1
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Puzelli S, Facchini M, Piacentini S, Di Mario G, Colucci ME, Calzoletti L, Fabiani C, Di Martino A, Veronesi L, Biasucci G, Codeluppi M, Cascio GL, Schiavo R, Rampini A, Affanni P, Palamara AT, Stefanelli P. Characterization of an influenza B virus isolated from a fatal case of myocarditis in a pediatric patient in Italy. J Infect Public Health 2024; 17:417-420. [PMID: 38262078 DOI: 10.1016/j.jiph.2023.12.018] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/25/2024] Open
Abstract
Influenza B is one of the infective agents that can cause rapid and fatal myocarditis in children. Here, we describe a fatal case of myocarditis in a previously healthy child, after infection with an influenza B/Victoria-lineage virus during the 2022-23 epidemic season in Italy. Influenza B virus was isolated also in a second case, a younger family member showing only a mild influenza-like illness. Genotypic and phenotypic analyses have been performed on both virus samples and results showed that HA1 sequences were identical and genetically and antigenically related to other B viruses circulating in 2022-23 season in Italy. However, a D129N substitution was found in the receptor binding domain of the HA of the two viruses, not detected in other circulating viruses in Italy but only in a proportion of those circulating in other European countries. Phenotypic analyses assessed the susceptibility towards either neuraminidase inhibitors and baloxavir. Annual influenza vaccination remains one of the best interventions to prevent complications such as myocarditis, particularly in children.
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Affiliation(s)
- Simona Puzelli
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy.
| | - Marzia Facchini
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Sara Piacentini
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Giuseppina Di Mario
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | | | - Laura Calzoletti
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Concetta Fabiani
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Angela Di Martino
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Licia Veronesi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Giacomo Biasucci
- Department of Medicine and Surgery, University of Parma, Parma, Italy; Pediatrics & Neonatology Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Mauro Codeluppi
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | | | - Roberta Schiavo
- Microbiology Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | | | - Paola Affanni
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Anna Teresa Palamara
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Paola Stefanelli
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Rome, Italy
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2
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Piacentini S, Riccio A, Santopolo S, Pauciullo S, La Frazia S, Rossi A, Rossignol JF, Santoro MG. The FDA-approved drug nitazoxanide is a potent inhibitor of human seasonal coronaviruses acting at postentry level: effect on the viral spike glycoprotein. Front Microbiol 2023; 14:1206951. [PMID: 37705731 PMCID: PMC10497118 DOI: 10.3389/fmicb.2023.1206951] [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] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 08/07/2023] [Indexed: 09/15/2023] Open
Abstract
Coronaviridae is recognized as one of the most rapidly evolving virus family as a consequence of the high genomic nucleotide substitution rates and recombination. The family comprises a large number of enveloped, positive-sense single-stranded RNA viruses, causing an array of diseases of varying severity in animals and humans. To date, seven human coronaviruses (HCoV) have been identified, namely HCoV-229E, HCoV-NL63, HCoV-OC43 and HCoV-HKU1, which are globally circulating in the human population (seasonal HCoV, sHCoV), and the highly pathogenic SARS-CoV, MERS-CoV and SARS-CoV-2. Seasonal HCoV are estimated to contribute to 15-30% of common cold cases in humans; although diseases are generally self-limiting, sHCoV can sometimes cause severe lower respiratory infections and life-threatening diseases in a subset of patients. No specific treatment is presently available for sHCoV infections. Herein we show that the anti-infective drug nitazoxanide has a potent antiviral activity against three human endemic coronaviruses, the Alpha-coronaviruses HCoV-229E and HCoV-NL63, and the Beta-coronavirus HCoV-OC43 in cell culture with IC50 ranging between 0.05 and 0.15 μg/mL and high selectivity indexes. We found that nitazoxanide does not affect HCoV adsorption, entry or uncoating, but acts at postentry level and interferes with the spike glycoprotein maturation, hampering its terminal glycosylation at an endoglycosidase H-sensitive stage. Altogether the results indicate that nitazoxanide, due to its broad-spectrum anti-coronavirus activity, may represent a readily available useful tool in the treatment of seasonal coronavirus infections.
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Affiliation(s)
- Sara Piacentini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Anna Riccio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Silvia Santopolo
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Silvia Pauciullo
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Simone La Frazia
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Antonio Rossi
- Institute of Translational Pharmacology, CNR, Rome, Italy
| | | | - M. Gabriella Santoro
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
- Institute of Translational Pharmacology, CNR, Rome, Italy
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3
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Stachulski AV, Rossignol JF, Pate S, Taujanskas J, Iggo JA, Aerts R, Pascal E, Piacentini S, La Frazia S, Santoro MG, van Vooren L, Sintubin L, Cooper M, Swift K, O’Neill PM. Thiazolide Prodrug Esters and Derived Peptides: Synthesis and Activity. ACS Bio Med Chem Au 2023; 3:327-334. [PMID: 37599793 PMCID: PMC10436260 DOI: 10.1021/acsbiomedchemau.2c00083] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 08/22/2023]
Abstract
Amino acid ester prodrugs of the thiazolides, introduced to improve the pharmacokinetic parameters of the parent drugs, proved to be stable as their salts but were unstable at pH > 5. Although some of the instability was due to simple hydrolysis, we have found that the main end products of the degradation were peptides formed by rearrangement. These peptides were stable solids: they maintained significant antiviral activity, and in general, they showed improved pharmacokinetics (better solubility and reduced clearance) compared to the parent thiazolides. We describe the preparation and evaluation of these peptides.
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Affiliation(s)
- Andrew V. Stachulski
- Donnan
and Robert Robinson Laboratories, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K.
| | | | - Sophie Pate
- Donnan
and Robert Robinson Laboratories, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K.
| | - Joshua Taujanskas
- Donnan
and Robert Robinson Laboratories, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K.
| | - Jonathan A. Iggo
- Donnan
and Robert Robinson Laboratories, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K.
| | - Rudi Aerts
- Romark
Belgium BVBA, Roosveld
6, 3400 Landen, Belgium
| | | | - Sara Piacentini
- Department
of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Simone La Frazia
- Department
of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - M. Gabriella Santoro
- Department
of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
- Institute
of Translational Pharmacology, CNR, Area della Ricerca di Roma 2, Via Fosso del Cavaliere, 00133 Roma, Italy
| | | | | | - Mark Cooper
- Bio-Techne, Avonmouth, Bristol BS11 9QD, U.K.
| | - Karl Swift
- Bio-Techne, Avonmouth, Bristol BS11 9QD, U.K.
| | - Paul M. O’Neill
- Donnan
and Robert Robinson Laboratories, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K.
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4
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Agnes P, Albuquerque IFM, Alexander T, Alton AK, Ave M, Back HO, Batignani G, Biery K, Bocci V, Bonivento WM, Bottino B, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Campos MD, Canci N, Caravati M, Cargioli N, Cariello M, Carlini M, Cataudella V, Cavalcante P, Cavuoti S, Chashin S, Chepurnov A, Cicalò C, Covone G, D'Angelo D, Davini S, De Candia A, De Cecco S, De Filippis G, De Rosa G, Derbin AV, Devoto A, D'Incecco M, Dionisi C, Dordei F, Downing M, D'Urso D, Fairbairn M, Fiorillo G, Franco D, Gabriele F, Galbiati C, Ghiano C, Giganti C, Giovanetti GK, Goretti AM, Grilli di Cortona G, Grobov A, Gromov M, Guan M, Gulino M, Hackett BR, Herner K, Hessel T, Hosseini B, Hubaut F, Hungerford EV, Ianni A, Ippolito V, Keeter K, Kendziora CL, Kimura M, Kochanek I, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lissia M, Longo G, Lychagina O, Machulin IN, Mapelli LP, Mari SM, Maricic J, Messina A, Milincic R, Monroe J, Morrocchi M, Mougeot X, Muratova VN, Musico P, Nozdrina AO, Oleinik A, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pelczar K, Pelliccia N, Piacentini S, Pocar A, Poehlmann DM, Pordes S, Poudel SS, Pralavorio P, Price DD, Ragusa F, Razeti M, Razeto A, Renshaw AL, Rescigno M, Rode J, Romani A, Sablone D, Samoylov O, Sandford E, Sands W, Sanfilippo S, Savarese C, Schlitzer B, Semenov DA, Shchagin A, Sheshukov A, Skorokhvatov MD, Smirnov O, Sotnikov A, Stracka S, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Unzhakov EV, Vishneva A, Vogelaar RB, Wada M, Wang H, Wang Y, Westerdale S, Wojcik MM, Xiao X, Yang C, Zuzel G. Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50. Phys Rev Lett 2023; 130:101001. [PMID: 36962014 DOI: 10.1103/physrevlett.130.101001] [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] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/23/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Dark matter elastic scattering off nuclei can result in the excitation and ionization of the recoiling atom through the so-called Migdal effect. The energy deposition from the ionization electron adds to the energy deposited by the recoiling nuclear system and allows for the detection of interactions of sub-GeV/c^{2} mass dark matter. We present new constraints for sub-GeV/c^{2} dark matter using the dual-phase liquid argon time projection chamber of the DarkSide-50 experiment with an exposure of (12 306±184) kg d. The analysis is based on the ionization signal alone and significantly enhances the sensitivity of DarkSide-50, enabling sensitivity to dark matter with masses down to 40 MeV/c^{2}. Furthermore, it sets the most stringent upper limit on the spin independent dark matter nucleon cross section for masses below 3.6 GeV/c^{2}.
