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Zhang Y, Kang Y, Qin Y, Zhou Z, Lei M, Guo H. Research Note Genetic diversity of endangered Polyporus umbellatus from China assessed using a sequence-related amplified polymorphism technique. GENETICS AND MOLECULAR RESEARCH 2012; 11:4121-9. [DOI: 10.4238/2012.december.3.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Doi A, Satomi K, Okamura H, Noda T, Aiba T, Shimizu W, Aihara N, Kamakura S, Baez-Escudero JL, Dave AS, Sasaridis CM, Valderrabano M, Nitsche B, Braunschweig F, Gaspar T, Doering M, Richter S, Eitel C, Hindricks G, Piorkowski C, Kelemen K, Lugenbiel P, Bikou O, Becker R, Katus HA, Thomas D, Askar SFA, Ramkisoensing AA, Schalij MJ, Bingen BO, Van Der Laarse A, Atsma DE, Ypey DL, Pijnappels DA, Jeevaratnam K, Rewbury R, Zhang Y, Guzadhur L, Grace AA, Lei M, Huang CLH. Young Investigator Awards Session. Europace 2011. [DOI: 10.1093/europace/eur226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lei M, Rickard D, Crawshaw J, Clark C, Adams E, Gianolini S, Jordan T, Whitaker S, Nisbet A, Urbano TG. 1162 poster FDG-PET GUIDED DOSE-PAINTING IN OROPHARYNGEAL SCC: WHAT IS THE EFFECT OF SEGMENTATION TECHNIQUE ON ESTIMATED TCP? Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71284-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jeevaratnam K, Tee SP, Zhang Y, Guzadhur Y, Duehmke R, Grace AA, Lammers W, Lei M, Huang CLH. 16 Delayed conduction and its implications in murine SCN5a+/- hearts: independent and interacting effects of genotype, age and sex. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/hrt.2010.213496.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ying F, Shunsen Y, Yang C, Lei M, Shangjun L, Yonglin H, Weimin L. e0078 The effect of acute atorvastatin on cardioprotection of ischaemic postconditioning in diabetes mellitus. Heart 2010. [DOI: 10.1136/hrt.2010.208967.78] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Lei M, Clark C, Adams E, Freeman K, Jamieson C, Dabbs M, Jordan T, Whitaker S, Nisbet A, Guerrero Urbano T. CBCT Evaluation of Dose-Volume Changes in Contralateral Parotid Gland during Head and Neck IG-IMRT. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Barthelemy O, Silvain J, Brieger D, Bellemain-Appaix A, Cayla G, Beygui F, Lancar R, Collet JP, Mercadier A, Montalescot G, Cha KS, Nam YH, Kim JH, Park SY, Park TH, Kim MH, Kim YD, Lee HC, Ahn MS, Hong TJ, Blanco R, Blanco F, Szarfer J, Garcia Escudero A, Gigena G, Gagliardi J, Rodriguez A, Sarmiento R, Affatatto S, Riccitelli M, Petris A, Datcu MD, Pop C, Radoi M, Arsenescu-Georgescu C, Petrescu I, Petrescu L, Serban L, Nechita E, Tatu-Chitoiu G, Tatu-Chitoiu G, Dorobantu M, Benedek I, Craiu E, Sinescu C, Ionescu DD, Radoi M, Pop C, Ginghina C, Minescu B, Izzo A, Mantovani P, Tomasi L, Dall'oglio L, Bonatti S, Rosiello R, Romano M, Agostini F, Zanini R, Zhao ZY, Wu YJ, Li JJ, Yany YJ, Qian HY, Tang YD, Timoteo AT, Toste A, Lousinha A, Ramos R, Oliveira JA, Ferreira ML, Ferreira RC, Cabades C, Diez Gil JL, Aguar P, Sanmiguel D, Lopez-March A, Marmol R, Guerra L, Girbes V, Ferrando J, Rincon De Arellano A, Timoteo AT, Ramos R, Toste A, Oliveira JA, Patricio L, Ferreira ML, Ferreira RC, Blondal M, Ainla T, Marandi T, Eha J, Timoteo AT, Oliveira MM, Silva MN, Cunha PS, Feliciano J, Silva S, Ferreira RC, Silva B, Oliveira R, Caires G, Drumond A, Araujo J, Suarez-Barrientos A, Vivas D, Castro-Ferreira F, Nunez-Gil I, Franco E, Kanovsky J, Garcia-Rubira JC, Fernandez-Ortiz A, Fuster V, Macaya C, Ibanez Cabeza B, Salinger S, Perisic Z, Milic D, Stanojlovic T, Apostolovic S, Kala P, Obradovic S, Djordjevic-Radojkovic D, Damjanovic M, Koracevic G, Kostic T, Khan MA, Vrapi F, Naeem K, Davar J, Hristova K, Parenica J, Hristova K, Pencheva G, Radeva R, Milanov S, Trambaiolo P, Poli M, De Luca M, Lukic V, Mustilli M, Corsi F, Poloczek M, Simonetti M, Ferraiuolo G, Fareed A, Oraby M, Nasr GM, Maklady F, Dupouy P, Sorensen JT, Terkelsen CJ, Lassen JF, Prymusova K, Trautner S, Christensen EF, Nielsen TT, Botker HE, Andersen HR, Thygesen KA, Checco L, Usmiani T, Sbarra PL, Boffini M, Kubkova L, Saviolo R, Grasso C, Conrotto F, Marchetti M, Rinaldi M, Marra S, Moscoso Costa F, Ferreira J, Raposo L, Aguiar C, Spinar J, Trabulo M, Silva JA, Faria R, Mimoso J, Marques N, Trigo J, Marques V, Gomes V, Swiatkowski A, Kowalczyk J, Olinic D, Lenarczyk R, Chodor P, Honisz G, Was T, Swierad M, Sredniawa B, Polonski L, Kalarus Z, Postadzhiyan AS, Velinov H, Homorodean C, Velchev V, Hazarbasanov D, Apostolova M, Finkov B, Petrovic M, Panic G, Jovelic A, Canji T, Srdanovic I, Popov T, Ober M, Golubovic M, Pavlovic K, Cemerlic-Adjic N, Bro-Jeppesen J, Kjaergaard J, Wanscher MC, Nielsen SL, Rasmussen LS, Hassager C, Bro-Jeppesen J, Olinic M, Kjaergaard J, Wanscher MC, Rasmussen LS, Hassager C, Khan M, Crolla E, Morley H, Akeroyd L, Beaini Y, Morley C, Andrioaia C, Dores H, Leal S, Rosario I, Abecasis J, Monge J, Correia MJ, Arroja I, Fonseca C, Aleixo A, Silva A, Condac A, Bekeredjian RH, Krumsdorf U, Rottbauer W, Katus HA, Pleger S, Providencia RA, Silva J, Barra S, Gomes PL, Seca L, Masmoudi M, Botelho A, Quintal N, Mota P, Leitao-Marques AM, Silva B, Santos N, Cafe H, Faria P, Serrao M, Gomes S, Berdaoui B, Oliveira R, Caires G, Drumond A, Araujo J, Roussel JC, Senage T, Perigaud C, Habash O, Michel M, Treilhaud M, Labidi S, Despins P, Trochu JN, Baron O, Duveau D, Kitsiou AN, Giannakopoulos K, Papadimitriou G, Karas S, Babic Z, Nikolic Heitzler V, Tapia Ballesteros C, Milicic D, Bergovec M, Raguz M, Mirat J, Strozzi M, Plazonic Z, Giunio L, Steiner R, Freynhofer M, Brozovic I, Hernandez Luis C, Bruno V, Leherbauer L, Djurkovic M, Jarai R, Willheim M, Huebl W, Wojta J, Huber K, Vogel B, Hahne S, Sandin MG, Kozanli I, Kalla K, Jarai R, Freynhofer M, Smetana P, Geppert A, Unger G, Huber K, Simoes Marques Assuncao Caetano AF, Barra S, Vegas JM, Silva J, Providencia R, Faustino C, Botelho A, Mota P, Leitao Marques A, Ariza Sole A, Sanchez Salado JC, Lorente Tordera V, Martinez Garcia V, Andion R, Salazar Mendiguchia Y Garcia J, Gomez Hospital JA, Maristany Daunert J, Berdejo Gago FJ, Esplugas Oliveras E, Brzozowska-Czarnek A, Urbanik A, Kakouros N, Kakouros S, Lekakis J, Martinez N, Rizos J, Kokkinos D, Venevtseva J, Melnikov A, Valiahmetov M, Gomova T, Perelomova I, Ferrer Hita JJ, Bosa-Ojeda F, Sanchez-Grande-Flecha A, Gonzalez IA, Yanes-Bowden G, Vargas-Torres MJ, Rodriguez-Gonzalez A, Rubio-Iglesias-Garcia C, Dominguez-Rodriguez A, Enjuanes-Grau C, Marrero-Rodriguez F, Parepa I, Suceveanu AI, Suceveanu A, Alvarado M, Mazilu L, Alexandrescu L, Dumitru E, Miu V, Jitari V, Craiu E, Voinea FL, Balachandran KP, Schofield R, Sankaranarayanan R, Amat IJ, Helm K, Crowe C, Singh R, Mcdonald J, Chuen MJ, Kobusiak-Prokopowicz M, Preglowska M, Mysiak A, Doi T, Sakoda T, San Roman JA, Akagami T, Naka T, Tsujino T, Masuyama T, Ohyanagi M, Kume N, Mitsuoka H, Hayashida K, Tanaka M, Biasucci LM, Garcia Gonzalez MJ, Della Bona R, Biasillo G, Leo M, Zaninotto M, Plebani M, Crea F, Biasucci LM, Dellabona R, Leo M, Biasillo G, Arroyo Ucar E, Zaninotto M, Plebani M, Crea F, Cavusoglu Y, Gok B, Birdane A, Demirustu C, Gorenek B, Unalir A, Ata N, Hernandez Garcia C, Timuralp B, Nikulina N, Yakushin SS, Nikulina N, Yakushin SS, Furmenko GI, Akinina SA, Dores H, Ingrid R, Leal S, Dorta Martin M, Correia MJ, Bronze L, Monge J, Arroja I, Fonseca C, Aleixo A, Silva A, Djambazov S, Zhivkov A, Maznev I, Marrero Rodriguez F, Ingeliev M, Slavov R, Cvetkova N, Patarinski V, Groch L, Horak J, Dimitrov N, Hayrapetyan HG, Raposeiras Roubin S, Abu-Assi E, Dragu R, Cabanas-Grandio P, Agra-Bermejo R, Garcia-Acuna JM, Pena-Gil C, Gonzalez-Juanatey JR, Barra SNC, Silva J, Providencia R, Seca L, Gomes P, Kapeliovich M, Leitao Marques A, Daly MJ, Mc Keag NA, Mc Cann CJ, Cardwell C, Young IS, Adgey AAJ, Mikhalchikova N, Burova N, Zaccaria M, Hammerman H, Palmisano P, Palumbo V, Ciccone MM, Favale S, Chen KC, Yin WH, Liu JH, Goncalves S, Santos JF, Amador P, Silva D, Soares LN, Zahidova K, Guliyev F, Zahidov N, Carrilho-Ferreira P, Cortez-Dias N, Marques JS, Silva D, Jorge C, Robalo Martins S, Cortez-Dias N, Almeida Ribeiro M, Calisto C, Carvalho De 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Hnatek T, Kamenik L, Sedlon P, Luxova J, Steuerova B, Skvaril J, Cernohous M, Zavoral M, Ratkovic N, Milicevic P, Nemanja Djenic NR, Aleksandra Jovelic AJ, Slobodan Obradovic SO, Branko Gligic BG, Kletsiou E, Giannakopoulou M, Bozas E, Iliodromitis EK, Anastasiou-Nana M, Papathanassoglou EDE, Panic M, Anton M, Anton G, Muraru M, Stanojlovic T, Salinger Martinovic S, Radosavljevic M, Glasnovic J, Stanojevic D, Zivkovic M, Cortez-Dias N, Stankovic I, Jorge C, Calisto C, Silva D, Carrilho-Ferreira P, Silva Marques J, Robalo Martins S, Pessoa T, Fiuza M, Lopes MG, Aspromonte N, Milicevic D, Ronco C, Tubaro M, Santini M, Colivicchi F, Aiello A, Cruz D, Anzoletti Boscolo A, Vianello G, Valle R, Cavusoglu Y, Kalezic T, Parspour A, Birdane A, Tek M, Gorenek B, Unalir A, Ata N, Lee WP, Ong BB, Watkins S, Datta D, Kafedzic S, Halcox JPJ, Providencia RA, Barra S, Gomes PL, Seca L, Silva J, Botelho A, Quintal N, Pais JR, Mota P, Ilic I, Leitao-Marques AM, Nikishin AG, Pirnazarov MM, Nurbaev TA, 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Van Belleghem Y, Bouchez S, Martens F, Herck I, De Pauw M, Spinar J, Ludka O, Sepsi M, Miklik R, Dusek L, Tomcikova D, Marques N, Mimoso J, Gomes V, Garcia-Acuna JM, Aguiar-Souto P, Raposeiras Roubin S, Agra-Bermejo R, Jacquet M, Abu-Assi E, Gonzalez-Juanatey JR, Ibatov A, Labrova R, Spinar J, Karlik R, Kanovsky J, Lokaj P, She Q, Deng SB, Huang SH, Gu LJ, Rong JIAN, Wu ZK, Li Y, Zhang J, Parascan L, Campanile A, Spinelli L, Santulli G, Ciccarelli M, De Gennaro S, Assante Di Panzillo E, Trimarco B, Iaccarino G, Bobescu E, Radoi M, Datcu G, Dobreanu D, Doka B, Charniot JC, Cosson C, Albertini JP, Bittar R, Giral P, Cherfils C, Guillerm E, Bonnefont-Rousselot D, Craiu E, Rusali A, Cojocaru L, Parepa I, Koizumi T, Iida S, Sato J, Kikutani T, Muramatsu T, Nishimura S, Komiyama N, Lee WP, Ong BB, Haralambos K, Townsend D, Rees JAE, Williams EJ, Halcox JP, Mcdowell I, Damjanovic M, Koracevic G, Djordjevic-Radojkovic D, Pavlovic M, Krstic N, Ciric-Zdravkovic