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Agnes P, Albuquerque IFM, Alexander T, Alton AK, Araujo GR, Asner DM, Ave M, Back HO, Baldin B, Batignani G, Biery K, Bocci V, Bonfini G, Bonivento W, Bottino B, Budano F, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Canci N, Candela A, Caravati M, Cariello M, Carlini M, Carpinelli M, Catalanotti S, Cataudella V, Cavalcante P, Cavuoti S, Cereseto R, Chepurnov A, Cicalò C, Cifarelli L, Cocco AG, Covone G, D'Angelo D, D'Incecco M, D'Urso D, Davini S, De Candia A, De Cecco S, De Deo M, De Filippis G, De Rosa G, De Vincenzi M, Demontis P, Derbin AV, Devoto A, Di Eusanio F, Di Pietro G, Dionisi C, Downing M, Edkins E, Empl A, Fan A, Fiorillo G, Fomenko K, Franco D, Gabriele F, Gabrieli A, Galbiati C, Garcia Abia P, Ghiano C, Giagu S, Giganti C, Giovanetti GK, Gorchakov O, Goretti AM, Granato F, Gromov M, Guan M, Guardincerri Y, Gulino M, Hackett BR, Hassanshahi MH, Herner K, Hosseini B, Hughes D, Humble P, Hungerford EV, Ianni A, Ianni A, Ippolito V, James I, Johnson TN, Kahn Y, Keeter K, Kendziora CL, Kochanek I, Koh G, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lisanti M, Lissia M, Loer B, Longo G, Ma Y, Machado AA, Machulin IN, Mandarano A, Mapelli L, Mari SM, Maricic J, Martoff CJ, Messina A, Meyers PD, Milincic R, Mishra-Sharma S, Monte A, Morrocchi M, Mount BJ, Muratova VN, Musico P, Nania R, Navrer Agasson A, Nozdrina AO, Oleinik A, Orsini M, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pazzona F, Pelczar K, Pelliccia N, Pesudo V, Picciau E, Pocar A, Pordes S, Poudel SS, Pugachev DA, Qian H, Ragusa F, Razeti M, Razeto A, Reinhold B, Renshaw AL, Rescigno M, Riffard Q, Romani A, Rossi B, Rossi N, Sablone D, Samoylov O, Sands W, Sanfilippo S, Sant M, Santorelli R, Savarese C, Scapparone E, Schlitzer B, Segreto E, Semenov DA, Shchagin A, Sheshukov A, Singh PN, Skorokhvatov MD, Smirnov O, Sotnikov A, Stanford C, Stracka S, Suffritti GB, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Trinchese P, Unzhakov EV, Verducci M, Vishneva A, Vogelaar B, Wada M, Waldrop TJ, Wang H, Wang Y, Watson AW, Westerdale S, Wojcik MM, Wojcik M, Xiang X, Xiao X, Yang C, Ye Z, Zhu C, Zichichi A, Zuzel G. Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment. Phys Rev Lett 2018; 121:111303. [PMID: 30265123 DOI: 10.1103/physrevlett.121.111303] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/16/2018] [Indexed: 06/08/2023]
Abstract
We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100 MeV/c^{2}.
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Affiliation(s)
- P Agnes
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - 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
| | - G R Araujo
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - D M Asner
- Brookhaven National Laboratory, Upton, New York 11973, 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
| | - B Baldin
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, 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
| | - G Bonfini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - B Bottino
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - F Budano
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, 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
- Physics Department, Università degli Studi di 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
| | | | - N Canci
- Department of Physics, University of Houston, Houston, Texas 77204, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A Candela
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - M Caravati
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | | | - M Carlini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - M Carpinelli
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - S Catalanotti
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, 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
| | | | - A Chepurnov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - C Cicalò
- INFN Cagliari, Cagliari 09042, Italy
| | - L Cifarelli
- Physics Department, Università degli Studi di Bologna, Bologna 40126, Italy
- INFN Bologna, Bologna 40126, 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
| | - M D'Incecco
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - D D'Urso
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, 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
| | - M De Deo
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, 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
| | - M De Vincenzi
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - P Demontis
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Interuniversity Consortium for Science and Technology of Materials, Firenze 50121, 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
| | - F Di Eusanio
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - G Di Pietro
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- INFN Milano, Milano 20133, Italy
| | - C Dionisi
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - M Downing
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - E Edkins
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawai'i 96822, USA
| | - A Empl
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A Fan
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - G Fiorillo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - K Fomenko
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - D Franco
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, USPC, Paris 75205, France
| | - F Gabriele
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A Gabrieli
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - C Galbiati
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - P Garcia Abia
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - C Ghiano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - S Giagu
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, 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
| | - O Gorchakov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - A M Goretti
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - F Granato
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - M Gromov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - M Guan
- Institute of High Energy Physics, Beijing 100049, China
| | - Y Guardincerri
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Gulino
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Engineering and Architecture Faculty, Università di Enna Kore, Enna 94100, Italy
| | - B R Hackett
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawai'i 96822, USA
| | - M H Hassanshahi
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - K Herner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - D Hughes
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - P Humble
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - E V Hungerford
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - Al Ianni
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - An Ianni
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - I James
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - T N Johnson
- Department of Physics, University of California, Davis, California 95616, USA
| | - Y Kahn
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - 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
| | - I Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - G Koh
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - D Korablev
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - G Korga
- Department of Physics, University of Houston, Houston, Texas 77204, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - 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 Lisanti
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M Lissia
- INFN Cagliari, Cagliari 09042, Italy
| | - B Loer
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - G Longo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - Y Ma
- Institute of High Energy Physics, Beijing 100049, China
