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Foti A, Ware R, Tiddens H, Sly P, Stick S. 577: Outcomes from COMBAT CF: A phase 3 multicenter, randomized, placebo-controlled trial of azithromycin in primary prevention of radiologically defined bronchiectasis in infants with cystic fibrosis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02000-2] [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] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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2
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Paolino G, Sernicola A, Di Nicola MR, Foti A, Brianti P, Vaira F, Grieco T, Mercuri SR. Successful use of dupilumab for the treatment of atopic dermatitis on the genitals, a neglected anatomical site. Clin Exp Dermatol 2021; 47:176-178. [PMID: 34398987 DOI: 10.1111/ced.14894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2021] [Indexed: 12/01/2022]
Abstract
Atopic dermatitis (AD) is a chronic inflammatory disease that may involve any cutaneous site; involvement of the genital area may greatly impair patients' quality of life but, as the inspection of genitals is not usually conducted during the routine physical examination of patients with AD, the genital presentation of AD is frequently neglected and under-reported. We decided to evaluate the incidence of genital AD in patients with moderate-severe AD and the relative response to anti-interleukin (IL)-4/IL-13 dupilumab. In our study, a high incidence of genital AD emerged but the use of dupilumab allowed a generalized improvement.
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Affiliation(s)
- G Paolino
- Dermatology Unit, IRCCS San Raffaele Hospital, Milan, Italy
| | - A Sernicola
- Dermatology Clinic, Sapienza University of Rome, Rome, Italy
| | - M R Di Nicola
- Dermatology Unit, IRCCS San Raffaele Hospital, Milan, Italy
| | - A Foti
- Dermatology Unit, IRCCS San Raffaele Hospital, Milan, Italy
| | - P Brianti
- Dermatology Unit, IRCCS San Raffaele Hospital, Milan, Italy
| | - F Vaira
- Dermatology Unit, IRCCS San Raffaele Hospital, Milan, Italy
| | - T Grieco
- Dermatology Clinic, Sapienza University of Rome, Rome, Italy
| | - S R Mercuri
- Dermatology Unit, IRCCS San Raffaele Hospital, Milan, Italy
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3
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Sgouros O, Cavallaro M, Cappuzzello F, Carbone D, Agodi C, Altana C, Brischetto GA, Burrello S, Calabrese S, Calvo D, Capirossi V, Chávez Lomelí ER, Ciraldo I, Cutuli M, De Gregorio G, Delaunay F, Djapo H, Eke C, Finocchiaro P, Fisichella M, Foti A, Gargano A, Hacisalihoglu A, Iazzi F, La Fauci L, Linares R, Lubian J, Medina NH, Moralles M, Oliveira JRB, Pakou A, Pandola L, Pinna F, Russo G, Guazzelli MA, Soukeras V, Souliotis G, Spatafora A, Torresi D, Yildirim A, Zagatto VB. Recent results for the one-proton transfer reaction in the 18O+ 48Ti collision at 275 MeV. EPJ Web Conf 2021. [DOI: 10.1051/epjconf/202125204002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The 18O+48Ti reaction was studied at the energy of 275 MeV for the first time under the NUMEN and NURE experimental campaigns with the aim to investigate the complete net of reaction channels potentially involved in the 48Ca→48Ti double charge exchange transition. Such a transition is of great interest because of its relevance to the extraction of 48Ca→48Ti double beta decay nuclear matrix element. The relevant experiment was carried out at the MAGNEX facility of INFN-LNS in Catania. Angular distribution measurements for the various reaction products were performed by using the MAGNEX large acceptance magnetic spectrometer. The present contribution is focused on the analysis of the one-proton transfer channel with emphasis on the particle identification technique and the estimation of background contaminations.
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4
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Sgouros O, Soukeras V, Pakou A, Cappuzzello F, Acosta L, Agodi C, Alamanos N, Calabrese S, Carbone D, Cavallaro M, Foti A, Keeley N, Martel I, Rusek K, Torresi D. Study of continuum excitation by light weakly bound projectiles on proton
target. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201922301058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Elastic scattering and breakup angular distribution measurements for the systems 6,7Li + p were performed at the MAGNEX facility of the Istituto Nazionale di Fisica
Nucleare-Laboratori Nazionali del Sud (INFN-LNS) in Catania, in the energy range of (2.3–5.4)AMeV. The breakup channel was identified and quantified adopting the algorithm MULTIP.Within this algorithm which is a Monte Carlo simulation code, the history of the breakup fragments can be tagged from the rest frame of the decay nucleus itself to the laboratory frame. Angular distribution data of both elastic scattering and breakup were analyzed under the same theoretical model and the influence of continuum on the elastic channel was investigated.
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5
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Carbone D, Cappuzzello F, Agodi C, Cavallaro M, Acosta L, Bonanno D, Bongiovanni D, Boztosun I, Calabrese S, Calvo D, Chávez Lomelí E, Delaunay F, Deshmukh N, Finocchiaro P, Fisichella M, Foti A, Gallo G, Hacisalihoglu A, Iazzi F, Introzzi R, Lanzalone G, Linares R, Longhitano F, Lo Presti D, Medina N, Muoio A, Oliveira J, Pakou A, Pandola L, Pinna F, Reito S, Russo G, Santagati G, Sgouros O, Solakcı S, Soukeras V, Souliotis G, Spatafora A, Torresi D, Tudisco S, Yildirim A, Zagatto V. The nuclear matrix elements of 0νββ decay and the NUMEN project at INFN-LNS. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201819402001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The goal of NUMEN project is to access experimentally driven information on Nuclear Matrix Elements (NME) involved in the neutrinoless double beta decay (0νββ), by high-accuracy measurements of the cross sections of Heavy Ion (HI) induced Double Charge Exchange (DCE) reactions. The knowledge of the nuclear matrix elements is crucial to infer the neutrino average masses from the possible measurement of the half-life of 00νββ decay and to compare experiments on different isotopes. In particular, the (18O, 18Ne) and (20Ne, 20O) reactions are performed as tools for β+β+ and β-β- decays, respectively. The experiments are performed at INFN - Laboratory Nazionali del Sud (LNS) in Catania using the Superconducting Cyclotron (CS) to accelerate the beams and the MAGNEX magnetic spectrometer to detect the reaction products. The measured cross sections are very low, limiting the present exploration to few selected isotopes of interest in the context of typically low-yield experimental runs. In order to make feasible a systematic study of all the candidate nuclei, a major upgrade of the LNS facility is foreseen to increase the experimental yield of about two orders of magnitude. To this purpose, frontier technologies are going to be developed for both the accelerator and the detection systems. In parallel, advanced theoretical models will be developed to extract the nuclear structure information from the measured cross sections.