S, Stojkovic A, Perisic Z, Apostolovic S, Faustino A, Seca L, Barra S, Caetano F, Providencia R, Silva J, Gomes P, Costa G, Costa M, Leitao-Marques A, Volkova AL, Arutyunov GP, Bylova NA, Dayter II, Jao YTFN, Fang CC, Chen Y, Yu CL, Wang SP, Valencia J, Perez-Berbel P, Ruiz-Nodar JM, Pineda J, Bordes P, Quintanilla M, Mainar V, Sogorb F, Santos N, Serrao M, Cafe H, Silva B, Oliveira R, Caires G, Drumond A, Araujo J, Providencia RA, Gomes PL, Seca L, Barra S, Silva J, Faustino A, Caetano F, Pais JR, Mota P, Leitao-Marques AM, Farhan S, Jarai R, Tentzeris I, Vogel B, Freynhofer MK, Wojta J, Huber K, Poli M, Trambaiolo P, Corsi F, De Luca M, Mustilli M, Lukic V, Simonetti M, Ferraiuolo G, Lettino M, Casella G, Conte MR, De Luca L, Geraci G, Ceravolo R, Milo M, Pani A, Trambaiolo P, Fradella G, Schratter A, Thiele H, Klemm T, Demmin K, Lehmann D, Mende M, Schuler G, Pittl U, Chernova A, Nikulina SU, Naruke T, Inomata T, Yanagisawa T, Maekawa E, Mizutani T, Shinagawa H, Nishii M, Takeuchi I, Takehana H, Izumi T, Paulo C, Mascarenhas J, Patacho M, Pimenta J, Bettencourt P, Nardai S, Szabo GY, Berta B, Edes I, Merkely B, Delgado Silva J, Seca L, Baptista R, Providencia R, Mota P, Costa M, Leitao-Marques A, Faria R, Trigo J, Gago P, Mimoso J, Marques N, Gomes V, Gheorghe G, Nanea IT, Cristea A, Almarichi S, Martins H, Saraiva F, Baptista R, Jorge E, Mendes PL, Monteiro P, Costa S, Franco F, Providencia LA, Nanea T, Gheorghe GS, Visan S, Paun N, Gaber R, Gaber R, Delewi R, Nijveldt R, De Bruin HA, Hirsch A, Van Der Laan A, Bouma BJ, Tijssen JPG, Van Rossum AC, Zijlstra F, Piek JJ, Rus H, Radoi M, Donea M, Ciurea C, Ifteni G, Casolo G, Chioccioli M, Magnacca M, Del Meglio J, Comella A, Baratto M, Lera J, Salvadori L, Tessa C, Vignali C, Keca Z, Momcilov Popin T, Panic G, White R, Mateen F, Weaver A, Dragu R, Agmon Y, Kapeliovich M, Hammerman H, Timoteo AT, Lousinha A, Santos N, Oliveira JA, Ferreira ML, Ferreira RC, Okisheva E, Tsaregorodtsev D, Sulimov V, Amat Santos IJ, Gonzalez IA, Hernandez C, Sandin MG, Tapia C, Andion R, Alvarado M, Campo A, San Roman JA, Fredman D, Svensson L, Rosenqvist M, Tadel-Kocjancic S, Radsel P, Knafelj R, Gorjup V, Noc M, Zima E, Jenei ZS, Kovacs E, Osztheimer I, Szabo GY, Molnar L, Horvath A, Becker D, Geller L, Merkely B, Maggi R, Furukawa T, Viscardi V, Brignole M, Leal SRN, Dores H, Rosario I, Monge J, Carvalho MJ, Arroja I, Leitao A, Fonseca C, Aleixo A, Silva A, Keuleers S, Herijgers P, Herregods MC, Budts W, Dubois C, Meuris B, Verhamme P, Flameng W, Van De Werf F, Adriaenssens T, Badran H, Elnoamany M, Lolah T, Tatu-Chitoiu G, Dorobantu M, Benedek I, Craiu E, Sinescu C, Ionescu DD, Olariu C, Radoi M, Pop C, Macarie C, Mollik MAH, Hassan AI, Paul TK, Haque MZ, Jahan R, Rahmatullah M, Khatun MA, Rahman MT, Chowdhury MH, Bustamante Munguira J, Tamayo E, Garcia-Cuenca I, Bustamante E, Gualis J, Gomez-Martinez ML, Florez S, Gomez-Herreras JI, Ramirez Rodriguez R, Ramirez Rodriguez AM, Garcia-Bello MA, Hernadez Ortega E, Caballero Dorta E, Garcia Quintana A, Piro Mastraccio V, Medina Fernandez Aceytuno A, Assanelli E, De Metrio M, Rubino M, Lauri G, Cabiati A, Campodonico J, Grazi M, Moltrasio M, Marana I, Marenzi G, Lovlien M, Schei B, Picon-Heras R, Acebal C, Garcia Rubira JC, Vivas Balcones D, Nunez-Gil I, Ruiz-Mateos B, Ibanez B, Fernandez-Ortiz A, Vintila VD, Enescu OA, Stoicescu CI, Udroiu C, Cinteza M, Tatu - Chitoiu G, Vinereanu D, Fresco C, De Biasio M, Muser D, Sappa R, Morocutti G, Bernardi G, Proclemer A, Fontanella B, Affatato A, Ciccarese C, Sacchini M, Volpini M, Bianchetti F, Verzura G, Dei Cas L, Pudil R, Blaha V, Vojacek J, Paraskevaidis I, Ikonomidis I, Parissis J, Papadopoulos C, Stasinos V, Bistola V, Anastasiou-Nana M, Shochat M, Shotan A, Kazatsker M, Gurovich V, Asif A, Noiman E, Levy Y, Blondhaim D, Rabinovich P, Meisel S, Koracevic G, Stojkovic A, Petrovic S, Pavlovic M, Glasnovic J, Tomasevic M, Krstic N, Djordjevic-Radojkovic D, Sakac D, Obradovic S, Londono Sanchez O, Pacreu S, Torres L, Mihaylov G, Shaban GM, Trendafilova E, Krasteva V, Mudrov TS, Didon JP, Panageas V, Vlachos N, Pernat A, Radan I, Mozina H, Izzo A, Tomasi L, Mantovani P, Dall'oglio L, Pepi P, Romano M, Cionini F, Baccaglioni N, Zanini R, Viertel A, Havers J, Ballard G, Groenefeld G, Santos N, Branco LM, Oliveira JA, Ferreira L, Timoteo AT, Fiarresga A, Feliciano J, Ramos R, Ferreira RC, Izzo A, Tomasi L, Mantovani P, Pepi P, Lettieri L, Dall'oglio L, Reggiani A, Zanini R, Garcia Gonzalez MJ, Arroyo Ucar E, Hernandez Garcia C, Juarez Prera R, Blanco Palacios G, Dorta Martin M, Marrero Rodriguez F, Martin AC, Manzo Silberman S, Chaib A, Varenne O, Allouch P, Salengro E, Jegou A, Margot O, Spaulding C, Diego A, De Miguel A, Cuellas C, Fraile E, Martin J, Vega B, Bangueses R, Fernandez-Vazquez F, Perez De Prado A, Rosario I, Dores H, Leal S, Correia MJ, Monge JC, Arroja I, Abecasis J, Aleixo A, Silva A, Dragu R, Agmon Y, Kapeliovich M, Hammerman H, Garcia-Garcia C, Subirana I, Sala J, Bruguera J, Valle V, Sanz G, Fiol M, Aros F, Marrugat J, Elosua R, Barra SNC, Silva J, Gomes P, Providencia R, Seca L, Leitao Marques A, Zhao ZY, Wu YJ, Li JJ, Yang YJ, Xu B, Tang YD, Song GY, G RL, Panic M, Milicevic P, Stankovic I, Ilic I, Kafedzic S, Kalezic T, Milicevic D, Aleksic A, Putnikovic B, Neskovic A, Serpytis P, Rucinskas K, Kalinauskas A, Karvelyte N, Santos De Sousa CI, Ferreira S, Calaca J, Lousada N, Palma Reis R, Gualandro DM, Seguro LFBC, Braga FGM, Silvestre OM, Lage RL, Fabri J, Oliveira MT, Urbano Moral JA, Torres Llergo J, Solanilla Rodriguez R, Sanchez Gonzalez A, Martinez Martinez A, Den Uil CA, Lagrand WK, Van Der Ent M, Jewbali LSD, Cheng JM, Spronk PE, Simoons ML, Mornos C, Petrescu L, Dragulescu D, Ionac A, Guardado J, Azevedo O, Fernandes M, Canario-Almeida F, Sanfins V, Pereira A, Almeida J, Kaplunova VU, Belenkov YN, Privalova EV, Fomin AA, Suvorov AY, Goodkova A, Rubakova MG, Kuznetsova IA, Semernin EN, Keshavarzi F, Kojuri J, Mikhailov VM, Vezhenkova IV, Goodkova AYA, Jarai R, Pavlovic I, Farhan S, Schwarz M, Jakl G, Huber K, Jarai R, Schwarz M, Smetana P, Jakl G, Perkmann T, Farhan S, Huber K, Mayr A, Mair J, Klug G, Schocke M, Trieb T, Jaschke W, Pachinger O, Metzler B, Bronze Carvalho L, Azevedo J, Andrade ML, Arroja I, Relvas MJ, Coucello J, Monge J, Morais G, Seabra M, Aleixo A, Afamefule F, Luaces Mendez M, Teijeiro-Mestre R, Nunez-Gil IJ, Leco-Gil N, Madronal-Cerezo E, Zannin I, Ruiz J, Orynchak MA, Vakalyuk II, Vakalyuk IP, Berezin A, Panasenko T, Cavusoglu Y, Cavusoglu A, Unluoglu I, Tek M, Demirustu C, Gorenek B, Unalacak M, Birdane A, Yuksel F, Ata N, Lee WP, Halcox JPJ, Cavusoglu Y, Beyaztas A, Entok E, Demirustu C, Uslu I, Birdane A, Gorenek B, Ata N, Schaefer A, Flierl U, Seydelmann N, Bauersachs J, Calmac L, Craiu E, Ionescu DD, Nanea T, Pop C, Marinescu S, Macarie C, Tatu Chitoiu G, Fruntelata AG, Dorobantu M, Hamdi S, Maazoun Y, Neji A, Farhat O, Majdoub M, Ben Hamda K, Maatouk F, Balanescu SM, Benedek I, Nedelciuc I, Deleanu D, Dobreanu D, Olinic D, Petrescu L, Ortan F, Mot S, Tatu Chitoiu G, Sinnaeve PR, Moreels S, Adriaenssens T, Dubois C, Coosemans M, Vydt T, Desmet W, Sinnaeve PR, Moreels S, Vydt T, Dubois C, Adriaenssens T, Coosemans M, Desmet W, Poli M, Trambaiolo P, Corsi F, De Luca M, Mustilli M, Lukic V, Simonetti M, Ferraiuolo G, Tobing D, Rifnaldi R, Juzar D, Firdaus I, Dharma S, Irmalita I, Kalim H, Bejiqi R, Retkoceri R, Bejiqi H, Kryeziu L, Kelmendi M, Borovci SH, Victor SM, Gnanaraj A, Deshmukh R, Mullasari AS, Yahalom M, Kaiyal RS, Roguin N, Bornstein J, Atar S, Farah R, Seca LF, Faustino A, Silva J, Providencia R, Gomes P, Barra S, Caetano F, Costa M, Leitao Marques AM, Margato R, Sousa P, Ribeiro H, Rocha L, Correia A, Moreira JI, Carvalho HC, Afifi M, Abed N, Santos N, Serrao M, Cafe H. Abstracts. Eur Heart J Suppl 2010. [DOI: 10.1093/eurheartj/suq023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lei M, Huiliang L, Dongxing M, Jianping L, Wei H, Yong Y. e0506 Application of overlapped sirolimus-eluting stents in treatment of long coronary arteries lesion. BRITISH HEART JOURNAL 2010. [DOI: 10.1136/hrt.2010.208967.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Jeevaratnam K, Zhang Y, Guzadhur L, Duehmke RM, Lei M, Grace AA, Huang CLH. Differences in sino-atrial and atrio-ventricular function with age and sex attributable to the Scn5a+/- mutation in a murine cardiac model. Acta Physiol (Oxf) 2010; 200:23-33. [PMID: 20331542 DOI: 10.1111/j.1748-1716.2010.02110.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM To investigate the interacting effects of age and sex on electrocardiographic (ECG) features of Scn5a(+/-) mice modelling Brugada syndrome. METHODS Recordings were performed on anaesthetized wild-type (WT) and Scn5a(+/-) mice and differences attributable to these risk factors statistically stratified. RESULTS Scn5a(+/-) exerted sex-dependent effects upon sino-atrial function that only became apparent with age. RR intervals were greater in old male than in old female Scn5a(+/-). Atrio-ventricular (AV) conduction was slower in young female mice, whether WT and Scn5a(+/-), than the corresponding young male WT and Scn5a(+/-). However, PR intervals lengthened with age in male but not in female Scn5a(+/-) giving the greatest PR intervals in old male Scn5a(+/-) compared with either old male WT or young male Scn5a(+/-) mice. In contrast, PR intervals were similar in old female Scn5a(+/-) and in old female WT. QTc was prolonged in Scn5a(+/-) compared with WT, and female Scn5a(+/-) compared with female WT. Age-dependent alterations in durations of ventricular repolarization relative to WT affected male but not female Scn5a(+/-). Thus, T-wave durations were greater in old male Scn5a(+/-) compared with old male WT, but indistinguishable between old female Scn5a(+/-) and old female WT. Finally, analysis for combined interactions of genotype, age and sex demonstrated no effects on P wave and QRS durations and QTc intervals. CONCLUSION We demonstrate for the first time that age, sex and genotype exert both independent and interacting ECG effects. The latter suggest alterations in cardiac pacemaker function, atrio-ventricular conduction and ventricular repolarization greatest in ageing male Scn5a(+/-).