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Affiliation(s)
- P Agnes
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - I F M Albuquerque
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - T Alexander
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - A K Alton
- Physics Department, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - M Ave
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - H O Back
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - G Batignani
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Biery
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bocci
- INFN Sezione di Roma, Roma 00185, Italy
| | | | - B Bottino
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - S Bussino
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - M Cadeddu
- INFN Cagliari, Cagliari 09042, Italy
| | - M Cadoni
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - F Calaprice
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - M D Campos
- Physics, Kings College London, Strand, London WC2R 2LS, United Kingdom
| | - N Canci
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | | | | | - M Carlini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - V Cataudella
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - P Cavalcante
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Cavuoti
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S Chashin
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - A Chepurnov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - C Cicalò
- INFN Cagliari, Cagliari 09042, Italy
| | - G Covone
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D D'Angelo
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - S Davini
- INFN Genova, Genova 16146, Italy
| | - A De Candia
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S De Cecco
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - G De Filippis
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - G De Rosa
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - A V Derbin
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Devoto
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - M D'Incecco
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Dionisi
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - F Dordei
- INFN Cagliari, Cagliari 09042, Italy
| | - M Downing
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D D'Urso
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - M Fairbairn
- Physics, Kings College London, Strand, London WC2R 2LS, United Kingdom
| | - G Fiorillo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D Franco
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - C Galbiati
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - C Ghiano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Giganti
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - G K Giovanetti
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A M Goretti
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Grobov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - M Gromov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M Guan
- Institute of High Energy Physics, Beijing 100049, China
| | - M Gulino
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Engineering and Architecture Faculty, Università di Enna Kore, Enna 94100, Italy
| | - B R Hackett
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - K Herner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Hessel
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - F Hubaut
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - E V Hungerford
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - An Ianni
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - K Keeter
- School of Natural Sciences, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - C L Kendziora
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Kimura
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - I Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - D Korablev
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - G Korga
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A Kubankin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - M Kuss
- INFN Pisa, Pisa 56127, Italy
| | - M La Commara
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - M Lai
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - X Li
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M Lissia
- INFN Cagliari, Cagliari 09042, Italy
| | - G Longo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - O Lychagina
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - I N Machulin
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - L P Mapelli
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S M Mari
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - J Maricic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - A Messina
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - R Milincic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - J Monroe
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - M Morrocchi
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - X Mougeot
- Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel (LNE-LNHB), F-91120 Palaiseau, France
| | - V N Muratova
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - P Musico
- INFN Genova, Genova 16146, Italy
| | - A O Nozdrina
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A Oleinik
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - F Ortica
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - L Pagani
- Department of Physics, University of California, Davis, California 95616, USA
| | - M Pallavicini
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - L Pandola
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - E Pantic
- Department of Physics, University of California, Davis, California 95616, USA
| | - E Paoloni
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Pelczar
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - N Pelliccia
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | | | - A Pocar
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D M Poehlmann
- Department of Physics, University of California, Davis, California 95616, USA
| | - S Pordes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S S Poudel
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - P Pralavorio
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - D D Price
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - F Ragusa
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - M Razeti
- INFN Cagliari, Cagliari 09042, Italy
| | - A Razeto
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A L Renshaw
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | | | - J Rode
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - A Romani
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - D Sablone
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - E Sandford
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - W Sands
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - S Sanfilippo
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - C Savarese
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - B Schlitzer
- Department of Physics, University of California, Davis, California 95616, USA
| | - D A Semenov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Shchagin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M D Skorokhvatov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - O Smirnov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - A Sotnikov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - Y Suvorov
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - R Tartaglia
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Tonazzo
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | - E V Unzhakov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Vishneva
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - M Wada
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - H Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - Y Wang
- Institute of High Energy Physics, Beijing 100049, China
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S Westerdale
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M M Wojcik
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - X Xiao
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - C Yang
- Institute of High Energy Physics, Beijing 100049, China
| | - G Zuzel
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
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5
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Agnes P, Albuquerque IFM, Alexander T, Alton AK, Ave M, Back HO, Batignani G, Biery K, Bocci V, Bonivento WM, Bottino B, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Campos MD, Canci N, Caravati M, Cargioli N, Cariello M, Carlini M, Cataudella V, Cavalcante P, Cavuoti S, Chashin S, Chepurnov A, Cicalò C, Covone G, D'Angelo D, Davini S, De Candia A, De Cecco S, De Filippis G, De Rosa G, Derbin AV, Devoto A, D'Incecco M, Dionisi C, Dordei F, Downing M, D'Urso D, Fiorillo G, Franco D, Gabriele F, Galbiati C, Ghiano C, Giganti C, Giovanetti GK, Goretti AM, Grilli di Cortona G, Grobov A, Gromov M, Guan M, Gulino M, Hackett BR, Herner K, Hessel T, Hosseini B, Hubaut F, Hungerford EV, Ianni A, Ippolito V, Keeter K, Kendziora CL, Kimura M, Kochanek I, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lissia M, Longo G, Lychagina O, Machulin IN, Mapelli LP, Mari SM, Maricic J, Messina A, Milincic R, Monroe J, Morrocchi M, Mougeot X, Muratova VN, Musico P, Nozdrina AO, Oleinik A, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pelczar K, Pelliccia N, Piacentini S, Pocar A, Poehlmann DM, Pordes S, Poudel SS, Pralavorio P, Price DD, Ragusa F, Razeti M, Razeto A, Renshaw AL, Rescigno M, Rode J, Romani A, Sablone D, Samoylov O, Sands W, Sanfilippo S, Sandford E, Savarese C, Schlitzer B, Semenov DA, Shchagin A, Sheshukov A, Skorokhvatov MD, Smirnov O, Sotnikov A, Stracka S, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Unzhakov EV, Vishneva A, Vogelaar RB, Wada M, Wang H, Wang Y, Westerdale S, Wojcik MM, Xiao X, Yang C, Zuzel G. Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50. Phys Rev Lett 2023; 130:101002. [PMID: 36962032 DOI: 10.1103/physrevlett.130.101002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
We present a search for dark matter particles with sub-GeV/c^{2} masses whose interactions have final state electrons using the DarkSide-50 experiment's (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section σ[over ¯]_{e}, the axioelectric coupling constant g_{Ae}, and the dark photon kinetic mixing parameter κ. We also set the first dark matter direct-detection constraints on the mixing angle |U_{e4}|^{2} for keV/c^{2} sterile neutrinos.
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Affiliation(s)
- P Agnes
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - I F M Albuquerque
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - T Alexander
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - A K Alton
- Physics Department, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - M Ave
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - H O Back
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - G Batignani
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Biery
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - V Bocci
- INFN Sezione di Roma, Roma 00185, Italy
| | | | - B Bottino
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - S Bussino
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - M Cadeddu
- INFN Cagliari, Cagliari 09042, Italy
| | - M Cadoni
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - F Calaprice
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - M D Campos
- Physics, Kings College London, Strand, London WC2R 2LS, United Kingdom
| | - N Canci
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | | | | | - M Carlini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - V Cataudella
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - P Cavalcante
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Cavuoti
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S Chashin
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - A Chepurnov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - C Cicalò
- INFN Cagliari, Cagliari 09042, Italy
| | - G Covone
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D D'Angelo
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - S Davini
- INFN Genova, Genova 16146, Italy
| | - A De Candia
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - S De Cecco
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - G De Filippis
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - G De Rosa
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - A V Derbin
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Devoto
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - M D'Incecco
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Dionisi
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - F Dordei
- INFN Cagliari, Cagliari 09042, Italy
| | - M Downing
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D D'Urso
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - G Fiorillo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - D Franco
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - C Galbiati
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - C Ghiano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - C Giganti
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - G K Giovanetti
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A M Goretti
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Grobov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - M Gromov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M Guan
- Institute of High Energy Physics, Beijing 100049, China
| | - M Gulino
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Engineering and Architecture Faculty, Università di Enna Kore, Enna 94100, Italy
| | - B R Hackett
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - K Herner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Hessel
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | | | - F Hubaut
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - E V Hungerford
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - An Ianni
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - K Keeter
- School of Natural Sciences, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - C L Kendziora
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Kimura
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - I Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - D Korablev
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - G Korga
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A Kubankin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - M Kuss
- INFN Pisa, Pisa 56127, Italy
| | - M La Commara
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - M Lai
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - X Li
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M Lissia
- INFN Cagliari, Cagliari 09042, Italy
| | - G Longo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - O Lychagina
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - I N Machulin
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - L P Mapelli
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S M Mari
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - J Maricic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - A Messina
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - R Milincic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - J Monroe
- Department of Physics, Royal Holloway University of London, Egham TW20 0EX, United Kingdom
| | - M Morrocchi
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - X Mougeot
- Université Paris-Saclay, CEA, List, Laboratoire National Henri Becquerel (LNE-LNHB), F-91120 Palaiseau, France
| | - V N Muratova
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - P Musico
- INFN Genova, Genova 16146, Italy
| | - A O Nozdrina
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A Oleinik
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - F Ortica
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - L Pagani
- Department of Physics, University of California, Davis, California 95616, USA
| | - M Pallavicini
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - L Pandola
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - E Pantic
- Department of Physics, University of California, Davis, California 95616, USA
| | - E Paoloni
- INFN Pisa, Pisa 56127, Italy
- Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy
| | - K Pelczar
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - N Pelliccia
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | | | - A Pocar
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D M Poehlmann
- Department of Physics, University of California, Davis, California 95616, USA
| | - S Pordes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S S Poudel
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - P Pralavorio
- Centre de Physique des Particules de Marseille, Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France
| | - D D Price
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - F Ragusa
- Physics Department, Università degli Studi di Milano, Milano 20133, Italy
- INFN Milano, Milano 20133, Italy
| | - M Razeti
- INFN Cagliari, Cagliari 09042, Italy
| | - A Razeto
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A L Renshaw
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | | | - J Rode
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - A Romani
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - D Sablone
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - O Samoylov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - W Sands
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - S Sanfilippo
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - E Sandford
- The University of Manchester, Manchester M13 9PL, United Kingdom
| | - C Savarese
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - B Schlitzer
- Department of Physics, University of California, Davis, California 95616, USA
| | - D A Semenov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Shchagin
- Radiation Physics Laboratory, Belgorod National Research University, Belgorod 308007, Russia
| | - A Sheshukov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M D Skorokhvatov
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - O Smirnov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - A Sotnikov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - Y Suvorov
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - R Tartaglia
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Tonazzo
- APC, Université de Paris, CNRS, Astroparticule et Cosmologie, Paris F-75013, France
| | - E V Unzhakov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - A Vishneva
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | | | - M Wada
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
- AstroCeNT, Nicolaus Copernicus Astronomical Center, 00-614 Warsaw, Poland
| | - H Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - Y Wang
- Institute of High Energy Physics, Beijing 100049, China
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - S Westerdale
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M M Wojcik
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - X Xiao
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - C Yang
- Institute of High Energy Physics, Beijing 100049, China
| | - G Zuzel
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
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6
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Riccio A, Santopolo S, Rossi A, Piacentini S, Rossignol JF, Santoro MG. Impairment of SARS-CoV-2 spike glycoprotein maturation and fusion activity by nitazoxanide: an effect independent of spike variants emergence. Cell Mol Life Sci 2022; 79:227. [PMID: 35391601 PMCID: PMC8989121 DOI: 10.1007/s00018-022-04246-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 12/12/2022]
Abstract
SARS-CoV-2, the causative agent of COVID-19, has caused an unprecedented global health crisis. The SARS-CoV-2 spike, a surface-anchored trimeric class-I fusion glycoprotein essential for viral entry, represents a key target for developing vaccines and therapeutics capable of blocking virus invasion. The emergence of SARS-CoV-2 spike variants that facilitate virus spread and may affect vaccine efficacy highlights the need to identify novel antiviral strategies for COVID-19 therapy. Here, we demonstrate that nitazoxanide, an antiprotozoal agent with recognized broad-spectrum antiviral activity, interferes with SARS-CoV-2 spike maturation, hampering its terminal glycosylation at an endoglycosidase H-sensitive stage. Engineering multiple SARS-CoV-2 variant-pseudoviruses and utilizing quantitative cell–cell fusion assays, we show that nitazoxanide-induced spike modifications hinder progeny virion infectivity as well as spike-driven pulmonary cell–cell fusion, a critical feature of COVID-19 pathology. Nitazoxanide, being equally effective against the ancestral SARS-CoV-2 Wuhan-spike and different emerging variants, including the Delta variant of concern, may represent a useful tool in the fight against COVID-19 infections.
