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Adachi I, Adamczyk K, Aggarwal L, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Aversano M, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becherer F, Becker J, Behera PK, Bennett JV, Bernlochner FU, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhuyan B, Bianchi F, Bilka T, Biswas D, Bobrov A, Bodrov D, Bolz A, Bondar A, Borah J, Bozek A, Bračko M, Branchini P, Briere RA, Browder TE, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang MC, Chang P, Cheaib R, Cheema P, Chekelian V, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Choi SK, Choudhury S, Cochran J, Corona L, Cremaldi LM, Das S, Dattola F, De La Cruz-Burelo E, De La Motte SA, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, Dey S, Dhamija R, Di Canto A, Di Capua F, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dort K, Dossett D, Dreyer S, Dubey S, Dujany G, Ecker P, Eliachevitch M, Epifanov D, Feichtinger P, Ferber T, Ferlewicz D, Fillinger T, Finck C, Finocchiaro G, Fodor A, Forti F, Frey A, Fulsom BG, Gabrielli A, Ganiev E, Garcia-Hernandez M, Garg R, Garmash A, Gaudino G, Gaur V, Gaz A, Gellrich A, Ghevondyan G, Ghosh D, Ghumaryan H, Giakoustidis G, Giordano R, Giri A, Gobbo B, Godang R, Gogota O, Goldenzweig P, Gradl W, Granderath S, Graziani E, Greenwald D, Gruberová Z, Gu T, Guan Y, Gudkova K, Halder S, Han Y, Hara T, Hayasaka K, Hayashii H, Hazra S, Hearty C, Hedges MT, Heidelbach A, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill EC, Hoek M, Hohmann M, Horak P, Hsu CL, Iijima T, Inami K, Inguglia G, Ipsita N, Ishikawa A, Ito S, Itoh R, Iwasaki M, Jackson P, Jacobs WW, Jang EJ, Ji QP, Jia S, Jin Y, Johnson A, Junkerkalefeld H, Kaliyar AB, Kandra J, Kang KH, Karyan G, Kawasaki T, Keil F, Ketter C, Kiesling C, Kim CH, Kim DY, Kim KH, Kim YK, Kindo H, Kinoshita K, Kodyš P, Koga T, Kohani S, Kojima K, Konno T, Korobov A, Korpar S, Kovalenko E, Kowalewski R, Kraetzschmar TMG, Križan P, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumara K, Kunigo T, Kuzmin A, Kwon YJ, Lacaprara S, Lai YT, Lam T, Lanceri L, Lange JS, Laurenza M, Leboucher R, Le Diberder FR, Leitl P, Levit D, Lewis PM, Li C, Li LK, Li Y, Libby J, Liu QY, Liu ZQ, Liventsev D, Longo S, Lueck T, Luo T, Lyu C, Ma Y, Maggiora M, Maharana SP, Maiti R, Maity S, Mancinelli G, Manfredi R, Manoni E, Manthei AC, Mantovano M, Marcantonio D, Marcello S, Marinas C, Martel L, Martellini C, Martini A, Martinov T, Massaccesi L, Masuda M, Matsuda T, Matvienko D, Maurya SK, McKenna JA, Mehta R, Meier F, Merola M, Metzner F, Milesi M, Miller C, Mirra M, Miyabayashi K, Mohanty GB, Molina-Gonzalez N, Mondal S, Moneta S, Moser HG, Mrvar M, Mussa R, Nakamura I, Nakazawa Y, Narimani Charan A, Naruki M, Natkaniec Z, Natochii A, Nayak L, Nazaryan G, Nisar NK, Nishida S, Ogawa S, Ono H, Oskin P, Otani F, Pakhlov P, Pakhlova G, Paladino A, Panta A, Paoloni E, Pardi S, Parham K, Park SH, Paschen B, Passeri A, Patra S, Paul S, Pedlar TK, Peruzzi I, Peschke R, Pestotnik R, Pham F, Piccolo M, Piilonen LE, Podesta-Lerma PLM, Podobnik T, Pokharel S, Praz C, Prell S, Prencipe E, Prim MT, Purwar H, Rad N, Rados P, Raeuber G, Raiz S, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Rizzo G, Robertson SH, Roehrken M, Roney JM, Rostomyan A, Rout N, Russo G, Sahoo D, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schmitt C, Schnepf M, Schwanda C, Seino Y, Selce A, Senyo K, Serrano J, Sevior ME, Sfienti C, Shan W, Sharma C, Shen CP, Shi XD, Shillington T, Shiu JG, Shtol D, Shwartz B, Sibidanov A, Simon F, Singh JB, Skorupa J, Sobie RJ, Sobotzik M, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stavroulakis P, Stefkova S, Stottler ZS, Stroili R, Strube J, Sumihama M, Sumisawa K, Sutcliffe W, Svidras H, Takahashi M, Takizawa M, Tamponi U, Tanida K, Tenchini F, Thaller A, Tittel O, Tiwary R, Tonelli D, Torassa E, Toutounji N, Trabelsi K, Tsaklidis I, Uchida M, Ueda I, Uematsu Y, Uglov T, Unger K, Unno Y, Uno K, Uno S, Urquijo P, Ushiroda Y, Vahsen SE, van Tonder R, Varner GS, Varvell KE, Veronesi M, Vismaya VS, Vitale L, Vobbilisetti V, Volpe R, Wach B, Waheed E, Wakai M, Wallner S, Wang E, Wang MZ, Wang Z, Warburton A, Watanabe M, Watanuki S, Welsch M, Wessel C, Xu XP, Yabsley BD, Yamada S, Yan W, Yang SB, Yin JH, Yoshihara K, Yuan CZ, Zani L, Zhang Y, Zhilich V, Zhou JS, Zhou QD, Zhukova VI, Žlebčík R. Tests of Light-Lepton Universality in Angular Asymmetries of B^{0}→D^{*-}ℓν Decays. Phys Rev Lett 2023; 131:181801. [PMID: 37977641 DOI: 10.1103/physrevlett.131.181801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 09/29/2023] [Indexed: 11/19/2023]
Abstract
We present the first comprehensive tests of the universality of the light leptons in the angular distributions of semileptonic B^{0}-meson decays to charged spin-1 charmed mesons. We measure five angular-asymmetry observables as functions of the decay recoil that are sensitive to lepton-universality-violating contributions. We use events where one neutral B is fully reconstructed in ϒ(4S)→BB[over ¯] decays in data corresponding to 189 fb^{-1} integrated luminosity from electron-positron collisions collected with the Belle II detector. We find no significant deviation from the standard model expectations.
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Adachi I, Aggarwal L, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Aversano M, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becker J, Behera PK, Bennett JV, Bernlochner FU, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhuyan B, Bianchi F, Bilka T, Biswas D, Bodrov D, Bondar A, Bozek A, Bračko M, Branchini P, Briere RA, Browder TE, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang MC, Chang P, Cheema P, Chekelian V, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Choi SK, Choudhury S, Cochran J, Corona L, Das S, Dattola F, De La Motte SA, de Marino G, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, Dey S, Dhamija R, Di Canto A, Di Capua F, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dort K, Dreyer S, Dubey S, Dujany G, Ecker P, Epifanov D, Feichtinger P, Ferlewicz D, Finck C, Finocchiaro G, Fodor A, Forti F, Frey A, Fulsom BG, Gabrielli A, Ganiev E, Garcia-Hernandez M, Garmash A, Gaudino G, Gaur V, Gaz A, Gellrich A, Ghevondyan G, Ghosh D, Ghumaryan H, Giakoustidis G, Giordano R, Giri A, Glazov A, Gobbo B, Godang R, Gogota O, Goldenzweig P, Gradl W, Graziani E, Greenwald D, Gruberová Z, Gu T, Guan Y, Gudkova K, Han Y, Hayasaka K, Hayashii H, Hazra S, Hearty C, Heredia de la Cruz I, Hershenhorn A, Higuchi T, Hill EC, Hoek M, Hohmann M, Hsu CL, Humair T, Iijima T, Inami K, Ipsita N, Ishikawa A, Ito S, Itoh R, Iwasaki M, Jackson P, Jacobs WW, Jaffe DE, Jang EJ, Ji QP, Jia S, Jin Y, Junkerkalefeld H, Kaliyar AB, Kandra J, Karyan G, Kawasaki T, Keil F, Ketter C, Kiesling C, Kim CH, Kim DY, Kim KH, Kim YK, Kindo H, Kinoshita K, Kodyš P, Koga T, Kohani S, Kojima K, Korobov A, Korpar S, Kowalewski R, Kraetzschmar TMG, Križan P, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumar R, Kumara K, Kuzmin A, Kwon YJ, Lacaprara S, Lai YT, Lam T, Lange JS, Laurenza M, Leboucher R, Le Diberder FR, Leitl P, Levit D, Lewis PM, Li LK, Libby J, Liu QY, Liu ZQ, Liventsev D, Longo S, Lueck T, Lyu C, Ma Y, Maggiora M, Maharana SP, Maiti R, Maity S, Manfredi R, Manoni E, Mantovano M, Marcantonio D, Marcello S, Marinas C, Martellini C, Martini A, Martinov T, Massaccesi L, Masuda M, Matsuda T, Matsuoka K, Matvienko D, Maurya SK, McKenna JA, Mehta R, Meier F, Merola M, Metzner F, Milesi M, Miller C, Mirra M, Miyabayashi K, Mohanty GB, Molina-Gonzalez N, Mondal S, Moneta S, Moser HG, Mrvar M, Mussa R, Nakamura I, Nakazawa Y, Narimani Charan A, Naruki M, Natkaniec Z, Natochii A, Nayak L, Nazaryan G, Nisar NK, Nishida S, Ono H, Otani F, Oxford ER, Pakhlov P, Pakhlova G, Paladino A, Panta A, Paoloni E, Pardi S, Passeri A, Patra S, Paul S, Pedlar TK, Peruzzi I, Peschke R, Pestotnik R, Pham F, Piccolo M, Piilonen LE, Podobnik T, Pokharel S, Praz C, Prell S, Prencipe E, Prim MT, Purwar H, Rados P, Raeuber G, Raiz S, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Rizzo G, Roney JM, Rostomyan A, Rout N, Russo G, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schmitt C, Schwanda C, Schwartz AJ, Seino Y, Selce A, Senyo K, Serrano J, Sevior ME, Sfienti C, Shan W, Shi XD, Shillington T, Shiu JG, Shtol D, Sibidanov A, Simon F, Sobie RJ, Sobotzik M, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stavroulakis P, Stottler ZS, Stroili R, Sumihama M, Svidras H, Takahashi M, Takizawa M, Tamponi U, Tanida K, Tenchini F, Tittel O, Tonelli D, Torassa E, Trabelsi K, Tsaklidis I, Unger K, Unno Y, Uno K, Uno S, Urquijo P, Ushiroda Y, Vahsen SE, van Tonder R, Varvell KE, Veronesi M, Vismaya VS, Vitale L, Volpe R, Wach B, Wallner S, Wang E, Wang MZ, Wang XL, Wang Z, Warburton A, Watanabe M, Wessel C, Won E, Xu XP, Yabsley BD, Yamada S, Yan W, Yang SB, Yoshihara K, Yuan CZ, Yusa Y, Zhang Y, Zhilich V, Zhou JS, Zhou QD, Zhukova VI, Žlebčík R. Precise Measurement of the D_{s}^{+} Lifetime at Belle II. Phys Rev Lett 2023; 131:171803. [PMID: 37955504 DOI: 10.1103/physrevlett.131.171803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/14/2023] [Indexed: 11/14/2023]
Abstract
We measure the lifetime of the D_{s}^{+} meson using a data sample of 207 fb^{-1} collected by the Belle II experiment running at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The lifetime is determined by fitting the decay-time distribution of a sample of 116×10^{3} D_{s}^{+}→ϕπ^{+} decays. Our result is τ_{D_{s}^{+}}=(499.5±1.7±0.9) fs, where the first uncertainty is statistical and the second is systematic. This result is significantly more precise than previous measurements.