| | - A A Machado
- Physics Institute, Universidade Estadual de Campinas, Campinas 13083, Brazil
| | - I N Machulin
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A Mandarano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - L Mapelli
- Physics Department, Princeton University, Princeton, New Jersey 08544, 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, Hawai'i 96822, USA
| | - C J Martoff
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Messina
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - P D Meyers
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - R Milincic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawai'i 96822, USA
| | - S Mishra-Sharma
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A Monte
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | | | - B J Mount
- School of Natural Sciences, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - V N Muratova
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - P Musico
- INFN Genova, Genova 16146, Italy
| | - R Nania
- INFN Bologna, Bologna 40126, Italy
| | - A Navrer Agasson
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - 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
| | - M Orsini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - 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
| | - F Pazzona
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - K Pelczar
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - N Pelliccia
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - V Pesudo
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - E Picciau
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | - A Pocar
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - S Pordes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S S Poudel
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - D A Pugachev
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - H Qian
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - 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
| | - B Reinhold
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawai'i 96822, USA
| | - A L Renshaw
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | | | - Q Riffard
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, USPC, Paris 75205, France
| | - A Romani
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - B Rossi
- INFN Napoli, Napoli 80126, Italy
| | - N Rossi
- INFN Sezione di Roma, Roma 00185, Italy
| | - D Sablone
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - 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
| | - M Sant
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - R Santorelli
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - C Savarese
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | | | - B Schlitzer
- Department of Physics, University of California, Davis, California 95616, USA
| | - E Segreto
- Physics Institute, Universidade Estadual de Campinas, Campinas 13083, Brazil
| | - 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
| | - P N Singh
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - 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
| | - C Stanford
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - G B Suffritti
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Interuniversity Consortium for Science and Technology of Materials, Firenze 50121, Italy
| | - Y Suvorov
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - R Tartaglia
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Tonazzo
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, USPC, Paris 75205, France
| | - P Trinchese
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - E V Unzhakov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - M Verducci
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - A Vishneva
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - B Vogelaar
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - M Wada
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - T J Waldrop
- Physics Department, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - H Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - Y Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - A W Watson
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Westerdale
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M M Wojcik
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - M Wojcik
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 93-590 Lodz, Poland
| | - X Xiang
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - X Xiao
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - C Yang
- Institute of High Energy Physics, Beijing 100049, China
| | - Z Ye
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - C Zhu
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A Zichichi
- Physics Department, Università degli Studi di Bologna, Bologna 40126, Italy
- INFN Bologna, Bologna 40126, Italy
| | - G Zuzel
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
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Agnes P, Albuquerque IFM, Alexander T, Alton AK, Araujo GR, Asner DM, Ave M, Back HO, Baldin B, Batignani G, Biery K, Bocci V, Bonfini G, Bonivento W, Bottino B, Budano F, Bussino S, Cadeddu M, Cadoni M, Calaprice F, Caminata A, Canci N, Candela A, Caravati M, Cariello M, Carlini M, Carpinelli M, Catalanotti S, Cataudella V, Cavalcante P, Cavuoti S, Cereseto R, Chepurnov A, Cicalò C, Cifarelli L, Cocco AG, Covone G, D'Angelo D, D'Incecco M, D'Urso D, Davini S, De Candia A, De Cecco S, De Deo M, De Filippis G, De Rosa G, De Vincenzi M, Demontis P, Derbin AV, Devoto A, Di Eusanio F, Di Pietro G, Dionisi C, Downing M, Edkins E, Empl A, Fan A, Fiorillo G, Fomenko K, Franco D, Gabriele F, Gabrieli A, Galbiati C, Garcia Abia P, Ghiano C, Giagu S, Giganti C, Giovanetti GK, Gorchakov O, Goretti AM, Granato F, Gromov M, Guan M, Guardincerri Y, Gulino M, Hackett BR, Hassanshahi MH, Herner K, Hosseini B, Hughes D, Humble P, Hungerford EV, Ianni A, Ianni A, Ippolito V, James I, Johnson TN, Kahn Y, Keeter K, Kendziora CL, Kochanek I, Koh G, Korablev D, Korga G, Kubankin A, Kuss M, La Commara M, Lai M, Li X, Lisanti M, Lissia M, Loer B, Longo G, Ma Y, Machado AA, Machulin IN, Mandarano A, Mapelli L, Mari SM, Maricic J, Martoff CJ, Messina A, Meyers PD, Milincic R, Mishra-Sharma S, Monte A, Morrocchi M, Mount BJ, Muratova VN, Musico P, Nania R, Navrer Agasson A, Nozdrina AO, Oleinik A, Orsini M, Ortica F, Pagani L, Pallavicini M, Pandola L, Pantic E, Paoloni E, Pazzona F, Pelczar K, Pelliccia N, Pesudo V, Pocar A, Pordes S, Poudel SS, Pugachev DA, Qian H, Ragusa F, Razeti M, Razeto A, Reinhold B, Renshaw AL, Rescigno M, Riffard Q, Romani A, Rossi B, Rossi N, Sablone D, Samoylov O, Sands W, Sanfilippo S, Sant M, Santorelli R, Savarese C, Scapparone E, Schlitzer B, Segreto E, Semenov DA, Shchagin A, Sheshukov A, Singh PN, Skorokhvatov MD, Smirnov O, Sotnikov A, Stanford C, Stracka S, Suffritti GB, Suvorov Y, Tartaglia R, Testera G, Tonazzo A, Trinchese P, Unzhakov EV, Verducci M, Vishneva A, Vogelaar B, Wada M, Waldrop TJ, Wang H, Wang Y, Watson AW, Westerdale S, Wojcik MM, Wojcik M, Xiang X, Xiao X, Yang C, Ye Z, Zhu C, Zichichi A, Zuzel G. Low-Mass Dark Matter Search with the DarkSide-50 Experiment. Phys Rev Lett 2018; 121:081307. [PMID: 30192596 DOI: 10.1103/physrevlett.121.081307] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Indexed: 06/08/2023]
Abstract
We present the results of a search for dark matter weakly interacting massive particles (WIMPs) in the mass range below 20 GeV/c^{2} using a target of low-radioactivity argon with a 6786.0 kg d exposure. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso. The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1 keVee. The observed rate in the detector at 0.5 keVee is about 1.5 event/keVee/kg/d and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8 GeV/c^{2} for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6 GeV/c^{2}.