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Affiliation(s)
- Anna Riccio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Silvia Santopolo
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Antonio Rossi
- Institute of Translational Pharmacology, CNR, Rome, Italy
| | - Sara Piacentini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - M Gabriella Santoro
- Department of Biology, University of Rome Tor Vergata, Rome, Italy. .,Institute of Translational Pharmacology, CNR, Rome, Italy.
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7
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Mancini C, Giorgio E, Rubegni A, Pradotto L, Bagnoli S, Rubino E, Prontera P, Cavalieri S, Di Gregorio E, Ferrero M, Pozzi E, Riberi E, Ferrero P, Nigro P, Mauro A, Zibetti M, Tessa A, Barghigiani M, Antenora A, Sirchia F, Piacentini S, Silvestri G, De Michele G, Filla A, Orsi L, Santorelli FM, Brusco A. Prevalence and phenotype of the c.1529C>T SPG7 variant in adult-onset cerebellar ataxia in Italy. Eur J Neurol 2018; 26:80-86. [PMID: 30098094 DOI: 10.1111/ene.13768] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 02/09/2018] [Accepted: 08/07/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE Hereditary ataxias are heterogeneous groups of neurodegenerative disorders, characterized by cerebellar syndromes associated with dysarthria, oculomotor and corticospinal signs, neuropathy and cognitive impairment. Recent reports have suggested mutations in the SPG7 gene, causing the most common form of autosomal recessive spastic paraplegia (MIM#607259), as a main cause of ataxias. The majority of described patients were homozygotes or compound heterozygotes for the c.1529C>T (p.Ala510Val) change. We screened a cohort of 895 Italian patients with ataxia for p.Ala510Val in order to define the prevalence and genotype-phenotype correlation of this variant. METHODS We set up a rapid assay for c.1529C>T using restriction enzyme analysis after polymerase chain reaction amplification. We confirmed the diagnosis with Sanger sequencing. RESULTS We identified eight homozygotes and 13 compound heterozygotes, including two novel variants affecting splicing. Mutated patients showed a pure cerebellar ataxia at onset, evolving in mild spastic ataxia (alternatively) associated with dysarthria (~80% of patients), urinary urgency (~30%) and pyramidal signs (~70%). Comparing homozygotes and compound heterozygotes, we noted a difference in age at onset and Scale for the Assessment and Rating of Ataxia score between the two groups, supporting an earlier and more severe phenotype in compound heterozygotes versus homozygotes. CONCLUSIONS The SPG7 c.1529C>T (p.Ala510Val) mutants accounted for 2.3% of cerebellar ataxia cases in Italy, suggesting that this variant should be considered as a priority test in the presence of late-onset pure ataxia. Moreover, the heterozygous/homozygous genotype appeared to predict the onset of clinical manifestation and disease progression.
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Affiliation(s)
- C Mancini
- Department of Medical Sciences, University of Torino, Turin, Italy
| | - E Giorgio
- Department of Medical Sciences, University of Torino, Turin, Italy
| | - A Rubegni
- Molecular Medicine, IRCCS Fondazione Stella Maris, Pisa, Italy
| | - L Pradotto
- Division of Neurology and Neurorehabilitation, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, Piancavallo, Italy
| | - S Bagnoli
- Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Florence, Italy
| | - E Rubino
- Department of Neuroscience and Mental Health, Città della Salute e della Scienza University Hospital, Turin, Italy
| | - P Prontera
- Medical Genetics Unit, Hospital S. Maria della Misericordia, Perugia, Italy
| | - S Cavalieri
- Department of Medical Sciences, University of Torino, Turin, Italy
| | - E Di Gregorio
- Department of Medical Sciences, University of Torino, Turin, Italy
| | - M Ferrero
- Department of Medical Sciences, University of Torino, Turin, Italy
| | - E Pozzi
- Department of Medical Sciences, University of Torino, Turin, Italy
| | - E Riberi
- Department of Medical Sciences, University of Torino, Turin, Italy
| | - P Ferrero
- Department of Neuroscience and Mental Health, Città della Salute e della Scienza University Hospital, Turin, Italy
| | - P Nigro
- Clinica Neurologica, Azienda Ospedaliera - Università di Perugia, Perugia, Italy
| | - A Mauro
- Department of Neurosciences, University of Torino, Turin, Italy
| | - M Zibetti
- Department of Neuroscience and Mental Health, Città della Salute e della Scienza University Hospital, Turin, Italy
| | - A Tessa
- Molecular Medicine, IRCCS Fondazione Stella Maris, Pisa, Italy
| | - M Barghigiani
- Molecular Medicine, IRCCS Fondazione Stella Maris, Pisa, Italy
| | - A Antenora
- Department of Neurosciences, Federico II University, Naples, Italy
| | - F Sirchia
- Institute for Maternal and Child Health - IRCCS Burlo Garofolo, Trieste, Italy
| | - S Piacentini
- Department of Neuroscience, Psychology, Drug Research and Child's Health, University of Florence, Florence, Italy
| | - G Silvestri
- Fondazione Policlinico Universitario IRCCS, A. Gemelli, Rome, Italy.,Università Cattolica del Sacro Cuore, Rome, Italy
| | - G De Michele
- Department of Neurosciences, Federico II University, Naples, Italy
| | - A Filla
- Department of Neurosciences, Federico II University, Naples, Italy
| | - L Orsi
- Department of Neuroscience and Mental Health, Città della Salute e della Scienza University Hospital, Turin, Italy
| | - F M Santorelli
- Molecular Medicine, IRCCS Fondazione Stella Maris, Pisa, Italy
| | - A Brusco
- Department of Medical Sciences, University of Torino, Turin, Italy.,Medical Genetics Unit, Città della Salute e della Scienza Hospital, Turin, Italy
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La Frazia S, Piacentini S, Riccio A, Rossignol JF, Santoro MG. The second-generation thiazolide haloxanide is a potent inhibitor of avian influenza virus replication. Antiviral Res 2018; 157:159-168. [PMID: 29908209 DOI: 10.1016/j.antiviral.2018.06.008] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/07/2018] [Accepted: 06/11/2018] [Indexed: 10/14/2022]
Abstract
The emergence of new avian influenza virus (AIV) strains able to infect humans represents a serious threat to global human health. In addition to surveillance and vaccine development, antiviral therapy remains crucial for AIV control; however, the increase in drug-resistant AIV strains underscores the need for novel approaches to anti-influenza chemotherapy. We have previously shown that the thiazolide anti-infective nitazoxanide (NTZ) inhibits influenza A/PuertoRico/8/1934(H1N1) virus replication, and this effect was associated with inhibition of viral hemagglutinin (HA) maturation. Herein we investigated the activity of the second-generation thiazolide haloxanide (HLN) against H5N9, H7N1 and H1N1 AIV infection in vitro, and explored the mechanism of the antiviral action. Using the A/chicken/Italy/9097/1997(H5N9) AIV as a model, we show that HLN and its precursor p-haloxanide are more effective than NTZ against AIV, with IC50 ranging from 0.03 to 0.1 μg/ml, and SI ranging from 200 to >700, depending on the multiplicity of infection. Haloxanide did not affect AIV entry into target cells and did not cause a general inhibition of viral protein expression, whereas it acted at post-translational level by inhibiting HA maturation at a stage preceding resistance to endoglycosidase-H digestion. Importantly, this effect was independent of the AIV-HA subtype and the host cell. Immunomicroscopy and receptor-binding studies confirmed that HLN-induced alterations impair AIV-HA trafficking to the host cell plasma membrane, a key step for viral morphogenesis. The results indicate that haloxanide could provide a new tool for treatment of avian influenza virus infections.
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Affiliation(s)
- Simone La Frazia
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Sara Piacentini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Anna Riccio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Jean-Francois Rossignol
- Division of Infectious Diseases and International Medicine, University of South Florida College of Medicine, Tampa, FL, USA; Romark Laboratories, LC, Tampa, FL, USA
| | - M Gabriella Santoro
- Department of Biology, University of Rome Tor Vergata, Rome, Italy; Institute of Translational Pharmacology, CNR, Rome, Italy.
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Iorio A, Velocci M, Graziano ME, Piacentini S, Polimanti R, Manfellotto D, Fuciarelli M. GPX1*Pro198Leu AND GPX3 rs2070593 as genetic risk markers for Italian asthmatic patients. Clin Exp Pharmacol Physiol 2016; 43:277-9. [PMID: 26662676 DOI: 10.1111/1440-1681.12522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrea Iorio
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Marianna Velocci
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | | | - Sara Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Renato Polimanti
- Department of Psychiatry, Yale University School of Medicine, West Haven, CT, USA
| | - Dario Manfellotto
- Clinical Pathophysiology Center, AFaR Division, Fatebenefratelli Foundation, "San Giovanni Calibita" Fatebenefratelli Hospital, Rome, Italy
| | - Maria Fuciarelli
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.