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6
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Donato MG, Rajamanickam VP, Foti A, Gucciardi PG, Liberale C, Maragò OM. Optical force decoration of 3D microstructures with plasmonic particles. Opt Lett 2018; 43:5170-5173. [PMID: 30320847 DOI: 10.1364/ol.43.005170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 09/27/2018] [Indexed: 06/08/2023]
Abstract
Optical forces are used to push and aggregate gold nanorods onto several substrates creating surface-enhanced Raman scattering (SERS) active hot spots for Raman-based identification of proteins. By monitoring the increase of the protein SERS signal, we observe different aggregation times for different curvatures of the substrates. The slower aggregation dynamics on curved surfaces is justified by a simple geometrical model. In particular, this technique is used to decorate three-dimensional microstructures and to quickly realize hybrid micro/nanosensors for highly sensitive detection of biological material directly in a liquid environment.
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7
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Donato MG, Messina E, Foti A, Smart TJ, Jones PH, Iatì MA, Saija R, Gucciardi PG, Maragò OM. Optical trapping and optical force positioning of two-dimensional materials. Nanoscale 2018; 10:1245-1255. [PMID: 29292452 DOI: 10.1039/c7nr06465a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In recent years, considerable effort has been devoted to the synthesis and characterization of two-dimensional materials. Liquid phase exfoliation (LPE) represents a simple, large-scale method to exfoliate layered materials down to mono- and few-layer flakes. In this context, the contactless trapping, characterization, and manipulation of individual nanosheets hold perspectives for increased accuracy in flake metrology and the assembly of novel functional materials. Here, we use optical forces for high-resolution structural characterization and precise mechanical positioning of nanosheets of hexagonal boron nitride, molybdenum disulfide, and tungsten disulfide obtained by LPE. Weakly optically absorbing nanosheets of boron nitride are trapped in optical tweezers. The analysis of the thermal fluctuations allows a direct measurement of optical forces and the mean flake size in a liquid environment. Measured optical trapping constants are compared with T-matrix light scattering calculations to show a quadratic size scaling for small size, as expected for a bidimensional system. In contrast, strongly absorbing nanosheets of molybdenum disulfide and tungsten disulfide are not stably trapped due to the dominance of radiation pressure over the optical trapping force. Thus, optical forces are used to pattern a substrate by selectively depositing nanosheets in short times (minutes) and without any preparation of the surface. This study will be useful for improving ink-jet printing and for a better engineering of optoelectronic devices based on two-dimensional materials.
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Affiliation(s)
- M G Donato
- CNR-IPCF, Istituto per i Processi Chimico-Fisici, V.le F. Stagno D'Alcontres 37, I-98158, Messina, Italy.
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8
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Cavallaro M, De Napoli M, Cappuzzello F, Orrigo SEA, Agodi C, Bondí M, Carbone D, Cunsolo A, Davids B, Davinson T, Foti A, Galinski N, Kanungo R, Lenske H, Ruiz C, Sanetullaev A. Investigation of the ^{10}Li shell inversion by neutron continuum transfer reaction. Phys Rev Lett 2017; 118:012701. [PMID: 28106447 DOI: 10.1103/physrevlett.118.012701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Indexed: 06/06/2023]
Abstract
This Letter reports a study of the highly debated ^{10}Li structure through the d(^{9}Li,p)^{10}Li one-neutron transfer reaction at 100 MeV. The ^{10}Li energy spectrum is measured up to 4.6 MeV and angular distributions corresponding to different excitation energy regions are reported for the first time. The comparison between data and theoretical predictions, including pairing correlation effects, shows the existence of a p_{1/2} resonance at 0.45±0.03 MeV excitation energy, while no evidence for a significant s-wave contribution close to the threshold energy is observed. Moreover, two high-lying structures are populated at 1.5 and 2.9 MeV. The corresponding angular distributions suggest a significant s_{1/2} partial-wave contribution for the 1.5 MeV structure and a mixing of configurations at higher energy, with the d_{5/2} partial-wave contributing the most to the cross section.
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Affiliation(s)
- M Cavallaro
- INFN-Laboratori Nazionali del Sud, I-95123 Catania, Italy
| | - M De Napoli
- INFN-Sezione di Catania, I-95123 Catania, Italy
| | - F Cappuzzello
- INFN-Laboratori Nazionali del Sud, I-95123 Catania, Italy
- Dipartimento di Fisica e Astronomia, Universitá di Catania, I-95123 Catania, Italy
| | - S E A Orrigo
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - C Agodi
- INFN-Laboratori Nazionali del Sud, I-95123 Catania, Italy
| | - M Bondí
- INFN-Sezione di Catania, I-95123 Catania, Italy
| | - D Carbone
- INFN-Laboratori Nazionali del Sud, I-95123 Catania, Italy
| | - A Cunsolo
- INFN-Laboratori Nazionali del Sud, I-95123 Catania, Italy
| | - B Davids
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - T Davinson
- School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - A Foti
- INFN-Sezione di Catania, I-95123 Catania, Italy
- Dipartimento di Fisica e Astronomia, Universitá di Catania, I-95123 Catania, Italy
| | - N Galinski
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
| | - R Kanungo
- Astronomy and Physics Department, Saint Marys University, Halifax, Nova Scotia B3H 3C3, Canada
| | - H Lenske
- Institut für Theoretische Physik, Universität Giessen, D-35392 Giessen, Germany
| | - C Ruiz
- TRIUMF, Vancouver, British Columbia V6T2A3, Canada
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9
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Muoio A, Agodi C, Bonanno D, Bongiovanni D, Calabrese S, Calcagno L, Carbone D, Cavallaro M, Cappuzzello F, Foti A, Finocchiaro P, Lanzalone G, La Via F, Longhitano F, Lo Presti D, Pandola L, Privitera S, Tudisco S. Silicon carbide detectors study for NUMEN project. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611710006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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10
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Foti A, Hartmann T, Coelho C, Santos-Silva T, Romao MJ, Leimkuhler S. Optimization of the Expression of Human Aldehyde Oxidase for Investigations of Single-Nucleotide Polymorphisms. Drug Metab Dispos 2016; 44:1277-85. [DOI: 10.1124/dmd.115.068395] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 02/01/2016] [Indexed: 01/02/2023] Open
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11
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Carbone D, Agodi C, Cappuzzello F, Cavallaro M, Foti A, Linares R. Extracting the cross section angular distributions for 15C high-energy resonance excited via the ( 18O, 16O) two-neutron transfer reaction. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611704004] [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: 11/14/2022] Open
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12
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Cappuzzello F, Agodi C, Balestra F, Bijker R, Bonanno D, Bongiovanni D, Branchina V, Calabrese S, Calabretta L, Calanna A, Calvo D, Carbone D, Cavallaro M, Colonna M, Ferrero S, Foti A, Finocchiaro P, Giraudo G, Greco V, Iazzi F, Introzzi R, Lanzalone G, Lavagno A, Lo Presti D, Longhitano F, Muoio A, Pandola L, Rifuggiato D, Ruslan M, Santopinto E, Scaltrito L, Tudisco S, Zagatto V. The nuclear matrix elements of 0 νββdecay and the NUMEN project at INFN-LNS. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611710003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Cavallaro M, De Napoli M, Cappuzzello F, Agodi C, Bondí M, Carbone D, Cunsolo A, Davids B, Davinson T, Foti A, Galinski N, Kanungo R, Lenske H, Orrigo S, Ruiz C, Sanetullaev A. Preliminary study of the 10Li nucleus via one-neutron transfer. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611706009] [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
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14
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Messina E, Donato MG, Zimbone M, Saija R, Iatì MA, Calcagno L, Fragalà ME, Compagnini G, D'Andrea C, Foti A, Gucciardi PG, Maragò OM. Optical trapping of silver nanoplatelets. Opt Express 2015; 23:8720-8730. [PMID: 25968710 DOI: 10.1364/oe.23.008720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Optical trapping of silver nanoplatelets obtained with a simple room temperature chemical synthesis technique is reported. Trap spring constants are measured for platelets with different diameters to investigate the size-scaling behaviour. Experimental data are compared with models of optical forces based on the dipole approximation and on electromagnetic scattering within a T-matrix framework. Finally, we discuss applications of these nanoplatelets for surface-enhanced Raman spectroscopy.