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Affiliation(s)
- P Agnes
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - 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
| | - G R Araujo
- Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil
| | - D M Asner
- Brookhaven National Laboratory, Upton, New York 11973, 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
| | - B Baldin
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, 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
| | - G Bonfini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - B Bottino
- Physics Department, Università degli Studi di Genova, Genova 16146, Italy
- INFN Genova, Genova 16146, Italy
| | - F Budano
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, 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
- Physics Department, Università degli Studi di 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
| | | | - N Canci
- Department of Physics, University of Houston, Houston, Texas 77204, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A Candela
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - M Caravati
- INFN Cagliari, Cagliari 09042, Italy
- Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy
| | | | - M Carlini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - M Carpinelli
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - S Catalanotti
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, 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
| | | | - A Chepurnov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - C Cicalò
- INFN Cagliari, Cagliari 09042, Italy
| | - L Cifarelli
- Physics Department, Università degli Studi di Bologna, Bologna 40126, Italy
- INFN Bologna, Bologna 40126, 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
| | - M D'Incecco
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - D D'Urso
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, 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
| | - M De Deo
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, 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
| | - M De Vincenzi
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - P Demontis
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Interuniversity Consortium for Science and Technology of Materials, Firenze 50121, 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
| | - F Di Eusanio
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - G Di Pietro
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- INFN Milano, Milano 20133, Italy
| | - C Dionisi
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - M Downing
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - E Edkins
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - A Empl
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - A Fan
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - G Fiorillo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - K Fomenko
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - D Franco
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, USPC, Paris 75205, France
| | - F Gabriele
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - A Gabrieli
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - C Galbiati
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - P Garcia Abia
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - Chiara Ghiano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - S Giagu
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, 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
| | - O Gorchakov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - A M Goretti
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - F Granato
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - M Gromov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia
| | - M Guan
- Institute of High Energy Physics, Beijing 100049, China
| | - Y Guardincerri
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M Gulino
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Engineering and Architecture Faculty, Università di Enna Kore, Enna 94100, Italy
| | - B R Hackett
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - M H Hassanshahi
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - K Herner
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - D Hughes
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - P Humble
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - E V Hungerford
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - Al Ianni
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - An Ianni
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - I James
- INFN Roma Tre, Roma 00146, Italy
- Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy
| | - T N Johnson
- Department of Physics, University of California, Davis, California 95616, USA
| | - Y Kahn
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - 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
| | - I Kochanek
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - G Koh
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - D Korablev
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - G Korga
- Department of Physics, University of Houston, Houston, Texas 77204, USA
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - 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 Lisanti
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M Lissia
- INFN Cagliari, Cagliari 09042, Italy
| | - B Loer
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - G Longo
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - Y Ma
- Institute of High Energy Physics, Beijing 100049, China
| | - A A Machado
- Physics Institute, Universidade Estadual de Campinas, Campinas 13083, Brazil
| | - I N Machulin
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
- National Research Nuclear University MEPhI, Moscow 115409, Russia
| | - A Mandarano
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | - L Mapelli
- Physics Department, Princeton University, Princeton, New Jersey 08544, 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
| | - C J Martoff
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Messina
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - P D Meyers
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - R Milincic
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - S Mishra-Sharma
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A Monte
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | | | - B J Mount
- School of Natural Sciences, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - V N Muratova
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - P Musico
- INFN Genova, Genova 16146, Italy
| | - R Nania
- INFN Bologna, Bologna 40126, Italy
| | - A Navrer Agasson
- LPNHE, CNRS/IN2P3, Sorbonne Université, Université Paris Diderot, Paris 75252, France
| | - 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
| | - M Orsini
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - 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
| | - F Pazzona
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - K Pelczar
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | - N Pelliccia
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - V Pesudo
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - A Pocar
- Amherst Center for Fundamental Interactions and Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - S Pordes
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - S S Poudel
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - D A Pugachev
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - H Qian
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - 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
| | - B Reinhold
- Department of Physics and Astronomy, University of Hawai'i, Honolulu, Hawaii 96822, USA
| | - A L Renshaw
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | | | - Q Riffard
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, USPC, Paris 75205, France
| | - A Romani
- Chemistry, Biology and Biotechnology Department, Università degli Studi di Perugia, Perugia 06123, Italy
- INFN Perugia, Perugia 06123, Italy
| | - B Rossi
- INFN Napoli, Napoli 80126, Italy
| | - N Rossi
- INFN Sezione di Roma, Roma 00185, Italy
| | - D Sablone
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - 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
| | - M Sant
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
| | - R Santorelli
- CIEMAT, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid 28040, Spain
| | - C Savarese
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
- Gran Sasso Science Institute, L'Aquila 67100, Italy
| | | | - B Schlitzer
- Department of Physics, University of California, Davis, California 95616, USA
| | - E Segreto
- Physics Institute, Universidade Estadual de Campinas, Campinas 13083, Brazil
| | - 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
| | - P N Singh
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - 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
| | - C Stanford
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | | | - G B Suffritti
- Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy