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10
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Bima C, Chiloiro S, Mormando M, Piacentini S, Bracaccia E, Giampietro A, Tartaglione L, Bianchi A, De Marinis L. Understanding the effect of acromegaly on the human skeleton. Expert Rev Endocrinol Metab 2016; 11:263-270. [PMID: 30058934 DOI: 10.1080/17446651.2016.1179108] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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] [Indexed: 10/21/2022]
Abstract
Acromegaly, caused in most cases by Growth Hormone (GH)-secreting pituitary adenomas, is characterized by increased skeletal growth and enlargement of the soft tissue, because GH and its effector Insulin-like Growth factor-1 are important regulators of bone homeostasis and have a central role in the longitudinal bone growth and maintenance of bone mass. Areas covered: Despite the anabolic effect of these hormones is well known, as a result of the stimulation of bone turnover and especially of bone formation, many acromegalic patients are suffering from a form of secondary osteoporosis with increased risk of fractures. Expert commentary: In this review, we summarize the pathophysiology, diagnosis, clinical picture, disease course and management of skeletal complications of acromegaly, focusing in particular on secondary osteoporosis and fracture risk in acromegaly.
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Affiliation(s)
- C Bima
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - S Chiloiro
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - M Mormando
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - S Piacentini
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - E Bracaccia
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - A Giampietro
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - L Tartaglione
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - A Bianchi
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
| | - L De Marinis
- a Pituitary Unit, Department of Endocrinology , Catholic University of "Sacred Heart", School of Medicine , Rome , Italy
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11
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Iorio A, Polimanti R, Calandro M, Graziano ME, Piacentini S, Bucossi S, Squitti R, Lazzarin N, Scano G, Limbruno GM, Manfellotto D, Fuciarelli M. Explorative genetic association study of GSTT2B copy number variant in complex disease risks. Ann Hum Biol 2015. [PMID: 26207597 DOI: 10.3109/03014460.2015.1049206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Glutathione S-transferases (GSTs) are the main phase II enzymes involved in cellular detoxification. Through phase I and phase II detoxification reactions, the cell is able to detoxify endogenous and exogenous toxic compounds. AIMS This study focused attention on the GSTT2B copy number variant (CNV) in order to explore its involvement in the genetic pre-disposition to asthma, Alzheimer's disease (AD), allergic rhinitis (AR), essential hypertension (EH), hypothyroidism and recurrent miscarriage (RM). METHODS The study population consists of 1225 individuals divided into six case-control groups. The genotyping of the GSTT2B CNV was performed by using a duplex-PCR. Odds Ratios (ORs) were calculated, adjusting for the confounding variables, to estimate the association between GSTT2B CNV and the disease status. RESULTS The χ(2)-test and ORs did not show any association between this genetic marker and pathological phenotypes. CONCLUSION The data highlights that GSTT2B CNV is not associated with the investigated complex diseases in Italian patients. However, further investigations are necessary to replicate these findings in larger sample sizes and to explore other health-related phenotypes.
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Affiliation(s)
- Andrea Iorio
- a Department of Biology , University of Rome 'Tor Vergata' , Rome , Italy
| | - Renato Polimanti
- b Department of Psychiatry , Yale University School of Medicine , West Haven , CT , USA
| | - Melania Calandro
- a Department of Biology , University of Rome 'Tor Vergata' , Rome , Italy
| | | | - Sara Piacentini
- a Department of Biology , University of Rome 'Tor Vergata' , Rome , Italy
| | - Serena Bucossi
- c Department of Clinical Neuroscience , AFaR - 'San Giovanni Calibita' Fatebenefratelli Hospital , Isola Tiberina , Rome , Italy .,d Department of Neurology , 'Campus Bio-Medico' University , Rome , Italy
| | - Rosanna Squitti
- c Department of Clinical Neuroscience , AFaR - 'San Giovanni Calibita' Fatebenefratelli Hospital , Isola Tiberina , Rome , Italy .,e Laboratorio Neurodegenerazione , IRCCS San Raffaele Pisana , Rome , Italy
| | | | - Giuseppina Scano
- a Department of Biology , University of Rome 'Tor Vergata' , Rome , Italy
| | - Giancarlo Maria Limbruno
- g Clinical Pathology Department , AFaR - 'San Giovanni Calibita' Fatebenefratelli Hospital , Rome , Italy
| | | | - Maria Fuciarelli
- a Department of Biology , University of Rome 'Tor Vergata' , Rome , Italy
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12
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Amami P, Dekker I, Piacentini S, Ferré F, Romito LM, Franzini A, Foncke EMJ, Albanese A. Impulse control behaviours in patients with Parkinson's disease after subthalamic deep brain stimulation: de novo cases and 3-year follow-up. J Neurol Neurosurg Psychiatry 2015; 86:562-4. [PMID: 25012201 DOI: 10.1136/jnnp-2013-307214] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [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: 11/14/2013] [Accepted: 06/14/2014] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To document the occurrence of impulse control behaviours (ICBs) in patients with Parkinson's disease after 3 years of continuous deep brain stimulation (DBS) of the subthalamic nucleus (STN). METHODS Detailed neurological and ICB assessments were performed before STN DBS and up to 3 years after implant. RESULTS 13 out of 56 patients (23.2%) had ICBs at baseline; they took higher doses of dopamine agonists (DAA). Three years after implant 11 had fully remitted with a 60.8% reduction of DAA medication; the remaining two, who had a similar medication reduction, had only compulsive eating, having recovered from hypersexuality. Six of the 43 patients without ICBs at baseline (14%) developed transient de novo ICBs after implant; none of them had ICBs at the 3-year observation. CONCLUSIONS ICBs were abolished in patients 3 years after STN DBS and DAA dosages were lowered. New ICBs may occur after implant and are transient in most cases. Compulsive eating may be specifically related to STN stimulation.
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Affiliation(s)
- P Amami
- Neurologia I, Fondazione Istituto Neurologico Carlo Besta, Milano, Italy
| | - I Dekker
- Department of Neurology, VU University Medical Centre, Amsterdam, The Netherlands
| | - S Piacentini
- Neurologia I, Fondazione Istituto Neurologico Carlo Besta, Milano, Italy
| | - F Ferré
- Neurologia I, Fondazione Istituto Neurologico Carlo Besta, Milano, Italy
| | - L M Romito
- Neurologia I, Fondazione Istituto Neurologico Carlo Besta, Milano, Italy
| | - A Franzini
- Neurochirurgia III, Fondazione Istituto Neurologico Carlo Besta, Milano, Italy
| | - E M J Foncke
- Department of Neurology, VU University Medical Centre, Amsterdam, The Netherlands
| | - A Albanese
- Neurologia I, Fondazione Istituto Neurologico Carlo Besta, Milano, Italy Istituto di Neurologia, Università Cattolica del Sacro Cuore, Milano, Italy
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Sorbi S, Bracco L, Piacentini S, Morandi A, Amaducci L. Chemical lateralization in human temporal cortex. Monogr Neural Sci 2015; 11:157-62. [PMID: 6330540 DOI: 10.1159/000409205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Iacovazzo D, Lugli F, Piacentini S, Bianchi A, Inzani F, Larocca LM, Pagano L, De Marinis L. Systemic mastocytosis mimicking carcinoid syndrome. Endocrine 2015; 48:718-9. [PMID: 24711221 DOI: 10.1007/s12020-014-0253-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 03/25/2014] [Indexed: 11/29/2022]
Affiliation(s)
- D Iacovazzo
- Endocrinology, Catholic University, Policlinico "A. Gemelli", Largo A. Gemelli, 8, 00168, Rome, Italy,
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15
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Piacentini S, Polimanti R, Iorio A, Cortesi M, Papa F, Rongioletti M, Liumbruno GM, Manfellotto D, Fuciarelli M. GSTA1*-69C/T and GSTO2*N142D as asthma- and allergy-related risk factors in Italian adult patients. Clin Exp Pharmacol Physiol 2014; 41:180-4. [PMID: 24471578 DOI: 10.1111/1440-1681.12201] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 11/07/2013] [Revised: 01/16/2014] [Accepted: 01/18/2014] [Indexed: 12/12/2022]
Abstract
1. Asthma and allergies are characterized by variable and subjective symptoms influenced by many genes, molecular mechanisms and environmental factors. The presence of inflammation and oxidative stress in the airways are important biochemical features of asthma and respiratory allergies. Glutathione S-transferase (GSTs) enzymes play an important role in cellular protection against inflammation, and functional genetic polymorphisms in GST genes show a significant association with asthma and allergy risk. Specifically, our previous study on asthmatic children highlighted GSTA1 and GSTO2 as novel susceptibility loci for asthma. 2. In the present study we focused our attention on GSTA1*-69C/T (rs3957357) and GSTO2*N142D (rs156697) polymorphisms to confirm our previous results in an independent adult study population and to clarify whether GSTA1 and GSTO2 gene polymorphisms are involved in a non-discriminative pathway towards asthma and respiratory allergy. 3. To accomplish this, we recruited 103 patients with respiratory allergies, 199 patients with asthma and 200 healthy controls. Genomic DNA extracted from buccal cells was screened for GSTA1*-69C/T and GSTO2*N142D single nucleotide polymorphisms. 4. The GSTA1*-69T and GSTO2*D142 variants are both associated with a significantly increased risk of asthma, whereas only GSTA1*-69C/T is significantly associated with allergies. These outcomes confirm the involvement of GSTO2 loci in asthma and suggest that GSTA1 is a common risk factor for asthma and allergies.
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Affiliation(s)
- Sara Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
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Nacmias B, Piaceri I, Bagnoli S, Tedde A, Piacentini S, Sorbi S. Genetics of Alzheimer's Disease and Frontotemporal Dementia. Curr Mol Med 2014; 14:993-1000. [PMID: 25323872 DOI: 10.2174/1566524014666141010152143] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 08/20/2013] [Revised: 03/25/2014] [Accepted: 07/25/2014] [Indexed: 11/22/2022]
Abstract
The genetics of neurodegenerative diseases has an important role to clarify the pathogenetic mechanism, the diagnosis and finally the therapeutic and ethical implications. Moreover, the genetic approach to the study of the main clinical forms of dementia (Alzheimer's disease-AD and Frontotemporal Dementia-FTD) suggests clinical guidelines for helping families to navigate through these complexities. AD and FTD are multifactorial, genetically complex diseases involving many candidate genes. Mutations in three genes (i.e. Amyloid Precursor Protein, APP; presenilin 1, PSEN1; presenilin 2, PSEN2) have been linked to 50% of all familial forms of AD (FAD). Genome wide association studies (GWAS) have involved an increasing number of genes with a possible role in the disease pathogenesis. Up to now, the genetics of familial forms of FTD is related to 7 genes: the microtubule-associated protein tau (MAPT) progranulin (GRN), the valosin-containing protein (VCP), chromatin-modifying 2B (CHMP2B), the TARDNA binding protein 43 encoding gene (TARBDP), fused in sarcoma (FUS) and the last hexanucleotide expansion repeats in the open reading frame of chromosome 9 (C9orf72). Pre-test counseling and the identification of genetic defects are important in both patients and asymptomatic at risk family members.