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Lei M, Crawshaw J, Jena R, Scuffham J, Rickard D, Reise S, Hatt M, Hall J, Sellinger J, Jordan T, Whitaker S, Kirkby N, Visvikis D, Nisbet A, Guerrero Urbano M. 87 poster: Biological Gross Tumour Volume (GTVB) in Head and Neck Cancer (HNC): Comparison of Automated Segmentation Tools. Radiother Oncol 2010. [DOI: 10.1016/s0167-8140(15)34506-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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M, Ivanov A, Johnson B, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kamat S, Kanner J, Kasprzyk D, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khan R, Khazanov E, King P, Kissel JS, Klimenko S, Kocsis B, Kokeyama K, Kondrashov V, Kopparapu R, Koranda S, Kozak D, Kozhevatov I, Krishnan B, Kwee P, Landry M, Lantz B, Lazzarini A, Lei M, Leonor I, Li C, Lin H, Lindquist PE, Littenberg TB, Lockerbie NA, Lodhia D, Lormand M, Lu P, Lubinski M, Lucianetti A, Lück H, Machenschalk B, Macinnis M, Mageswaran M, Mailand K, Mandel I, Mandic V, Márka S, Márka Z, Markosyan A, Markowitz J, Maros E, Martin IW, Martin RM, Marx JN, Mason K, Matichard F, Matone L, Matzner R, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McHugh M, McIntyre G, McKechan D, McKenzie K, Mehmet M, Melissinos A, Mendell G, Mercer RA, Meshkov S, Messenger CJ, Meyers D, Miller A, Miller J, Minelli J, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Moe B, Mohanty SD, Moreno G, Mors K, Mossavi K, Mowlowry C, Mueller G, Muhammad D, Mukherjee S, Mukhopadhyay H, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Myers E, Myers J, Nash T, Nelson J, Newton G, Nishizawa A, Numata K, Ochsner E, O'Dell J, Ogin G, O'Reilly B, O'Shaughnessy R, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Pan Y, Pankow C, Papa MA, Parameshwaraiah V, Patel P, Pedraza M, Penn S, Perraca A, Petrie T, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Postiglione F, Principe M, Prix R, Quetschke V, Raab FJ, Rabeling DS, Radkins H, Raffai P, Rainer N, Rakhmanov M, Ramsunder M, Reed T, Rehbein H, Reid S, Reitze DH, Riesen R, Riles K, Rivera B, Robertson NA, Robinson C, Robinson EL, Roddy S, Rogan AM, Rollins J, Romano JD, Romie JH, Rowan S, Rüdiger A, Ruet L, Russell P, Ryan K, Sakata S, Sancho de la Jordana L, Sandberg V, Sannibale V, Santamaria L, Saraf S, Sarin P, Sathyaprakash BS, Sato S, Saulson PR, Savage R, Savov P, Scanlan M, Schediwy SW, Schilling R, Schnabel R, Schofield R, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Sears B, Seifert F, Sellers D, Sengupta AS, Sergeev A, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Sinha S, Sintes AM, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Stein LC, Strain KA, Stuver A, Summerscales TZ, Sun KX, Sung M, Sutton PJ, Takahashi H, Tanner DB, Taylor R, Taylor R, Thacker J, Thorne KA, Thorne KS, Thüring A, Tokmakov KV, Torres C, Torrie C, Traylor G, Trias M, Ugolini D, Urbanek K, Vahlbruch H, Van Den Broeck C, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vecchio A, Veitch JD, Veitch P, Villar A, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Ward H, Ward RL, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wette K, Whelan JT, Whitcomb SE, Whiting BF, Wilkinson C, Willems PA, Williams HR, Williams L, Willke B, Wilmut I, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Wu W, Yakushin I, Yamamoto H, Yan Z, Yoshida S, Zanolin M, Zhang J, Zhang L, Zhao C, Zotov N, Zucker ME, Zur Mühlen H, Zweizig J. All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data. PHYSICAL REVIEW LETTERS 2009; 102:111102. [PMID: 19392186 DOI: 10.1103/physrevlett.102.111102] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2008] [Indexed: 05/11/2023]
Abstract
We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1100 Hz and with the frequency's time derivative in the range -5 x 10{-9}-0 Hz s{-1}. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95% confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10{-24} are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10{-6}, the search is sensitive to distances as great as 500 pc.
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Abbott BP, Abbott R, Adhikari R, Ajith P, Allen B, Allen G, Amin RS, Anderson SB, Anderson WG, Arain MA, Araya M, Armandula H, Armor P, Aso Y, Aston S, Aufmuth P, Aulbert C, Babak S, Baker P, Ballmer S, Bantilan H, Barish BC, Barker C, Barker D, Barr B, Barriga P, Barsotti L, Barton MA, Bartos I, Bassiri R, Bastarrika M, Behnke B, Benacquista M, Betzwieser J, Beyersdorf PT, Bilenko IA, Billingsley G, Biswas R, Black E, Blackburn JK, Blackburn L, Blair D, Bland B, Bodiya TP, Bogue L, Bork R, Boschi V, Bose S, Brady PR, Braginsky VB, Brau JE, Brinkmann M, Brooks AF, Brown DA, Brunet G, Bullington A, Buonanno A, Burmeister O, Byer RL, Cadonati L, Cagnoli G, Camp JB, Cannizzo J, Cannon KC, Cao J, Cardenas L, Cardoso V, Caride S, Casebolt T, Castaldi G, Caudill S, Cavaglià M, Cepeda C, Chalkley E, Charlton P, Chatterji S, Chelkowski S, Chen Y, Christensen N, Clark D, Clark J, Clayton JH, Cokelaer T, Conte R, Cook D, Corbitt TRC, Cornish N, Coyne DC, Creighton JDE, Creighton TD, Cruise AM, Cumming A, Cunningham L, Cutler RM, Danzmann K, Daudert B, Davies G, Debra D, Degallaix J, Dergachev V, Desai S, Desalvo R, Dhurandhar S, Díaz M, Dickson J, Dietz A, Donovan F, Dooley KL, Doomes EE, Drever RWP, Duke I, Dumas JC, Dwyer J, Echols C, Edgar M, Effler A, Ehrens P, Ely G, Espinoza E, Etzel T, Evans M, Evans T, Fairhurst S, Faltas Y, Fan Y, Fazi D, Fejer MM, Finn LS, Flasch K, Foley S, Forrest C, Fotopoulos N, Franzen A, Frei Z, Freise A, Frey R, Fricke TT, Fritschel P, Frolov VV, Fyffe M, Garofoli JA, Gholami I, Giaime JA, Giampanis S, Giardina KD, Goda K, Goetz E, Goggin LM, González G, Gossler S, Gouaty R, Grant A, Gras S, Gray C, Gray M, Greenhalgh RJS, Gretarsson AM, Grimaldi F, Grosso R, Grote H, Grunewald S, Guenther M, Gustafson EK, Gustafson R, Hage B, Hallam JM, Hanna C, Hanson J, Harms J, Harry GM, Harstad ED, Haughian E, Hayama K, Hayler T, Heefner J, Heng IS, Heptonstall A, Hewitson M, Hild S, Hirose E, Hoak D, Holt K, Hosken D, Hough J, Huttner SH, Ingram D, Ito M, Ivanov A, Johnson B, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kamat S, Kanner J, Kasprzyk D, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khan R, Khazanov E, King P, Kissel JS, Klimenko S, Kocsis B, Kokeyama K, Kondrashov V, Kopparapu R, Koranda S, Kozak D, Kozhevatov I, Krishnan B, Kwee P, Landry M, Lantz B, Lazzarini A, Lei M, Leonor I, Li C, Lin H, Lindquist PE, Littenberg TB, Lockerbie NA, Lodhia D, Lormand M, Lu P, Lubinski M, Lucianetti A, Lück H, Machenschalk B, Macinnis M, Mageswaran M, Mailand K, Mandel I, Mandic V, Márka S, Márka Z, Markosyan A, Markowitz J, Maros E, Martin IW, Martin RM, Marx JN, Mason K, Matichard F, Matone L, Matzner R, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McHugh M, McIntyre G, McKechan D, McKenzie K, Mehmet M, Melissinos A, Mendell G, Mercer RA, Meshkov S, Messenger CJ, Meyers D, Miller A, Miller J, Minelli J, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Moe B, Mohanty SD, Moreno G, Mors K, Mossavi K, Mowlowry C, Mueller G, Muhammad D, Mukherjee S, Mukhopadhyay H, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Myers E, Myers J, Nash T, Nelson J, Newton G, Nishizawa A, Numata K, Ochsner E, O'Dell J, Ogin G, O'Reilly B, O'Shaughnessy R, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Pan Y, Pankow C, Papa MA, Parameshwaraiah V, Patel P, Pedraza M, Penn S, Perraca A, Petrie T, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Postiglione F, Principe M, Prix R, Quetschke V, Raab FJ, Rabeling DS, Radkins H, Raffai P, Rainer N, Rakhmanov M, Ramsunder M, Reed T, Rehbein H, Reid S, Reitze DH, Riesen R, Riles K, Rivera B, Robertson NA, Robinson C, Robinson EL, Roddy S, Rogan AM, Rollins J, Romano JD, Romie JH, Rowan S, Rüdiger A, Ruet L, Russell P, Ryan K, Sakata S, Sancho de la Jordana L, Sandberg V, Sannibale V, Santamaria L, Saraf S, Sarin P, Sathyaprakash BS, Sato S, Saulson PR, Savage R, Savov P, Scanlan M, Schediwy SW, Schilling R, Schnabel R, Schofield R, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Sears B, Seifert F, Sellers D, Sengupta AS, Sergeev A, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Sinha S, Sintes AM, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Stein LC, Strain KA, Stuver A, Summerscales TZ, Sun KX, Sung M, Sutton PJ, Takahashi H, Tanner DB, Taylor R, Taylor R, Thacker J, Thorne KA, Thorne KS, Thüring A, Tokmakov KV, Torres C, Torrie C, Traylor G, Trias M, Ugolini D, Urbanek K, Vahlbruch H, Van Den Broeck C, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vecchio A, Veitch JD, Veitch P, Villar A, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Ward H, Ward RL, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wette K, Whelan JT, Whitcomb SE, Whiting BF, Wilkinson C, Willems PA, Williams HR, Williams L, Willke B, Wilmut I, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Wu W, Yakushin I, Yamamoto H, Yan Z, Yoshida S, Zanolin M, Zhang J, Zhang L, Zhao C, Zotov N, Zucker ME, Zur Mühlen H, Zweizig J. All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data. PHYSICAL REVIEW LETTERS 2009. [PMID: 19392186 DOI: 10.1103/physrevd.80.042003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1100 Hz and with the frequency's time derivative in the range -5 x 10{-9}-0 Hz s{-1}. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95% confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10{-24} are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10{-6}, the search is sensitive to distances as great as 500 pc.