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Adachi I, Adamczyk K, Aggarwal L, Ahmed H, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Aversano M, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee S, Bansal S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becker J, Behera PK, Bennett JV, Bernieri E, Bernlochner FU, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhardwaj V, Bhuyan B, Bianchi F, Bilka T, Bilokin S, Biswas D, Bobrov A, Bodrov D, Bolz A, Borah J, Bozek A, Bračko M, Branchini P, Browder TE, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang MC, Chang P, Cheaib R, Cheema P, Chekelian V, Chen YQ, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Cho SJ, Choi SK, Choudhury S, Cinabro D, Cochran J, Corona L, Cremaldi LM, Cunliffe S, Czank T, Das S, Dattola F, De La Cruz-Burelo E, De La Motte SA, de Marino G, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, Dey S, De Yta-Hernandez A, Dhamija R, Di Canto A, Di Capua F, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dort K, Dossett D, Dreyer S, Dubey S, Dujany G, Ecker P, Eliachevitch M, Epifanov D, Feichtinger P, Ferber T, Ferlewicz D, Fillinger T, Finck C, Finocchiaro G, Fodor A, Forti F, Frey A, Fulsom BG, Gabrielli A, Ganiev E, Garcia-Hernandez M, Garmash A, Gaudino G, Gaur V, Gaz A, Gellrich A, Ghevondyan G, Ghosh D, Ghumaryan H, Giakoustidis G, Giordano R, Giri A, Glazov A, Gobbo B, Godang R, Gogota O, Goldenzweig P, Gradl W, Grammatico T, Granderath S, Graziani E, Greenwald D, Gruberová Z, Gu T, Guan Y, Gudkova K, Guilliams J, Halder S, Han Y, Hara T, Hayasaka K, Hayashii H, Hazra S, Hearty C, Hedges MT, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill EC, Hirata H, Hoek M, Hohmann M, Hsu CL, Humair T, Iijima T, Inami K, Inguglia G, Ipsita N, Ishikawa A, Ito S, Itoh R, Iwasaki M, Jackson P, Jacobs WW, Jaffe DE, Jang EJ, Ji QP, Jia S, Jin Y, Johnson A, Joo KK, Junkerkalefeld H, Kakuno H, Kaleta M, Kalita D, Kaliyar AB, Kandra J, Kang KH, Kang S, Karl R, Karyan G, Kawasaki T, Keil F, Ketter C, Kiesling C, Kim CH, Kim DY, Kim KH, Kim YK, Kindo H, Kodyš P, Koga T, Kohani S, Kojima K, Konno T, Korobov A, Korpar S, Kovalenko E, Kowalewski R, Kraetzschmar TMG, Križan P, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumar R, Kumara K, Kunigo T, Kuzmin A, Kwon YJ, Lacaprara S, Lai YT, Lam T, Lanceri L, Lange JS, Laurenza M, Lautenbach K, Leboucher R, Le Diberder FR, Leitl P, Levit D, Lewis PM, Li C, Li LK, Li YB, Libby J, Lieret K, Liu QY, Liu ZQ, Liventsev D, Longo S, Lozar A, Lueck T, Lyu C, Ma Y, Maggiora M, Maharana SP, Maiti R, Maity S, Manfredi R, Manoni E, Manthei AC, Mantovano M, Marcantonio D, Marcello S, Marinas C, Martel L, Martellini C, Martini A, Martinov T, Massaccesi L, Masuda M, Matsuda T, Matsuoka K, Matvienko D, Maurya SK, McKenna JA, Mehta R, Merola M, Metzner F, Milesi M, Miller C, Mirra M, Miyabayashi K, Miyake H, Mizuk R, Mohanty GB, Molina-Gonzalez N, Mondal S, Moneta S, Moser HG, Mrvar M, Mussa R, Nakamura I, Nakamura KR, Nakao M, Nakayama H, Nakazawa H, Nakazawa Y, Narimani Charan A, Naruki M, Narwal D, Natkaniec Z, Natochii A, Nayak L, Nayak M, Nazaryan G, Niebuhr C, Nisar NK, Nishida S, Ogawa S, Ono H, Onuki Y, Oskin P, Otani F, Pakhlov P, Pakhlova G, Paladino A, Panta A, Paoloni E, Pardi S, Parham K, Park J, Park SH, Paschen B, Passeri A, Patra S, Paul S, Pedlar TK, Peruzzi I, Peschke R, Pestotnik R, Pham F, Piccolo M, Piilonen LE, Pinna Angioni G, Podesta-Lerma PLM, Podobnik T, Pokharel S, Polat L, Praz C, Prell S, Prencipe E, Prim MT, Purwar H, Rad N, Rados P, Raeuber G, Raiz S, Ramirez Morales A, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Rizzo G, Rizzuto LB, Robertson SH, Rodríguez Pérez D, Roehrken M, Roney JM, Rostomyan A, Rout N, Russo G, Sahoo D, Sanders DA, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schnepf M, Schueler J, Schwanda C, Seino Y, Selce A, Senyo K, Serrano J, Sevior ME, Sfienti C, Shan W, Sharma C, Shen CP, Shi XD, Shillington T, Shiu JG, Shtol D, Shwartz B, Sibidanov A, Simon F, Singh JB, Skorupa J, Sobie RJ, Sobotzik M, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stavroulakis P, Stefkova S, Stottler ZS, Stroili R, Strube J, Sue Y, Sumihama M, Sumisawa K, Sutcliffe W, Suzuki SY, Svidras H, Takahashi M, Takizawa M, Tamponi U, Tanaka S, Tanida K, Tanigawa H, Tenchini F, Thaller A, Tiwary R, Tonelli D, Torassa E, Toutounji N, Trabelsi K, Tsaklidis I, Uchida M, Ueda I, Uematsu Y, Uglov T, Unger K, Unno Y, Uno K, Uno S, Urquijo P, Ushiroda Y, Vahsen SE, van Tonder R, Varner GS, Varvell KE, Vinokurova A, Vismaya VS, Vitale L, Vobbilisetti V, Volpe R, Vossen A, Wach B, Wakai M, Wakeling HM, Wallner S, Wang E, Wang MZ, Wang XL, Wang Z, Warburton A, Watanabe M, Watanuki S, Welsch M, Wessel C, Won E, Xu XP, Yabsley BD, Yamada S, Yan W, Yang SB, Ye H, Yelton J, Yin JH, Yook YM, Yoshihara K, Yuan CZ, Yusa Y, Zani L, Zhai Y, Zhang Y, Zhilich V, Zhou JS, Zhou QD, Zhou XY, Zhukova VI, Žlebčík R. Search for a τ^{+}τ^{-} Resonance in e^{+}e^{-}→μ^{+}μ^{-}τ^{+}τ^{-} Events with the Belle II Experiment. Phys Rev Lett 2023; 131:121802. [PMID: 37802942 DOI: 10.1103/physrevlett.131.121802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/08/2023] [Indexed: 10/08/2023]
Abstract
We report the first search for a nonstandard-model resonance decaying into τ pairs in e^{+}e^{-}→μ^{+}μ^{-}τ^{+}τ^{-} events in the 3.6-10 GeV/c^{2} mass range. We use a 62.8 fb^{-1} sample of e^{+}e^{-} collisions collected at a center-of-mass energy of 10.58 GeV by the Belle II experiment at the SuperKEKB collider. The analysis probes three different models predicting a spin-1 particle coupling only to the heavier lepton families, a Higgs-like spin-0 particle that couples preferentially to charged leptons (leptophilic scalar), and an axionlike particle, respectively. We observe no evidence for a signal and set exclusion limits at 90% confidence level on the product of cross section and branching fraction into τ pairs, ranging from 0.7 to 24 fb, and on the couplings of these processes. We obtain world-leading constraints on the couplings for the leptophilic scalar model for masses above 6.5 GeV/c^{2} and for the axionlike particle model over the entire mass range.
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Zhou JS, Xu RZ, Yu XQ, Cheng FJ, Zhao WX, Du X, Wang SZ, Zhang QQ, Gu X, He SM, Li YD, Ren MQ, Ma XC, Xue QK, Chen YL, Song CL, Yang LX. Evidence for Band Renormalizations in Strong-Coupling Superconducting Alkali-Fulleride Films. Phys Rev Lett 2023; 130:216004. [PMID: 37295091 DOI: 10.1103/physrevlett.130.216004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 02/06/2023] [Accepted: 04/17/2023] [Indexed: 06/12/2023]
Abstract
There has been a long-standing debate about the mechanism of the unusual superconductivity in alkali-intercalated fullerides. In this Letter, using high-resolution angle-resolved photoemission spectroscopy, we systematically investigate the electronic structures of superconducting K_{3}C_{60} thin films. We observe a dispersive energy band crossing the Fermi level with the occupied bandwidth of about 130 meV. The measured band structure shows prominent quasiparticle kinks and a replica band involving the Jahn-Teller active phonon modes, which reflects strong electron-phonon coupling in the system. The electron-phonon coupling constant is estimated to be about 1.2, which dominates the quasiparticle mass renormalization. Moreover, we observe an isotropic nodeless superconducting gap beyond the mean-field estimation (2Δ/k_{B}T_{c}≈5). Both the large electron-phonon coupling constant and large reduced superconducting gap suggest a strong-coupling superconductivity in K_{3}C_{60}, while the electronic correlation effect is suggested by the observation of a waterfall-like band dispersion and the small bandwidth compared with the effective Coulomb interaction. Our results not only directly visualize the crucial band structure but also provide important insights into the mechanism of the unusual superconductivity of fulleride compounds.
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Affiliation(s)
- J S Zhou
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - R Z Xu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - X Q Yu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - F J Cheng
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - W X Zhao
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - X Du
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - S Z Wang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - Q Q Zhang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - X Gu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - S M He
- Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Y D Li
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - M Q Ren
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - X C Ma
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Q K Xue
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
| | - Y L Chen
- Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
- School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai 201210, China
- ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - C L Song
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - L X Yang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
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Xu RZ, Gu X, Zhao WX, Zhou JS, Zhang QQ, Du X, Li YD, Mao YH, Zhao D, Huang K, Zhang CF, Wang F, Liu ZK, Chen YL, Yang LX. Development of a laser-based angle-resolved-photoemission spectrometer with sub-micrometer spatial resolution and high-efficiency spin detection. Rev Sci Instrum 2023; 94:023903. [PMID: 36859063 DOI: 10.1063/5.0106351] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Angle-resolved photoemission spectroscopy with sub-micrometer spatial resolution (μ-ARPES), has become a powerful tool for studying quantum materials. To achieve sub-micrometer or even nanometer-scale spatial resolution, it is important to focus the incident light beam (usually from synchrotron radiation) using x-ray optics, such as the zone plate or ellipsoidal capillary mirrors. Recently, we developed a laser-based μ-ARPES with spin-resolution (LMS-ARPES). The 177 nm laser beam is achieved by frequency-doubling a 355 nm beam using a KBBF crystal and subsequently focused using an optical lens with a focal length of about 16 mm. By characterizing the focused spot size using different methods and performing spatial-scanning photoemission measurement, we confirm the sub-micron spatial resolution of the system. Compared with the μ-ARPES facilities based on the synchrotron radiation, our LMS-ARPES system is not only more economical and convenient, but also with higher photon flux (>5 × 1013 photons/s), thus enabling the high-resolution and high-statistics measurements. Moreover, the system is equipped with a two-dimensional spin detector based on exchange scattering at a surface-passivated iron film grown on a W(100) substrate. We investigate the spin structure of the prototype topological insulator Bi2Se3 and reveal a high spin-polarization rate, confirming its spin-momentum locking property. This lab-based LMS-ARPES will be a powerful research tool for studying the local fine electronic structures of different condensed matter systems, including topological quantum materials, mesoscopic materials and structures, and phase-separated materials.
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Affiliation(s)
- R Z Xu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - X Gu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - W X Zhao
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - J S Zhou
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Q Q Zhang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - X Du
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Y D Li
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Y H Mao
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, Hunan 410073, China
| | - D Zhao
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - K Huang
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C F Zhang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, Hunan 410073, China
| | - F Wang
- ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - Z K Liu
- ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - Y L Chen
- ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - L X Yang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
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6
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Cao HM, Lian HW, E Y, Duan R, Zhou JS, Chen XL, Jiang T. Clopidogrel with Aspirin versus Aspirin Alone following Intravenous Thrombolysis in Minor Stroke: A 1-Year Follow-Up Study. Brain Sci 2022; 13:brainsci13010020. [PMID: 36672002 PMCID: PMC9856559 DOI: 10.3390/brainsci13010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE The objective of this study was to investigate the long-term effect of dual antiplatelet therapy (DAPT) using clopidogrel plus aspirin versus aspirin monotherapy after intravenous thrombolysis on functional outcomes in patients with minor stroke. METHODS Patients with acute ischemic stroke with a National Institutes of Health Stroke Scale score ≤ 5 who received either DAPT or aspirin monotherapy following recombinant tissue plasminogen activator intravenous thrombolysis were studied. Data recorded between January 2017 and December 2020 were retrospectively analyzed. The primary efficacy outcome was functional improvement at 1 year, measured by a 1-point decrease across modified Rankin Scale (mRS) scores. Secondary outcomes included complete rehabilitation (mRS = 0), an excellent outcome (mRS = 0-1), and a favorable outcome (mRS = 0-2) at 1 year, as well as the rates of stroke recurrence and all-cause mortality within 1 year. RESULTS A total of 238 patients were included, and follow-up data were available for 205 patients (86.1%). The distribution of 1-year outcomes on the mRS favored DAPT over aspirin monotherapy (adjusted common odds ratio (OR), 2.19; 95% confidence interval (CI), 1.12-4.28; p = 0.022). Patients who received DAPT, compared with those receiving aspirin alone, were more likely to achieve complete rehabilitation (adjusted OR, 2.44; 95% CI, 1.21-4.95; p = 0.013) at the 1-year follow-up. Additionally, the percentages of an excellent outcome and a favorable outcome did not differ, and the rates of stroke recurrence and all-cause mortality were comparable during the 1-year follow-up. CONCLUSIONS Clopidogrel with aspirin following intravenous thrombolysis was associated with improved functional outcome at the 1-year follow-up for patients with minor stroke, and it did not increase the stroke recurrence rate and mortality.
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Affiliation(s)
- Hai-Ming Cao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Hui-Wen Lian
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Yan E
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Rui Duan
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Xiang-Liang Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
- Correspondence:
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7
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Chang C, Zhou JS, Liu KX, Chen A, Sun YC. [Significance of aspergillus fumigatus-specific IgG in the diagnosis of allergic bronchopulmonary aspergillosis]. Zhonghua Yi Xue Za Zhi 2022; 102:2214-2216. [PMID: 35872587 DOI: 10.3760/cma.j.cn112137-20220227-00406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The data of 18 patients with allergic bronchopulmonary aspergillosis (ABPA) who received aspergillus fumigatus-specific IgG detection from 2015 to 2021 in Peking University Third Hospital were retrospectively analyzed. Among them, 11 were male and 7 were female, aged 18-79 years. All patients had a history of asthma or symptoms of cough and asthma, and aspergillus fumigatus-specific IgE was positive; 16 patients had total serum IgE>500 U/ml, of which 13 patients had total serum IgE>1 000 U/ml. Among other diagnostic indicators, peripheral blood eosinophils were >0.5×109/L in 16 cases; lung CT showed bronchiectasis in 15 cases; serum aspergillus fumigatus-specific IgG was positive (>120 AU/ml) in 10 cases. There was no significant difference in serum total IgE level, peripheral blood eosinophil count, and bronchiectasis ratio between positive and negative cases of aspergillus fumigatus-specific IgG (all P>0.05). In this study, the positive rate of aspergillus fumigatus-specific IgG in patients with ABPA was more than 50%, which has auxiliary value in the diagnosis of ABPA.