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Affiliation(s)
- B Nacmias
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Neuroscience, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy
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Nanetti L, Ferraro S, Bertolino N, Piacentini S, Mandelli M, Ghielmetti F, Castaldo A, Gellera C, Nigri A, Taroni F, Bruzzone M, Di Donato S, Grisoli M, Mariotti C. E25 Fmri Signal Changes In Frontal Cortex Correlates With Years-to-disease-onset In A Group Of Young Premanifest Huntington Disease Subjects. J Neurol Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.128] [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: 11/04/2022]
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Iorio A, Polimanti R, Piacentini S, Liumbruno GM, Manfellotto D, Fuciarelli M. Deletion polymorphism ofGSTT1gene as protective marker for allergic rhinitis. The Clinical Respiratory Journal 2014; 9:481-6. [DOI: 10.1111/crj.12170] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 05/04/2014] [Accepted: 05/29/2014] [Indexed: 12/21/2022]
Affiliation(s)
- Andrea Iorio
- Department of Biology; University of Rome ‘Tor Vergata’; Rome Italy
- Clinical Pathophysiology Center; AFaR - ‘San Giovanni Calibita’ Fatebenefratelli Hospital; Rome Italy
| | - Renato Polimanti
- Department of Biology; University of Rome ‘Tor Vergata’; Rome Italy
| | - Sara Piacentini
- Department of Biology; University of Rome ‘Tor Vergata’; Rome Italy
| | | | - Dario Manfellotto
- Clinical Pathophysiology Center; AFaR - ‘San Giovanni Calibita’ Fatebenefratelli Hospital; Rome Italy
| | - Maria Fuciarelli
- Department of Biology; University of Rome ‘Tor Vergata’; Rome Italy
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Polimanti R, Piacentini S, Iorio A, De Angelis F, Kozlov A, Novelletto A, Fuciarelli M. Haplotype differences for copy number variants in the 22q11.23 region among human populations: a pigmentation-based model for selective pressure. Eur J Hum Genet 2014; 23:116-23. [PMID: 24667780 DOI: 10.1038/ejhg.2014.47] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 02/13/2014] [Accepted: 02/19/2014] [Indexed: 12/17/2022] Open
Abstract
Two gene clusters are tightly linked in a narrow region of chromosome 22q11.23: the macrophage migration inhibitory factor (MIF) gene family and the glutathione S-transferase theta class. Within 120 kb in this region, two 30-kb deletions reach high frequencies in human populations. This gives rise to four haplotypic arrangements, which modulate the number of genes in both families. The variable patterns of linkage disequilibrium (LD) between these copy number variants (CNVs) in diverse human populations remain poorly understood. We analyzed 2469 individuals belonging to 27 human populations with different ethnic origins. Then we correlated the genetic variability of 22q11.23 CNVs with environmental variables. We confirmed an increasing strength of LD from Africa to Asia and to Europe. Further, we highlighted strongly significant correlations between the frequency of one of the haplotypes and pigmentation-related variables: skin color (R(2)=0.675, P<0.001), distance from the equator (R(2)=0.454, P<0.001), UVA radiation (R(2)=0.439, P<0.001), and UVB radiation (R(2)=0.313, P=0.002). The fact that all MIF-related genes are retained on this haplotype and the evidences gleaned from experimental systems seem to agree with the role of MIF-related genes in melanogenesis. As such, we propose a model that explains the geographic and ethnic distribution of 22q11.23 CNVs among human populations, assuming that MIF-related gene dosage could be associated with adaptation to low UV radiation.
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Affiliation(s)
- Renato Polimanti
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Sara Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Andrea Iorio
- Clinical Pathophysiology Center, AFaR - 'San Giovanni Calibita' Fatebenefratelli Hospital, Rome, Italy
| | - Flavio De Angelis
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Andrey Kozlov
- Institute and Museum of Anthropology, M. Lomonosov State University, Moscow, Russia
| | - Andrea Novelletto
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Maria Fuciarelli
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
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Iorio A, Piacentini S, Polimanti R, De Angelis F, Calderon R, Fuciarelli M. Functional variability of glutathione S-transferases in basque populations. Am J Hum Biol 2014; 26:361-6. [DOI: 10.1002/ajhb.22520] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/11/2014] [Accepted: 01/21/2014] [Indexed: 01/12/2023] Open
Affiliation(s)
- Andrea Iorio
- Department of Biology; University of Rome “Tor Vergata,”; Rome Italy
- Clinical Pathophysiology Center; AFaR-“San Giovanni Calibita” Fatebenefratelli Hospital; Isola Tiberina Rome Italy
| | - Sara Piacentini
- Department of Biology; University of Rome “Tor Vergata,”; Rome Italy
| | - Renato Polimanti
- Department of Biology; University of Rome “Tor Vergata,”; Rome Italy
| | - Flavio De Angelis
- Department of Biology; University of Rome “Tor Vergata,”; Rome Italy
| | - Rosario Calderon
- Departamento de Zoologia y Antropologìa Fìsica; Facultad de Biologìa, Universidad Complutense; Madrid Spain
| | - Maria Fuciarelli
- Department of Biology; University of Rome “Tor Vergata,”; Rome Italy
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Polimanti R, Iorio A, Piacentini S, Manfellotto D, Fuciarelli M. Human pharmacogenomic variation of antihypertensive drugs: from population genetics to personalized medicine. Pharmacogenomics 2014; 15:157-67. [DOI: 10.2217/pgs.13.231] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Aim: To investigate the human pharmacogenetic variation related to antihypertensive drugs, providing a survey of functional interpopulation differences in hypertension pharmacogenes. Materials & methods: The study was divided into two stages. In the first stage, we analyzed 1249 variants located in 57 hypertension pharmacogenes. This first-stage analysis confirmed that geographic origin strongly affects hypertension pharmacogenomic variation and that 31 pharmacogenes are geographically differentiated. In the second stage, we focused our attention on the ethnic-differentiated pharmacogenes, investigating 55,521 genetic variants. In silico analyses were performed to predict the effect of genetic variation. Results: Our analyses indicated functional interpopulation differences, suggesting insight into the mechanisms of antihypertensive drug response. Moreover, our data suggested that rare variants mainly determine the functionality of genes related to antihypertensive drugs. Conclusion: Our study provided important knowledge about the genetics of the antihypertensive drug response, suggesting that next-generation sequencing technologies may develop reliable pharmacogenetic tests for antihypertensive drugs. Original submitted 19 September 2013; Revision submitted 14 November 2013
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Affiliation(s)
- Renato Polimanti
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica 1, Rome, Italy
| | - Andrea Iorio
- Clinical Pathophysiology Center, AFaR – “San Giovanni Calibita” Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Sara Piacentini
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica 1, Rome, Italy
| | - Dario Manfellotto
- Clinical Pathophysiology Center, AFaR – “San Giovanni Calibita” Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Maria Fuciarelli
- Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica 1, Rome, Italy
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Piacentini S, Polimanti R, De Angelis F, Iorio A, Fuciarelli M. Phenotype versus Genotype Methods for Copy Number Variant Analysis of Glutathione S-Transferases M1. Ann Hum Genet 2013; 77:409-15. [DOI: 10.1111/ahg.12025] [Citation(s) in RCA: 5] [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: 02/06/2013] [Accepted: 04/09/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Sara Piacentini
- Department of Biology; University of Rome “Tor Vergata”; Rome Italy
| | - Renato Polimanti
- Department of Biology; University of Rome “Tor Vergata”; Rome Italy
| | | | - Andrea Iorio
- Clinical Pathophysiology Center; AFaR-“San Giovanni Calibita” Fatebenefratelli Hospital; Rome Italy
| | - Maria Fuciarelli
- Department of Biology; University of Rome “Tor Vergata”; Rome Italy
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Polimanti R, Piacentini S, Manfellotto D, Fuciarelli M. Human genetic variation of CYP450 superfamily: analysis of functional diversity in worldwide populations. Pharmacogenomics 2013; 13:1951-60. [PMID: 23215887 DOI: 10.2217/pgs.12.163] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
AIM The present study aimed to investigate the human genetic diversity of the CYP450 superfamily in order to identify functional interethnic differences and analyze the role of CYP450 enzymes in human adaptation. MATERIALS & METHODS A computational analysis of genetic and functional differences of the 57 CYP450 genes was performed using the Human Genome Diversity Project and HapMap data; comprising approximately 1694 individuals belonging to 62 human populations. RESULTS Twenty-six CYP450 SNPs with F-statistics significantly different than the general distribution were identified. Some showed high differentiation among human populations, suggesting that functional interethnic differences may be present. Indeed, some of these are significantly associated with drug response or disease risk. Furthermore, our data highlighted that TBXAS1 and genes in CYP3A cluster may have a role in some processes of human adaptation. CONCLUSION Our study provided an analysis of genetic diversity of CYP450 superfamily, identifying functional differences among ethnic groups and their related clinical phenotypes.
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Affiliation(s)
- Renato Polimanti
- Department of Biology, University of Rome, Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy.