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15
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Magazzú A, Spadaro D, Donato MG, Sayed R, Messina E, D’Andrea C, Foti A, Fazio B, Iatí MA, Irrera A, Saija R, Gucciardi PG, Maragó OM. Optical tweezers: a non-destructive tool for soft and biomaterial investigations. Rend Fis Acc Lincei 2015. [DOI: 10.1007/s12210-015-0395-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Foti A, Fenzi GA, Di Pippo F, Gravina MF, Magni P. Testing the saprobity hypothesis in a Mediterranean lagoon: effects of confinement and organic enrichment on benthic communities. Mar Environ Res 2014; 99:85-94. [PMID: 24838081 DOI: 10.1016/j.marenvres.2014.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 03/17/2014] [Accepted: 04/11/2014] [Indexed: 06/03/2023]
Abstract
The macrobenthic community was compared at four sites characterized by varying degrees of freshwater input, organic enrichment and confinement in the Cabras lagoon (Sardinia, Italy). Three sites, riverine (C1), confined (C2) and seaward (C3), were studied on two dates of summer 2010 and on two dates of winter 2011. A fourth site (C12), representative of the central sector of the Cabras lagoon, was included in this study using the extensive historical datasets at our disposal from previously published work. We aimed to test the hypothesis that (1) the benthos is distributed according to the recently proposed concept of habitat saprobity for coastal lagoons that unifies the Pearson-Rosenberg (sensu organic enrichment) and Guélorget-Perthuisot (sensu confinement) models, and (2) indicator species of different saprobic levels can be identified among dominant species occurring along the saprobity gradient. Salinity was also considered as an additional agent of selection in brackish environments. Irrespective of significant seasonal changes within each site, our results highlighted major environmental and biotic differences between sites. At the northward riverine site (C1), most affected by freshwater input and with limited organic matter (OM) enrichment, Corophium orientale was the single dominant species. The most confined site (C2) was characterized by the highest levels of sedimentary OM and benthic Chlorophyll-a and by mesohaline conditions; the site was inhabited mainly by the halolimnobic Hediste diversicolor and Hydrobia spp. Site C12, characterized by a high OM load and high residence time, was dominated by the opportunistic detritivorous Alitta succinea and Polydora ciliata. At the southernmost seaward site (C3) the considerable seawater renewal, resulting in high salinity (only in summer) and limited OM load, favored a much more diverse macrobenthic assemblage, essentially composed of both marine species, such as Corophium insidiosum, Gammarus aequicauda, and brackish-water species, such as Lekanesphaera hookeri and Idotea chelipes. We conclude that the biotic and abiotic characteristics of the Cabras lagoon can be represented by a succession of spatial zones along two main gradients determined by salinity and saprobity. The salinity gradient proved to be the main structural feature in the oligohaline pole, while in the range of variable salinity, saprobity appeared to be the main selection factor. To illustrate our findings, we provide a graphical representation summarizing the changes in environmental parameters and indicator species along the salinity and saprobity gradients.
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Affiliation(s)
- A Foti
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy
| | - G A Fenzi
- CNR-IAMC, National Research Council, Institute for Coastal Marine Environment, Località Sa Mardini, Torregrande, 09170 Oristano, Italy
| | - F Di Pippo
- CNR-IAMC, National Research Council, Institute for Coastal Marine Environment, Località Sa Mardini, Torregrande, 09170 Oristano, Italy; CNR-IRSA, National Research Council, Water Research Institute, Area della Ricerca di Roma 1, Via Salaria km 29, Monterotondo stazione, 00015 Rome, Italy
| | - M F Gravina
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy
| | - P Magni
- CNR-IAMC, National Research Council, Institute for Coastal Marine Environment, Località Sa Mardini, Torregrande, 09170 Oristano, Italy; CNR-ISMAR, National Research Council, Institute of Marine Science, Arsenale Tesa 104, Castello 2737/F, 30122 Venice, Italy.