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Affiliation(s)
- C Chang
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China
| | - J S Zhou
- Laboratory Department, Peking University Third Hospital, Beijing 100191,China
| | - K X Liu
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China
| | - A Chen
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Y C Sun
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China
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Wang Q, Huang YYY, Li LR, Zhou JS, Li Y, Shen L, Fan GK. [The value of high-definition intelligent endoscopy combined with stroboscopy in the diagnosis and treatment of vocal cord leukoplakia]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:868-873. [PMID: 35866281 DOI: 10.3760/cma.j.cn115330-20211021-00678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To evaluate the clinical value of high-definition intelligent endoscopy (iSCAN) combined with stroboscopy in identifying vocal cord leukoplakia. Methods: Seventy-nine patients with vocal cord leukoplakia who underwent CO2 laser laryngeal microsurgery and diagnosed by histopathology were recruited between October 2020 to August 2021. The morphological features, microvascular morphology and mucosal waves were observed by stroboscope; SPSS 20.0 software was used for statistical analysis. Results: There were 79 patients with a total of 119 lesions (56 on left and 63 on right).Pathological examination showed that 51 sides of the vocal cords were malignant lesions (severe dysplasia, carcinoma in situ and invasive carcinoma), and 68 sides were benign lesions.Under stroboscopy, 69 sides of mucosal wave were normal or slightly decreased, and 50 sides were severely decreased or disappeared.The decrease degree of mucosal wave was positively correlated with malignant lesions (ρ=0.687, P<0.001).Under iSCAN endoscopy, there was a positive correlation between the morphological changes of microvessels at the lesion site (vertical) and the malignant lesion (ρ=0.687, P<0.001).Univariate analysis showed that lesion size, thickness, uneven color, granular elevation, peripheral erythema and asymmetry were positively correlated with malignant lesions (ρ=0.530, 0.401, 0.538, 0.315, 0.497, 0.281, P<0.05).Logistic regression analysis showed that the risk of pathological malignancy with large lesions was 5.437 times higher than those of small lesions, the vertical vascular changes under iSCAN were 8.711 times higher than that of normal vascular morphology, and the severe reduction or disappearance of mucosal waves was 9.12 times higher than that of normal or mild reduction of mucosal waves. Conclusion: ISCAN can be combined with staphyloscopy to comprehensively observe and evaluate the changes of vocal cord morphology, submucosal microvessels and mucosal wave of vocal cord in patients with vocal cord leukoplosis, thus improving the ability to distinguish benign and malignant lesions.
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Affiliation(s)
- Q Wang
- Department of Otorhinolaryngology,the Second Affiliated Hospital Zhejiang University School of Medicne, Hangzhou 310000, China
| | - Y Y Y Huang
- Department of Otorhinolaryngology,the Second Affiliated Hospital Zhejiang University School of Medicne, Hangzhou 310000, China
| | - L R Li
- Department of Otorhinolaryngology,the Second Affiliated Hospital Zhejiang University School of Medicne, Hangzhou 310000, China
| | - J S Zhou
- Department of Otorhinolaryngology,the Second Affiliated Hospital Zhejiang University School of Medicne, Hangzhou 310000, China
| | - Y Li
- Department of Otorhinolaryngology,the Second Affiliated Hospital Zhejiang University School of Medicne, Hangzhou 310000, China
| | - L Shen
- Department of Otorhinolaryngology,the Second Affiliated Hospital Zhejiang University School of Medicne, Hangzhou 310000, China
| | - G K Fan
- Department of Otorhinolaryngology,the Second Affiliated Hospital Zhejiang University School of Medicne, Hangzhou 310000, China
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Chen NH, Zhang YM, Jiang FP, Liu S, Zhao HD, Hou JK, Jiang T, Shi JQ, Zhou JS, Zhang YD. FLAIR vascular hyperintensity predicts early neurological deterioration in patients with acute ischemic stroke receiving endovascular thrombectomy. Neurol Sci 2022; 43:3747-3757. [PMID: 35064345 DOI: 10.1007/s10072-021-05853-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/26/2021] [Indexed: 02/06/2023]
Abstract
Fluid-attenuated inversion recovery vascular hyperintensity (FVH) is frequently observed in patients with acute ischemic stroke (AIS). FVH is associated with functional outcome at 3 months in AIS patients receiving endovascular thrombectomy. In the present study, we assessed whether FVH predicted early neurological deterioration (END) and hemorrhagic transformation (HT) within 72 h in AIS patients receiving endovascular thrombectomy. We retrospectively analyzed 104 patients with acute internal-carotid-artery or proximal middle-cerebral-artery occlusion within 16 h after symptom onset. Before thrombectomy, all patients underwent brain magnetic resonance imaging. END was defined as an increase of 4 points or more from baseline National Institutes of Health Stroke Scale (NIHSS) during 72 h following onset. HT was assessed by brain computed tomography. Statistical analyses were performed to predict END and HT. The proportion of high FVH score, high American Society of Intervention and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) grade in non-END group was higher than that in END group (p < 0.001, p < 0.001, respectively). FVH score was positively correlated with ASITN/SIR grade (r = 0.461, p < 0.001). FVH score was a predictor factor for END (adjusted OR, 13.552; 95% CI, 2.408-76.260; p = 0.003), while FVH score was not a predictor factor for HT. Furthermore, NIHSS at admission (adjusted OR, 1.112; 95% CI, 1.006-1.228; p = 0.038) and high-density lipoprotein cholesterol (adjusted OR, 18.865; 95% CI, 2.998-118.683; p = 0.002) were predictor factors for HT. To assess FVH score before thrombectomy might be useful for predicting END in AIS patients receiving endovascular thrombectomy.
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Affiliation(s)
- Ni-Hong Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China
| | - Yi-Ming Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China
| | - Fu-Ping Jiang
- Department of Geriatrics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, 210006, People's Republic of China
| | - Shen Liu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China
| | - Hong-Dong Zhao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China
| | - Jian-Kang Hou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China
| | - Jian-Quan Shi
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China.
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China.
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu Province, 210006, People's Republic of China.
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10
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Lin X, Lin S, Cui X, Zou D, Jiang F, Zhou J, Chen N, Zhao Z, Zhang J, Zou J. Prediction-Driven Decision Support for Patients With Mild Stroke: A Model Based on Machine Learning Algorithms. Front Neurol 2022; 12:761092. [PMID: 35002923 PMCID: PMC8733999 DOI: 10.3389/fneur.2021.761092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/22/2021] [Indexed: 11/30/2022] Open
Abstract
Background and Purpose: Treatment for mild stroke remains an open question. We aim to develop a decision support tool based on machine learning (ML) algorithms, called DAMS (Disability After Mild Stroke), to identify mild stroke patients who would be at high risk of post-stroke disability (PSD) if they only received medical therapy and, more importantly, to aid neurologists in making individual clinical decisions in emergency contexts. Methods: Ischemic stroke patients were prospectively recorded in the National Advanced Stroke Center of Nanjing First Hospital (China) between July 2016 and September 2020. The exclusion criteria were patients who received thrombolytic therapy, age <18 years, lack of 3-month modified Rankin Scale (mRS), disabled before the index stroke, with an admission National Institute of Health stroke scale (NIHSS) > 5. The primary outcome was PSD, corresponding to 3-month mRS ≥ 2. We developed five ML models and assessed the area under curve (AUC) of receiver operating characteristic, calibration curve, and decision curve analysis. The optimal ML model was selected to be DAMS. In addition, SHapley Additive exPlanations (SHAP) approach was introduced to rank the feature importance. Finally, rapid-DAMS (R-DAMS) was constructed for a more urgent situation based on DAMS. Results: A total of 1,905 mild stroke patients were enrolled in this study, and patients with PSD accounted for 23.4% (447). There was no difference in AUCs between the five models (ranged from 0.691 to 0.823). Although there was similar discriminative performance between ML models, the support vector machine model exhibited higher net benefit and better calibration (Brier score, 0.159, calibration slope, 0.935, calibration intercept, 0.035). Therefore, this model was selected for DAMS. In addition, SHAP approach showed that the most crucial feature was NIHSS on admission. Finally, R-DAMS was constructed and there was similar discriminative performance between R-DAMS and DAMS, but the former performed worse on calibration. Conclusions: DAMS and R-DAMS, as prediction-driven decision support tools, were designed to aid clinical decision-making for mild stroke patients in emergency contexts. In addition, even within a narrow range of baseline scores, NIHSS on admission is the strongest feature that contributed to the prediction.
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Affiliation(s)
- Xinping Lin
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Shiteng Lin
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - XiaoLi Cui
- Department of Neurology, Nanjing Yuhua Hospital, Yuhua Branch of Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Daizun Zou
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China.,Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - FuPing Jiang
- Department of Geriatrics, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - JunShan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - NiHong Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Zhihong Zhao
- Department of Neurology, The First Affiliated Hospital (People's Hospital of Hunan Province), Hunan Normal University, Changsha, China
| | - Juan Zhang
- Department of Neurology, Nanjing Yuhua Hospital, Yuhua Branch of Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jianjun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,Department of Clinical Pharmacology, Nanjing First Hospital, China Pharmaceutical University, Nanjing, China
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11
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Meng XX, Liu J, Li JX, Yang N, Zhou JS, Cui LY. [Analysis of syphilis antibody screening results of outpatients and inpatients in a hospital in Beijing from 2016 to 2020]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:1456-1460. [PMID: 34963243 DOI: 10.3760/cma.j.cn112150-20210704-00635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: The results of syphilis antibody screening in Peking University Third Hospital from 2016 to 2020 were analyzed,to explore the characteristics of sex, age and distribution of patients with positive syphilis antibody. Methods: A retrospective study was conducted to collect the results of syphilis antibody in outpatients and inpatients of Peking University Third Hospital from 2016 to 2020. Syphilis antibodies were screened in 626 528 patients aged 1-98 years, 4 232 were retested positive by TPPA test, including 2 132 males (50.4%) and 2 100 females (49.6%). Chemiluminescence immunoassay (CMIA) was used for syphilis antibody screening, and Treponema pallidum particle agglutination (TPPA) test was used for reexamination. SPSS20.0 data statistical analysis software was used to analyze the detection rate, age, sex, department and clinical diagnosis of patients with positive syphilis antibody by χ² test. Results: Among 626 528 patients who were positive for treponema pallidum antibody screening, 4 232 were retested positive by TPPA test, accounting for 0.68% of the total number of patients tested. The number of syphilis tests increased year by year, however the positive detection rate decreased. The positive detection rate of syphilis antibody in 2020 decreased by 18.9% compared with 2016. The positive rate of syphilis antibody in male patients was higher than that in female patients, accounting for 0.80% and 0.59% of the total number of patients tested respectively. The positive rate of syphilis antibody of different genders increased with age, the total positive rate of 0-20, 21-40, 41-60, 61-80,>80 years old were 0.15%, 0.45%, 0.95%, 1.07% and 1.41%, respectively. While the increase rate of males was higher than that of females. The positive rate of male over 80 years old was 18.13 times of the group of 0-20 years old, and 5.54 times in women. The top 6 departments with positive syphilis antibody detection rate were emergency department, oncology department, respiratory department, geriatrics department, endocrinology department and neurology department, and the positive rates were 1.79% (104/5 810),1.46% (55/3 767),1.20% (74/6 167),1.20% (22/1 833),1.10% (32/2 909),1.09% (94/8 624), respectively. From the analysis of clinical diagnosis, the proportion of positive syphilis antibody in infertile patients (0.64%, 672/104 911) was higher than that in naturally conceived patients (0.10%, 24/23 969). Conclusions: From 2016 to 2020, the positive detection rate of syphilis antibody in Peking University Third Hospital decreased year by year. However, the positive detection rate increased with the age of patients. The positive rate of syphilis antibody in male was higher than that in female. The positive rate of syphilis antibody in pregnant women was lower than that in infertile patients.
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Affiliation(s)
- X X Meng
- Department of Clinical Laboratory, Peking University Third Hospital,Beijing 100191,China
| | - J Liu
- Department of Clinical Laboratory, Peking University Third Hospital,Beijing 100191,China
| | - J X Li
- Department of Clinical Laboratory, Rizhao Hospital of Traditional Chinese Medicine,Rizhao 276800,China
| | - N Yang
- Department of Blood Transfusion, Peking University Third Hospital,Beijing 100191,China
| | - J S Zhou
- Department of Clinical Laboratory, Peking University Third Hospital,Beijing 100191,China
| | - L Y Cui
- Department of Clinical Laboratory, Peking University Third Hospital,Beijing 100191,China
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12
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Kang L, Du X, Zhou JS, Gu X, Chen YJ, Xu RZ, Zhang QQ, Sun SC, Yin ZX, Li YW, Pei D, Zhang J, Gu RK, Wang ZG, Liu ZK, Xiong R, Shi J, Zhang Y, Chen YL, Yang LX. Band-selective Holstein polaron in Luttinger liquid material A 0.3MoO 3 (A = K, Rb). Nat Commun 2021; 12:6183. [PMID: 34702828 PMCID: PMC8548323 DOI: 10.1038/s41467-021-26078-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/14/2021] [Indexed: 11/09/2022] Open
Abstract
(Quasi-)one-dimensional systems exhibit various fascinating properties such as Luttinger liquid behavior, Peierls transition, novel topological phases, and the accommodation of unique quasiparticles (e.g., spinon, holon, and soliton, etc.). Here we study molybdenum blue bronze A0.3MoO3 (A = K, Rb), a canonical quasi-one-dimensional charge-density-wave material, using laser-based angle-resolved photoemission spectroscopy. Our experiment suggests that the normal phase of A0.3MoO3 is a prototypical Luttinger liquid, from which the charge-density-wave emerges with decreasing temperature. Prominently, we observe strong renormalizations of band dispersions, which are recognized as the spectral function of Holstein polaron derived from band-selective electron-phonon coupling in the system. We argue that the strong electron-phonon coupling plays an important role in electronic properties and the charge-density-wave transition in blue bronzes. Our results not only reconcile the long-standing heavy debates on the electronic properties of blue bronzes but also provide a rare platform to study interesting excitations in Luttinger liquid materials.
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Affiliation(s)
- L Kang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - X Du
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - J S Zhou
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - X Gu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Y J Chen
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - R Z Xu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Q Q Zhang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - S C Sun
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Z X Yin
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Y W Li
- School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai, 200031, China
| | - D Pei
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, UK
| | - J Zhang
- School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China
| | - R K Gu
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, UK
| | - Z G Wang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China
| | - Z K Liu
- School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai, 200031, China
| | - R Xiong
- Department of Physics, Wuhan University, Wuhan, 430072, China
| | - J Shi
- Department of Physics, Wuhan University, Wuhan, 430072, China
| | - Y Zhang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China
| | - Y L Chen
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China. .,School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China. .,ShanghaiTech Laboratory for Topological Physics, Shanghai, 200031, China. .,Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, UK.
| | - L X Yang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China. .,Frontier Science Center for Quantum Information, Beijing, 100084, China.