- INFN Laboratori Nazionali del Sud, Catania 95123, Italy
- Interuniversity Consortium for Science and Technology of Materials, Firenze 50121, Italy
| | - Y Suvorov
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
- National Research Centre Kurchatov Institute, Moscow 123182, Russia
| | - R Tartaglia
- INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy
| | | | - A Tonazzo
- APC, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, USPC, Paris 75205, France
| | - P Trinchese
- Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy
- INFN Napoli, Napoli 80126, Italy
| | - E V Unzhakov
- Saint Petersburg Nuclear Physics Institute, Gatchina 188350, Russia
| | - M Verducci
- INFN Sezione di Roma, Roma 00185, Italy
- Physics Department, Sapienza Università di Roma, Roma 00185, Italy
| | - A Vishneva
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - B Vogelaar
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - M Wada
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - T J Waldrop
- Physics Department, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - H Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - Y Wang
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - A W Watson
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Westerdale
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - M M Wojcik
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
| | - M Wojcik
- Institute of Applied Radiation Chemistry, Lodz University of Technology, 93-590 Lodz, Poland
| | - X Xiang
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - X Xiao
- Physics and Astronomy Department, University of California, Los Angeles, California 90095, USA
| | - C Yang
- Institute of High Energy Physics, Beijing 100049, China
| | - Z Ye
- Department of Physics, University of Houston, Houston, Texas 77204, USA
| | - C Zhu
- Physics Department, Princeton University, Princeton, New Jersey 08544, USA
| | - A Zichichi
- Physics Department, Università degli Studi di Bologna, Bologna 40126, Italy
- INFN Bologna, Bologna 40126, Italy
| | - G Zuzel
- M. Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Krakow, Poland
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Rossi B, Agnes P, Alexander T, Alton A, Arisaka K, Back H, Baldin B, Biery K, Bonfini G, Bossa M, Brigatti A, Brodsky J, Budano F, Calaprice F, Canci N, Candela A, Cariello M, Cavalcante P, Catalanotti S, Chavarria A, Chepurnov A, Cocco AG, Covone G, D'Angelo D, D'Incecco M, Deo MD, Derbin A, Devoto A, Eusanio FD, Edkins E, Empl A, Fan A, Fiorillo G, Fomenko K, Franco D, Gabriele F, Galbiati C, Goretti A, Grandi L, Guan M, Guardincerri Y, Hackett B, Herner K, Hungerford E, Ianni A, Ianni A, Kendziora C, Koh G, Korablev D, Korga G, Kurlej A, Li P, Lombardi P, Luitz S, Machulin I, Mandarano A, Mari S, Maricic J, Marini L, Martoff CJ, Meyers P, Montanari D, Montuschi M, Monzani M, Musico P, Odrowski S, Orsini M, Ortica F, Pagani L, Pallavicini M, Pantic E, Papp L, Parmeggiano S, Pelliccia N, Perasso S, Pocar A, Pordes S, Qian H, Randle K, Ranucci G, Razeto A, Reinhold B, Renshaw A, Romani A, Rossi N, Rountree S, Sablone D, Saldanha R, Sands W, Segreto E, Shields E, Smirnov O, Sotnikov A, Stanford C, Suvorov Y, Tartaglia R, Tatarowicz J, Testera G, Tonazzo A, Unzhakov E, Vogelaar R, Wada M, Walker S, Wang H, Watson A, Westerdale S, Wojcik M, Xiang X, Xu J, Yang C, Yoo J, Zavatarelli S, Zec A, Zhu C, Zuzel G. The DarkSide Program. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201612106010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Schofield L, Grieu F, Amanuel B, Carrello A, Spagnolo D, Kiraly C, Pachter N, Goldblatt J, Platell C, Levitt M, Stewart C, Salama P, Ee H, Raftopoulous S, Katris P, Threlfall T, Edkins E, Wallace M, Iacopetta B. Population-based screening for Lynch syndrome in Western Australia. Int J Cancer 2014; 135:1085-91. [PMID: 24474394 DOI: 10.1002/ijc.28744] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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: 10/14/2013] [Accepted: 12/13/2013] [Indexed: 11/11/2022]
Abstract
We showed earlier that routine screening for microsatellite instability (MSI) and loss of mismatch repair (MMR) protein expression in colorectal cancer (CRC) led to the identification of previously unrecognized cases of Lynch syndrome (LS). We report here the results of screening for LS in Western Australia (WA) during 1994-2012. Immunohistochemistry (IHC) for loss of MMR protein expression was performed in routine pathology laboratories, while MSI was detected in a reference molecular pathology laboratory. Information on germline mutations in MMR genes was obtained from the state's single familial cancer registry. Prior to the introduction of routine laboratory-based screening, an average of 2-3 cases of LS were diagnosed each year amongst WA CRC patients. Following the implementation of IHC and/or MSI screening for all younger (<60 years) CRC patients, this has increased to an average of 8 LS cases diagnosed annually. Based on our experience in WA, we propose three key elements for successful population-based screening of LS. First, for all younger CRC patients, reflex IHC testing should be carried out in accredited pathology services with ongoing quality control. Second, a state- or region-wide reference laboratory for MSI testing should be established to confirm abnormal or suspicious IHC test results and to exclude sporadic cases by carrying out BRAF mutation or MLH1 methylation testing. Finally, a state or regional LS coordinator is essential to ensure that all appropriate cases identified by laboratory testing are referred to and attend a Familial Cancer Clinic for follow-up and germline testing.
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Affiliation(s)
- Lyn Schofield
- School of Surgery, University of Western Australia, Crawley, WA; Genetic Services of Western Australia, King Edward Memorial Hospital, Subiaco, WA; School of Paediatrics and Child Health, University of Western Australia, Crawley, WA
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5
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Heron SE, Hernandez M, Edwards C, Edkins E, Jansen FE, Scheffer IE, Berkovic SF, Mulley JC. Neonatal seizures and long QT syndrome: a cardiocerebral channelopathy? Epilepsia 2009; 51:293-6. [PMID: 19863579 DOI: 10.1111/j.1528-1167.2009.02317.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We identified a patient with electrophysiologically verified neonatal long QT syndrome (LQTS) and neonatal seizures in the presence of a controlled cardiac rhythm. To find a cause for this unusual combination of phenotypes, we tested the patient for mutations in seven ion channel genes associated with either LQTS or benign familial neonatal seizures (BFNS). Comparative genome hybridization (CGH) was done to exclude the possibility of a contiguous gene syndrome. No mutations were found in the genes (KCNQ2, KCNQ3) associated with BFNS, and CGH was negative. A previously described mutation and a known rare variant were found in the LQTS-associated genes SCN5A and KCNE2. Both are expressed in the brain, and although mutations have not been associated with epilepsy, we propose a pathophysiologic mechanism by which the combination of molecular changes may cause seizures.
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Affiliation(s)
- Sarah E Heron
- SA Pathology at Women's and Children's Hospital, North Adelaide, SA, Australia.
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6
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Woon ST, Ameratunga R, Croxson M, Taylor G, Neas K, Edkins E, Browett P, Gane E, Munn S. Follicular lymphoma in a X-linked lymphoproliferative syndrome carrier female. Scand J Immunol 2008; 68:153-8. [PMID: 18702745 DOI: 10.1111/j.1365-3083.2008.02128.x] [Citation(s) in RCA: 16] [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] [Indexed: 11/28/2022]
Abstract
X-linked lymphoproliferative (XLP) syndrome is a rare primary immune-deficiency disorder caused by mutations of the SH2D1A or XIAP genes. Males with the disorder are usually in good health until contracting Epstein-Barr virus (EBV) whereupon the majority of patients die from fulminant infectious mononucleosis, lymphoma or hypogammaglobulinaemia. This report describes a female carrier with an XLP phenotype who was retrospectively identified after her grandson died from the disorder. Subsequent genetic testing identified the patient's mother and affected maternal grandmother as XLP carriers. The family's medical records were significant. The proband had lymphoma at ages 2 and 8 and made a full recovery following treatment. Both the maternal grandmother and uncle died of non-Hodgkin's lymphoma. We were concerned that the XLP carrier mother may be predisposed to lymphoma if the normal X chromosome is skewed towards inactivation. The human androgen receptor assay detected random X chromosome inactivation in the carrier mother. EBV was not detected in the lymphoma tissues of the proband and his grandmother, confirming previous findings that EBV is not always associated with lymphoma in XLP. More significantly, our study highlights the importance of identifying XLP in families with a high incidence of lymphoma.