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Cavallaro M, Cappuzzello F, Bondì M, Carbone D, Garcia VN, Gargano A, Lenzi S, Lubian J, Agodi C, Azaiez F, De Napoli M, Foti A, Franchoo S, Linares R, Nicolosi D, Niikura M, Scarpaci JA, Tropea S. Interference effects between direct and sequential processes in the (18O,16O) reaction. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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18
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Carbone D, Bonaccorso A, Cappuzzello F, Agodi C, Bondì M, Cavallaro M, Cunsolo A, De Napoli M, Foti A, Linares R, Nicolosi D, Tropea S. New structures in the continuum of light nuclei populated by two-neutron transfer reactions. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Cappuzzello F, Lubian J, Oliveira JRB, Agodi C, Bondí M, Carbone D, Cavallaro M, Chamon LC, Cunsolo A, De Napoli M, Foti A, Nunes Garcia V, Gasques LR, Gomes PRS, Linares R, Nicolosi D, Paes B, Tropea S. Effects of configuration mixing in heavy-ion elastic scattering. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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20
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Agodi C, Abou-Haidar Z, Alvarez MAG, Aumann T, Balestra F, Battistoni G, Bocci A, Bohlen TT, Bondì M, Boudard A, Brunetti A, Carpinelli M, Cappuzzello F, Cavallaro M, Carbone D, Cirrone GAP, Cortes-Giraldo MA, Cuttone G, Napoli MD, Durante M, Fernandez-Garcia JP, Finck C, Foti A, Gallardo MI, Golosio B, Iarocci E, Iazzi F, Ickert G, Introzzi R, Juliani D, Krimmer J, Kurz N, Labalme M, Lavagno A, Leifels Y, Fevre AL, Leray S, Marchetto F, Monaco V, Morone MC, Nicolosi D, Oliva P, Paoloni A, Patera V, Piersanti L, Pleskac R, Quesada JM, Randazzo N, Romano F, Rossi D, Rosso V, Rousseau M, Sacchi R, Sala P, Sarti A, Scheidenberger C, Schuy C, Sciubba A, Sfienti C, Simon H, Sipala V, Spiriti E, Stuttge L, Tropea S, Younis H. FIRST experiment: Fragmentation of Ions Relevant for Space and Therapy. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/420/1/012061] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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21
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Lepareux M, Saunier N, Gerardin C, Wery M, Foti A, Pappalardo G, Strazzeri A. States at high excitation energies in24Mg obtained from Li-induced reactions on20Ne. ACTA ACUST UNITED AC 2007. [DOI: 10.1007/bf02725355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Paunio T, Ekelund J, Varilo T, Parker A, Hovatta I, Turunen JA, Rinard K, Foti A, Terwilliger JD, Juvonen H, Suvisaari J, Arajärvi R, Suokas J, Partonen T, Lönnqvist J, Meyer J, Peltonen L. Genome-wide scan in a nationwide study sample of schizophrenia families in Finland reveals susceptibility loci on chromosomes 2q and 5q. Hum Mol Genet 2001; 10:3037-48. [PMID: 11751686 DOI: 10.1093/hmg/10.26.3037] [Citation(s) in RCA: 132] [Impact Index Per Article: 5.7] [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: 11/13/2022] Open
Abstract
We have previously carried out two genome-wide scans in samples of Finns ascertained for schizophrenia from national epidemiological registers. Here, we report data from a third genome scan in a nationwide Finnish schizophrenia study sample of 238 pedigrees with 591 affected individuals. Of the 238 pedigrees, 53 originated from a small internal isolate (IS) on the eastern border of Finland with a well established genealogical history and a small number of founders, who settled in the community 300 years ago. The total study sample of over 1200 individuals were genotyped, using 315 markers. In addition to the previously identified chromosome 1 locus, two new loci were identified on chromosomes 2q and 5q. The highest LOD scores were found in the IS families with marker D2S427 (Z(max) = 4.43) and in the families originating from the late settlement region with marker D5S414 (Z(max) = 3.56). In addition to 1q, 2q and 5q, some evidence for linkage emerged at 4q, 9q and Xp, the regions also suggested by our previous genome scans, whereas, in the nationwide study sample, the region at 7q failed to show further evidence of linkage. The chromosome 5q finding is of particular interest, since several other studies have also shown evidence for linkage in the vicinity of this locus.
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Affiliation(s)
- T Paunio
- Department of Molecular Medicine, National Public Health Institute, Biomedicum, PL 104, 00251 Helsinki, Finland.
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23
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Melita P, Palmeri R, Lazzara S, Lorenzini C, Pergolizzi FP, Foti A, Melita G. Pre and intra-operative methods of staging gastric cancer. Chir Ital 1999; 51:15-20. [PMID: 10514912] [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: 02/14/2023]
Abstract
The aim of this paper was to examine the indications and limits of pre- and intra-operative instrumental diagnosis of gastric cancer. In order to achieve this effectively, the authors emphasized the importance of proper staging methods and obtained a detailed description of tumor diffusion. The most important diagnostic instruments considered were magnetic resonance, endosonography, intra-operative echography, pre- and intra-operative immunoscintography and a cytological examination of peritoneal lavage fluid. The authors concluded that pre- and intra-operative staging of gastric cancer is important for two major reasons: it results in the most accurate definition possible of disease evolution, enabling a proper therapeutic program; and it involves a combination of three complementary metasurgical treatments.
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Affiliation(s)
- P Melita
- Cattedra di Chirurgia Generale, Scuola di Specializzazione in Chirurgia Generale IIo Università degli Studi di Messina
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24
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Cucinotta E, Gorgone S, Lorenzini C, Pergolizzi FP, Foti A, Melita G. [Spontaneous rupture of the esophagus]. Chir Ital 1998; 50:29-33. [PMID: 11762081] [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: 02/23/2023]
Abstract
A series of 8 patients with spontaneous rupture of the esophagus is analysed. Correct diagnosis is difficult. The time lapse between the rupture and diagnosis nevertheless seems to be the most important single factor in the outlook for treatment of spontaneous rupture of the esophagus. Early primary closure of the tear and good drainage of the mediastinum and pleural cavity give the best results in such cases. Sometimes a conservative management should be advocated for the treatment of esophageal perforations.
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Affiliation(s)
- E Cucinotta
- Cattedra di Chirurgia Generale, Scuola di Specializzazione in Chirurgia Generale, Cattedra di Chirurgia Geriatrica, Università degli Studi di Messina
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25
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Fattapposta F, Amabile G, Cordischi MV, Di Venanzio D, Foti A, Pierelli F, D'Alessio C, Pigozzi F, Parisi A, Morrocutti C. Long-term practice effects on a new skilled motor learning: an electrophysiological study. Electroencephalogr Clin Neurophysiol 1996; 99:495-507. [PMID: 9020809 DOI: 10.1016/s0013-4694(96)96560-8] [Citation(s) in RCA: 39] [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: 02/03/2023]
Abstract
Cortical functions concerned with the execution of skilled movements can be studied through complex interactive tasks. Skilled performance task (SPT) offers the greatest deal of information about the electrophysiological components reflecting pre-programming, execution of the movement and control of the results. Overall, these components are indicated as "movement-related brain macropotentials' (MRBMs). Among them, Bereitschaftspotential (BP) reflects cerebral processes related to the preparation of movement and skilled performance positivity (SPP) reflects control processes on the result of performance. There is some evidence supporting a training effect on MRBMs, but less clear is whether long-term practice of a skilled activity could modify learning strategies of a new skilled task. We recorded MRBMs in subjects trained for a long time to perform a highly skillful athletic activity, i.e. gun shooting, and in a group of control subjects without any former experience in skilled motor activities. Our findings demonstrated the existence of a relationship between pre-programming and performance control, as suggested by decrease of BP amplitude and increase of SPP amplitude in presence of high levels of performance. Long-term practice seems to develop better control models on performance, that reduce the need of a high mental effort in pre-programming a skilled action.