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Xu ZH, Deng QW, Zhai Q, Zhang Q, Wang ZJ, Chen WX, Gu MM, Jiang T, Zhou JS, Zhang YD. Clinical significance of stroke nurse in patients with acute ischemic stroke receiving intravenous thrombolysis. BMC Neurol 2021; 21:359. [PMID: 34530757 PMCID: PMC8447702 DOI: 10.1186/s12883-021-02375-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/01/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Reports have proven that shorter door-to-needle time (DTN time) indicates better outcomes in AIS patients received intravenous thrombolysis. Efforts have been made by hospitals and centers to minimize DTN time in many ways including introducing a stroke nurse. However, there are few studies to discuss the specific effect of stroke nurse on patients' prognosis. This study aimed to compare consecutive AIS patients before and after the intervention to analyze the effect of stroke nurse on clinical outcome of AIS patients. METHODS In this retrospective study, we observed 1003 patients from November 2016 to December 2020 dividing in two groups, collected and analyzed AIS patients' medical history, clinical assessment information, important timelines, 90 mRS score, etc. Comparative analysis and mediation analysis were also used in this study. RESULTS A total of 418 patients was included in this study, and 199 patients were enrolled in the stroke nurse group and 219 was in the preintervention group. Baseline characteristics of patients showed no significant difference except there seems more patients with previous ischemic stroke history in the group of stroke nurse. (p = 0.008). The median DTN time significantly decreased in the stroke nurse group (25 min versus 36 min, p < 0.001) and multivariate logistic regression analysis showed the 90-day mRS clinical outcome significantly improved in the stroke nurse group (p = 0.001). Mediation analysis indicated the reduction of DTN time plays a partial role on the 90 days mRS score and the stroke nurse has some direct effect on the improvement of clinical outcome (p = 0.006). CONCLUSIONS The introduction of stroke nurse is beneficial to clinical outcome of AIS patients and can be use of reference in other hospitals or centers.
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Affiliation(s)
- Zhao-Han Xu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Qi-Wen Deng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Qian Zhai
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Qing Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Zhen-Jie Wang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Wen-Xia Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Meng-Meng Gu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China.
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China.
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, 210006, Nanjing, China.
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14
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Zhou B, Liu SP, Zhou JS, Song YG. [Analysis of related risk factors in the occurrence of mercury-toxic nephrotic syndrome]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:289-292. [PMID: 33910291 DOI: 10.3760/cma.j.cn121094-20200326-00156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyse the clinical characteristics of mercury-toxic nephrotic syndrome and to find the risk factors. Methods: A total of 126 patients with mercury-toxic admitted to Beijing Chaoyang Hospital from January 2017 to January 2020 were selected as the research objectives. General data such as age, gender, mercury exposure history of all patients and laboratory data such as urine mercury and urine creatinine were collected. The clinical manifestations and pathological types of patients with mercury-toxic nephrotic syndrome were analyzed, and the risk factors of mercury-toxic nephrotic syndrome were found by univariate and multivariate logistic regression analysis. Results: Among the 24 patients with mercury-toxic nephrotic syndrome, 1 was poisoned by respiratory tract, 6 were poisoned by digestive tract, and 17 were poisoned by skin absorption. In addition to the manifestations of kidney injury, some of the patients also showed neurological symptoms such as dizziness, fatigue, hand tremor, and limb pain. The main pathological types were membranous nephropathy (9 cases) and micropathological nephropathy (10 cases) . The results of multivariate logistic regression analysis showed that the digestive tract and skin absorption pathways of mercury were risk factors for mercury-toxic nephrotic syndrome (OR=21.099, 23.840, P<0.05) . Conclusion: The absorption pathway of mercury has an important influence on the pathogenesis of mercury-toxic nephrotic syndrome, especially in patients with mercury poisoning absorbed by the skin and digestive tract, the risk of complicating nephrotic syndrome is higher.
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Affiliation(s)
- B Zhou
- Hefei Third Clinical College of Anhui Medical University (The Third People's Hospital of Hefei) , Hefei 230022, China
| | - S P Liu
- Hefei Third Clinical College of Anhui Medical University (The Third People's Hospital of Hefei) , Hefei 230022, China
| | - J S Zhou
- Hefei Third Clinical College of Anhui Medical University (The Third People's Hospital of Hefei) , Hefei 230022, China
| | - Y G Song
- Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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15
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Yang WY, Li YF, Wang ZR, Yu TX, Xu DJ, Yang N, Niu XY, Cai XL, Zhuo WY, Wu XM, Yan M, Zhou JS, Zhang HW, Liang ZG, Wu WJ, Cheng JH, Huang LA, Zhang YS, Guan Y, Tan ZF, Lu D, He N, Dong DW, Zhu HL, Yang B, Shen QY, Xu AD. Combined therapy of intensive statin plus intravenous rt-PA in acute ischemic stroke: the INSPIRE randomized clinical trial. J Neurol 2021; 268:2560-2569. [PMID: 33555418 DOI: 10.1007/s00415-020-10388-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/18/2020] [Accepted: 12/27/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To investigate the safety and efficacy of intensive statin in the acute phase of ischemic stroke after intravenous thrombolysis therapy. METHODS A total of 310 stroke patients treated with rt-PA were randomly scheduled into the intensive statin group (rosuvastatin 20 mg daily × 14 days) and the control group (rosuvastatin 5 mg daily × 14 days). The primary clinical endpoint was excellent functional outcome (mRS ≤ 1) at 3 months, and the primary safety endpoint was symptomatic intracranial hemorrhage (sICH) in 90 days. RESULTS The intensive statin users did not achieve a favorable outcome in excellent functional outcome (mRS ≤ 1) at 3 months compared with controls (70.3% vs. 66.5%, p = 0.464). Intensive statin also not significantly improved the overall distribution of scores on the modified Rankin scale, as compared with controls (p = 0.82 by the Cochran-Mantel-Haenszel test). The incidence of primary safety endpoint events (sICH) in 90 days did not significantly differ between the intensive statin group and control group (0.6% vs. 1.3%, p > 0.999). CONCLUSION The INSPIRE study indicated that intensive statin therapy may not improve clinical outcomes compared with the low dose of statin therapy in AIS patients undergoing intravenous thrombolysis, and the two groups had similar safety profile. CLINICAL TRIAL REGISTRATION URL: http://www.chictr.org . Unique identifier: ChiCTR-IPR-16008642.
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Affiliation(s)
- Wan-Yong Yang
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Yu-Feng Li
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Zi-Ran Wang
- Department of Neurology and Stroke Center, Linyi People's Hospital, Linyi, 276003, China
| | - Tian-Xia Yu
- Department of Neurology, Yan Tai Shan Hospital, Yantai, 264000, China
| | - Dong-Juan Xu
- Department of Neurology, Dongyang Affiliated Hospital of Wenzhou Medical University, Dongyang, 322100, China
| | - Nan Yang
- Department of Neurology, Traditional Chinese Medicine Hospital of Zhongshan City, Zhongshan, 528400, China
| | - Xiao-Yuan Niu
- Department of Neurology, First Hospital of Shanxi Medical University, Taiyuan, 030000, China
| | - Xue-Li Cai
- Department of Neurology, Lishui Hospital of Zhejiang University, The Central Hospital of Lishui, Lishui, 323000, China
| | - Wen-Yan Zhuo
- Department of Neurology, Zhuhai Hospital Affiliated With Jinan University, Zhuhai, 519000, China
| | - Xue-Mei Wu
- Department of Neurology, General Hospital of TISCO, Taiyuan, 030000, China
| | - Min Yan
- Jingdong Medical District, General Hospital of the Chinese People's Liberation Army, Beijing, 100853, China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210000, China
| | - Hao-Wen Zhang
- Department of Neurology, Laixi City People's Hospital, Qingdao, 266600, China
| | - Zhi-Gang Liang
- Department of Neurology, Yuhuangding Hospital Affiliated to Qingdao University, Yantai, 264000, China
| | - Wen-Jun Wu
- Department of Neurology, Zhongshan City People's Hospital, Zhongshan, 528403, China
| | - Jian-Hua Cheng
- Department of Neurology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Li-An Huang
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Yu-Sheng Zhang
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Ying Guan
- Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Ze-Feng Tan
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Dan Lu
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Niu He
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Da-Wei Dong
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Hui-Li Zhu
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Bing Yang
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Qing-Yu Shen
- Department of Neurology, Sun-Yet Sen Memorial Hospital of Sun-Yet Sen University, Guangzhou, 510120, China.
| | - An-Ding Xu
- Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China. .,Clinical Neuroscience Institute, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.
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16
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Li S, Liu DD, Lu G, Liu Y, Zhou JS, Deng QW, Yan FL. Endovascular Treatment With and Without Intravenous Thrombolysis in Large Vessel Occlusions Stroke: A Systematic Review and Meta-Analysis. Front Neurol 2021; 12:697478. [PMID: 34526956 PMCID: PMC8437100 DOI: 10.3389/fneur.2021.697478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/07/2021] [Indexed: 11/29/2022] Open
Abstract
Background: Previous studies have shown conflicting results about the benefits of pretreatment with intravenous thrombolysis before endovascular treatment (EVT) in patients with acute ischemic stroke (AIS) with large vessel occlusions (LVOs). This study aimed to investigate the clinical efficacy and safety of EVT alone vs. bridging therapy (BT) in patients with AIS with LVOs. Methods: A systematic review with meta-analysis of all available studies comparing clinical outcomes between BT and EVT alone was conducted by searching the National Center for Biotechnology Information/National Library of Medicine PubMed and Web of Science databases for relevant literature from database inception to October 20, 2020. Results: A total of 93 studies enrolling 45,190 patients were included in the present analysis. In both unadjusted and adjusted analyses, BT was associated with a higher likelihood of 90-day good outcome (crude odds ratio [cOR] 1.361, 95% confidence interval [CI] 1.234-1.502 and adjusted OR [aOR] 1.369, 95% CI 1.217-1.540) and successful reperfusion (cOR 1.271, 95% CI 1.149-1.406 and aOR 1.267, 95% CI 1.095-1.465) and lower odds of 90-day mortality (cOR 0.619, 95% CI 0.560-0.684 and aOR 0.718, 95% CI 0.594-0.868) than EVT alone. The two groups did not differ in the occurrence of symptomatic intracranial hemorrhage (sICH) (cOR 1.062, 95% CI 0.915-1.232 and aOR 1.20, 95% CI 0.95-1.47), 24-h early recovery (cOR 1.306, 95% CI 0.906-1.881 and aOR 1.46, 95% CI 0.46-2.19), and number of thrombectomy device passes ≤ 2 (aOR 1.466, 95% CI 0.983-2.185) after sensitivity analyses and adjustment for publication bias. Conclusions: BT provides more benefits than EVT alone in terms of clinical functional outcomes without compromising safety in AIS patients with LVOs.
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Affiliation(s)
- Shuo Li
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Dan-Dan Liu
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Guo Lu
- Department of Neurology, Dezhou People's Hospital, Dezhou, China
| | - Yun Liu
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Jun-Shan Zhou
| | - Qi-Wen Deng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Qi-Wen Deng
| | - Fu-Ling Yan
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
- Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, China
- *Correspondence: Fu-Ling Yan
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17
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Li X, Pan X, Jiang C, Wu M, Liu Y, Wang F, Zheng X, Yang J, Sun C, Zhu Y, Zhou J, Wang S, Zhao Z, Zou J. Predicting 6-Month Unfavorable Outcome of Acute Ischemic Stroke Using Machine Learning. Front Neurol 2020; 11:539509. [PMID: 33329298 PMCID: PMC7710984 DOI: 10.3389/fneur.2020.539509] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 10/16/2020] [Indexed: 12/23/2022] Open
Abstract
Background and Purpose: Accurate prediction of functional outcome after stroke would provide evidence for reasonable post-stroke management. This study aimed to develop a machine learning-based prediction model for 6-month unfavorable functional outcome in Chinese acute ischemic stroke (AIS) patient. Methods: We collected AIS patients at National Advanced Stroke Center of Nanjing First Hospital (China) between September 2016 and March 2019. The unfavorable outcome was defined as modified Rankin Scale score (mRS) 3-6 at 6-month. We developed five machine-learning models (logistic regression, support vector machine, random forest classifier, extreme gradient boosting, and fully-connected deep neural network) and assessed the discriminative performance by the area under the receiver-operating characteristic curve. We also compared them to the Houston Intra-arterial Recanalization Therapy (HIAT) score, the Totaled Health Risks in Vascular Events (THRIVE) score, and the NADE nomogram. Results: A total of 1,735 patients were included into this study, and 541 (31.2%) of them had unfavorable outcomes. Incorporating age, National Institutes of Health Stroke Scale score at admission, premorbid mRS, fasting blood glucose, and creatinine, there were similar predictive performance between our machine-learning models, while they are significantly better than HIAT score, THRIVE score, and NADE nomogram. Conclusions: Compared with the HIAT score, the THRIVE score, and the NADE nomogram, the RFC model can improve the prediction of 6-month outcome in Chinese AIS patients.
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Affiliation(s)
- Xiang Li
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - XiDing Pan
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - ChunLian Jiang
- Department of Pathology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - MingRu Wu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - YuKai Liu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - FuSang Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - XiaoHan Zheng
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jie Yang
- Department of Neurology, the First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Chao Sun
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - YuBing Zhu
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - JunShan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - ShiHao Wang
- School of Public Health, Bengbu Medical College, Bengbu, China
| | - Zheng Zhao
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - JianJun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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18
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Yang YQ, Sun Q, Li CM, Chen HF, Zhao F, Huang JH, Zhou JS, Li XM, Lan B. Biological Characteristics and Genetic Diversity of Phomopsis asparagi, Causal Agent of Asparagus Stem Blight. Plant Dis 2020; 104:2898-2904. [PMID: 33006915 DOI: 10.1094/pdis-07-19-1484-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Asparagus stem blight is a regional disease. In the present study, we compared strains of Phomopsis asparagi from six different provinces to determine their biological characteristics and genetic diversity, differences in the pycnidium and conidium production, pathogenicity, and growth rate. Considerable differences were established in the pycnidium and conidium production among the P. asparagi strains from the six studied provinces. The largest pycnidium and conidium production had the strains from Fujian, followed by those from Hainan. The virulence of P. asparagi strains was significantly different but without a correlation with the geographical source of the strain. FJ2 had the highest virulence, followed by HN2, SD4, and SD5, whereas SD5 had the lowest virulence. The colony diameter and dry weight of the strains of asparagus stem blight fungus from the six provinces were substantially different. The colonies of HN1-5 had the largest diameters, whereas those of XT1-5, LT1-3, FJ1-5, and SX6 had smaller diameters. Four primers with good repeatability and strong specificity were selected from 100 intersimple sequence repeat (ISSR) primers. ISSR-PCR amplification was performed on 36 strains of asparagus stem blight fungus, and a large number of repeatable DNA fingerprints were obtained. Most of the amplified fragments were within 300 to 500 bp. In all, 69 total points, 64 multiple points, and 92.75% polymorphism points were established. The number of ISSR gene sites detected by four primers ranged from 14 to 20, with an average of 16 multiple sites. The copolymerization was divided into three groups: XT1-5, LT1-3, and FJ1-5, which were clustered into the first group; SD1-6, SX1-6, and HB1-6, clustered into the second group; and HN1-5 in the third group. The results of the cluster analysis revealed that the strains of the neighboring provinces had a nearer phylogenetic relationship than that between distant ones. Therefore, the system evolution of P. asparagi is related to the geographical distribution of its strains.