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Piacentini S, Polimanti R, Simonelli I, Donno S, Pasqualetti P, Manfellotto D, Fuciarelli M. Glutathione S-transferase polymorphisms, asthma susceptibility and confounding variables: a meta-analysis. Mol Biol Rep 2013; 40:3299-313. [PMID: 23307299 DOI: 10.1007/s11033-012-2405-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 12/18/2012] [Indexed: 11/28/2022]
Abstract
Oxidative stress is one of the main risk factors for asthma development. Glutathione S-transferases play an important role in antioxidant defences and may influence asthma susceptibility. In particular, GSTM1 and GSTT1 positive/null genotypes and the GSTP1 Ile105 Val polymorphism have been analyzed in a number of genetic association studies, with conflicting outcomes. Two previous meta-analyses have attempted to clarify the associations between GST genes and asthma, but these studies have also showed contrasting results. Our aim was to perform a meta-analysis that included independent genetic association studies on GSTM1, GSTP1, and GSTT1, evaluating also the effect of potential confounding variables (i.e. ethnicity, population age, and urbanization). Systematic review and meta-analysis of the effects of GST genes on asthma were conducted. The meta-analyses were performed using a fixed or, where appropriate, random effects model. The meta-analysis of the GSTM1 (n = 35), GSTT1 (n = 31) and GSTP1 (n = 28) studies suggests that no significant associations with asthma susceptibility were observed for GSTM1 and GSTP1 gene polymorphisms, whereas a significant outcome was detected for the GSTT1 positive/null genotype (pooled OR = 1.33, 95 %CI = 1.10-1.60). However, high between-study heterogeneity was identified in all the general analyses (p heterogenetity < 0.05). The stratification analysis seems to explain the heterogeneity only in few cases. This picture is probably due to the interactive process of genetics and environment that characterizes disease pathogenesis. Further studies on interactions of GST genes with the potential oxidative stress sources and with other antioxidant genes are needed to explain the role of GST enzymes in asthma.
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Affiliation(s)
- Sara Piacentini
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy
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Piacentini S, Monaci PM, Polimanti R, Manfellotto D, Fuciarelli M. GSTO2*N142D gene polymorphism associated with hypothyroidism in Italian patients. Mol Biol Rep 2012; 40:1967-71. [DOI: 10.1007/s11033-012-2253-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 10/10/2012] [Indexed: 02/04/2023]
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Ghelli E, Pradella S, Romoli AM, Fortunato F, Paganini M, Gallina P, Vannelli G, Piacentini S, Di Lorenzo N, Sorbi S. Q11 Huntington's disease Italian trial in neuro-transplantation: update on 17 patients group. J Neurol Neurosurg Psychiatry 2012. [DOI: 10.1136/jnnp-2012-303524.181] [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: 11/04/2022]
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Polimanti R, Piacentini S, Lazzarin N, Re MA, Manfellotto D, Fuciarelli M. Lack of Association Between Essential Hypertension and GSTO1 Uncommon Genetic Variants in Italian Patients. Genet Test Mol Biomarkers 2012; 16:615-20. [DOI: 10.1089/gtmb.2011.0310] [Citation(s) in RCA: 6] [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] [Indexed: 01/11/2023] Open
Affiliation(s)
- Renato Polimanti
- Department of Biology, University of Rome “Tor Vergata,” Rome, Italy
- Clinical Pathophysiology Center, AFaR, “San Giovanni Calibita” Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Sara Piacentini
- Department of Biology, University of Rome “Tor Vergata,” Rome, Italy
| | - Natalia Lazzarin
- Clinical Pathophysiology Center, AFaR, “San Giovanni Calibita” Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Maria Antonietta Re
- Clinical Pathophysiology Center, AFaR, “San Giovanni Calibita” Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Dario Manfellotto
- Clinical Pathophysiology Center, AFaR, “San Giovanni Calibita” Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Maria Fuciarelli
- Department of Biology, University of Rome “Tor Vergata,” Rome, Italy
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Piacentini S, Polimanti R, Squitti R, Ventriglia M, Cassetta E, Vernieri F, Rossini PM, Manfellotto D, Fuciarelli M. GSTM1 null genotype as risk factor for late-onset Alzheimer's disease in Italian patients. J Neurol Sci 2012; 317:137-40. [DOI: 10.1016/j.jns.2012.01.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 01/23/2012] [Accepted: 01/26/2012] [Indexed: 10/28/2022]
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Polimanti R, Piacentini S, De Angelis F, De Stefano GF, Fuciarelli M. Human GST loci as markers of evolutionary forces: GSTO1*E155del and GSTO1*E208K polymorphisms may be under natural selection induced by environmental arsenic. Dis Markers 2012; 31:231-9. [PMID: 22045430 PMCID: PMC3826775 DOI: 10.3233/dma-2011-0821] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Over the last two decades, significant data has been accumulated linking Glutatione S-Transferases (GSTs) with the development of several diseases. Contemporary studies have demonstrated the impact of ethnicity on GST allele frequencies. The aim is to verify if the variability of GST genes reflects population demographic history or rather selective pressures. GST genes (GSTM1, GSTO1 GSTO2, GSTT1) were analysed in three Ecuadorian populations (Cayapas, n = 114; Colorados, n = 104; African-Ecuadorian, n = 77) and compared with HapMap data. GST SNPs were determined using the PCR-RFLP method while GST null phenotype was determined using a Multiplex PCR. The population relationship achieved using GSTM1 positive/null, GSTO1*A140D, GSTO2*N142D and GSTT1 positive/null are in agreement with the data obtained using neutral polymorphisms: Amerindians are close to Asian populations and African-Ecuadorians to African populations. To what concerns GSTO1*del155 and GSTO1*K208 variants, allele frequencies never exceeded 10%, showing no significant differences in the Ecuadorian groups and in worldwide populations. The features of GSTO1*del155 and GSTO1*K208 variants and their association with arsenic biotransformation deficiency suggest the presence of a selection mechanism towards these loci. In particular, this hypothesis is strengthened by a possible linkage between these alleles and the susceptibility of arsenic-induced male infertility.
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Piacentini S, Polimanti R, Moscatelli B, Re MA, Manfellotto D, Fuciarelli M. Lack of association between GSTM1, GSTP1, and GSTT1 gene polymorphisms and asthma in adult patients from Rome, central Italy. J Investig Allergol Clin Immunol 2012; 22:252-256. [PMID: 22812193] [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: 06/01/2023] Open
Abstract
BACKGROUND Asthma is a complex multifactorial disease that is not yet fully understood. Oxidative stress due to an imbalance between the oxidative forces and the antioxidant defense systems has been implicated in asthma pathogenesis. However, much debate still surrounds the key genetic factors involved in the development of this disease. Candidate genes include the glutathione S-transferases (GSTs). In particular, mu, pi, and theta classes of GSTs play an important role in regulating inflammatory responses. However, few and contradictory data are available on the association between asthma development and GST gene polymorphisms (GSTM1, GSTP1, and GST1). OBJECTIVE To investigate whether GSTM1, GSTT1, and GSTP1 polymorphisms are associated with asthma development. METHODS We recruited 200 unrelated healthy individuals and 199 asthmatic patients from Rome in Central Italy. Genotyping of GSTMI and GSTT1 genes was performed by a multiplex polymerase chain reaction (PCR) while the GSTP1 polymorphism (rs1695) was determined using PCR-restriction fragment length polymorphism analysis. RESULTS Our results suggest that the GST polymorphisms analyzed are not associated with asthma, confirming the uncertain role of GST genes in the development of asthma. CONCLUSIONS Oxidative stress is certainly involved in the development of asthma, and GSTs may therefore influence asthma risk, although, as our results show, their role in pathogenesis remains to be elucidated. Future studies should focus on the interactions of GST genes with the environment and other antioxidant genes to shed light on the role of GSTs in asthma.
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Affiliation(s)
- S Piacentini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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Piacentini S, Polimanti R, Squitti R, Mariani S, Migliore S, Vernieri F, Rossini PM, Manfellotto D, Fuciarelli M. GSTO1*E155del polymorphism associated with increased risk for late-onset Alzheimer's disease: association hypothesis for an uncommon genetic variant. Neurosci Lett 2011; 506:203-7. [PMID: 22100662 DOI: 10.1016/j.neulet.2011.11.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Revised: 10/31/2011] [Accepted: 11/02/2011] [Indexed: 01/22/2023]
Abstract
Glutathione S-transferases are multifunctional enzymes involved in cellular detoxification. A genetic linkage was found between Alzheimer's Disease (AD) and the chromosome 10q, where the GSTO1 and GSTO2 genes are located, leading to the hypothesis that GST Omega class (GSTO) genes may be an AD risk factor. Since it is still controversial, we decided to explore GSTO polymorphisms in Italian cohorts. We analyzed 119 AD patients and 114 healthy controls for the GSTO gene polymorphisms. In particular we investigated two common polymorphisms (GSTO1*A140D, GSTO2*N142D) and two uncommon variants (GSTO1*E155del, GSTO1*E208K) to find loci associated with AD risk. Detection of GSTO1*A140D and GSTO2*N142D was performed by PCR-RFLP, while GSTO1*E155del and GSTO1*E208K were detected using confronting two-pair primer and allele specific PCR, respectively. While GSTO1*A140D, GSTO1*E208K and GSTO2*N142D polymorphisms did not show significant outcomes, the GSTO1*E155del polymorphism is associated with AD [P=0.003; adjusted OR=3.70 (1.57-8.75)]. Our results suggest that GSTO1-1 plays a role in AD since the GSTO1*del155 variant is involved in changes in GSTO1-1 activities decreasing in enzyme stability. Specifically, three hypotheses may explain the role of GSTO1-1 in the pathophysiology of AD: the antioxidant activity of GSTO1-1 may protect brain tissue against oxidative stress; GSTO1-1 activity regulate interleukin-1β activation and its genetic variation may act to modulate inflammation in AD; GSTO1-1 is involved in the arsenic biotransformation pathway and gene polymorphisms may be implicated in the modulation of arsenic neurotoxicity. In conclusion, we hypothesized that GSTO1*E155del is an uncommon genetic variant associated with AD risk.