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Affiliation(s)
- F Fattapposta
- Istituto di Clinica delle Malattie Nervose e Mentali, Università di Roma La Sapienza, Italy
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26
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Abstract
A patient with typical Ph1-positive CML was studied during sequential phases: (1) initial chronic phase, (2) first myeloid blast crisis, (3) second chronic phase, and (4) accelerated disease leading to a second blast crisis. A point mutation in codon 239 of the p53 gene and a novel chromosome 17 alteration appeared concomitantly with the first blast crisis and then disappeared with re-establishment of a second chronic phase. They did not reappear with the second acute phase, indicating that the clone responsible for the original blast crisis had been suppressed and supplanted by another clone of malignant cells. This observation suggests that in at least some CML patients drug therapy can suppress or eliminate an aggressive malignant cell clone, but that the underlying molecular defect in haemopoietic cells (in this case the c-ABL translocation) persists and other aggressive clones with different molecular lesions eventually arise. Our observations and inferences are consistent with the hypothesis advanced by Fialkow et al (1991) to explain clonal remissions in acute non-lymphocytic leukaemia.
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Affiliation(s)
- A Foti
- UCLA Department of Medicine, 90024
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27
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Villari AC, Mittig W, Lépine-Szily A, Auger G, Bianchi L, Beunard R, Casandjian JM, Ciffre JL, Cunsolo A, Foti A, Gaudard L, Lima CL, Plagnol E, Schutz Y, Siemssen RH, Wieleczko JP. Search for color van der Waals force in 208Pb+208Pb Mott scattering. Phys Rev Lett 1993; 71:2551-2554. [PMID: 10054710 DOI: 10.1103/physrevlett.71.2551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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28
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Fattapposta F, Amabile G, Chiarenza G, Cordischi M, D'Alessio C, Di Venanzio D, Foti A, Pierelli F, Morocutti C. MRBMs and levels of motor skilfulness. Int J Psychophysiol 1993. [DOI: 10.1016/0167-8760(93)90153-g] [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: 10/27/2022]
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29
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Abstract
Chronic myelocytic or Ph1-positive acute lymphoblastic leukemias have been analyzed for alterations in a variety of proto-oncogenes and anti-oncogenes implicated in the progression of chronic myeloid leukemia (CML) from its chronic phase to blast crisis. The most frequent genetic change found in disease evolution is an alteration of the p53 gene involving a point mutation, a rearrangement or a deletion. These gene changes are common in myeloid and undifferentiated variants of blast crisis but are usually undetectable in lymphoid leukemic transformants. Other molecular changes also occur in the clonal evolution of CML. The retinoblastoma-susceptibility (Rb) gene is an anti-oncogene. Structural abnormalities of Rb are frequent in all types of human acute leukemia, but are particularly common in Ph1-positive leukemia of lymphoid phenotype including both Ph1-positive ALL and lymphoid blast crisis of CML. Changes in Rb occur early in the transition to blast crisis with loss of Rb protein being the common factor. Mutations in the N-RAS gene also occur, but are rare in typical blast crisis. They are sometimes seen in Ph1-negative myeloid blast crisis. Since changes in the p53 gene are generally associated with progression of disease of a myeloid phenotype and changes in the Rb gene occur more often with a lymphoid phenotype, a particular molecular alteration may influence the character of disease evolution in CML.
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30
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Ahuja HG, Jat PS, Foti A, Bar-Eli M, Cline MJ. Abnormalities of the retinoblastoma gene in the pathogenesis of acute leukemia. Blood 1991; 78:3259-68. [PMID: 1683797] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The retinoblastoma-susceptibility (Rb) gene is an antioncogene that is frequently altered in retinoblastomas, sarcomas, and some epithelial tumors. We examined the structure of the Rb gene by Southern blotting in 215 cases of leukemias and lymphomas of diverse phenotype and in 15 leukemic cell lines. In selected cases Rb protein expression was examined with specific monoclonal antibodies. Structural abnormalities of the Rb gene with absent protein expression were frequent in all types of human acute leukemia, but were particularly common (27% incidence) in M4 and M5 myeloid leukemia with monocytic differentiation and in Philadelphia chromosome (Ph1)-positive leukemia of lymphoid phenotype (11% to 29% incidence). Changes in Rb were observed early in the transition to acute leukemia in cases of myelodysplastic syndrome and in the accelerated phase of chronic myelocytic leukemia in transition to blast crisis. In one case, molecular changes in Rb could be correlated with leukemia remission and relapse. We conclude that the Rb antioncogene is commonly involved in the evolution of human acute leukemias, particularly in those of a monocytic phenotype and in lymphoid leukemia in which there is an antecedent alteration of the Ph1 chromosome.
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MESH Headings
- Acute Disease
- Adolescent
- Adult
- Antibodies, Monoclonal
- Blast Crisis/genetics
- Blotting, Southern
- Child
- DNA, Neoplasm/chemistry
- DNA, Neoplasm/genetics
- Gene Expression
- Genes, Retinoblastoma/genetics
- Humans
- Immunoblotting
- Leukemia/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myeloid, Acute/genetics
- Lymphoma/genetics
- Myelodysplastic Syndromes/genetics
- Philadelphia Chromosome
- Polymorphism, Restriction Fragment Length
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
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31
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Foti A, Ahuja HG, Allen SL, Koduru P, Schuster MW, Schulman P, Bar-Eli M, Cline MJ. Correlation between molecular and clinical events in the evolution of chronic myelocytic leukemia to blast crisis. Blood 1991; 77:2441-4. [PMID: 2039825] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A patient with typical Philadelphia chromosome (Ph1)-positive chronic myelocytic leukemia (CML) was studied during sequential phases of disease: (1) initial chronic phase; (2) myeloid blast crisis; (3) second chronic phase; and (4) accelerated disease. A point mutation in the coding sequence of the p53 gene first appeared concomitantly with the blast crisis and then disappeared with the re-establishment of a second chronic phase. The chromosomal concomitant of the molecular alteration was a deletion of 17p. These observations suggest that abnormalities of the p53 anti-oncogene are temporally related to the clinical progression of some cases of CML and are probably responsible for the development of blast crisis in these cases.