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Affiliation(s)
- Y Q Yang
- Institute of Plant Protection, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
| | - Q Sun
- Huangdao Customs House, Qingdao 266555, China
| | - C M Li
- Jiangsu Lixiahe Institute of Agriculture Science, Yangzhou 225007, China
| | - H F Chen
- Institute of Plant Protection, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
| | - F Zhao
- Huangdao Customs House, Qingdao 266555, China
| | - J H Huang
- Institute of Plant Protection, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
| | - J S Zhou
- Institute of Vegetables and Flowers, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
| | - X M Li
- Institute of Plant Protection, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
| | - B Lan
- Institute of Plant Protection, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
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19
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Li S, Lu G, Wang D, He JL, Zuo L, Wang H, Gu ZT, Zhou JS, Yan FL, Deng QW. MicroRNA-4443 regulates monocyte activation by targeting tumor necrosis factor receptor associated factor 4 in stroke-induced immunosuppression. Eur J Neurol 2020; 27:1625-1637. [PMID: 32337817 DOI: 10.1111/ene.14282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND PURPOSE MicroRNAs (miRNAs) have been demonstrated to play crucial roles in the early stage of acute ischaemic stroke (AIS). The purpose of this study was to investigate the expression patterns of miRNAs in peripheral blood mononuclear cells (PBMCs) from AIS patients and further explore related molecular mechanisms in stroke-induced immunodeficiency syndrome (SIDS). METHODS The miRNA expression patterns of PBMCs were detected by miRNA microarray and validated by quantitative real-time polymerase chain reaction (qRT-PCR) in AIS patients and healthy controls. Bioinformatics methods and luciferase reporter assays were used to detect the downstream target genes. Following stimulation with lipopolysaccharide and interleukin-4, the expression of miR-4443, tumor necrosis factor receptor associated factor 4 (TRAF4) and the nuclear factor kappa B (NF-κB) pathway were evaluated. Furthermore, transfection with miR-4443 mimic or inhibitor in the monocytes was carried out to gain insight into the mechanisms in SIDS. RESULTS Interleukin-10 in AIS patients was significantly higher than that of healthy controls. The miRNA microarray analysis and qRTPCR validation showed that only miR-4443 was upregulated expressed in PBMCs from AIS patients, especially in monocytes. miR-4443 was shown to directly interact with the 3' untranslated regions of TRAF4, resulting in suppression of TRAF4 protein expression. Furthermore, the expression of miR-4443 and TRAF4 was regulated by stimulation with lipopolysaccharide or interleukin-4. Additionally, overexpression of miR-4443 suppressed the TRAF4/Iκα/NF-κB signaling pathway to activate the expression of anti-inflammatory cytokines in monocytes. CONCLUSIONS The increased expression of miR-4443 induced monocyte dysfunction by targeting TRAF4, which may function as a crucial mediator in SIDS.
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Affiliation(s)
- S Li
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - G Lu
- Department of Neurology, Dezhou People's Hospital, Dezhou, China
| | - D Wang
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - J L He
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - L Zuo
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - H Wang
- Department of Respiratory, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Z T Gu
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - J S Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - F L Yan
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Q W Deng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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20
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Guo HJ, Wang J, Li QG, Zhong SL, Zhang SM, Zhou JS, Wang XP. Factors Influencing the Initiation Time of Forensic Psychiatric Assessment of Criminal Cases in Hunan Province. Fa Yi Xue Za Zhi 2019; 35:586-591. [PMID: 31833294 DOI: 10.12116/j.issn.1004-5619.2019.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Indexed: 11/30/2022]
Abstract
Abstract Objective To discuss the related factors influencing the initiation time of forensic psychiatric assessment by analysis of the initiation time of forensic psychiatric assessment of criminal cases in Hunan Province. Methods Related data in assessment files of criminal cases accepted by 8 forensic psychiatric assessment institutions in Hunan Province from January 1, 2011 to December 31, 2016 were extracted. The Logistic regression analysis was used to explore the factors influencing the initiation time of forensic psychiatric assessment. After using property score matching (PSM) to control the influence of confounding factors, the efficiency of public security organs to initiate assessments of suspects with (without) mental disorders and with (without) responsibilities were compared. Results A total of 4 346 cases were included. The Logistic regression analysis suggested that the factors independently related to the initiation time of assessment include: cause of assessment, nationality of the assessed, history of diagnosis and treatment of mental illnesses, history of crimes, history of drug abuse, and status of alcohol consumption before the crime (all P<0.05). The initiation time of assessment of suspects diagnosed with mental disorder was shorter than those with none (P<0.05); the initiation time of assessment of suspects without criminal responsibility was shorter than those with responsibility (P<0.05). After using PSM to control confounding factors, the differences above still existed. Conclusion The cause of assessment, nationality of the assessed, history of diagnosis and treatment of mental illnesses, history of crimes, history of drug abuse, and status of alcohol consumption before the crime are factors that influence the efficiency of public security organs to initiate forensic psychiatric assessments. Under the current assessment initiation mode, forensic psychiatric assessment of suspects who have mental disorders, especially those with no responsibility may be given priority to initiate.
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Affiliation(s)
- H J Guo
- Hunan Key Laboratory of Psychiatry and Mental Health, China National Clinical Research Center on Mental Disorders, Mental Health Institute of Central South University, Department of Psychiatry of the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - J Wang
- Hunan Key Laboratory of Psychiatry and Mental Health, China National Clinical Research Center on Mental Disorders, Mental Health Institute of Central South University, Department of Psychiatry of the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Q G Li
- Hunan Key Laboratory of Psychiatry and Mental Health, China National Clinical Research Center on Mental Disorders, Mental Health Institute of Central South University, Department of Psychiatry of the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - S L Zhong
- Hunan Key Laboratory of Psychiatry and Mental Health, China National Clinical Research Center on Mental Disorders, Mental Health Institute of Central South University, Department of Psychiatry of the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - S M Zhang
- Hunan Key Laboratory of Psychiatry and Mental Health, China National Clinical Research Center on Mental Disorders, Mental Health Institute of Central South University, Department of Psychiatry of the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - J S Zhou
- Hunan Key Laboratory of Psychiatry and Mental Health, China National Clinical Research Center on Mental Disorders, Mental Health Institute of Central South University, Department of Psychiatry of the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - X P Wang
- Hunan Key Laboratory of Psychiatry and Mental Health, China National Clinical Research Center on Mental Disorders, Mental Health Institute of Central South University, Department of Psychiatry of the Second Xiangya Hospital, Central South University, Changsha 410011, China
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Song B, Liu Y, Nyame L, Chen X, Jiang T, Wang W, Sun C, Tang D, Chen C, Ibrahim M, Yang J, Zhou J, Zou J. A COACHS Nomogram to Predict the Probability of Three-Month Unfavorable Outcome after Acute Ischemic Stroke in Chinese Patients. Cerebrovasc Dis 2019; 47:80-87. [PMID: 30897564 DOI: 10.1159/000497243] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 01/22/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Accurate prognostication of unfavorable outcome made at the early onset of stroke is important to both the clinician and the patient management. This study was aimed to develop a nomogram based on the integration of parameters to predict the probability of 3-month unfavorable functional outcome in Chinese acute ischemic stroke patients. METHODS We retrospectively collected patients who underwent acute ischemic stroke at Stroke Center of the Nanjing First Hospital (China) between May 2013 and May 2018. After exclusion, the study population includes 1,025 patients for nomogram development. The main outcome measure was 3-month unfavorable outcome (modified Rankin Scale > 2). Multivariable logistic regression analysis was used to develop the predicting model, and stepwise logistic regression with the Akaike information criterion was utilized to find best-fit nomogram model. We incorporated the creatinine, fast blood glucose, age, previous cerebral hemorrhage, previous valvular heart disease, and NHISS score (COACHS), and these factors were presented with a nomogram. We assessed the discriminative performance by using the area under curve (AUC) of receiver-operating characteristic (ROC) and calibration of risk prediction model by using the Hosmer-Lemeshow test. RESULTS Multivariate analysis of the 1,025 patients for logistic regression helped identify the independent factors as National Institutes of Health Stroke Scale score on admission, age, previous valvular heart disease, fasting blood glucose, creatinine, and previous cerebral hemorrhage, which were included in the COACHS nomogram. The AUC-ROC of nomogram was 0.799. Calibration was good (p = 0.1376 for the Hosmer-Lemeshow test). CONCLUSIONS The COACHS nomogram may be used to predict unfavorable outcome at 3 months after acute ischemic stroke in Chinese population. It may be also a reliable tool that is effective in its clinical utilization to risk-stratify acute stroke patients.
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Affiliation(s)
- BaiLi Song
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - YuKai Liu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Linda Nyame
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - XiangLiang Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Wei Wang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Chao Sun
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Dan Tang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Chen Chen
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Mako Ibrahim
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jie Yang
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - JunShan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China,
| | - JianJun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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22
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Song B, Chen X, Tang D, Ibrahim M, Liu Y, Nyame L, Jiang T, Wang W, Li X, Sun C, Zhao Z, Yang J, Zhou J, Zou J. External Validation of START nomogram to predict 3-Month unfavorable outcome in Chinese acute stroke patients. J Stroke Cerebrovasc Dis 2019; 28:1618-1622. [PMID: 30898445 DOI: 10.1016/j.jstrokecerebrovasdis.2019.02.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/24/2019] [Accepted: 02/23/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Recently, the NIHSS STroke Scale score, Age, pre-stroke mRS score, onset-to-treatment Time (START nomogram) predicts 3-month functional outcome after intravenous thrombolysis in ischemic stroke patients. However, this model has not yet been an external validation. We aim to validate the performance of START nomogram. METHODS Data were derived from the stroke center of the Nanjing First Hospital (China). Patients who lacked the necessary data to calculate the nomogram and missed 3-month modified Ranking scale scores were excluded. Modified Rankin Scale score more than 2 at 3-month was assessed as an unfavorable outcome. We used areas under the receiver operator characteristic curves (AUC-ROC) to quantify the prognostic value. Calibration was assessed by calibration plots and Hosmer-Lemeshow (HL) goodness of fit test. RESULT The final cohort included 306 eligible patients. For 3-month unfavorable outcome, the AUC-ROC of the START nomogram was .766 (95%CI: .7013-.8304, P < .0001), suggesting good discrimination in the START nomogram. It also showed good calibration (HL goodness of fit test P = .1261) in the external validation sample. CONCLUSION The START nomogram with good predictive performance is a reliable and simple clinical instrument to predict unfavorable outcome after acute stroke.
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Affiliation(s)
- BaiLi Song
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China; School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - XiangLiang Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Dan Tang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Mako Ibrahim
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China; School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - YuKai Liu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Linda Nyame
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China; School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Wei Wang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiang Li
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China; School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Chao Sun
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China; School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Zheng Zhao
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jie Yang
- Department of Neurology, the First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - JunShan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - JianJun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
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23
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Geng C, Lin Y, Tang Q, Tang Y, Wang X, Zhou JS, Yang J, Zheng D, Zhang YD. Sex differences in clinical characteristics and 1-year outcomes of young ischemic stroke patients in East China. Ther Clin Risk Manag 2018; 15:33-38. [PMID: 30588003 PMCID: PMC6305165 DOI: 10.2147/tcrm.s182232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background Data concerning sex differences in clinical characteristics and outcomes of young ischemic stroke (IS) patients in Eastern China are scarce. Understanding sex differences in clinical characteristics and long-term outcomes of young IS patients might provide valuable evidence for designing preventative measures and therapeutic interventions. Methods The study included 228 acute IS patients aged up to 50 years recruited in the prospective Nanjing First Hospital Stroke Registry over a 5-year period. Univariable and multivariable logistic regression analyses were performed to determine whether there were sex differences in clinical characteristics and outcomes of young IS patients. Results Admission systolic blood pressure (130.12±24.3 vs 137.96±24.3 mmHg, P=0.005) of women was significantly lower than that of men. Logistic regression showed that young women had poorer outcomes defined as having modified Rankin Scale score of 3–6 at 12 months after the adjustment for history of prior stroke, NIHSS score, and complication of pneumonia (adjusted OR: 3.45; 95% CI: 1.43–8.32). Conclusion Our study indicates that there may be significant differences in clinical characteristics between young women and men with acute IS in East China. Young women were more likely to be dead or dependent at 12 months after stroke onset. More attention should be paid to young women’s IS prevention and management in East China.
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Affiliation(s)
- Cong Geng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China.,Department of Emergency, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Yapeng Lin
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Xindu, Chengdu 610500, China,
| | - Qin Tang
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Xindu, Chengdu 610500, China,
| | - Yifang Tang
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Xindu, Chengdu 610500, China,
| | - Xiaoqing Wang
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Xindu, Chengdu 610500, China,
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jie Yang
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Xindu, Chengdu 610500, China,
| | - Danni Zheng
- Centre for Big Data Research in Health, Faculty of Medicine, University of New South Wales, Sydney 2033, NSW, Australia.,The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney 2033, NSW, Australia
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
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Jiang T, Zhang YD, Gao Q, Ou Z, Gong PY, Shi JQ, Wu L, Zhou JS. TREM2 Ameliorates Neuronal Tau Pathology Through Suppression of Microglial Inflammatory Response. Inflammation 2018; 41:811-823. [PMID: 29362997 DOI: 10.1007/s10753-018-0735-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
As a recently identified susceptibility gene for Alzheimer's disease (AD), triggering receptor expressed on myeloid cells 2 (TREM2) encodes an immune receptor that is uniquely expressed on microglia, functioning as a modulator of microglial functions including phagocytosis and inflammatory response. Several lines of evidence suggest that TREM2 is upregulated and positively correlates with tau pathology in the brains of AD patients. Meanwhile, our recent study showed that knockdown of TREM2 markedly exacerbated neuronal tau hyperphosphorylation in the brains of P301S-tau transgenic mice, implying that TREM2 might exert a protective role against tau pathology under AD context. However, the precise mechanisms underlying this observation remain largely unclear. In this study, by employing a microglial-neuronal co-culture model, we showed that microglial inflammatory response induced by lipopolysaccharide led to tau hyperphosphorylation in neurons via activation of a major tau kinase glycogen synthase kinase 3β, confirming the pathogenic effects of activated microglia on the progression of tau pathology. More importantly, by manipulating TREM2 levels in microglia with a lentiviral-mediated strategy, we demonstrated that TREM2 ameliorated the pathological effects of activated microglia on neuronal tau hyperphosphorylation via suppression of microglial inflammatory response. Taken together, these findings uncover the underlying mechanisms by which TREM2 protects against tau pathology and highlight TREM2 as a potential therapeutic target for AD.