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Affiliation(s)
- Sara Piacentini
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133, Rome, Italy
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Piacentini S, Verrotti A, Polimanti R, Giannini C, Saccucci P, Manfellotto D, Fuciarelli M. Functional polymorphisms of GSTA1 and GSTO2 genes associated with asthma in Italian children. Clin Chem Lab Med 2011; 50:311-5. [PMID: 22040239 DOI: 10.1515/cclm.2011.774] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 10/07/2011] [Indexed: 11/15/2022]
Abstract
BACKGROUND Asthma is an airway disorder characterized by bronchial inflammation. An imbalance between the oxidative forces and the antioxidant defense systems has been implicated in the pathogenesis of asthma. Glutathione S-transferases (GSTs) play an important role in cellular protection against inflammation. Several studies have investigated the genetic variability of GSTM1, GSTP1 and GSTT1 enzymes in asthma development with conflicting results. Moreover, in our previous independent case-control study on GSTs and asthma, we have found that GSTA1 and GSTO2 gene polymorphisms are associated with asthma. The aim of the present study is to analyze if some functional polymorphisms of GSTA1, GSTM1, GSTP1, GSTO2 and GSTT1 are associated with asthma in pediatric patients from Chieti (Italy). METHODS In this study, we performed an association study on 127 asthmatic children and 126 controls. We screened single nucleotide polymorphisms at GSTA1, GSTO2 and GSTP1 loci. The effects of GSTM1 and GSTT1 null genotype were also investigated. RESULTS The GSTA1*-69T and GSTO2*D142 variants are associated with the significant increased risk of asthma development in our study population, while GSTM1, GSTP1 and GSTT1 genotype distributions were nearly equal between the control group and asthmatics. CONCLUSIONS Confirming our previous study, these findings suggest that the GSTA1 and the GSTO2 are asthma susceptible genes involved in increasing the risk of asthma development in the Italian population.
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Affiliation(s)
- Sara Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
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Leoni V, Mariotti C, Nanetti L, Salvatore E, Squitieri F, Bentivoglio A, di Poggio MB, Piacentini S, Monza D, Valenza M, Cattaneo E, Di Donato S. Corrigendum to “Whole body cholesterol metabolism is impaired in Huntington's disease” [Neurosci. Lett. 494 (2011) 245–249]. Neurosci Lett 2011. [DOI: 10.1016/j.neulet.2011.04.075] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lalli S, Piacentini S, Gambini O, Franzini A, Messina G, Ferrè F, Perani D, Albanese A. P7.7 Prefrontal stimulation in Tourette syndrome. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60317-9] [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: 11/16/2022]
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Lalli S, Piacentini S, Franzini A, Messina G, Ferrè F, Perani D, Albanese A. P7.8 Premotor cortical stimulation in primary dystonia. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60318-0] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Leoni V, Mariotti C, Nanetti L, Salvatore E, Squitieri F, Bentivoglio AR, Bandettini di Poggio M, Bandettini Del Poggio M, Piacentini S, Monza D, Valenza M, Cattaneo E, Di Donato S. Whole body cholesterol metabolism is impaired in Huntington's disease. Neurosci Lett 2011; 494:245-9. [PMID: 21406216 DOI: 10.1016/j.neulet.2011.03.025] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 03/01/2011] [Accepted: 03/08/2011] [Indexed: 12/11/2022]
Abstract
We previously reported impaired cholesterol biosynthesis in rodent Huntington Disease (HD) models and HD patients' fibroblasts and post mortem brains. We also found that plasma levels of 24S-hydroxycholesterol (24OHC), the brain specific elimination product of cholesterol considered a marker of brain cholesterol turnover, were significantly reduced in HD patients at any disease stage. In the present study we analysed by mass spectrometry the fasting plasma levels of cholesterol, its biosynthetic precursors lanosterol and lathosterol, of the whole-body elimination products 27-hydroxycholesterol and of brain 24OHC in a cohort of premanifest and HD patients at different disease stages. We found that the cholesterol precursors lanosterol and lathosterol (both index of whole body cholesterol synthesis), the levels of the bile acid precursor 27-hydroxycholesterol, and of the brain specific 24OHC, were all significantly reduced in manifest HD patients, suggesting that whole-body and brain cholesterol homeostasis are both impaired in HD.
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Affiliation(s)
- V Leoni
- Laboratory of Clinical Pathology and Medical Genetics, Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Via Celoria 11, 20133 Milano, MI, Italy.
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Matà S, Borsini W, Ambrosini S, Toscani L, Barilaro A, Piacentini S, Sorbi S, Lolli F. IgM monoclonal gammopathy-associated neuropathies with different IgM specificity. Eur J Neurol 2011; 18:1067-73. [PMID: 21261794 DOI: 10.1111/j.1468-1331.2010.03345.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Antibodies directed against myelin-associated glycoprotein (MAG) are believed to be the most frequent biologic marker of the neuropathies associated with IgM monoclonal gammopathy of undetermined significance (MGUS). The objective of this study was to examine the prevalence of antiganglioside and/or sulfatide-positive patients and their clinical findings, including therapeutic response, compared to anti-MAG-positive or seronegative patients. METHODS We prospectively followed 46 patients with MGUS who were diagnosed in our tertiary referral centers for polyneuropathy since 1997. All patients underwent nerve conduction studies and were tested for anti-MAG, gangliosides, and sulfatide antibodies. All the anagraphic and clinical data (including symptoms, disability scale, therapy, secondary malignancy development) were recorded in a database and compared between three patients' groups (anti-MAG-positive; antiganglioside/sulfatide-positive; no reactivity). RESULTS Anti-MAG reactivity was present in 17 (37%) patients; other 17 patients (37%) had antiganglioside/sulfatide reactivity and 12 (26%) had no reactivity. Patients with antiganglioside/sulfatide positivity, although heterogeneous by a clinical and neurophysiological point of view, had the most severe neuropathic manifestations and a higher disability score at nadir (P < 0.001). These patients had a better response to both intravenous immunoglobulin therapy and rituximab. CONCLUSIONS Our results suggest that antiganglioside/sulfatide-positive patients form a relevant portion of patients with MGUS-associated polyneuropathy seen in tertiary care centers and should be considered in future studies on treatment response.
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Affiliation(s)
- S Matà
- Neurology Department, University Hospital of Careggi, Firenze Neurology Department, S.M. Annunziata Hospital, Firenze, Italy.
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Perani D, Grassi F, Sorbi S, Nacmias B, Piacentini S, Piersanti P, Provinciali L, Amaducci L, Fazio F. PET study in subjects from two Italian FAD families with APP717 Val to Ileu mutation. Eur J Neurol 2011. [DOI: 10.1111/j.1468-1331.1997.tb00337.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
BACKGROUND Dopamine neurotransmission plays a key role in several brain activities, including motor, cognitive, and behavioral functions. Parkinson's disease (PD) typically begins with asymmetrical motor features related to asymmetrical dopamine denervation. This study was designed to examine whether distinct cognitive, behavioral, and personality features are related to this asymmetry. METHODS Fifty-six patients with mild PD and lateralized motor features were grouped according to dominant side of motor features and evaluated using a neuropsychological assessment focused on attention and executive functions, impulse control disorders, and personality inventory. RESULTS There were no differences in neuropsychological functions between patients with right and left lateralized PD, but differences occurred in personality features. Patients with motor impairment predominant on the left-hand side had prevalence of hypomania and conversion profile. CONCLUSIONS This study suggests that side dominance of dopaminergic denervation may be related to personality features in patients with PD that could influence behavioral aspects.
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Affiliation(s)
- S Piacentini
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy.
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Polimanti R, Piacentini S, Porreca F, Fuciarelli M. Glutathione S-transferase ω class (GSTO) polymorphisms in a sample from Rome (Central Italy). Ann Hum Biol 2010; 37:585-92. [PMID: 20113212 DOI: 10.3109/03014460903508520] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Glutathione S-transferases are a superfamily of enzymes that are involved in biotransformation of drugs, xenobiotics and play a fundamental role in the protection of cells from oxidative stress. In humans, the recently described GST Omega class contains two expressed genes GSTO1 and GSTO2, located on chromosome 10 (10q24.3). Four polymorphisms in GSTO genes have been identified in ethnic groups: GSTO1*A140D (rs4925), GSTO1*E155del (rs56204475), GSTO1*E208K (rs11509438) and GSTO2*N142D (rs156697). This study provides the allele frequencies of GSTO polymorphism in a sample consisting of 116 apparently healthy individuals of both sexes from Rome (Central Italy). Detection of GSTO1*A140D and GSTO2*N142D alleles was performed by PCR-RFLP analysis, while GSTO1*E155del and GSTO1*E208K alleles were detected using the Confronting Two-Pair Primers analysis (PCR-CTPP) and allele specific PCR, respectively. The GSTO allele frequencies found in the Italian sample were included in the variability range observed in European populations. Comparison between the data presented in this study and data in previous studies showed different patterns among European, Asian and African populations.
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Affiliation(s)
- Renato Polimanti
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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Della Nave R, Ginestroni A, Tessa C, Giannelli M, Piacentini S, Filippi M, Mascalchi M. Regional distribution and clinical correlates of white matter structural damage in Huntington disease: a tract-based spatial statistics study. AJNR Am J Neuroradiol 2010; 31:1675-81. [PMID: 20488902 DOI: 10.3174/ajnr.a2128] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [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: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE HD entails damage of the WM. Our aim was to explore in vivo the regional volume and microstructure of the brain WM in HD and to correlate such findings with clinical status of the patients. MATERIALS AND METHODS Fifteen HD gene carriers in different clinical stages of the disease and 15 healthy controls were studied with T1-weighted images for VBM and DTI for TBSS. Maps of FA, MD, and λ∥ and λ⊥ were reconstructed. RESULTS Compared with controls, in addition to neostriatum and cortical GM volume loss, individuals with HD showed volume loss in the genu of the internal capsule and subcortical frontal WM bilaterally, the right splenium of the corpus callosum, and the left corona radiata. TBSS revealed symmetrically decreased FA in the corpus callosum, fornix, external/extreme capsule, inferior fronto-occipital fasciculus, and inferior longitudinal fasciculus. Areas of increased MD were more extensive and included arciform fibers of the cerebral hemispheres and cerebral peduncles. Increase of the λ∥ and a comparatively more pronounced increase of the λ⊥ underlay the decreased FA of the WM in HD. Areas of WM atrophy, decreased FA, and increased MD correlated with the severity of the motor and cognitive dysfunction, whereas only the areas with increased MD correlated with disease duration. CONCLUSIONS Microstructural damage accompanies volume decrease of the WM in HD and is correlated with the clinical deficits and disease duration. MR imaging-based measures could be considered as a biomarker of neurodegeneration in HD gene carriers.