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MESH Headings
- Adult
- Base Sequence
- Blast Crisis/genetics
- Chromosome Deletion
- DNA/blood
- DNA/genetics
- DNA/isolation & purification
- Exons
- Gene Rearrangement
- Humans
- Introns
- Karyotyping
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/physiopathology
- Male
- Molecular Sequence Data
- Mutation
- Polymerase Chain Reaction/methods
- Tumor Suppressor Protein p53/genetics
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Affiliation(s)
- A Foti
- UCLA School of Medicine 90024-1678
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32
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Ahuja H, Bar-Eli M, Arlin Z, Advani S, Allen SL, Goldman J, Snyder D, Foti A, Cline M. The spectrum of molecular alterations in the evolution of chronic myelocytic leukemia. J Clin Invest 1991; 87:2042-7. [PMID: 2040694 PMCID: PMC296960 DOI: 10.1172/jci115234] [Citation(s) in RCA: 120] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
DNA from 135 patients with chronic myelogenous leukemia (CML) at various clinical stages and Philadelphia (Ph1) chromosome positive acute lymphoblastic leukemia was investigated for alterations in a variety of proto-oncogenes which have been implicated in the evolution of CML from its chronic phase to blast crisis. The most common genetic change found in the evolution of typical Ph1 chromosome positive CML to blast crisis was an alteration of the p53 gene involving either a rearrangement, a deletion, or a point mutation in the coding sequence of the gene. Alterations of the p53 gene were found in the myeloid and the rare megakaryocytic variant of blast crisis but were absent in the lymphoid leukemic transformants. Gross structural alterations were seen in 11 of 54 (20%) of myeloid or unknown phenotypes of blast crisis and in only 1 of 44 chronic phase cases. Eight examples of mutations in the open reading frame of the p53 gene at codons 49, 53, 60, 140, 202, 204, 238, and 239 were observed in blast crisis patients. Mutations in the N-RAS gene were rare in typical blast crisis (2 of 27 cases) but were found in megakaryocytic and Ph1 negative myeloid blast crisis. We concluded that heterogeneous alterations in the p53 gene and occasionally in the N-RAS genes accompany the evolution of chronic phase CML to blast crisis.
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MESH Headings
- Blotting, Northern
- Blotting, Southern
- DNA, Neoplasm/genetics
- Gene Expression Regulation, Neoplastic
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myeloid, Accelerated Phase/genetics
- Leukemia, Myeloid, Chronic-Phase/genetics
- Mutation
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Proto-Oncogene Proteins p21(ras)/genetics
- Transcription, Genetic
- Tumor Suppressor Protein p53/genetics
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Affiliation(s)
- H Ahuja
- UCLA Department of Medicine 90024
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33
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Fattapposta F, Cordischi MV, D'Alessio C, Foti A, Amabile G. [Parkinson disease and cognitive evoked potentials]. Riv Neurol 1990; 60:240-2. [PMID: 2100050] [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: 12/30/2022]
Abstract
The Authors introduce some questions concerning cognitive impairment in Parkinsonian patients and they focus the attention on 'bradyphrenia'. They briefly discuss the methodological difficulties in studying this kind of disturbances in Parkinson's disease (PD) and the approach to this problem with the help of the Event-Related Potentials or ERPs. Finally, they review literature and their data on Contingent Negative Variation (CNV) and P300 in PD and conclude that interesting and useful informations can be obtained by means of the electrophysiological methods.
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Affiliation(s)
- F Fattapposta
- Istituto di Clinica delle Malattie Nervose e Mentali, Università La Sapienza, Roma
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34
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Foti A, Bar-Eli M, Ahuja HG, Cline MJ. A splicing mutation accounts for the lack of p53 gene expression in a CML blast crisis cell line: a novel mechanism of p53 gene inactivation. Br J Haematol 1990; 76:143-5. [PMID: 2223633 DOI: 10.1111/j.1365-2141.1990.tb07849.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [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: 12/30/2022]
Abstract
Alterations of the p53 anti-oncogene have recently been found to occur frequently in the blast crisis of chronic myelocytic leukaemia. The p53 gene may be altered by gross structural alterations or by point mutations in the coding sequence. We now report a novel mechanism of gene inactivation in a blast crisis cell line where a mutation in a splice donor site at the 5' end of the fifth intron of the gene interrupts RNA processing and gene expression.
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Affiliation(s)
- A Foti
- Division of Hematology/Oncology, UCLA School of Medicine 90024-1678
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35
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Ahuja HG, Foti A, Bar-Eli M, Cline MJ. The pattern of mutational involvement of RAS genes in human hematologic malignancies determined by DNA amplification and direct sequencing. Blood 1990; 75:1684-90. [PMID: 2183888] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
DNA from 161 patients with various forms of hematologic malignancies were investigated for mutations in exons 1 and 2 of the N-RAS, K-RAS and Ha-RAS gene by direct sequencing of DNA amplified in vitro by the polymerase chain reaction. Mutations involving either codons 11, 12, or 13 of the N-RAS gene were identified in 18 of the 161 patients. The relative frequencies of N-RAS gene mutations in these hematologic disorders was as follows: acute myelogenous leukemia (AML), 15%; acute lymphoblastic leukemia (ALL), 14%; myelodysplastic syndromes, 24%; and myeloid and lymphoid blast crisis of chronic myelogenous leukemia (CML), 3%. No correlation was observed between the presence of mutations and cytologic features or immunophenotype of these malignancies. Mutations involving codons 12 or 13 were equally prevalent, with a glycine to aspartic acid substitution being the most frequently encountered change. A single T-ALL case had a codon 11 mutation resulting in substitution of alanine with threonine. We failed to find mutations in exons 1 and 2 of the K-RAS or Ha-RAS genes in any case except a single AML with a mutation in codon 61 of the K-RAS gene. Also, no mutations were identified in chronic phase of CML, chronic lymphocytic leukemia. Ph1 positive ALL, non-Hodgkin's lymphoma, Hodgkin's disease, or multiple myeloma. These results indicate that RAS mutations, especially those involving exon 1 of the N-RAS gene, are frequent only in a subset of hematologic malignancies.
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Affiliation(s)
- H G Ahuja
- Department of Medicine, Jonsson Cancer Center, UCLA School of Medicine 90024-1678
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36
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Ahuja HG, Foti A, Zhou DJ, Cline MJ. Analysis of proto-oncogenes in acute myeloid leukemia: loss of heterozygosity for the Ha-ras gene. Blood 1990; 75:819-22. [PMID: 1967953] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
At least 13 of 34 patients with acute myeloid leukemia (AML) of varying FAB types were heterozygous for a BamHI restriction fragment length polymorphism (RFLP) of the Ha-ras gene on chromosome 11. In 4 of these 13 patients, one allele of the Ha-ras gene was deleted. Two of these cases had an informative heterozygosity for an RFLP on the long arm of chromosome 11. Analysis of these cases indicated that loss of genes from chromosome 11 was restricted to the short arm. In three cases with loss of one Ha-ras gene, the remaining gene had no mutations in critical areas of exons 1 and 2. With the exception of one AML case with amplification of MYC, no gross structural abnormalities in 12 other oncogenes were detected.
