysin A synthetase modules were introduced into surfactin biosynthesis operon between His140/His1185 of SrfAA and His1183/His2226 of SrfAB, the amino acid residues of a proposed active-site motif (HHXXXDG) of the condensation domains which is involved in the catalysis of nonribosomal peptide bond formation (Stachelhaus et al., 1998). When the lipopeptides produced by the recombinant Bacillus subtilis strains were purified and characterized, they appeared to be expressed approximately at the same level of the wild type surfactin and to be identical by their fatty acid profiles. We thereby demonstrate the utility of whole module swapping for designing novel peptides, for creating peptide diversity, and for redesigning existing peptides produced in performant production strains in high yields to correspond to desired peptides produced in low yields, or from strains unsuitable for production purposes.
Collapse
Affiliation(s)
- M M Yakimov
- Department of Microbiology, GBF National Research Center for Biotechnology, Braunschweig, Germany.
| | | | | | | |
Collapse
|
39
|
Golyshin PM, Fredrickson HL, Giuliano L, Rothmel R, Timmis KN, Yakimov MM. Effect of novel biosurfactants on biodegradation of polychlorinated biphenyls by pure and mixed bacterial cultures. New Microbiol 1999; 22:257-67. [PMID: 10423745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
A study was conducted to determine the potential positive effect of novel biosurfactants on the enhancement of Aroclor 1248 metabolization in both in vitro and in situ experiments. Among two lipopeptides tested the highest activity was found in experiments with a hydrolytically opened form of lichenysin A. Lichenysin A itself did not enhance the degradation activity of chosen microorganism-degraders and in most cases inhibited their PCB mineralization rates. Glucolipid surfactant from marine bacterium Alcanivorax borkumensis showed in several tests a strong enhancing effect on microbial metabolization of Aroclor 1248 congeners. Biosurfactants appeared to act very specifically, i.e. depending on strain and concentration used. Experiments set up with soil samples did not give a clear answer whether bioemulsifiers applied at low concentration could sufficiently increase the rates of biodegradation in situ. Only A. borkumiensis glucose lipid caused the most marked enhancement of Aroclor 1248 metabolization in soil microcosm. We suggest that taking into account the specificity of surface- and biological activities of various biosurfactants they may promote the mineralization of sorbed PCBs in polluted soils, when the optimized biosurfactant-degrader combination is used.
Collapse
Affiliation(s)
- P M Golyshin
- Department of Microbiology, GBF National Research Center for Biotechnology, Braunschweig, Germany
| | | | | | | | | | | |
Collapse
|
40
|
Yakimov MM, Giuliano L, Bruni V, Scarfì S, Golyshin PN. Characterization of antarctic hydrocarbon-degrading bacteria capable of producing bioemulsifiers. New Microbiol 1999; 22:249-56. [PMID: 10423744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
During screening for biosurfactant-producing, n-alkane-degrading marine bacteria, two heterotrophic bacterial strains were isolated from enriched mixed cultures, obtained from Terra Nova Bay (Ross sea, Antarctica) by using aliphatic and artomatic hydrocarbons as the principal carbon source. These gram-positive, aerobic, cocci-shaped bacteria use a various number of organic compounds, including aliphatic hydrocarbons, volatile fatty acids, and biphenyl. During cultivation on n-alkanes as sole source of carbon and energy, all strains produced both an extracellular and cell-bound surface-active mixture of trehalose lipids which reduced the surface tension of water from 72 mN/m to 32mN/m. This class of glycolipids was found to be produced only by marine rhodococci. The 16S-rRNA gene sequence analysis showed that both strains are members of the G + C rich gram-positive group of the phylum Proteobacteria and was found to be almost identical to that of Rhodococcus fascians DSM 20669. The potential of these strains for in situ bioremediation of contaminated cold marine environment is discussed in the present study.
Collapse
Affiliation(s)
- M M Yakimov
- Department of Microbiology, GBF National Research Center for Biotechnology
| | | | | | | | | |
Collapse
|
41
|
Giuliano L, Furci P, De Domenico M, Bruni V, Salomone L, Alonzo V. Variability of some microbial parameters in relation to the hydrological features of the water column in the Eolian Basin (Southern Tyrrhenian Sea). New Microbiol 1999; 22:139-50. [PMID: 10322613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
During the EOCUMM '94 cruise, 15 stations located in the Eolian Islands area (Southern Tyrrhenian Sea) were sampled to analyse the distributions of the total bacterioplankton densities and the heterotrophic viable bacteria counts on Marine Agar 2216. According to the TS (temperature-salinity) diagrams, obtained by processing the CTD (conductivity-temperature-depth) vertical profiles, the sampled stations were grouped in "hydrological clusters". The bacteriological variables, together with the chlorophyll a and the particulate organic carbon measures obtained during the same cruise were used to compare the stations of the same and different clusters. The results indicated that variabilities of the analysed microbial parameters were not obviously related to the hydrographic features of the sampling stations. This work is an attempt to verify the possibility of using microbial parameters to characterize the structure of the water column.