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Abbott BP, Abbott R, Adhikari R, Ajith P, Allen B, Allen G, Amin RS, Anderson SB, Anderson WG, Arain MA, Araya M, Armandula H, Armor P, Aso Y, Aston S, Aufmuth P, Aulbert C, Babak S, Baker P, Ballmer S, Bantilan H, Barish BC, Barker C, Barker D, Barr B, Barriga P, Barsotti L, Barton MA, Bartos I, Bassiri R, Bastarrika M, Behnke B, Benacquista M, Betzwieser J, Beyersdorf PT, Bilenko IA, Billingsley G, Biswas R, Black E, Blackburn JK, Blackburn L, Blair D, Bland B, Bodiya TP, Bogue L, Bork R, Boschi V, Bose S, Brady PR, Braginsky VB, Brau JE, Brinkmann M, Brooks AF, Brown DA, Brunet G, Bullington A, Buonanno A, Burmeister O, Byer RL, Cadonati L, Cagnoli G, Camp JB, Cannizzo J, Cannon KC, Cao J, Cardenas L, Cardoso V, Caride S, Casebolt T, Castaldi G, Caudill S, Cavaglià M, Cepeda C, Chalkley E, Charlton P, Chatterji S, Chelkowski S, Chen Y, Christensen N, Clark D, Clark J, Clayton JH, Cokelaer T, Conte R, Cook D, Corbitt TRC, Cornish N, Coyne DC, Creighton JDE, Creighton TD, Cruise AM, Cumming A, Cunningham L, Cutler RM, Danzmann K, Daudert B, Davies G, Debra D, Degallaix J, Dergachev V, Desai S, Desalvo R, Dhurandhar S, Díaz M, Dickson J, Dietz A, Donovan F, Dooley KL, Doomes EE, Drever RWP, Duke I, Dumas JC, Dwyer J, Echols C, Edgar M, Effler A, Ehrens P, Ely G, Espinoza E, Etzel T, Evans M, Evans T, Fairhurst S, Faltas Y, Fan Y, Fazi D, Fejer MM, Finn LS, Flasch K, Foley S, Forrest C, Fotopoulos N, Franzen A, Frei Z, Freise A, Frey R, Fricke TT, Fritschel P, Frolov VV, Fyffe M, Garofoli JA, Gholami I, Giaime JA, Giampanis S, Giardina KD, Goda K, Goetz E, Goggin LM, González G, Gossler S, Gouaty R, Grant A, Gras S, Gray C, Gray M, Greenhalgh RJS, Gretarsson AM, Grimaldi F, Grosso R, Grote H, Grunewald S, Guenther M, Gustafson EK, Gustafson R, Hage B, Hallam JM, Hanna C, Hanson J, Harms J, Harry GM, Harstad ED, Haughian E, Hayama K, Hayler T, Heefner J, Heng IS, Heptonstall A, Hewitson M, Hild S, Hirose E, Hoak D, Holt K, Hosken D, Hough J, Huttner SH, Ingram D, Ito M, Ivanov A, Johnson B, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kamat S, Kanner J, Kasprzyk D, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khan R, Khazanov E, King P, Kissel JS, Klimenko S, Kocsis B, Kokeyama K, Kondrashov V, Kopparapu R, Koranda S, Kozak D, Kozhevatov I, Krishnan B, Kwee P, Landry M, Lantz B, Lazzarini A, Lei M, Leonor I, Li C, Lin H, Lindquist PE, Littenberg TB, Lockerbie NA, Lodhia D, Lormand M, Lu P, Lubinski M, Lucianetti A, Lück H, Machenschalk B, Macinnis M, Mageswaran M, Mailand K, Mandel I, Mandic V, Márka S, Márka Z, Markosyan A, Markowitz J, Maros E, Martin IW, Martin RM, Marx JN, Mason K, Matichard F, Matone L, Matzner R, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McHugh M, McIntyre G, McKechan D, McKenzie K, Mehmet M, Melissinos A, Mendell G, Mercer RA, Meshkov S, Messenger CJ, Meyers D, Miller A, Miller J, Minelli J, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Moe B, Mohanty SD, Moreno G, Mors K, Mossavi K, Mowlowry C, Mueller G, Muhammad D, Mukherjee S, Mukhopadhyay H, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Myers E, Myers J, Nash T, Nelson J, Newton G, Nishizawa A, Numata K, Ochsner E, O'Dell J, Ogin G, O'Reilly B, O'Shaughnessy R, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Pan Y, Pankow C, Papa MA, Parameshwaraiah V, Patel P, Pedraza M, Penn S, Perraca A, Petrie T, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Postiglione F, Principe M, Prix R, Quetschke V, Raab FJ, Rabeling DS, Radkins H, Raffai P, Rainer N, Rakhmanov M, Ramsunder M, Reed T, Rehbein H, Reid S, Reitze DH, Riesen R, Riles K, Rivera B, Robertson NA, Robinson C, Robinson EL, Roddy S, Rogan AM, Rollins J, Romano JD, Romie JH, Rowan S, Rüdiger A, Ruet L, Russell P, Ryan K, Sakata S, Sancho de la Jordana L, Sandberg V, Sannibale V, Santamaria L, Saraf S, Sarin P, Sathyaprakash BS, Sato S, Saulson PR, Savage R, Savov P, Scanlan M, Schediwy SW, Schilling R, Schnabel R, Schofield R, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Sears B, Seifert F, Sellers D, Sengupta AS, Sergeev A, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Sinha S, Sintes AM, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Stein LC, Strain KA, Stuver A, Summerscales TZ, Sun KX, Sung M, Sutton PJ, Takahashi H, Tanner DB, Taylor R, Taylor R, Thacker J, Thorne KA, Thorne KS, Thüring A, Tokmakov KV, Torres C, Torrie C, Traylor G, Trias M, Ugolini D, Urbanek K, Vahlbruch H, Van Den Broeck C, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vecchio A, Veitch JD, Veitch P, Villar A, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Ward H, Ward RL, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wette K, Whelan JT, Whitcomb SE, Whiting BF, Wilkinson C, Willems PA, Williams HR, Williams L, Willke B, Wilmut I, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Wu W, Yakushin I, Yamamoto H, Yan Z, Yoshida S, Zanolin M, Zhang J, Zhang L, Zhao C, Zotov N, Zucker ME, Zur Mühlen H, Zweizig J. All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data. PHYSICAL REVIEW LETTERS 2009. [PMID: 19392186 DOI: 10.1103/physrevd.79.022001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1100 Hz and with the frequency's time derivative in the range -5 x 10{-9}-0 Hz s{-1}. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95% confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10{-24} are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10{-6}, the search is sensitive to distances as great as 500 pc.
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Abbott BP, Abbott R, Adhikari R, Ajith P, Allen B, Allen G, Amin RS, Anderson SB, Anderson WG, Arain MA, Araya M, Armandula H, Armor P, Aso Y, Aston S, Aufmuth P, Aulbert C, Babak S, Baker P, Ballmer S, Bantilan H, Barish BC, Barker C, Barker D, Barr B, Barriga P, Barsotti L, Barton MA, Bartos I, Bassiri R, Bastarrika M, Behnke B, Benacquista M, Betzwieser J, Beyersdorf PT, Bilenko IA, Billingsley G, Biswas R, Black E, Blackburn JK, Blackburn L, Blair D, Bland B, Bodiya TP, Bogue L, Bork R, Boschi V, Bose S, Brady PR, Braginsky VB, Brau JE, Brinkmann M, Brooks AF, Brown DA, Brunet G, Bullington A, Buonanno A, Burmeister O, Byer RL, Cadonati L, Cagnoli G, Camp JB, Cannizzo J, Cannon KC, Cao J, Cardenas L, Cardoso V, Caride S, Casebolt T, Castaldi G, Caudill S, Cavaglià M, Cepeda C, Chalkley E, Charlton P, Chatterji S, Chelkowski S, Chen Y, Christensen N, Clark D, Clark J, Clayton JH, Cokelaer T, Conte R, Cook D, Corbitt TRC, Cornish N, Coyne DC, Creighton JDE, Creighton TD, Cruise AM, Cumming A, Cunningham L, Cutler RM, Danzmann K, Daudert B, Davies G, Debra D, Degallaix J, Dergachev V, Desai S, Desalvo R, Dhurandhar S, Díaz M, Dickson J, Dietz A, Donovan F, Dooley KL, Doomes EE, Drever RWP, Duke I, Dumas JC, Dwyer J, Echols C, Edgar M, Effler A, Ehrens P, Ely G, Espinoza E, Etzel T, Evans M, Evans T, Fairhurst S, Faltas Y, Fan Y, Fazi D, Fejer MM, Finn LS, Flasch K, Foley S, Forrest C, Fotopoulos N, Franzen A, Frei Z, Freise A, Frey R, Fricke TT, Fritschel P, Frolov VV, Fyffe M, Garofoli JA, Gholami I, Giaime JA, Giampanis S, Giardina KD, Goda K, Goetz E, Goggin LM, González G, Gossler S, Gouaty R, Grant A, Gras S, Gray C, Gray M, Greenhalgh RJS, Gretarsson AM, Grimaldi F, Grosso R, Grote H, Grunewald S, Guenther M, Gustafson EK, Gustafson R, Hage B, Hallam JM, Hanna C, Hanson J, Harms J, Harry GM, Harstad ED, Haughian E, Hayama K, Hayler T, Heefner J, Heng IS, Heptonstall A, Hewitson M, Hild S, Hirose E, Hoak D, Holt K, Hosken D, Hough J, Huttner SH, Ingram D, Ito M, Ivanov A, Johnson B, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kamat S, Kanner J, Kasprzyk D, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khan R, Khazanov E, King P, Kissel JS, Klimenko S, Kocsis B, Kokeyama K, Kondrashov V, Kopparapu R, Koranda S, Kozak D, Kozhevatov I, Krishnan B, Kwee P, Landry M, Lantz B, Lazzarini A, Lei M, Leonor I, Li C, Lin H, Lindquist PE, Littenberg TB, Lockerbie NA, Lodhia D, Lormand M, Lu P, Lubinski M, Lucianetti A, Lück H, Machenschalk B, Macinnis M, Mageswaran M, Mailand K, Mandel I, Mandic V, Márka S, Márka Z, Markosyan A, Markowitz J, Maros E, Martin IW, Martin RM, Marx JN, Mason K, Matichard F, Matone L, Matzner R, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McHugh M, McIntyre G, McKechan D, McKenzie K, Mehmet M, Melissinos A, Mendell G, Mercer RA, Meshkov S, Messenger CJ, Meyers D, Miller A, Miller J, Minelli J, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Moe B, Mohanty SD, Moreno G, Mors K, Mossavi K, Mowlowry C, Mueller G, Muhammad D, Mukherjee S, Mukhopadhyay H, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Myers E, Myers J, Nash T, Nelson J, Newton G, Nishizawa A, Numata K, Ochsner E, O'Dell J, Ogin G, O'Reilly B, O'Shaughnessy R, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Pan Y, Pankow C, Papa MA, Parameshwaraiah V, Patel P, Pedraza M, Penn S, Perraca A, Petrie T, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Postiglione F, Principe M, Prix R, Quetschke V, Raab FJ, Rabeling DS, Radkins H, Raffai P, Rainer N, Rakhmanov M, Ramsunder M, Reed T, Rehbein H, Reid S, Reitze DH, Riesen R, Riles K, Rivera B, Robertson NA, Robinson C, Robinson EL, Roddy S, Rogan AM, Rollins J, Romano JD, Romie JH, Rowan S, Rüdiger A, Ruet L, Russell P, Ryan K, Sakata S, Sancho de la Jordana L, Sandberg V, Sannibale V, Santamaria L, Saraf S, Sarin P, Sathyaprakash BS, Sato S, Saulson PR, Savage R, Savov P, Scanlan M, Schediwy SW, Schilling R, Schnabel R, Schofield R, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Sears B, Seifert F, Sellers D, Sengupta AS, Sergeev A, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Sinha S, Sintes AM, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Stein LC, Strain KA, Stuver A, Summerscales TZ, Sun KX, Sung M, Sutton PJ, Takahashi H, Tanner DB, Taylor R, Taylor R, Thacker J, Thorne KA, Thorne KS, Thüring A, Tokmakov KV, Torres C, Torrie C, Traylor G, Trias M, Ugolini D, Urbanek K, Vahlbruch H, Van Den Broeck C, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vecchio A, Veitch JD, Veitch P, Villar A, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Ward H, Ward RL, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wette K, Whelan JT, Whitcomb SE, Whiting BF, Wilkinson C, Willems PA, Williams HR, Williams L, Willke B, Wilmut I, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Wu W, Yakushin I, Yamamoto H, Yan Z, Yoshida S, Zanolin M, Zhang J, Zhang L, Zhao C, Zotov N, Zucker ME, Zur Mühlen H, Zweizig J. All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data. PHYSICAL REVIEW LETTERS 2009. [PMID: 19392186 DOI: 10.1103/physrevd.77.022001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1100 Hz and with the frequency's time derivative in the range -5 x 10{-9}-0 Hz s{-1}. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95% confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10{-24} are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10{-6}, the search is sensitive to distances as great as 500 pc.
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Lei M, Xue CH, Wang YM, Li ZJ, Xue Y, Wang JF. Effect of squid ink melanin-Fe on iron deficiency anemia remission. J Food Sci 2009; 73:H207-11. [PMID: 19019117 DOI: 10.1111/j.1750-3841.2008.00930.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The present study was designed to evaluate the effect of a new iron tonic (squid ink melanin-Fe [SM-Fe]) on remission of iron deficiency anemia (IDA) using a rat model of IDA. The rat IDA model was established with low-iron diet feeding and caudal vein blooding. Then different dosages of SM-Fe were given to the rats once a day by intragastric administration, with FeSO4 and FeCl3 as positive control. The content of Hemoglobin (Hb), red blood cell (RBC), hematocrit (HCT), and mean corpuscular volume (MCV) were analyzed in addition to the contents of serum iron (SI) and intracellular free erythrocyte protoporphyrin (FEP). The content of malondialdehyde (MDA) and the activity of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in serum was also measured. The results showed that anemia caused by iron deficiency was established as a consequence of the low-iron diets. SM-Fe showed an effective restoration action by returning Hb, RBC, HCT, MCV, SI, and FEP in IDA animals to normal values. An antioxidant effect was also observed that reduced MDA level, enhanced the activities of SOD and GSH-Px in serum, and protected erythrocytes from the injury of reactive oxygen species as a consequence of SM-Fe intake. In comparison with FeSO4 and FeCl3, higher bioavailability of iron and fewer side effects were also observed. In conclusion, SM-Fe remitted iron deficiency anemia symptoms significantly, suggesting that SM-Fe might contribute to improving hemopoietic function in IDA rats and might be exploited as a safe, efficient new iron tonic.
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Zhang Y, Wang T, Ma A, Zhou X, Gui J, Wan H, Shi R, Huang C, Grace AA, Huang CLH, Trump D, Zhang H, Zimmer T, Lei M. Correlations between clinical and physiological consequences of the novel mutation R878C in a highly conserved pore residue in the cardiac Na+ channel. Acta Physiol (Oxf) 2008; 194:311-23. [PMID: 18616619 PMCID: PMC2659387 DOI: 10.1111/j.1748-1716.2008.01883.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Aim: We compared the clinical and physiological consequences of the novel mutation R878C in a highly conserved pore residue in domain II (S5-S6) of human, hNav1.5, cardiac Na+ channels. Methods: Full clinical evaluation of pedigree members through three generations of a Chinese family combined with SCN5A sequencing from genomic DNA was compared with patch and voltage-clamp results from two independent expression systems. Results: The four mutation carriers showed bradycardia, and slowed sino-atrial, atrioventricular and intraventricular conduction. Two also showed sick sinus syndrome; two had ST elevation in leads V1 and V2. Unlike WT-hNav1.5, whole-cell patch-clamped HEK293 cells expressing R878C-hNav1.5 showed no detectable Na+ currents (iNa), even with substitution of a similarly charged lysine residue. Voltage-clamped Xenopus oocytes injected with either 0.04 or 1.5 μg μL−1 R878C-hNav1.5 cRNA similarly showed no iNa, yet WT-hNav1.5 cRNA diluted to 0.0004–0.0008 ng μL−1resulted in expression of detectable iNa. iNa was simply determined by the amount of injected WT-hNav1.5: doubling the dose of WT-hNav1.5 cRNA doubled iNa. iNa amplitudes and activation and inactivation characteristics were similar irrespective of whether WT-hNav1.5 cRNA was given alone or combined with equal doses of R878C-hNav1.5 cRNA therefore excluding dominant negative phenotypic effects. Na+ channel function in HEK293 cells transfected with R878C-hNav1.5 was not restored by exposure to mexiletine (200 μm) and lidocaine (100 μm). Fluorescence confocal microscopy using E3-Nav1.5 antibody demonstrated persistent membrane expression of both WT and R878C-hNav1.5. Modelling studies confirmed that such iNa reductions reproduced the SSS phenotype. Conclusion: Clinical consequences of the novel R878C mutation correlate with results of physiological studies.