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Affiliation(s)
- Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China.
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Qing Gao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Zhou Ou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Peng-Yu Gong
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Jian-Quan Shi
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Liang Wu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No. 68, Changle Road, Nanjing, Jiangsu, People's Republic of China.
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Tao MX, Xue X, Gao L, Lu JL, Zhou JS, Jiang T, Zhang YD. Involvement of angiotensin-(1-7) in the neuroprotection of captopril against focal cerebral ischemia. Neurosci Lett 2018; 687:16-21. [PMID: 30219484 DOI: 10.1016/j.neulet.2018.09.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/04/2018] [Accepted: 09/13/2018] [Indexed: 11/30/2022]
Abstract
Accumulating evidence suggests that brain angiotensin-converting enzyme (ACE)/angiotensin II/angiotensin II type I receptor axis is activated and thus contributes to the neuronal injury during ischemic stroke. Conversely, inhibition of this axis using centrally active ACE inhibitor captopril was proven neuroprotective in rodents with focal cerebral ischemia. Interestingly, captopril was able to increase angiotensin-(1-7) [Ang-(1-7)] levels in the peripheral organs. As the main component of the alternative renin-angiotensin system axis in the brain, Ang-(1-7) was revealed to protect against focal cerebral ischemia via a MAS1 receptor-dependent manner. Based on this evidence, we hypothesized that Ang-(1-7) might contribute to the neuroprotection of captopril during ischemic stroke. In this study, we evaluated this hypothesis using a rat model of focal cerebral ischemia. We revealed that brain ACE2 activity and Ang-(1-7) levels were significantly elevated following captopril treatment in rats with focal cerebral ischemia. More importantly, we showed that the neuroprotection provided by captopril was partially reversed by A-779, an antagonist for Ang-(1-7) receptor MAS1, indicating that Ang-(1-7) was involved in the neuroprotection of captopril. These findings have uncovered new mechanisms by which captopril protects against focal cerebral ischemia and further suggest that captopril may have practical clinical use for stroke prevention and treatment in addition to its antihypertensive effect.
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Affiliation(s)
- Meng-Xing Tao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Xiao Xue
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Li Gao
- Department of Neurology, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, PR China
| | - Jun-Ling Lu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China.
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China.
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26
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Gao Q, Ou Z, Jiang T, Tian YY, Zhou JS, Wu L, Shi JQ, Zhang YD. Azilsartan ameliorates apoptosis of dopaminergic neurons and rescues characteristic parkinsonian behaviors in a rat model of Parkinson's disease. Oncotarget 2018; 8:24099-24109. [PMID: 28445961 PMCID: PMC5421830 DOI: 10.18632/oncotarget.15732] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 02/08/2017] [Indexed: 01/12/2023] Open
Abstract
Loss of dopaminergic neurons within the substantia nigra (SN) is a pathological hallmark of Parkinsons disease (PD), which leads to the onset of motor symptoms. Previously, our in vitro studies revealed that Angiotensin II (Ang II) induced apoptosis of dopaminergic neurons through its type 1 receptor (AT1R), but these findings needed to be confirmed via animal experiments. Here, using a rotenone-induced rat model of PD, we observed an overactivation of Ang II/AT1R axis in the SN, since Ang II level and AT1R expression were markedly increased. Furthermore, we provided in vivo evidence that Ang II directly elicited apoptosis of dopaminergic neurons via activation of AT1R in the SN of rats. More importantly, we showed for the first time that oral administration of azilsartan, a newly developed AT1R blocker approved by the U.S. Food and Drug Administration for hypertension treatment, rescued the apoptosis of dopaminergic neurons and relieved the characteristic parkinsonian symptoms in PD rats. These results support the application of AT1R blockers in PD therapy, and strengthen the notion that many therapeutic agents may possess pleiotropic action in addition to their main applications.
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Affiliation(s)
- Qing Gao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Zhou Ou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - You-Yong Tian
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Liang Wu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Jian-Quan Shi
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, PR China
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Wu XL, Ma DM, Zhang W, Zhou JS, Huo YW, Lu M, Tang FR. Cx36 in the mouse hippocampus during and after pilocarpine-induced status epilepticus. Epilepsy Res 2018; 141:64-72. [PMID: 29476948 DOI: 10.1016/j.eplepsyres.2018.02.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/24/2018] [Accepted: 02/13/2018] [Indexed: 12/24/2022]
Abstract
Gap junctions play an important role in the synchronization activity of coupled cells. Hippocampal inhibitory interneurons are involved in epileptogenesis and seizure activity, and express gap junction protein connexin (Cx) 36. Cx36 is also localized in the axons (mossy fibers) of granule cells in the dentate gyrus. While it has been documented that Cx36 is involved in epileptogenesis, there are still controversies regarding the expression levels of Cx36 at different developmental stages of human and animal models of epileptogenesis. In this study, the expression of Cx36 was investigated in the mouse hippocampus at 1 h, 4 h during pilocarpine-induced status epilepticus (PISE) and 1 week, 2 months after PISE. We found that Cx36 was down-regulated in neurons at different time points during and after PISE, whereas it was increased significantly in the stratum lucidum of CA3 area at 2 months after PISE. Double immunofluorescence indicated that Cx36 was localized in parvalbumin (PV) immunopositive interneuron in CA1 area and in mossy fibers and their terminals in the stratum lucidum of CA3 area. It suggests that decreased expression of Cx36 in interneurons may be related to less effective inhibitory control of excitatory activity of hippocampal principal neurons. However, the increased Cx36 immunopositive product in mossy fibers at the chronic stage after PISE may enhance the contacts between granule cells in the dentate gyrus and pyramidal neurons in CA3 area. The two different changes of Cx36 may be implicated in the epileptogenesis.
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Affiliation(s)
- X L Wu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - D M Ma
- Department of Thoracic Surgery, The Ninth Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, China
| | - W Zhang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - J S Zhou
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - Y W Huo
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - M Lu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi 710061, China
| | - F R Tang
- Radiation Physiology Laboratory, Singapore Nuclear Research and Safety Initiative (SNRSI), National University of Singapore, 1 CREATE Way #04-01, CREATE Tower 138602, Singapore.
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28
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Ou Z, Tao MX, Gao Q, Zhang XL, Yang Y, Zhou JS, Zhang YD. Up-regulation of angiotensin-converting enzyme in response to acute ischemic stroke via ERK/NF-κB pathway in spontaneously hypertensive rats. Oncotarget 2017; 8:97041-97051. [PMID: 29228591 PMCID: PMC5722543 DOI: 10.18632/oncotarget.21156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 09/08/2017] [Indexed: 12/02/2022] Open
Abstract
Cerebral ischemic stroke is usually caused by a temporary or permanent decrease in blood supply to the brain. Despite general progress in diagnosis and treatment, the prognosis of stroke is still unsatisfactory, and more detailed potential mechanisms are needed to investigate underlying the pathological process. Here, we showed that serum angiotensin-converting enzyme (ACE) concentration was positively correlated with infarct volume after acute ischemic stroke (AIS). Moreover, using a permanent middle cerebral artery occlusion rat model, we indicated for the first time that increased ACE expression in response to AIS was regulated by the ERK/NF-κB pathway in peri-infarct regions. More importantly, we disclosed that angiotensin II type 1 receptors were implicated in up-regulation of ACE expression in peri-infarct regions. These findings offer insight into ACE expression and activity in response to stroke, and further our understanding of ACE mechanisms.
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Affiliation(s)
- Zhou Ou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Meng-Xing Tao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Qing Gao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Xue-Ling Zhang
- Department of Neurology, Suqian City People's Hospital, Suqian, People's Republic of China
| | - Yang Yang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People's Republic of China
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Jiang L, Su HB, Zhang YD, Zhou JS, Geng W, Chen H, Xu Q, Yin X, Chen YC. Collateral vessels on magnetic resonance angiography in endovascular-treated acute ischemic stroke patients associated with clinical outcomes. Oncotarget 2017; 8:81529-81537. [PMID: 29113412 PMCID: PMC5655307 DOI: 10.18632/oncotarget.21081] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 09/03/2017] [Indexed: 12/03/2022] Open
Abstract
Purpose Collateral vessels were considered to be related with outcome in endovascular-treated acute ischemic stroke patients. This study aimed to evaluate whether the collateral vessels on magnetic resonance angiography (MRA) could predict the clinical outcome. Materials and Methods Acute stroke patients with internal carotid artery or middle cerebral artery occlusion within 6 hours of symptom onset were included. All patients underwent MRI and received endovascular treatment. The collateral circulations at the Sylvian fissure and the leptomeningeal convexity were evaluated. The preoperative and postoperative infarct volume was measured. The clinical outcome was evaluated by mRS score at 3 months after stroke. Results Of 55 patients, Cases with insufficient collateral circulation at the Sylvian fissure and leptomeningeal convexity showed that the NIHSS score at arrival and preoperative infarct volume were significantly lower in mRS score of 0–2 (both P < 0.05) than mRS score of 3–6. Multivariate testing revealed age and collateral status at the leptomeningeal convexity were independent of the clinical outcome at 3 months after stroke (odds ratio (95% confidence interval): 1.094 (1.025–1.168); 9.542 (1.812–50.245) respectively). The change of infarct volume in the group with mRS score of 0–2 was smaller than that with mRS score of 3–6. While multivariate logistic models showed that postoperative infarct volume was non-significant in predicting the clinical outcome after stroke. Conclusions The extent of collateral circulation at the leptomeningeal convexity may be useful for predicting the functional recovery while the relationship between postoperative infarct volume and clinical outcome still requires for further study.
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Affiliation(s)
- Liang Jiang
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Hao-Bo Su
- Department of Vascular and Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Wen Geng
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Huiyou Chen
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Quan Xu
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xindao Yin
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yu-Chen Chen
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Jiang T, Tan L, Gao Q, Lu H, Zhu XC, Zhou JS, Zhang YD. Plasma Angiotensin-(1-7) is a Potential Biomarker for Alzheimer's Disease. Curr Neurovasc Res 2016; 13:96-9. [PMID: 26907614 DOI: 10.2174/1567202613666160224124739] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 02/06/2016] [Accepted: 02/10/2016] [Indexed: 11/22/2022]
Abstract
Brain angiotensin-(1-7) (Ang-(1-7)) concentration has been shown to be reduced and inversely correlated with tau pathology in a mouse model of Alzheimer's disease (AD). In this study, to determine whether the concentration of Ang-(1-7) and the activity of its converting enzyme angiotensin-converting enzyme 2 were altered in plasma under AD context, the plasma samples from 110 AD patients and 128 age- and gender-matched controls were screened. In AD patients, the plasma concentration of Ang-(1-7) was significantly reduced (15.63±4.35pg/mL vs. 19.58±3.22pg/mL, P<0.001) and positively correlated with cognitive functions (R=0.66, P<0.001). Meanwhile, receiver-operating characteristic analysis showed that the Ang-(1-7) concentration in plasma could distinguish AD patients from controls with the sensitivity and specificity of 69.1% and 74.2%, respectively, when the optimal cut-off value (18.2 pg/mL) was chosen. These findings indicate that plasma Ang-(1-7) may represent a potential biomarker for AD diagnosis, and further suggest an involvement of this heptapeptide in the pathogenesis of this disease.
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Affiliation(s)
- Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, China.
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Wang BR, Ou Z, Jiang T, Zhang YD, Zhao HD, Tian YY, Shi JQ, Zhou JS. Independent Correlation of Serum Homocysteine with Cerebral Microbleeds in Patients with Acute Ischemic Stroke due to Large-Artery Atherosclerosis. J Stroke Cerebrovasc Dis 2016; 25:2746-2751. [DOI: 10.1016/j.jstrokecerebrovasdis.2016.07.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/27/2016] [Accepted: 07/18/2016] [Indexed: 11/24/2022] Open
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Jiang T, Zhang YD, Gao Q, Zhou JS, Zhu XC, Lu H, Shi JQ, Tan L, Chen Q, Yu JT. TREM1 facilitates microglial phagocytosis of amyloid beta. Acta Neuropathol 2016; 132:667-683. [PMID: 27670763 DOI: 10.1007/s00401-016-1622-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 09/21/2016] [Accepted: 09/21/2016] [Indexed: 02/06/2023]
Abstract
As the most common type of neurodegenerative disease, Alzheimer's disease (AD) is characterized by the accumulation of amyloid-β peptide (Aβ) within the brain. Triggering receptor expressed on myeloid cells (TREM) 1 is an immune receptor expressed by mononuclear phagocytes including monocytes and microglia, coupling with TYRO protein tyrosine kinase binding protein to regulate immune reactions. Emerging evidence indicates that rs6910730G, an intronic variant of TREM1, is associated with an increased Aβ neuropathology in the brains of elderly subjects, but the underlying mechanisms remain unclear. Here, using two independent cohorts of healthy individuals, we provided evidence that rs6910730G reduced the ability of human monocytes for Aβ phagocytosis, and this reduction was likely attributed to a decreased monocytic TREM1 expression. By knockdown and overexpression of Trem1 in mouse primary microglia, we showed that TREM1 facilitated microglial phagocytosis of Aβ. In support of this finding, knockdown of Trem1 in the brains of APP/PSEN1 mice increased Aβ1-42 levels and total amyloid burden, whereas selective overexpression of Trem1 on microglia or activation of Trem1 signaling by an agonistic antibody ameliorated Aβ neuropathology and rescued AD-related spatial cognitive impairments. Altogether, these findings uncover the role of TREM1 in microglial Aβ clearance, and establish TREM1 as a potential therapeutic target for AD.