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Affiliation(s)
- R Della Nave
- Radiodiagnostic Unit, San Giuseppe Hospital, Empoli, Italy
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Ginestroni A, Battaglini M, Diciotti S, Della Nave R, Mazzoni LN, Tessa C, Giannelli M, Piacentini S, De Stefano N, Mascalchi M. Magnetization transfer MR imaging demonstrates degeneration of the subcortical and cortical gray matter in Huntington disease. AJNR Am J Neuroradiol 2010; 31:1807-12. [PMID: 20813872 DOI: 10.3174/ajnr.a2225] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE GM is typically affected in HD since the presymptomatic stage. Our aim was to investigate with MT MR imaging the microstructural changes of the residual brain subcortical and cortical GM in carriers of the HD gene and to preliminarily assess their correlation with the clinical features. MATERIALS AND METHODS Fifteen HD gene carriers with a range of clinical severity and 15 age- and sex-matched healthy controls underwent MT MR imaging on a 1.5T scanner. The MT ratio was measured automatically in several subcortical and cortical GM regions (striatal nuclei; thalami; and the neocortex of the frontal, temporal, parietal, and occipital lobes) by using FLS tools. RESULTS The MT ratio was significantly (P < .05 with Bonferroni correction for multiple comparison) decreased in all subcortical structures except the putamen and decreased diffusely in the cerebral cortex of HD carriers compared with controls. Close correlation was observed between the subcortical and cortical regional MT ratios and several clinical variables, including disease duration, motor disability, and scores in timed neuropsychological tests. CONCLUSIONS MT imaging demonstrates degeneration of the subcortical and cortical GM in HD carriers and might serve, along with volumetric assessment, as a surrogate marker in future clinical trials of HD.
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Affiliation(s)
- A Ginestroni
- Department of Clinical Physiopathology, University of Florence, Italy
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Ginestroni A, Ghelli E, Mechi C, Pradella S, Romoli AM, Mascalchi M, Piacentini S. I03 Magnetisation transfer MR imaging demonstrates degeneration of the subcortical and cortical grey matter in Huntington's disease. J Neurol Neurosurg Psychiatry 2010. [DOI: 10.1136/jnnp.2010.222679.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Piacentini S, Polimanti R, Moscatelli B, Re MA, Fuciarelli R, Manfellotto D, Fuciarelli M. Glutathione S-transferase gene polymorphisms and air pollution as interactive risk factors for asthma in a multicentre Italian field study: A preliminary study. Ann Hum Biol 2010; 37:427-39. [PMID: 20367187 DOI: 10.3109/03014461003636419] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Asthma is one of the most common chronic diseases. Several studies have indicated that oxidative stress impairs pulmonary function. Glutathione S-transferases (GSTs) are believed to be critical in the protection of cells from reactive oxygen species. AIM In this case-control study we analysed the possible association between polymorphism in several cytosolic GST genes, air pollution and asthma development. METHODS Genotyping of GSTM1 and GSTT1 genes was carried out by a multiplex PCR; GSTA1, GSTO1, GSTO2, GSTP1 polymorphisms were determined using the PCR-RFLP method. Data on atmospheric pollutants were collected by the regional air-quality monitoring network. RESULTS Among all the polymorphisms studied, the frequencies of GSTA1, GSTM1, GSTO2 and GSTT1 genotypes found in the group of asthmatic patients seem to differ from the frequencies of those found in the control group. Air pollutants were analysed and the air quality parameters considered proved to be significantly different, and therefore suitable for this study. CONCLUSION The final result of this research should hopefully lead to a better understanding of gene-environment interactions, so allowing earlier prediction and diagnosis of asthma disease and providing an efficient means of prevention.
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Affiliation(s)
- S Piacentini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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Piacentini S, Polimanti R, Porreca F, Martínez-Labarga C, De Stefano GF, Fuciarelli M. GSTT1 and GSTM1 gene polymorphisms in European and African populations. Mol Biol Rep 2010; 38:1225-30. [PMID: 20563854 DOI: 10.1007/s11033-010-0221-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Accepted: 06/11/2010] [Indexed: 12/11/2022]
Abstract
Glutathione S-transferases (GSTs) are a superfamily of detoxificant enzymes. Pharmacogenomic studies have revealed interethnic differences in GST allelic frequencies. This study is focused on GSTT1 (gene deletion, rs17850155, rs2234953, and rs11550605) and GSTM1 (gene deletion) gene frequency distributions in two population samples of Europe origin (Italy, n = 120; Spain, n = 94) and two population samples of Africa origin (Cameroon, n = 126; Ethiopia, n = 153). Detection of GSTT1 and GSTM1 null genotypes was performed by multiplex PCR analysis, while the other GSTT1 gene polymorphisms were detected using allele specific PCR and sequencing. GSTT1 and GSTM1 null frequencies in the samples analyzed fit with the variability range observed in European and African populations, respectively. The SNP analysis in GSTT1 gene did not highlight any nucleotide substitution in 493 individuals analyzed. The comparisons among GSTM1 and GSTT1 null phenotype frequencies in worldwide populations show different patterns between Asians, Africans, and Europeans. Important insights into the effects of GSTM1 and GSTT1 gene deletions on the pathogenesis of human diseases have been hypothesized. Detailed studies on the geography of GST variants could therefore increase knowledge about the relationship between ethnicity and the prevalence of certain diseases.
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Affiliation(s)
- Sara Piacentini
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133, Rome, Italy
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Polimanti R, Piacentini S, Barone M, Porreca F, Fuciarelli M. Serum proteins and work habits in a group of farm-workers exposed to EBDCs. Ann Hum Biol 2010; 37:440-50. [DOI: 10.3109/03014461003702195] [Citation(s) in RCA: 3] [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: 11/13/2022]
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Polimanti R, Piacentini S, Moscatelli B, Pellicciotti L, Manfellotto D, Fuciarelli M. GSTA1, GSTO1 and GSTO2 gene polymorphisms in Italian asthma patients. Clin Exp Pharmacol Physiol 2010; 37:870-2. [PMID: 20374258 DOI: 10.1111/j.1440-1681.2010.05385.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1. Previous studies have established that genetic alterations in glutathione S-transferase enzymes may change the ability of the airway to deal with toxic substances and increase the risk of asthma. The present study analysed the association between asthma and GSTA1, GSTO1 and GSTO2 gene polymorphisms. 2. The GSTA1*-69C/T, GSTO1*A140D and GSTO2*N142D polymorphisms were detected by polymerase chain reaction-restriction fragment length polymorphism, whereas the GSTO1*E155del polymorphism was detected using the confronting two-pair primer method. 3. Distribution of the GSTA1*-69C/T genotype differed significantly between asthmatics and controls. Subjects with at least one allele -69T in the GSTA1 genotype have an increased risk of asthma (odds ratio (OR) 3.45; 95% confidence interval (CI) 1.80-6.62). The distribution of the GSTO1 genotype was nearly equal between the control group and asthmatics, however, the distribution of the GSTO2 gene differed significantly between asthmatics and controls (Chi-squared test). Subjects who had the GSTO2 homozygous D142 genotype were found to have an increased risk of asthma (OR 5.91; 95% CI 1.80-19.42). 4. The results show a potential association between the GST genes and asthma. This is particularly significant given that, in the literature, there are no epidemiological studies on alpha and omega classes of glutathione transferases in asthma.
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Affiliation(s)
- Renato Polimanti
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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Fuciarelli M, Caccuri A, De Francesca M, Ferazzoli F, Piacentini S, Porreca F. Modulation of the GSTT1 activity by the GSTM1 phenotype in a sample of Italian farm-workers. Arch Toxicol 2008; 83:115-20. [PMID: 18597073 DOI: 10.1007/s00204-008-0334-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Accepted: 06/18/2008] [Indexed: 10/21/2022]
Abstract
Glutathione S-transferase (GST) isozymes catalyze nucleophilic attack by reduced Glutathione (GSH) on a variety of electrophilic compounds and play a central role in biotransformation of xenobiotics (Hayes et al., Annu Rev Pharmacol Toxicol 45:51-88, 2005). We performed a case-control study to evaluate the GSTM1 and GSTT1 polymorphisms and to investigate if exposure to pesticides conditions the GSTT1 activity level in 115 healthy controls and 90 farm-workers exposed to pesticides. Polymorphisms were investigated using a GSTM1 or a GSTT1-specific PCR. Enzyme activity was measured by means of DCM as co-substrate, as described by Bruhn et al. (Biochem Pharmacol 56:1189-1193, 1998). There was no significant difference between the farm-workers and the healthy controls regarding the distribution of various alleles of the GSTM1 and GSTT1 genes and the GSTT1 enzyme activity. In farm-workers, the GSTM1 null genotype was associated with a significant increase of GSTT1 activity, suggesting a regulative mechanism common to GSTM1 and GSTT1 enzymes after exposure to xenobiotics.
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Affiliation(s)
- Maria Fuciarelli
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy.
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Della Nave R, Ginestroni A, Giannelli M, Tessa C, Salvatore E, Salvi F, Dotti MT, De Michele G, Piacentini S, Mascalchi M. Brain structural damage in Friedreich's ataxia. J Neurol Neurosurg Psychiatry 2008; 79:82-5. [PMID: 17634216 DOI: 10.1136/jnnp.2007.124297] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [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: 11/04/2022]
Abstract
OBJECTIVE Neuropathological descriptions of the brain in Friedreich's ataxia (FRDA) were obtained before availability of the current molecular genetic tests for this disease. Voxel-based morphometry (VBM) enables an unbiased whole-brain quantitative analysis of differences in gray matter (GM) and white matter (WM) volume. METHODS Using VBM, we assessed the brain structural damage in 22 patients with genetically confirmed FRDA and 25 healthy controls. The results were correlated with the disease duration and the severity of the patients' clinical deficits--evaluated using the International Cerebellar Ataxia Rating Scale and Inherited Ataxia Clinical Rating Scale. RESULTS In patients with FRDA, VBM showed a symmetrical volume loss in dorsal medulla, infero-medial portions of the cerebellar hemispheres, the rostral vermis and in the dentate region. No volume loss in cerebral hemispheres was observed. The atrophy of the cerebellum and medulla correlated with the severity of the clinical deficit and disease duration. CONCLUSIONS In patients with FRDA, significant GM and WM loss was observed only in the cerebellum and dorsal medulla. These structural changes correlate with the severity of the clinical deficit and disease duration.
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Affiliation(s)
- R Della Nave
- Radiodiagnostic Section, Department of Clinical Physiopathology, University of Florence, Florence, Viale Morgagni 85, 50134 Florence, Italy
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