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Abbott B, Abbott R, Adhikari R, Ajith P, Allen B, Allen G, Amin R, Anderson SB, Anderson WG, Arain MA, Araya M, Armandula H, Armor P, Aso Y, Aston S, Aufmuth P, Aulbert C, Babak S, Ballmer S, Bantilan H, Barish BC, Barker C, Barker D, Barr B, Barriga P, Barton MA, Bartos I, Bastarrika M, Bayer K, Betzwieser J, Beyersdorf PT, Bilenko IA, Billingsley G, Biswas R, Black E, Blackburn K, Blackburn L, Blair D, Bland B, Bodiya TP, Bogue L, Bork R, Boschi V, Bose S, Brady PR, Braginsky VB, Brau JE, Brinkmann M, Brooks A, Brown DA, Brunet G, Bullington A, Buonanno A, Burmeister O, Byer RL, Cadonati L, Cagnoli G, Camp JB, Cannizzo J, Cannon K, Cao J, Cardenas L, Casebolt T, Castaldi G, Cepeda C, Chalkley E, Charlton P, Chatterji S, Chelkowski S, Chen Y, Christensen N, Clark D, Clark J, Cokelaer T, Conte R, Cook D, Corbitt T, Coyne D, Creighton JDE, Cumming A, Cunningham L, Cutler RM, Dalrymple J, Danzmann K, Davies G, Debra D, Degallaix J, Degree M, Dergachev V, Desai S, Desalvo R, Dhurandhar S, Díaz M, Dickson J, Dietz A, Donovan F, Dooley KL, Doomes EE, Drever RWP, Duke I, Dumas JC, Dupuis RJ, Dwyer JG, Echols C, Effler A, Ehrens P, Espinoza E, Etzel T, Evans T, Fairhurst S, Fan Y, Fazi D, Fehrmann H, Fejer MM, Finn LS, Flasch K, Fotopoulos N, Freise A, Frey R, Fricke T, Fritschel P, Frolov VV, Fyffe M, Garofoli J, Gholami I, Giaime JA, Giampanis S, Giardina KD, Goda K, Goetz E, Goggin L, González G, Gossler S, Gouaty R, Grant A, Gras S, Gray C, Gray M, Greenhalgh RJS, Gretarsson AM, Grimaldi F, Grosso R, Grote H, Grunewald S, Guenther M, Gustafson EK, Gustafson R, Hage B, Hallam JM, Hammer D, Hanna C, Hanson J, Harms J, Harry G, Harstad E, Hayama K, Hayler T, Heefner J, Heng IS, Hennessy M, Heptonstall A, Hewitson M, Hild S, Hirose E, Hoak D, Hosken D, Hough J, Huttner SH, Ingram D, Ito M, Ivanov A, Johnson B, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kamat S, Kanner J, Kasprzyk D, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalili FY, Khan R, Khazanov E, Kim C, King P, Kissel JS, Klimenko S, Kokeyama K, Kondrashov V, Kopparapu RK, Kozak D, Kozhevatov I, Krishnan B, Kwee P, Lam PK, Landry M, Lang MM, Lantz B, Lazzarini A, Lei M, Leindecker N, Leonhardt V, Leonor I, Libbrecht K, Lin H, Lindquist P, Lockerbie NA, Lodhia D, Lormand M, Lu P, Lubinski M, Lucianetti A, Lück H, Machenschalk B, Macinnis M, Mageswaran M, Mailand K, Mandic V, Márka S, Márka Z, Markosyan A, Markowitz J, Maros E, Martin I, Martin RM, Marx JN, Mason K, Matichard F, Matone L, Matzner R, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McHugh M, McIntyre G, McIvor G, McKechan D, McKenzie K, Meier T, Melissinos A, Mendell G, Mercer RA, Meshkov S, Messenger CJ, Meyers D, Miller J, Minelli J, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Moe B, Mohanty S, Moreno G, Mossavi K, Mowlowry C, Mueller G, Mukherjee S, Mukhopadhyay H, Müller-Ebhardt H, Munch J, Murray P, Myers E, Myers J, Nash T, Nelson J, Newton G, Nishizawa A, Numata K, O'Dell J, Ogin G, O'Reilly B, O'Shaughnessy R, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Pan Y, Pankow C, Papa MA, Parameshwaraiah V, Patel P, Pedraza M, Penn S, Perreca A, Petrie T, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Postiglione F, Principe M, Prix R, Quetschke V, Raab F, Rabeling DS, Radkins H, Rainer N, Rakhmanov M, Ramsunder M, Rehbein H, Reid S, Reitze DH, Riesen R, Riles K, Rivera B, Robertson NA, Robinson C, Robinson EL, Roddy S, Rodriguez A, Rogan AM, Rollins J, Romano JD, Romie J, Route R, Rowan S, Rüdiger A, Ruet L, Russell P, Ryan K, Sakata S, Samidi M, de la Jordana LS, Sandberg V, Sannibale V, Saraf S, Sarin P, Sathyaprakash BS, Sato S, Saulson PR, Savage R, Savov P, Schediwy SW, Schilling R, Schnabel R, Schofield R, Schutz BF, Schwinberg P, Scott SM, Searle AC, Sears B, Seifert F, Sellers D, Sengupta AS, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Sinha S, Sintes AM, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Stein LC, Stochino A, Stone R, Strain KA, Strom DM, Stuver A, Summerscales TZ, Sun KX, Sung M, Sutton PJ, Takahashi H, Tanner DB, Taylor R, Taylor R, Thacker J, Thorne KA, Thorne KS, Thüring A, Tokmakov KV, Torres C, Torrie C, Traylor G, Trias M, Tyler W, Ugolini D, Ulmen J, Urbanek K, Vahlbruch H, Van Den Broeck C, van der Sluys M, Vass S, Vaulin R, Vecchio A, Veitch J, Veitch P, Villar A, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Ward H, Ward R, Weinert M, Weinstein A, Weiss R, Wen S, Wette K, Whelan JT, Whitcomb SE, Whiting BF, Wilkinson C, Willems PA, Williams HR, Williams L, Willke B, Wilmut I, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Wu W, Yakushin I, Yamamoto H, Yan Z, Yoshida S, Zanolin M, Zhang J, Zhang L, Zhao C, Zotov N, Zucker M, Zweizig J, Barthelmy S, Gehrels N, Hurley KC, Palmer D. Search for gravitational-wave bursts from soft gamma repeaters. PHYSICAL REVIEW LETTERS 2008; 101:211102. [PMID: 19113401 DOI: 10.1103/physrevlett.101.211102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2008] [Indexed: 05/11/2023]
Abstract
We present a LIGO search for short-duration gravitational waves (GWs) associated with soft gamma ray repeater (SGR) bursts. This is the first search sensitive to neutron star f modes, usually considered the most efficient GW emitting modes. We find no evidence of GWs associated with any SGR burst in a sample consisting of the 27 Dec. 2004 giant flare from SGR 1806-20 and 190 lesser events from SGR 1806-20 and SGR 1900+14. The unprecedented sensitivity of the detectors allows us to set the most stringent limits on transient GW amplitudes published to date. We find upper limit estimates on the model-dependent isotropic GW emission energies (at a nominal distance of 10 kpc) between 3x10;{45} and 9x10;{52} erg depending on waveform type, detector antenna factors and noise characteristics at the time of the burst. These upper limits are within the theoretically predicted range of some SGR models.
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Feng L, Cheng C, Lei M, Wang N, Loy MMT. Spatially resolved photoluminescence study of single ZnO tetrapods. NANOTECHNOLOGY 2008; 19:405702. [PMID: 21832631 DOI: 10.1088/0957-4484/19/40/405702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
ZnO tetrapods and nanowires were fabricated by a simple method of thermal evaporation of pure Zn powder in the air. These nanostructures, formed in different temperature regions of the same apparatus, displayed distinct photoluminescence (PL) characteristics. Spatially resolved PL measurements on legs of individual tetrapods show that the green luminescence (GL) decreases with decreasing leg diameter, and there was no detectable GL from nanowires grown simultaneously. These PL properties suggest that the green luminescence may not come from surface states, but rather from bulk defects.
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Marks L, Hubbs J, Light K, Clough R, Lei M, Jones E, Georgas D, Wright M, Yin F, Willett C. Improving Safety for Patients Receiving Radiotherapy: The Successful Application of Quality Assurance Initiatives. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhu YG, Sun GX, Lei M, Teng M, Liu YX, Chen NC, Wang LH, Carey AM, Deacon C, Raab A, Meharg AA, Williams PN. High percentage inorganic arsenic content of mining impacted and nonimpacted Chinese rice. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2008; 42:5008-13. [PMID: 18678041 DOI: 10.1021/es8001103] [Citation(s) in RCA: 279] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Two approaches were undertaken to characterize the arsenic (As) content of Chinese rice. First, a national market basket survey (n = 240) was conducted in provincial capitals, sourcing grain from China's premier rice production areas. Second, to reflect rural diets, paddy rice (n = 195) directly from farmers fields were collected from three regions in Hunan, a key rice producing province located in southern China. Two of the sites were within mining and smeltery districts, and the third was devoid of large-scale metal processing industries. Arsenic levels were determined in all the samples while a subset (n = 33) were characterized for As species, using a new simple and rapid extraction method suitable for use with Hamilton PRP-X100 anion exchange columns and HPLC-ICP-MS. The vast majority (85%) of the market rice grains possessed total As levels < 150 ng g(-1). The rice collected from mine-impacted regions, however, were found to be highly enriched in As, reaching concentrations of up to 624 ng g(-1). Inorganic As (As(i)) was the predominant species detected in all of the speciated grain, with As(i) levels in some samples exceeding 300 ng g(-1). The As(i) concentration in polished and unpolished Chinese rice was successfully predicted from total As levels. The mean baseline concentrations for As(i) in Chinese market rice based on this survey were estimated to be 96 ng g(-1) while levels in mine-impacted areas were higher with ca. 50% of the rice in one region predicted to fail the national standard.
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Lei M, Erikson RL. Plk1 depletion in nontransformed diploid cells activates the DNA-damage checkpoint. Oncogene 2008; 27:3935-43. [PMID: 18297112 DOI: 10.1038/onc.2008.36] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Revised: 01/21/2008] [Accepted: 01/22/2008] [Indexed: 12/18/2022]
Abstract
We previously reported that polo-like kinase 1 (Plk1) depletion by lentivirus-based RNA interference led to mitotic arrest and apoptosis in cancer cells, whereas normal diploid cell lines, hTERT-RPE1 and MCF10A, survived a similar level of depletion. To study homogeneous cell lines, we generated several Plk1-depleted hTERT-RPE1 and MCF10A clones that were derived from single cells depleted of Plk1. We found that in the long term, Plk1 depletion slowed proliferation of hTERT-RPE1 cells, apparently due to attenuated progression through S phase. These cells had altered morphology and were elongated compared with control. In contrast, MCF10A clones with mild levels of depletion showed no obvious phenotype. They appeared to have normal proliferation rates with no cell-cycle arrest. However, one MCF10A clone, which was severely depleted of Plk1, although viable, showed sporadic G2/M arrest and apoptosis. This MCF10A clone and all the hTERT-RPE1 clones displayed evidence of DNA-damage checkpoint activation. These data further support the interpretation that cancer cell lines have a much greater requirement for Plk1 than normal nontransformed diploid cells.
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Zhou M, Lei M, Rao Y, Nie Q, Zeng H, Xia M, Liang F, Zhang D, Zhang X. Polymorphisms of Vasoactive Intestinal Peptide Receptor-1 Gene and Their Genetic Effects on Broodiness in Chickens. Poult Sci 2008; 87:893-903. [PMID: 18420979 DOI: 10.3382/ps.2007-00495] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Wu R, Sun L, Lei M, Xie ST. [Molecular identification and expression of heat shock cognate 70 (HSC70) in the Pacific white shrimp Litopenaeus vannamei]. Mol Biol (Mosk) 2008; 42:265-274. [PMID: 18610835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Heat shock protein 70s (HSP70s) are fundamental chaperone proteins that are indispensable to most living organisms. In order to investigate the function of HSP70 and heat shock response in shrimp, a heat shock cognate (HSC70) gene of the white shrimp (Litopenaeus vannamei), containing a 1959-bp open reading frame, was cloned and characterized. The amino acid sequence, 71.5 kDa of molecular weight, shares 80-99.6% homology with 12 diverse species' HSP70s and HSC70s. In fact, some segments of the eukaryotic HSC70 sequence, such as ATP/GTP-binding site, cytoplasmic HSP70 C-terminal sequence, and GGMP/GAP repeats, are also found in the putative shrimp HSC70. Moreover, multi-tissue RT-PCR was performed to assay the basal expressions of HSC70 in the heart, gill, hepatopancreas, stomach, gut, and muscle. The results demonstrate that the basal expressions of HSC70 in theses organs are similar to that of beta-actin. Furthermore, quantitative real-time experiments showed that HSC70 was up-regulated in hepatopancreas (4.6-fold), stomach (5.9-fold), gut (2.6-fold), and muscle (3.5-fold) but not in the heart (1.7-fold) and gill (1.6-fold) after 2 h of heat shock. Nevertheless, the HSC70 was found to be highly expressed in the heart and gill following 6 h of heat shock. This suggests that HSC70 in white shrimp possess both short-term and long-term responses to heat shock stress, indicating this HSC70 may be a heat-dependent HSC70 member. Finally, we constructed an expression vector to generate HSC70 in Escherichia coli BL21, which displayed immune cross-reactivity with mouse HSP70 antibody. In conclusion, the identification and expression of white shrimp HSC70 gene present useful data for studying the molecular mechanism of heat shock response and the effect of heat shock proteins in shrimps' cytoprotection.