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Affiliation(s)
- Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu, People's Republic of China.
| | - Qing Gao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Xi-Chen Zhu
- Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, No.5, Donghai Middle Road, Qingdao, Shandong, People's Republic of China
| | - Huan Lu
- Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, No.5, Donghai Middle Road, Qingdao, Shandong, People's Republic of China
| | - Jian-Quan Shi
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, No.68, Changle Road, Nanjing, Jiangsu, People's Republic of China
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, No.5, Donghai Middle Road, Qingdao, Shandong, People's Republic of China.
| | - Qi Chen
- Department of Pathophysiology, Nanjing Medical University, Nanjing, People's Republic of China
| | - Jin-Tai Yu
- Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, No.5, Donghai Middle Road, Qingdao, Shandong, People's Republic of China.
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Ou Z, Jiang T, Gao Q, Tian YY, Zhou JS, Wu L, Shi JQ, Zhang YD. Mitochondrial-dependent mechanisms are involved in angiotensin II-induced apoptosis in dopaminergic neurons. J Renin Angiotensin Aldosterone Syst 2016; 17:17/4/1470320316672349. [PMID: 27733642 PMCID: PMC5843909 DOI: 10.1177/1470320316672349] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 08/29/2016] [Indexed: 01/08/2023] Open
Abstract
Introduction: We recently demonstrated that angiotensin II (Ang II) was involved in the etiology of Parkinson’s disease (PD) via induction of apoptosis of dopaminergic neurons, but the mechanisms are not completely elucidated. Here, we asked whether mitochondrial-dependent mechanisms contributed to the Ang II-induced dopaminergic neuronal apoptosis. Materials and methods: CATH.a cells were incubated with Ang II in combination with mitochondrial permeability transition pore (mPTP) inhibitors or angiotensin receptor antagonists, and apoptosis rate, caspase-3 activity, cytochrome c levels, and mPTP opening were assessed. Results: We showed that Ang II triggered apoptosis via a mitochondrial-dependent pathway, as elevated cytochrome c levels were observed in the cytosol. By employing cyclosporin A and sanglifehrin A, two specific mPTP inhibitors, we revealed that cytochrome c release from mitochondria into cytoplasm was ascribed to mPTP opening. Meanwhile, the aforementioned effects could be abrogated by an AT1 receptor antagonist losartan rather than an AT2 receptor antagonist PD123319. Conclusion: This study demonstrates that Ang II triggers mitochondrial-dependent apoptosis via facilitating mPTP opening through an AT1 receptor-mediated fashion in dopaminergic neurons. These findings give insight into the effect of Ang II in the etiology of PD, and reinforce the application of AT1 receptor antagonists for PD treatment.
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Affiliation(s)
- Zhou Ou
- Department of Neurology, Nanjing First Hospital, PR China
| | - Teng Jiang
- Department of Neurology, Nanjing First Hospital, PR China
| | - Qing Gao
- Department of Neurology, Nanjing First Hospital, PR China
| | - You-Yong Tian
- Department of Neurology, Nanjing First Hospital, PR China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, PR China
| | - Liang Wu
- Department of Neurology, Nanjing First Hospital, PR China
| | - Jian-Quan Shi
- Department of Neurology, Nanjing First Hospital, PR China
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Jiang T, Hou JK, Gao Q, Yu JT, Zhou JS, Zhao HD, Zhang YD. TREM2 p.H157Y Variant and the Risk of Alzheimer's Disease: A Meta-Analysis Involving 14,510 Subjects. Curr Neurovasc Res 2016; 13:318-320. [DOI: 10.2174/1567202613666160808095530] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 07/11/2016] [Accepted: 07/12/2016] [Indexed: 11/22/2022]
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Jiang T, Zhang YD, Chen Q, Gao Q, Zhu XC, Zhou JS, Shi JQ, Lu H, Tan L, Yu JT. TREM2 modifies microglial phenotype and provides neuroprotection in P301S tau transgenic mice. Neuropharmacology 2016; 105:196-206. [DOI: 10.1016/j.neuropharm.2016.01.028] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 01/01/2016] [Accepted: 01/20/2016] [Indexed: 01/07/2023]
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36
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Jiang T, Wan Y, Zhang YD, Zhou JS, Gao Q, Zhu XC, Shi JQ, Lu H, Tan L, Yu JT. TREM2 Overexpression has No Improvement on Neuropathology and Cognitive Impairment in Aging APPswe/PS1dE9 Mice. Mol Neurobiol 2016; 54:855-865. [PMID: 26780455 DOI: 10.1007/s12035-016-9704-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 01/05/2016] [Indexed: 01/12/2023]
Abstract
Previously, we showed that overexpression of triggering receptor expressed on myeloid cells 2 (TREM2), a microglia-specific immune receptor, in the brain of a middle-aged (7 months old) APPswe/PS1dE9 mice could ameliorate Alzheimer's disease (AD)-related neuropathology by enhancement of microglial amyloid-β (Aβ) phagocytosis. Since AD is an age-related neurodegenerative disorder, it is critical to assess the efficacy of TREM2 overexpression in aging animals with an advanced disease stage. In vivo, we employed a lentiviral strategy to overexpress TREM2 in the brain of aging (18 months old) APPswe/PS1dE9 mice, and observed its efficacy on AD-related neuropathology and cognitive functions. Afterwards, we directly isolated microglia from middle-aged and aging APPswe/PS1dE9 mice and determined effects of TREM2 overexpression on microglial Aβ phagocytosis and Aβ-binding receptors expression in vitro. In aging APPswe/PS1dE9 mice, TREM2 overexpression has no beneficial effect on AD-related neuropathology and spatial cognitive functions. Of note, in vitro experiments showed a significant reduction of Aβ phagocytosis in microglia from aging APPswe/PS1dE9 mice, possibly attributing to the declined expression of Aβ-binding receptors. Meanwhile, this phagocytic deficit in microglia from aging APPswe/PS1dE9 mice cannot be rescued by TREM2 overexpression. Taken together, our study shows that TREM2 overexpression fails to provide neuroprotection in aging APPswe/PS1dE9 mice, possibly attributing to deficits in microglial Aβ phagocytosis at the late-stage of disease progression. These findings indicate that TREM2-mediated protection in AD is at least partially dependent on the reservation of microglial phagocytic functions, emphasizing the importance of early therapeutic interventions for this devastating disease.
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Affiliation(s)
- Teng Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China. .,Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA, USA.
| | - Yu Wan
- Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qing Gao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xi-Chen Zhu
- Department of Neurology, Qingdao Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Jian-Quan Shi
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Huan Lu
- Department of Neurology, Qingdao Municipal Hospital, Nanjing Medical University, Nanjing, China
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, China. .,Department of Neurology, Qingdao Municipal Hospital, Nanjing Medical University, Nanjing, China.
| | - Jin-Tai Yu
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA, USA.
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Shi GM, Jiang T, Zhang H, Li MH, Wang M, Liu YK, Chao Shi H, Zhou F, Huang Q, Zhang LY, Zhou JS, Zhang YD. Carotid Endarterectomy and Carotid Artery Stenting Lead to Improved Cognitive Performance in Patients with Severe Carotid Artery Stenosis. Curr Neurovasc Res 2016; 13:45-9. [DOI: 10.2174/1567202613666151116143757] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 10/13/2015] [Accepted: 11/02/2015] [Indexed: 11/22/2022]
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Jiang T, Tan L, Zhu XC, Zhou JS, Cao L, Tan MS, Wang HF, Chen Q, Zhang YD, Yu JT. Silencing of TREM2 exacerbates tau pathology, neurodegenerative changes, and spatial learning deficits in P301S tau transgenic mice. Neurobiol Aging 2015; 36:3176-3186. [DOI: 10.1016/j.neurobiolaging.2015.08.019] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 08/03/2015] [Accepted: 08/18/2015] [Indexed: 01/10/2023]
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Shi GM, Zhang YD, Geng C, Zhang YQ, Pan XD, Liu YK, Yang J, Zhou JS. Profile and 1-Year Outcome of Ischemic Stroke in East China: Nanjing First Hospital Stroke Registry. J Stroke Cerebrovasc Dis 2015; 25:49-56. [PMID: 26409718 DOI: 10.1016/j.jstrokecerebrovasdis.2015.08.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 07/11/2015] [Accepted: 08/24/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The profile and 1-year outcome after acute ischemic stroke (AIS) in Nanjing, China, is uncertain. This study aimed to investigate the profile and outcome after 1-year follow-up of AIS in East China. METHODS In a prospective cohort study, 2168 patients with AIS were recruited consecutively. The primary outcome was death or dependency defined as a modified Rankin Scale score of 3-6 at 12 months. Plausible risk factors of death or dependency, such as demographics, risk factors of cardiovascular diseases, clinical features, laboratory results, and complications after a stroke, were selected from available variables to perform multivariable logistic regression analyses. RESULTS Eight hundred thirty-seven (38.6%) patients died or suffered from dependency. Multivariate logistic regression analysis showed that age (odds ratio [OR], 1.04; 95% confidence interval [CI], 1.03-1.05), history of diabetes mellitus (OR, 1.50; 95% CI, 1.10-2.04), prior stroke (OR, 2.08; 95% CI, 1.51-2.87), National Institutes of Health Stroke Scale (NIHSS) score (OR, 23.06; 95% CI, 14.24-37.34), estimated glomerular filtration rate (OR, 1.65; 95% CI, 1.02-2.66), pulmonary infection (OR, 2.98; 95% CI, 2.17-4.09), and gastrointestinal bleeding (OR, 7.81; 95% CI, 2.76-22.09) were significantly and independently associated with higher rates of mortality or disability (all P values < .05). Male gender (P values < .001) was the only factor associated with lower mortality or disability. CONCLUSIONS The main dominating predictors for death or dependency were older age, female gender, diabetes mellitus, prior stroke, NIHSS score, estimated glomerular filtration rate, pulmonary infection, and gastrointestinal bleeding.
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Affiliation(s)
- Guo-Mei Shi
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Cong Geng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yu-Qiao Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xi-Ding Pan
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yu-Kai Liu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jie Yang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Jun-Shan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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Xia SL, Zhang XB, Zhou JS, Gao X. Comparative efficacy and safety of the left versus right radial approach for percutaneous coronary procedures: a meta-analysis including 6870 patients. ACTA ACUST UNITED AC 2015; 48:743-50. [PMID: 26108097 PMCID: PMC4541695 DOI: 10.1590/1414-431x20154571] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 03/02/2015] [Indexed: 11/22/2022]
Abstract
The radial approach is widely used in the treatment of patients with coronary artery
disease. We conducted a meta-analysis of published results on the efficacy and safety
of the left and right radial approaches in patients undergoing percutaneous coronary
procedures. A systematic search of reference databases was conducted, and data from
14 randomized controlled trials involving 6870 participants were analyzed. The left
radial approach was associated with significant reductions in fluoroscopy time
[standardized mean difference (SMD)=-0.14, 95% confidence interval (CI)=-0.19 to
-0.09; P<0.00001] and contrast volume (SMD=-0.07, 95%CI=-0.12 to -0.02; P=0.009).
There were no significant differences in rate of procedural failure of the left and
the right radial approaches [risk ratios (RR)=0.98; 95%CI=0.77-1.25; P=0.88] or
procedural time (SMD=-0.05, 95%CI=0.17-0.06; P=0.38). Tortuosity of the subclavian
artery (RR=0.27, 95%CI=0.14-0.50; P<0.0001) was reported more frequently with the
right radial approach. A greater number of catheters were used with the left than
with the right radial approach (SMD=0.25, 95%CI=0.04-0.46; P=0.02). We conclude that
the left radial approach is as safe as the right radial approach, and that the left
radial approach should be recommended for use in percutaneous coronary procedures,
especially in percutaneous coronary angiograms.
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Affiliation(s)
- S L Xia
- Affiliated Nanjing Jiangbei People's Hospital, Department of Cardiology, Southeast University, Nanjing, Jiangsu, China
| | - X B Zhang
- Affiliated Nanjing Jiangbei People's Hospital, Department of Cardiology, Southeast University, Nanjing, Jiangsu, China
| | - J S Zhou
- Affiliated Nanjing Jiangbei People's Hospital, Department of Cardiology, Southeast University, Nanjing, Jiangsu, China
| | - X Gao
- Affiliated Nanjing Jiangbei People's Hospital, Department of Cardiology, Southeast University, Nanjing, Jiangsu, China
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Jiang T, Zhang YD, Zhou JS, Zhu XC, Tian YY, Zhao HD, Lu H, Gao Q, Tan L, Yu JT. Angiotensin-(1-7) is Reduced and Inversely Correlates with Tau Hyperphosphorylation in Animal Models of Alzheimer’s Disease. Mol Neurobiol 2015; 53:2489-97. [DOI: 10.1007/s12035-015-9260-9] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 05/28/2015] [Indexed: 12/29/2022]
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Li DH, Yang Q, Zhou JS, Zhang ZW, Miao MY, Yang SS, Xu WD. Regulatory role of B-cell maturation antigen on the toxic effect of chromium ions on human SaOS-2 osteoblasts. Biotechnol Appl Biochem 2015; 64:638-646. [PMID: 26011700 DOI: 10.1002/bab.1401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 05/21/2015] [Indexed: 01/07/2023]
Abstract
Metal prostheses of artificial joints undergo wear, producing numerous metal particles and ions, such as Cr3+ . Cr3+ is considered a key factor leading to aseptic loosening. Many studies focus on the effect of Cr3+ on osteoblasts; however, little is known about the effect of Cr3+ on the B-cell maturation antigen (BCMA) in the osteoblasts. In this study, we first demonstrated the BCMA expressed in human SaOS-2 osteoblasts through reverse transcriptase-PCR, Western blot, and immunocytochemical analyses. Cr3+ decreased alkaline phosphatase (ALP), osteocalcin (OC), cell mineralization, and collagen type I mRNA and protein expression. Moreover, Cr3+ has an inhibitive effect on the expression of the BCMA in human SaOS-2 osteoblasts. However, after we upregulated the expression of the BCMA, ALP, OC, cell mineralization, and collagen type I mRNA and protein expression were increased. Overall, this study demonstrates that the BCMA is involved in human SaOS-2 osteoblast osteogenetic metabolism and plays a regulatory role on the toxic effect of chromium ions on human SaOS-2 osteoblasts.