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Affiliation(s)
- S-T Woon
- Department of Virology, LabPLUS, Auckland City Hospital, Auckland, New Zealand
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7
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Chan A, Metcalf C, Watt P, Longman G, Goldblatt J, Walpole I, Edkins E, Saunders C. Prevalence of breast cancer-susceptible mutations in women <36 years with invasive breast cancer and correlation with histopathology features of the primary cancer. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)80278-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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8
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Mann GJ, Thorne H, Balleine RL, Butow PN, Clarke CL, Edkins E, Evans GM, Fereday S, Haan E, Gattas M, Giles GG, Goldblatt J, Hopper JL, Kirk J, Leary JA, Lindeman G, Niedermayr E, Phillips KA, Picken S, Pupo GM, Saunders C, Scott CL, Spurdle AB, Suthers G, Tucker K, Chenevix-Trench G. Analysis of cancer risk and BRCA1 and BRCA2 mutation prevalence in the kConFab familial breast cancer resource. Breast Cancer Res 2006; 8:R12. [PMID: 16507150 PMCID: PMC1413975 DOI: 10.1186/bcr1377] [Citation(s) in RCA: 130] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2005] [Revised: 12/20/2005] [Accepted: 01/06/2006] [Indexed: 02/06/2023] Open
Abstract
Introduction The Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer (kConFab) is a multidisciplinary, collaborative framework for the investigation of familial breast cancer. Based in Australia, the primary aim of kConFab is to facilitate high-quality research by amassing a large and comprehensive resource of epidemiological and clinical data with biospecimens from individuals at high risk of breast and/or ovarian cancer, and from their close relatives. Methods Epidemiological, family history and lifestyle data, as well as biospecimens, are collected from multiple-case breast cancer families ascertained through family cancer clinics in Australia and New Zealand. We used the Tyrer-Cuzick algorithms to assess the prospective risk of breast cancer in women in the kConFab cohort who were unaffected with breast cancer at the time of enrolment in the study. Results Of kConFab's first 822 families, 518 families had multiple cases of female breast cancer alone, 239 had cases of female breast and ovarian cancer, 37 had cases of female and male breast cancer, and 14 had both ovarian cancer as well as male and female breast cancer. Data are currently held for 11,422 people and germline DNAs for 7,389. Among the 812 families with at least one germline sample collected, the mean number of germline DNA samples collected per family is nine. Of the 747 families that have undergone some form of mutation screening, 229 (31%) carry a pathogenic or splice-site mutation in BRCA1 or BRCA2. Germline DNAs and data are stored from 773 proven carriers of BRCA1 or BRCA1 mutations. kConFab's fresh tissue bank includes 253 specimens of breast or ovarian tissue – both normal and malignant – including 126 from carriers of BRCA1 or BRCA2 mutations. Conclusion These kConFab resources are available to researchers anywhere in the world, who may apply to kConFab for biospecimens and data for use in ethically approved, peer-reviewed projects. A high calculated risk from the Tyrer-Cuzick algorithms correlated closely with the subsequent occurrence of breast cancer in BRCA1 and BRCA2 mutation positive families, but this was less evident in families in which no pathogenic BRCA1 or BRCA2 mutation has been detected.
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Affiliation(s)
- Graham J Mann
- Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
| | - Heather Thorne
- Research Division, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - Rosemary L Balleine
- Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
| | | | - Christine L Clarke
- Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
| | - Edward Edkins
- Women's and Children's Health Service, Subiaco and Centre for Human Genetics, Edith Cowen University, Joondalup, Western Australia, Australia
| | - Gerda M Evans
- Breast Cancer Network Australia, Camberwell, Victoria, Australia
| | - Sián Fereday
- Cancer Epidemiology Centre, The Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Eric Haan
- SA Clinical Genetics Service, Department of Genetic Medicine, Women's and Children's Hospital, North Adelaide, Australia, and Department of Paediatrics, University of Adelaide, Australia
| | - Michael Gattas
- Queensland Clinical Genetics Service, Royal Children's Hospital, Brisbane, Herston, Australia
| | - Graham G Giles
- Cancer Epidemiology Centre, The Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Jack Goldblatt
- Genetic Services of Western Australia, King Edward's Memorial Hospital, School of Paediatrics and Child Health, University of Western Australia, Perth, Subiaco, Australia
| | - John L Hopper
- Centre for Genetic Epidemiology, University of Melbourne, Melbourne, Victoria, Australia
| | - Judy Kirk
- Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
| | - Jennifer A Leary
- Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
| | - Geoffrey Lindeman
- Familial Cancer Centre, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Eveline Niedermayr
- Research Division, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - Kelly-Anne Phillips
- Division of Hematology and Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - Sandra Picken
- Research Division, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - Gulietta M Pupo
- Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
| | - Christobel Saunders
- School of Surgery and Pathology, University of Western Australia, Perth, Western Australia, Australia
| | - Clare L Scott
- Walter and Eliza Hall Institute of Medical Research, Royal Parade, Parkville, Victoria, Australia
| | - Amanda B Spurdle
- The Queensland Institute of Medical Research, Brisbane, Queensland, Australia
| | - Graeme Suthers
- SA Clinical Genetics Service, Department of Genetic Medicine, Women's and Children's Hospital, North Adelaide, Australia, and Department of Paediatrics, University of Adelaide, Australia
| | - Kathy Tucker
- Hereditary Cancer Clinic, Prince of Wales Hospital, Sydney, Australia
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9
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Sellner LN, Edkins E, Smith N. Screening for RB1 mutations in tumor tissue using denaturing high performance liquid chromatography, multiplex ligation-dependent probe amplification, and loss of heterozygosity analysis. Pediatr Dev Pathol 2006; 9:31-7. [PMID: 16808635 DOI: 10.2350/07-05-0078.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [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] [Received: 10/21/2005] [Accepted: 11/03/2005] [Indexed: 11/20/2022]
Abstract
Retinoblastoma is a malignant retinal neoplasm arising in infancy as a result of inactivating mutations in both alleles of the retinoblastoma susceptibility gene, RB1. Identification of the causative RB1 mutations in a patient assists in the clinical management of the affected patient and risk assessment of family members, principally on the basis of whether there is a germline mutation. In this paper, we describe our experience with molecular analysis of RB1 mutations in tumor and nontumor samples from 18 retinoblastoma patients, using multiplex ligation dependent probe amplification (MLPA) to detect large deletions or duplications, microsatellite analysis to detect loss of heterozygosity (LOH), and denaturing high performance liquid chromatography (D-HPLC) analysis to detect point mutations and small insertions or deletions. We found LOH in 71% of all cases, and 83% of these were due to acquired isodisomy rather than chromosomal deletions. Small mutations identified by D-HPLC accounted for 78% of the non-LOH mutations, and large deletions/duplications detected by MLPA accounted for the remaining 22%. We give the first report of a large, multiexon duplication in RB1 of exons 8 to 18.