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Huang J, Du P, Ao C, Ho M, Lei M, Zhao D, Wang Z. Multivariate analysis for stormwater quality characteristics identification from different urban surface types in macau. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2007; 79:650-654. [PMID: 17940712 DOI: 10.1007/s00128-007-9297-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2007] [Accepted: 10/03/2007] [Indexed: 05/25/2023]
Abstract
Statistical analysis of stormwater runoff data enables general identification of runoff characteristics. Six catchments with different urban surface type including roofs, roadway, park, and residential/commercial in Macau were selected for sampling and study during the period from June 2005 to September 2006. Based on univariate statistical analysis of data sampled, major pollutants discharged from different urban surface type were identified. As for iron roof runoff, Zn is the most significant pollutant. The major pollutants from urban roadway runoff are TSS and COD. Stormwater runoff from commercial/residential and Park catchments show high level of COD, TN, and TP concentration. Principal component analysis was further done for identification of linkages between stormwater quality and urban surface types. Two potential pollution sources were identified for study catchments with different urban surface types. The first one is referred as nutrients losses, soil losses and organic pollutants discharges, the second is related to heavy metals losses. PCA was proved to be a viable tool to explain the type of pollution sources and its mechanism for different urban surface type catchments.
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Howarth FC, Nowotny N, Zilahi E, El Haj MA, Lei M. Altered expression of gap junction connexin proteins may partly underlie heart rhythm disturbances in the streptozotocin-induced diabetic rat heart. Mol Cell Biochem 2007; 305:145-51. [PMID: 17632690 DOI: 10.1007/s11010-007-9537-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Accepted: 06/21/2007] [Indexed: 02/07/2023]
Abstract
Previous studies in isolated perfused heart and in atrial preparations have demonstrated significant reductions in beating rate in STZ-induced diabetic rats, which suggests that sinus arrhythmias in diabetes mellitus may be partly caused by intrinsic alteration of sino-atrial node (SAN) function. The effects of diabetes on electrical activity and expression levels of mRNA for gap junction proteins in the SAN have been investigated. Diabetes was induced by a single intraperitoneal injection of STZ (60 mg/kg) administered to young male Wistar rats (200-250 g). Experiments were performed 8-10 weeks after treatment. Conduction time and pacemaker cycle length were measured in sino-atrial node preparations with extracellular electrodes. Expression levels of mRNA for Gja5 (Cx40), Gja1 (Cx43) and Gja7 (Cx45) were measured in SAN and compared with right atrium and right ventricle with real-time quantitative reverse transcription-polymerase chain reaction. Diabetes was confirmed by a significant elevation of blood glucose (356+/-21 mg/dl) compared to age-matched controls (66+/-2 mg/dl). Pacemaker cycle length was significantly prolonged in diabetic heart (415+/-43 ms, n=6) compared to controls (255+/-7 ms, n=6). Sino-atrial conduction time was also significantly prolonged in diabetic hearts (12+/-2 ms) compared to controls (7+/-1 ms). Expression levels of mRNA for Gja5 (Cx40) and Gja1 (Cx43) were moderately increased and for Gja7 (Cx45) was significantly increased in SAN from diabetic heart compared to controls. Expression levels for gap junction connexin proteins were not significantly altered in right atrium or right ventricle from diabetic heart compared to controls. Structural remodelling of gap junction connexin proteins may partly underlie electrophysiological defects in STZ-induced diabetic rat SAN.
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Sha G, Wu D, Zhang L, Chen X, Lei M, Sun H, Lin S, Lang J. Differentially expressed genes in human endometrial endothelial cells derived from eutopic endometrium of patients with endometriosis compared with those from patients without endometriosis. Hum Reprod 2007; 22:3159-69. [DOI: 10.1093/humrep/dem266] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zuo B, Yang H, Wang J, Lei M, Xiong Y. Molecular characterization, sequence variation and
association with fat deposition traits of ACOX1
gene in pigs. JOURNAL OF ANIMAL AND FEED SCIENCES 2007. [DOI: 10.22358/jafs/66799/2007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lei M, Luo C, Peng X, Fang M, Nie Q, Zhang D, Yang G, Zhang X. Polymorphism of Growth-Correlated Genes Associated with Fatness and Muscle Fiber Traits in Chickens. Poult Sci 2007; 86:835-42. [PMID: 17435016 DOI: 10.1093/ps/86.5.835] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Thirty single nucleotide polymorphisms (SNP) and one 6-bp insertion-deletion (indel) from 8 genes of somatotropic axis were used to study the association with chicken fatness and muscle fibers. The allele frequency difference between Xinghua and White Plymouth Rock chickens was observed, and their effects on fatness and muscle fiber traits were also evaluated by linkage analyses. The G143831A (G+1705A) SNP of the growth hormone (GH) gene was related to fat width, and the G144762A (G+119A) SNP of the GH gene was significantly associated with abdominal fat pad weight, abdominal fat pad ratio, and crude fatty content of the breast muscle. The 6-bp indel of the growth hormone secretagogue receptor (GHSR) gene was significantly linked with the fat traits. The C51978309T SNP of the insulin-like factor-I (IGF-I) gene was significantly linked with the transversal area of the leg muscle fiber and transversal area of the breast muscle fiber. There was significant linkage between the insulin (INS) gene and 2 traits of the transversal area of transversal area of the leg muscle fiber and transversal area of the breast muscle fiber. Association of 30 SNP and one 6-bp indel from 8 genes of somatotropic axis with chicken fatness and muscle fiber traits was analyzed in the present study. The GH, GHSR, and leptin receptor genes were significantly related to chicken fatness. The INS and IGF-I genes were linked with muscle fiber density. Therefore, the genes of somatotropic axis not only affected chicken growth and body composition but also were associated with fatness and muscle fiber traits.
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Zhang H, Zhao Y, Lei M, Dobrzynski H, Liu JH, Holden AV, Boyett MR. Computational evaluation of the roles of Na+ current, iNa, and cell death in cardiac pacemaking and driving. Am J Physiol Heart Circ Physiol 2007; 292:H165-74. [PMID: 16877551 DOI: 10.1152/ajpheart.01101.2005] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Voltage-dependent sodium (Na+) channels are heterogeneously distributed through the pacemaker of the heart, the sinoatrial node (SA node). The measured sodium channel current ( iNa) density is higher in the periphery but low or zero in the center of the SA node. The functional roles of iNa in initiation and conduction of cardiac pacemaker activity remain uncertain. We evaluated the functional roles of iNa by computer modeling. A gradient model of the intact SA node and atrium of the rabbit heart was developed that incorporates both heterogeneities of the SA node electrophysiology and histological structure. Our computations show that a large iNa in the periphery helps the SA node to drive the atrial muscle. Removal iNa from the SA node slows down the pacemaking rate and increases the sinoatrial node-atrium conduction time. In some cases, reduction of the SA node iNa results in impairment of impulse initiation and conduction that leads to the SA node-atrium conduction exit block. Decrease in active SA node cell population has similar effects. Combined actions of reduced cell population and removal of iNa from the SA node have greater impacts on weakening the ability of the SA node to pace and drive the atrium.
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Lei M, Dai W, Tan C, Wang J. Association Of The Genetic Polymorphism Of The Surfactant Protein (SP)-D With Mite-sensitization In Childhood Asthma. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Boyett MR, Inada S, Yoo S, Li J, Liu J, Tellez J, Greener ID, Honjo H, Billeter R, Lei M, Zhang H, Efimov IR, Dobrzynski H. Connexins in the sinoatrial and atrioventricular nodes. Adv Cardiol 2006; 42:175-197. [PMID: 16646591 DOI: 10.1159/000092569] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The sinoatrial node (SAN) and the atrioventricular node (AVN) are specialized tissues in the heart: the SAN is specialized for pacemaking (it is the pacemaker of the heart), whereas the AVN is specialized for slow conduction of the action potential (to introduce a delay between atrial and ventricular activation during the cardiac cycle). These functions have special requirements regarding electrical coupling and, therefore, expression of connexin isoforms. Electrical coupling in the center of the SAN should be weak to protect it from the inhibitory electrotonic influence of the more hyperpolarized non-pacemaking atrial muscle surrounding the SAN. However, for the SAN to be able to drive the atrial muscle, electrical coupling should be strong in the periphery of the SAN. Consistent with this, in the center of the SAN there is no expression of Cx43 (the principal connexin of the working myocardium) and little expression of Cx40, but there is expression of Cx45 and Cx30.2, whereas in the periphery of the SAN Cx43 as well Cx45 is expressed. In the AVN, there is a similar pattern of expression of connexins as in the center of the SAN and this is likely to be in large part responsible for the slow conduction of the action potential.
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Abbott B, Abbott R, Adhikari R, Agresti J, Ajith P, Allen B, Allen J, Amin R, Anderson SB, Anderson WG, Araya M, Armandula H, Ashley M, Aulbert C, Babak S, Balasubramanian R, Ballmer S, Barish BC, Barker C, Barker D, Barton MA, Bayer K, Belczynski K, Betzwieser J, Bhawal B, Bilenko IA, Billingsley G, Black E, Blackburn K, Blackburn L, Bland B, Bogue L, Bork R, Bose S, Brady PR, Braginsky VB, Brau JE, Brown DA, Buonanno A, Busby D, Butler WE, Cadonati L, Cagnoli G, Camp JB, Cannizzo J, Cannon K, Cardenas L, Carter K, Casey MM, Charlton P, Chatterji S, Chen Y, Chin D, Christensen N, Cokelaer T, Colacino CN, Coldwell R, Cook D, Corbitt T, Coyne D, Creighton JDE, Creighton TD, Dalrymple J, D'Ambrosio E, Danzmann K, Davies G, DeBra D, Dergachev V, Desai S, DeSalvo R, Dhurandar S, Díaz M, Di Credico A, Drever RWP, Dupuis RJ, Ehrens P, Etzel T, Evans M, Evans T, Fairhurst S, Finn LS, Franzen KY, Frey RE, Fritschel P, Frolov VV, Fyffe M, Ganezer KS, Garofoli J, Gholami I, Giaime JA, Goda K, Goggin L, González G, Gray C, Gretarsson AM, Grimmett D, Grote H, Grunewald S, Guenther M, Gustafson R, Hamilton WO, Hanna C, Hanson J, Hardham C, Harry G, Heefner J, Heng IS, Hewitson M, Hindman N, Hoang P, Hough J, Hua W, Ito M, Itoh Y, Ivanov A, Johnson B, Johnson WW, Jones DI, Jones G, Jones L, Kalogera V, Katsavounidis E, Kawabe K, Kawamura S, Kells W, Khan A, Kim C, King P, Klimenko S, Koranda S, Kozak D, Krishnan B, Landry M, Lantz B, Lazzarini A, Lei M, Leonor I, Libbrecht K, Lindquist P, Liu S, Lormand M, Lubinski M, Lück H, Luna M, Machenschalk B, MacInnis M, Mageswaran M, Mailand K, Malec M, Mandic V, Marka S, Maros E, Mason K, Matone L, Mavalvala N, McCarthy R, McClelland DE, McHugh M, McNabb JWC, Melissinos A, Mendell G, Mercer RA, Meshkov S, Messaritaki E, Messenger C, Mikhailov E, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Mohanty S, Moreno G, Mossavi K, Mueller G, Mukherjee S, Myers E, Myers J, Nash T, Nocera F, Noel JS, O'Reilly B, O'Shaughnessy R, Ottaway DJ, Overmier H, Owen BJ, Pan Y, Papa MA, Parameshwaraiah V, Parameswariah C, Pedraza M, Penn S, Pitkin M, Prix R, Quetschke V, Raab F, Radkins H, Rahkola R, Rakhmanov M, Rawlins K, Ray-Majumder S, Re V, Regimbau T, Reitze DH, Riesen R, Riles K, Rivera B, Robertson DI, Robertson NA, Robinson C, Roddy S, Rodriguez A, Rollins J, Romano JD, Romie J, Rowan S, Rüdiger A, Ruet L, Russell P, Ryan K, Sandberg V, Sanders GH, Sannibale V, Sarin P, Sathyaprakash BS, Saulson PR, Savage R, Sazonov A, Schilling R, Schofield R, Schutz BF, Schwinberg P, Scott SM, Seader SE, Searle AC, Sears B, Sellers D, Sengupta AS, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Sintes AM, Smith J, Smith MR, Spjeld O, Strain KA, Strom DM, Stuver A, Summerscales T, Sung M, Sutton PJ, Tanner DB, Taylor R, Thorne KA, Thorne KS, Tokmakov KV, Torres C, Torrie C, Traylor G, Tyler W, Ugolini D, Ungarelli C, Vallisneri M, van Putten M, Vass S, Vecchio A, Veitch J, Vorvick C, Vyachanin SP, Wallace L, Ward H, Ward R, Watts K, Webber D, Weiland U, Weinstein A, Weiss R, Wen S, Wette K, Whelan JT, Whitcomb SE, Whiting BF, Wiley S, Wilkinson C, Willems PA, Willke B, Wilson A, Winkler W, Wise S, Wiseman AG, Woan G, Woods D, Wooley R, Worden J, Yakushin I, Yamamoto H, Yoshida S, Zanolin M, Zhang L, Zotov N, Zucker M, Zweizig J. Upper limits on a stochastic background of gravitational waves. PHYSICAL REVIEW LETTERS 2005; 95:221101. [PMID: 16384203 DOI: 10.1103/physrevlett.95.221101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2005] [Indexed: 05/05/2023]
Abstract
The Laser Interferometer Gravitational-Wave Observatory has performed a third science run with much improved sensitivities of all three interferometers. We present an analysis of approximately 200 hours of data acquired during this run, used to search for a stochastic background of gravitational radiation. We place upper bounds on the energy density stored as gravitational radiation for three different spectral power laws. For the flat spectrum, our limit of omega0 < 8.4 x 10(-4) in the 69-156 Hz band is approximately 10(5) times lower than the previous result in this frequency range.