Collapse
Affiliation(s)
- L Giuliano
- Dipartimento di Biologia Animale ed Ecologia Marina, Università di Messina, Italy
| | | | | | | | | | | |
Collapse
|
42
|
Giuliano L, Höfle MG, Yakimov MM. Identification of Culturable Oligotrophic Bacteria within Naturally Occurring Bacterioplankton Communities of the Ligurian Sea by 16S rRNA Sequencing and Probing. Microb Ecol 1999; 37:77-85. [PMID: 9929396 DOI: 10.1007/s002489900132] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
> Abstract Typical marine bacteria (i.e., obligately oligotrophic) that were numerically dominant members of naturally occurring marine communities were identified by cloning and sequencing the amplified 16S rRNA genes obtained from dilution cultures of the original samples. The data reported here refer to two different habitats of a marine pelagic environment (28 miles offshore, in the northwestern Mediterranean Sea). The samples were taken from the water column at two representative layers, i.e., the 30-m depth, corresponding to the chlorophyll maximum layer, and the 1800-m depth, representative of a deep, oligotrophic environment. Three major lineages were found in the 16S rDNA clone libraries prepared from the two samples, two of which could be assigned to the Vibrio and the Rhodobacter groups. The third lineage was a distant relative of the genus Flavobacterium, but it was not closely related to any marine isolate. Six oligonucleotide probes, either complementary to the conserved sequence domains or selectively hybridizing to the clone sequences, were designed for use as hybridization group-specific and strain-specific probes. A single-mismatch discrimination between certain probes and nontarget sequences was demonstrated by detecting the probes' specificity at different hybridization and washing conditions. The screening of the clone libraries with the obtained probes revealed that neither the 30-m sample higher dilution nor the 1800-m one were pure cultures. While some representatives of the Vibrio group were found in both the surface and the deep sample, the members of the Flavobacterium and Rhodobacter lineages were detected only in the deep and the euphotic layers, respectively. We suggest an approach for analyzing autochthonous marine bacteria able to grow in unamended seawater.
Collapse
Affiliation(s)
- L Giuliano
- Dipartimento di Biologia Animale ed Ecologia Marina, Universitá di Messina, Salita Sperone, 31, 98166 Messina, Italy
| | | | | |
Collapse
|
43
|
Yakimov MM, Kröger A, Slepak TN, Giuliano L, Timmis KN, Golyshin PN. A putative lichenysin A synthetase operon in Bacillus licheniformis: initial characterization. Biochim Biophys Acta 1998; 1399:141-53. [PMID: 9765590 DOI: 10.1016/s0167-4781(98)00096-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Certain Bacillus licheniformis strains isolated from oil wells have been shown to produce a very effective biosurfactant, lichenysin A, which is structurally similar to another less active lipopeptide, surfactin. Surfactin, like many small peptides in prokaryotes and lower eukaryotes, is synthesized non-ribosomally by multi-enzyme peptide synthetase complex. Analysis of several peptide synthetases of bacterial and fungal origin has revealed a high degree of sequence conservation. Two 35-mer oligonucleotides derived from highly conserved motifs ('core I' and 'core II') of surfactin synthetase were used to identify the cloned putative operon of lichenysin A synthetase lchA from B. licheniformis BNP29, a strain not amenable to genetic manipulation in a BAC system (F-plasmid-based bacterial artificial chromosome) based on Escherichia coli and its single-copy plasmid F-factor. A 32.4 kb fragment containing lichenysin A biosynthesis locus was sequenced and analysed. The structural architecture of putative lichenysin A synthetase protein containing seven amino acid (aa) activation-thiolation, two epimerization and one thioesterase domains is discussed in terms of its similarity to surfactin and other peptide synthetases. The 100 aa peptide chain situated between the highly conserved signature sequences FDXX and NXYGPTE(IV)X within amino acid binding domains of peptide synthetases is proposed to be a minimal block dictating the substrate specificity of the enzymes. A new operon-type structure has been localized directly upstream from the lichenysin A synthetase genes which, on the basis of sequence determination, potentially encode a four-member ABC-type transport system involved in product secretion.