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Affiliation(s)
- Loryn N Sellner
- Molecular Gentics, Princess Margaret Hospital for Children, Roberts Road, Subiaco 6009, Perth, Western Australia.
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10
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McPhillips M, Meldrum CJ, Creegan R, Edkins E, Scott RJ. Deletion Mutations in an Australian Series of HNPCC Patients. Hered Cancer Clin Pract 2005; 3:43-7. [PMID: 20223028 PMCID: PMC2837066 DOI: 10.1186/1897-4287-3-1-43] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2004] [Accepted: 11/30/2004] [Indexed: 11/10/2022] Open
Abstract
Hereditary non polyposis colorectal cancer (HNPCC) is characterized by the presence of early onset colorectal cancer and other epithelial malignancies. The genetic basis of HNPCC is a deficiency in DNA mismatch repair, which manifests itself as DNA microsatellite instability in tumours. There are four genes involved in DNA mismatch repair that have been linked to HNPCC; these include hMSH2, hMLH1, hMSH6 and hPMS2. Of these four genes hMLH1 and hMSH2 account for the majority of families diagnosed with the disease. Notwithstanding, up to 40 percent of families do not appear to harbour a change in either hMSH2 or hMLH1 that can be detected using standard screening procedures such as direct DNA sequencing or a variety of methods all based on a heteroduplex analysis.In this report we have screened a series of 118 probands that all have the clinical diagnosis of HNPCC for medium to large deletions by the Multiplex Ligation-Dependent Probe Amplification assay (MLPA) to determine the frequency of this type of mutation. The results indicate that a significant proportion of Australian HNPCC patients harbour deletion or duplication mutations primarily in hMSH2 but also in hMLH1.
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Affiliation(s)
- Mary McPhillips
- Division of Genetics, Hunter Area Pathology Service, John Hunter Hospital, Lookout Road, New Lambton, NSW 2305 Australia.
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11
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Sellner L, Edkins E, Greed L, Lewis B. Detection of mutations in the glycine decarboxylase gene in patients with nonketotic hyperglycinaemia. Mol Genet Metab 2005; 84:167-71. [PMID: 15670722 DOI: 10.1016/j.ymgme.2004.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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] [Received: 08/09/2004] [Revised: 09/29/2004] [Accepted: 10/02/2004] [Indexed: 10/26/2022]
Abstract
Nonketotic hyperglycinaemia (NKH) is an autosomal recessive disorder of glycine metabolism caused by a deficiency in the mitochondrial glycine cleavage enzyme. The majority of cases are caused by mutations in the P-protein, one of the four components of the glycine cleavage enzyme, also known as glycine decarboxylase (GLDC). Previous studies searching for causative mutations in NKH patients have only looked for a limited number of specific mutations or only screened part of the gene, and in many cases either no mutation or only one mutation was found, which is of limited use for prenatal diagnosis. In this study, we describe the screening of the entire GLDC gene in 3 NKH families by D-HPLC analysis of all 25 exons, identifying two point mutations and two large deletions (exon 8 and exons 2-15) using a combination of D-HPLC analysis, long range PCR, Southern blot and sequencing. For complete prenatal testing both mutations need to be identified, and we suggest that screening of the entire gene as well as deletional analysis should be considered in those subjects where only one mutation has been identified.
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Affiliation(s)
- Loryn Sellner
- Clinical Chemistry, Womens and Childrens Hospital, Perth, WA, Australia.
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12
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Bourne HC, Weston S, Prasad M, Edkins E, Benson EM. Identification of WASP mutations in 10 Australian families with Wiskott–Aldrich syndrome and X-linked thrombocytopenia. Pathology 2004; 36:262-4. [PMID: 15203732 DOI: 10.1080/00313020410001692521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
UNLABELLED Mutations of the gene encoding the Wiskott-Aldrich syndrome protein (WASP) have been previously shown to be responsible for classical Wiskott-Aldrich syndrome (WAS), isolated X-linked thrombocytopenia (XLT) and severe congenital X-linked neutropenia. AIMS Identification of WASP mutations in 10 unrelated Australian families presenting with clinical features of WAS/XLT. METHODS Mutation analysis was performed by PCR and sequence analysis. RESULTS AND CONCLUSIONS Two novel mutations and seven mutations which have previously been reported were identified. The novel mutations consisted of a missense mutation in exon 2 (C290A) associated with the phenotype of XLT and a mutation in intron 10 (1372+1G>A) in the mother of two boys presenting with a classical WAS phenotype.
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Affiliation(s)
- Helen C Bourne
- Department of Immunopathology, ICPMR Westmead Hospital, Westmead, NSW, Australia
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13
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Peverall J, Edkins E, Goldblatt J, Murch A. Identification of a novel deletion of the entire OCRL1 gene detected by FISH analysis in a family with Lowe syndrome. Clin Genet 2000; 58:479-82. [PMID: 11149618 DOI: 10.1034/j.1399-0004.2000.580609.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The oculocerebrorenal syndrome of Lowe (OCRL) is a rare X-linked multisystem disorder affecting the lens, kidney and brain. The gene involved (OCRL1) has been identified and is known to encode a phosphatidylinositol 4,5-bisphosphate 5-phosphatase. Mutations in OCRL1 have been shown to be causative of OCRL. To date, most of the mutations identified have consisted of simple or point mutations and there is one report of a 1.4-kb deletion. We investigated the OCRL1 gene in a male patient with OCRL by the polymerase chain reaction and found that the entire OCRL1 gene was deleted. Fluorescence in situ hybridisation analysis (FISH), with cosmid probes that span the entire OCRL1 gene, was used to confirm this deletion and subsequently identify it in the proband's mother. This is the first report of a whole gene deletion of OCRL1 and thus expands the range of mutations that give rise to OCRL. The use of the FISH technique facilitated carrier and prenatal testing for the deletion in the family.
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Affiliation(s)
- J Peverall
- Cytogenetics Department, King Edward Memorial Hospital, Subiaco, WA, Australia
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14
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Savithri HS, Venkatesha Murthy HS, Baskaran G, Appaji Rao N, Kool D, Edkins E, Wang W, Bittles AH. Predictive testing for familial adenomatous polyposis in a rural South Indian community. Clin Genet 2000; 58:57-60. [PMID: 10945662 DOI: 10.1034/j.1399-0004.2000.580109.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
During the course of genome studies in a rural community in the South Indian state of Karnataka, DNA-based investigations and counselling for familial adenomatous polyposis (FAP) were requested via the community physician. The proposita died in 1940 and FAP had been clinically diagnosed in 2 of her 5 children, both deceased. DNA samples from 2 affected individuals in the third generation were screened for mutations in the APC gene, and a frame-shift mutation was identified in exon 15 with a common deletion at codon 1061. Predictive testing for the mutation was then organized on a voluntary basis. There were 11 positive tests, including confirmatory positives on 2 persons diagnosed by colonoscopy, and to date surgery has been successfully undertaken on 3 previously undiagnosed adults. The ongoing success of the study indicates that, with appropriate access to the facilities offered by collaborating centres, predictive testing is feasible for diseases such as FAP and could be of significant benefit to communities in economically less developed countries.