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Affiliation(s)
- H G Ahuja
- Division of Hematology/Oncology, University of California, Los Angeles
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37
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Stanzione P, Fattapposta F, Tagliati M, D'Alessio C, Marciani MG, Foti A, Amabile G. Dopaminergic pharmacological manipulations in normal humans confirm the specificity of the visual (PERG-VEP) and cognitive (P300) electrophysiological alterations in Parkinson's disease. Electroencephalogr Clin Neurophysiol Suppl 1990; 41:216-20. [PMID: 2289431 DOI: 10.1016/b978-0-444-81352-7.50026-1] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Retinal and occipital visual evoked potentials and event-related potentials (P300) have been recorded in normal human subjects before and after the administration of the dopaminergic receptor antagonist, haloperidol, and/or the dopaminergic precursor L-DOPA. The data show that either retinal or occipital visual potentials and P300 are delayed by haloperidol. These findings are consistent with the hypothesis that haloperidol in healthy subjects mimicks the electrophysiological abnormalities observed in Parkinson's disease. On the other hand, L-DOPA does not generally modify these latencies in normals, while it is known to decrease the same parameters in parkinsonian patients. This is in accord with the involvement of a specific mechanism in the recovery observed in parkinsonian patients after L-DOPA therapy. Our data confirm that the alterations of visual and cognitive potentials observed in Parkinson's disease are closely related to the impairment of dopaminergic transmission.
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Affiliation(s)
- P Stanzione
- Clinica Neurologica, II Università di Roma, Italy
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38
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Foti A, Rumi C, Dordoni PL, Camaioni D, Rodolà F, Abballe C. [Professional responsibility of the hospital physician]. Recenti Prog Med 1990; 81:6-8. [PMID: 2236830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- A Foti
- Istituto di Anestesiologia e Rianimazione, Università Cattolica del S. Cuore, Roma
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39
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Abstract
A novel mutation of the N-RAS gene of T-ALL blast cells was detected by a direct sequencing of in vitro amplified exon-1 of the N-RAS gene. Threonine (ACA) was substituted for alanine (GCA) at codon 11. This mutation would have been overlooked by conventional probe hybridization techniques. A search for other mutations in N-RAS exon-1 in T-ALL revealed a codon 13 mutation substituting aspartic acid (GAT) for glycine (GGT) in one of 18 patients. No mutations at codon 12 were detected.
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Affiliation(s)
- M Bar-Eli
- Division of Hematology/Oncology, University of California, Los Angeles 90024-1678
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40
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Bar-Eli M, Ahuja H, Gonzalez-Cadavid N, Foti A, Cline MJ. Analysis of N-RAS exon-1 mutations in myelodysplastic syndromes by polymerase chain reaction and direct sequencing. Blood 1989; 73:281-3. [PMID: 2642713] [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: 01/01/2023] Open
Abstract
Mutations in codons 12 or 13 of the first exon of the N-RAS gene have been reported in myelodysplastic syndromes (MDS) in frequencies that vary between 9% and 40% depending on the techniques used in analysis. Gene amplification and direct sequencing provides the only unambiguous method of detecting those mutations that induce amino acid alterations. Using this technique, we analyzed 21 MDS patients for mutations in exon-1 of N-RAS. Codon 12 mutations substituting aspartic acid (GAT) for glycine (GGT) were found in four cases, and a codon 13 mutation substituting alanine (GCT) for glycine (GGT) was detected in one patient. We conclude that N-RAS exon-1 mutations in one patient. We conclude that N-RAS exon-1 mutations producing amino acid changes occur in about 20% to 25% of MDS cases.
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Affiliation(s)
- M Bar-Eli
- Division of Hematology/Oncology, University of California, Los Angeles 90024-1678
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41
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Cardella G, Cunsolo A, Foti A, Immè G, Pappalardo G, Raciti G, Rizzo F, Alamanos N, Berthier B, Saunier N. Interference effects between 17O states populated in the 13C(6Li,d)17O*--> alpha +13C reaction. Phys Rev C Nucl Phys 1987; 36:2403-2408. [PMID: 9954364 DOI: 10.1103/physrevc.36.2403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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42
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Foti A, Kimura S, DeQuattro V, Lee D. Liquid-chromatographic measurement of catecholamines and metabolites in plasma and urine. Clin Chem 1987; 33:2209-13. [PMID: 3690838] [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: 01/07/2023]
Abstract
In this general method for measuring the concentrations of neurotransmitters in body fluids by "high performance" liquid chromatography (HPLC), the procedures for extracting different biogenic amines from body fluids vary, but the basic chromatographic conditions are the same for all. We use citric/formic acid buffer as the mobile phase, a C18 column, and an electrochemical detector. Specificity is better than in previously reported methods. Because of its excellent cost efficiency, we consider this to be the method of choice for quantifying biogenic amines.
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Affiliation(s)
- A Foti
- Department of Medicine, USC School of Medicine, Los Angeles 90033
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43
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Abstract
Abstract
In this general method for measuring the concentrations of neurotransmitters in body fluids by "high performance" liquid chromatography (HPLC), the procedures for extracting different biogenic amines from body fluids vary, but the basic chromatographic conditions are the same for all. We use citric/formic acid buffer as the mobile phase, a C18 column, and an electrochemical detector. Specificity is better than in previously reported methods. Because of its excellent cost efficiency, we consider this to be the method of choice for quantifying biogenic amines.