Collapse
Affiliation(s)
- M M Yakimov
- Department of Microbiology, GBF National Research Centre for Biotechnology, Braunschweig, Germany.
| | | | | | | | | | | |
Collapse
|
44
|
Sacco R, Giovanelli A, Giuliano L, Piazzalunga D, Poletti EM, Arrigoni F, Cassinelli GB. [Epidemiological behavior of perforated peptic ulcer before and after the introduction of the antisecretory drug therapy. Our experience]. MINERVA CHIR 1995; 50:871-8. [PMID: 8684634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The diagnostic iter and treatment of peptic ulcer have evolved considerably over the past 20 years. The capillary spread of endoscopy has permitted secure and precise diagnoses to be made, in terms of both the site and size of the anatomic lesion, on the one hand, and on the other, the introduction of antisecretory drugs has led to the resolution of the majority of ulcers, so much so that the ulcer is no longer managed using strictly surgical methods but is now treated medically and only emergency cases, such as perforations, undergo surgery. Complications, such as digestive hemorrhage, penetration and stenosis, may lead to the need for surgery. In particular, perforation seems to be the only complication which has not been significantly influenced by the introduction of antisecretory therapy, the point that its status as a "complication" has been questioned leading to the suspicion of its nosological autonomy. The authors review the series of ulcer patients admitted to hospital during the period 1968 to 1991, paying special attention to the correlation with the use of antisecretory drugs which were introduced during the period 1978-1981, the trend of ulcer complications over the entire period, the duration of symptoms and the epidemiology of peptic and perforated ulcers.
Collapse
Affiliation(s)
- R Sacco
- II Divisione di Chirurgia Generale, Ospedali Riuniti, Bergamo
| | | | | | | | | | | | | |
Collapse
|
45
|
Re G, Dalmasso di Garzegna A, Valerio M, Giuliano L, Mattioda F, Re F, Careglio A. [Correlation of acid-base balance of the saliva, oral hygiene and state of dentition in smoking and non-smoking patients]. Minerva Stomatol 1988; 37:431-4. [PMID: 3173309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
46
|
Giuliano L, Loche A, Ottonello M. [Evaluation of the protective activity of phosphatidylcholine in comparing lipid peroxidation processes]. Boll Soc Ital Biol Sper 1987; 63:481-7. [PMID: 3651252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
47
|
Martelli A, Robbiano L, Ghia M, Giuliano L, Angelini G, Brambilla G. A study of the potential genotoxicity of cimetidine using human hepatocyte primary cultures: discrepancy from results obtained in rat hepatocytes. Cancer Lett 1986; 30:11-6. [PMID: 3943077 DOI: 10.1016/0304-3835(86)90126-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The genotoxicity of cimetidine, a drug widely used in the treatment of peptic ulcer, was examined in human hepatocyte primary cultures. No induction of unscheduled DNA synthesis, as detected by autoradiography, or of DNA fragmentation, as measured by alkaline elution, was seen in metabolically competent human hepatocytes exposed for 20 h to cimetidine concentrations ranging from 0.33 to 9 mM. These findings, which are in contrast with the previously observed capability of cimetidine to induce DNA damage and repair in rat hepatocyte primary cultures, suggest that for some chemicals the rat hepatocyte model might be an inappropriate predictor of potential genotoxic effects in the analogous human cells.
Collapse
|
48
|
Martelli A, Robbiano L, Giuliano L, Pino A, Angelini G, Brambilla G. DNA fragmentation by N-nitrosodimethylamine and methyl methanesulfonate in human hepatocyte primary cultures. Mutat Res 1985; 144:209-11. [PMID: 4058441 DOI: 10.1016/0165-7992(85)90142-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The ability of N-nitrosodimethylamine (DMN) and methyl methanesulfonate (MMS) to induce DNA damage in primary cultures of human hepatocytes was examined by the alkaline elution technique. Both the agents induced a dose-dependent increase in DNA elution rate, but appreciable differences in the degree of response to the procarcinogen DMN were observed among cultures obtained from the livers of four patients. A comparative analysis of DNA fragmentation indicated a substantial similarity between human and concurrently studied rat hepatocytes in their response to both DMN and MMS.
Collapse
|
49
|
Giuliano L, Saracini A, Bertolotto C. [Odontological problems in patients with hemophilia]. Ann Osp Maria Vittoria Torino 1984; 27:145-58. [PMID: 6443703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|