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Affiliation(s)
- H S Savithri
- Department of Biochemistry, Indian Institute of Science, Bangalore
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15
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Bateman JF, Freddi S, Lamandé SR, Byers P, Nasioulas S, Douglas J, Otway R, Kohonen-Corish M, Edkins E, Forrest S. Reliable and sensitive detection of premature termination mutations using a protein truncation test designed to overcome problems of nonsense-mediated mRNA instability. Hum Mutat 2000; 13:311-7. [PMID: 10220145 DOI: 10.1002/(sici)1098-1004(1999)13:4<311::aid-humu8>3.0.co;2-p] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The protein truncation test (PTT) is a mutation-detection method used to scan for premature termination (nonsense) mutations. PCR amplification of the DNA or mRNA source material is performed using forward primers containing a T7-promoter sequence and translation initiation signals such that the resultant products can be transcribed and translated in vitro to identify the smaller truncated protein products. mRNA is commonly used as the source material, but success of the PTT and other RNA-based mutation detection methods can be severely compromised by nonsense mutation-induced mRNA decay, a well-documented process that is often overlooked in mutation detection strategies. In this study, we develop an RNA-based PTT that overcomes the problem of mRNA decay by preincubating cells with cycloheximide to stabilise the mutant mRNA. The effectiveness of this method for mutation detection in abundant mRNAs was demonstrated in osteogenesis imperfecta fibroblasts by the protection of type I collagen (COL1A1) mRNA containing nonsense mutations that normally resulted in mutant mRNA degradation. Stabilisation of mutant mismatch repair gene (MLH1) mRNA was also observed in transformed lymphocytes from patients with hereditary nonpolyposis colorectal cancer (HNPCC). Importantly, our strategy also stabilised very low-level (or illegitimate) nonsense-containing transcripts in lymphoblasts from patients with Bethlem myopathy (COL6A1), familial adenomatous polyposis (APC), and breast cancer (BRCA1). The greatly increased sensitivity and reliability of this RT-PCR/PTT protocol has broad applicability to the many genetic diseases in which only blood-derived cells may be readily available for analysis.
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Affiliation(s)
- J F Bateman
- Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Parkville, Victoria, Australia.
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16
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Bateman JF, Freddi S, Lamandé SR, Byers P, Nasioulas S, Douglas J, Otway R, Kohonen-Corish M, Edkins E, Forrest S. Reliable and sensitive detection of premature termination mutations using a protein truncation test designed to overcome problems of nonsense-mediated mRNA instability. Hum Mutat 1999. [DOI: 10.1002/(sici)1098-1004(1999)13:4<311::aid-humu8>3.3.co;2-g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Gardner RJ, Kool D, Edkins E, Walpole IR, Macrae FA, Nasioulas S, Scott WJ. The clinical correlates of a 3' truncating mutation (codons 1982-1983) in the adenomatous polyposis coli gene. Gastroenterology 1997; 113:326-31. [PMID: 9207294 DOI: 10.1016/s0016-5085(97)70111-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Familial adenomatous polyposis (FAP) is caused by mutations in the adenomatous polyposis coli (APC) gene, and different mutations may produce different clinical pictures. Most mutations occur in the 5' half of the gene, and mutations toward the 3' end are rare. The aim of this study was to document the phenotypes in a family with a truncating mutation at codons 1982-1983, one of the most 3' mutations on record. Colonic polyps in this family were much less numerous, and their growth was delayed compared with the classical FAP picture, and malignant degeneration occurred considerably later. Two individuals had sparse colonic but profuse gastric fundic gland polyposis. Gardner's syndrome stigmata were variable, and a desmoid tumor was recorded in 1 person.
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Affiliation(s)
- R J Gardner
- Murdoch Institute, Royal Children's Hospital, Melbourne, Vic. Australia
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Kohonen-Corish M, Ross VL, Doe WF, Kool DA, Edkins E, Faragher I, Wijnen J, Khan PM, Macrae F, St John DJ. RNA-based mutation screening in hereditary nonpolyposis colorectal cancer. Am J Hum Genet 1996; 59:818-24. [PMID: 8808596 PMCID: PMC1914793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Hereditary nonpolyposis colorectal cancer (HNPCC) is a cancer syndrome inherited in an autosomal dominant fashion. Four susceptibility genes are known, which code for DNA mismatch repair enzymes. The purpose of this study was to identify the HNPCC gene defects in a cohort of Australian HNPCC families and to evaluate the use of RNA-based screening methods. Six mutations were identified, four in the hMLH1 gene and two in hMSH2, by using a combination of DNA-based and RNA-based methods. One of the hMLH1 defects was a missense mutation, and the other five mutations would be expected to result in a shortened protein. These included a rare type of mRNA splicing mutation in hMLH1 exon 17. By use of reverse-transcriptase (RT) PCR, defective transcripts were detectable for three of the hMLH1 mutations but not for the fourth one, which was predicted to cause skipping of exon 15. Furthermore, many more alternative transcripts for the hMLH1 gene were found than previously described, and these were more abundant in the RNA samples prepared from whole blood than from lymphoblastoid cell lines. This confounded RNA-based screening for HNPCC mutations, because it was difficult to determine which aberrant RT-PCR fragment was the real hereditary defect. One of the splice-site mutations reported here causes skipping of exons 9 and 10, which also occurs as an alternative transcript. When the protein-truncation test was used, the results were indistinguishable between the patients in this family and controls. Other aberrant transcripts were also observed that varied in size between individuals but were unrelated to the hereditary defects. This study has important implications for the design of reliable diagnostic tests for HNPCC gene defects.
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Affiliation(s)
- M Kohonen-Corish
- Division of Molecular Medicine, John Curtin School of Medical Research, Australian National University, Canberra.