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Affiliation(s)
- D H Li
- Department of Orthopedics, Changhai Hospital Affiliated to the Second Military Medical University, Yangpu, Shanghai, People's Republic of China
| | - Q Yang
- Department of Orthopedics, Changhai Hospital Affiliated to the Second Military Medical University, Yangpu, Shanghai, People's Republic of China
| | - J S Zhou
- Department of Biochemistry and Molecular Biology, Second Military Medical University, Yangpu, Shanghai, People's Republic of China
| | - Z W Zhang
- Department of Biochemistry and Molecular Biology, Second Military Medical University, Yangpu, Shanghai, People's Republic of China
| | - M Y Miao
- Department of Biochemistry and Molecular Biology, Second Military Medical University, Yangpu, Shanghai, People's Republic of China
| | - S S Yang
- Department of Biochemistry and Molecular Biology, Second Military Medical University, Yangpu, Shanghai, People's Republic of China
| | - W D Xu
- Department of Orthopedics, Changhai Hospital Affiliated to the Second Military Medical University, Yangpu, Shanghai, People's Republic of China
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Yang J, Zhou JS, Zhao YX, Yang ZH, Zhao HD, Zhang YD, Zou JJ. ABCB1 hypomethylation is associated with decreased antiplatelet effects of clopidogrel in Chinese ischemic stroke patients. Pharmazie 2015; 70:97-102. [PMID: 25997249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Current predictive models including the CYP2C19 polymorphism and clinical factors still explain only about 12% of variability of clopidogrel responsiveness. Up until recently, the precise mechanism of clopidogrel resistance remains unclear. P-glycoprotein (P-gp) encoded by ABCB1, a transmembrane calcium-dependent efflux pump for clopidogrel, implicated a role in clopidogrel resistance. In this present study, we investigated the methylation status of ABCB1 gene promoter in relation to ABCB1 mRNA expressions and the antiplatelet effects of clopidogrel. This study was a prospective cohort analysis of eligible stroke patients (n = 183, aged 18-75 years) who received clopidogrel (75 mg/day) for at least 5 days before discharge. A final subcohort of 87 patients with CYP2C19*1/*1 genotype were enrolled in the study population. Patients were grouped in quartiles of maximum platelet aggregation (MPA values (Q1, Q2, Q3 and Q4, MPA(Q1) < 14.1%, MPA(Q4) > 35.4%). The methylation status of the ABCB1 promoter was 1.8 times in the Q1 MPA group (10.1 ± 2.4%) than in the Q4 MPA group (5.5 ± 2.1%) (P < 0.001). ABCB1 methylation correlated inversely with MPA (R = - 0.764, P < 0.001) and mRNA expression (R = - 0.839, P < 0.001). Results of a multivariate linear regression model demonstrated that ABCB1 methylation was independently associated with MPA (β(coef ficient) = - 4.71, P < 0.001). ABCB1 expression was 0.62 times in the Q1 MPA group (5.3 ± 1.4 per thousand) than in the Q4 MPA (8.5 ± 2.5%o), and the expression of ABCB1 correlated positively with ADP-induced MPA (R = 0.791, P < 0.001). ABCB1 promoter methylation status in whole blood appears to be inversely associated with ABCB1 mRNA expressions and MPA. In conclusions, hypomethylation of ABCB1 promoter is associated with a decreased response to clopidogrel in ischemic stroke patients via increased ABCB1 mRNA expression.
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Yang J, Zhou JS, Zhang YD, Tian YY, Zou JJ. The association of ABCC3 promoter methylation with clopidogrel response in Chinese ischemic stroke patients. Pharmazie 2014; 69:764-768. [PMID: 25985567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Multidrug resistance protein 3 (MRP3), encoded by ABCC3, is an ATP-dependent efflux pump mediating the transport of many drugs, implicated in clopidogrel resistance. This study enrolled 87 ischemic stroke patients with CYP2C1 9*1/*1 genotype, who received clopidogrel (75 mg/day) for at least 5 days before discharge. The maximum platelet aggregation (MPA) was measured by light transmittance aggregometry (LTA) to assess platelet function. Whole blood samples were obtained to evaluate the ABCC3 promoter methylation and mRNA expression of ABCC3. Pyrosequencing was carried out to investigate ABCC3 methylation and ABCC3 mRNA expression was evaluated by qPCR. The ABCC3 methylation was neither significantly different among the four MPA quartile groups (P = 0.275) nor independently associated with MPA values (R = 0.100, P = 0.358). However, the ABCC3 promoter methylation status in 87 clinical samples from patients correlated inversely with the expression of ABCC3 (R = - 0.854, P < 0.001). In addition, the ABCC3 expression was neither significantly different among the four quartile groups (P = 0.499) nor independently associated with MPA values (R = 0.060, P = 0.582). ABCC3 promoter methylation does not seem to exhibit any impact on MPA and clopidogrel response at all.
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Abstract
Numerous studies have evaluated the association between MTHFR C677T polymorphism and osteoporotic fracture risk in postmenopausal women. However, the results have been inconsistent. We performed a meta-analysis of the association between MTHFR C677T polymorphism and osteoporotic fracture risk in postmenopausal women. Only seven case-control studies were retrieved, with a total of 4258 patients and 3454 healthy controls. Meta-analysis results showed no significant association between MTHFR C677T polymorphism and osteoporotic fracture risk in postmenopausal women for all genetic models (for TT vs CC: OR=0.99, 95%CI=0.72-1.39; for TT vs TC: OR=1.02, 95%CI=0.87-1.20; for CC+TC vs TT: OR=0.96, 95%CI=0.71-1.28; for TT+TC vs CC: OR=0.93, 95%CI=0.84-1.03). In the subgroup analysis by ethnicity, the results also showed no significant association between MTHFR C677T polymorphism and susceptibility to osteoporotic fracture in postmenopausal women in both Caucasian and Asian populations. In conclusion, this meta-analysis suggests that MTHFR C677T polymorphism may not be associated with susceptibility to osteoporotic fracture in postmenopausal women.
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Affiliation(s)
- J Z Guan
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - M Wu
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Y Z Xiao
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - J S Zhou
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Z D Wang
- Anhui Key Laboratory of Tissue Transplantation, Institute of Orthopaedics & Traumatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
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Liu CM, Shi BZ, Zhou JS. Effects of thrombin on the secondary cerebral injury of perihematomal tissues of rats after intracerebral hemorrhage. Genet Mol Res 2014; 13:4617-26. [PMID: 25036511 DOI: 10.4238/2014.june.18.4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to investigate the effects of thrombin released in hematoma after intracerebral hemorrhage (ICH) on the cerebral injury of perihematomal tissues and to evaluate the protection effect of hirudin on the cerebral injury after ICH. We used the autologous uncoagulated blood injection method to prepare the ICH rat model, and all rats were randomly divided into a normal group, an ICH group, or a hirudin group. At different time points, rat heads were cut to harvest brain sections. Immunohistochemical staining, histochemical staining, and hematoxylin and eosin staining were conducted for CD34, microglia, and neutrocytes. CD34-positive microvessels were most abundant in brain tissues of the sham-operation group. At 12 h after ICH, CD34 expression reduced and reached the minimum level at 72 h (P<0.01). At 6 h after ICH, microglia expression was visible and reached a peak at 48 h (P<0.01). At 12 h after ICH, neutrocyte infiltration was visible and the number was greatest at 48 h (P<0.01). The early application of hirudin after ICH could significantly reduce microglia and neutrocyte expression and could significantly slow down the CD34 decrease trend (P<0.01). However, hirudin application in the edematization stage after ICH did not significantly increase CD34- positive microvessel abundance (P>0.05). A thrombin-mediated inflammatory reaction is involved in the cerebral injury after ICH, and the early application of hirudin has a protective effect.
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Affiliation(s)
- C M Liu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - B Z Shi
- Yuhua Hospital of Yuhuatai District, Nanjing City, China
| | - J S Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Yang J, Zhou JS, Tan J, He BS, Zou JJ. Paraoxonase-1 Q192R polymorphism is not associated with clopidogrel response in Chinese stroke patients. Pharmazie 2012; 67:1026-1029. [PMID: 23346768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
It is well known that CYP2C19*2/*2 is associated with attenuated response to clopidogrel, but recent findings indicated that in white patients, paraoxonase-1 (PON1) 192Q/Q was a major determinant of clopidogrel efficacy. The objective of this research was to assess the impact of PON1 Q192R polymorphism on the maximum platelet aggregation (MPA) and the anti-platelet effect of clopidogrel in clopidogrel-treated Chinese stroke patients. The study recruited 183 eligible Chinese stroke patients treated with a loading dose of 300-mg clopidogrel and a 75-mg daily maintenance dose. CYP2C19*2 and PON1 Q192R were genotyped, a subcohort of 13 patients with CYP2C19 *2/*2 genotype was excluded. Finally 170 patients with CYP2C19*1/*1 (wild-type homozygotes, n = 87) or CYP2C19*1/*2 (mutant heterozygotes, n = 83) were enrolled in the study population. These patients were divided into three groups according to their PON1 Q192R genotype: wild-type homozygotes, PON1 192QQ, n = 17; mutant heterozygotes, PON1 192QR, n = 81; mutant homozygotes, PON1 192RR, n = 72. MPA was measured by light transmittance aggregometry (LTA) to assess platelet function after seven 75-mg maintenance doses of clopidogrel before discharge. In those patients who were carriers of 1 mutant allele (PON1 Q/R192), ADP-induced MPA were not significantly different compared with wild-type homozygous patients [30.5% (IQR, 17.5 to 49.1%) versus 25.0% (IQR, 10.0 to 52.5%), respectively; P = 0.910]. In addition, in the patients who were carriers of the 2 mutant allele (PON1 R/R192), MPA were also not significantly different from wild-type homozygous patients [29.2% (IQR, 15.0 to 43.4%) versus 25.0% (IQR, 10.0 to 52.5%), respectively; P = 0.717]. Results of a multivariable linear regression model demonstrated that PON1 192R allele carriage was not independently associated with ADP-induced MPA measurements (P = 0.408). PON1 Q192R polymorphism does not seem to exhibit any impact on MPA and clopidogrel response at all.
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Affiliation(s)
- Jie Yang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Chen C, Ye M, Chen BL, Chen GF, Gao ZQ, Zhou JS, Cheng QT, Wu MH, Zhang MJ, Qian L, Xu Y. Thrombolysis on ischemic stroke patients with decreased level of consciousness within 4.5 h. CNS Neurosci Ther 2012; 19:48-52. [PMID: 23167919 DOI: 10.1111/cns.12030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 10/04/2012] [Accepted: 10/04/2012] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Few reports concerned on recombinant tissue plasminogen activator (rt-PA) treatment in stroke patients with decreased consciousness. This study assesses the efficacy and safety of intravenous rt-PA administration within 4.5 h in stroke patients with decreased consciousness. METHODS A total of 136 stroke patients with decreased consciousness, who received or not rt-PA intravenously within 4.5 h after stroke onset from Jiangsu province of China from 2009 to 2012, were reviewed retrospectively. Glasgow Coma Scale (GCS), National Institute of Health Stroke Scale (NIHSS), intracranial hemorrhage rate, and mortality were used to determine patient outcome when discharged. A 3-month outcome was calculated by modified Rankin Scale (mRS) with score 0 to 1 considered favorable outcome. RESULTS Baseline characteristics of two groups were similar. When discharged, no significant differences were observed regarding NIHSS score (P = 0.994) or GCS score (P = 0.591) between groups. After 3 months, 22.8% patients in rt-PA group had favorable outcome as compared with 7.5% patients in control group (P = 0.014). Treatment with rt-PA did not significantly increase incidence of hemorrhage (P = 0.494) or mortality (P = 0.169). CONCLUSIONS Intravenous rt-PA administration within 4.5 h after onset of symptoms benefited stroke patients with abnormal consciousness.
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Affiliation(s)
- Cong Chen
- Department of Neurology, Drum Tower Hospital of Nanjing Medical University, China
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Xin Y, Zhou HD, Cheng JG, Zhou JS, Goodenough JB. Study of atomic structure and electronic structure of an AA'3B4O12 double-perovskite CaCu3Ir4O12 using STEM imaging and EELS techniques. Ultramicroscopy 2012; 127:94-9. [PMID: 22951264 DOI: 10.1016/j.ultramic.2012.07.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A newly discovered 1:3 A-site-ordered AA'3B4O12 perovskite oxide CaCu3Ir4O12 which has unusual electrical and magnetic properties was investigated using STEM imaging and EELS techniques in a probe corrected microscope. The target sample was compared with the other two iso-structural oxides of CaCu3Ru4O12 and CaCu3Ti4O12 with dissimilar physical properties. It has been found by STEM HAADF imaging that Ca and Cu on A and A' sites are ordered as expected. Oxygen atoms are imaged with STEM ABF imaging. The fine structures of the Cu L2,3 core loss and O-K edges show that the electronic structure of CaCu3Ir4O12 is very close to that of CaCu3Ru4O12, but different from CaCu3Ti4O12. The O-K near edge fine structures show extensive hybridization of Ir 5d and O 2p band. Cu L2,3 peaks indicate Cu in CaCu3Ir4O12 has 2+ valence, though Cu(2+) electrons mainly localized, they might have strong interactions with Ir(4+) 5d electrons through Ir-O-Cu, similar to the strong coupling of Ru with Cu in CaCu3Ru4O12.
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Affiliation(s)
- Y Xin
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA.
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Zhou HD, Cheng JG, Hallas AM, Wiebe CR, Li G, Balicas L, Zhou JS, Goodenough JB, Gardner JS, Choi ES. Chemical pressure effects on pyrochlore spin ice. Phys Rev Lett 2012; 108:207206. [PMID: 23003185 DOI: 10.1103/physrevlett.108.207206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Indexed: 06/01/2023]
Abstract
A comparison among the two sets of studied pyrochlore spin ices, Ho2Sn2O7, Ho2Ti2O7, and Ho2Ge2O7 with Ho3+ spins and Dy2Sn2O7, Dy2Ti2O7, and Dy2Ge2O7 with Dy3+ spins, shows that the application of chemical pressure through each set drives the system toward the antiferromagnetic phase boundary from the spin ice region, which agrees with the prediction of the "dipolar spin ice" model of den Hertog and Gingras. Among all the studied pyrochlore spin ices, Dy2Ge2O7 has the smallest ratio of Jnn/Dnn=-0.73.
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Affiliation(s)
- H D Zhou
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306-4005, USA
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