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Nie Q, Sun B, Zhang D, Luo C, Ishag NA, Lei M, Yang G, Zhang X. High Diversity of the Chicken Growth Hormone Gene and Effects on Growth and Carcass Traits. J Hered 2005; 96:698-703. [PMID: 16267170 DOI: 10.1093/jhered/esi114] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The chicken growth hormone (cGH) gene plays a crucial role in controlling growth and metabolism, leading to potential correlations between cGH polymorphisms and economic traits. In this study, DNA from four divergent chicken breeds were screened for single nucleotide polymorphisms (SNPs) in the cGH gene using denaturing high-performance liquid chromatography and sequencing. A total of 46 SNPs were identified, of which 4 were in the 5' untranslated region, 1 in the 3' untranslated region, 5 in exons (two of which are nonsynonymous), with the remaining 36 in introns. The nucleotide diversity in the cGH gene ( theta = 2.7 x 10(-3)) was higher than that reported for other chicken genes, even within the same breeds. The associations of five of these SNPs and their haplotypes with chicken growth and carcass traits were determined using polymerase chain reaction-restriction fragment length polymorphism analysis in a F2 resource population cross of two of the four chicken breeds (White Recessive Rock and Xinghua). This analysis shows that, among other correlations, G+1705A was significantly associated with body weight at all ages measured, shank length at three of four ages measured, and average daily gain within weeks 0 to 4. Thus, this cGH polymorphism, or another polymorphism that is in linkage disequilibrium with G+1705A, appears to correspond to a significant growth-related quantitative trait locus difference between the two breeds used to construct the resource population.
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Descamps M, Lei M, Brearley S. Mycotic Aneurysm of the Abdominal Aorta Due to Streptococcus bovis Infection. Eur J Vasc Endovasc Surg 2005. [DOI: 10.1016/j.ejvs.2005.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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136
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Abbott B, Abbott R, Adhikari R, Ageev A, Allen B, Amin R, Anderson SB, Anderson WG, Araya M, Armandula H, Ashley M, Asiri F, Aufmuth P, Aulbert C, Babak S, Balasubramanian R, Ballmer S, Barish BC, Barker C, Barker D, Barnes M, Barr B, Barton MA, Bayer K, Beausoleil R, Belczynski K, Bennett R, Berukoff SJ, Betzwieser J, Bhawal B, Bilenko IA, Billingsley G, Black E, Blackburn K, Blackburn L, Bland B, Bochner B, Bogue L, Bork R, Bose S, Brady PR, Braginsky VB, Brau JE, Brown DA, Bullington A, Bunkowski A, Buonanno A, Burgess R, Busby D, Butler WE, Byer RL, Cadonati L, Cagnoli G, Camp JB, Cantley CA, Cardenas L, Carter K, Casey MM, Castiglione J, Chandler A, Chapsky J, Charlton P, Chatterji S, Chelkowski S, Chen Y, Chickarmane V, Chin D, Christensen N, Churches D, Cokelaer T, Colacino C, Coldwell R, Coles M, Cook D, Corbitt T, Coyne D, Creighton JDE, Creighton TD, Crooks DRM, Csatorday P, Cusack BJ, Cutler C, D'Ambrosio E, Danzmann K, Daw E, DeBra D, Delker T, Dergachev V, DeSalvo R, Dhurandhar S, Di Credico A, Díaz M, Ding H, Drever RWP, Dupuis RJ, Edlund JA, Ehrens P, Elliffe EJ, Etzel T, Evans M, Evans T, Fairhurst S, Fallnich C, Farnham D, Fejer MM, Findley T, Fine M, Finn LS, Franzen KY, Freise A, Frey R, Fritschel P, Frolov VV, Fyffe M, Ganezer KS, Garofoli J, Giaime JA, Gillespie A, Goda K, González G, Gossler S, Grandclément P, Grant A, Gray C, Gretarsson AM, Grimmett D, Grote H, Grunewald S, Guenther M, Gustafson E, Gustafson R, Hamilton WO, Hammond M, Hanson J, Hardham C, Harms J, Harry G, Hartunian A, Heefner J, Hefetz Y, Heinzel G, Heng IS, Hennessy M, Hepler N, Heptonstall A, Heurs M, Hewitson M, Hild S, Hindman N, Hoang P, Hough J, Hrynevych M, Hua W, Ito M, Itoh Y, Ivanov A, Jennrich O, Johnson B, Johnson WW, Johnston WR, Jones DI, Jones L, Jungwirth D, Kalogera V, Katsavounidis E, Kawabe K, Kawamura S, Kells W, Kern J, Khan A, Killbourn S, Killow CJ, Kim C, King C, King P, Klimenko S, Koranda S, Kötter K, Kovalik J, Kozak D, Krishnan B, Landry M, Langdale J, Lantz B, Lawrence R, Lazzarini A, Lei M, Leonor I, Libbrecht K, Libson A, Lindquist P, Liu S, Logan J, Lormand M, Lubinski M, Lück H, Lyons TT, Machenschalk B, MacInnis M, Mageswaran M, Mailand K, Majid W, Malec M, Mann F, Marin A, Márka S, Maros E, Mason J, Mason K, Matherny O, Matone L, Mavalvala N, McCarthy R, McClelland DE, McHugh M, McNabb JWC, Mendell G, Mercer RA, Meshkov S, Messaritaki E, Messenger C, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Miyoki S, Mohanty S, Moreno G, Mossavi K, Mueller G, Mukherjee S, Murray P, Myers J, Nagano S, Nash T, Nayak R, Newton G, Nocera F, Noel JS, Nutzman P, Olson T, O'Reilly B, Ottaway DJ, Ottewill A, Ouimette D, Overmier H, Owen BJ, Pan Y, Papa MA, Parameshwaraiah V, Parameswariah C, Pedraza M, Penn S, Pitkin M, Plissi M, Prix R, Quetschke V, Raab F, Radkins H, Rahkola R, Rakhmanov M, Rao SR, Rawlins K, Ray-Majumder S, Re V, Redding D, Regehr MW, Regimbau T, Reid S, Reilly KT, Reithmaier K, Reitze DH, Richman S, Riesen R, Riles K, Rivera B, Rizzi A, Robertson DI, Robertson NA, Robison L, Roddy S, Rollins J, Romano JD, Romie J, Rong H, Rose D, Rotthoff E, Rowan S, Rüdiger A, Russell P, Ryan K, Salzman I, Sandberg V, Sanders GH, Sannibale V, Sathyaprakash B, Saulson PR, Savage R, Sazonov A, Schilling R, Schlaufman K, Schmidt V, Schnabel R, Schofield R, Schutz BF, Schwinberg P, Scott SM, Seader SE, Searle AC, Sears B, Seel S, Seifert F, Sengupta AS, Shapiro CA, Shawhan P, Shoemaker DH, Shu QZ, Sibley A, Siemens X, Sievers L, Sigg D, Sintes AM, Smith JR, Smith M, Smith MR, Sneddon PH, Spero R, Stapfer G, Steussy D, Strain KA, Strom D, Stuver A, Summerscales T, Sumner MC, Sutton PJ, Sylvestre J, Takamori A, Tanner DB, Tariq H, Taylor I, Taylor R, Taylor R, Thorne KA, Thorne KS, Tibbits M, Tilav S, Tinto M, Tokmakov KV, Torres C, Torrie C, Traylor G, Tyler W, Ugolini D, Ungarelli C, Vallisneri M, van Putten M, Vass S, Vecchio A, Veitch J, Vorvick C, Vyachanin SP, Wallace L, Walther H, Ward H, Ware B, Watts K, Webber D, Weidner A, Weiland U, Weinstein A, Weiss R, Welling H, Wen L, Wen S, Whelan JT, Whitcomb SE, Whiting BF, Wiley S, Wilkinson C, Willems PA, Williams PR, Williams R, Willke B, Wilson A, Winjum BJ, Winkler W, Wise S, Wiseman AG, Woan G, Wooley R, Worden J, Wu W, Yakushin I, Yamamoto H, Yoshida S, Zaleski KD, Zanolin M, Zawischa I, Zhang L, Zhu R, Zotov N, Zucker M, Zweizig J, Kramer M, Lyne AG. Limits on gravitational-wave emission from selected pulsars using LIGO data. PHYSICAL REVIEW LETTERS 2005; 94:181103. [PMID: 15904354 DOI: 10.1103/physrevlett.94.181103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2004] [Indexed: 05/02/2023]
Abstract
We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multidetector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build radio-guided phase templates for the expected gravitational-wave signals. The unprecedented sensitivity of the detectors allows us to set strain upper limits as low as a few times 10(-24). These strain limits translate into limits on the equatorial ellipticities of the pulsars, which are smaller than 10(-5) for the four closest pulsars.
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Nie Q, Zeng H, Lei M, Ishag NA, Fang M, Sun B, Yang G, Zhang X. Genomic organisation of the chicken ghrelin gene and its single nucleotide polymorphisms detected by denaturing high-performance liquid chromatography. Br Poult Sci 2005; 45:611-8. [PMID: 15623213 DOI: 10.1080/00071660400006263] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
(1) Ghrelin is a novel endogenous ligand for the growth hormone secretagogue receptor (GHS-R) and is expressed primarily in the stomach and hypothalamus with the probable function of stimulating GH secretion and food intake both in mammals and poultry. The complete sequences of ghrelin gene have been reported in humans and mice; however, that of chickens remains unclear. (2) Here, we report the complete sequence of chicken ghrelin gene (submitted to Genbank; accession number AY303688), which consists of 5 exons and 4 introns. As in mice, the first exon of chicken ghrelin gene does not encode any amino acid. (3) Scanning point mutations with denaturing high-performance liquid chromatography (DHPLC) using WAVE DNA Fragment Analysis Systems and confirmed with direct sequencing for polymerase chain reaction (PCR) products, we analysed the single nucleotide polymorphisms (SNPs) in the entire gene of chicken ghrelin. (4) Results showed that there were 19 SNPs in chicken ghrelin gene, and most of these SNPs were scattered in the 4 introns. In these SNPs, one mutation in exon 5 (A2355G) led to the change of amino acid from glutamine to arginine (Gln 113 Arg): as a result a different ghrelin precursor instead of a mature peptide was produced. In addition, one SNP in 5'UTR (C223G) determined the presence or absence of a potential binding site of transcription factor serum response factor (SRF), which might affect the expression of chicken ghrelin gene. Some of the SNPs detected in the present study could be used in quantitative trait loci (QTL) mapping for growth characters in chickens. (5) Because one SNP is located in a polymorphic site of restriction enzyme PagI of intron 4, it was possible to design a PCR-RFLP procedure and analyse the diversity of 10 chicken populations. Results showed the allelic frequencies of C2100T differ among these breeds, however, no significant difference was observed between imported breeds and Chinese native ones, nor between egg layers and meat type chickens. A chi-square test showed that 4 chicken populations of Beijing Fat, Xinghua, Recessive White and Silky followed the Hardy-Weinberg equilibrium.
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Pato CN, Pato MT, Kirby A, Petryshen TL, Medeiros H, Carvalho C, Macedo A, Dourado A, Coelho I, Valente J, Soares MJ, Ferreira CP, Lei M, Verner A, Hudson TJ, Morley CP, Kennedy JL, Azevedo MH, Daly MJ, Sklar P. Genome-wide scan in Portuguese Island families implicates multiple loci in bipolar disorder: fine mapping adds support on chromosomes 6 and 11. Am J Med Genet B Neuropsychiatr Genet 2004; 127B:30-4. [PMID: 15108176 DOI: 10.1002/ajmg.b.30001] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
As part of an extensive study in the Portuguese Island population of families with multiple patients suffering from bipolar disorder and schizophrenia, we performed an initial genome-wide scan of 16 extended families with bipolar disorder that identified three regions on chromosomes 2, 11, and 19 with genome-wide suggestive linkage and several other regions, including chromosome 6q, also approached suggestive levels of significance. Dick et al. [2003: Am J Hum Genet 73:107-114] recently reported in a study of 250 families with bipolar disorder a maxLOD score of 3.61 near marker D6S1021 on chromosome 6q. This study replicates this finding having detected a peak NPL = 2.02 (P = 0.025) with the same marker D6S1021(104.7 Mb). Higher-density mapping provided additional support for loci on chromosome 6 including marker D6S1021 with an NPL = 2.59 (P = 0.0068) and peaking at marker D6S1639 (125 Mb) with an NPL = 3.06 (P = 0.0019). A similar pattern was detected with higher-density mapping of chromosome 11 with an NPL = 3.15 (P = 0.0014) at marker D11S1883 (63.1 Mb). Simulations at the density of our fine mapping data indicate that less than 1 scan out of 10 would find two such scores genome-wide in the same scan by chance. Our findings provide additional support for a susceptibility locus for bipolar disorder on 6q, as well as, suggesting the importance of denser scans. Published 2004 Wiley-Liss, Inc.
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Middleton FA, Pato MT, Gentile KL, Morley CP, Zhao X, Eisener AF, Brown A, Petryshen TL, Kirby AN, Medeiros H, Carvalho C, Macedo A, Dourado A, Coelho I, Valente J, Soares MJ, Ferreira CP, Lei M, Azevedo MH, Kennedy JL, Daly MJ, Sklar P, Pato CN. Genomewide linkage analysis of bipolar disorder by use of a high-density single-nucleotide-polymorphism (SNP) genotyping assay: a comparison with microsatellite marker assays and finding of significant linkage to chromosome 6q22. Am J Hum Genet 2004; 74:886-97. [PMID: 15060841 PMCID: PMC1181983 DOI: 10.1086/420775] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2004] [Accepted: 02/20/2004] [Indexed: 02/04/2023] Open
Abstract
We performed a linkage analysis on 25 extended multiplex Portuguese families segregating for bipolar disorder, by use of a high-density single-nucleotide-polymorphism (SNP) genotyping assay, the GeneChip Human Mapping 10K Array (HMA10K). Of these families, 12 were used for a direct comparison of the HMA10K with the traditional 10-cM microsatellite marker set and the more dense 4-cM marker set. This comparative analysis indicated the presence of significant linkage peaks in the SNP assay in chromosomal regions characterized by poor coverage and low information content on the microsatellite assays. The HMA10K provided consistently high information and enhanced coverage throughout these regions. Across the entire genome, the HMA10K had an average information content of 0.842 with 0.21-Mb intermarker spacing. In the 12-family set, the HMA10K-based analysis detected two chromosomal regions with genomewide significant linkage on chromosomes 6q22 and 11p11; both regions had failed to meet this strict threshold with the microsatellite assays. The full 25-family collection further strengthened the findings on chromosome 6q22, achieving genomewide significance with a maximum nonparametric linkage (NPL) score of 4.20 and a maximum LOD score of 3.56 at position 125.8 Mb. In addition to this highly significant finding, several other regions of suggestive linkage have also been identified in the 25-family data set, including two regions on chromosome 2 (57 Mb, NPL = 2.98; 145 Mb, NPL = 3.09), as well as regions on chromosomes 4 (91 Mb, NPL = 2.97), 16 (20 Mb, NPL = 2.89), and 20 (60 Mb, NPL = 2.99). We conclude that at least some of the linkage peaks we have identified may have been largely undetected in previous whole-genome scans for bipolar disorder because of insufficient coverage or information content, particularly on chromosomes 6q22 and 11p11.