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Yeoh GC, Edkins E, Mackenzie K, Fuller S, Mercer JF, Dahl HH. The development of phenylalanine hydroxylase in rat liver; in vivo, and in vitro studies utilizing fetal hepatocyte cultures. Differentiation 1988; 38:42-8. [PMID: 3181650 DOI: 10.1111/j.1432-0436.1988.tb00590.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [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: 01/04/2023]
Abstract
Phenylalanine hydroxylase (PAH) is first detected in the liver of 21-day-gestation rats. Activity increases after birth, and in 10-day-postnatal rats it is about equal to that observed in the adult. The developmental pattern for the enzyme is reflected in the level of its mRNA determined by hybridization to 32P-cDNA, which is specific for PAH. Studies with cultured adult hepatocytes reveal that the addition of dexamethasone and dibutyryl cAMP to the medium maximizes the yield of enzyme. Hepatocytes derived from 21-day-gestation rats will produce enzyme in cultures maintained in medium supplemented with dexamethasone and dibutyryl cAMP. However, less mature cells, taken from 19-day-gestation rats do not produce measurable levels of enzyme activity. The relative amounts of PAH mRNA in the respective cultures reflect the level of PAH activity. Interestingly, after 3 days of culture, 19-day-gestation hepatocytes can be shown to express PAH mRNA. Therefore, with respect to the expression of PAH, we conclude that 19-day-gestation liver cells will differentiate during culture.
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Affiliation(s)
- G C Yeoh
- Department of Physiology, University of Western Australia, Nedlands
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Yeoh GC, Wassenburg JA, Edkins E, Oliver IT. Synthesis and secretion of albumin and transferrin by foetal rat hepatocyte cultures. Biochim Biophys Acta 1979; 565:347-55. [PMID: 518885 DOI: 10.1016/0005-2787(79)90210-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hepatocytes derived from foetal rat liver synthesize and secrete albumin and transferrin when maintained in primary culture. These proteins are produced for at least seven days under the conditions of culture. Studies on hepatocyte cultures derived from 12, 13, 14, 15 and 19-day foetal rats show that the maximal cellular rate of secretion of both proteins increases about 50-fold over this period. The maximal rate of albumin secretion in all cultures is achieved after one day in culture and decreases in hepatocytes from early foetuses after the fourth to sixth day in culture. Transferrin secretion by hepatocytes from 12 to 15 day foetuses increases markedly during the second day of culture and is relatively constant thereafter. In contrast, secretion of transferrin by hepatocytes from 19-day foetuses is constant from the first day of culture. The results show that both albumin and transferrin are synthesized and secreted by the foetal liver as early as the twelfth day of gestation. The increase in the rate of transferrin secretion that occurs during culture of hepatocytes from 12 to 15 day foetuses may reflect the development of a secretory mechanism that is different from that for albumin.
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Räihä NC, Edkins E. Insulin antagonism of dexamethasone-induced increase or argininosuccinate synthetase and argininosuccinate lyase activities in cultured fetal rat liver. Biol Neonate 1977; 31:266-70. [PMID: 562198 DOI: 10.1159/000240974] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In fetal rat liver explants maintained in organ culture, the addition of dexamethasone (4.6 X 10(-6)M) produced a 2- to 3-fold increase in the activity of argininosuccinate synthetase and in argininosuccinate lyase after 24 and 48 h of incubation. Insulin (1.8 X 10(-6)M) alone had no effect on the enzyme activities, but when incubated together with dexamethasone, it abolished the dexamethasone-induced increase of argininosuccinate synthetase and inhibited the argininosuccinate lyase activity by 80%, at 24 h. At 48 h, the inhibition of both enzyme activities was 68%. The antagonistic effect of insulin on the dexamethasone action is discussed in relation to the mechanism of perinatal enzyme induction. Hyperinsulinemia may interfere with the development of enzyme systems during the perinatal period. This could have relevance in the care of infants of diabetic mothers.
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Edkins E, Rïhä NC. Changes in the activities of the enzymes of urea synthesis caused by dexamethasone and dibutyryladenosine 3':5'-cyclic monophosphate in foetal rat liver maintained in organ culture. Biochem J 1976; 160:159-62. [PMID: 188416 PMCID: PMC1164217 DOI: 10.1042/bj1600159] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Liver explants from 19-day foetal rats were maintained in organ culture, in a defined medium, for up to 48h. Both 6-N,2'-O-dibutyryl cyclic AMP, in the presence of theophylline, and dexamethasone caused an increase in the activities of carbamoyl phosphate synthase, argininosuccinate synthetase, argininosuccinate lyase and arginase. These increases could be abolished by simultaneously incubating the explants with cycloheximide. No change in the activity of ornithine transcarbamoylase was found with either hormone. Previous work has shown that injection of corticosteroids into 19.5-day foetal rats in utero did not cause an increase in the arginine synthetase system. Present results suggest that this lack of effect is not due to any incompetence of the foetal rat liver at this stage to respond to this agent. The observations on ornithine transcarbamoylase activity suggest that this enzyme is induced in the liver of the perinatal rat by neither corticosteroids nor hormones acting via cyclic AMP, and it may be that all the enzymes of the urea cycle are induced physiologically by an agent or agents as yet unidentified.
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Edkins E, Hansen IA. Wax esters secreted by the uropygial glands of some Anseriformes. Comp Biochem Physiol B 1976; 53:93-5. [PMID: 1248224 DOI: 10.1016/0305-0491(76)90104-8] [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: 12/26/2022]
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Edkins E, Hansen IA. Wax esters secreted by the uropygial glands of some Australian waterfowl, including the magpie goose. Comp Biochem Physiol B 1972; 41:105-12. [PMID: 5075378 DOI: 10.1016/0305-0491(72)90012-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Hansen IA, Tang BK, Edkins E. Erythro-Diols of wax from the uropygial gland of the turkey. J Lipid Res 1969; 10:267-70. [PMID: 5785001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The uropygial (preen) gland secretion of the domestic turkey resembles that of the chicken in consisting mainly of a diester wax. The esterified fatty acids are saturated; they include all members of the n-C(10)-C(20) homologous series, the C(17)-C(19) acids together accounting for 60% of the total. There are four major 2,3-n-alkanediols, C(19)-C(23), all having the erythro configuration as determined by thin-layer chromatography on boric acid-silica gel and by gas-liquid chromatography. The chicken uropygiols, by contrast, contain erythro and threo diols. It is suggested that the chicken possesses two biosynthetic enzyme systems for the diols, the turkey only one
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Masters PL, Edkins E. Micro- and ultramicro-methods in paediatric pathology. Paediatr Indones 1965; 5:Suppl:892-8. [PMID: 5873776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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