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Affiliation(s)
- A Foti
- Department of Medicine, USC School of Medicine, Los Angeles 90033
| | - S Kimura
- Department of Medicine, USC School of Medicine, Los Angeles 90033
| | - V DeQuattro
- Department of Medicine, USC School of Medicine, Los Angeles 90033
| | - D Lee
- Department of Medicine, USC School of Medicine, Los Angeles 90033
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Abstract
The hemodynamic effects of oral bucindolol, a non-selective beta-adrenergic blocking agent with intrinsic sympathomimetic activity and direct vasodilating properties, were studied at rest and during handgrip exercise with a flotation-directed pulmonary artery catheter in 12 patients with mild to moderate essential hypertension. After the initial dose of 150 mg of bucindolol, blood pressure (BP) was significantly reduced and cardiac output was increased (from 5.9 +/- 0.8 to 6.8 +/- 1.6 liters/min) in the supine position and during exercise (p less than 0.05). Systemic vascular resistance was reduced (from 1,555 +/- 339 to 1,311 +/- 467 dynes s cm-5, p less than 0.01) at rest and without significant changes during exercise. There were increases in heart rate (13 +/- 13%, p less than 0.01) and right atrial (69 +/- 77%, p less than 0.05), pulmonary arterial (38 +/- 24 %, p less than 0.001) and pulmonary artery wedge pressures (62 +/- 46%, p less than 0.001) during exercise. Bucindolol did not change these variables at rest or during exercise. Bucindolol increased plasma norepinephrine levels both at rest (from 330 +/- 151 to 588 +/- 320 ng/liter, p less than 0.01) and during exercise (from 468 +/- 220 to 685 +/- 390 ng/liter, p less than 0.05). After 4 weeks of bucindolol with doses of 50 to 200 mg 3 times daily, BP was reduced in both supine and standing positions (mean arterial BP of 11 +/- 7% [p less than 0.001] and 11 +/- 6% [p less than 0.001], respectively), without changes in cardiac output, systemic vascular resistance or plasma norepinephrine level.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- S Kimura
- White Memorial Medical Center, Los Angeles, California
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Mittig W, Chouvel JM, Long ZW, Bianchi L, Cunsolo A, Fernandez B, Foti A, Gastebois J, Gillibert A, Gregoire C, Schutz Y, Stephan C. Measurement of total reaction cross sections of exotic neutron-rich nuclei. Phys Rev Lett 1987; 59:1889-1891. [PMID: 10035360 DOI: 10.1103/physrevlett.59.1889] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lee DD, DeQuattro V, Cox T, Pyter L, Foti A, Allen J, Barndt R, Azen S, Davison G. Neurohumoral mechanisms and left ventricular hypertrophy: effects of hygienic therapy. J Hum Hypertens 1987; 1:147-51. [PMID: 3333525] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To determine the effects of hygienic (non-drug) therapy on blood pressure (BP) control and its relationship to sympathetic tone and left ventricular mass (LVM) in primary hypertension, plasma norepinephrine (NE) and renin activity (PRA), LVM, and nutritional and behavioral status were assessed in 76 borderline to mild hypertensives. Pretherapy plasma NE was related to diastolic blood pressure (DBP) and PRA (r = 0.24, P less than .05 and r = 0.37, P less than .01, respectively). Plasma NE of high renin patients (221 +/- 52) (mean +/- SD) was greater than that of normal renin patients (159 +/- 61, ng/l, P less than .01). LVM was related to systolic blood pressure (SBP) (P less than .001), DBP (P less than .01) and urinary sodium (P less than .05), and inversely related to PRA (P less than .01). Septal wall thickness was related to hostility (r = 0.42, P less than .05). After seven weeks of hygienic therapy, DBP was reduced by 6 mmHg (P less than .01). The change in SBP was related to baseline plasma NE (P less than .05) and inversely related to LVM (P less than .05). These results suggest that raised sympathetic tone may be a pathogenic factor in primary hypertension and that hygienic therapy lowers BP more effectively in patients with raised sympathetic tone and low LVM.
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Affiliation(s)
- D D Lee
- University of Southern California School of Medicine, Los Angeles 90033
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47
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Auger F, Berthier B, Cunsolo A, Foti A, Mittig W, Pascaud JM, Plagnol E, Québert J, Wieleczko JP. Production and decay of highly excited nuclear systems formed in 84Kr +12C and 27Al collisions at 35 MeV/nucleon. Phys Rev C Nucl Phys 1987; 35:190-203. [PMID: 9953751 DOI: 10.1103/physrevc.35.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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48
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Abstract
To define the mechanisms whereby clonidine lowers blood pressure, we measured cerebrospinal fluid and plasma levels of norepinephrine, normetanephrine, epinephrine, dopamine, and the dopamine metabolite homovanillic acid in 10 primary hypertensive subjects before and after 3 months of clonidine treatment (mean dose, 0.68 mg/day). Catecholamines were measured by radioenzymatic methods. Cerebrospinal fluid and plasma sampling was performed after subjects had fasted and remained supine overnight, and plasma sampling was repeated 2 hours later, after subjects had ambulated. Supine and upright blood pressure fell, as might be expected. Cerebrospinal fluid levels of norepinephrine and normetanephrine fell significantly, but dopamine and homovanillic acid levels were unchanged. Plasma norepinephrine, normetanephrine, and epinephrine levels decreased 30 to 50%, and supine dopamine levels also fell. The percent fall in supine blood pressure was related to the fall of cerebrospinal fluid and plasma norepinephrine. There were also positive relationships between the decreases of plasma norepinephrine and of normetanephrine and dopamine. The cerebrospinal fluid/plasma norepinephrine ratio was unaffected by clonidine, suggesting that the drug lowered both pools equally. Our findings indicate that clonidine decreases both central and peripheral norepinephrine activity. The dopaminergic activity of cerebrospinal fluid was unaffected by clonidine, and though plasma dopamine levels tended to be lower after treatment, mean plasma prolactin level, an index of dopaminergic activity, was also unchanged. The fall in plasma epinephrine level is probably related to diminished sympathetic adrenomedullary stimulation and is unlikely to contribute to clonidine's antihypertensive action. These results also suggest that measurement of normetanephrine in cerebrospinal fluid and plasma provides a good index of norepinephrine activity.
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DeQuattro V, deGrau A, Foti A, Kim SJ, DeQuattro E, Allen J. Effects of exercise on blood pressure, plasma catecholamines, potassium and the electrocardiogram after diuretic and neural-blocking therapy for moderate hypertension. Am J Cardiol 1985; 56:39D-45D. [PMID: 2412430 DOI: 10.1016/0002-9149(85)91114-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Blood pressure control in mild and moderate hypertension may reduce morbidity and mortality. On the other hand, antihypertensive drugs may cause adverse metabolic, electrolyte, neural and hemodynamic alterations that detract from their effectiveness. The effect of hydrochlorothiazide (HCTZ) on some of these factors was compared with that of HCTZ and a sympatholytic drug in 20 hypertensive patients with left ventricular hypertrophy and retinopathy. HCTZ controlled blood pressure at rest and during maximum treadmill exercise (-12 mm Hg systolic and diastolic pressure (p less than 0.05), reduced left ventricular mass by 7% (p less than 0.05) and lessened aerobic impairment at maximum treadmill exercise by 45% (p less than 0.05). These effects were further improved after "neural blockade." A potential adverse effect of HCTZ--hypokalemia (-0.6 mEq/liter, p less than 0.01)--and the associated incidence of ectopy during effort (50%) were lessened after neutralizing neural tone. Combination therapy with low-dose diuretic and sympatholytic drugs was effective and well tolerated in patients with cardiac and vascular sequelae of moderately severe hypertension.
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Speciale G, Gemelli F, Biondo G, Donato V, Foti A, Maiorca C, Barrile G, Baldari N, Cucinotta E. [A case of Merkel's cell tumor]. Chir Patol Sper 1985; 33:51-61. [PMID: 3870758] [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: 01/07/2023]
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