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Sklar P, Pato MT, Kirby A, Petryshen TL, Medeiros H, Carvalho C, Macedo A, Dourado A, Coelho I, Valente J, Soares MJ, Ferreira CP, Lei M, Verner A, Hudson TJ, Morley CP, Kennedy JL, Azevedo MH, Lander E, Daly MJ, Pato CN. Genome-wide scan in Portuguese Island families identifies 5q31-5q35 as a susceptibility locus for schizophrenia and psychosis. Mol Psychiatry 2004; 9:213-8. [PMID: 14699422 DOI: 10.1038/sj.mp.4001418] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Schizophrenia is a common psychiatric disorder with a complex genetic etiology. To understand the genetic basis of this syndrome in Portuguese Island populations, we performed a genome-wide scan of 29 families with schizophrenia, which identified a single region on 5q31-5q35 with strong linkage (NPL=3.09, P=0.0012 at D5S820). Empirical simulations set a genome-wide threshold of NPL=3.10 for significant linkage. Additional support for this locus in schizophrenia comes from higher-density mapping and mapping of 11 additional families. The combined set of 40 families had a peak NPL=3.28 (P=0.00066) at markers D5S2112-D5S820. These data and previous linkage findings from other investigators provide strong and consistent evidence for this genomic region as a susceptibility locus for schizophrenia. Exploratory analyses of a novel phenotype, psychosis, in families with schizophrenia and bipolar disorder detected evidence for linkage to the same markers as found in schizophrenia (peak NPL=3.03, P=0.0012 at D5S820), suggesting that this locus may be responsible for the psychotic symptoms observed in both diseases. Molecular Psychiatry (2004) 9, 213-218. doi:10.1038/sj.mp.4001418 Published online 30 December 2003
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Zhang F, Oswald T, Lin S, Cai Z, Lei M, Jones M, Angel MF, Lineaweaver WC. Vascular endothelial growth factor (VEGF) expression and the effect of exogenous VEGF on survival of a random flap in the rat. BRITISH JOURNAL OF PLASTIC SURGERY 2003; 56:653-9. [PMID: 12969663 DOI: 10.1016/s0007-1226(03)00214-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The induction of endogenous vascular endothelial growth factor (VEGF) production in the skin flap with ischemic injury and the effect of exogenous VEGF on survival of the ischemic skin flap were studied in rats. A dorsal flap model (3x10 cm(2)) was used in this study. In Part I, biopsies were taken from the flap at 2.5, 5.5, and 8.5 cm distances from the distal edge at 0, 6, 12, and 24 h after the flaps were sutured. Malonyldialdehyde (MDA) and VEGF(165) protein level were measured. In Part II, exogenous VEGF (1 microg/ml) was injected subdermally into the flaps in 14 rats before the flaps were replaced. Flaps that received a saline injection were used as the controls. The skin paddle survival was measured on postoperative day five. The results showed that the MDA level in the distal part of the flap significantly increased at 24 h postoperatively when compared to MDA in other parts of the flap. However, VEGF levels in the distal part of the flap significantly decreased when compared to the middle part of the flap. Subdermal injection of exogenous VEGF to the distal area of the flap could significantly improve survival of the distal flap (89% of total skin paddle) when compared to the control, which had a 64% mean percent survival. We conclude that production of endogenous VEGF protein is significantly increased in the skin flap with mild ischemia, but decreased in the flap with severe ischemia. Administration of exogenous VEGF could significantly enhance survival of ischemic flaps.
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Liao L, Lei M, Chen H, Han X, Fan C. [Studies on ACE gene insertion/deletion polymorphism, serum ACE activity, and diabetic retinopathy in type II diabetic patients]. HUNAN YI KE DA XUE XUE BAO = HUNAN YIKE DAXUE XUEBAO = BULLETIN OF HUNAN MEDICAL UNIVERSITY 2002; 24:33-6. [PMID: 11938734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
To clarify the relationship among angiotensin 1-converting enzyme(ACE) gene insertion/deletion(I/D) polymorphism, serum ACE activity, and diabetic retinopathy in Type II diabetic patients, we examined 36 healthy controls, 40 Type II diabetic patients without diabetic retinopathy, and 68 Type II diabetic patients with diabetic retinopathy. All of patients suffered from Type II diabetes beyond 5 years and matched in age and body mass index. An insertion/deletion polymorphism of ACE gene was identified by polymerase chain reaction(PCR). Serum ACE activity was determined using spectrophotometry. The distribution of DD, ID, and II genotypes of the ACE gene did not differ among the three groups (16.7%, 33.3%, and 50.0% in the healthy controls; 22.5%, 35.0%, and 42.5% in Type II diabetic patients patients without diabetic retinopathy; and 20.6%, 30.9%, and 48.5% in Type II diabetic patients with diabetic retinopathy; respectively). The frequency of ACE I/D genotypes was not significantly different between non-proliferative retinopathy and proliferative retinopathy of Type II diabetic patients with diabetic retinopathy (P > 0.05). Serum ACE activity of three groups was similar (P > 0.05). These results do not support the hypothesis that the DD genotype of the ACE gene would be a clinically useful genetic marker for predicting the development of diabetic retinopathy in Type II diabetic patients. There is no association between ACE gene I/D polymorphism and the prognosis of diabetic retinopathy in Type II diabetic patients. ACE may not involve in forming diabetic retinopathy in Type II diabetic patients.
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Liao L, Lei M, Han X, Chen H, Fan C. [Relationship between serum angiotensin I-converting enzyme activity and diabetic nephropathy in patients with type II diabetes]. HUNAN YI KE DA XUE XUE BAO = HUNAN YIKE DAXUE XUEBAO = BULLETIN OF HUNAN MEDICAL UNIVERSITY 2002; 24:263-6. [PMID: 12016801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
To clarify the relationship between serum angiotensin I-converting enzyme (ACE) activity and Type II diabetic patients with or without diabetic nephropathy. We examined 36 healthy controls, 58 Type II diabetic patients without diabetic nephropathy, and 50 Type II diabetic with diabetic nephropathy. The diabetic duration of all of Type II diabetic patients was more than 5 years. All patients matched well in age and BMI. An insertion/deletion polymorphism of ACE gene was identified by polymerase chain reaction(PCR). Serum ACE activity was determined using spectrophotometry. Although the distribution of DD, ID, and II genotypes of the ACE gene did not differ among the three groups, serum ACE activity was significantly higher in Type II diabetic patients with diabetic nephropathy than in that without diabetic nephropathy(P < 0.05), especially in the groups with D allele of ACE gene. Serum ACE activity had no difference between healthy controls and Type II diabetic patients without diabetic nephropathy. There is no association between serum ACE activity and Type II diabetic patients without diabetic nephropathy in any genotype of ACE gene. The increasing serum ACE activity plays a role in the initiation of diabetic nephropathy or may serve as a risk marker for later development of overt diabetic nephropathy in Type II diabetic patients.
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Thorpe MF, Lei M, Rader AJ, Jacobs DJ, Kuhn LA. Protein flexibility and dynamics using constraint theory. J Mol Graph Model 2002; 19:60-9. [PMID: 11381531 DOI: 10.1016/s1093-3263(00)00122-4] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A new approach is presented for determining the rigid regions in proteins and the flexible joints between them. The short-range forces in proteins are modeled as constraints and we use a recently developed formalism from graph theory to analyze flexibility in the bond network. Forces included in the analysis are the covalent bond-stretching and bond-bending forces, salt bridges, and hydrogen bonds. We use a local function to associate an energy with individual hydrogen bonds, which then can be included or excluded depending on the bond strength. Colored maps of the rigid and flexible regions provide a direct visualization of where the motion of the protein can take place, consistent with these distance constraints. We also define a flexibility index that quantifies the local density of flexible or floppy modes, in terms of the dihedral angles that remain free to rotate in each flexible region. A negative flexibility index provides a measure of the density of redundant bonds in rigid regions. A new application of this approach is to simulate the maximal range of possible motions of the flexible regions by introducing Monte Carlo changes in the free dihedral angles, subject to the distance constraints. This is done using a method that maintains closure of the rings formed by covalent and hydrogen bonds in the flexible parts of the protein, and van der Waals overlaps between atoms are avoided. We use the locus of the possible motions of HIV protease as an example: movies of its motion can be seen at http://www.pa.msu.edu/~lei.
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Yan H, Joy D, Lei M. Convolution and correlation: a case study of scanning imaging and analysis systems. SCANNING 2002; 24:6-17. [PMID: 11866346 DOI: 10.1002/sca.4950240102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The relationship between convolution/correlation operation and the data acquisition process of the scanning microscope and spectrometer families is analyzed. It is shown that a coordinate or event sensitive detector, and the intrinsic or extrinsic property of the specimen response, are two important factors in distinguishing the data acquisition mode of such systems. Four types of convolution- and correlation-based modes are extracted to illuminate the physical characteristics of scanning imaging and analysis systems by focusing on the probe, specimen, detector, and their relationships. Criteria for identifying these modes are explored. In addition, the physical meanings of general existing coefficients between the independent variables of convolution and correlation are investigated.
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Lei M, Pan J. [Corrosion of biomedical metallic materials]. SHENG WU YI XUE GONG CHENG XUE ZA ZHI = JOURNAL OF BIOMEDICAL ENGINEERING = SHENGWU YIXUE GONGCHENGXUE ZAZHI 2001; 18:624-8, 637. [PMID: 11791324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The recent results of the studies on corrosion of biomedical metallic materials are reviewed. The investigations on in vitro and in vivo corrosion and the correspondent local tissue responses, remote and systematic effects are discussed in order to explore the corrosion mechanism and to estimate the biocompatibility. The further research and development of bio-medical metallic materials are addressed.
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Lowry WE, Huang J, Lei M, Rawlings D, Huang XY. Role of the PHTH module in protein substrate recognition by Bruton's agammaglobulinemia tyrosine kinase. J Biol Chem 2001; 276:45276-81. [PMID: 11577078 DOI: 10.1074/jbc.m104449200] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Defects in Bruton's tyrosine kinase (Btk) are responsible for X chromosome-linked agammaglobulinemia in patients. Mutations in each of the structural domains of Btk have been detected in patients, yet a mechanistic explanation for most of these mutant phenotypes is lacking. To understand the possible role of the unique pleckstrin homology and Tec homology (PHTH) module of Btk, we have compared the enzymatic properties of full-length Btk and a Btk mutant lacking the PHTH module (BtkDeltaPHTH). Here we show that Btk and BtkDeltaPHTH have similar basal catalytic activity but very different abilities to recognize protein substrates. Furthermore, the catalytic domain of Btk is inactive, in contrast to the catalytic domain of the prototypical Src tyrosine kinase that retains full catalytic ability. These data suggest that the PHTH module plays an important role in protein substrate recognition, that Btk and Src likely have different interdomain organizations and regulations, and that alterations in substrate recognition might play a role in X chromosome-linked agammaglobulinemia.
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Zhu J, Peng Z, Lei M. [Analysis on the genotype of measles virus epidemic strains in Dongguan city, Guangdong province in 2000]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2001; 22:355-8. [PMID: 11769691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To analyze the genotype of the measles virus epidemic strains in Dongguan according to the patients suffered measles in 2000. METHODS The saliva of 55 patients with acute measles symptoms were collected and detected with RT-PCR. The PCR products of the 5 samples were sequenced and analyzed with the software DNASTAR. RESULTS The positive detection rate was 87.3%, whereas the positive rate of anti MV-IgM in serum was only 70.9%. 68.8% of the saliva samples of patients with anti MV-IgM negative results showing MV RNA positive. The 293 bp fragment of N gene and 194 bp fragment of M gene were amplified from the vaccine virus and the specimens. The sequences of the epidemic strains were identical in both M gene and N gene. CONCLUSION These results suggested that the outbreak came from a single MV strain. The epidemic strain was obviously different from the standard strains discovered in other countries of the world (the deviation were 1.4%-11.7%) that might belong to H genotype.
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Lei M, Honjo H, Kodama I, Boyett MR. Heterogeneous expression of the delayed-rectifier K+ currents i(K,r) and i(K,s) in rabbit sinoatrial node cells. J Physiol 2001; 535:703-14. [PMID: 11559769 PMCID: PMC2278812 DOI: 10.1111/j.1469-7793.2001.t01-1-00703.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
1. The electrical activity of sinoatrial node cells is heterogeneous. To understand the reasons for this, the density of the delayed-rectifier K+ current and its two components, i(K,r) and i(K,s), as a function of the size (as measured by cell capacitance) of rabbit sinoatrial node cells was investigated using the whole-cell voltage-clamp technique at 35 degrees C. 2. i(K,r) and i(K,s) were isolated using E-4031 and 293B. Features of the E-4031-sensitive and 293B-insensitive currents corresponded well to those of i(K,r), while features of the E-4031-insensitive and 293B-sensitive currents corresponded well to those of i(K,s). 3. The densities of the outward current under control conditions and the drug-sensitive and -insensitive currents were significantly (P < 0.01) correlated with cell capacitance, with current densities being greater in larger cells. 4. The effects of partial blockade of i(K,r) by 0.1 microM E-4031 on spontaneous action potentials were greater in smaller cells. 5. It is concluded that there are cell size-dependent differences in the density of the i(K,r) and i(K,s) components, and these may be involved in the heterogeneity of the electrical activity of single sinoatrial node cells as well as that of the intact sinoatrial node.
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